往复泵气液均相流有效功率计算方法的研究  

Research on the Calculating Method of Effective Power of the Reciprocating Pump of Multiphase Flow

作　　者：董世民[1] 

机构地区：[1]燕山大学,河北秦皇岛066004

出　　处：《流体机械》2003年第12期21-24,共4页Fluid Machinery

摘　　要：根据往复泵的理论循环指示图 ,分别建立了气体按等温过程和多变过程压缩和膨胀时 ,气液均相流往复泵有效功率与有效扬程的计算公式。同时根据气液均相流能量平衡方程 ,建立了气液均相流往复泵有效功率与有效扬程的计算公式。两种方法所建立的有效功率与有效扬程的计算公式完全相同。分析结果表明 ,在气液均相流条件下 ,往复泵的有效功率由两部分组成 :一是对液体作功所消耗的功率 ;二是对气体作功所消耗的功率 ,这部分功率取决于气体的压缩与膨胀过程。On the assumption that two phase fluid of gas and liquid flows in uniform flow pattern, and that gas expands on the isothermal or polytropy process, theoretical cyclic indicating figure of the pump is drawn. A new calculating formula of the effective power and effective delivery lift of the reciprocating pump of multiphase flow is set up by the cyclic indicating figure of the pump.The effective power consists of two parts when the fluid which is transported by the pump is the mixture of gas and liquid, one is the power consumed by compressing the liquid and another is the power consumed by compressing the gas,which depends on changing process of gas expanding and compressing.

关 键 词：往复泵 气液两相流 有效功率 有效扬程 计算 

分 类 号：TH321[机械工程—机械制造及自动化]