2026-04-10Views：
When the single screw is running, the screw and the star wheel have a speed difference, one-way compression, air is easy to compress, and the speed is low. The twin-screw is co-extrusion, which requires high speed, and the lubrication of water is not enough compared to the oil density, and the compressed air is easy to flow backwards. The lubrication part is water, pure water.
Air contains absolutely no oil, but it contains water. In the field of high gas quality requirements, such as textile, metallurgy, food, chemical industry, petroleum and air separation and other places that need pure oil-free compressed air, oil-free screw compressor can provide high-quality compressed gas to meet various needs, so the application prospect is broad.
When the compressor is working, the air is sucked in through the self-cleaning air filter. Through the automatic cleaning filter, the air enters the first-stage compression after being automatically adjusted by the inlet guide vanes. The gas temperature after the first-stage compression is higher, and then enters the intercooler for cooling (the water goes through the pipe, the air goes outside the pipe, and the water flow of the intercooler is required to be 110 m/h) and then enters the second-stage compression system, in order to prevent the gas in the system from pouring into the compression cavity (to avoid starting under pressure), a hanging full-open check valve is installed in the exhaust pipe of the compressor. The gas discharged from the compressor pushes the check valve into the exhaust muffler. Then enter the primary aftercooler, the secondary aftercooler, and then enter the main exhaust pipe.
Shanghai Granklin Group
oil-free air compressor in the process of operation is not involved in the oil, whether it is oil-free piston machine or oil-free screw machine, they will produce a lot of high temperature in the process of operation, if there is oil air compressor oil participation will take away the high temperature generated in the process of air compressor compression, so as to cool the machinery. Explosion-proof oil-free air compressor manufacturers take you to know more!
Stable and continuous displacement (usually expressed by L/MIN): refers to the number of liters of gas flow per minute under the rated working pressure, and to ensure a continuous and stable gas flow, so the air compressor work stability requirements are very high.
Due to the poor intake and exhaust valves of the previous stage, the backflow will cause the interstage air pressure to drop. The poor secondary intake and exhaust valves will cause the interstage air pressure to increase, and the connecting pipe resistance will be large, and the exhaust temperature will increase abnormally.
Oil-free air compressor, Granklin water lubricated air compressor is oil-free air compressor
treatment measures: repair the air valve or replace the new parts, check and clean the pipeline;
the intermediate stage exhaust gas temperature is abnormally low due to the leakage to the outside of the aircraft before the second stage suction.
Treatment measures: check the leakage position and take measures to stop the leakage;
The first reason for the failure of the shutdown of the air compressor is: the exhaust temperature of the unit is high 1, and the lubricating oil level of the machine is low; Solution: Add oil to the 1/2~2/3 position of the sight glass. 2. The cooling fan is not working properly; Solution: Troubleshoot the fan
Q: How to choose the pressure and gas volume of the air compressor? Granklin Air Compressor Answer: The air volume and pressure of the air compressor are based on the gas volume and gas pressure of the equipment you use, and do a good job of upgrading the production line or reserving a part of the surplus gas volume in the future.
Common types of oil-free compressor are: oil-free scroll air compressor, dry oil-free air compressor, water lubrication oil-free air compressor. Different oil-free screw air compressor models, exhaust pressure, power and exhaust volume parameters are different. The medical water-lubricated air compressor produced by Shanghai Granklin Group is 100% oil-free.
View detailsThe air compressor keeps working, but the air supply is still insufficient. The air compressor works to stop the gas tank when there is a little pressure. Listen to the external pipes of the air compressor, the air supply pipe of the air compressor on the air tank, and the one-way valve. Safety valve, pressure switch and other joints are leaking sound. Such as row
The simplest point is to see whether it contains a frequency converter, and the second is to see whether the motor changes its speed according to the actual working conditions during operation. There are many factors to look. Speed directly affects the oil pressure and high and low pressure. I can see whether there is frequency conversion in current or not. Literally understood, the speed of the variable frequency air compressor is almost the same as the fixed frequency under the working state. When the air compressor is not in the pumping state, the motor frequency will automatically drop and the input power will be reduced to achieve the effect of energy saving.
What should I pay attention to when the permanent magnet frequency conversion oil-free air compressor is turned on in summer? At this time, people are afraid of heat. We need to stay in the air-conditioned room blowing the air conditioner and drinking iced drinks. High temperature weather is not only a test for people, but also a frequent failure stage for oil-free air compressors. The most common high temperature phenomenon in summer will cause various failure problems of oil-free air compressor.
What brand of air compressor should you choose for purchasing special air compressor for electroplating? The oil-free screw compressor produced by Shanghai Granklin Group provides pure compressed gas, which can avoid the breeding of bacteria and bacteriophage in the gas. In the electroplating industry, there are some problems in the production process, such as the surface of the coating, burning, cracks and so on. People use stirring to solve such problems, and the stirring needs the support of compressed air.
View detailsHello, our factory specializes in producing "granklin brand" water-lubricated air compressors. Our factory is in Shanghai. You can take a look at our case. Water lubricated oil-free air compressor is generally a single screw air compressor, single screw water lubricated oil-free air compressor is used for compressor lubrication medium is water, using water as a seal, completely oil-free, pure oil-free compressed air, completely changed the production environment of some industries.
The water-lubricated air compressor produced by Shanghai Granklin Group is widely used as energy power in piling, tunnel sand blasting, pipeline pressure, oil drilling, mining, shipyard rust removal, nitrogen making machine matching, oil exploration, shale gas exploitation, exploration and other industries.
View detailsFor medicine, food, semiconductor, chemical industry, fermentation and other industries, oil-free and clean compressed air must be the first choice. Oil-free oil-free screw air compressor, water-lubricated oil-free screw air compressor, oil-free scroll air compressor and oil-free centrifugal air compressor are common oil-free.
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