化工学报2024，Vol.75Issue(6)：2134-2142,9.DOI:10.11949/0438-1157.20240086
液氨喷射泵热力性能的计算分析
Calculation and analysis of thermal performance of liquid ammonia ejection pumps
摘要
Abstract
In order to ensure the normal operation of the refrigeration system with a falling-film evaporator,a liquid ammonia ejection pump is used as the circulating equipment for liquid ammonia in the evaporator.Based on the gas kinetic function method,the performance calculation program of the ejection pump is prepared,the thermal performance of the ejection pump in the refrigeration system is analyzed,and the influence of the operating parameters on the performance of the ejection pump is studied.The results show that,keeping the ejection pressure and outlet pressure unchanged,the higher the working fluid pressure,the larger the entrainment ratio;the lower the working fluid temperature,the smaller the entrainment ratio.Keeping the working pressure and outlet pressure unchanged,the higher the saturated ejection pressure is,the larger the entrainment ratio is,and the closer the value of the ejection pressure is to the value of the outlet pressure,the more significant the change of the entrainment ratio is.The saturated injection liquid ammonia pressure remains unchanged,and the closer the outlet pressure is to the injection liquid ammonia pressure,the more obvious the injection coefficient increases with the increase of the working liquid ammonia pressure.关键词
氨/喷射泵/动力学理论/热力学性能/喷射系数Key words
ammonia/ejection pump/kinetic theory/thermal performance/entrainment ratio分类
能源科技引用本文复制引用
杨艳,郭亚丽,于硕文,潘泊年,沈胜强..液氨喷射泵热力性能的计算分析[J].化工学报,2024,75(6):2134-2142,9.基金项目
国家自然科学基金重点项目(51936002) （51936002）
