VIT154- DrainageConcept _2006!01!19.Doc

8/12/2019 VIT154- DrainageConcept _2006!01!19.Doc

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DRAWING/DOCUMENT STATUS: FOR APPROVAL

B 2006-01-19 FOR APPROVAL SV RK A 2006-01-09 FOR APPROVAL PKR RK

Rev. DATE DESCRIPTION Bearb.Coord.Geprft

Checked APPD.

PROJECT :

CAMAU 1 750MW COMBINED CYCLE POWER PLANTOWNER : OWNERS ENGINEER :

PETRO VIETNAMCPMB

CONTRACTOR : CONTRACTORS ENGINEER :

LILAMA CORPORATION FICHTNERSUBCONTRACTORS NAME : SUBCONTRACTORS SUPPLIER :

s POWER GENERATIONDRAWING TITLE :

PKZ UAS Contents Code Reg. No. UNID

Ursprung/Original Ursprung-Nr./Original-No. Urspr.-PKZ-Nr.Orig.-PC

Projekt/Project PKZ/PC

CA MAU 1 CCPP VIT154DatumDate

Name MastabScale N/A A4

UA/DCCType BN00

gezeich.Drawn 2006-01-09 P.K.RAY Benennung/Title

InhaltskennzeichenContents Code

bearb.Coord. 2006-01-09 S.VERMA

geprftChecked 2006-01-09 R. KUMAR UZ

Abtlg.Dept. E-CAM sgd.

Plant Drainage SystemConcept LOT 1 Zhl.-Nr.

Reg.-No.SPEL/P2/2006/006

Dienstst./Dept. UNID Index/Rev. Version

s AG POWER GENERATION SPEL-P2 423179055 B

Blatt-Nr./Page-No.

CM1-L1-C-UZ.05-610095 1/12Erstellt mit/designed with Ersatz fr

Supersedes


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Siemens Power Engineering Pvt. Ltd. The reproduction, transmission or use of this document or its contents is notpermitted without express written authority. Offenders will be l iable fordamages. All rights, including rights created by patent grant or registrationof a utility model or design, are reserved.

Form SPEL Y:\VIT154\ACAD\Civil\Buildings\Plant drainage concept-2006-01-19\VIT154-PLANT DRAINAGE SYSTEM_19-01-06.doc

Ref. (Department/Year/Serial No.)

Work Report SPEL/P2/2006/006Subject/Title Place Date

Plant Drainage System Concept GURGAON 2006/01/19 Author(s) Department Tel. Signature

P.K.Ray SPEL/P2 Sgd.S.Verma Siemens PG Sgd.Project

Ca Mau CCPP(Lot1) Signature for Release by Dept. Concerned(for Contents, Handling, Distribution)

Signature for External Release bySales & Marketing Dept. (NotRequired for Approval Documents)

Handling Instructions

Unrestricted R Kumar sgd

Proj.-Code UA Contents Code Doc. Ident. No.

VIT154 BN00 UZ 423179055

Summary*) Pages of Text: 5 Appendices: 1

This report includes concept of Plant Drainage system of roads and various structures inside theplant boundary and all buildings within the scope of Siemens.

Appendix-1 consists of data for storm water quantities at different TP17 and oily waste water aswell as locations of TP17 (a to w) and storm water down comers (RWP).

Siemens Concept

The plant drainage system comprises, basically the following subsystems:1. Storm/Surface water drainage system

Water from roofs of the buildings and paved areas will be drained via underground gravity

flow pipe surface water system to TP17 An exhaustive list of buildings/structures is dis-cussed in detail further in this report.

2. Oily waste water drainageSurface Water with traces of oil will be drained via underground gravity flow pipe system toterminal points TP16.1 to 16.8.

3. Waste water drainageWaste water from process drains will be drained through TP15. Chemical waste due towashing will be collected in pits/dykes and will be disposed of manually by owner.


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Report No.: SPEL/ P2/2006/006

Page: 2 of 10

Handling: Unrestricted


FORM/SPEL Y:\VIT154\ACAD\Civil\Buildings\Plant drainage concept-2006-01-19\VIT154-PLANT DRAINAGE SYSTEM_19-01-06.doc

1. Terms

Systems & Buildings

GM Plant drainage systemGQ Domestic waste water collection and drainage systemGU Rainwater system UBA Structure for power control centreUBD Structure for LV-auxiliary power transformersUBE Structure for MV-auxiliary power transformersUBF Structure for generator transformersUBN Structure for emergency power generating setUBS Structure for cable shaftsUBX Structure for generator circuit breakerUBZ Structure for cable ductUEN Structure for fuel gas meatering, heating ,filteringUEY Pipe bridge / sleeperwayUHA Structure for heat recovery steam generatorUHB Structure for auxillary boilerUHN Structure for bypass stackUHW Structure for boiler blowdown tankUHX Structure for sampling containerULA Structure for feedwater pumpsUMA Steam turbine buildingUMB Gas turbine buildingUMX Structure for diffuser wallUMY Structure for Pipe and cable bridgeURB Structure for GT/GT generator fin fan coolerURC Structure for lube oil fin fan coolerURX Pipe supportURY Sleeper wayUSA Structure for ventilation unitsUTX Structure for ignition gas tankUZA RoadsUZJ Fencing and gatesPAB Main cooling water pipes

GT Gas TurbineST Steam Turbine


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The plant drainage system discharges for each structure is handled as follows:

11/12UBA01/02/03, 10UBA21/22, 00UBA91/92: Structure for power control centre

Rain water from roof of the PCC will lead to TP1711/12UBD 00/10UBD: Structure for LV transformerNo drainage required

11/12 UBE & 10/11/12 UBF: Structure for MV Auxiliary and Generator TransformersEach transformer area is designed as a containment bunding for 20% collection of discharge ofrainwater, leakage oil and fire fighting water. The sump within the bund will be connected by grav-ity pipe system to TP16.1.

00UBN : Structure for emergency power generating setThe oily waste water from power generating set will be connected to TP16.5. The container roofis drained through TP17.

10UBS01- 36 : Cable shaftsNo drainage is provided, however a sump will be provided inside each UBS and in case of anyaccidental water ingress, it can be pumped out using portable pumps. No permanent pumping willbe provided.

11-12UBX : Structure for generator circuit breakerStorm water from roof will be drained to surrounding landscape area.

00UBZ: Structure for cable ductStorm water from surface will be drained into surrounding landscape

11/12UEN : Structure for fuel gas metering, heating and filteringStorm water from UEN slab surface will be drained into surrounding landscape

11/13UEY,12UEY : Sleeper way, Pipe BridgeNo drainage required.

11-12UHA : Structure for HRSGStorm water from roof is drained to the storm water pipe to the storm water drainage system.Waste water from HRSG will be collected and led to the waste water drainage system by gravityflow through TP16.6

00UHB: Structure for Auxiliary steam generatorStorm water on auxiliary boiler foundation slab and roof is drained to the surrounding landscape.

Waste water collected is routed to TP16.4.

11-12UHN : Structure for bypass stackDrains from the stacks (in case of washing) are to be connected to TP16.6.

11-12UHW : Structure for boiler blow down tank


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Boiler blow down tank discharge will be directed to TP15 and oily waste water portion of boiler willbe drained to a nearby TP16.4 from the sump pit.

00UHX : Structure for sampling container A collecting pit will be provided adjacent to the UHX foundation. All drains arising from the sam-pling container will be connected to this collecting pit. The collecting pits will be connected towaste water drainage system through nearby TP16.6.Storm water from roof will be drained into surrounding landscape.

10ULA : Structure for feed water pumpsRain water from ULA slab will lead to the ground nearby. Accidental oil discharge inside the BFPenclosure will be collected in sump pits and routed to TP16.4. Discharges from process drains willalso be connected to TP16.4.

10UMA : Steam turbine buildingFloor and equipment drainage from inside the building will be collected in sump pits in UMA slab.

These pits will be connected to a common sump located in CEP pit. The water is than pumped tonearest outdoor pit which is connected to TP16.3.Storm water from roof will be led by storm water drainage system toTP17 by gravity.The lube oil system will be located within a dyke area, any leakage will be stored within the dykeand removed manually.

11-12UMB : Gas turbine buildingFloor and equipment drainage from inside the building will be collected in sump pits in UMB slab.These pits will be connected to TP16.2.Storm water from roof will be led by storm water drainage system through TP17.The lube oil system will be located within a diked area, any leakage will be stored within the dikedand removed manually.Compressor wash water drains from Diffuser, gas turbine and air inlet duct will be collected in a pit( TP 16B)outside the UMB building and disposed off it manually by client.

11-12UMX: Structure for diffuser wallDrains from the diffuser and its enclosure (in case of washing) are to be connected to TP16.6.

10-11-12UMY : Pipe and Cable BridgeNo drainage measure is envisaged. Water will flow to surrounding landscaped areas

11-12 URB : Structure for GT/ GT generator fin fan coolerNo drainage measure is envisaged. Water will flow to surrounding landscaped areas

11-12 URC: Structure for lube oil fin fan cooler

No drainage measure is envisaged. Water will flow to surrounding landscaped areas10URX 01-02: Pipe SupportsNo drainage required.

10URY: Sleeper wayNo drainage required.


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11-16USA: Structure for ventilation unitsNo drainage measure envisaged water will flow to surrounding landscaped areas

10UTX: Structure for ignition gas tankNo drainage measure envisaged, water will flow to surrounding landscaped areas.

00UZA : RoadsStorm water from road surface is collected by road gullies and led by buried pipe gravity system tostorm water drainage system through TP17.

10UZJ : Fencing and gatesNo drainage required

PAB: Main cooling water pipesNo drainage required

Waste water discharge from and during construction shall be connected to TP26.


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APPENDIX-1 VIT154: Camau 720MW CCPP Plant Drainage Concept

Rainfall Data

Maximaum 20 min Rainfall = 49.8 mm (Given value)

Maximaum 20 min Rainfall per hr = 149.4 mm/hr

Maximum rainfall in l/s-ha = 415 l/s-ha

Time Coeff. For n =1 and T= 5 min. = 2.07

Design rainfall intensity =415 x 2.07 = 859.05 l/s-ha

(Rainfall i ntensity f or 5 min dur ation and a recurrance interval of 1 year)Table

S.No. Build ing Descri ption

Plan Area(sq.m)

Plan Area(ha)

Runoffcoeff.

Rainfallintensity

Quantityof stormwater inl/sec

1 UMA Steam turbine building 2310 0.231 1 859.05 198.44

211 UMB12UMB Gas turtbine building 2130 0.213 1 859.05 182.99

3

11 UBA0111 UBA0211UBA03

Power control centre(gas turbine) 322 0.032 1 859.05 27.67

4

12 UBA0112 UBA0212UBA03

Power control centre(gas turbine) 322 0.032 1 859.05 27.67

5 00UBN Emergency Diesel 132 0.013 1 859.05 11.32

6

00 UBA9200 UBA9110UBA2110UBA22

Power control centre(21,22-steam turbine)(91,92-common part) 355 0.035 1 859.05 30.45

Total quantity of storm water from above buildi ngs = 478.54


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Storm Water Quantities at different TP-17

S.No. BuildingStrom Water Dis-charge

Quantityof stormwater inl/sec

TP17-a 27.3

TP17-b 27.3

TP17-c 27.3

TP17-d 39.1

TP17-e 39.1

1 UMA

TP17-f 27.6

TP17-g 30.7

TP17-h 19.2

TP17-i 19.2

TP17-j 19.2

TP17-k 6.12

TP17-l 19.2

TP17-m 6.12

TP17-n 19.2

TP17-o 6.43

2 UMB

TP17-q 38.37

3 11 UBA01

11 UBA0211UBA03 TP17-p 13.84

TP17-r 13.844 12 UBA0112 UBA0212UBA03 TP17-s 38.37

5 00UBN TP17-t 5.66


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TP17-u 5.66

TP17-v 15.236 00 UBA92

00 UBA9110UBA2110UBA22 TP17-w 15.23


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Quantity of Oily w ater for 10 UBF, 11UBF, 12UBF (trafo oil +fire fight ing water)

TP-16.1

Quantity of oil water = 99.33 l/sec

Quantity of deluge water = 63 l/sec

Quantity of water for hose pipe = 31.5 l/sec

Total quantity of water (transfo oil +fire fighting ) = 193.83 l /sec

Total quantity of water in t he case of emergency as recommended is 170m 3 in 10 min. = 283 l/sec

(Ref :- MOM items for Kick off meeting 5-9, dec-05)

The total quantity of water going in TP-16.1 is taken as = 283 l/sec

Quantity of Oily w ater for UMB

TP-16.2

The quantity of oily w aste water is taken as =10 l/sec

Quantity of Oily water for UMA

TP-16.3

The quantit y of oily waste w ater is t aken as =20 l/sec (emergency case)


Quantit y of Oi ly w ater for 11UHW, 12UHW

TP-16.4

The quantity o f oil y waste w ater to be pumped out = 10 l/sec



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Oily waste water quantities

S.No.Build-ing

Oil wastewaterdis-charge

Quantity ofoily waste inl/sec

1 10 UBF11 UBF12 UBF TP-16.1 283

2 UMB TP-16.2 10

3 UMA TP-16.3 20

411 UHW12 UHW TP-16.4 10


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