基于空气能量回收的热源塔溶液再生系统节能性分析  

Energy-saving analysis of solution regeneration in heat-source tower based on recovery of air energy

作　　者：文先太[1] 梁彩华[1] 刘成兴[1] 张小松[1] 

机构地区：[1]东南大学能源与环境学院,江苏南京210096

出　　处：《化工学报》2011年第11期3242-3247,共6页CIESC Journal

基　　金：'十二五'国家科技支撑计划项目(2011BAJ03B05);江苏省自然科学基金重点项目(BK2010029);东南大学科技基金项目(KJ2010397)~~

摘　　要：对热源塔热泵系统进行了分析,指出了其溶液在冬季运行时存在再生问题。考虑到热源塔溶液吸湿性不强的特点,提出了一种基于空气能量回收的热源塔溶液再生装置,并对该系统再生性能进行了理论分析。对压缩机、换热器、节流阀、溶液再生器等各个系统部件建立了数学模型,并对整个溶液再生系统进行了模拟计算,计算结果表明:随着冷凝器进口溶液温度从18℃升高到28℃,再生量呈现直线上升趋势,从17.7kg.h-1升高到26.7kg.h-1;系统COP几乎保持不变,维持在4.3左右;潜热百分比从68.3%升高到82%;再生潜热COP从2.8升高到3.5。与传统再生相比,该装置需要消耗的能量更少,再生效率更高,节能潜力较大。The heat-source tower heat pump system was analyzed and the problem of solution regeneration in winter was presented. Considering the characteristics of low moisture absorption of the solution, a new regeneration design of heat-source tower based on recovery of air energy was proposed, and theoretical analysis of regeneration performance was conducted. Mathematical models of the components, including compressor, heat exchanger, expansion valve and regenerator of solution were built and the whole regenerative system was simulated. The results showed that with the increase of inlet solution temperature in the condenser from 18℃ to 28℃, the regeneration rate increased linearly from 17.7 kg . h-1 to 26.7 kg . h-1 , the COP of the system kept constant at 4.3, the latent heat percentage increased from 68.3% to 82%, and the COP of latent heat increased from 2.8 to 3.5. Compared with the traditional regeneration system, this system consumed less energy, and had higher energy efficiency, promising huge energy- saving potential.

关 键 词：能量回收 吸湿性 潜热百分比 热源塔 

分 类 号：TK123[动力工程及工程热物理—工程热物理]