基于LXI总线的压气机试验台退喘试验系统研制

Studies About Compressor Surge Test System Based on the LXI bus

压气机喘振是气流沿压气机轴线方向发生的低频率、高振幅的震荡现象,会导致压气机部件强烈机械振动和热端超温,会在短时间内造成部件或整机严重损坏,因此压气机试验台建设时退喘系统建设尤为重要;介绍了一种基于LXI总线的压气机试验台退喘试验系统的实现方法,阐述了该系统的主要特点和优势;试验中,对压力、温度、电压参数进行采集和记录,然后通过判喘准则,进行判断,并快速发出控制信号,实现压气机快速退喘;通过验证,该系统在压气机发生喘振时能够迅速发出信号,实现压气机快速退喘,达到了建设的目的,可有效防止压气机喘振对试验部件造成损坏。

Compressor surge is a low--frequency and high--amplitude shock phenomenon of the air that along the axial direction of the compressor, it will cause strong mechanical vibration of the compressor part and over--temperature, it will cause damage to the parts or the whole in a short time. So the surge test of the compressor is particularly important. This article introduced a surge test system that based on the LXI bus, and describes the main features and advantages of this system. In the test, acquired and recorded the voltage, temperature and pressure signal. ]t is validated that the system can send the signals quickly when the surge occurred, reaching the purpose of the construction and can effectively prevent the damage to the test components.