冷却塔逆用吸热做热源塔技术研究现状

基于冷却塔逆用吸热理论，在空气源热泵和水/地源热泵基础上发展起来了一种新型热泵--热源塔热泵，它能克服蒸发器的结霜问题，且不受地质条件的约束，具有良好的应用前景，但对热源塔热泵的研究相对滞后，影响了其快速发展。为此，本文从结构、传热传质、吸热和防冻工质等方面对现有冷却塔逆用吸热做热源塔的研究进行了综述。指出对热源塔传热传质特点、基本数学模型和热源塔吸热性能随环境条件和运行参数的变化规律的研究比较充分，能够指导热源塔的实际应用；溶液漂失是开式热源塔大规模应用必须要解决的问题，优化闭式热源塔中翅片管换热器的结构是未来研究的重点，同时还需关注先进除霜和抑霜技术在闭式热源塔中应用的可行性。本文的阐述有望为热源塔热泵技术的发展、革新和推广发挥积极的指导和参考作用。

Research progress on cooling tower reversibly used as heat source tower

Heat source tower (HST) heat pump, a novel heat pump derived from the theory of cooling tower reversibly used, develops very fast with favorable prospect on the basis of air and water/ground source heat pump in past decades. HST heat pump overcomes the evaporator frosting of air source heat pump and avoids geological condition constraints of water/ground source heat pump. However, the related investigations on HST heat pump are hysteretic, which limit the development and application of HST heat pump. Thus, the present work reviews the research on HST from structure, heat and mass transfer, endothermic performance and antifreeze solution. Finally, the conclusions indicate that, firstly, the studies on heat and mass transfer, mathematical model and relationships among endothermic performance, weather and operating condition of HST are basically sufficient to guide the application of HST. Secondly, the solution drifting loss is the problem to be solved in the large scale application for the open type of HST. Lastly, optimizing the structure of finned tube heat exchanger in close type of HST is the focus of future research. Meanwhile, it is prerequisite to pay more attention to the feasible application of the advanced defrosting technology in close type of HST. It is anticipated that this review will play an instructive role and act as a reference for the development, innovation and promotion of HST heat pump.