2026-04-10Views：
Screw air compressor is a single-stage oil-injected twin-screw compressor. It adopts high-efficiency pulley drive to drive the main engine to rotate for air compression. The compressed air in the main engine is cooled by oil injection. The air and oil mixed gas discharged from the main engine are separated by coarse and fine channels to separate the oil in the compressed air, and finally clean compressed air is obtained. The cooler is used to cool the compressed air and oil.
Screw compressor is one of the positive displacement compressors. The compression of air is achieved by the volume change of the cogging grooves of the male and female rotors that are parallel to each other in the casing. The rotor pair rotates in the casing that is precisely matched with it, so that the gas between the rotor slots continuously produces periodic volume changes and pushes from the suction side to the discharge side along the rotor axis, completing the suction, compression, and exhaust Three working processes.
The structure and working process of 1. screw compressor:
1. Basic structure:
this series of screw compressor unit is mainly composed of compressor, motor, transmission mechanism, cooling system, control system and cover. The compressor is driven by the motor through the pulley of the male rotor, because the male rotor and the female rotor mesh with each other, the male rotor directly drives the female rotor to rotate together. The ratio of the number of teeth of the male and female rotors is 5:6. Both ends of each rotor shaft is equipped with high-precision bearings, so as to ensure that the rotor and the casing, male and female rotor has a small gap between, so the compressor can always maintain high efficiency and long-term operation reliability, fully shows the characteristics of high operating rate of screw compressor.
2. Screw compressor working process:
after the atmosphere filters out dust or impurities through the intake filter, it enters the suction cogging volume cavity of the compressor through the intake control valve. With the meshing movement of the male and female rotors, the air in the cogging volume cavity is gradually compressed. When the air is compressed to a specified pressure, the compressed air is discharged from a specific exhaust port, and then flows through the oil and gas separation tank. At this time, the compressed and discharged oil-containing gas passes through collision, interception, the vast majority of the oil medium is separated, and then enters the oil and gas separation core for secondary separation to obtain compressed air with little oil content, and finally cooled by the air cooler for the user to use. The compressor host carries out 5 working cycles per revolution, so the working pressure fluctuation of compressed air is small and the pressure is stable. Therefore, if the working place is limited by conditions, it can be directly connected without air storage tank.
Water-lubricated single-screw air compressor is an oil-free air compressor series. Water is used as a lubricant to fundamentally solve the problem of environmental pollution caused by lubricating oil. Compared with other oil-free air compressors, it has the advantages of simple and compact structure: low speed, low vibration and noise: low exhaust temperature: high thermal efficiency: stable and reliable performance, and low specific power. It is the development trend of new oil-free oil machines.
For customers who need to save electricity and energy consumption, how to spend less money to buy a good quality oil-free permanent magnet air compressor and reduce the energy consumption expenditure of enterprises is the concern of users. So how much does it cost to buy an air compressor?
Business owners were confused about the choice of screw air compressor products in the early stage of factory construction, because during the factory construction process, they will definitely receive sample books from various manufacturers sent by many sales staff. Screw air compressor sales staff publicity
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 detailsThe water-lubricated air compressor produced by Shanghai Granklin Group uses water-lubricated compressed gas without oil. It is the backbone of the new generation of compressor industry. Water lubricated air compressor can be used in more scenes with higher requirements for gas. Oil-free air compressor is more environmentally friendly and energy-saving.
View detailsIn the field of food production, compressed air is the key power source and process medium, and its quality is directly related to food safety and product quality. In order to ensure that compressed air meets the high standards of the food industry, it is necessary to control the cleanliness, oil-free, microbial and other dimensions.
The water lubricated oil-free air compressor uses pure water lubrication that meets the drinking water standard, and the entire compression process is completely free of oil. Thus, 100% oil-free clean compressed air is provided. Product features: 1. High efficiency, high reliability, 100% pure oil-free
Different brands of low-pressure screw compressors have different prices. Take granklin air compressor as an example. A 7.5kw small oil-based air compressor is about 20,000. This belongs to the middle and high grade, and other brands are either high or low. Of course, there are smaller, 4kw, or piston machines below 7.5kw.
What is the difference between a fixed screw air compressor and a variable frequency screw air compressor? Most of the variable frequency air compressors are also fixed, and the fixed screw air compressors include variable frequency air compressors and water lubricated air compressors produced by Grantklin Group are also fixed.
View detailsHow to distinguish oil-free air compressor is good or bad, reduce cost, energy saving and environmental protection, work efficiency and noise pollution is still very low. In the choice of permanent magnet variable frequency air compressor to choose a good oil free air compressor.
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