Basic knowledge of compressed air system

1. Compressed air

Refers to air with an absolute pressure greater than 0.1Mpa

Second, the prescribed working conditions of the screw air compressor

Inspiratory pressure: 0.1Mpa (absolute pressure)

Inhalation temperature: 20℃

Inspiratory relative humidity: 0

3. Air compressor exhaust pressure

Refers to the pressure measured at the standard exhaust position of the air compressor

4. Air compressor exhaust temperature

Refers to the temperature measured at the standard exhaust position of the air compressor

V. Air compressor displacement

The actual volume flow of the compressed air compressed and discharged by the air compressor at the exact discharge position. The flow rate should be converted to the suction condition

Six, specific power

Compressor shaft power required to compress a unit volume of air

7. Air compressor noise

Refers to the noise sound pressure level measured in an environment where the reflection plane is larger than the projection of the measurement surface on a wide outdoor courtyard

8. Fuel consumption of air compressor

The quality of lubricating oil required to compress a unit volume of air

Nine, adsorption type noise dryer

A noise filter that separates water vapor in compressed air by adsorbing molecules in the gas or liquid phase on the adsorption surface. The adsorbent can remove the adsorbed water and regenerate 10. Inlet volume flow

Converted to the maximum volume flow rate of compressed air entering the dryer (including regeneration, pressurization or cooling air) under the specified operating conditions with an absolute pressure of 0.1Mpa and a temperature of 20°C

11. Pressure dew point

Corresponding to a certain pressure, the temperature at which water vapor in the compressed air starts to condense into a liquid state

12. Oil content of compressed air

The mass of oil (including oil droplets, suspended particles, and oil vapor) contained in a unit volume of compressed air, converted to a value under suction conditions

13. Dust content of compressed air

The mass of dust contained in a unit volume of compressed air, converted to a value under suction conditions

14. Moisture content of compressed air

The sum of the mass of water and water vapor in a unit volume of compressed air

15. PPM

A symbol indicating the content of trace substances in a mixture, which refers to the number of parts per million or parts per million

16. Compressed air filter

Equipment for separating and filtering pollutants in compressed air

17. Freeze dryer

A dryer that separates water vapor through a refrigeration cycle

18. Effective volume flow (air supply)

Converted to the specified operating conditions with an absolute pressure of 0.1Mpa and a temperature of 20°C, the maximum volume of compressed air that the dryer removes, that is, the remaining part of the air flow for regeneration, supercharging or cooling is deducted

19. Gas consumption (gas demand)

Corresponding to a certain working condition, the sum of the compressed air flow required by all the gas equipment

Twenty, pressure zone

The range of pressure fluctuations in the compressed air system, that is, the difference between the maximum and minimum system pressure