Uttar Pradesh Rajya Vidyut Utpadan Nigam Limited-UPRVUNL has published Tender For Biennial Contract For Routine, Preventive And Breakdown Maintenance Of Air Pre-Heater And Preventive & Breakdown Maintenance Of Scanner Fan, Secondary Air Damper Control, Spring Hanger, Igniters, Repairing And Servicing Various Dampers Of Air F. Submission Date for this Tender is 17-06-2023. Springs Tenders in parichha Uttar Pradesh. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Round the clock routine & preventive maintenance of Air Pre-Heater with other associated work of boiler of Unit no. 5 & 6 of 2x250 MW, PTPP, Parichha, Jhansi (One Job = One day/3-shifts per Unit) |
| 2 | Servicing of Air Motor of Air Pre-heater. |
| 3 | Replacement/Resetting of radial seal leaves and plates. |
| 4 | Resetting/replacement of circumferential (bypass) seal. |
| 5 | Repairing/Replacement of APH cold end & hot end rotor post seal. |
| 6 | Resetting/Replacement of axial seal and leveling of axial seal plate by means of adjusting bolts in APH. |
| 7 | Re-visioning / Repairing of air seal housing of guide bearing of APH. |
| 8 | Replacement of asbestos rope of required size of manhole of APH. |
| 9 | Cleaning of heating elements of APH and coils of SCAPH by air /water. |
| 10 | Alignment of electric motor/air motor with reduction gear box of air pre-heater. |
| 11 | Replacement of gear box of air pre-heater. |
| 12 | Servicing of gear box of air pre-heater. |
| 13 | Cleaning and refilling of oil in gear box of APH. |
| 14 | Servicing/overhauling of lubricating oil pump of guide bearing/support bearing of APH. |
| 15 | Repairing of oil/ Water value lube oil system of size 25mm. to 40mm. |
| 16 | Replacement of oil/ Water valve lube oil system of size 25mm. to 40mm. |
| 17 | Replacement of lube oil pump of guide / Support bearing by new/ repaired. |
| 18 | Replacement of pipe of size 10mm. to 40mm. dia. Of air/ water / oil line. |
| 19 | Servicing / overhauling of over running clutch system of APH. |
| 20 | Cleaning of filter of lube oil system of guide bearing / support Bearing of APH. |
| 21 | Servicing and Cleaning of Coolers of lube oil system of guide Bearing / support Bearing of APH. |
| 22 | Replacement of fluid coupling. |
| 23 | Replacement of guide Bearing of Air Pre-heater. |
| 24 | Checking of Gear Box of APH. |
| 25 | Cleaning of guide Bearing and their housing. |
| 26 | Cleaning of support bearing and their housing. |
| 27 | Repairing and reconditioning of centre section surface beneath guide bearing and casting the refractory. |
| 28 | Leveling of sector plates of Hot end/ cold end. |
| 29 | Servicing/Replacement of spring hanger support, anchors and restraints of boiler (Critical piping and ducts) and resetting the spring hangers on cold set valves. |
| 30 | Servicing/Replacement of Scanner air fan including filters, Discharge dampers and Emergency damper. |
| 31 | Cleaning of air filter ofscanner air fan |
| 32 | Replacement/Servicing/Repairing of Burner Tilting Mechanism. |
| 33 | Servicing/Repairing/Replacement of oil gun guide assembly at AB,CD and EF elevation. |
| 34 | Servicing of secondary air damper in wind box (L&R). |
| 35 | Replacement/Servicing of Igniter guide assembly at AB, CD and EF elevation. |
| 36 | Repairing of wind box (L&R)./welding Chucker plate / firing floor /steel board |
| 37 | Cleaning of Aerofoil of secondary air duct to wind box (L&R). |
| 38 | Repairing/Servicing of scanner guide assembly. |
| 39 | Cleaning of wind box (One wind box treated as one job). |
| 40 | Running welding of boiler except fin welding |
| 41 | Repairing of oil gun. |
| 42 | Fabrication and installation of damper location plates |
| 43 | Strengthening with hard facing connected supported walls of boiler as and when required |
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