七桥瓮引补水泵站水泵运行性能现场测试

Field test of pump operation performanceof Qiqiaoweng Pumping Station

为获得七桥瓮泵站水泵机组的实际运行工况,便于对水泵机组进行合理优化调度,提高效率,节约能源,实现泵站的优化、经济和稳定运行。采用超声波流量计、Y系列压力表、超声波水位计等测试仪器对水泵机组进行现场流量和扬程测试,获得了水泵实际运行的性能曲线,并与水泵样本曲线进行对比。测试结果表明:现场测试的水泵性能曲线与水泵样本曲线存在较大差异,规划设计扬程下的现场测试流量,仅为设计流量的64%,未能达到规划设计要求。实际性能曲线不能以水泵选型时为依据,而应根据实际运行工况为准。

In order to obtain the actual operating conditions of the pump units of Qiqiaoweng Pumping Station,facilitate reasonable and optimal scheduling of the pump units,improve efficiency,save energy,and achieve optimized,economical and stable operation,ultrasonic flow meter,Y series pressure gauge,ultrasonic water level meter and other testing instruments were used to test the flow rate and head of the pump set,and the performance curve of the pump in actual operation was obtained and compared with the sample curve of the pump.The test results showed that there was a big difference between the performance curve of the pump tested in the field and the sample curve of the pump,and the field test flow under the planning and design head was only 64%of the designed flow,which failed to meet the planning and design requirements.The actual performance curve should be based on actual operating conditions rather than pump selection.