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1 前言水泵效率测试是工业生产中不可缺少的手段之一。高压水泵是工矿企业特别是油田、电厂等单位的主要耗电设备,水泵接近大修周期时,测定其效率是进行预检最简便易行的方法,根据效率下降程度以确定停泵大修的理想时间,从而避免盲目、过分检修或由于另部件过度磨损,水泵低效率运行而不及时检修的现象。水泵效率的测试与计算有两种方法,即流量法与热力学法,下面分
1 Introduction Pump efficiency test is one of the indispensable means in industrial production. High pressure water pump is the main power consumption equipment of industrial and mining enterprises, especially oilfields, power plants and other units. When the pump approaches the overhaul period, its efficiency is the easiest way to carry out preflight. According to the degree of efficiency decrease, it is an ideal time to determine overhaul , So as to avoid blind, overhaul or due to excessive wear and tear on another component, the pump runs inefficiently without timely maintenance of the phenomenon. There are two ways to test and calculate the efficiency of a pump, namely the flow method and the thermodynamic method, the following points