Analysis of the development prospect of heat pump technology in the Chinese market

The heat pump started earlier in China. In the 1950s, some scholars at Tianjin University began to work on heat pumps. In the 1960s, heat pumps were used in HVAC in China. For example, since 1963, the former East China Architectural Design Institute and Shanghai Air-Conditioner Factory began to develop heat pump air conditioners; in 1965, Shanghai Refrigerator Factory developed the first CKT-3A heat pump window air conditioner with a heat capacity of 3720kw. In 1965, Tianjin University and Tianjin Air-Conditioner Factory developed the first water-cooled heat pump air conditioner in China. In 1966, it cooperated with the Quartet Vehicle Research Institute of the Ministry of Railways to test the air-to-air heat pump of the mainline passenger car. In 1966, the former Harbin Institute of Civil Engineering and Harbin Air Conditioning Machinery Factory successfully developed the LHR-20 constant temperature and humidity heat pump air conditioner. For the first time, the new process of condensing waste heat used as the secondary heating of the constant temperature and humidity air conditioner was proposed. However, due to the particularity of China's energy prices and the influence of other factors, the application and development of heat pump air conditioners in China has been slow. It was not until the late 1970s that it provided an opportunity for the development and application of heat pump air conditioners. From the early 1980s to the end of the 1990s, a heat pump heat was set up in the field of HVAC in China. The application of heat pump air conditioners in China is increasingly widespread, and the development speed is very fast, mainly in the following points.