FFCng trnh/Project : XXXXXXXXXXXXXXXXNgy/Date :Hng mc/Service :
M&E - Calculation sheetReason for issue :ApprovalConcept;
Tender; Approval; Construction; Boq; Information; Action; Comment;
RevisionDanh sch pht hnh/Distribution List :S lng pht hnh/Number of
copies Issued- Khch hng/Client :- a CD/Disk :- Kin trc/Architect :-
Bn in/Print paper :- T vn C-in/M&E Consultant :- Bn photo/Photo
paper :- Nh thu chnh/Main Contractor :- Khc/Others :- Khc/Others
:NHP THNG S:Cha chy vch tngHng snxut/Bc chu la:IS tng19 tng + 1 tng
hmCha chy ngoi:Q1 =10l/sCha chy trong:Q1 =2.5l/sS hng cha chy
trong:n=2Chiu di vi rngl=20mHng s loi ng thpC=140( tnh tn tht)(TCXD
33-2006)p lc ti u lng phunP =21m(TCVN 4513-6.18, table 16)H s an
ton:a=1.00Thi gian cc vch tngt=3hCt p tnhH1=65mCha chy t ngNguy c
chy-nhm chyNguy c chy trung bnh - Nhm IOrdinary hazard - Group IMt
:D=7.2mm/minDin tch tnh tonA =240m2Thi gian cha chyt =60minK/c max
gia cc u phunm =4mH s an ton:a =1.00Ct p tnhH1=15mTnh ton ct p bmVn
tc trung bnh chn:V=2m/sH s an ton cho ct pn=1.10-Cha chy vch tng v
t ng:SttDL(m)Q(l/s)12002055.6Cuon voi + tu dong215012015.0Cuon
voi315023057.6Tu dong4100905.0Cuon voi51001057.6Tu
dong6650075042.5-Cha chy tng ncH s an ton:a =1.10Ct p
tnhH1=12mSttDL(m)Q(l/s)11506030.0Cuon voi + tu dong210012030.0Cuon
voiH THNG CHA CHY / FIRE FIGHTING SYSTEM1./ TIU CHUN THAM CHIU /
REFERENCE STANDARDS:-TCVN 2622-1995 (2): Phng chng chy cho nh v cng
trnh - yu cu thit k-TCVN 4513-1988 (1): Cp nc bn trong tiu chun
thit k-TCVN 5760-1993 (1): H thng cha chy-yu cu chung v thit k lp t
s dng-TCVN 6160-1996 (1): Phng chy cha chy - nh cao tng yu cu thit
k-TCVN 6161-1996; TCVN 5065-1990 (1): PCCC ch v trung tm thng mi-yu
cu thit k-TCVN 4317-1986: Nh kho - nguyn tc c bn thit k-TCVN
7336:2003: Phng chy cha chy - h thng sprinkler t ng-2./ THNG TIN D
N / PROJECT INFORMATION:-Bc chu la:Fire resistance level:I-S tng
(tng ):Number of Storey (storey)19 tng + 1 tng hm3./ TNH TON /
CALCULATION:a,/ Tnh ton Cha chy vch tng / Calculate for hosereel
systemDin gii / descriptionTCVNNFPA 13H thng cha chy vch
tngHosereel system:Tnh tonCalculaten vUnitGhi chRemarkTnh
tonCalculaten vUnitGhi chRemarkS m chyNumber of fire1TCVN
2622-1995(2) section 10.3 , table 12Lu lng cc bn ngoi -QoOutdoor
fire fighting flow rate10l/sTCVN 2622-1995(2) section 10.3 , table
12S ct nc cha chy bn trong - mIndoor fire landing2TCVN 2622-1995,
section 10.14 table 14 & TCVN 6160:1996, section 10.29Lu lng 1
ct nc cc bn trong - q 1 Fire landing flow rate2.5l/sLu lng cha chy
bn trong - QiIndoor hosereel fire fighting flow rate5l/sQi = m*qLu
lng cha chy bn trong v bn ngoi - QiuIndoor and outdoor hosereel
fire fighting flow rate15l/sl/minThi gian cha chy yu cuFire
fighting time Requirement -t3hminH s an tonSafety factor - a1.00Nhu
cu nc h cc vch tng - WhWater demand for hosereel system162.00mWh=
(Qo+Qi)*3600*t*a/1000mLu lng h cc vch tng - QiWater flow rate for
hosereel system54.00m/hQi= (Qo+Qi)*a*3600/1000m/hb,/ Tnh ton Cha
chy t ng / Calculate for sprinkler systemTiu chun /
StandardTCVNNFPA 13H thng cha chy t ng Sprinkler system:Tnh
tonCalculaten vUnitGhi chRemarkTnh tonCalculaten vUnitGhi
chRemarkNguy c chy - nhm chyOccupancy classification:Nguy c chy
trung bnh - Nhm IOrdinary hazard - Group I(A1 Index , 2 -TCVN
7336:2003)Odinary hazard group 1 (Automobile parking, laundries,
restaurant service areas)NFPA 13, A.5.3.1Mt Density -
D14.4mm/minTable 2 - TCVN 73364.9mm/minDin tch tnh tonArea of
application - A240m279mDin tch ph trch mt u phunCoverage per
sprinkler - S12m12.1mH s K ca u phunType of sprinklers calculated -
K factor :S u phun tnh tonNo. of sprinklers calculated - n20Headn =
A/S24HeadThi gian cha chy yu cuFire fighting time Requirement
-t60minTable 2 - TCVN 733660minK/c ln nht gia cc u phunMax Distance
between sprinklers:4m4.6mH s an tonSafety factor - a11Nhu cu nc cho
h cc t ng - WsWater demand for sprinkler system207.36mWs=
D*A*t*a/100082.03mWs= D*A*t*a/1000Lu lng h cc t ng - QsWater flow
rate for sprinkler system207.36m/hQs= D*A*a*60/100082.03m/hQs=
D*A*a*60/1000b,/ Tnh ton Cha chy tng ncTiu chun / StandardTCVNH
thng cha chy tng nc Drencher system:Din tch ti a ca 1bung ngn chy(
tng hm )1000mDin tch ti a ca 1bung ngn chy( tng hm )2130mChiu di
tnh ton ln nht cho zone tnh ton30.00mLu lng h cc t ng - QsWater
flow rate for sprinkler system108.00m/hNhu cu nc cho h cc tng
ncWater demand for sprinkler system108mc./ Bm cha chy / Fire
pump:0c.1.Lu lng bm / Pump flow-rate :51057.572.5Q = (max(Qh +
Qs))*n =314m3/h261Vi n =1.22073.6Chn / choose: Q =200m3/hLu lng bm
cha chyFire fighting flow rateQn vUnitGhi chRemarkCha chy vch tng
& t ngHosereel & sprinkler system200m3/hc.2.Tnh ton ng knh
ng / Pipe Diameter calculationSttNoDin giiDescriptionQ(l/s)V (m/s)D
(mm)D chn/choose(mm)Vt(m/s)1CC vch tng & t ngHosereel &
sprinkler system55.65118.94160774352001.772CC vch tngHosereel
system15.0297.72050238061500.853CC t ngSprinkler
system57.62191.49229459272001.83c.3.Tnh ton ct p bm cha chy vch tng
v t ngHosereel & Sprinkler Fire Pump head calculation:*)Ct p bm
/ Pump head:H = (H1 + H2 + H3 + H4)*n(m)-H1: Cao hnh hc t im cp nc
thp nht n im cao nht ca vi cha chy:H1: Geometry level from pump to
highest point of hosereel:H1 =67(m)-p lc t do u ming lng ca hng nc
cha chy v tr cao xa nht phi m bo ct nc ckhng di 10(m) (TCVN 2622.mc
10.11)Liberal pressure at bronze head of landing valve at the
highest & farthest location shall must to ensuresolid head
don't lower 10(m) (TCVN, section 10.11)-Tn tht trong ng ng t bm n
im cao, xa nht ca cng trnh s theo cng thc caHazen Williams nh sau
:Pressure loss total in pipe from pump to the highest &
farthest point of construction : the followHazen Williams formula:J
= 6,824x((V/C)^1,852)x(D^(-1,167))(TCXD 33-2006)trong / where:+Hng
s loi ng / Pipe type factor:C =140+Lu lng nc / Flow rate:5060Q
=55.6(l/s)60+ng knh ng / Pipe diameter:SttQ(l/s)V (m/s)D (mm)D
chn/choose(mm)Vt(m/s)Ghi
ch7.9006326.339125155.62188.06319451592001.77Hosereel &
sprinkler system+ mt p trn chiu di ng / Pressure drop in pipe
lengh:55.313.5844525J =0.0136m/m47.3-ng ng chnh / Main fire
pipeSttNo.Loi ng ngPipe typeKhi lng (m)Quantity (m)H s mt ploss
factorMt p ng(m)pressure lossGhi chRemarkQuy chun cp nc Ph lc
A/p14612002100.0136032.8565441592Diameter (mm)Elbow 90Elbow 45Tee
90ConnectGate valveBall valveCheck valve-Tn tht p lc do ma st bn
trong ng ng cp nc bng thp hay gang Xc nh theo bng
1566.3656.76(TCVN4513-6.14) v cng thc sau61.5Friction loss in steel
pipe or cast iron pipe : calculation follow table 15 (in TCVN
4513-6.14) and formula:56.4TCVN4513-6.14i=A*(Q^2)trong /
where:(mm)(l/s)(mm)(l/s)62.7+i :(m) tn tht p lc trong ng trn 1m
chiu di / pressure loss in 1meter pipe lengthknh ngSc cn Aknh ngSc
cn A+A :(l/s) sc cn n v ph thuc vo ng knh ng / unit friction,
depend on pipe diameter2526.2021000.016020.000267+q :(l/s) lu lng
nc tnh ton / calculation flow
rate325.63161250.00517380.00008623207.36*)Trng hp 1: cha chy cun
vi:SttM t200150125100806550402.67181500.0020370.000033951i
=0.47700617280.007638750.28609044480.0066753.8751436800.06925500.66481750.018960.011082A
=0.000154550.000033950.000086230.0002670.0011680.0028930.01108650.173582000.0092733q
=55.61557.65.057.602.5800.070082250.0048220.001168-Tn tht p lc gy
ra ti cc van v khp ni c quy i thnh tn tht p lc cho php ca ngtng ng.
Xc nh theo bng A-3 (Quy chun h thng cp thot nc trong nh v cng
trnh)Pressure loss in valve and fittings shall be converted to
pressure loss on pipe lineDetermined in table A-3 (in plumbing
code)SttLoi ng ngPipe typeKhi lngQuantityH s mt ploss factorMt p
ng(m)pressure lossGhi chRemarkQuy chun cp nc Ph lc A/p1461DN200 ng
thng (m)Straight pipe DN200 (m)2100.01362.8565Diameter (mm)Elbow
90Elbow 45Tee 90ConnectGate valveBall valveCheck valve2DN150 ng
thng (m)Straight pipe DN150
(m)500.007638750.3819103051834579161243812193DN100 ng thng
(m)Straight pipe DN100
(m)650.0066750.433915610366914183122457224384DN50 ng thng
(m)Straight pipe DN50
(m)200.069251.385020762457121924415260963658Tng mt p dc ng (m)pipe
Head loss total
(m)5.0574259145491524274183762045723212197321829366244106685486401524914213445730513716670650213412193048610396167648534652438152436587624881981210363-Khi
tnh ton mng li cp nc bn trong cn tnh thm tn tht p lc cc b bng phn
trm tn tht803048182945729146102438412192p lc do ma st theo chiu di
ng. Cho mng li cha chy l 10%
(TCVN4513-6.16)10042672438640112198233810016764When we calculate
inside water supply system, we need calculate fittings loss more
=125518230487620152410064267221336number percent * friction loss in
pipe.In fire network, it's 10% (in TCVN
4513-6.16)150609636589144182912195029224384-Do mt p trn ng ng /
Hence, Pressure drop in pipe :H2 =5.6m-Tn tht p lc trn cun vi /
Head loss in hossreel (in TCVN 4513 -6.19)trong / where:+H s sc cn
ca ng vi rng (50mm) / Friction factor of hosereel pipe (50mm):Kp
=0.012+Lu lng ct nc cha chy / Flow rate for fire head:q
=2.5l/s+Chiu di ng vi rng / Hosereel lengh:l =20mDo / hence: H3
=1.5m-p lc ca hng cha chy ti u lng phun / Head loss in bronze head
(TCVN 4513-6.18, table 16)H4 =21mCt p bm trng hp 1:SttNo.Din
giiDescriptionH1(m)H2(m)H3(m)H4(m)H(m)n1Tnh ton cho tuyn cha chy
vch tng675.61.5211241.3*)Trng hp 2: cha chy t ng:SttM
t2001501251008065501i =0.47700617280.11263795200.885841920002A
=0.00020.0000300.000300.0028930.011083q =55.657.6057.6000SttLoi ng
ngPipe typeKhi lngQuantityH s mt ploss factorMt p ng(m)pressure
lossGhi chRemark1DN200 ng thng (m)Straight pipe DN200
(m)200.47709.54013DN150 ng thng (m)Straight pipe DN100
(m)1600.11263795218.02214DN100 ng thng (m)Straight pipe DN50
(m)100.885841928.8584Tng mt p dc ng (m)pipe Head loss total
(m)36.4206Tn tht ma st trn ng ng:H2 =40.1mCt p yu cu ti thiu ti u
phun:H3 =5.0mCt p bm trng hp 2:SttNo.Din
giiDescriptionH1(m)H2(m)H3(m)H(m)n1Tnh ton cho tuyn cha chy t
ng6740.15.01461.3*)Trng hp 3: cha chy tng ncSttLoi ng ngPipe
typeKhi lngQuantityq (l/s)V (m/s)H s mt ploss factorMt p
ng(m)pressure
loss115021030.00001.69770.01763.705231003030.03.81970.12723.8146410000.00000.0000Tng
mt p dc ng (m)pipe Head loss total (m)0.14487.5198Tn tht ma st trn
ng ng:H2 =8.3mCt p yu cu ti thiu ti u phun:H3 =5.0mCt p bm cha chy
tng ncSttNo.Din giiDescriptionH1(m)H2(m)H3(m)H(m)n1Tnh ton cho tuyn
cha chy t ng128.35.0331.30d.ng ng / Pipe line:-H thng ng ng cha chy
bn ngoi, phi c thit k theo mng li vng.Outdoor fire pipe system must
to designed in circle network-ng knh ng dn nc cha chy ngoi nh t nht
100mm (TCVN 2622-1995.mc 10.8)Fire pipe (outdoor): minimum 100mm
(in TCVN 2622-1995, section 10.8)-Tr nc cha chy ngoi nh phi b tr dc
theo ng giao thng,khong cch gia 2 trkhng qu 120m (TCVN
2622-1995(2).mc 10.9)Fire hydrant (outdoor) must to design along
internal road, distance between 2 hydrant: not exceed120m (in TCVN
2622-1995, section 10.9)4./ TNG KT / SUMMARY:No.H bm cc vch tng v t
ngFire fighting pump systemLu lng Flowrate (m3/h)Ct p (m)Head
(m)Cng sutPower (kw)SL bm (ci)Quantity (ea)1Bm cha chy inElectric
fire pump20014612Bm cha chy duDiesel fire pump20014613Bm miJockey
pump51541No.B nc cha chyFire water tankV trLocationKhi tch ncwater
volume (m3)S lngQuantityGhi chremark1Cha chy vch tngHosereel fire
fighting systemB nc cha chyFire water tank162.002Cha chy t
ngSprinkler fire fighting systemB nc cha chyFire water
tank207.363Cha chy tng ngn ncB nc cha chy Fire water tank108Tng
cngTotalChn khi tch nc cha chyFire water tank4001Preparing by
M&E EngineerApproval by M&E chiefApproval by M&E
ManagerName : XXXXXXXXXXXXXXXName : XXXXXXXXXXXXXXXXName :
XXXXXXXXXXXXXXXXXXXXXXSignature :Signature :Signature :
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