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电动蓄热式热泵系统由热泵和蓄热槽两部分组成。蓄热槽内装有水,水吸收外界热量,然后供给热泵。夏日夜晚,蓄热槽贮存冷水;冬天夜晚,蓄热槽贮存温水,经过热泵进行热交换,供室内采暖或空调。 最近,国外新开发一种冰蓄热式热泵系统。它能利用贮存的水变成冰时所释放出的热能。这是因为1公斤(0℃)的水结冰时能释放出80大卡的热量,为通常温水蓄热能力的12倍。
The electric regenerative heat pump system consists of a heat pump and a heat storage tank. The heat storage tank contains water, which absorbs the external heat and then supplies the heat pump. On summer nights, heat storage tanks store cold water; in winter nights, heat storage tanks store warm water and heat exchange through heat pumps for indoor heating or air conditioning. Recently, a new type of ice thermal storage heat pump system has been developed abroad. It can use the heat energy released when stored water becomes ice. This is because 1 kg (0°C) of water can release 80 calories when frozen, which is 12 times the normal warm water storage capacity.