国内外热泵热水器的发展

热泵热水器由于它的显著节能优势,使它在与电热水器和燃气热水器的竞争中获得迅速的发展。其中CO2热泵热水器的发展尤为迅速。日本发展得很成功。我国尚在起步阶段。文章分析了CO2热泵热水器的关键技术及其解决途径,包括压缩机、换热器、贮水箱等部件的结构和性能等。最后,提出了我国发展CO2热泵热水器需要解决的技术路线和行业配套设备的生产等问题。

Development of the Water Heater at Home and Abroad

Currently, energy saving is the main topic attracted by all countries all over the world. Heat pump water heaters have developed quickly during the competition with the electrical heaters and gas heaters, due to its dramatic advantages of energy saving. Among them, CO2 water heaters have obtained extremely quick develop-ment in Japan while it is still in the beginning stage in China. In this paper, the key technical issues of CO2 water heaters are analyzed and the possible ways for solving these problems are discussed, including the construction and the performance of the compressor, heat exchanger and the water storage box. Moreover, the special technical route and the production of accessory facilities for the development of CO2 heat pump water heaters in China are proposed as well.