Blr Fill Dm Pump

7/28/2019 Blr Fill Dm Pump

1/9

Station: NTPC- Simhadri BHEL Ref No.PS-DC-186-500-150

NTPC Ref no SIM/0/TS/4/150

Sheet 1 of 8

Plant area: BOILER

PROCEDURE FOR COMMISSIONING OF BOILER FILLING PUMP (FOR MAIN &

AUXILIARY BOILER) / DM MAKE UP PUMPS AND ASSOCIATED SYSTEM

SLNO

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

PLANT DETAILS

OBJECTIVE

PROPOSAL

SERVICES REQUIRED

SAFETY PERECAUTIONS

EMERGENCY PROCEDURE

STATE OF THE PLANT

TEST METHOD

COMPLETION CRITERIA

APPENDICES

a. LOG SHEET


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NTPC Ref no SIM/0/TS/4/150Sheet 2 of 8

Plant area: BOILER

PROCEDURE FOR COMMISSIONING OF BOILER FILLING PUMP (FOR MAIN &


SLNO1.0

1.1

1.2

PLANT DETAILS:

Boiler Fill Pump & Associated System (Main & AuxiliaryBoiler)

This system consists of 2 Nos of centrifugal pumps meant forinitial filling of the Unit. These pumps are connected to 2 Nos ofDM water storage tank and through its associated pipe line Boilerfill pump (Main) delivers DM water to Unit No 1 and 2 for boilerinitial filling as well as deaerator initial filling. Boiler Fill pump

meant for Auxiliary boiler delivers DM Water to Auxiliary boiler.

Pump Parameter (Main Boiler)

a) Capacity : 200 CUB. M/HRb) Pressure : 18 KSC (Design)c) No. of Pumps : 2 Nos.

Boiler Fill Pumps (Main) are common for both Units.

Pump parameter (Auxiliary Boiler)

a) Capacity : 20 CUB. M/Hr.b) Pressure : 10 KSC (Design)c) No. of Pumps : 2 Nos.

DM make up pumps & Associated system.

This system consists of 3 Nos of contrifugal Pumps meant fordelivering DM water to

a) Condenser - Hotwell make up

b) Stator Cooling System make upc) ECW overhead Tankd) Hydrogen Plante) Condensate Storage.

STATUS

Signatures

NTPC BHEL


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Plant area: BOILER

PROCEDURE FOR COMMISSIONING OF BOILER FILLING PUMP (FOR MAIN &AUXILIARY BOILER) / DM MAKE UP PUMPS AND ASSOCIATED SYSTEM

SLNO

2.0

3.0

4.0

4.1

4.2

DM make up pumps are connected to 2 Nos of DM water storagetanks and through its associated pipe lines, delivers DM water tosystems mentioned abve. DM water up pumps are common forboth Units.

Pump Parameters are

a) Capacity : 85 CUB.M/HRb) Pressure : 7 KSC (Design)c) No.of Pumps : 3 Nos.

Refer to section 10.0 for lay-out of Boiler fill pump and DM makeup pumps.

OBJECTIVE:

To commission the Pumps and their associated pipe lines andmake it available for the DM water requirements of Main and

auxiliary Boiler.

PROPOSAL:

It is proposed to commission the pumps and its system bya) Trial running the pumps under recirculation for 8 Hrs.b) Flushing the lines up to delivery points for a duration

mutually agreed between BHEL and NTPC (Refer Section1.0 for delivery points)

SERVICES REQUIRED:

Availability of sufficient quantity of DM water.

Availability of L.T. Power Supply

STATUS

Signatures

NTPC BHEL


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Plant area: BOILER


SLNO

4.3

4.4

4.5

5.0

6.0

Availability lighting, communication at working area.

Availability of sufficient manpower with required tools & tacklesfor any pump maintanance.

Availability of operating personnel for the activity.

SAFETY PRECAUTIONS:

Refer Procedure No. PS-DC-186-500-100/SIM/1/TS/2/100.

EMERGENCY PROCEDURES:

Refer Procedure No. PS-DC-186-500-100/SIM/1/TS/2/100.

STATUS

Signatures

NTPC BHEL


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Plant area: BOILER


SLNO

7.0

7.1

7.2

7.3

7.4

7.5

7.6

7.7

7.8

7.9

STATE OF THE PLANT:

Pump and motors are erected as per recommended drawingsand check lists.

Erection of the following are completed.

a) 2 Nos DM water storage tank (Common for station)b) All associated suction and discharge lines of the pumps upto receiving point.

All permanent supports of systems of both Boiler fill pumps andDM make up pumps are erected as per drawing.

Pump bearings are lubricated as per recommendation.

Cleanliness of DM water storage tank ensured and DM waterfilled up to required level.

Electrical connection to Motor is completed with recommendedprotections and the requited mock start / stop conductedsatisfactorily under pump and motor in decoupled condition.

Insulation Resistance of the motor measured and confirmed OK.

All local and remote indication of pump and Tank are madeready. List of Indications, interlocks and protections required aremade mutually by BHEL and NTPC.

Sealing and cooling water lines (if applicable) are laid andconnected to pumps.

STATUS

Signatures

NTPC BHEL


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Plant area: BOILERPROCEDURE FOR COMMISSIONING OF BOILER FILLING PUMP (FOR MAIN &


SLNO

8.0

8.1

8.2

8.3

8.4

8.5

8.6

METHOD

Under decoupled condition, start the motor and check direction ofrotation.

Motor started and 8 Hrs trial run completed. During the trial run,

observations are made for normal vibration and bearingtemperatures.

Pump and motor coupled and the pump lined up from DM waterstorage tank back to tank through re-circulation line keeping thedischarge valve closed.

Pump started at local and put under 8 Hrs trial run through RCline.

During the trial run, pump vibration, load current, bearing

temperatures, suction and discharge pressures are logged.

DM water line from the pump up to the delivery terminal are linedup and pump started and run for duration mutually agreedbetween BHEL & NTPC for flushing the lines one by one. For thisflushing, a suitable opening to be made at the delivery terminalpoint for discharging flushed water.

STATUS

Signatures

NTPC BHEL


7/9



Plant area: BOILERPROCEDURE FOR COMMISSIONING OF BOILER FILLING PUMP (FOR MAIN &


SLNO

9.0

9.1

9.2

COMPLETION CRITERIA:

All the pumps are run for 8 Hrs trial run satisfactorily underrecirculation.

DM water lines from DM storage tank up to all delivery terminals

are flushed for duration mutually decided between BHEL &NTPC.

STATUS

Signatures

NTPC BHEL


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SHEET 8 OF 8

10.0 APPENDICES:

b) LOG SHEET

STATION :UNIT NO :ACTIVITY :

S.NOPUMP

LOADING

(AMPS)

PRESSUREBEARING

TEMPERATURE

SUCTION DISCHARGE DE NDE

Signatures

NTPC BHEL


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PROCEDURE FOR COMMISSIONING OF BOILER FILLING PUMP

(FOR MAIN & AUXILIARY BOILER) / DM MAKE UP PUMPS AND

ASSOCIATED SYSTEM

Blr Fill Dm Pump

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