How to buy air compressor correctly

Air compressor is one of the main mechanical power equipment of many enterprises. Air compressor (English: air compressor) is the main body of air source device. It converts the mechanical energy of prime mover (usually electric motor) into gas pressure energy. The device is a pneumatic generating device for compressed air.

Selecting the key elements of the air compressor

1. Compressed air use.

2. Minimum use pressure.

3. Demand and off-peak demand air volume. If the difference between the highest and lowest use pressures is 3 bar, then the “high and low pressure split” must be considered, and then the air compressors of different models should be selected according to the change of the tip and off-peak load, such as “base load” using centrifugal type (single machine) 75CMM) or spiral (single machine <60CMM): "Variable load" uses a high pressure air machine and a large gas storage tank to respond.

4. According to different gas quality, choose and configure different types and grades of dryers and precision filters. Excessive quality wastes energy, and insufficient quality affects the process, which must be carefully considered.

5. The control technology of air compressors is changing with each passing day. The technologies of “multi-machine chain”, “frequency conversion” and “remote monitoring” can effectively suppress centrifugal BOV and spiral empty vehicle waste (saving electricity cost 25-40%) , reduce standby capacity and investment (15-30%), stable supply pressure (plus or minus 0.1bar).

6. Operational efficiency can not only compare the nominal horsepower and air volume on the catalogue, the focus is on the actual “performance curve” and “every horse volume”. 7. Installation Considering the size of the equipment room, ventilation, noise isolation, waste heat, waste water recycling, etc. all lead to the use of energy. In addition, "centralized" has lower installation, maintenance, and control costs than "distributed" and can also reduce peripherals.

8. As for the cooling method, there are two types of air cooling and water cooling. Air cooling does not require additional investment in cooling tower rainwater, but it must have good ventilation: water cooling is the operating temperature that is not affected by the environment, and is beneficial to the life of the air compressor. The shortcomings of icing bursting and blocking.

9. The power supply planning voltage demand and voltage drop must be stabilized. The centrifuge is usually high voltage and can't move at all. It will cause impact on the grid during startup and should be kept running frequently.

10. Maintenance equipment room should have proper maintenance space and necessary lifting facilities and access channels. Engineering personnel and maintenance should also be given different maintenance professional training.

Concerned about surprises

Tag: Air compressor Precision filter Air machine Power planning BOV

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