提灌站水泵设计选型研究及典型案例分析

Research on the Pump Design and Selection of Pump Stations and Typical Cases

提灌站是保障丘陵地区农业灌溉用水的重要基础设施。水泵是提灌站系统组成的核心设备,其设计选型是否合理直接影响水泵寿命、投资成本以及建成后的稳定、安全、低耗运行。针对管道沿线具有多出水口的提灌站,选择了两个具有代表性的典型工程案例,进行了工程现状和存在问题的详细介绍。通过水泵选型设计及分析可知,当管道沿线存在多出水口情况时,可优先考虑采用水泵变频运行方案解决不同出水口的供水问题;当管道沿线两个出水口扬程相差较大但需水流量相差不大,采用水泵变频方案不能满足供水要求时,可采用两台水泵串联运行的方案解决供水问题。

Pumping Station is one of the important infrastructures guaranteeing the agricultural irrigation.Pump is the core equipment of the pump station system,whether the design and selection of pumps is reasonable or indirectly affects the life of pumps,investment cost and stable,safe and low-consumption operation of the pump stations after construction.In this paper,for pump station with multiple outlets along the pipeline,two representative typical engineering cases of status and problems are introduced in detail.It is known through the analysis of pump selection design,when there are multiple outlets along the pipeline,the pump frequency conversion operation scheme can be preferred to solve the water supply problem for different outlets.When the head difference for two outlets along the pipeline is large,but the difference of flow is small,pump frequency conversion scheme cannot meet water supply requirements,two pumps in series can be used to solve the problem of water supply.