往复式真空泵平衡通道的数学模型及实验验证

Mathematics Model of Reciprocating Vaccum Pump Balance Pipe and Its Experiment Verification

往复式真空泵是获得真空的主要设备之一,平衡通道是它的很重要组成部分,它对真空泵的工作效率和能量消耗有很大影响,且流动复杂,以前对它的设计都采用经验的方法。本文建立了平衡通道内气体流动的数学模型,采用数值方法对它进行了求解,对它的流动进行了精确计算分析,实验证明:结果正确,对真空泵平衡通道的设计提供了一种可靠的方法。

Reciprocating pump is one of the main equipments to acquire vaccum. Balance pipe is its important part, it largely affects the working efficiency and energy consumption of vacuum pump. Its flow is very complicated. Mathematics model of gas flow in balance pipe is set up and resolved in this paper. Experiments show that this model is correct and gives a reliable method of accurately designing the vacuum pump balance pipe.