Bien Phap Thi Cong He Thong DHKK, Thong Gio, Cap Nhiet TT HNQG

8/1/2019 Bien Phap Thi Cong He Thong DHKK, Thong Gio, Cap Nhiet TT HNQG

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BIEN PHAP THI CONG CHI TIETHE THONG IEU HOA KHONG KH THONG GIO VA CAP NHIET

A. TONG QUAN CONG VIEC

He thong ieu hoa khong kh thong gio va cap nhiet cua Cong trnh Trung Tam HoiNgh Quoc Gia bao gom cac thiet b vat t chnh sau :

1. He thong ieu hoa khong kh :

1.1. He thong cap lanh

- Chiller giai nhiet gio

- He thong bm tuan hoan nc lanh

- Thiet b x ly khong kh (AHU) va thiet b trao oi nhiet: FCU, UCF

- He thong ng ong cap nc lanh va cac phu kien lap at

- He thong van can bang, van chan, li loc, van xa kh, van ieu chnh, van motchieu, he thong ong gop, cac he thong ong noi mem.

- He thong bao on, cach nhiet va chong chay cac ng ong.

- Cac thiet b phu, gia treo, bu long treo.- Cac phu kien va vat lieu khac.

1.2. He thong cap nhiet.

- Thiet b cap nhiet

- Thiet b trao oi nhiet

- Cac bon cha co gan cac he thong cap nhiet bo sung.

- He thong ng ong va cac phu kien.- Cac he thong van va li loc

- Cac phu kien vat lieu phu khac.

2. He thong thong gio va hut khoi

- He thong quat cap gio ti, gio thai va thai khoi trong trng hp co chay.

- He thong ng ong gio cap, gio hoi, gio thai, he thong ong gio thai khoi chunhiet cao

- He thong ong noi mem (flexible duct)

- He thong van can bang, van ieu ap va van 1 chieu.

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- He thong thiet b phan phoi gio, tieu am, mieng thoi, mieng hut.

- He thong bao on cho ng ong gio, chong chay.

- He thong thoat kh cho nha bep.

- He thong cach nhiet,chong chay cho cac ng ong thong gio.

- Thap trao oi gio ti, gio thai.

- Cac phu kien va vat lieu phu khac

3. He thong cung cap ien ieu khien cho he thong ieu hoa, thong gio, cap nhiet.

- He thong ien ong lc.

- He thong tu bang ien

4. He thong va kiem soat cho :

4.1. He thong nc lanh gom :

- 24 Chiller

- Bm tuan hoan s cap,th cap nc lanh.

- Cac van ien trong he thong ng ong cung cap lanh.

4.2. He thong nc nong gom :

-

02 Heat recovery chiller- Bm tuan hoan s ,th cap nc nong.

- Cac van ien trong he thong ng ong cung cap nc nong.

B. S O TO CHC HIEN TRNG VA BIEN PHAP TO CHC THI CONG

Vi nhieu nam kinh nghiem trong lanh vc thi cong lap at he thong ieu hoa khong kh,thong gio va cap nhiet, e cho mot d an hoan thanh ung tien o va am bao chatlng, Nha Thau chung toi luon hoach nh cho mnh mot ke hoach thi cong chi tiet, quy

trnh o c thc hien mot cach trnh t, hp ly va bat buoc moi cong trnh phai thchien ung theo quy trnh a lap.

1. Muc ch cong viec :Xac nh c noi dung cong viec thi cong lap at bo am v k thut ,cht lngthc hien cong trnh ung tien o.

2. Pham vi cong viec:Cong viec c tien hanh theo tien o chi tiet ban ve thi cong va cac tieu chuan kythuat tng hang muc cua he thong trong hp ong .

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3. S o to chc nhan s lap at he thong ieu hoa khong kh-thong gio va capnhiet..

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4. S o cong viec lap at he thong ieu hoa khong kh thong gio va cap nhiet.

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5. Kiem tra chat lng thi cong :

5.1. Muc ch :Nham thiet lap, kiem tra van hanh, quan ly va bao tr sau nay cho tng hang muc thicong theo ung tieu chuan ky thuat va ban ve thi cong a c chap thuan. Qui trnhnay cung cap cho ben A va chu au t mot cach nhn tong quat toan bo hang muc thicong e cung ben B tien hanh kiem tra nghiem thu lap at he thong

5.2. Qui trnh thc hien:Bat ky hang muc thi cong nao eu phai co mot danh muc kiem tra ve chat lng thicong qui chuan e am bao cong viec c thc hien ung theo yeu cau ky thuatcua hang muc. lo trnh kiem tra nay phai nh kem bieu mau nghiem thu tai congtrng cua ben A va Chu au T.

5.3. Kiem tra vat t va thiet bToan bo vat t thiet b nhap khau hoac mua trong nc eu phai co bieu mau kiemtra ve chat lng va tieu chuan ky thuat cho tng loai. Tat ca thiet b,vat t a vao s dung cho cong trnh eu phai c e trnh cho BenA va Chu au T va phai c chap thuan trc khi a hang en cong trng, ongthi nhng vat t phai thoa man tieu chuan ky thuat cung nh chat lng ma hpong a e ra.

5.4.Kiem tra trong qua trnh giao nhan

Danh muc bieu mau kiem tra nh sau:

o Tieu chuan ky thuat

o Hang muc s dung

o So lng

o Chng ch chat lng hang hoa

5.5. Nghiem thu trong qua trnh lap atTat ca cac hang muc thi cong eu phai co bieu mau nghiem thu lap at nham anhgia cong viec cung nh sa cha khi co sai sot trong thi cong. bieu mau nay phai ikem vi mau kiem tra tai cong trng do ben A va chu au t ban hanh

5.6. Bao cao th nghiemBat ky hang muc cong viec nao cung eu phai co bieu mau bao cao th nghiem ac ben A va chu au t chap thuan.

5.7. Bao cao th nghiem cuoi cung

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Bao cao nghiem thu hoat ong phai c ben A va Chu au T chap thuan nhambao am toan bo he thong c lap at a van hanh ung theo Tieu chuan ky thuatyeu cau.5.8. Cac ho s ky thuat ban giao:Ban ve hoan cong, tai lieu ky thuat cua thiet b va cac bien ban nghiem thu tng

phan kiem nghiem va nghiem thu he thong eu c ban giao cho ben A va Chu auT.

6. May moc dung cu thi cong :Dung cu: Xem bang liet ke chi tiet dung cu thi cong cua Ben A (Mau E)

7. An toan lao ong va chong chay no :1. Ca cong nhan lam viec tren cong trng eu c huan luyen va hng dan ve

an toan lao ong, phong chay chong no.

2. am bao u anh sang khu vc thi cong.3. am bao ve sinh, thong thoang khu vc thi cong.4. Phai co bien bao, rao chan khu vc ang thi cong.5. Trang b ay u bao ho lao ong cho con ngi.6. Kiem tra an toan lao ong trc khi vao khu vc thi cong.7. Trang b bnh cha chay.8. Tat ca thiet b co lien quan en cong viec phai thong qua giam sat an toan laoong cong trnh kiem tra nh :

Tu ien co phai co thiet b chong ro va c kiem tra cach ien.

Bm nc: Phai c kiem tra cach ien.

May han: Phai c kiem tra cach ien.

May cat: Phai c kiem tra cach ien

May mai: Phai c kiem tra cach ien.

Bo en gio a: Phai co kiem nh

8. Cong tac ve sinh moi trng :- Cong tac nay cung c at ra mot cach nghiem tuc nham am bao ve sinh moi

trng tai cong trng va ca khu vc chung quanh.

- Cong viec phai tien hanh lam au gon o, vat t,vat lieu dung cu thi cong phai ngannap co kho cha, khong e ba bai tren cong trng kho quan ly, va gay can tr choi lai cho cong tac an toan lao ong va ve sinh moi trng.

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9. Bien phap an ninh trat t :- e am bao tot cho cong viec nay, viec tuyen chon nhan lc tren cong trng eu s

dung cong nhan cua cac oi a qua qua trnh chon la. So lao ong pho thong thi vutai a phng cung c tuyen chon ky.

- Lap danh sach can bo cong nhan vien tham gia tren cong trng c s xac nhancua c quan chu quan va phai ang ky tam tru vi cong an a phng. Trong quatrnh thi cong phai chap hanh ung cac qui nh cua a phng va c quan nha nc.

- Cung tham gia va phoi hp vi a phng e gi gn an ninh trat t cong cong taikhu vc thi cong.

- Nghiem cam to chc c bac, ru che, gay go anh nhau tren cong trng.

- Chap hanh ung noi quy cong trng.

- Khong c an nau nng tren cong trng

- Co the ra vao

- Co may cham cong nham kiem tra gi giac lam viec cung nh kiem soat s ra vaocua nhan vien

- Hang ngay kiem tra trang b bao ho ca nhan trc khi vao cong trng.

C. BIEN PHAP THI CONG CHI TIET

I. CHUAN B :

1. Lap van phong kho cong trng va chuan b ien nc thi cong- Sau khi hp ong c ky Ben B se tien hanh ngay lap van phong, kho cong trng

va ien nc thi cong.

- Van phong se c xay dng vi dien tch 200m2 va c trang b ay u cac thietb nh: May tnh, ban ghe, ien thoai, may fax, may photocopy va cac dch vu khacnh Email,trang b s cap cu.

- Kho cong trng se c xay dng vi dien tch 800m2 c trang b ay anh sangva cac khung ke ng vat t, thiet b

- Nguon ien nc thi cong, se c keo en tng khu vc thi cong va c lap at tat ca cac tang .

- Xay dng nha ve sinh cong trng

- Trang b anh sang cac khu vc thi cong

- Lien he vi c quan y te a phng e cap cu trong trng hp co tai nan xay ra.

2. Chuan b ho s ky thuat thiet b vat t trnh cho ben A va chu au t duyet:

Ngay sau khi hp ong c ky,tat ca cac ho s thiet b vat t s dung cho congtrng a c Ben B c chuan b mot cach ay u va chnh xac. Sau khi hpong c ky Ben B se tien hanh trnh duyet ngay ho s thiet b vat t cho ben Ava Chu au T phe duyet.

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3. Chuan b ban ve chi tiet gia cong che tao & lap at cua he thong trnh cho benA va Chu au T duyet:

- Sau khi hp ong c ky Ben B se tien hanh thc hien ngay ban ve chi tiet thicong.

- Trong qua trnh ch xay dng van phong cong trng ban ve se c thc hien taivan cong ty va tai van phong chi nhanh Ben B tai Ha Noi.

- oi ngu ky s thc hien ban ve la nhng ngi nhieu nam kinh nghiem va a tngtham gia cho nhng d an ln nh : San bay quoc te Tan Sn Nhat, Noi Bai, VicomTower

- Ban ve c chia ra thanh nhieu khu vc va thc hien theo tien o a lap khi thchien xong khu vc nao th se tien hanh trnh duyet ngay cho ben A va chu au tduyet e tien hanh thi cong.

4. Mua sam thiet b - vat t :- Sau khi ho s thiet b - vat t c ben A va Chu au T duyet, Ben B se tien hanh

ngay hp ong mua sam thiet b vat t cho cong trnh.

- Trong qua trnh chuyen b ho s trnh duyet Ben B a tien hanh thc hien cac thu tucmua sam thiet b - vat t vi nhng nha cung cap trong va ngoai nc.

- Cac nha cung cap thiet b - vat t trong va ngoai nc ho a cam ket ho tr cho BenB het sc nhiet tnh. V vay sau khi ho s c duyet th Ben B se tien hanh ngayhp ong mua sam thiet b,vat t va cho en cuoi thang 2 nam 2006 th toan bo thiet

b-vat t a co ay u tren cong trng. ay la mot yeu to c ban thuan li choBen B ve tien o cung cap vat t thiet b cung nh tien o thi cong .

- Tat ca cac thiet b- vat t nhap khau sau khi ve en cang Viet Nam se c bophan phu trach giao nhan Ben B thc hien mot cach nhanh chong, sau o bo phanphu trach van chuyen se chuyen ve chan cong trng va giao bo phan quan ly khotai cong trng .

- Tat ca cac cong oan giao nhan nay c thc hien va bao cao mot cach ay u choch huy trng cua Ben B, sau o ch huy trng cua Ben B se bao cao ben A vaChu au T va cac ben cung tien hanh kiem tra.

II. GIA CONG CHE TAO

1. Gia cong che tao ong gio :

Nguon ong gio cung cap cho cong trnh se c che tao theo tieu chuan DW142 taixng c kh cua REE tai Ha Noi

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2. Che tao bnh cha va cac ong gop phan phoi lanh & cap nhiet :

Cong viec gia cong, che tao bnh cha va ong gop se c thc hien trong nc binhng nha cung cap noi tieng trong nc ve c kh che tao

- Bnh cha va ong gop c che tao theo phng phap dung thep tam sau o cuon lai

va tien hanh han.- Cac bnh cha va ong gop c khi che tao theo qui pham Viet Nam va am bao

c yeu cau ky thuat cua cong trnh.Sau khi che tao xong se c tien hanh th aplc va c tien hanh kiem nh bi C Quan Kiem nh ve an toan cua Nha Nc.

3. Mang dan day ien :

- c che tao tai Xng c kh Ben B Ha Noi.

- Sau khi che tao xong se c ong goi bao b trc khi van chuyen en cong trng.

4. Che tao tu ien:

Vo tu ien se c che tao tai cac nha cung cap trong nc nh: REETECH, Sunlight.3C va che tao theo tieu chuan cong nghe tap oan Siemen cua c.

III. QUI TRNH CHI TIET QUI TRNH LAP AT HE THONG ONG NC NONG & LANH

1. S o c cau to chc nhan s lap at

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2. S o cong viec lap at va cach nhiet.

3. Bien phap thi cong (Sn chong g trc khi lap at):

a) Van chuyen ong en khu vc thi cong bang xe nang.b) Kiem tra,xac nh v tr lap at ong,phu kien,kch thc ong theo ban ve thi

cong a c phe duyet.c.Lap at ong va phu kien :

* Cat ong :

- Ong thep c cat bang bang may cat sat

o oi vi ong < 250mm se c cat bang may cat vi loai a kim loai.

o oi vi nhng ong > 250mm se c cat bang en Oxy va Acetylen(Oxy acetylene).

- ng cat phai vuong goc vi tam ong.

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- Lam sach vet cat, khong e mat ca bam vao mat trong va mat ngoai cua

ong.

- Trc khi noi ong phai kiem tra chac chan khong co vat la ben trong ong,lam sach mat ca, rac, dau m & song phe ung goc o sao cho ung tieuchuan ieu hoa roi mi rap.

- Khi tam dng cong viec thi cong ng ong, phai bt au ong lai e tranhcac vat la lot vao trong ong.

* Lap at ong vi ong ,ong vi phu kien phng phap ren: oi vi ong thep cong knh nho hn 65 mm :

a.Gia cong ren :

- Ren ong bang may gia cong ren co .0gan bo phan t ong nh kch thc.

- Cat thang goc vi tam ong, cat dan va eu sao cho lp cat c trn lang.Tuy theo tng loai ong ma vt eu mat trong cua au ong.

- Cho lng dau cat thch hp hoac cho dau chay eu vao bo phan cat. Khidau b oi mau do b lan nc vao th can phai thay dau mi.

- Khi rang b loi lom th phai thay li ta ro.

- Xac nhan chieu dai phan ren

- Khi bat au tao ren hoac gia cong th luc thay oi, dung c so (ring gauge)e sao cho au ong vao ung gia cua c so va ieu chnh may tao ren.

- Trc khi lap ong, phai kiem tra va lam sach dau cat, nc, bui am vao

ren, ben trong ong hoac mat cat ong.- Khi noi ren, dung 1 lng va u mot lng sn phu len be mat (khong dung

bot mattit hoac vai).

- Khi van, dung tay van ren roi sau o dung kem siet ong thch hp vi ngknh cua ong va van chat lai (thao tac theo ung qui nh).

- Sau khi noi ren dung sn phu len cac ren d va dau cua kem siet ong.

b.Van ren :

- Dung eboxy boi len toan bo mat ren, khong c dung qua lng can thiet.oi vi ren mat trong th boi en ren th 2 hoac 3.

- Bang keo hi c dung cho ong co ng knh di 50mm.

* Ket noi bang phng phap han (oi vi ong co DN350):e han noi ong dung phng phap han ho quang tay va que han do nha cung

cap ong capTh t cac bc tien hanh nh sau:Cong tac chuan b:

Ong trc khi a vao v tr e han c vat mep cac au bang mo cat ongOxyaxetylen sau o dung may mai cam tay mai sach lp oxit do qua trnh cat tao ra.

Trong qua trnh vat mep cung nh qua trnh han can bo tr cac tam chan bangkim loai tranh hien tng tia la han ban vao lp bao on cua ong gay h hai, ong

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thi gia lp bao on cua ong va tam chan phai quan gie t lam giam nhiet o cuaong khi han, gie luon c gi am sao cho nhiet o cua ong


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Ong c cat bang may cat li thep oi vi ong co 250 va acetylene vi ong

co .250

- theo kch thc chieu dai phu hp.

- Ve sinh moi cat bang may mai tay va vat goc .

- Han ket noi ong vao mat bt vi moi han lp trong va moi han lp ngoai.

- Noi ong co han mat bch vao cac van bang cach lap vao gia moi noigioang phu hp, lap bulon co long en vao cac lo mat bch , siet bulon t ttng cap oi dien nhau, va kiem tra lai hai mat bch khong b venh; khe hgia hai mat bch phai eu nhau.

* Quy trnh ve sinh ng ong trc khi th apToan bo tuyen ong va moi han trc khi th ap lc phai c ve sinh va phai

c can bo ky thuat co chc nang kiem tra vi quy trnh nghiem ngatTrc khi th ap can lam thu tuc va mi ai dien cua ban quan ly d an

(PMB), T van giam sat (PMC) en kiem tra, nghiem thu.* Th ap lc ng ong(bang nc):

- Sau khi ong c lap at xong th tien hanh th ap suat.

- Mi Ben A va Chu au T chng kien th ap lc.

- Bm nc vao ay ng ong va bm tao ap nang ap len en gia tr ap yeucau, ap suat can th bang 1.5 lan ap suat lam viec cua ng ong.

- Gi ap trong ng ong vi thi gian 12 gi.

- Kiem tra th ap lc ng ong.* Quy trnh xuc xac ng ong sau khi th ap va a vao van hanh

Sau khi ng ong c th ap xong va trc khi a vao van hanh can tien hanh xucra ng ong bang cach.

- Dung hoa chat Tandex270 loai hoa chat chuyen dung e tay cau can bam ban trongng ong va pha vi nc co ham lng theo hng dan cua nha cung cap sau odung bm e bm tuan hoan lien tuc 24h sau o xa toan bo phan nc trong ong ratiep o bm nc sach vao va cung tien hanh bm lien tuc cho ti khi xa sach toan

bo cau can va hoa chat trong ng ong.- Sau khi xuc xac ta tien hanh cho nc vao va tien hanh van hanh he thong.

* Boc cach nhiet ong :

Boc cach nhiet bang vat lieu AEROFLEX va boc lp chong chay ben ngoai oikhu vc chong chay vat lieu tole trang kem chu la.

- Sau khi ong c trien khai va lap xong,th tien hanh boc cach nhiet (Chanhng moi han).

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- Trc khi cach nhiet ong phai c ve sinh sach se

- Lp cach nhiet phai ung kch c ong(Khong c ln hoac nho hn)

- Be mat tiep xuc gia ong va lp cach nhiet phai c boi mot lp keo (Keochung dung cho cach nhiet)

- Cac iem noi cua cach nhiet phai c quan lp bang keo chuyen dung

- Sau khi cach nhiet xong th mi tien hanh boc lp chong chay (oi vi khuvc chong chay)

- Sau khi th ap lc xong th tien hanh boc cach nhiet cac moi han va cacphu kien tren ng ong.

LAP AT HE THONG BM NC NONG & NC LANH

1. S o c cau to chc nhan s lap at bm.

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2. S o cong viec lap at:

3. Bien phap thi cong chi tiet :

- Van chuyen bm en khu vc thi cong bang xe nang

- Xac nh v tr lap at bm theo ban ve thi cong a c duyet.- Kiem tra, ve sinh bm trc khi lap rap.

- Tien hanh lap at bm (xem bang ben di)

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Muc Noi dung cong viec Tieu chuan ky thuat Tai lieu ky thuat1.

2

3

4

5

6

7

anh dau v tr va phan loaibm

Kiem tra v tr, kch thc vahnh dang hnh hoc cua nenmong bm

Ve sinh va lam dau v tr cuanen mong bm

Lap at bm va bo chong

rung

Kiem tra va ieu chnh v trbm.

Ve sinh va ong goi bm

Ket noi ong nc va ong ien

- Be mat nen mong bmphai bang phang- Tat ca cac moi noi ben

ngoai cua bm phai phuhp vi ban ve

-Viec lap at c thc hienbi oi ngu cong nhan,ky snhieu kinh nghiem.

- Xac nh chung loai vav tr lap at cua bochong rung

- Tam kim loai cua bochong rung phai c laptrc tiep vao chot trennen mong bm

- Tam kim loai cua bochong rung phai c lap

vao chot neo tren nenmong bm

- Canh ca bm xoay t do- Tat ca bo chong rung

trang thai ng yen t dova on nh

- S dung ni long e btbuong bm moi

- Nhng ong nc cnoi vi bm phai laFlexible

- Ve sinh ong nc trckhi ket noi vi ong vaphu kien

- Tat ca cac moi han phaic ve sinh va sn phet.

- Ban ve shop- Tai lieu ky thuat- Bo chong rung

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8

9

Kiem tra va ieu chnh congviec noi ong

Ban giao cho nhan vien kiemtra

- S dung ong mem e noicap ien vi bm

- Khong at ong nc trctiep vao bm

- Bien ban nghiem thu vaban giao lap at bm.

BIEN PHAP LAP AT MAY CAP LANH (CHILLER) :1. S o c cau to chc nhan s lap at .

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2. S o cong viec lap at.

3. Bien phap thi cong:

a) Van chuyen may cap lanh en khu vc thi cong bang xe cau(tai trong 20 tan)

b) Xac nh v tr lap at may cap lanh theo ban ve thi cong c duyet.

c) Kiem tra,ve sinh may cap lanh trc khi lap rap.d) Tien hanh lap at may cap lanh (Xem bang ben di)

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STT Noi dung cong viec Yeu cau ky thuat Tai lieu ky thuat lien quan

1.1.1

1.2

1.3

1.4

1.5

1.5.1

1.5.2

1.5.3

1.6

2.

Cong viec lap atChillerKiem tra v tr, kch thchnh dang cua be chiller

Don ve sinh va lay dau vtr chiller va bo chongrung

Chuan b nhan s va dungcu thi cong

Chuan b phng tienchuyen chiller

Lap at chiller

Dung xe cau e achiller t kho cong trngen phong may

S dung rong roc e achiller vao v tr lap at

Thao d bao b chiller valap bo chong rung

Ve sinh bao b

Cong viec ket noi

- o nghieng mat phang cuabe


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2.1

2.2

2.3

3.

4.

Noi ong nc

Noi au day nguon

Kiem tra va ieu chnhcong viec au noi

ieu chnh v tr chillerBan giao

vat la vao chiller- Cac moi han phai c sn

mot lp bao ve- Tat ca moi han eu khong r- Khong c lap ong trc

tiep vao may- S dung ong ien mem e

noi vao tu ien chiller

- ieu chnh o rung, onghieng cua chiller phai nhohn 1/1400

- Nghiem thu cong viec lapat

BIEN PHAP LAP AT MAY CAP NHIET (HEAT PUMP) :

1. S o c cau to chc nhan s lap at.

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3. Bien phap thi cong chi tiet:

- Van chuyen may cap nhiet en v tr thi cong bang xe cau (tai trong 25 tan)

- Xac nh v tr lap at may cap nhiet theo ban ve thi cong.

- Kiem tra, ve sinh may cap nhiet trc khi lap rap.

- Tien hanh lap at may cap nhiet (Xem bang ben di)

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Muc NOI DUNG CONG VIEC TIEU CHUAN KY THUAT TAI LIEU KY

THUAT1

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anh dau v tr va phan loaimay cap nhiet

Kiem tra v tr, kch thc vahnh dang hnh hoc cua nenmong may cap nhiet

Ve sinh va lam dau v tr cuanen mong may cap nhiet

Lap at may cap nhiet va bochong rung

Kiem tra va ieu chnh v trmay cap nhiet.

Ve sinh va ong goi may capnhiet

Ket noi ong nc va ong ien

Kiem tra va ieu chnh congviec noi ong

Ban giao lap at

- Be mat nen mong may capnhiet phai bang phang

-Viec lap at c thc hien

bi oi ngu cong nhan,ky snhieu kinh nghiem.

- Tat ca cac moi noi benngoai cua may cap nhietphai phu hp vi ban ve

- Xac nh chung loai va vtr lap at cua bo chongrung

- Tam kim loai cua bochong rung phai c laptrc tiep vao chot tren nenmong may cap nhiet

- Tam kim loai cua bochong rung phai c lapvao chot neo tren nenmong may cap nhiet

- Tat ca bo chong rung trang thai ng yen t dova on nh

- Bao boc lai may cap nhietsau khi lap at xong

- Ve sinh ong nc trc khigan vao may cap nhiet

- Tat ca cac moi han phaic ve sinh va sn phet.

- Tat ca cac moi noi ienphai buoc chat

- S dung ong mem e noigia ong vi may capnhiet

- Khong at ong nc trctiep vao may cap nhiet

- Bien ban nghiem thu vaban giao cong viec lap at

may cap nhiet

- Ban ve shop- Tai lieu ky thuat- Bo chong rung

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BIEN PHAP LAP AT THIET B PHAN PHOI GIO(AHU :


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- Van chuyen AHU en v tr thi cong bang xe nang (tai trong 5 tan)

- Xac nh v tr tng chung loai AHU can lap cac thong so ky thuat va chung loai

phai phu hp ban ve thi cong a c duyet.- Kiem tra, ve sinh AHU trc khi lap rap.

- Tien hanh lap at AHU (Xem bang ben di)

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Noi Dung Cong Viec Yeu Cau Ky Thuat Tai Lieu K.ThuatLien quan

anh dau v tr AHU can lap at.

Chuyen AHU en v tr can Lapat

Lap at AHU

Ve sinh va bao boc AHUCong tac au noi.(ong gio,ongnc,ong ien)

Lap at va au noi ong nc xa.

Kiem tra va ieu chnh AHU

Ban giao lap at AHU

- Tat ca nhng au noi ra vacua ong nc va onggioAHU phai tng thchvi ban ve va thiet b.

-Viec lap at c thc hienbi oi ngu cong nhan,ky snhieu kinh nghiem.-- Khu vc thi cong phai bao

am an toan- Be at AHU phai phang va

ung kch thc.- Lap chong rung bang nhng

tam cao su day 20mm va coo an hoi tot

- Khoang thong thoang xungquanh phai u rong bao trbao dng sau nay.

- Phai tien hanh can chnh ophang cua AHU trc khi

ket noi vi ong nc,onggio va ong nc ngng- Cho canh quat cua AHU

quay t do e kiem tra xemco b ket khong.

- Ong thoat nc ngng cuaAHU co o doc 1% vehng ng nc xa .

- Cac moi han hoac ren ketnoi gia thiet b vi ong

nc phai lam sach va snbao ve.

- Cac moi noi ien phai sietchat

- Ong gio noi vao AHU phaithong qua ong noimem.Hop gio hoi phai coca tham e bao tr,sacha

-Cac iem noi gia ong giova AHU phai dung siliconboi kn.

- Ong nc ngng phai co o

Ban ve thi cong.

Tai lieu ky thuatcatalogues cua thiet b.

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doc 1% ve pha ng ncxa.

- Lap bay nc ngng-Bien ban xac nhan hoan thanhcong viec lap at

BIEN PHAP LAP AT FCU :



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- Van FCU,UCF en khu vc lap at bang xe nang (tai trong 1 tan)

- Xac nh v tr va chung loai FCU,UCF theo ung ban ve thi cong a c duyet.

- Kiem tra, ve sinh FCU,UCF trc khi lap at.

- Tien hanh lap at FCU,UCF (Xem bang ben di)

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Noi Dung Cong Viec Yeu Cau Ky Thuat Tai Lieu K.Thuat

LQuananh dau v tr FCU,UCF canlap at.

Chuyen FCU,UCF en v tr canLap at

Lap at FCU,UCF

Ve sinh va bao boc FCU,UCFCong tac au noi.(ong gio,ongnc,ong ien)

Lap at mang xa phu va aunoi ong nc xa.

Kiem tra va ieu chnhFCU,UCF

Ban giao cong viec lap atFCU,UCF.

- Tat ca nhng au noi ra,vaocua ong nc,ong gio va ongnc ngng FCU,UCF phaitng thch vi ban ve

-Viec lap at c thc hien bioi ngu cong nhan,ky s nhieukinh nghiem.-- Ty treo phai thang va ung

kch thc oi FCU.Con UCFth be mat lap at phai bangphang.

- Dung cao su day 10mm elam giam rung gia UCF vabe mat tiep xuc nh san nhahoac be mong at UCF

- am bao mang nc ngngcua FCU,UCF co o doc 1%ve hng ng nc xa .

- S dung thung nylon e baoboc sau khi lap FCU va UCF.

- Cac moi han (neu co) hoacren oi vi ong nc va phu

kien phai lam sach va snbao ve.- Cac moi noi ien phai siet

chat- Ong gio noi vao FCU, phai

thong qua ong mem.Hop giohoi phai co ca tham e baotr,sa cha.

- Tat ca cac moi ong gio vithiet b phai c boi kn

bang silicon.- Mang xa phu phai co o doc

1% ve pha ng nc xa.- Bay nc xa(neu co) co dang

ch U- Sau khi ieu chnh moi ty

treo phai c siet chat banghai con ai e tranh hientng t thao(oi vi FCU)

-Bien ban xac nhan hoan thanhcong viec lap at

Ban ve thi cong.Tai lieu ky thuatcatalogues thiet b.

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BIEN PHAP LAP AT QUAT :


2. S o cong viec lap at:29 / 69


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- Van chuyen quat en khu vc thi cong bang xe nang (tai trong 1 tan)

- Xac nh v tr lap at,va cac thong so ky thuat cua quat ung theo ban ve thicong.

- Kiem tra, ve sinh quat khi lap at.- Tien hanh lap at quat (Xem bang ben di)

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Stt Noi Dung Cong Viec Yeu Cau Ky Thuat Tai Lieu K.Thuat LienQuan

1.

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Xac nh v tr va loai quat canlap.

anh dau v tr lap quat ,kiem trav tr ,kch thc va hnh dangcua quat

Van chuyen quat t kho congtrng en v tr lap at.

Lap ty treo va bo chong rung.

Lap at quat.

Kiem tra va ieu chnh v trquat.

Ve sinh va bao boc quat.

Cong viec au noi ong gio vaien.

Kiem tra va ieu chnh cong tacau noi.Ban giao cong viec lap at quat.

- Hng va v tr au noi phaithch hp vi ong gio ac lap at.

- Xac nh loai va v tr lapat cua bo chong rung.

- Bao boc bao ve quat trckhi van chuyen.

-Viec lap at c thc hien bioi ngu cong nhan,ky s nhieukinh nghiem.-- Xung quanh khu vc lam

viec phai co vanh ai antoan va bien bao.

- Ty treo phai thang.- am bao bo chong rung phai

ng t do va on nh.- Bo chong rung phai chu

c tai trong cua quat.

- Tat ca cac be mat cua quatphai phang.- V tr va cao o cung nh

kch thc phai phu hp vicac ong gio a lap at.

- Sau khi ieu chnh cao o tytreo phai c xiet bang haicon ai oc e tranh hientng t thao.

- Quay canh quat t do kiemtra xem co b ket khong

- S dung ni long tam e baoboc quat

- Trc khi ket noi vi ong giophai kiem tra xem trongbuong quat co vat la gkhong

- Tat ca ong gio noi en quatphai thong qua ong mem.

-Tat ca moi noi ien phaisiet chat.

- Tat ca moi noi ong gio phaic lam kn bang silicon.

ban ve thi cong,tai lieucatalogues thiet b

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- S dung ong ien mem e

noi en motor quat

-Bien ban xac nhan hoan thanhcong viec lap at.

BIEN PHAP LAP AT HE ONG GIO :1.Noi dung cong viec:

Lap at he thong thong gio va thoat khoi.

2.Pham vi cong viec :

Cong viec c tien hanh theo tien o va ban ve thi cong a c duyet. Tuan thu cac

tieu chuan c qui nh trong ho s mi thau, cac cong viec bao gom: Ong gio ti, gio

thai, gio tuan hoi, gio cap va cac ong gio khu vc chu la.

3. Tai lieu lien quan:

- Ban ve a c chap thuan.

- Vat t a c chap nhan.

4. S o c cau to chc nhan s lap at.32 / 69


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6. Phng phap theo cac bc trnh t :

- nh v tuyen ong theo ban ve thi cong c duyet va lap at gia .

- Van chuyen ong gio t kho cong trnh en ni lap at.

- Bao on ong gio, cach nhiet chong chay.

- Kiem tra, ve sinh ong gio trc khi lap rap.

- Lap at ong gio tren gia theo ung ban ve thi cong.

- Ket noi cac ong gio vi nhau.- Nghiem thu.

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7. Lap at

Trong phan lap at do so lng ong gio ln v vay chu yeu dung cac thiet b chuyen

dung e nang ong gio, cach am, cac van vao v tr theo ban ve a duyet.

7.1. Chuyen va nang ong gio :

- Ong gio c chuyen en v tr thi cong bang xe nang hoac cac phng phapthu cong.

- Nang ong gio e a vao v tr lap at bang thiet b nang chuyen dung SLA-

15, SAL-25, rong roc, palang hoac thu cong.

7.2. Bao on va cach nhiet chong chay ong gio :

- Ve sinh sach be mat ong gio.

- Boi keo len mat inh, tien hanh dan inh len ong gio vi khoang cach gia

cac inh vi nhau la 300 mm, thi gian keo kho 12 gi.

- Cat len cach nhiet theo kch thc ong gio, len cach nhiet lam bang si thuy

tinh co lp bac phu ngoai.

- Dan len cach nhiet len ong gio , len cach nhiet ghim vao inh a dan tren

mat thanh ong gio, be cong inh va c gi chat bang vong em ( washer) .

- Cho ghep bang thep goc se c boc cach nhiet sau khi ong gio a ket noivi nhau.

- Cac vung chu chay boc them vat lieu chong chay Promatect-L500, day

35mm.

7.3. Ket noi ong gio vi ong gio (ket noi ong gio bang mat bch thep goc) :

7.3.1 Ket noi ong gio bang mat bch thep goc

- nh v va tien hanh ghep noi.- Moi ghep ong gio c dan len 1 lp joint (self adhesive elastomeric foam

gasket tape) day 2-4 mm.

- 4 goc ong gio c bat chat bi 4 bulon va xt silicon 4 goc.

7.3.2 Ket noi ong gio bang mat bch dang TDC va TDF

- nh v va tien hanh ghep noi.

- Moi ghep ong gio c dan len 1 lp joint (self adhesive elastomeric foam



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- Dung nep TDC va TDF cai 2 mat bch lai vi nhau, khoang cach gia 2 nep

la 150mm

7.3.3 Ket noi ong gio bang mat bch bang dang nep C.- nh v va tien hanh ghep noi

- Dung nep C (dai tng ng vi 4 canh cua ong gio) ghep 2 au ong gio laivi nhau, sau o xt Silicon xung quanh nep C.

7.3.4 Ket noi ong gio bang mat bch bang dang nep C.- nh v va tien hanh ghep noi.

- Dung mang song ket noi 2 au ong lai vi nhau.

- Khoan lo rut rive gia 2 au ong vi mang song.

- Xt silicon xung quanh mang song.

7.4. Ket noi ong gio vi noi mem (flexible joint) :


- Cat ton day 0.6mm lam nep 30mm x 0.6mm co chieu dai ng vi kch thc

chu vi cua ong gio can ket noi.

- Khoan lo rut ri ve (rivet) gia nep, ong noi mem va ong gio.

- Xt silicon xung quanh.

7.5. Ket noi ong gio mem vi hop mieng gio


- Ong gio mem ket noi hop mieng gio c bang nep 20mm x 0.6mm co

chieu dai ng vi kch thc chu vi ong gio mem.

-

Siet chat ai oc e nep ep chat ong gio mem vao thanh hop gio.

7.6. Ket noi ong gio vi van ieu chnh lu lng ,van ngan la, van 1 chieu:





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7.7. Ket noi ong gio vi phu kien co, giam cap (Tng t nh ket noi ong

gio).



gasket tape) day 2-4 mm.- 4 goc ong gio c bat chat bi 4 bulon va xt silicon 4 goc.

7.8. Lap mai hat (louver) va hop gom gio (plenum box) vi tng :

- Louver c bat vao be mat ngoai tri cua tng :

+ Lay dau 4 goc cua louver ong tacke nha.

+ Bat louver vao tng bang vt xoay.

+ Xt silicon xung quanh louver.

- Plenum box c bat vao mat trong cua tng :

+ Plenum box a len gia va lo opening cua tng.

+ Gia plenum box va tng gi bang ton L 30x25x1mm.

+ Ton L vi tng khoan ong tacke nha va bat vt xoay.

+ Phan ton L vi plenum box khoan lo rut ri ve.

+ Xung quanh ton L xt silicon.

7.9.Ket noi ca gio vi ong gio :

+ Lay dau 4 goc cua mieng gio.

+ Khoan va ong tac ke sau o lap ty vao.

+ Ket noi gia ca gio va ong gio bang ong noi mem.

+

Dung day kem siet chat phan tiep ong mem vi ong gio.Sau o dungbang keo bac dan lai iem tiep xuc.

7.10.Hnh ve :

7.10.1

Hnh 1 (Bao on ong gio)

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7.10.2

Hnh 3 . Noi ong gio vi noi mem

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Hnh 4 ( Noi ong gio mem vi ca gio va VD )

Hnh 5. Noi ong gio bang mat bch thep goc

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Hnh 6. Gia treo ong gio

Kieu 1: Ty ren suot noi gian tiep vi san be tong

7.11. Th x ong gio.

Phng phap th x ng ong gio ap dung theo tieu chuan DW/ 143( Xem tieu chuan nh

kem): Dung nylon bt kn cac au ch cua ong gio, phan ong gio co bao on phai cha lai cac

mat bch (moi noi ong) e bao on sau khi th x, con phan than ong bao on trc roi lap at

ng ong tng oi hoan chnh e th x.

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BIEN PHAP LAP AT HE IEN (MANG IEN, TU IEN, DAY IEN)


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2. S o cong viec lap at he ien:


a. Qui nh chung:

1. Mau cap:

o Mau cac pha dan thong thng: o , xanh , vang.

o Mau cho day trung tn: en.

o Mau cho day tiep a an toan : xanh/vang,hoac co the dung xanh la.2. Day cap ien phai c sap xep, anh dau theo tuyen ro rang de bao tr.

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b. Qui trnh lap at :

- anh dau bang mc phat quang hoac mc co mau sac tng phan vi tng,tran, san nha.

- Lap at he thong gia cho he ng dan cap.

- Lap at he thong ng dan cap. Can chnh theo cao o va co nh chac chan.Kiem tra va lam ve sinh ben trong he ng dan cap e chac chan rang bemat keo cap va day ien la trn nhan. Viec lap at cac co khuy, nga re, giamcap cua he thong khay cap, thang cap, mang cap phai tuan thu qui nh ve banknh cong toi thieu e viec keo cap va day ien c de dang.

- oi vi he thong dan day ien bang ong uPVC, can phai s dung keo dan cac moi ghep noi khi chon trong san be-tong hoac at am trong tng. Cac co,khuy phai co goc uon nho hn 45 o, trong trng hp can phai at goc uonln hn, can phai uon ong nhieu iem khac nhau tren ong. Tong so lng

cac goc uon phai nho hn 3 goc 90 o gia 2 iem ra day.- Tien hanh keo day va cap theo tng phu tai va sap xep co th t trong mang

cap, khay cap, tranh trng hp chong cheo hoac xoan vao nhau.

c. Quy cach lap at day cap ien:

Lap at tren thang cap : (Tham khao hnh ben di)

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Lap at trong mang dan ien.

Lap at trong ong ien (noi hoac am)

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Sau khi lap at day cap:

- Nhat thiet phai o tr so ien tr cach ien va tnh thong mach cua day va captrc khi thc hien viec au noi day vao thiet b va tu ien.

- Ve sinh va ay kn he thong ng dan cap cac ni co ngi xam nhap va cactruc ng xuyen tang.

Lap tu ien:

- anh dau v tr lap at tu ien va cac ng cap vao/ ra tu ien tren mat bangbang mc phat quang hoac loai mc co mau sac tng phan vi mau sac cuatng va san nha.

- o be mong cho cac tu ien at tren san vi kch thc thch hp.

- Thc hien viec khoan va lap at he thong gia cho he thong ng dan capvao / ra tu.

- Lap at he thong ng dan cap va can chnh theo cao o qui nh trong banve.

- Kiem tra s phu hp theo catalogue va n at hang cua tu ien khi no cvan chuyen en cong trng.

- Van chuyen tu ien en ni lap at bang phng phap thch hp:

- oi vi tu ien at tren san, dung cac phng tien nh con lan, thanh ray, xecan cau, xe nang, ti keo, con oi, ...

- oi vi tu ien loai treo tng, thng la co kch thc nho va trong lng be

nen co the dung xe nang, gia , sc ngi, ... e lap at vao v tr.- Lap at co nh tu va ket noi he ng dan cap vi tu.

- Lam ve sinh ben trong va ben ngoai tu.

- o tr so ien tr cach ien va tnh thong mach cua cac ng day ien vacap ien trc khi tien hanh au noi vao tu. Ghi lai cac tr so o c vao cacbieu mau a c ban hanh.

- Thc hien viec au noi cap va day ien.

Sau khi lap at:

- Dung may hut bui, may thoi kh nen lam ve sinh tu. Kiem tra lai mot lan na cacmoi noi ve o cng chac cua bu-lon, cach ien cua au cap, mau sac va bang soanh dau cap.

- Bao che tu ien chong bui bam va va cham c hoc.4. au noi vi tu ien va thiet b:

a. Kiem tra day:

- Kiem tra o cach ien cua day.- Kiem tra thong mach.

b. Kiem tra tu ien va thiet b:45 / 69


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- Kiem tra cach ien cua tu- Kiem tra cach ien cua thiet b.

c. a cap vao tu va thiet b:

- Sau khi kiem tra,cat cap va u e au noi vao v tr- Dung chup au noi cap co mau phu hp luon vao cap e anh dau.- Dung au noi cap phu hp e au vao cap(vi cap co tiet dien ln hn hoac

bang 50mm2 th phai dung kiem bam thuy lc.

- Sau khi xong cong tac anh dau ,bam au noi cap au vao tu va thiet b ,phaibao am lc xiet au au noi tiep xuc tot va chac chan vao thanh dan iencua tu hoac thiet b.

d. Sau khi au noi:

- Kiem tra lai cong viec au noi khong xay ra nham lan gia cac pha.IV. HIEU CHNH O HE THONG HKK THONG GIO CAP NHIET

HIEU CHNH O AC HE THONG

S o cong viec hieu chnh-o ac.

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1. Gii thieu :

- Muc tieu cua viec a he thong vao hoat ong nham am bao viec lap at cacthiet b hoat ong ung theo cac yeu cau cua ac iem ky thuat thiet ke.

- Hoat ong he thong c khang nh nh la bc tiep theo cua viec lap at tgiai oan hoan tat cac thiet b en cac viec khac thoa man cac yeu cau ac biet.Viec nay bao gom ca viec cai at hoat ong va can bang he thong.

- Trong khi o cong viec kiem tra khi chay th gom viec anh gia hieu qua hoatong cua mot he thong ang c a vao hoat ong.

- Can thiet phai ghi nhan lai ket qua cua tat ca cac bc kiem tra va o ac. Quatrnh a vao hoat ong co the b tam ngng, can phai ghi nhan ay u tnh tranghoat ong luc o. ieu rat quan trong la can thiet phai cung cap ho s trong quatrnh chay th nh la mot phan cua thong tin ban giao.

- Viec a vao hoat ong va kiem tra chay th at hieu qua can mot thu tuc clap ke hoach mot cach ky lng va co he thong va thu tuc nay phai do oi ngu

gioi va co kinh nghiem thc hien; phai lap lch trnh tat ca cac hoat ong gom cas o to chc, cac thiet b o c can chnh va viec ieu hanh cac cong viec thcte. Cac cong viec chuan b gom ca cong viec lap ke hoach va len lch tat ca cacthu tuc, viec thu thap cac so lieu can thiet, viec xem xet cac so lieu c chon,nghien cu he thong se hoat ong, chuan b va thc hien s bo cac kiem tra congtrng.

- Khong co mot thu tuc chay th nao c ap dung cho tat ca cac he thong khacnhau. Tuy nhien co mot ieu c thong nhat la he thong gio c thc hien autien, sau o en he thong nc va cuoi cung la he thong gas.

2. Thu tuc trc tien:2.1. Nhan va nghien cu cac ban ve thiet ke, cac ac tnh ky thuat; phai hieu ro

tng tan y o thiet ke

2.2. Nhan cac ban ve trien khai chi tiet c chap thuan

2.3. So sanh cac he thong thiet ke vi he thong lap at

2.4. Kiem tra thc te tai cong trng e xem toa nha va he thong co c hoan tattheo ung kien truc, c, ien va ap ng chc nang can chnh c hay khong.

2.5. Chuan b ban bao cao kiem tra khi chay th

2.6. e de dang trong viec bao cao, nen chuan b ban ve s o nguyen ly he thong,ban ve hoan cong mat bang bo tr ng ong gio, ong nc.

3. Thiet b o :Nhng thiet b toi thieu can phai can phai co cho qua trnh kiem tra th nghiem:

3.1. Dung cu o ap suat (day thang o nho c hieu chuan khong di 1Pa)

3.2. Dung cu o ap suat loai vach nghieng va ng co thang o t 0-2500 Pa3.3. Ong Pitot co chieu dai theo yeu cau

3.4. Dung cu o toc o quay

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3.5. Dung cu o dong ien va ien ap

3.6. Dung cu o toc o gio loai chong chong

3.7. Dung cu o toc o gio loai cam bien nhiet

3.8. Dung cu o lu lng co chup gom gio

3.9. Dung cu o nhiet o loai tron va loai que

3.10. Dung cu o cach ien

3.11. Dung cu o ap suat nc

3.12. Dung cu o can chnh lu lng nc

3.13. Thiet b o tieng on

Tat ca cac dung cu phai c hieu chuan trc khi s dung (xem danh sach thiet bo)

4. Qui trnh th nghiem :Cong tac kiem tra th nghiem phai bien soan va thc hien bao gom :

- Qui trnh can chnh he thong phan phoi gio

- Qui trnh can chnh he phan phoi nc

- Qui trnh th nghiem AHU

- Qui trnh th nghiem FCU

- Qui trnh th nghiem may cap lanh

- Qui trnh th nghiem may cap nhiet- Qui trnh th nghiem bm nc

- Qui trnh th nghiem Quat thong gio

5. Chap thuan va ban giao :Giai oan cuoi trong toan bo tien trnh la s chap thuan va tiep nhan s hu he thongcua ngi s dung.

a. He ong gio

Cac bc kiem tra

- Kiem tra he thong

+ Kiem tra tnh trang he thong cac au noi vao dan lanh, cac bo loc, cacvan ieu chnh gio, cac van chong chay lan v..v co lap at ung cach,ung v tr can thiet va ung chc nang khong

+

Chuan b cac ban bao cao qua trnh kiem tra th nghiem cho ca quat vacac van chong chay lan, mieng gio, thu thap cac thong so va thu tuckiem tra th nghiem c nha san xuat khuyen cao thc hien

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+ Quyet nh v tr tot nhat tren ong gio chnh va ong gio nhanh e o

chnh xac nhat

+ a tat ca cac van chnh gio ve v tr m toan bo

+ Kiem tra cac thiet b c va ien

+ Kiem tra quat: o sach, o chac chan cua cac chot khoa, canh quat bo

truyen, e quat, hop che chan, bo canh chnh gio vao+ Kiem tra ien: o sach, bien phap cach ien cuc bo, o chac chan cua

cac moi noi, tai cau ch, mc qua tai, day ong lc va day ieu khien,o cach ien cua motor

- Khi ong: Kiem tra trong luc kch hoat bo khi ong ong c xem:

+ Chuyen ong quay cua quat

+ o on va o rung ong

+ Dong khi ong ong c e ieu chnh thi gian chuyen tiep

+ Dong hoat ong ong c tat ca cac pha

+ o qua nhiet va net la ong c

+ o qua nhiet cac o , s ro r chat boi trn

- Hoat ong:

+ Ban au khi ong quat tai thap, ch khi at yeu cau mi khi ongquat che o tai bnh thng va tiep tuc cho en khi quat chac chanhoat ong eu; kiem tra can bang ong

Can chnh gio phng phap ty le :

- Kiem tra ot xuat cac mieng gio xa va gan quat nhat e xem s mat can bangcua he thong

- Neu iem xa nhat co gio rat t va iem gan nhat co gio rat nhieu th ieuchnh cac van ong chnh, ong nhanh e can bang hp ly hn.

- Bat au can chnh that s cho ng ong dai nhat, co tr lc ln nhat, oc trso 2 iem xa nhat va can theo ty le thiet ke

- oc tr so iem xa nhat tren ng dai nhat va quyet nh phan tram thiet ke.Phan tram thiet ke la so oc c that s chia cho so yeu cau. V du neu occ 8 m/s va theo yeu cau la 10 m/s th ta c 80% thiet ke. Neu iem xanhat thap hn 60% thiet ke th ieu chnh van gio tren ong nhanh e at cen 70% hay 80% tr so thiet ke. Vao luc nay khong c ung ti van ieuchnh tren mieng gio, gi nguyen v tr m 100%.

- oc tr so iem xa th hai. Neu tr so nay co ty le phan tram thiet ke cao hnth ong bt van gio e giam xuong mot na o chenh lech ve phan tram thietke cua 2 iem.

V du: neu iem xa nhat la 70% thiet ke va iem xa th hai la 90% thiet ke,giam iem th hai xuong en 80% va xem iem xa th nhat co tang len 80%khong. Neu iem th hai thap hn iem th nhat thay v giam iem hai th tagiam iem th nhat e ca hai cung mot phan tram thiet ke.

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- Sau khi ca hai iem xa nhat a co cung mot phan tram thiet ke th i tiep

iem th ba. oc va ieu chnh phan tram iem th ba sai biet t 05% so vihai iem trc.

- Chia o chenh lech phan tram gia ba iem lam ba phan. Giam 2/3 phan tramchenh lech gia iem th ba va iem th nhat. Y nh ay la e iem th bacon lai 1/3 phan tram chenh lech va a 2/3 phan tram chenh lech ve hai

iem trc.- V vu:Neu iem III la 95% thiet ke, chenh lech gia iem nay va hai iem

trc (eu la 80%) la 15%. Giam iem ba 2/3 phan tram chenh lech hay 10%,thay oi t 95% en 85%. 10% giam i se t chia cho 2 iem trc do o moiiem se nang len t 80% 85%.

- Kiem tra xem iem hai so vi luc au co thc s tang len khoang 5% khong.Neu khong, hay chnh iem ba lai cho phu hp. iem cuoi khong can phaikiem tra v t no se thay oi tng ng.

-

Thc te la hau het lng khong kh se dch chuyen xuoi chieu nhng mot phannho cung se di chuyen ngc chieu v vay phan tram thay oi se khong hoanthien va co the can phai chnh them na.

+ Sau o i tiep iem xa th t va chnh en khoang 05% sai lech so vicac iem trc. Khi o chia o chenh lech lam 4 va phan phoi mot phangi lai, ba phan cho cac iem trc.

+ Tien trnh thc hien cho cac mieng gio tren cung mot nhanh, can chnhiem sau sai biet cac iem trc 05% bang cach phan phoi ieu chenhlech % gia iem sau va cac iem trc xa hn. Moi lan ch can kiem tra

mot iem a c can trc o, khong can phai kiem tra tat ca cac iemxa hn a c can, ngoai tr trng hp kiem tra ot xuat ngau nhienneu nghi ng.

+ Bay gi chung ta hay xem nh la tat ca mieng gio tren ong nhanh xa nhateu co ty le 90% thiet ke.

+ Sau o hay i tiep nhanh xa th hai va can chnh ung nh cach a lamcho nhanh au tien. Bat au t hai iem xa nhat, can hai iem nay theocung mot phan tram thiet ke. Cac iem i sau can sai lech trong vong05% iem a can ngay trc o.

+ Luc nay xem nh nhanh xa nhat th hai a c 100% thiet ke. Sau ohai nhanh xa nhat co cac mieng gio va c can bang se c can chnhmot lan na e chung co cung mot phan tram thiet ke, cach can chnhung nh a lam cho hai iem xa nhat tren cung mot nhanh. Chia chenhlech phan tram gia hai nhanh lam hai va nhanh xa th hai giam t 100%xuong con 95%. Kiem tra mot mieng gio ien hnh tren nhanh xa nhat kiae xem ty le co tang len 95% hay khong. Neu thay tang ung nh vay,khong can phai kiem tra mot mieng gio nao na bi v chung ta xem nhmoi mieng gio eu c thay oi bang nhau theo thuat ng phan tram

thiet ke.+ Sau khi hai nhanh cuoi a co cung mot phan tram thiet ke, cac mieng gio

tren nhanh xa nhat th ba c can chnh ty le mot lan na cung theocach tren. Sau o toan bo nhanh nay se co o sai biet t 05% so vi

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nhanh xa nhat th hai. Xem xet mot lan na xem co ung ty le nh vaykhong bang cach kiem tra ot xuat mot mieng gio nao o.

+ Tien hanh tiep tuc nhanh th t, th nam,.v..v hng ve pha quat. Canchnh cac mieng gio tren nhanh va toan bo moi nhanh theo mieng gio vanhanh ngay trc o.

+ Sau khi tat ca cac mieng gio va cac nhanh trong he thong a c canchnh theo ty le, chung ta se thay rang chung co the co tr so trung bnhthap hn, bang hoac cao hn tr so thiet ke. Cac tr so nay co the la 120%,110%, 100%, 90%, 80% hoac bat ky so nao nam trong khoang hoac ngayca thap hn cac tr so nay. Bat c co ieu g chang na cung khong saoca. Van e la nh vay, tat ca cac mieng gio va cac nhanh eu tng xngnhau, neu lu lng quat co can phai tang hay giam th cung khong lammat i s can bang he thong. Cac mieng gio va cac nhanh se tang hoacgiam nhanh tng xng theo quat. Ch can kiem tra ot xuat e chngthc rang he thong khong b mat can bang.

- Bc can bang cuoi cung mot he thong co ap suat thap phuc vu ch mot khuvc la can bang quat. oc lai tr so lu lng, dong ien va cot ap tnh, sosanh lu lng quat vi cot ap lu lng cua tat ca cac mieng ra, ieu chnhquat tang hoac giam theo thu tuc chung.

- Bc cuoi cung cua thu tuc can bang he thong gio la hoan tat cac ban kiemtra th nghiem va ghi u tat ca cac con so sau cung trong ban bao cao.

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A. Ty so oc au tien la 70% -90%. Giam iem 2 xuong con80% iem 1 se nang len 80%

B. Tr so oc la 95% giam en85%, iem 1,2 se nang lenthanh 85%

C. oc lan au la 105% giam en90% iem 1,2,3 se nang lenthanh 85%

Phng phap can bang theo ty le bat au bang 2 mieng gio cap cuoi cung tren ng dai nhat va thc hien theo cung phantram thiet ke. Chnh moi mieng gio tiep t 0-5% cua mieng gio trc o tren nhanh o. Theo cung cac tien trnh tren moinhanh va can cac nhanhvi nhau cho en khi ket thuc

13 14 15 16

9

5

1

10 11 12

6 78

2 3 4

I. Can chnh theo ty le gia cacmieng gio ra, sau o can ty lenhanh nay vi nhanh trc o

J. Ty le trung bnh cua nhanh la97% khong chnh

G. Tat ca cac iem tren nhanh eu ccan bang theo ty le.

F. Tr so trung bnh ban au la 100% chnh egiam xuong con 95%, nhanh 1 se tang len

en 95%. Cung vi nhanh 1 tang len en

100% khi nhanh 3 giam xuong con 100%

E. Tat ca cac iem tren nhanh eu ccan bang theo ty le.

D. Tr so trung bnh ban au la 90%, tanglen en 95% khi nhanh 2 giam con 95%.Tang tiep len en 100% (cung vi nhanh2) khi nhanh 3 giam xuong con 100%.

H. Ty le trung bnh bat au cua nhanhla 110%, giam con 100%, nhanh1,2 se tang len en 100%

K. Tang hoac giam lu lng quat theo yeucau; kiem tra ot xuat

RA

OA AIR

MIXED

b. He ong nc cap lanh va cap nhiet :

1. Tong Quan :

Cac he thong nc nen c can bang theo lu lng o c trc tiep moi v tr hn la theo tr so sut mat ap hay nhiet o oc c ma cac tr so

nay co the lan lon s khong chnh xac v nhieu ly do khac nhau.

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Noi chung, viec can bang he thong nc c thanh cong do cac tr so oclu lng va ap suat va c minh chng bi tong nguon trao oi nhiet sdung cac tr so oc nhiet o nc va gio.

1.1. Hai quan iem ve viec can nc :

- Mot quan iem xem xet he thong nc nh la mot may o nc o moimay cuoi nguon c cung cap mot lu lng chnh xac theo thiet ke.

- Quan iem khac xem he thong nc nh la mot may trao oi nhiet, omoi iem cuoi nguon ch c cung cap lu lng u e trao oi nhiet.

- Trong viec can gio yeu cau lng gio chnh xac hn bi v gio la thanhphan chnh yeu trong viec lam mat hay si am. Viec giam lu lng giogay ra kha nang giam tai tuyen tnh trc tiep.

- Trong khi o lu lng nc lai khong co quan he tuyen tnh vi tai nhietthiet b, lu lng co the thay oi ma van at c yeu cau tai nhiet. V ly

do nay ma oi khi viec can bang nc khong can chnh xac nh can gio cung mot mc o can bang.

1.2. Ba phng phap xac nh lu lng:

- oc trc tiep lu lng thc s bang cach dung dung cu o lu lng ncnh ong pi-to, dung cu o nc qua mieng tron v.v

- Xac nh gian tiep bang cach oc o chenh ap qua cac thiet b trong hethong nh may lam lanh nc, van, dan v.v va ket hp vi so lieu tng

ng do nha san xuat cung cap.- Xac nh gian tiep bang cach o o chenh nhiet o cua chat long qua thiet

b va ket hp vi so lieu tng ng cua nha san xuat.

2. Qui trnh can chnh nc:

- Chuan b cac ban bao cao viec kiem tra th nghiem; cac ban d lieu thietb: bm, may lam lanh nc v.v, cac bang nay liet ke lu lng nc, omat ap, o chenh nhiet o, va moi so lieu c yeu cau. Liet ke lu lngva ap suat cac tram (iem) o.

- Kiem tra o sach he thong.

- Kiem tra tnh trang he thong: au noi vao dan lanh, bo loc, van ieu khien,khp noi van ieu khien v.v Khang nh la he thong a c kiem tra aplc, nguon nc lien tuc a c noi vao, he thong x ly nc a co sanneu c ch ro.

- Tien hanh xuc ra he thong:

+ Chia he thong thanh cac oan co the t xa nc c e ket qua xucra at c toi a.

+ Cach ly cac bo phan ac biet b anh hng do bam ban nh bm, cacdan va cac ong nho.

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- Cap ay nc vao he thong. Kiem tra mc nc trong bnh gian n co

mc phu hp cha. Xa kh. Neu khong kh va cac kh khac khong c xahet khoi he thong ong, chung co the ton ong trong cac thiet b lam tacnghen luon nc va co the gay on do khong kh trong ong.

- Kiem tra cac van ieu khien ang hoat ong va cai at theo lu lng thietke, neu co s dung van t ong 3 nga, cai at tat ca cac van coc tren ng

vong khong qua thiet b e gii han nc en 90% lu lng thiet keM 100% cac van can bang hay cai at trc.

- Kiem tra thiet b ien va c:

Kiem tra bm: o sach, chieu lu lng, o chat cua cac chot, canh bm, botruyen, e, hop che chan, khp noi ong, chat boi trn, lam mat o .

Thiet b ien: o sach, bien phap cach ien cuc bo, o chac chan cua cacmoi noi, tai cau ch, day nguon va day ieu khien, o cach ien cua ongc.

- Khi ong:

Kiem tra trong khi kch hoat bo khi ong ong c:

+ Chuyen ong quay cua bm.

+ o on va rung ong.

+ Dong khi ong ong c e ieu chnh thi gian chuyen tiep.

+ Dong khi ong ong c tren moi pha.

+ o qua nhiet va net la ong c.

+ o qua nhiet cac o , s ro r chat boi trn.

+ Lu lng nc lam mat o .

- Hoat ong:

+ Bat au hoat ong bm tai thap, sau o ch khi at yeu cau mi mt t van chan au ay cho en khi dong ong c at en hoac la tr sothiet ke hoac tr so dong ay tai ong c neu tr so nao nho hn.

+ Kiem tra ap suat bm.

+ ieu chnh van au ay e lu lng c xac nh s bo t ng actnh bm nam trong khoang t 100%110% tr so thiet ke.

+ Hoat ong bm che o tai bnh thng cho en khi bm chac chanhoat ong eu. Kiem tra can bang ong.

- Hieu suat bm:

+ ong t t van au ay va oc cac tr so ap suat.

+ Neu co c mot v tr at tren ng ay o tong lu lng bm thoc tr so lu lng va so sanh vi cac so o ap suat va ng ac tnh.

- Thu tuc can nc vao cac thiet b cuoi nguon:+ Neu v tr oc lu lng va ap suat at canh thiet b trung tam nh may

lam lanh nc, lo hi v.vhoac trong mach gan cac thiet b cuoi

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nguon th oc cac tr so o lu lng hoac ap suat ban au cua thiet btrung tam va so sanh vi tr so thiet ke va tr so trong catalog, ghi chulu lng nao ln, lu lng nao nho.

+ Xac nh phan tram thiet ke thiet b cuoi nguon bang cach chia cholu lng hoac ap suat thc te. Neu thiet b nao co tr so thap makhong c m van hoan toan th m 100%. ong bt van cac thiet

b cuoi nguon lan lt tng cai mot bat au t thiet b co tr so ln nhaten thiet b co tr so nho nhat cho en khi tat ca eu c can bangtheo ty le. Co the yeu cau en 3 lan chnh.

+ Sau khi co c lu lng thch hp trong moi thiet b cuoi nguon, xacnh hieu suat thiet b bang cach oc nhiet o nc vao va ra, nhiet ogio vao va ra, va lu lng gio. Tnh tong truyen nhiet theo lu lnggio, lu lng nc va o chenh nhiet o nc.

+ Sau khi viec can bang hoan chnh, oc va ghi nhan so o dong, ochenh ap suat qua bm, o mat ap qua bo loc.

Bc cuoi cung trong thu tuc can bang nc la hoan tat cac ban bao cao vaghi ay u cac con so sau cung

s - 1 c a l

B Y P A S S

4 . 5 l / s

3 . 8 l / s

6 . 8 l / s

6 . 8 l / s

8 . 3 l / s

C H I L L E R

H E A T P U M P

B O N C H A

T H I E T B OL N G L N G

s - 2 c a l

s - 3 c a l

s - 4 c a l

s - 5 c a l

V A NC H A N

B O L O C B M V A N 1C H I E U

V A N C A NB A N G

T H I E T B O L U L N G

V A N I E U K H I E N 3 N G A

V A N I E U K H I E N 2 N G A

A U N O I T H I E T B O

T H I E T B O L U L N GC O G A N V A N C A N B A N G

H N H 4 . H E T H O N G O N G N C L A N H V A O N G N C N O N G

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c. Can chnh AHU :

1. Kiem tra s bo

- Phan ve sinh ben ngoai

- o an toan canh quat (chot, bulon ham v.v...)

- Kiem tra quat bang cach dung tay quay th.- Chieu gio ung

- Hieu chnh o can cua day cu-roa, can chnh pu-li

- Cai chan pu-li a lap

- Ca tham dung e o van toc

- Tra dau m cho o theo cac hng dan cua nha san xuat

- Kiem tra ve sinh he thong :

+ Phong cha AHU phai sach

+ Cac iem xa phai sach.

+ Kiem tra Coil lanh, Coil nong, DX coil co sach ,va co b h hai gkhong.

+ Kiem tra mach gas phai hoan thanh va c th x,nap gas cho vieckhi ong

+ Kiem tra mc dau may nen

- Kiem tra Bo loc xem co c lap chnh xac khong

2. Kiem tra th nghiem:

- Lu ho s cac d lieu ve bang ten ve quat, motor, vo AHU.

- Kiem tra va xac nhan rang ien tr si dau a hoat ong toi thieu 24 gitrc khi van hanh

- Kiem tra va lu ho s ve so vong quay / phut (RPM) e xac nhan toc oquat

- o va lu ho s ch so ampere hoat ong va ch so ien ap.- Chnh he thong trang thai gio ti thap nhat, sau o thc hien o van toc

gio qua tiet dien bang ong pitot cho cac ong gio chnh, chnh toc o quat eat tong lu lng gio theo thiet ke.

- o va lu ho s tr ap tnh cua he ong gio va iem giam ap suat tnh quacoil, loc v.v...trong hoac ngoai phan vo AHU trong he ong gio.

- o va lu ho s ap suat hut va ap suat thoi cua quat da tren ap suat nhmc can thiet, ca ap suat tnh va ap suat tong.

- Chay th he thong trang thai gio ti toi a. Neu ong c qua tai hoac lulng gio vt qua mc, ieu chnh toc o vong/phut (RPM) cho phu hp.

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- o va lu ho s nhiet o gio cap, gio hoi, gio ti khi he thong ang at

trang thai gio ti thap nhat.

- Kiem tra cac cong tac bao ve ap suat gas ,ap cao ,ap thap va ghi lai gia trchnh nh

- Ghi lai ap suat dau,ap suat hut,ap suat ay

d. Can chnh FCU :- Phan ve sinh ben ngoai

- o an toan canh quat (chot, bulon ham v.v...)

- Kiem tra quat bang cach dung tay quay th.

- Chieu gio ung

- Hieu chnh o can cua day cu-roa, can chnh pu-li

- Cai chan pu-li a lap

- Ca tham dung e o van toc

- Tra dau m cho o theo cac hng dan cua nha san xuat

- Kiem tra ve sinh he thong :

+ Phong cha FCU phai sach

+ Cac iem xa phai sach.

+ Kiem tra Coil lanh, Coil nong, co sach va h hong g khong.

- Kiem tra Bo loc xem co c lap chnh xac khong

Kiem tra th nghiem:

- Lu ho s cac d lieu ve bang ten ve quat, motor, vo FCU

- Kiem tra va lu ho s ve so vong quay / phut (RPM) e xac nhan toc o quat.

- o va lu ho s ch so ampere hoat ong va ch so ien ap.

- Chnh he thong trang thai gio ti thap nhat, sau o thc hien o van toc gio

qua tiet dien bang ong pitot cho cac ong gio chnh, chnh toc o quat e at tonglu lng gio theo thiet ke.

- o va lu ho s tr ap tnh cua he ong gio va iem giam ap suat tnh qua coil,loc v.v...trong hoac ngoai phan vo FCU trong he ong gio.

- o va lu ho s ap suat hut va ap suat thoi cua quat da tren ap suat nh mccan thiet, ca ap suat tnh va ap suat tong.

- Chay th he thong trang thai gio ti toi a. Neu ong c qua tai hoac lulng gio vt qua mc, ieu chnh toc o vong/phut (RPM) cho phu hp.

- o va lu ho s nhiet o gio cap, gio hoi, gio ti khi he thong ang at trangthai gio ti thap nhat.

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Kiem tra s bo:

- O ong c thng xuyen c tra m.

- Loai bo cac vat la lam nghen dong khay ng nc hoac ng nc xa.

- Xem xet kiem tra cac boc cach nhiet co b h hong hoac thay the neu thay canthiet.

- Kiem tra xem quat hoat ong co ung khong.- Phai kiem tra chac chan la nc ngng tu phai c xa ra. Neu can thiet, ieu

chnh cao o e tien cho viec xa nc.

- Kiem tra viec thi cong ong gio hoac ong nc e xac nh va sa cha neu brung ong.

Chay th:

- Kiem tra viec noi day ben trong phai chat.

- Nguon ien phai phu hp vi ch nh tren nhan san pham.

- Cac nap ay, tam chan, bang ien phai ung v tr.

- Bao am la cac van va ca chnh gio phai ang m.

- o nhiet o bau kho/bau t cua gio ra va vao dan trao oi nhiet ( 0C), lu lnggio cap (L/S), Nhiet o nc vao / ra ( 0C ), lu lng nc (L/S) va so sanh vicac thong so a qui nh

e.

Can chnh may cap lanh

Tong quat :

- Kiem tra xem may cap lanh co the nhung t do tren lo xo, neu co

- Cac iem o nhiet o va ap suat a c lap cho ca 2 dan trao oi nc lanh taing nc i, va ng nc hoi trong moi bo may cap lanh, mach nc chungva mach nc hoi cho ng ong dan en cac mach nc s cap va th cap taihien trng.

-

Cac cong viec kiem tra th nghiem cho bm c mo ta phan th nghiembm lien ket vi chiller.

Nc :

- Viec can nc lanh gia cac coil lanh a c hoan tat.

- Lu lng nc lanh qua cac dan trao oi nhiet o cua chiller phai at t 100-110% gia tr thiet ke, c oc bang cach xac nh o sut ap hoac s dung thietb o lu lng.

Lu y: Cac bm co lien quan phai ang hoat ong- Lap lai cac bc tren e kiem tra lu lng nc dan ngng tu

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ien :

- C cau ch hoac cau dao cua chiller phai ung theo ban ve thi cong.

- Kiem tra cach noi day cua ong c e hoat ong ung ien the nh mc va toco cua ong c.

- Bao ve qua tai cua mo-t c chnh theo qui nh tren nhan san pham. Thamchieu hng dan cua nha che tao.

Chay th:

1. Th nc va th ro r- Th ap lc va th ro r

- Xa nc lan au

- Nap dau. Cho bo phan si dau hoat ong.

- Xuc ra bang ni t kho, va xa lan cuoi.

Lan rut chan khong sau cung mc 0.2mmHg (200 microns) c duy trtrong 24 gi va co s chng nhan cua ai dien khach hang.

Bc nay c thc hien theo tieu chuan nganh va theo hng dan cua nhache tao. Khong c kiem tra o cach ien oi vi may nen mo-t loai kntrong luc hut chan khong.

2. Nap moi chat lanh cho chiller.3. Kiem tra lai o cach ien vi at cua mo-t (bang Megger)4. Kiem tra chay kho.

4.1. ieu chnh cong tac lu lng.

- Muc ch la tat chiller khi lng nc lanh va quat giai nhiet giam. oivi cong tac an toan can phai reset bang tay, hay cho nc qua chillertrc khi th ngat. Cong tac lu lng c chnh nh tuy thuoc vaocac iem ngat cua cong tac an toan va co the c xac nh bang conso th nghiem gan ung nhat mot khi cac chiller hoat ong. Tai thiiem nay, tr so ngat tng ng vi 60% lu lng thiet ke th coinh la hp ly, da vao vao ban hng dan cua nha che tao.

- Bao am rang chieu dai cua ong nhung phai ung theo c ong.

- Noi chuong bao ong thong qua cong tac thng ong cua cong taclu lng.

- S dung dung cu o lu lng e o lu lng nc (annular, orificeplate). Neu khong co san thiet b o lu lng, iem sut ap i ngangqua cac dan trao oi nhiet cua chiller a c nha che tao chngnhan dung nh la phng cach sau cung.

- ieu chnh cho cong tac lu lng se nha khi at 60% lu lngthiet ke.

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Thc hien cac bc tng t e kiem tra may nen. Bo phan cam bien lulng loai chenh lech ap suat.

Thao day dan t bo khi ong dan en mo t may nen trc khi thc hiencac bc kiem tra tiep theo.

4.2. Chnh nh thermostat nhiet o nc thap.

Dung nc a hoac moi chat lanh. Chnh cho themostat nha sau khi nhiet oat 3.30 C trong vong 5 giay, hoac nhiet o cao hn theo yeu cau cua nha chetao.

4.3. Chnh nh thermostat nhiet o thap oi vi moi chat lanh. Cac bctng t nh muc

4.4. Chnh nhiet o khoang 00C da vao s chap thuan cua nha che tao.

4.5. Cac bo phan bao ve : ong bo phan khi ong cua may nen. Ngat bophan khi ong se nha ra do tac ong cua cac bo phan bao ve sau:

- Cong tac LP/HP (noi rieng bnh cha moi chat lanh vi cong tac LP/HPthong lo gan ong ho ap suat)

- Ap suat dau (nha bo phan khi ong trong khoan thi gian ngng theochnh nh)

- Cac cong tac lu lng ( cong tac tiet lu nc)

- Thiet b thi gian gii han so lan khi ong.

- Bo phan bao ve qua tai cua mo t may nen.

(nhan nut test van tr lai che o Auto sau khi xong qua trnh chay

th nghiem. Cac chiller loai ln can phai injection test). Trong khichay th, kiem tra s hoat ong cua en bao hieu chay va s co.

- Bo bao ve qua nhiet cua mo t may nen (thermistor).

(thao ri bo cam bien tai mo-un TP)

- Thermostat nhiet o nc thap va moi chat lanh.

4.6. Kiem tra lai cac khoa lien ong gia chiller va cac thiet b ben ngoainh :

- Bo ieu khien Chiller noi tiep.

- Van nc by-pass cua Chiller.

- Bo khi ong cac bm.

- Bo ieu khien cung cap lanh (td : sau khoang thi gian chay si)

5. Kiem tra qua trnh hoat ong :5.1. Nhiet o dau

Cho hoat ong bo si dau trong vong 4-6 gi trc khi chay may nen.Tham khao hng dan cua nha che tao ve van e nhiet o dau co the

chap nhan c oi vi cac chiller co may nen ly tam.5.2. Kiem tra hng quay mo-t.

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5.3. Lap thiet b oc lu lng nc tren cac ng ong nc lanh va nc

giai nhiet; ieu chnh theo gia tr thiet ke neu can.

5.4. Khi ong chiller va lu ho s cac thong so hoat ong nh :

- Ch so cap tai (stage).

- Ch so ien the dong chay(A) dung ong ho o ampe kem a c

hieu chnh.- Ap suat hut

- Ap suat ay

- Ap suat dau

- nhiet o nc lanh vao

- nhiet o nc lanh ra

- Nhiet o moi trng

- Nhiet o gio giai nhiet ra- Lu lng nc lanh. (l/s)

5.5. T ho s hoat ong, xac nh iem chnh nh nhiet o cua bo ieukhien va day can chnh theo ty le e at nhiet o nc thoat ra theothiet ke khi chiller hoat ong on nh lien tuc (khong tang, giam tai)va khong v nhiet o xuong qua thap. Chnh bo ieu khien iem nay.

5.6. Giam iem chnh nh nhiet o tren bo ieu khien va t t giam nhieto nc ra cho en khi thiet b bao ve nhiet o nc thap cua chillerhoat ong. ieu quan trong la nhiet o nc ra phai c giam sat lientuc bang cach dung 1 nhiet ke ien t a c kiem nh. Lu ho snhiet o nc khi bo bao ve cua chiller hoat ong va ieu chnh e at3.30C neu can thay can.

5.7. Giam ch so qua tai e ngat mo t may nen. Chnh tr lai ch so ienthe bnh thng c qui nh tren nhan san pham sau khi kiem tra thnghiem.

5.8. Gia lap ieu kien ap suat thap, ap suat cao va lu lng thap, kiem tras hoat ong cua cac bo phan bao ve va en bao.

5.9. Kiem tra lai xem thiet b gii han so lan khi ong a c chnh t 4-6 lan khi ong trong mot gi.

5.10.Kiem tra xem mo t co at en toc o nh mc trc khi bo ieu apchuyen sang ien ap nh mc hay khong bang cach chnh r-le thigian, ong thi cung khong lu thi gian giam ap dai hn mc canthiet.

5.11.Kiem tra lai s hoat ong cua chu ky rut ga, neu co.

5.12.Bao am rang chiller khi ong hoan toan che o khong tai.

Chu y : Viec th nghiem va chay th may lam lanh nc can phoi hp chat chevi chuyen gia ky thuat cua nha cung cap

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f. Can chnh may cap nhiet:

Tong quat :- Kiem tra xem chiller co the nhung t do tren lo xo, neu co

- Cac iem o nhiet o va ap suat a c lap cho ca 2 dan trao oi nc nong vanc lanh tai ng nc i, va ng nc hoi trong moi bo chiller, mach ncchung va mach nc hoi cho ng ong dan en cac coil lanh tai hien trng.

- Kiem tra cac quat giai nhiet (xem qui trnh kiem tra th nghiem quat).

- Cac cong viec kiem tra th nghiem cho bm c mo ta phan th nghiembm lien ket vi chiller.

Nc :

- Viec can nc lanh(mach s cap),nc nong gia cac coil nong a c hoantat.

- Lu lng nc nong,nc lanh qua cac dan trao oi nhiet o cua Heat pumpphai at t 100-110% gia tr thiet ke, c oc bang cach xac nh o sut aphoac s dung thiet b o lu lng.

Lu y: Cac bm co lien quan phai ang hoat ong

ien :

- C cau ch hoac cau dao cua Heat pump phai ung theo ban ve thi cong.


- Bao ve qua tai cua mo-t c chnh theo qui nh tren nhan san pham. Heatpump dung may nen ly tam co the co sai so cho phep la 8%. Tham chieu hngdan cua nha che tao.

Chay th :

1. Kh nc va th ro r- Th ap lc va th ro r

- Xa nc lan au

- Nap dau. Cho bo phan si dau hoat ong.

- Xuc ra bang ni t kho, va xa lan cuoi.

Lan rut chan khong sau cung mc 0.2mmHg (200 microns) c duy tr trong24 gi va co s chng nhan cua ai dien khach hang.

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Bc nay c thc hien theo tieu chuan nganh va theo hng dan cua nhache tao. Khong c kiem tra o cach ien oi vi may nen mo-t loai kntrong luc hut chan khong.

2. Nap moi chat lanh cho Heat pump.3. Kiem tra lai o cach ien vi at cua mo-t (bang Megger)4. Kiem tra chay kho:

4.1. ieu chnh cong tac lu lng.

Muc ch la tat Heat pump khi lng nc lanh va nc nong giam. oi vicong tac an toan can phai reset bang tay, hay cho nc qua heat pump trc khith ngat. Cong tac lu lng c chnh nh tuy thuoc vao cac iem ngat cuacong tac an toan va co the c xac nh bang con so th nghiem gan ung nhatmot khi cac heat pump hoat ong. Tai thi iem nay, tr so ngat tng ng vi60% lu lng thiet ke th coi nh la hp ly, da vao vao ban hng dan cua nhache tao.

- Bao am rang chieu dai cua ong nhung phai ung theo c ong.- Noi chuong bao ong thong qua cong tac thng ong cua cong tac lu

lng.

- S dung dung cu o lu lng e o lu lng nc (annular, orifice plate).Neu khong co san thiet b o lu lng, iem sut ap i ngang qua cac dantrao oi nhiet cua heat pump a c nha che tao chng nhan dung nh laphng cach sau cung.

- ieu chnh cho cong tac lu lng se nha khi at 60% lu lng thiet ke.

Thc hien cac bc tng t e kiem tra may nen. Bo phan cam bien lu lngloai chenh lech ap suat.

Thao day dan t bo khi ong dan en mo t may nen trc khi thc hien cacbc kiem tra tiep theo.

4.2. Chnh nh thermostat nhiet o nc thap.

Dung nc a hoac moi chat lanh. Chnh cho themostat nha sau khi nhiet o at3.30 C trong vong 5 giay, hoac nhiet o cao hn theo yeu cau cua nha che tao.

4.3. Chnh nh thermostat nhiet o thap oi vi moi chat lanh.

Cac bc tng t nh muc 4.2. Chnh nhiet o khoang 00C da vao s chapthuan cua nha che tao.

4.4. Cac bo phan bao ve :

ong bo phan khi ong cua may nen. Ngat bo phan khi ong se nha ra do tacong cua cac bo phan bao ve sau:

- Cong tac LP/HP (noi rieng bnh cha moi chat lanh vi cong tac LP/HP thonglo gan ong ho ap suat)

-

Ap suat dau (nha bo phan khi ong trong khoan thi gian ngng theo chnhnh)

- Cac cong tac lu lng ( cong tac tiet lu nc)

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- Thiet b thi gian gii han so lan khi ong.

- Bo phan bao ve qua tai cua mo t may nen.

(nhan nut test van tr lai che o Auto sau khi xong qua trnh chay thnghiem. Cac chiller loai ln can phai injection test)

Trong khi chay th, kiem tra s hoat ong cua en bao hieu chay va s

co.- Bo bao ve qua nhiet cua mo t may nen (thermistor).

(thao ri bo cam bien tai mo-un TP)

- Thermostat nhiet o nc thap va moi chat lanh.

4.5. Kiem tra lai cac khoa lien ong gia heat pump va cac thiet b ben ngoainh :

- Bo ieu khien heat pump noi tiep.

-

Van nc by-pass cua heat pump- Bo khi ong cac bm.

- Bo ieu khien cung cap lanh (td : sau khoang thi gian chay si)

5. Kiem tra qua trnh hoat ong :5.1. Nhiet o dau

Cho hoat ong bo si dau trong vong 4-6 gi trc khi chay may nen.Tham khao hng dan cua nha che tao ve van e nhiet o dau co the chapnhan c oi vi cac chiller co may nen ly tam.

5.2. Kiem tra hng quay mo-t.5.3. Lap thiet b oc lu lng nc tren cac ng ong nc lanh va nc

nong; ieu chnh theo gia tr thiet ke neu can.

5.4. Khi ong Heat pump va lu ho s cac thong so hoat ong nh :

- Ch so cap tai (stage).

- Ch so ien the dong chay(A) dung ong ho o ampe kem a c hieuchnh.

-

Ap suat hut- Ap suat ay

- Ap suat dau

- nhiet o nc lanh vao

- nhiet o nc lanh ra

- Nhiet o nc nong vao

- Nhiet o nc nong ra

- Lu lng nc lanh. (l/s)5.5. T ho s hoat ong, xac nh iem chnh nh nhiet o cua bo ieu khien

va day can chnh theo ty le e at nhiet o nc thoat ra theo thiet ke khi

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Heat pump hoat ong on nh lien tuc (khong tang, giam tai) va khong vnhiet o xuong qua thap. Chnh bo ieu khien iem nay.

5.6. Giam iem chnh nh nhiet o tren bo ieu khien va t t giam nhiet onc ra cho en khi thiet b bao ve nhiet o nc thap cua heat pump hoatong. ieu quan trong la nhiet o nc ra phai c giam sat lien tucbang cach dung 1 nhiet ke ien t a c kiem nh. Lu ho s nhiet o

nc khi bo bao ve cua chiller hoat ong va ieu chnh e at 3.30C neucan thay can.

5.7. Giam ch so qua tai e ngat mo t may nen. Chnh tr lai ch so ien thebnh thng c qui nh tren nhan san pham sau khi kiem tra thnghiem.

5.8. Gia lap ieu kien ap suat thap, ap suat cao va lu lng thap, kiem tra shoat ong cua cac bo phan bao ve va en bao.

5.9. Kiem tra lai xem thiet b gii han so lan khi ong a c chnh t 4-6

lan khi ong trong mot gi.5.10.Kiem tra xem mo t co at en toc o nh mc trc khi bo ieu apchuyen sang ien ap nh mc hay khong bang cach chnh r-le thi gian,ong thi cung khong lu thi gian giam ap dai hn mc can thiet.

5.11.Kiem tra lai s hoat ong cua chu ky rut ga, neu co.

5.12.Bao am rang chiller khi ong hoan toan che o khong tai.

Chu y : Viec th nghiem va chay th may cap nhiet (heat pump) nc can phoi

hp chat che vi chuyen gia ky thuat cua nha cung cap

g. Van hanh bm : Nc :

- He thong phai c xuc ra va xa gio.

- Bo loc phai sach

- Van hut va van xa phai m

- Mot so va u cac van chan va cac van ieu khien (2 nga) c m e at 110-115% lu lng thiet ke.

ien

- C cau ch phai ung theo ban ve thi cong.


- Bao ve qua tai phai c chnh nh theo ung vi qui nh ghi tren nhan sanpham.

- Kiem tra cach ien vi at cua ong c (bang Megger)

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Tong quat :

- Kiem tra bang cach dung tay quay bm

- Kiem tra o thang hang, ong truc gia cac truc bm neu can (khong ap dungcho loai bm kn).

- Bo bm co the nhung t do tren lo xo, neu co.

- Lam kn cho noi gia ong xa va lo thoat nc tren san.- Kiem tra chieu xoay cua ong c.

Chay th :

Tong quat:

- Tat ca cac bm ma co ve tac ong lan nhau trong he thong (th du : ng hutchung, ng xa chung) eu phai c th nghiem ong loat nh the chungang hoat ong trong ieu kien thiet ke

- Lu lng nc phai c o kiem da vao o sut ap i qua thiet b o lulng thch hp a c hieu chuan, th du : annular hoac orifice plate, vac kiem chng lai bang cach ve o chenh lech ap suat bm len s o hoatong cua bm cua nha san xuat va so sanh vi cng o cua mo-t.

- Thong thng cac thao tac tang giam eu c thc hien tren van au ay cuabm. Neu tieng on qua ln, co the chia ra thc hien vi 2 hoac 3 van lap saubm.

Chnh lu:

- Chnh nh lu lng nc qua moi bm t 110 en 115% gia tr thiet ke nhc the hien tren dung cu o lu lng.

Lu y : phai chnh lu oi vi cac bm khac co lien quan

- Tat ca cac bm phai ang hoat ong

- Lap lai cac bc chnh lu oi vi cac bm khac co lien quan v khichnh lu cho mot bm se lam anh hng en lu lng nc qua bmkhac.

- Lu ho s ap suat ay va ap suat hut tai moi bm

- Lu ho s cot ap ngng tai moi bm va so sanh vi c canh bm thc te (Cotap ngng la cot ap c o khi bm ang hoat ong vi van au ay a cong).

- Lu ho s cac d lieu ghi tai nhan san pham cua bm va kch c canh bm.

- Dung ap ke thuy ngan o o sut ap i ngang qua thiet b co cac ac tnh ac biet trc nh chiller, noi un tai lu lng nc thiet ke.

- Lu ho s cng o hoat ong cua bm theo tng giai oan.

- Lap lai t bc 2 en bc 6 oi vi cac bm co lien quan e bao am rang :

+ S tang giam lu lng nc va cng o van phai nam trong vunghoat ong on nh cua bm va mo-t.

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+ Lu lng nc tang phai khong gay tac ong ngc lai cho cac thiet b

chnh nh chiller hoac noi un.

Bieu mau s dung :1 REE-TCF/F1 TRANG BA2 REE-TCF/F2 CAC BC KIEM TRA VA TH NGHIEM3 REE-TCF/F3 BIEN BAN KIEM TRA BM4 REE-TCF/F4 BIEN BAN KIEM TRA TU IEN IEU KHIEN (th sat)5 REE-TCF/F5 BIEN BAN KIEM TRA TU IEN IEU KHIEN (cac so o ac tai

hien trng)6 REE-TCF/F6 BIEN BAN KIEM TRA IEN TR CACH IEN CUA CAP IEN

h. Can chnh quat : Tong quat :

- Kiem tra bang cach dung tay quay th quat va mo t, Hop cha va canh quatphai sach.

- Hieu chnh o can cua day cu-roa, can chnh pu-li. Cai chan day cu-roa phaic at ung cho.

- Neu c lap vao lo xo, kiem tra xem quat co dao ong t do tren lo xo khong.

- Khp noi mem co u o chong rung khong va khong b x tai cac moi noi. Cackhp noi mem ben ngoai co c bao bang chat lieu chong tham nc khong.

- Long quat phai sach, khong co cac vat la t ben ngoai.

- Mo t phai c xiet an toan.

- Cac bo loc thch hp a c lap. Xem con khe h khong. Kiem tra o sach.

Gio :

- Van ieu chnh gio phai v tr t lc can nhat.

Th du : cac van cat la (FD) va van ieu chnh lu lng gio (VCD) phai m

hoan toanCanh chnh gio hoi/canh chnh gio ti, canh chia gio va cac canh chnh gio khacphai v tr gio ngoai t nhat

Cac van chnh ap suat tnh va chnh gio vao phai m hoan toan.

- Bo ieu khien toc o quat c chnh v tr ln nhat.

ien :

-

C cau ch ung theo ban ve thi cong.- Kiem tra cach noi day cua ong c e hoat ong ung ien the nh mc va toco cua ong c.

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- Bao ve qua tai phai c chnh nh theo ung vi qui nh tai nhan san pham

- Kiem tra cach ien vi at cua ong c ( bang megger )

Chay th :- Kiem tra hng gio

- Kiem tra cng o ien vao e bao am cng o hoat ong trong pham vi chophep a c ghi tren nhan san pham

- Chenh lech ap suat qua quat c c ve len s o ng cong hoat ong cuaquat e xac nh lu lng gio gan ung nhat. Xac nh lai bang cach o van tocgio qua tiet dien bang ong Pitot.

- Lu ho s toc o quat

- Lu ho s cac chi tiet trong qua trnh kiem tra & th nghiem vao bien ban Kiemtra & th nghiem.

CONG TY CO PHAN C IEN LANH

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