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由我国自行设计、试制的四米五液压全调节大型轴流泵,安装在江苏省北部淮安县抽水站,已经顺利投入运行. 该大型轴流泵机组的水泵叶轮直径为4.5米,设计扬程7米,流量60米~3/秒,转速100转/分,配套同步电动机、容量5000千瓦.机组采用立式结构,机、泵同轴直联.泵进口为肘形进水流道,出口为虹吸出水流道.在出口流道驼峰处每台泵装有两台真空破坏阀,可以抽真空帮助机组起动;停机时,提前放进空气截断虹吸管中的水流,使机组很快停机.
The self-designed and trial-manufactured four meters and five hydraulic fully-regulated large-scale axial-flow pump have been successfully put into operation in the pumping station of Huaian County in the northern part of Jiangsu Province.The diameter of the pump impeller of this large-scale axial-flow pump unit is 4.5 meters and the design lift 7 Meters, flow of 60 meters ~ 3 / s, speed of 100 rev / min, supporting synchronous motor, capacity of 5000 kilowatts.Use of vertical structure, machine, pump coaxial direct connection. Pump inlet elbow flow channel, the outlet is siphon Outlet channel. At the outlet hump hump with two vacuum vandalism valve, you can vacuum to help the unit start; downtime, early into the air truncated siphon water flow, the unit downtime.