摘 要:随着社会经济的发展，能源消耗持续上升，能源资源及能源安全备受关注。我国的能源效率与先进国家相比存在很大差距，节能降耗空间大，应采取有力措施，充分挖掘节能潜力。
两相闭式热虹吸管是热管的一种特殊类型，与普通热管相比，两相闭式热虹吸管内部没有吸液芯，只由管壳和内部工质构成，由于其制造方便、结构简单、成本低廉、传热性能好以及工作可靠度高等优点，应用领域越来越广。
本文将两相闭式热虹吸管换热器与普通的升温型冷冻除湿机结合在一起，构造了新型的除湿系统——热虹吸管除湿系统。使空气通过热虹吸管蒸发段预冷，降低表面式冷却器进口空气的干球温度，相应地提高空气的相对湿度，增强表面式冷却器的单位功率除湿量，再通过热虹吸管冷凝段再热，得到温度较高的干空气。
本文实验研究了热虹吸管除湿机的除湿性能，根据国家标准对多种工况下热虹吸管除湿机与普通升温型冷冻除湿机进行了性能测试，分析了进口空气干球温度、进口空气湿球温度以及空气流量对除湿机性能的影响，比较分析了热虹吸管除湿机与普通升温型除湿机的除湿性能。
结果表明：空气流量对热虹吸管除湿机的除湿性能影响较小，而进口空气干球温度和进口空气相对湿度对热虹吸管除湿机的除湿性能影响则较大；在其他条件不变的情况下，热虹吸管除湿机的除湿性能随着进口空气干球温度或者进口空气相对湿度的增大而增强；热虹吸管除湿机较普通升温型除湿机的性能大大提升，单位输入功率除湿量最高可提高60.4%。
关键词：热虹吸管，除湿机，单位功率除湿量，节能
Abstract:With the ever-changing socio-economic development, energy consumption continues to rise, energy source and energy safety are widely concern. For our country, there is much room for saving energy and reducing consumption because of the great gap on energy consumption between our country and the advanced countries. So we should take effective measures to dig the potential.
Two-phase closed thermosyphon-based heat pipe is a special type of heat pipe. Compared with ordinary heat pipe heat exchanger (HPHX), the thermosyphon-based HPHX is composed of the shell and the working fluid, but has no internal wick. Because of its convenient manufacture, simple structure, low cost, excellent heat transfer performance and high work reliability, the HPHX’s application is increasing.
In this paper, a new kind of dehumidification system — thermosyphon-based HPHX dehumidification system (HPHXDS), which is a combination of thermosyphon-based HPHX and the ordinary type refrigeration dehumidifier (OTRD), was constructed and experimentally researched. To make the moisture air through the thermosyphon-based heat pipe evaporation section and be pre-cooled, reduces the dry bulb temperature of the import air at the superficial type chiller, enhances the relative humidity of the air correspondingly and improves the moisture removal capability per input power of the surface cooler. The dehumidified air was reheated by the thermosyphon-based heat pipe condensation section and the temperature of the dry air was improved highly.
According to the national standard, the dehumidify performance of the HPHXDS and the OTRD was experimentally researched in a variety of experimental conditions. The influence of the three key parameters of inlet air state, namely: dry-bulb temperature (DBT), relative humidity (RH) and air flow rate was analyzed. The performance difference between the HPHXDS and the OTRD was also studied.
The experimental results showed that the influence of inlet air flow rate on the HPHXDS’s dehumidify performance was very small, but the moisture removal capability was enhanced significantly with the inlet DBT or the inlet RH increasing. The HPHXDS had a better dehumidify capability than the OTRD, and the moisture removal capability per input power was increased by 60.4% at most.
Keyword: thermosyphon-based heat pipe, dehumidifier, moisture removal capability per input power, energy saving
