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How does a refrigeration compressor work? Introduction to the working principle of a refrigeration compressor【Detailed explanation】

How does a refrigeration compressor work? Introduction to the working principle of a refrigeration compressor【Detailed explanation】 Refrigeration compressors are devices that are often used in our industrial industry and in life, such as air conditioners, refrigerators, etc., all have a refrigeration function. Traditional refrigeration equipment must be equipped with a refrigeration compressor, and the quality of the refrigeration function is concerned with refrigeration The quality of the compressor, so we must understand the performance of the refrigerator when we buy refrigeration products. Let's take a look at the specific content of the refrigerator. The refrigeration compressor is the core and heart of the refrigeration system. The capacity and characteristics of the compressor lead to the capacity and characteristics of the refrigeration system. In a sense, the design and matching of the refrigeration system is to reflect the capacity of the compressor. Therefore, the refrigeration industry of all countries in the world has invested a lot of energy in the research of refrigeration compressors, and new research directions and research results are constantly emerging. The technology and performance levels of compressors are changing rapidly. There are many types of compressors. According to different working principles, refrigeration compressors can be divided into fixed displacement compressors and variable displacement compressors. In a vapor compression refrigeration system, a refrigeration compressor raises the refrigerant from a low pressure to a high pressure, and continuously circulates the refrigerant, so that the system continuously discharges the internal heat to an environment that is higher than the system temperature. The refrigeration compressor is the heart of the refrigeration system. The refrigeration system inputs electrical energy through the compressor, thereby discharging heat from a low-temperature environment to a high-temperature environment. The energy efficiency ratio of the refrigeration compressor determines the energy efficiency ratio of the entire refrigeration system. Since the ambient temperature changes frequently, the compressor is under partial load most of the time, so the compressor must have energy regulation. In recent years, with the rapid development of the international refrigeration compressor industry, the concentration of the global compressor market has gradually increased. Leading compressor manufacturers have continuously improved their competitiveness through industry integration, gradually appearing in Germany’s Bitzer and the United States Ingersoll. Industry leaders such as Lan represent the dominant market position. At the same time, my country's refrigeration compressor industry has also developed rapidly in recent years driven by downstream demand. During the 11th Five-Year Plan period, the localization rate of complete sets of refrigeration compressors in various fields of industrial refrigeration in China has continued to increase, and the demand for refrigeration compressors in the fields of cold chain logistics and home appliances has also been rising, which is the development of China's refrigeration compressor industry. Provides huge business opportunities. The market demand for refrigeration systems equipped with refrigerant compressors averaged around 50 billion yuan per year from 2008 to 2010. According to cost analysis, the market demand for refrigerant compressors is estimated at around 10 billion yuan; refrigeration systems equipped with refrigerant centrifugal compressors The market capacity is about 19 billion yuan on average. According to cost analysis, the market capacity of refrigerant centrifugal compressors is about 6 billion yuan. 　　With the proposal of my country's 12th Five-Year Development Plan, the domestic market will provide a broad space for the development of the refrigeration compressor industry, and at the same time provide an unprecedented opportunity and challenge for the refrigeration compressor industry to accelerate the improvement of product quality and surpass the world level. During the 12th Five-Year Plan period, the total demand in the field of cold chain logistics in my country was further increased than the total demand during the 15th and 11th Five-Year Plan periods, coupled with the rapid growth of industrial refrigeration demand and the stable demand of the home appliance market as guarantees. 　　 It is expected that during the 12th Five-Year Plan period, my country's refrigeration compressor market will maintain a rapid growth rate above 10%. At present, there are many refrigeration compressor enterprises in my country, and the vast majority are engaged in the production of low-end refrigeration compressors. The main core components of most companies producing spiral refrigeration compressors, the double spiral rotor (accounting for more than 25% of the total cost), basically rely on imports. It is precisely because most domestic enterprises do not have the core technology and can only provide complete machine products, thus largely inhibiting the development of the domestic refrigeration compressor industry. The refrigeration compressor is the heart of the refrigeration system. When we buy refrigerators, we will see many refrigerators with slogans saying how many years the refrigerator can be used, how good the quality of the refrigerator is, etc., to attract consumers, and we often say A frost-free refrigerator is actually a fan installed behind the refrigerator.

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