【正文】 .................................................................... 69 1 February 2020 Appendix 1 Technical Specification 1 General This contract attachment only applies to the Boiler Feed Water Pump Turbine (BFPT) equipment of XXXX Power Plant 41000MW Ultrasurpercritical units, and it provides technical requirements for the function design, structure, performance, installation and test of this equipment. The technical requirement in this contract attachment does not specify all technical requirements and applicable standards. The Seller will provide a set of high quality product and corresponding service that meets this contract attachment and the listed standards. 2 Project overview XXXX Power Plant is situated in Yuhuan County, Zhejiang Province. The plant39。 the rated voltage for motor rated over 200kW 2 February 2020 Power supply frequency: 50 Hz DC control power supply voltage: 110V DC dynamic power supply voltage: 220V Instrument pressed air condition: Dry and oilless, pressure range: ~(g). System overview and related equipment Each unit of this project is equipped with three feed water pumps, and turbine driven feedwater pump is 2x50% and motor driven feedwater pump unit is 1x25%BMCR. Feedwater booster pump of turbine driven feedwater pump unit are driven by the same turbine with gearbox(supplied by pump contractor). Feedwater booster pumps of motor driven feedwater pump unit are driven by the same motor. Feedwater pump steam turbine uses extraction steam as normal working steam source and standby and startup uses cold reheated steam or auxiliary steam. Boiler used for this project is the ultrasupercritical boiler produced by Harbin Boiler Plant Co. Ltd. Turbine used for this project uses the turbine produced by Shanghai Turbine Co. Ltd. Turbine type: Technical specification of turbine driven feedwater pump ((2x50%) Type of turbine driven feedwater pump: Horizontal, Centrifugal, multistage, barrel/12X12X145stgHSB Manufacturer of turbine driven feedwater pump: Ebara Corporation, Japan Technical specification of turbine driven feedwater pump: 3 February 2020 Unit operation condition Description of item Unit Maximum operation condition point Summer operation condition 100%TMCR load condition 75%VWO flow condition 50%VWO flow condition 25%VWO flow condition Booster feedwater pump inlet water temperature Booster feedwater ℃ MPa pump inlet pressure Booster feedwater pump inlet density Booster feedwater pump inlet flow rate Booster feedwater pump efficiency kg / m3 t/h % 1640 Booster feedwater pump shaft power kW (including GB loss) (including GB loss) (including GB loss) (including GB loss) (including GB loss) (including GB loss) Feedwater pump main pump tap flow Feedwater pump main pump outlet flow rate t/h t/h 90 N/A 1550 N/A N/A N/A N/A Feedwater pump main pump tap total pressure Feedwater pump main pump outlet total pressure MPa MPa N/A N/A N/A N/A N/A 1 February 2020 Unit operation condition Description of item Unit Feedwater pump unit MPa total head Feedwater pump main kW pump shaft power Feedwater pump main % Maximum operation condition point Summer operation condition 100%TMCR load condition 75%VWO flow condition 50%VWO flow condition 25%VWO flow condition pump efficiency Feedwater pump main pump rotating speed Total shaft power consumed by pump unit r/min kW 6000 5960 5855 2 February 5190 4160 2020 3070 XXXX Power Plant 4 1000MW Ultrasupercritical Unit Feed Water Pump Turbine Contract Document Volume 3 Technical Specification The first critical speed of turbine driven feedwater pump is 10,000 r/min, and the second critical speed is 15,000 r/min.(Wet condition) Limit speed of turbine driven feedwater pump is 6600 r/min(110%) and minimum turning speed is 17 r/min. Rotating direction of turbine driven feedwater pump is CCW (Counter Clockwise) (viewing from turbine to feedwater pump). Lube oil of turbine driven feedwater pump is supplied by BFPT, and its requirement is as follows: Lube oil brand: ISO VG46(main turbine lube oil brand ISO VG46) Lube oil quantity: 280l/min(single turbine driven feedwater pump) Lube oil pressure: Connection pipe diameter: mm(return) Connection position: .(supply) Steam source and its parameters which can be provided by the Buyer For inlet parameters of LP steam (main turbine four stage extraction) and HP steam (cold reheated steam), see the attached heat balance diagram. The following table is steam source parameter table: Load Steam source Maximum operation Summer operation 100% TMCR1 Item condition (VWO) condition Load c