Research on the energy loss characteristics and improving measurement of heat pump

Through studying of energy loss characteristics of air source heat pump, this paper focused on energy efficiency of current heat pump systems influenced by seasonal temperature and the problem that the energy loss of high pressure refrigerant in the expansion valve can not be effective used, proposing a structure called variable volume and motor-compressor joint shaft mechanism. The structure can fundamentally overcome the shortcomings of poor adaptability in low-temperature environment; besides motor-compressor joint shaft mechanism can retrieve the energy which released in the process of pressure reducing of high-pressure refrigerant, then use the energy in the process of compressing of low-pressure refrigerant, in order to reduce compressor power input, the improved mechanism can greatly increase energy efficiency of heat pumps.