蒸汽喷射泵扩压器渐缩段内气体速度的研究

Research on Velocity of Gases in the diffuser of Steam Eject Pump

根据动能转换为压力能的过程,以及蒸汽和被抽气体(如空气)的混合过程对扩压器中气体流动进行了热力学计算,给出了扩压器渐缩段工作蒸气与被抽气体混合过程中任意断面流体的即时速度的计算方法,并且给出了两种流体混合的速度变化规律和极限速度。

Thermodynamic calculation was done of gases flowing in diffuser according to kinetic energy conversing into pressure one,and the process caused by steam mixing pumped gases.The writer proposed a method to calculate gases flowing velocity on any section during the mixing proscess of working steam with pumped gas.The law of gases′ velocity changing and its ultimate velocity were also given.