2026-04-10Views：
single screw air compressor and twin screw air compressor which is good?
Below we analyze.
Principle: The single screw air compressor uses a single screw rotor to drive two symmetrically distributed star wheels to rotate, relying on the spiral groove and the inner wall of the shell to form a closed basic volume, so that the gas can reach the required pressure.
The twin-screw air compressor consists of a pair of meshing rotors distributed in parallel. One rotor rotates clockwise and the other rotates counterclockwise, generating the required compressed air during the meshing process. The utility model has high mechanical reliability, good dynamic balance and strong applicability.
Technically, single screw air compressors are not as mature as twin screw air compressors. Single screw air compressor with two star wheel single screw connection compression.
Direct contact between the three parties causes wear of the star wheel and the rotor, resulting in short service time, large leakage inside the machine head and reduced exhaust. The female and male rotors are connected by twin screws, and there is an oil film between the two rotors and there is no direct contact. The friction force is small and the displacement does not change with time.
Motor: The main motor of the single screw air compressor is an ordinary motor, and the main motor of the double screw is an energy-saving motor, which makes the bearing of the single screw motor wear seriously and increases the operating cost.
Maintenance cost: Screw electric air compressor manufacturers believe that although the purchase cost of single screw air compressor is low, the friction between the star wheel and the rotor is large, and the star wheel needs to be replaced. The maintenance cost and operating cost are naturally high, otherwise the return air loss is serious and cannot meet the specified requirements.
Although the procurement cost of the twin-screw air compressor is high, the equipment is stable, the operation is stable, and the applicability is strong.
If the gas requirements are high, the preferred is a single screw air compressor. At present, the main single screw air compressor on the market is the use of water lubricated single screw air compressor, gas cleanliness is higher.
What are the forms of oil-free air compressors? At present, oil-free air compressors are widely used. What are the forms of oil-free air compressors? First: Water-lubricated screw Water-lubricated oil-free air compressors use pure water. Therefore, their equipment is sealed during operation,
Oil-free air compressor theoretically no clearance volume, single capacity, ideal isothermal compression, due to the good thermal conductivity of water, lubricating water into the compression chamber, the temperature will drop to 45 ℃, close to the suction temperature. Oil-free: water to replace oil, lubrication, cooling, sealing, noise reduction of the four effects, to provide 100 oil-free air, no pollution, the discharge of water without special treatment, in line with environmental requirements.
View detailsScrew air compressors are more common in the air compressor market, gradually replacing piston machines. Basically the piston machine has been taken off the market. But how do you know the price of an air compressor? Users who do not understand must bear the burden.
The medical air compressor must be controlled within 60 decibels, and the sound of the general household air-conditioning compressor (about 55 decibels), medical staff will not feel uncomfortable working in such an environment. In view of the relatively quiet environment required by the hospital, air compressors with noise higher than 60 decibels cannot be used in hospitals.
View detailsThe traditional "oil-injected screw air compressor" in the development of "water-lubricated oil-free air compressor", the impact is not small, users due to the upgrading of enterprise product lines, more inclined to use "water-lubricated air compressor", or similar "oil-free air compressor". The construction of a civilized city proposed by the state has higher and higher environmental protection requirements, and the products invested in "water-lubricated air compressors" have also been highly recognized by the market.
As we all know, the screw air compressor adopts a pre-set configuration, only a single power connection and compressed air connection, and built-in cooling system, which can greatly simplify the installation work. Its advantage lies in the use of high-capacity compression components, its rotor outer circle speed is low, to achieve a high
As a professional equipment that gets along with laboratory personnel for a long time, the noise control requirements of the machine are very high. The procurement of laboratory air compressors needs to be oil-free and quiet to provide a good working environment for laboratory staff.
Compressed air can be pressurized, cooling, adsorption and other methods to remove the water vapor, and can be through heating, filtration, mechanical separation and other methods to remove liquid moisture. Refrigerated dryer is a kind of equipment that cools the compressed air to remove the water vapor contained in it and obtain relatively dry compressed air. The rear cooler of the air compressor also uses cooling to exclude the water vapor contained therein. Adsorption dryer is the use of adsorption principle to remove the water vapor contained in compressed air.
Shanghai granklin group specializes in the research and development, production and sales of "oil-free air compressors". it needs to purchase water-lubricated oil-free air compressors. you can contact us at any time. contact person: Mr. Hu, tel: 13918023456
Shanghai granklin group produces water-lubricated air compressors, which use water-lubricated air compressor heads. The whole air compressor does not contain oil, and the following problems with oil screw air compressors will not occur.
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