小型单管管内沸腾/冷凝试验装置的搭建及初步研究

Construction of the Single Intratube Boiling/Condensing Test Platform and Preliminary Experimental Research

搭建单管管内沸腾/冷凝试验装置,旨在响应世界能源紧张问题,测试制冷系统中主要换热原件的换热性能,为各种新开发管型换热器、可替代制冷剂的制冷效能的研究提供平台。该实验装置可对试验段管型进行规范性替换,方便对不同结构尺寸的强化换热管进行研究;此外,制冷循环以隔膜泵代替压缩机,使研究不同类制冷剂在无润滑油干扰下的换热性能成为了可能。经优化设计后,实验台具有环境要求简单、制冷剂充注/更换方便、实验操作方便等优点。运用该装置进行蒸发校核试验,对实验数据进行分析,充分证实了实验装置的可行性。

The single intratube boiling/condensing test platform is set up to respond to the world energycrisis, test the heat transfer performance of the original heat exchanger components in the refrigerationsystem, and provide the platform for studying various tube type heat exchanger and the newly developedalternative refrigerant. Tested tube can be replaced in the experimental apparatus to study dijferentstructure size of the heat exchange tube; in addition, the refrigeration cycle with diaphragm pump insteadof the compressor makes the possible research on heat transfer performance of the same kind of refrigerantwithout lubricating oil. After feasible optimization design the platform achieves the advantage of the simpleexperiment environment, the easy charging/replacing refrigerant, the convenient operation and so on. Toconfirm the feasibility of the experiment device, the evaporation verification and test are obtained by usingthe device and analyzing the experimental data.