Introduction of common pressure terms for oil-free air compressor

Oil-free air compressor brand, the market response to good Shanghai Grencklin Group specializes in air compressor research and development and production and sales of manufacturing enterprises.

Air compressor (English: air compressor), it is the main body of the air source device, which belongs to general machinery. It is a device that converts the mechanical energy of the motor into pressure energy or kinetic energy. It is used to increase the pressure of the air and is compressed air. Generating device.

The use of compressed air is generally divided into two categories:

power gas source: Compressed gas is used to drive other power machinery.

Process gas source: Compressed gas becomes an integral part of the final product.

air compressor commonly used terminology:

air compressor pressure: usually the discharge pressure given on the compressor nameplate is gauge pressure, not absolute. against the pressure.

Common pressure units: bar, MPa, air compressor industry said "kg" refers to "bar", that is, 1kg refers to 1bar,1MPa (MPa) = 1000kPa (kPa),1bar (bar) = 0.1MPa.

Air compressor volume flow: It is also called displacement or nameplate flow in China. The gas volume discharged by the air compressor per unit time is converted to the intake state, that is, the volume of suction. According to national standards, the air compressor The actual displacement of ± 5% of the nominal flow is qualified.

Common units: m3/min, L/s.

oil content of air compressor gas: the mass of oil (including oil droplets, suspended particles and oil vapor) contained in unit volume of compressed air, usually what we call PPM is the unit of weight ratio: PPM, and one millionth of 1kg is milligram.

Air compressor pressure dew point: refers to a certain pressure of the gas cooled to a certain temperature, which contains unsaturated water vapor into saturated water vapor precipitation, this temperature is the pressure dew point of the gas. Atmospheric dew point refers to the temperature at which the gas is cooled to the temperature at which the unsaturated water vapor contained in the gas is converted into saturated water vapor under standard atmospheric pressure. In the air compressor industry, the dew point indicates the degree of drying of the gas.

Specific power: refers to the power consumed by the compressor unit volume flow. It is an important index to evaluate the energy efficiency of the compressor. Air compressor specific power unit: KW/m3.

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