Air compressors are the basic products of industrial modernization. Air compressors provide air source power and are the core equipment of pneumatic systems. They are the main body of electromechanical air source devices. They are devices that convert the mechanical energy of the prime mover (usually an electric motor) into gas pressure energy. They are compressed air pressure generating devices. Next, the editor will introduce you to the ten main principles of air compressor selection, hoping to help you!
01
Purpose of compressed air.
02
Minimum operating pressure.
03
Required air volume at the tip and off-peak. If the difference between the highest and lowest operating pressures reaches 3bar, it is necessary to consider "high and low pressure diversion", and then select different types of air compressors according to the changes in the load of the tip and off-peak, such as "base load" using centrifugal (single machine>75CMM) or spiral (single machine<60CMM): "variable load" using high-pressure air machines and large air storage tanks to cope with.
04
Select and configure dryers and precision filters of different forms and grades according to different gas quality. Excessive quality wastes energy, and insufficient quality affects the process, which must be carefully considered.
05
The control technology of air compressors is changing with each passing day. Technologies such as "multi-machine interlocking", "variable frequency and speed" and "remote monitoring" can effectively suppress the waste of centrifugal BOV and spiral empty cars (saving 25-40% of electricity costs), reduce spare machine capacity and investment (15-30%), and stabilize the air supply pressure (plus or minus 0.1 bar).
06
The operating efficiency cannot only compare the nominal horsepower and air volume on the catalog. The focus is on the actual "performance curve" and "air volume per horse".
07
The installation considers the size of the machine room space, ventilation conditions, noise isolation, waste heat, wastewater recovery, etc., which all affect the use of energy. In addition, "centralized" has lower installation, maintenance and control costs than "distributed", and can also reduce peripheral equipment. Regional market
08
As for the cooling method, there are two types: air cooling and water cooling. Air cooling does not require additional investment in cooling tower rainwater, but must have good ventilation: water cooling is that the operating temperature is not affected by the environment, which is beneficial to the life of the air compressor, but the only disadvantages are ice bursting and blockage.
09
Power supply planning requires voltage requirements and voltage drop stability. Centrifuges are usually high voltage and cannot be moved at all. When they are started, they will cause impact on the power grid and should be kept running regularly.
10
The maintenance room should have appropriate maintenance space and necessary lifting facilities and access channels. Engineering personnel and maintenance personnel should also receive different maintenance professional training.
