余热回收的污水源热泵系统  

Research on Sewage Source Heat Pump System Based on Waste Heat Recovery

作　　者：魏鹏[1] 王洪利[1] 贾宁[1] 薛贵军[1,2] 

机构地区：[1]河北联合大学冶金与能源学院,河北唐山063009 [2]河北联合大学智能仪器厂,河北唐山063000

出　　处：《河北联合大学学报（自然科学版）》2015年第1期1-4,共4页Journal of Hebei Polytechnic University:Social Science Edition

基　　金：河北联合大学2011年大学生创新性实验资助项目(X2011070)

摘　　要：城市污水具有流量和平均温差波动不大特点。冬季污水管道内平均温度高于外界环境温度,夏季污水管道内平均温度低于外界环境温度。基于上述特点,设计了用于污水余热回收的热泵-污水耦合系统。考虑到臭氧层破坏ODP和温室效应GWP,分别开发了带节流阀和带膨胀机的环保制冷剂R744、R134a和R1234yf的污水源热泵系统平台并进行了性能分析。为实现中低温余热回收进而提高热泵性能提供资料。Urban wastewater has the characteristics of steady fluctuation flow rate and average temperature. Average temperature of sewage pipeline in winter is higher than the environment temperature,and average temperature in summer below the environment temperature.Based on the above characteristics,the cou-pling system of sewage waste heat recovery and heat pump was designed.Considering the problem ODP andGWP,the sewage-source heat pump platform with throttle valve and expander of refrigerants R744, R134a and R1234yf were developed,and the performance analysis was carried out.Some fundamental data were obtained for achieving low temperature waste heat recovery and improving the performance of heat pump.

关 键 词：污水源热泵 环保制冷剂 节流阀 膨胀机 性能分析 

分 类 号：TB612[一般工业技术—制冷工程]