Complete overhauling of Pressure parts of boiler, drum internal, supply of scaffolding, jet cleaning of first and second pass of boiler, main boiler work of Unit5, 2x250MW, CTPS, Parichha, Jhansi during 30days Overhauling Shutdown.

Amount

Complete external water washing of all floor of Boiler, from roof of pent house to zero meter and internal cleaning of second pass including dust disposal from pant house, dog house and economizer hopper.

Supply and Erection of Cup lock scaffolding system in Ist and IInd pass. 30 days=1 job.

High Pressure Jet Cleaning for Pressure parts with scope of supply of pumps.

High Pressure joints of Carbon /Low alloy steel, T-11, T-22, T91, TPH 347 HP Joints up to 76.1mm tube OD.

Thickness survey of Boiler Pressure parts consisting of 16 Hangers Economizer (lower & upper bank) / 16 Hangers of LTSH and other area of boiler pressure part i.e. water wall, SCW, CRH, HRH, FSH etc.

Metal build up on eroded portion of pressure parts tube caused by Ash / Steam erosion using suitable electrode matching with parent metal composition by Arc and Argon Welding where joint is not required (Size:150mm Length X 35mm Width Depth of erosion up to 2.5mm).

Fin welding work of water wall / steam cool wall.

Installation of SS shielding /cassette baffles in all erosion pro area like in screen water wall, LTSH, Economiser and Extended SCW.

DP test of dissimilar joints and Header Tubes. (DP test Kit shall be in the scope of Contractor).

Repairing of skin casing of first path & second path of penthouse and complete furnace sealing in pent house and dog House. Disposal of ash of penthouse and Dog house in contractor scope.

Overhauling of wall blower and APH blower.

Complete overhauling of all LRSB, 1job= 6 Nos. LRSB.

Complete internal overhauling of Boiler Drum.

Repairing and reconditioning work of inspection window and manholes.

Inspection & Repairing and reconditioning of hanger and its supports at different places at boiler and repairing and reconditioning of horizontal and vertical buckstay of first & second pass.

Overhauling of seal trough, making of scaffolding plate from rear and front side, lifting & alignment and welding of seal trough plates.

Radiography of new H.P joints of boiler tube by remote operated gamma radiography camera, processing of films and interpretation of H.P joints during work in boiler. (Complete work of radiography, processing & submission of Report of 01 no. H.P joint =01 no job)

Radiography of Old H.P joints of boiler tube by remote operated gamma radiography camera, processing of films and interpretation of H.P joints during work in boiler (Complete work of radiography, processing & submission of Report of 01 no. H.P joint =01 no job)

Delay in Scaffolding per day in case of delay from UPRVUNL End (Optional work)

Syndicate Engineers