节能2025，Vol.44Issue(4)：131-134,4.DOI:10.3969/j.issn.1004-7948.2025.04.034
第二类吸收式热泵蒸汽压力影响因素模拟分析
Simulation analysis of the influencing factors of steam pressure of the second type of absorption heat pump
杨光耀 1匡胜严 2周如愿 2陈榆 2杨曙光2
作者信息
- 1. 长沙创智低碳科技有限公司,湖南 长沙 410001
- 2. 远大空调有限公司,湖南 长沙 430138
- 折叠
摘要
Abstract
Based on the principle of the second type of absorption heat pump,a mathematical model of the second type of absorption heat pump is established,and the influencing factors of the steam pressure produced are analyzed.The results show that due to the corrosive property of lithium bromide solution at high temperatures,its working temperature should be controlled below 165℃,and under this condition,the maximum steam production pressure of the second type of absorption heat pump is 0.44 MPa.The steam pressure is closely related to the absorption pressure in the unit and the concentration of the solution.The higher the absorption pressure and the concentration of the LiBr solution,the higher the steam pressure produced.Reducing the inlet temperature of the residual hot water,increasing the temperature difference between the inlet and outlet of the residual hot water,and the temperature of the cooling water will all cause a decrease in the concentration and absorption pressure of the LiBr solution,thereby reducing the steam pressure.Under the same conditions,the countercurrent flow of the residual hot water(first in the evaporator and then in the generator)reduces the solution concentration while increasing the absorption pressure.However,the increase in absorption pressure is more significant,and the pressure of the steam produced is slightly higher than that of the co-current flow.关键词
第二类吸收式热泵/溴化锂溶液/蒸汽压力/Matlab模拟Key words
second type of absorption heat pump/LiBr solution/vapor pressure/Matlab simulation分类
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杨光耀,匡胜严,周如愿,陈榆,杨曙光..第二类吸收式热泵蒸汽压力影响因素模拟分析[J].节能,2025,44(4):131-134,4.
