News

Home page

全部分类

How to develop air source heat pump winter defrosting problem solving

Release Time：2021-07-21

Air source heat pump enterprises generally face problems such as "high compressor cost, after-sales promotion, technical obstacles" and so on. The essential problems of these problems are: the lack of norms and standards in the application field of air source heat pump compressors, the development of air source heat pump industry in China for more than ten years, the industry has issued energy efficiency standards, energy saving subsidy standards, etc., and actively promote the inclusion of air source heat pumps in the category of renewable energy.
The air source heat pump industry has been developing in China for more than ten years. The industry has issued energy air source heat pump efficiency standards, energy saving subsidy standards, etc., and actively promotes the inclusion of air source heat pumps in the category of renewable energy.
Compressor companies are also embarrassed by this: "The overall scale of the air source heat pump industry is not large, but the types of compressor brands used are various, and it is difficult to achieve large-scale mass production. In this way, if the whole machine company wants to use heat pump special Compressor, but also want to reduce the cost of the compressor, this wish is difficult to realize,".
The common defrosting methods of air energy heat pump are air source heat pump reverse cycle defrosting, hot gas bypass defrosting, heating defrosting, and disguised energy storage defrosting.
Reverse cycle defrosting is currently the most common defrosting method, it is the use of four-way valve for reversing, from the indoor machine heat absorption, and then this part of the heat to the outdoor, complete the defrosting process, although this defrosting method is used more, but there are poor comfort, defrosting time is longer and other issues.
Hot gas bypass defrosting method is another common defrosting method of air energy heat pump. The air source heat pump delivers the exhaust gas of the compressor to the outdoor heat exchanger through the bypass circuit, and then completes the defrosting process. Although this method is easy to use, it takes a long time to defrost, which may cause load operation on the compressor.
Heating defrosting is the fusion of hot gas bypass defrosting and refrigerant direct heating technology. It is a more scientific and reasonable defrosting method than reverse cycle defrosting and hot gas bypass defrosting. Its defrosting advantage is that it does not affect the comfort of the room during defrosting, and the defrosting period does not affect the normal operation of the compressor.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong, the hometown of FRP in China. The company has Grade II qualification for fire protection facilities engineering, Grade II qualification for construction mechanical and electrical installation engineering, Grade II qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, and an axial fan invention patent, A fan utility model patent, environmental assessment, safety assessment, three simultaneous and other procedures are complete.