水系统装置扬程的计算及泵的选型分析

为了提高水系统中水泵的实际运行效率和扬程利用率,降低发动机试验成本,减少能量浪费,以某型发动机台架试验水系统为研究对象,综合考虑了装置静扬程、管路的各种局部损失和沿程损失开展装置扬程的计算。同时根据水系统所需的装置扬程、流量及其变化规律,从泵的参数及其特性曲线入手,进行泵的选型分析,确定合适的泵的类型、台数及连接方式。通过水系统装置扬程的计算和泵的选型分析,结合泵带来的能效利用、工程投入和运行费用等因素,可在满足发动机试验需要的同时实现经济利益最大化,为今后类似水系统工程的设计提供借鉴和指导。

Calculation of Equipment Head and Analysis of the Pump Selection on Water System

In order to improve the actual efficiency and head utilization, reduce the experimental cost and energy consumption, the calculation of equipment head was performed by considering the equipment static head, the local loss and the linear loss of pipeline based on a water system in aeroengine bench test. According to equipment head, flux and its variation on water system, the analysis of pump selection was performed to determine the number, type and connecting mode of the pump, according to the parameter and characteristic curve of the pump. It is not only to meet the needs of the engine test, but also to maximize economic benefits through the calculation of equipment head and the analysis of pump selection, combining the factors of the energy utilization, engineering input, operation cost, etc.