Introduction: Speaking of refrigeration compressor we may feel strange, no refrigeration compressor in the mind, but in fact, daily life but a lot of places have to use it, like refrigerators, freezers and other refrigeration devices will certainly have its figure. Usually we understand the refrigeration compressor is certainly less and less, then today let me and you to study it!
Refrigeration compressor working principle
Refrigeration compressor is working in a kind of vapor compression refrigeration system. It is the refrigerant from the original low-pressure state to high-pressure state, and let the refrigerant in the work of the internal circulation flow, so as to make the system generated by the internal heat discharge to the external environment. Refrigeration compressor is the core part of the refrigeration system, the refrigeration system to the compressor as the intermediary input of electrical energy, so that the heat from the low temperature to the high temperature discharge.
Screw compressor machine structure is delicate, small size, light weight and if a small amount of liquid inadvertently into the machine, there is no danger of liquid shock. It does not have the cylinder, piston, piston ring and other parts equipped on the piston compressor. It can use the valve for energy regulation, a very wide range of applications and smooth and reliable operation. However, the screw type refrigeration compressor processing production and assembly settings require high precision, there will be a large noise when working, generally need to be installed to eliminate the noise of the device. And in use also need to add lubricating oil.
The compressor is a transcritical carbon dioxide air-conditioning system efficiency and reliability of the largest impact of the components, it should be combined with the recombination of carbon dioxide supercritical cycle of the specific characteristics of the design. Since carbon dioxide requires less air pressure from the compressor, there is no need to cool the compressor during the design and production process. It is due to the good adiabatic insulation and small pressure ratio that the re-expansion loss of some spare gaps in the compressor's working process can be reduced, thus increasing the volumetric efficiency of the compressor. According to experiments and research, the reciprocating compressor has a good oil film sliding seal characteristics, so as to become the first choice of carbon dioxide system.
Refrigeration Compressor Development Prospects
In recent years, the refrigeration compressor industry in various countries have continued to develop rapidly, and the global concentration of the compressor market has also been strengthened. Leading compressor manufacturers in the continuous industry consolidation, in order to improve their competitiveness. Today, Germany's BITZER and the United States Ingersoll Rand are gradually occupying a dominant market position.
At the same time, in recent years, China's refrigeration compressor industry also has rapid development. During the Eleventh Five-Year Plan, China's refrigeration compressor localization rate has improved greatly; some areas of the demand for refrigeration compressors also increased rapidly. Now accompanied by China's Twelfth Five-Year Plan and carried out, the domestic market for the refrigeration compressor industry has a lot of room for development, but also gives the industry great opportunities and challenges. It is expected that, during the 12th Five-Year Plan period, China's refrigeration compressor market size will grow rapidly, the growth rate will be maintained at more than 10%.
With China's prosperous development, the global center of gravity of compressor manufacturing has gradually shifted to China. China has also become an important market for BITZER in the world. The entry of international compressor manufacturers into China has boosted the competitiveness of the industry while driving the country's economic development.
It is believed that through the introduction of small, we have a refrigeration compressor has the overall concept and understanding. Refrigeration compressor is indispensable to daily life, let us pay more attention to the development of this industry.