What are the types of carbon dioxide compressors?

CO2 compressorProvide piston type or scroll type. Since different types of manufacturers may require different types of carbon dioxide compressors, you can choose the desired model according to the article. You can also use our company'sOxygen compressor,Nitrogen compressorAnd other machines.

main:

• Carbon dioxide piston compressor

• Carbon dioxide vane compressor

• Carbon dioxide scroll compressor

• Carbon dioxide screw compressor

• Carbon dioxide rolling rotor compressor

• C02 axial compressor

Carbon dioxide piston compressor

Because the piston compressor is resistant to high pressure and the seal ring can effectively reduce leakage, the piston compressor is mainly used for early research on carbon dioxide compressors. The basic working principle of CO2 piston compressor is the same as that of traditional male piston compressor. The working cycle of a piston compressor is divided into four processes. The operation of the piston compressor is realized by continuously changing the working volume of the cylinder, the gas valve and the piston reciprocating in the cylinder. If the volume loss and energy loss in the actual operation of the piston compressor are not considered (that is, the ideal working process), the work completed by the crankshaft of the piston compressor can be divided into suction, compression and exhaust processes. The overall structure of the piston compressor is related to the sealing method, working conditions, cooling load, production, installation, cost and other factors.

Carbon dioxide vane compressor

The vane compressor is a positive displacement compressor. In vane-type carbon dioxide compressors, leakage loss is an important factor affecting volumetric efficiency, and pressure drop loss has little effect on volumetric efficiency, so volumetric efficiency increases with increasing speed. For the vane type CO2 compressor, even if the rotation speed is high, the suction pressure drop is small. Therefore, it is more suitable for operation at high speed than the R134a compressor. The vane compressor uses traditional, proven technology to drive directly at extremely low speeds, with unparalleled reliability. The rotor is the only component that runs continuously. It has thousands of slots cut along its length and slides on the oil film. The rotor rotates in the stator of the cylinder. During the rotation, centrifugal force pulls the slider out of the groove to form a separate compression chamber. The rotation causes the volume of the compression chamber to continuously decrease, and the air pressure continues to increase. The heat generated by compression is controlled by injecting pressurized oil. The high-pressure air is discharged from the exhaust port, and the remaining oil is removed by the final oil separator.

Carbon dioxide scroll compressor

For the development of CO2 scroll compressors, the main problem is radial leakage. By adopting measures such as compression chamber injection and axial flexible mechanism, the axial leakage gap between the moving plates is reduced, thereby reducing the radial leakage. Quantity. The scroll compressor is mainly composed of active scroll, reticulated scroll, bracket, eccentric shaft and anti-rotation mechanism. After assembling the movable scroll and the net scroll with the same scroll line parameters, the phase difference is set to π, and the center of the base circle is fixed, so that multiple pairs of crescent-shaped volume chambers can be formed. When the eccentric shaft pushes the center of the scroll to form a circular orbit around the center of the clean scroll, the enclosed volume chamber expands or contracts accordingly, so as to achieve the purpose of suction, compression and exhaust. The low-pressure gas enters the suction chamber from the suction hole opened in the mesh scroll or the peripheral gap between the movable scroll and the fixed scroll, and is compressed and removed by the exhaust hole in the center of the mesh scroll.

Carbon dioxide screw compressor

Air is sucked in through the filter and proportional valve, which is mainly used to adjust the cylinder rotor and the pressure chamber formed by the blades. The rotor rotates eccentrically relative to the cylinder, the valve plate is installed in the groove of the rotor, and the slider is pushed toward the cylinder wall under the action of centrifugal force. An efficient oil injection system can ensure the cooling of the compressor and reduce the loss of lubricant on the cylinder wall. The thin oil film formed on the film prevents direct contact between metal parts and causes wear.

Carbon dioxide rolling rotor compressor

The rotor compressor is driven by an electric motor or an electric motor (mainly driven by an electric motor), and the other rotor is driven by an oil film formed when oil is sprayed. The main gear or synchronizing gear is located at the end of the main rotor and the concave end of the rotor. The compressor cylinder is equipped with a pair of interdependent internally threaded rotors that rotate in opposite directions to each other. The gap between the rotor and the housing is 5-10 lines. The main rotor is driven by one or more electric motors, and the other rotor is driven by an oil film. The rotor is formed with a synchronous transmission with injection or injection, a main rotor end and four rotor ends. Therefore, there are no metal contacts on the drive.

C02 axial compressor

Axial compressors are large air compressors. The maximum power can reach 150,000 KW, the displacement is 20,000 m3/min, and the compressor energy efficiency can reach 90%. It is more energy efficient than centrifuges. . The fixed blade adjustable mechanism of the axial compressor and the intermediate cylinder driving the mechanism. The casing is standardized, the casing of the same level has different stages, the inlet cylinder and the exhaust cylinder are the same, and the change of the body length of different levels realizes the wooden mold. When the number of stages is not used, all structures are the same except the axial length. The main shaft is made of nickel-chromium alloy steel, the blade material is chrome stainless steel, the inner cylinder structure of the blade, the shaft seal, the auxiliary equipment of the coupling stage axial compressor, the lubricating oil system, the control device system and the protection system are all intelligent. The response of the first six levels is 70%, and the response of the next few levels is 100%.

The working principles of six different CO2 compressors have been described above. Piston-type carbon dioxide compressors are suitable for small and medium gas transportation. The outlet pressure can range from low pressure to ultra high pressure. Centrifugal CO2 compressor and axial CO2 compressor are suitable for medium pressure and medium pressure gas transportation. Rotary CO2 compressors are suitable for small and medium-sized gas transportation at low and medium pressures, while screw CO2 compressors have greater gas transportation capacity. If you have any relevant notes, you can find them on our product page.