第二类吸收式热泵回收地热余热的应用研究  

Research Of The Absorption Heat Transformer For Recovering The Geothermal Waste Heat

作　　者：黄涛[1] 董海虹[2] 

机构地区：[1]中国建筑科学研究院空调所,北京100013 [2]中国科学院电工研究所,北京100080

出　　处：《制冷与空调（四川）》2008年第1期43-48,共6页Refrigeration and Air Conditioning

摘　　要：通过对溴化锂第二类吸收式热泵系统的模拟计算,分析研究了利用第二类吸收式热泵技术回收地热余热方案的可行性。该方案是以50℃地热尾水为驱动热源,通过第二类吸收式热泵系统的热力循环,将供热二次循环系统回水(45℃)提升到65℃～70℃,以达到地热余热回收再利用的目的。通过对供热系统中的地热尾水排放温度、冷却水进口温度、循环热水出口温度的取值范围对系统性能影响规律的讨论及系统升温特性图的建立,得出了该方案理论可行的结论,并同时讨论了其它参数对系统性能的影响。The feasibility of the scheme, utilizing the absorption heat transformer to recover the geothermal waste heat, was discussed by simulating the thermodynamic cycle of the LiBr/H2O absorption heat transformer, The waste geothermal water at 50℃ was used to heat hot water from 45℃ to 65-70℃ for recycling, Through the simulation, the span of 3 critical system parameters was obtained, which were the waste geothermal water outlet temperature, the cooling water inlet temperature and the hot water outlet temperature, and the system heating-up character diagram was established. The rationality of the span and the effects of the 3 temperatures on the system performance were analyzed in detail. The results of analysis showed that the scheme was feasible theoretically. The effects of variables as some other important parameters on the system performance were also analyzed.

关 键 词：第二类吸收式热泵 地热余热 可行性 模拟 

分 类 号：TK52[动力工程及工程热物理—热能工程]