流体机械

2004, (05) 20-24

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气体喷射压缩器变工况特性的理论研究
Study of the Variational Condition Characteristic of the Gas Ejector

韦红旗
WEI Hong-qi (Southeast University, Nanjing 210096,China)

摘要(Abstract):

 利用气体喷射压缩器几何结构参数、混合室动量方程、流动连续性方程、质量守恒方程以及气体动力函数等 ,补充推导出了工作压力变化对喷射系数、温度比变化对喷射系数的影响关系式 ,并以某一蒸汽喷射压缩器为实例 ,通过计算补充提供了工作压力、引射压力、工作温度、引射温度单因素变化时的变工况特性曲线 ,对于进一步掌握这些因素变化对气体喷射压缩器运行性能的影响规律以及对气体喷射压缩器的合理运行与调整很有意义。
The relational expressions, which are in relation to the impact of change in operating pressure and temperature ratio on jet coefficient, has been deduced and supplemented by means of shape parameter of the gas ejector, momentum equation of mixing chamber, flow continuity equation, mass conservation equation and gas dynamic function, and so on. Meanwhile, the characteristics of variational conditions about the operating pressure, suction pressure, operating temperature and suction temperature have been supplemented by taking example for steamer ejector, which make the variational conditions characteristics of the gas ejector more consummate and offer guidance to the rational operation and regulation of gas ejector.

关键词(KeyWords): 喷射器;变工况特性;研究
ejector; variational condition characteristic;study

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 韦红旗
WEI Hong-qi (Southeast University, Nanjing 210096,China)

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