公共建筑用空气源热泵热水机组初探

Preliminary Study on Air-source Heat Pump Water Heater for Public Buildings

为了满足快速发展的公共建筑等大型低温热水用户的用热需求,迫切需要研究和发展适用的卫生热水制备技术,用于取代传统的化石燃料锅炉和电锅炉,并改善高位能的使用。作为一种高位能使用的典范,空气源热泵热水机组由于其节能和环保特性,产业化势在必行。本文在分析传统空气源热泵热水器研究概况的基础上,针对其不足,提出了一种大型蓄能式空气源热泵热水机组新流程。该流程不仅具有常规空气源热泵热水机组的优点,而且还能起到电力的削峰填谷作用,利用夜间低谷电,进一步降低运行费用,同时拥有更合理的除霜方式、提供免费供冷等突出的优越性。这势必带动热泵热水机组的产业化发展。

In order to satisfy the fast developing demand situation of large domestic hot water user, such as public buildings, it is an urgent requirement to research and develop the feasible domestic hot water preparation technologies, which are to replace the traditional fossilfuel boilers and electric boilers and improve the use of high grade energy. In addition, it is imperative of the industrialization of air-source heat pump water heater due to energy-saving, environment protection and reasonable use of energy. In this paper, the general research situation of air-source heat pump water heater was analyzed and a new system of large-scale air-source heat pump water heater with energy storage was proposed. This new system not only had the advantages of traditional air-source heat pump water heater, but also could satisfy the peak-shift of electrical demand, reduce the operation cost through utilizing the low ebb electricity during nighttime, hold more reasonable mode for defrosting and provide free cooling. Because of its prominent advantages, the new air-source heat pump water heater would drive the industrialization of heat pump water heater.