ESP MECHANICAL WORK PART-IV FOR THERMAL POWER STATION.

Till date i have discussed ESP mechanical work up to inner roof panel.

ESP supplied by BHEL requires enormous quantity of welding (structural)ired 

at site . Therefore vendor should have adequate number of qualified welder

for the job . For 500MW and above unit at least 35 to 40 welders and around

20 tack welders are required at the peak time. As ESP jobs mostly sequential

in a pass therefore any delay on welding will delay the subsequent activities.

-Once all electrodes were loaded on temporary J- bolt then alignment work

for frames and shifting the load to permanent supports starts.

- Parallel erection of hopper wall also start once electrodes are fixed with

  frame by   bolts and this bolts are fixed by Huck bolting machine.

- Once should check the compatibility of the machine and bolts.

- All inner roof welding ,insulator housing work etc is complete then go

for insulation of inner roof and outer roof fixing.

- Funnel pre=assembly outlet and inlet to be done separately with from

the beginning as these activity will take about an year due to interfaces

Inlet funnel and outlet funnel requires huge space for assembly and at

site to get those space is difficult .However with proper planning same

could be achieved . 

ESP wall erection, roof erection and GD screen erection can be viewed.

Inlet funnel erection under progree with heavy duty crane.

Outlet funnel erection  under progress.

continued part-v

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