2026-04-10Views：
Air compressors are used in energy, textiles, steel, dairy products, pharmaceuticals, breathing, diving, fire protection, electronics, machinery, equipment, automobiles, packaging, printing, toys, chemicals, energy, glass, environmental protection, hardware, PET blowing Bottle, shipping, medicine, etc.
1. Compressed air as power:
A total of all kinds of pneumatic machinery are driven. The exhaust pressure of pneumatic tools is 7-8kg/cm2, which is used to adjust instruments and automatic devices. The pressure is about 6kg/cm2, the vehicle is automatic, the doors and windows are opened and closed, the pressure is 2-4kg/cm2, the stirring pressure in the pharmaceutical industry and brewing industry is 4kg/cm2, and the weft blowing pressure in the air jet loom is 1-2kg/cm2, the starting pressure of medium and large engines is 25~60kg/cm2, the pressure of oil well fracturing is 150kg/cm2, the pressure of "secondary method" oil recovery is about 50kg/cm2, and the pressure of high-pressure blasting coal mining is about It is 800kg/square centimeter, and the pressure compressed air in the aerospace industry is its power. The ups and downs of submarines, the firing and driving of torpedoes, and the salvage of sunken ships are all powered by compressed gases at different pressures.
2. Compressed gas is used for refrigeration and gas separation:
gas is liquefied by compression, cooling, expansion, and used for mechanical refrigeration such as ammonia or freon compressors. Its compression pressure is mostly 8 to 12kg/square centimeter, and this type of compressor is usually called a "refrigerator" or "ice machine". In addition to the liquefied gas, if it is a mixed gas, the components can be separated separately in the separation device to give qualified purity of various gases. Such as air liquefaction can be obtained after separation of pure oxygen, pure nitrogen, and pure xenon, krypton, argon, helium and other combustible gas.
3. Compressed gas for synthesis and polymerization:
in the chemical industry, gas compression to high pressure, often favorable synthesis and polymerization. For example, ammonia is synthesized from nitrogen and hydrogen, methanol is generated from hydrogen and carbon dioxide, and urea is synthesized from carbon dioxide and ammonia. In the chemical industry, for example, the pressure of high-pressure polyethylene reaches 1500 to 3200kg/cm2.
4, compressed gas is difficult about oil hydrogenation refining:
in the petroleum industry, hydrogen is heated by traditional methods and reacted with oil after pressurization, which can crack the heavy components of hydrocarbons into light components of hydrocarbon oxides, such as the lightness of heavy oil and the hydrogenation of lubricating oil.
5. Gas delivery:
the pressure of a compressor used to pipe air depends on the length of the pipeline. When sending remote gas, the pressure is 230kg/cm2. Chlorine bottling pressure is 10~15kg/square centimeter, carbon dioxide bottling pressure is 50~60kg/square centimeter.
I think only the internal structure of the screw air compressor is quite understand and understand the function and role of various accessories, in order to find the cause of the failure in time. The following small series for everyone to list each screw
When the laboratory uses compressed air, it needs high-quality oil-free air. The "water-lubricated oil-free air compressor" produced by "Shanghai Grankering Group" can provide 100% oil-free "oil-free compressed air" for high-precision tests ". In the laboratory ventilation equipment we can refer to the following:
[Structure diagram of single screw compressor] [Figure [Analysis Single screw air compressor belongs to positive displacement compressor. By compressing the gas in a variable volume, the volume of this part is reduced and the pressure is increased. The core structure of the compressor is finished by a special machine tool and consists of a screw with six spiral grooves, with one on both sides.
Shanghai Granklin Group is a production enterprise engaged in oil-free air compressors, screw air compressors, and water-lubricated air compressors. The water-lubricated screw air compressors produced by our company are sold at home and abroad and are widely praised by users. Bring more oil-free compressed air to all walks of life.
View detailsAs a completely market-oriented industry, China's screw air compressor enterprises have experienced several rounds of ups and downs, some star enterprises "flash in the pan" out of the market.
Many enterprises in the purchase of permanent magnet variable frequency air compressor, often because of the permanent magnet variable frequency air compressor industry is not familiar with, do not know what kind of permanent magnet variable frequency air compressor brand. Generally speaking, in the domestic permanent magnet variable frequency air compressor market, there are several commonly used
It is best to use the original lubricating oil or the lubricating oil recommended and specified by the manufacturer. One is the oxidation resistance and thermal stability of compressor oil. For compressor oil, its oxidation resistance and thermal decomposition resistance can not only prevent oil thickening, deposition and sludge formation, but also extend the service life of compressor oil, thereby saving the high cost caused by replacement, shutdown and oil cleaning;
In the semiconductor industry, the quality requirements for compressed air are very strict. Oil-free compressed air has become the basic configuration of new production lines in the industry. Why can water-lubricated oil-free air compressors continue to be recognized by semiconductor customers? Air-cooled, water
1, small maintenance: only need to replace the air compressor oil and oil filter, usually in the new machine running 500 hours to replace. 2. Major maintenance: In addition to replacing the air compressor oil and oil filter, it is also necessary to replace the air compressor air filter element, oil and gas separator core, motor grease, etc.
Those engaged in the installation, transformation and maintenance of pipelines such as gas storage tanks and other pressure vessel equipment must obtain the corresponding qualification license. Units engaged in installation must have installation qualifications, install in accordance with relevant safety specifications and requirements, and be responsible for the safety and quality of pressure vessels, and strictly implement national safety standards and technical standards.
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