BOILER FEED PUMP ERECTION AND COMMISSIONING PART-VI ABC OF THERMAL POWER PLANT

FINAL COMMISSIONING OF BOILER FEED PUMP ( mdbfp)

Till my last dispatch we have discussed erection and commissioning of Boiler Feed pump including oil flushing of lubrication oil lines ,acid cleaning of the same , hydraulic test of coolers and other integral pipelines. Now we will discuss about Boiler feed pump commissioning as a whole. BFP( MDBFP) is one of the first major equipment need to be commissioned before Boiler light up.

Commissioning includes checking of following activities completion as per drawing and quality plan.

1              Erection completion of feed water lines.

2              Instrumentation stub parts completion.

3              Completion of Alkali/ detergent flushing of feed water system, as well as condensate system and heaters drip system.

4              Cleaning and normalisation of deaerator and feed lines

5              Checking & setting of hangers and supports of feed water lines including BFP suction lines, recirculation lines.

6              Deaerator filling with DM water.

7              Final flushing of the suction lines of Booster Pump & BFP .

Readiness of cooling water system

1 Erection completion of cooling water lines of,                                                                                                                                                                                                                                                                                                                                                                                                    

BFP Motor

                Lubrication  oil coolers and working oil coolers

                Seal water coolers of BP & BFP

2              Commissioning  of the motorised actuators of motor cooling water valve..

3              Checking & setting of hangers & supports of CW lines of CW system and motor cooler.

4              Availability & readiness of cooling water/ system.

5              Flushing of all cooling water lines of CW system and motor cooler.

Completion of  ACW  system and heat exchangers ,Pumps, tanks  ,pipelines with instrumentation.

Electrical and C&I work completion  of Feed Pump , Feed station , control valves ,actuators etc.

1              Meggering of BFP motor

2              Availability of HT supply

3              Ensure proper earthing of BFP motor and instruments panel..

4              Completion of instrumentation (bearing oil press & temp) impulse piping and mounting of

press/ temp gauges, and winding, temp RTDs

5              Filling of Hydraulic coupling sump with fresh oil after oil flushing & cleaning of sump

6              Oil pressure optimization  at motor bearings.

7              Ensure de-coupling of motor with booster pump and hyd. Coupling.

8              Ensure free rotation of motor by hand.

9              Checking of BFP motor protections and CW valve interlock.

10           Charging of CW system and lubrication  oil cooler.

11           Bumping of motor and checking DOR

12           Trial run of BFP motor

13           Monitoring of motor parameters.

                   I.    Motor current and voltage.

                   ii.   Motor winding temperatures.

                   iii.  Bearing temperatures.

Continued to concluding part