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22/07/20

What are the uses and classifications of air compressors?

The air compressor is the main component of the air source device. It is a device that converts the mechanical energy of a prime mover (usually an electric motor) into air pressure energy. It is a pressure generating device for compressed air.

First, the use of air compressors

1 Powered by compressed air:

There are all kinds of pneumatically driven machinery. The exhaust pressure of the pneumatic tools of Sullair air compressor accessories is 7-8 kg/cm 2 , which is used for control instruments and automation equipment. The pressure is about 6 kg/cm 2 . The pressure is between 2 and 4 kg/cm2, the stirring pressure in the pharmaceutical industry is 4 kg/cm2, the weft blowing pressure of an air-jet loom is 1-2 kg/cm2, and the starting pressure of a large diesel engine is 25-60 kg/cm2. The well fracturing pressure is 150 kg/cm2, the “two method” oil pressure is about 50 kg/cm2, the high-pressure blasting pressure is about 800 kg/cm2, and the pressure in the national defense industry is powered by compressed air. The rise and fall of submarines, the launching and driving of torpedoes, and the salvage of sunken ships are all powered by compressed air of different pressures.

Air compressors are often used for five main purposes

2. Compressed gas is used for refrigeration and gas separation:

Gases are liquefied by compression, cooling, expansion, and are used for artificial refrigeration (refrigeration, refrigeration, air conditioning, etc.), such as ammonia or Freon air compressors. Its compression pressure is above 8~12 kg/cm2, and this air compressor is usually a "refrigerator" or "ice maker". In addition to liquefied gas for gas mixtures, in separation units, components are separated and eligible for various gas lip readings. Such as mobile air compressor liquefied air separation can separate pure oxygen, pure nitrogen, and pure xenon, krypton, argon, helium and other rare gases.

Air compressors are often used for five main purposes

3. Compressed gases used in synthesis and polymerization;

In the chemical industry, gases compressed to high pressures are often advantageous for synthesis and polymerization. Such as nitrogen, hydrogen, ammonia, hydrogen and carbon dioxide, methanol, carbon dioxide and ammonia, urea synthesis, etc. Chemical industry, such as high pressure polyethylene pressure is 1500~3200 kg/cm2.

4. Hydrogenation of oil refining compressed gas:

In the oil industry, hydrogen is artificially heated and pressurized to react with oil. It can crack the reformed part of hydrocarbons into light components of hydrocarbons, such as light weight of heavy oil, hydrorefining of lubricating oil, etc.

5. Gas transportation:

Air compressors and water-cooled screw air compressors used to transport gas in pipelines determine their pressure according to the length of the pipeline. When conveying gas, the pressure can reach 30 kg/cm². The chlorine bottling pressure is 10~15 kg/cm2, and the CO2 bottling pressure is 50~60 kg/cm2.

Air Force A.: Traditional Air Tools, Drills, Air, Air Wrench, Air Blast

B. Instrument control and automation devices, such as tool change in machining centers.

C. Vehicle braking, door and window opening and closing

D. Air-jet looms use compressed air to blow weft instead of shuttle

E. The food and pharmaceutical industry uses compressed air to stir the slurry

F. Startup of Large Marine Diesel Engines

G. Wind Tunnel Experiment, Underpass Ventilation and Metal Smelting

H. Oil well fracturing

1. High pressure air blasting mining

J. Weapon Systems, Missile Launches, Torpedo Launches

K. Submarine ups and downs, wreck salvage, submarine oil exploration, hovercraft

L. Tire inflation

M. spray paint

N. Blow molding machine

O. Air separation industry

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What should I pay attention to when using an air compressor in winter?

The north has been covered with snow and ice, and the south has cooled considerably. The air compressor user began to consult, the air compressor could not take air, there was no response when it was turned on, etc.

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Small common sense and working principle of air compressor

The air compressor is a driving fluid machine that lifts low-pressure gas into high-pressure gas, and is the core of the refrigeration system. It inhales the low-temperature, low-pressure refrigerant gas in the pipeline, drives the piston to compress through the operation of the motor, and releases the high-temperature, high-pressure refrigerant gas to the exhaust pipe to provide power for the exhaust pipe. refrigeration cycle.

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Air compressor routine maintenance?

Compressed air and electrical appliances are dangerous. When repairing or maintaining, it should be confirmed that the power supply has been cut off, and warning signs such as "repair" or "prohibition of starting" should be hung on the power supply to prevent others from turning off the power supply. prevent injury;