Dual Year Mechanical maintenance of ESP of 5x200MW B TPS Obra

Amount

Cleaning of complete structure, electrodes, insulator bushing and shock bars of one field and connected two Nos. hoppers of ESP by wire brush, compresses air opening hopper side & top manhole.

Cleaning of complete two Nos. Hoppers of one field of ESP.

Replacement of damaged motor gear of rapping system.

Repairing of damaged rapping gear box.

Servicing of rapping gear box coupling bearing block.

Straightening of bend collecting electrodes.

Removal & fixing the collecting electrodes.

Repairing of bend collecting electrodes in ESP in fixed condition.

Removal of damaged emitting electrodes and fixing.

Servicing/repair/replacement of rapping hammer.

Repair/replacement of bend shock bar.

Straightening of rapping shaft.

Repair/fixing and welding of ash deflector plate.

Two coat of continuous run of welding on ESP ash hopper, ESP roof, other places in ESP.

Fabrication and erection of new deflector plates in ash hopper.

Inspection and checking of fields and removal of minor defects.

Replacement of asbestos rope of ESP top manholes, side manholes and ESP hopper manholes.

i) ESP top manholes

ii) ESP side manholes

iii) ESP hopper manholes.

Fixing of collecting electrodes with new clamp by welding.

Straightening of bend stay guide bar of collecting structure.

Replacement of damaged shaft insulator by new one.

Replacement of the damaged support insulator by new or replacement of sealing asbestos rope of size 20 mm & 10/8 mm.

Repair of support insulator screen pipe of ESP.

Replacement of plain bearing by new one if required.

Repair/replacement of shock bar guides, front, rear and support hook by welding and grinding wherever required.

Repair/replacement of coupling of reduction gear box of emitting/collecting rapping system.

Repairing or emitting frame by patch welding.

Replacement of damaged bracing pipe at ESP inlet.

Replacement/repair or vertical stay of emitting frame of ESP.

Repairing of man hole by replacing the damaged plate portion with new one.

Attending leakages of flue gas duct from ESP inlet gate to ESP outlet gate.

Repairing of ESP inlet duct to ESP outlet duct welding of new plates inside the duct.

Fabrication & replacement of expansion joints bellows/baffle plate.

INDIA ENGINEERING WORKS (BID ID -4569671)

M/S NISHA ENTERPRISES (BID ID -4588941)