Application and Requirements of Compressed Air in Industry

Compressed air has a wide range of applications in industry, almost throughout every industry, the main role is not to provide power source, is to provide gas source. With the application of different industries, its requirements are not the same. The following are the main applications and requirements of compressed air in industry:

industrial Applications

1. electric power system: As a power source, used for factory dust removal, boiler water replenishment, wastewater treatment, etc.
2. Textile Industry: As a power source, many machines in the textile industry need to use compressed air as a power source. Compared with the power industry, the content and water content of compressed air are higher.
3. Food Industry: There are many applications of compressed air, including gas for power equipment and direct gas. The quality requirements for compressed air are very high, and some industries also need to do sterilization treatment. It is mainly used for the power source of equipment automation production, gas, powder transportation, waste purging, instrument gas, etc. The process requirements for the direct contact with the product are relatively high, and the general requirements for compressed air are oil-free, water-free, sterile and rust-free.
4. Manufacturing Equipment: As a power source, such as air guns, painting, pressure, shaping, cleaning and many other processes.
5. General Machinery Manufacturing: Production lines such as automobiles, motorcycles, home appliances and other industries. In these areas, air compressors are often used to drive equipment and tools, as well as for gas compression and delivery.
6. Energy Industry: Power supply in areas such as oil, natural gas, and wind power. The application of air compressor in the energy industry is mainly reflected in the gas compression, transportation and equipment drive.
7. Chemical Industry: Gas compression in the production process of fertilizers, pharmaceuticals, pigments, etc. In addition, in the transportation of chemical raw materials, the filling of harmful gases and liquids, the packaging of related dangerous goods, and industrial equipment such as oil drilling, air compressors also have long-term applications.
8. Construction industry: such as concrete spraying, pneumatic tools, etc. Air compressors provide a stable air source for various pneumatic equipment in the construction industry.
9. Transportation Industry: A wide range of application scenarios, including the brake of railway trains, the lane change device of traffic rails, the opening and closing of vehicle doors and windows, the automatic control of subway light rail, and the maintenance of flight equipment.
10. aerospace industry because the compressed air made by the air compressor can withstand high temperature, radiation and large acceleration, it is widely used in the aerospace field, such as the control equipment of aircraft and rockets.
11. Laboratory and Medical: In the laboratory, the silent oil-free air compressor provides stable and high-quality compressed air for the experiment to ensure the accuracy and safety of the experimental results. In the medical industry, air compressors are used in pharmaceuticals, for supplying oxygen to hospitals, and for cleaning.
12. Non-ferrous metal smelting and manufacturing: Mainly used for power execution, instrument gas, spraying, etc.
13. Plastics and rubber products industry: Mainly used for power execution, instrument gas, etc. The plastic industry can also be applied to the bottle blowing process.
14. Electronic industry: In the electronic manufacturing process, compressed air is used as a stable and environmentally friendly power source, and production automation is realized by controlling pneumatic components.
15. Mine and Plant Maintenance: In mines, air compressors are used for degassing water, filtering fines, pneumatic hoists, ventilation, drilling large holes, etc. In factory maintenance, air compressors are used for sandblasting, air jet cleaning, spraying metal, painting, water spray systems, driving tools, etc.
16. pharmaceutical factory valve, instrument control, packaging, crushing equipment gas, fermentation, nitrogen preparation.
17. steel plant valve, instrument control, combustion, oxygen, nitrogen preparation, pneumatic tools, casting.
18. car factory: Valve, instrument, robot control, spraying, pneumatic tools, equipment gas.
19. Sewage plant: Equipment gas.
20. Printing Factory: Equipment gas.
21. Glass Factory: Nitrogen preparation.
22. Furniture Factory: Spraying, gas for equipment.
23. Casino: Cartoon characters or toys use gas.
24. Shipyard: Sanding, spraying, equipment gas.
25. Mine: Valve, instrument control, pneumatic tools.
26. Smelter: Valve, instrument control, equipment gas.
27. Machinery Manufacturing Plant: Sanding, spraying, equipment gas.
28. Rubber Factory: Valve, instrument control, polymerization reaction.
29. Battery Factory: Valve, instrument control, equipment gas.
30. cement plant: Valve, instrument control, pneumatic tools.
31. Waterworks: Valve, instrument control, stirring and sand removal.
32. Cigarette Factory valve, instrument control, packaging equipment gas.
33. thermal power plant: Valve, instrument control, pneumatic tools.
34. thermal power plant valve, instrument control, material conveying, pneumatic tools.
35. dairy plant valve, instrument control, gas for packaging equipment, fermentation.
36. paper mill: Instrument, valve control, process gas, equipment gas.
37. chemical fiber plant valve, instrument control, nitrogen preparation, process gas.
38. Hydropower Station valve, instrument control, turbine speed regulation, pneumatic tools.
39. Electronic and Electrical Appliance Factory: Valve, instrument control, equipment gas, nitrogen preparation.
40. Winery: Valve, instrument control, gas for packaging equipment, nitrogen preparation.
41. Beverage Factory: Valve, instrument control, packaging, extraction equipment gas, bottle blowing.
42. fertilizer plant: Valve, instrument control, oxygen, nitrogen preparation, chemical reaction.
43. petrochemical plant: Valve, instrument control, oxygen, nitrogen preparation, chemical reaction.

Industrial Requirements

1. pressure requirements:

   • generally, the normal pressure range of industrial compressed air is 0.6~0.8MPa, but in practical applications, this range may be changed.
   • The pressure range of industrial compressed air can be between 0.7MPa(7bar) and 1.0MPa(10bar). This range is suitable for many pneumatic tools, automation equipment and other applications.
   • Certain applications, such as heavy machinery, pneumatic fixtures, or specific process equipment, may require higher gas pressures, such as 1.2MPa(12bar) or higher. On the other hand, some lightweight applications may only require a lower gas pressure, such as 0.5MPa(5bar) or less.

2. Temperature requirements: The temperature of compressed air is generally not more than 40 degrees Celsius to avoid the impact on equipment and processes.

3. Requirements for dryness:

   • the moisture content in compressed air is required to be low, and the dew point temperature is usually required to be below -20 degrees Celsius to avoid corrosion and pollution to equipment and processes.
   • The pressure dew point of compressed air used as an instrument is generally required to be below -40 degrees Celsius, while the pressure dew point of compressed air for semiconductor chip factories is required to be -70 degrees Celsius.
   • Different processes have different requirements for the dew point temperature of compressed air. Refrigerated dryers can be used if the pressure dew point is above 0 degrees Celsius, and adsorption dryers are preferably used if the pressure dew point is between -20 degrees Celsius and -70 degrees Celsius.

4. Oil content requirements:

   • the oil content in compressed air is required to be low, and the oil content is usually below 5 mg/m3 to avoid pollution to equipment and processes.
   • Some industries have very high requirements for the quality of compressed air, and the oil content in compressed air should be less than 5ppm(parts per million).

5. PURIFICATION REQUIREMENTS:

   • the impurities and particles in the compressed air are required to be low, and the filtration level is usually below 5 microns to ensure the purity of the air.
   • Some industries have very high quality requirements for compressed air, requiring solid particles in the compressed air to be less than 5 microns in size.

6. Cleanliness requirements: Compressed air can not have impurities, moisture, grease and other substances. For example, in the food processing industry, compressed air must meet food safety standards, while in the pharmaceutical industry, compressed air must meet GMP standards for clean compressed air for pharmaceutical use.

7. Odor and taste requirements: Compressed air should not contain malodor or peculiar smell to ensure the comfort and safety of the working environment.

In general, compressed air is widely used in industry and has strict requirements on its quality, pressure, temperature, dryness, oil content, purification, cleanliness, smell and taste. These requirements are designed to ensure that compressed air can meet the needs of different industrial applications, and ensure the smooth progress of the production process and stable product quality.