热泵是近几十年来发展起来的供热新技术。它可以从大气、江河湖海及土壤等低温介质中汲取热量,放散到需要供热的空间去,达到保温取暖或干燥等目的。由于热泵具有节约电力或燃料、简化设备、便于自动控制等优点,所以世界各国都日益注意热泵技术 Heat pump is a heating technology developed in recent decades. It can draw heat from the low temperature medium such as the atmosphere, the rivers, lakes and seas and the soil, and dissipate it to the space that needs heating, so as to achieve the purpose of keeping warm, heating or drying. As the heat pump has the advantages of saving electricity or fuel, simplifying the equipment and being convenient for automatic control, all countries in the world pay more and more attention to the heat pump technology