High quality CO2 compressor

 

 

It is very important to choose a high quality CO2 compressor. When you choose the right compressor, you can use it to produce the best product for higher returns.

 

Highlights:

 

Principle of CO2 compressor

 

Best features of CO2 compressors

 

Excellent application for CO2 compressors

 

Principle of CO2 compressor
From the application industry of compressors, the industries used for compressed air include machinery, automobiles, electronics, electric power, metallurgy, mining, construction, building materials, petroleum, chemical, petrochemical, textile, environmental protection, military and other industrial and civil fields. All areas of production and life. Compressed air is an important source of energy for industrial products, and it is also known as the "source of life" for the production of industrial products.

 

There are many types of air compressors, which can be divided into three categories based on how they work: volumetric, dynamic (speed or turbo) and thermal. In positive displacement compressors, the increase in pressure is achieved by relying on direct compression of the gas volume. In a powered compressor, the impeller rotates at high speed to increase the pressure and velocity of the gas, and then in the stationary element, a portion of the velocity can be further converted into energy for the pressure of the gas. The jet is a thermal printer. It uses a high-velocity gas or steam jet to carry the inward-flowing gas, which is then converted into pressure energy at the velocity of the diffused mixture.

 

Best features of CO2 compressors
Compared with ordinary refrigerant compressors, CO2 compressors have high working pressure, large differential pressure, small pressure ratio, small volume, light weight, difficulty in controlling the clearance of moving parts, and difficult lubrication characteristics. Therefore, the research and development of carbon dioxide compressors has always been a difficult point in the development of refrigeration technology. Various research institutes and refrigeration equipment companies have developed various types of compressors at home and abroad. Due to the environmental advantages of CO2 in automotive air conditioning applications, CO2 automotive air conditioning compressors have also been studied and developed through various refrigeration companies and vehicle companies.

 

Excellent application for CO2 compressors
1. In the application of automobile air conditioning, at this time, the air conditioning system is operated under transcritical conditions, and its working pressure is high but the compression ratio is low, the relative efficiency of the compressor is high; the excellent heat transfer and the thermodynamic properties of the supercritical fluid make it The efficiency of being a heat exchanger is also very high, which makes the air conditioning system more energy efficient and can compete with conventional refrigerants (such as R12, R22, etc.) and other existing alternatives (R134a, R410A, etc.). For the development of electric vehicles, the characteristics of carbon dioxide heat pumps can also solve the problem that modern car air conditioners cannot provide enough heat to the car in winter. Through numerous experimental studies, it has been shown that the transcritical cycle of CO2 for vehicle air conditioning not only has environmental advantages, but also has systemic efficiency.

 

2. Applied to various heat pumps, especially heat pump water heaters. At this time, the heat pump system also operates under transcritical conditions, and the advantages of the compressor and heat exchanger still exist; the most important change in the gas cooler CO2 is suitable for the heating of water, thus making the heat pump it is more efficient , and can compete with conventional refrigerants (R134a, R410A, etc.). By studying the CO2 heat pump, not only the CO2 emission can be reduced, but also the heat pump has high performance and has broad application and development prospects.

 

3. Application in cascade refrigeration system. At this time, CO2 is used as the low temperature refrigerator, and the high temperature is made of NH3 or R290 as the refrigerant. Compared with other cryogenic refrigerants, even at low temperatures, CO2 has a very low viscosity, good heat transfer performance, and a considerable freezing capacity.

At present, in China, NH/CO2 cascade refrigeration system, and NH3 as refrigerant, CO2 as coolant cooling system have been widely used in logistics engineering, poultry processing, ice making, conditioning ingredients and aquatic products. application.