What is the reason for the high energy consumption of screw air compressor

A large amount of data shows that the main cost of compressed air system is spent on operation. In its life cycle, operating costs (electricity) account for 78 to 92%. Therefore, how to tap the potential of energy consumption and improve energy efficiency through fine management is a subject that every enterprise must face. So what are the reasons for the high energy consumption of screw air compressors?

According to a large number of production data obtained from on-site investigation and testing, combined with engineering experience, it is found that the main reasons for the high energy consumption of most compressed air systems are as follows:

1. Low efficiency of screw air compressor equipment

most of the air compressors configured a few years ago are low-energy-efficient equipment, which are unreasonably matched with terminals and other equipment, and only meet the basic needs of production. After that, the air compressor has no centralized control. When the air consumption varies randomly, the air compressor will be seriously wasted due to unloading. Unreasonable terminal equipment gas consumption, low efficiency, waste of equipment gas.

2. Unreasonable air supply pressure of screw air compressor

there is no hierarchical planning for the gas supply pressure, but the high-pressure gas supply and mechanical self-operated pressure reducing valve are only used to meet different pressure requirements, wasting a lot of energy on the valve. In addition, when the demand-side gas consumption changes cause random fluctuations in the pipe network pressure, in order to avoid frequent start and stop of the unit, it is necessary to set a large range of pressure changes, which will lead to large fluctuations in the outlet pressure of the air compressor and increase the air compressor system. Operating energy consumption.