混合工质在地热热泵系统中的实验研究

Experiment of the geothermal heat pump system with a mixed working fluid

针对以 40～ 45℃地热尾水为低温热源的热泵系统 ,作了大量的实验研究。首先 ,在该系统中采用了循环性能较好的低环害混合工质 ,以达到实际运行和环保要求 ;其次 ,根据不同的冷凝器水流量和进口水温 ,总结得出了大量稳定工况实际样本 ,绘制了不同流量和水温下的COP值曲面 。

Describes the research in a large scale of the system for using the geothermal tail water at 40 to 45 ℃ in which an environment-friendly mixture working fluid is adopted to realize operation in actual states and meeting the environment requirements, and obtains a large number of samples for actual steady operation and the surfaces representing the relationship of COP with flow rate and water temperature of the condenser are drawn, providing a theoretic basis for the intelligent control in its practical applications.