内压缩转子式油气混输泵输入功率的计算与分析

张生昌; 杨琳; 邓鸿英; 马艺; 王炤东

doi:10.13433/j.cnki.1003-8728.2015.0508

内压缩转子式油气混输泵输入功率的计算与分析

doi: 10.13433/j.cnki.1003-8728.2015.0508

1.
浙江工业大学机械工程学院, 杭州 310014

基金项目:

国家自然科学基金项目（51406183）资助

详细信息

作者简介:
张生昌（1956-），教授级高工，研究方向为多相流泵产品的创新与开发，zsc666@zjut.edu.cn

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出版历程
- 收稿日期: 2013-03-21
- 刊出日期: 2015-05-05

Calculating and Analyzing Input Power of Oil-gas Multiphase Pump of Internal Compression Rotor

1.
College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China

摘要

摘要: 通过分析内压缩转子式油气混输泵工作原理及其内压缩过程，得出了转子泵输入功率P、附加输入功率Ps及其无内压缩过程泵输入功率Pt的理论计算公式，并且通过实例计算分析得出不同内压缩比λ（分别改变吸入压力p1和排出压力pd）和气液比τ对该新型内压缩转子式油气混输泵P、Ps/P及（Pt-P）/Pt的影响规律。当λ一定时，随着τ的增大，P减小，Ps/P和（Pt-P）/Pt增大；改变λ时，P与λ的关系较复杂，Ps/P始终随着λ的增大而减小，（Pt-P）/Pt随着λ的增大而增大，改变p1时，P变化地更快，而改变pd时，Ps/P变地更快，改变p1 和pd对（Pt-P）/Pt 的影响不大；当τ趋近于1.0时，即纯气工况条件下，P、Ps/P、（Pt-P）/Pt都会发生突变。
- 转子式油气混输泵 /
- 输入功率 /
- 内压缩比 /
- 气液比
Abstract: Analyzing the working principles and internal compression processes of an oil-gas multiphase pump, its theoretical calculation formulas is deduced, its input power P, its additional input power Ps and the input power Pt of external compression pump. With an actual example, the changes in P, Ps/P and (Pt -P)/Pt of pumps are summarized under the internal compression ratio λ (by changing the suction pressure p1 and the discharge pressure pd) and the gas-liquid ratio τ. When λ is constant, P decreases, Ps/P and (Pt-P)/Pt increase with τ increasing. If λ changes, the relationship between P and λ is more complicated; Ps/P always decreases with λ increasing and (Pt-P)/Pt behaves in an opposite way. P changes faster when p1 changes in relation to the changing pd; Ps/P behaves in an opposite way; (Pt-P)/Pt has little change. Once τ approaches 1.0, P, Ps/P and (Pt-P)/Pt mutate.
- gas-liquid ratio /
- input power /
- internal compression ratio /
- natural gas

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