When selecting an air compressor, there are three main considerations: control method, exhaust volume, and exhaust pressure. If the user does not know the relevant professional knowledge, he needs to inform the manufacturer of the actual use requirements, and proceed according to the needs. Purchase, today we will introduce the basic purchase logic.
According to the important technical indicators of the air compressor, there are three main problems in the selection and configuration of the air compressor:
1. The choice of air compressor control mode
1. Air conditioning control: the exhaust pressure of the air compressor reaches the upper limit pressure, the air compressor is unloaded, and the air compressor reaches the lower limit pressure. Generally used in air systems with large air consumption and frequent loading and unloading operations.
2. ESC control: when the exhaust pressure of the air compressor reaches the upper limit pressure, the air compressor stops running, and reaches the lower limit pressure to start operation. Generally used in air systems with small air consumption and infrequent loading and unloading operations.
2. Displacement of air compressor
1. The compressor displacement refers to the gas volume of the last stage of the compressor per unit time converted to the pressure and temperature of the first stage of the inlet state.
2. Select the compressor with excessively large displacement, large investment and high operating cost.
3. The displacement of the compressor is too small, the supply is less than the demand, the working pressure is not reached, and the compressor has a heavy load.
3. Exhaust pressure of air compressor
1. The working pressure is greater than the sum of the working pressure of the gas point and the system pressure loss.
2. The greater pressure is the greater upper limit pressure of the air compressor exhaust.
3. The piston air compressor uses the pressure difference between the upper limit pressure and the lower limit pressure of the exhaust pressure to control the loading and unloading or shutdown of the air compressor. (Screw air compressor has intelligent and constant pressure control.)
4. The lower limit pressure of the piston air compressor must be greater than the working pressure.
5. The selection of the exhaust pressure of the air compressor must take into account the pressure difference in the control.
The above is the whole content of the detailed explanation of the selection and configuration of the air compressor, and I hope it will be helpful to our customers!