How to calculate the air consumption of known equipment and how much air compressor is needed

When the gas consumption of the equipment is known, calculating the size of the air compressor required involves two key aspects: pressure and gas consumption. The following are the specific calculation steps:

determine pressure requirements:

understand the normal pressure range of all equipment, and take the maximum and minimum values.

The air compressor is selected according to the maximum increase of 1kg pressure, which is to take into account the pressure loss and pipeline pressure loss of the air compressor after-treatment equipment.

Calculation of air consumption:

know the rated gas consumption (Q) of all gas-consuming equipment and accumulate them.

Understand the simultaneous start-up rate (a%) of the whole process, and then multiply Q by a% to obtain the demand (Q1).

Considering the backup machine of the air compressor and the problem of increasing the air consumption in the later period, the margin of 10% to 20% is increased, that is, the displacement of the air compressor that needs to be deployed.

For example, if the required gas volume is 75 cubic meters, you can consider purchasing three 40 cubic meters of air compressors and adopt the "open two for one" method. If the required gas volume is 375 cubic meters, then 6 100 cubic meters of air compressors can be purchased, and the method of "opening four and preparing two" is adopted.

In addition, the air volume of the air compressor is usually calculated in cubic per minute (m & sup3;/min). Therefore, in the calculation, it is necessary to determine the required air compressor size according to the air consumption per minute when the equipment is used. For example, if the equipment requires 7 cubic meters of air consumption per minute, an air compressor greater than 7 cubic meters should be selected, such as 7.5m & sup3;/min air compressor.

Please note that the above is only a general guide, the actual choice of air compressor also need to consider other factors, such as the specific working conditions of the equipment, ambient temperature, altitude and so on. If in doubt, it is recommended to consult a professional air compressor supplier or engineer for more accurate advice.