Heat pump system promotion has entered a fast-growing orbit

In today's increasingly tense international energy situation, energy-saving and emission reduction has become more and more of concern to all countries in the world. A heat pump is a device that uses low-grade thermal energy. The use of a heat pump to produce hot water can greatly reduce the consumption of primary energy and the combustion of fossil fuels. Emissions. In China, the application and promotion of heat pump systems has entered a fast-growing track. Driven by some companies, each compressor company has realized that special heat pump compressors are one of the trends in the industry.

With the rapid development of China’s economy and the increasing improvement of people’s living standards, domestic hot water and air conditioning in public buildings and housing have become a common demand. In developed countries, HVAC and heat pump systems use 25 to 6-30% of total energy consumption.

For the promotion of the Chinese market, companies that currently use Hitachi compressors include Gree, Yangzi, Hangning, and A. O. Smith, Ariston, etc., there are also some professional heat pump manufacturers. It is understood that at present, Copeland for the production of scroll compressors, Meizhi, Mitsubishi, and Panasonic for the production of rotary compressors are all developing and introducing compressors for heat pumps.

The heat pump water heater is mainly composed of a compressor, a heat exchanger, an axial fan, a heat preservation water tank, a water pump, a liquid storage tank, a filter, an electronic expansion valve, and an electronic automatic controller. "The heat pump water heater technology has two major problems, one is a water tank and the other is a compressor," said Yue Hongsheng, manager of heat pump propulsion office of Shanghai Hitachi Electric Appliance Co., Ltd.

Before 2009, heat pump water heaters used air-conditioning compressors, while air-conditioning compressors were not suitable for heat pump water heaters, and their life was very short. At present, heat pump compressors are subject to higher prices and fewer models, and are still in the initial stage of promotion. In addition to special heat pump compressors, thermal insulation tanks have special products introduced. According to a survey of air-conditioning and refrigeration markets, the heat pump water heater tank casings of other companies in the industry are all air-conditioned.