When buying an air compressor, you should first consider the following aspects:

1. Exhaust pressure:

Generally, the atmospheric pressure is 0.8Mpa, and the larger the exhaust pressure of the compressor, the more energy is consumed. The sum of the pressure, the resistance loss of the pipeline and the pressure drop of the associated equipment is determined as the lower limit of the rated exhaust pressure of the air compressor. Under normal circumstances, the diameter of the pipeline should be selected to be larger to reduce Resistance loss, to achieve long-term operation to reduce energy consumption. The greater the exhaust pressure of the air compressor, the more energy is consumed. Http://www.fsair.cn So do not use air compressors with excessive exhaust pressure.

The choice of air compressor is based on the maximum courage pressure of the gas supplier to avoid insufficient pressure during actual use. However, if the gas pressure of most equipment is low, and only a small part of the gas pressure is high, it is necessary to carefully consider the pressure selection when purchasing equipment. You can consider using another high-pressure air compressor, otherwise energy consumption will increase. What is the exhaust pressure? The term “pressure” in the compressor industry refers to pressure (P) and exhaust pressure refers to the pressure at the air outlet after the air has been compressed.

2. Exhaust volume:

Calculate the actual total gas consumption ╳1.1-1.2 coefficient, as the model of the selected exhaust volume, if the selection is too low, it can not reach the specified value of the gas equipment, the selection is too large, it is a waste of electricity, and at the same time Air compressors with large displacements are expensive to purchase.

3. Requirements for compressed air quality:

According to the requirements of the gas equipment for the compressor gas in the industry, the compressor and supporting equipment should be selected appropriately. There are several things to consider:

1) To reduce the oil content in the compressed gas, a degreasing purifier can be used. If the treatment index is high, multi-stage treatment can be used.

2) Reduce the water content in the compressed gas, which can be matched with water removal equipment.

A. The freeze dryer can be used to achieve a dew point temperature of -23 °C.

B. If the requirement is higher, the adsorption dryer can be used, and the dew point temperature can be -40 °C.