Air compressor parameters and selection

for compressed air, the user's requirements are also different, so the technical indicators for calibrating compressed air are: pressure, flow, and quality. Every user ultimately needs a certain pressure, a certain flow, a certain quality of compressed air.

01. Selection of working pressure

working pressure, usually called exhaust pressure, working pressure refers to the highest pressure of the air compressor discharge gas; There are many expressions of pressure units. The commonly used working pressure units are: Mpa or bar,1Mpa = 10bar; The pressure unit is usually called: Kg (kg) 1bar = 1Kg. When preparing to buy an air compressor, first determine the working pressure required by the gas end, add a margin of 1-2bar, and then select the pressure of the air compressor.

02. Volume flow

volume flow is usually called exhaust volume. Volume flow refers to the volume of gas discharged from the air compressor per unit time under the required exhaust pressure, which is converted to the intake state; the volume flow unit is: m3/min (Cubic/minute) or L/min (liter/minute),1m3 (cubic) = 1000L (liter); the commonly used flow unit is m3/min (cubic per minute). Should first understand the gas consumption of all gas equipment, the general recommendation is that the air compressor exhaust volume needs to be 1/4 larger than the total gas consumption of gas equipment, which is conducive to overload and the use of additional dust blowing in daily work.

03, the power of the air compressor

the power of the air compressor refers to the nameplate power of the matching drive motor or diesel engine; the unit is KW (kilowatts) or HP (horse/horsepower),1KW is about 1.333HP. The selection power of the air compressor is to meet the working pressure and volume flow conditions, the power supply capacity can meet the use of power.

Power frequency and frequency conversion

power frequency and frequency conversion selection, if the daily working time is more than 20 hours, it is recommended to buy permanent magnet frequency conversion air compressor, permanent magnet plus frequency conversion adjustment machine, primary energy consumption is conducive to energy saving. If the daily working hours are short and the gas consumption time is less, it is recommended to choose a cheap and durable power frequency air compressor. Both have their own advantages and choose according to their own needs.