10 steps to choose an air compressor

When building an air system, in addition to the purchase cost, how to save high-frequency electricity expenses? How to extend the life of the air machine? How to stabilize the air supply pressure? And how to reduce environmental noise and pollution? It is a problem that users expect to solve: how to correctly select an air compressor in the initial stage of setup plays a key factor.

  When choosing an air compressor, you must first understand the

   (1) Compressed air application

   (2) Minimum operating pressure and

   (3) The demand air volume at the tip and off the peak. If the difference between the highest and lowest operating pressure reaches 3bar, you must consider the "high and low pressure diversion", and then choose different types of air compressors according to the changes in the peak and off-peak burdens, such as the "base load" using centrifugal (single machine> 75CMM) or spiral type (single machine <60CMM): "Variable load" uses a high-pressure air machine and a large air tank to respond.

  (4) Different forms and grades of dryers and precision filters are selected and configured according to different gas quality. Too good quality wastes energy, and insufficient quality affects the production process, which must be carefully considered.

(5) The control technology of the air machine is changing with each passing day. The technologies such as "multi-machine interlocking", "variable frequency transmission" and "remote monitoring" can effectively suppress the waste of centrifugal BOV and spiral empty cars (saving electricity costs by 25-40%) , Reduce the capacity and investment of the standby machine (15-30%), and stabilize the air supply pressure (plus or minus 0.1 bar). Air machine

   (6) The operating efficiency cannot only be compared with the nominal horsepower and air volume in the catalog, but the focus is on the actual "performance curve" and "air volume per horse".

   (7) The installation considers the size of the computer room space. Ventilation conditions, noise isolation, waste heat, waste water recycling, etc. all induce energy use. In addition, "centralized" has lower installation, maintenance and control costs than "distributed", and can also reduce peripheral equipment.

(8) As for the cooling methods, there are two types of cooling methods: 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 that the operating temperature is not affected by the environment and is beneficial to the life of the air compressor. There are shortcomings of icing burst and blockage.

   (9) The power supply planning voltage demand and the stability of the voltage drop must be required. The centrifuge is usually high-voltage and cannot be moved at all. It will cause an impact on the grid when starting, and it should be kept in regular operation.

   (10) The maintenance room must have appropriate maintenance space, necessary lifting facilities and access channels, and the engineering personnel and maintenance should also be given different professional maintenance training.