COMMISSIONING OF BOILER PART-II (ABC OF THERMAL POWER STATION)

While discussing about sub system it is not out place to list out the sub system of

control and instrumentation required for commissioning of Boiler.

FSSS CONTROLS SYSTEM

SADC  SYSTEM

SOOT BLOWER CONTROL

MILL LOCAL CONTROLS

FAN TURBINE DRIVE CONTROL

FAN LUB OIL CONTROL

AH LUBE OIL CONTROL

ELECTROMATIC SV CONTROLS

SOOT BLOWER MCC AND PB STATIONS

BOILER AC DIST. BD.

AH FIRE DETECTION SYSTEM

MILL FIRE DETECTION SYSTEM

AH ROTOR STOP SERVICE.

BOILER DRUM LEVEL SWITCH

BOILER LOCAL INSTRUMENTS

The term “ COMMISSIONING ” is used to describe the activity involved during the latter stage of erection up to the completion of the 72 hours trial run on full load, which leads commercial operation. The commissioning phase is a period of intense activity where many previously unrelated activities start to merge or interact with one another forming a complex sequence of events, with the advent of large generating units, the increased complexity of the plant and the closer limits available on the operating parameters, it is essential to ensure that the plant has been thoroughly tested prior to the normal operation so that initial performance can established and defects and omissions clear.                                                                                                                                                    BOILER COMMISSIONING ACTIVITIES The commissioning team will organize their activities in such a manner that the following jobs are completed to meet the boiler light up requirements: 1.     Trial of ID&FD fans. 2.     Trial run of air heaters and readiness of AH soot blowing and fire fighting system. 3.     Readiness of the light oil systems for firing. 4.     Trial run of ignitors fans 5.     Trial run of rapping mechanism of E.P. 6.     Gas distribution test on E.P. 7.     Air load test of EP. 8.     Readiness of feed pump 9.     FSSS simulation for the bottom elevation. 10. Boiler interlock and protection check. 11. Readiness of the bottom ash protection and water seal. 12. Trail run acid circulating system.                                                                                                                                                         Commissioning manpower ( Unit commissioning in charge  ) should be available at site from HT of Boiler to check the erection completion of the system. They check the following erection completion. 1. All Buckstay erection completion and its free ness. There should not be any restriction of furnace expansion. 2. Furnace roof completion . 3. Hanger support of Pressure Parts and piping checking. 4. Minimum insulation completion. 5. Burner alignment and soot Blower nozzle setting 6. Collection of all latest PID drawings . 7. Collection of all other relevant data and protocols from erection group. 8. Duct erection checking specially support ( fixed and sliding) 9. Checking of rotating machines like ID ,FD , scanner fans etc. These are preliminary checking other checking will come across as time progresses. I am attaching a few photographs of large power station for information continued to part-iii P.S If  you are looking to earn few legitimate extra money from the comfort of your home then please click on the link given below LINK 1 - PLEASE CLICK HERE  LINK 2 - PLEASE CLICK HERE