Description: NCTPS I SE MI Circle AOH 25 26 BM Dn Unit I ID fans Renewal of ID fan 1A and 1B wornout impeller assembly dynamic balancing of shaft with impeller assembly during annual overhaul for the year 2025 26 Name of Work NCTPS I SE MI circle AOH 25 26 BM Dn Unit I ID fans Renewal of ID fan 1A 1B worn out impeller assembly dynamic balancing of shaft with impeller assembly during annual overhaul for the year 2025 26
Details: Dismantling of wornout ID fan shaft & Impeller for 1A &1B: Work involves Loosening of all the bolts and removal of all bolts and nuts, gas cutting if necessary and dismantling the top quadrant portion of casing, dismantling the seals, removal of shaft and impeller assembly by proper slinging and placing over the stand. Removal of shaft with impeller assly after loosening all the bolts and gas cutting of conical cover plates and thin bolt covering disc plate. Including devolution and transportation, cost of consumables and T&P’s. Renewal of shaft, Impeller & conical cover plate assembling for 1A &1B: Work involves Refixing the new shaft into the impeller hub by proper matching, torque tightening of impeller bolts, tack welding the bolts with the shaft, mounting the conical cover plate, bolting and torque tightening the cover plate bolts and welding of bolt head cover plate inserting the entire shaft impeller assembly without damaging, edge preparation in the flanges and refixing the top
Sector: Power Sector