Uttar Pradesh Rajya Vidyut Utpadan Nigam Limited-UPRVUNL has published Annual Running Maintenance Of Main Boiler For Unit No . 12 And 13 , ( 2X200mw ) Btps , Obra. Submission Date for this Tender is 15-04-2020. Boiler Work Tenders in B Thermal Power Station, Obra, Sonebhadra(U.P.) Uttar Pradesh. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 05-Jan-2020 | Date Extension2 | Date | 21-01-2020 |
| 2 | 18-Jan-2020 | Date Extension-3 | Date | 29-01-2020 |
| 3 | 30-Jan-2020 | Date Extension-4 | Date | 13-02-2020 |
| 4 | 16-Feb-2020 | Date Extension5 | Date | 02-03-2020 |
| 5 | 04-Mar-2020 | Date Extension6 | Date | 23-03-2020 |
| 6 | 25-Mar-2020 | Date Extension | Date | 15-04-2020 |
| Name of Work : Annual running maintenance of Main Boiler for unit no.12 &13, (2X200MW) BTPS, Obra | |||||
|---|---|---|---|---|---|
| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
| 1 | 1 | Servicing of oil gun guide assy, ret/adv, mechanism at AB, CD & EF elevation by replacement of damaged parts by new one. | 1 | 6 | Nos. |
| 2 | 2 | Replacement of coal burner assy. by new/repaired one. | 2 | 10 | Nos. |
| 3 | 3 | Replacement of oil gun/ret. adv. mechanism at AB, CD & EF elevation by new/ repaired one. | 3 | 20 | Nos. |
| 4 | 4 | Repairing of guide assembly at elevation AB, CD & EF. | 4 | 4 | Nos. |
| 5 | 5 | Repairing/replacement of scanner guide assly. | 5 | 2 | Nos. |
| 6 | 6 | Repair/replacement of scanner and opening the bolts of flange & taking it out. | 6 | 2 | Nos. |
| 7 | 7 | Repair/Refitting of scanner guide assembly. | 7 | 2 | Nos. |
| 8 | 8 | Replacement of air nozzle by new/repaired one. | 8 | 4 | Nos. |
| 9 | 9 | Repairing of buldge/burnt air nozzles. | 9 | 4 | Nos. |
| 10 | 10 | Repairing & replacement of defective/burnt air nozzle. | 10 | 4 | Nos. |
| 11 | 11 | Servicing of secondary air damper in wind box. | 11 | 14 | Nos. |
| 12 | 12 | Repairing of secondary air damper in wind box. | 12 | 7 | Nos. |
| 13 | 13 | Repairing of Manhole of boiler. | 13 | 2 | Nos. |
| 14 | 14 | Replacement of packing of manholes. | 14 | 4 | Nos. |
| 15 | 15 | Repairing of Boiler Peep Holes. | 15 | 8 | Nos. |
| 16 | 16 | Replacement of packing of Boiler peep holes. | 16 | 7 | Nos. |
| 17 | 17 | Providing pin of spring/hanger supports of feed line,steam lines. | 17 | 7 | Nos. |
| 18 | 18 | Furnace Ceiling repairing by cutting & welding in Pent House. | 18 | 25 | Mtrs |
| 19 | 19 | Welding of Hot & cold primary & secondary air ducts. | 19 | 80 | Mtrs |
| 20 | 20 | Alignment and fixing of supports of hot air ducts. | 20 | 4 | Nos. |
| 21 | 21 | Two coat hard facing (One horizontal & one vertical at the distance of ½” on any equipment). | 21 | 6 | RM |
| 22 | 22 | Cleaning & disposal of fly ash foreign materials from the following. | 22 | ||
| 23 | 22.01 | Wind box (Right) | 23 | 4 | Nos. |
| 24 | 22.02 | Wind box (Left) | 24 | 4 | Nos. |
| 25 | 22.03 | Cat house (Front & rear) | 25 | 4 | Nos. |
| 26 | 23 | Removing fly ashes its disposal to zero meter level boiler side from boiler heating area. | 26 | ||
| 27 | 23.01 | Removal fly ash from economizer chamber at 3 M/L. | 27 | 4 | Nos. |
| 28 | 23.02 | Removing fly ash from the gallery between Re-heater & arch tubes. | 28 | 4 | Nos. |
| 29 | 23.03 | Removing fly ash form the gallery between exit super heater &hanger tubes of convective super heater. | 29 | 4 | Nos. |
| 30 | 23.04 | Removing fly ash form second pass. | 30 | 4 | Nos. |
| 31 | 23.05 | Removing fly ash from the gallery between platen super heater and cold reheat headers in pent house | 31 | 4 | Nos. |
| 32 | 23.06 | Removing fly ash from the galleries in left & right of the pent house,between water tubes & skin cashing. | 32 | 4 | Nos. |
| 33 | 23.07 | Removing fly ash from the gallery between cold reheat and got reheat header in pent house. | 33 | 4 | Nos. |
| 34 | 24 | Cleaning of riser tube economizer water wall & connecting tubes of super heaters by means of wire brush and old clothes. | 34 | 2 | Nos. |
| 35 | 25 | Alignment and providing proper supports to rods of buck stay furnace economizer & super heater zone from 16 M/L to 48 M/L in boiler. | 35 | 6 | Nos. |
| 36 | 26 | Rectification of guide pipe & plates of hydraulic seals at all the four sides above bottom ash hopper. | 36 | 15 | Nos. |
| 37 | 27 | Rectification of hinge supports of wind box of boiler at 19 M/L (L&R). | 37 | 4 | Nos. |
| 38 | 28 | Rectification of Tie Rods in Pent House of 48 M/L side at boiler. | 38 | 4 | Nos. |
| 39 | 29 | Servicing & repairing of hanger supports of Main steam, cold reheat,hot reheat, feed line and down corners of boiler form 13 M/L to 54 M/L. | 39 | 7 | Nos. |
| 40 | 30 | Making coal compartment assly by making coal nozzles with seal plate & adjustable seal nozzle SS tips. | 40 | 10 | Nos. |
| 41 | 31 | Replacement of worn out and damaged railing of boiler from zero meter to 54 M/L by old & used economizer tubes. | 41 | 40 | Nos. |
| 42 | 32 | Repairing/replacement of corner attachment of water wall and super heater. | 42 | 3 | Nos. |
| 43 | 33 | Alignment of buck stay beam (Horizontal & Vertical) from 8 M/L to 48 M/L. | 43 | 4 | Nos. |
| 44 | 34 | Strengthening & alignment of scanner angles of furnace & 2nd pass. | 44 | 7 | Nos. |
| 45 | 35 | Cleaning & disposal of fly ash and foreign material to ‘0’ meter. | 45 | ||
| 46 | 35.01 | From Dog House | 46 | 2 | Nos. |
| 47 | 35.02 | Above furnace top and inside Pent House. | 47 | 2 | Nos. |
| 48 | 35.03 | Below drum inside the Pent House. | 48 | 2 | Nos. |
| 49 | 36 | Servicing/Overhauling of fill pump. | 49 | 2 | Nos. |
| 50 | 37 | Shifting washing pump from 10th Unit Boiler 16 mtr. corner no.1 to12th Unit Boiler 16 mtr. corner no.1 & then after completion of work again shifting to 10th Unit. | 50 | 4 | Job |
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