排灌机械工程学报2026，Vol.44Issue(8)：773-779,7.DOI:10.3969/j.issn.1674-8530.24.0175
循环水温对液环泵性能的影响机理分析
Mechanism analysis of influence of circulating water temperature on liquid ring pump performance
摘要
Abstract
To analyze the influence mechanism of the internal circulating water temperature on the per-formance of a liquid ring pump,an experimental platform for testing its fluid-thermal characteristics was established,and the fluid-thermal characteristics of the liquid ring pump were analyzed based on the fluid-thermal coupling numerical simulation method.Results of the analysis show that after the 2BEA-202 liquid ring pump is started during the tests,its inlet vacuum degree,shaft power,and suc-tion capacity gradually reach a stable state after running for about 55 seconds at different circulating water temperatures,but it takes about 560 seconds to reach a thermal equilibrium state.As the circu-lating water temperature increases,the shaft power,suction capacity,and efficiency of the liquid ring pump all show a gradual decreasing trend.When the circulating water temperature increases from 15℃to 60℃,it causes a 5.7%decrease in the suction capacity of the liquid ring pump,and a 2.9%decrease in efficiency.Numerical simulation analysis shows that the gas is continuously compressed from the pump inlet to the outlet,and the specific volume gradually decreases.As the circulating water tempera-ture rises,the p-v curve gradually shifts upward,and the gas gradually expands.Under the condition that the working chamber volume of the liquid ring pump remains unchange,its suction capacity gra-dually decreases.As the circulating water temperature rises,the sum of dissipation work and compression work in the liquid ring pump shows a gradual upward trend,and the pump efficiency gradually decreases.关键词
液环泵/循环水温/流-热耦合/比体积/吸气量/效率Key words
liquid ring pump/circulating water temperature/fluid-thermal coupling/specific volume/suction capacity/efficiency分类
机械制造引用本文复制引用
张人会,冯彦辉,蒋利杰,冯玉稷..循环水温对液环泵性能的影响机理分析[J].排灌机械工程学报,2026,44(8):773-779,7.基金项目
甘肃省重大专项计划项目(23ZDGH001) （23ZDGH001）
中央引导地方专项计划项目(23ZYQA0320) （23ZYQA0320）
甘肃省联合科研基金资助项目(24JRRA834) （24JRRA834）
国家自然科学基金资助项目(51979135) （51979135）
