As the second largest power source, air kinetic energy is now widely used in the production and manufacturing of various industries. Air compressor equipment is widely used, and the current problems it has need to be paid more attention to. The main problems in the air compressor system are energy waste and high power consumption. Governing the energy consumption problems in the compressed air system can avoid huge losses.
Leakage control
The average leakage of compressed air in the factory is as high as 20~30%, so the first task of energy saving is to control leakage. All pneumatic tools, hoses, joints, valves, a small hole of 1 square millimeter, under a pressure of 7bar, the loss is almost 4,000 yuan a year. Check the leakage of air compressor pipelines and optimize the design of pipelines.
Pressure drop treatment
Pressure gauges are set up in each section of the pipeline. Generally, the pressure drop from the air compressor outlet to the factory use point cannot exceed 1bar. More strictly, it cannot exceed 10%, that is, 0.7bar. The pressure drop of the cold dry filter section is generally 0.2bar. Check the pressure drop of each section in detail, and maintain it in time if there is a problem. Every kilogram of pressure increase increases energy consumption by 7%.
Centralized control
The centralized linkage control of air compressors can avoid the step-by-step exhaust pressure rise caused by the parameter setting of multiple air compressors, which causes energy waste of output air.
Reduce the intake temperature
Since the internal temperature of the general air compressor station is higher than that of the outdoor, outdoor air collection can be considered. Do a good job of equipment maintenance and cleaning, increase the heat dissipation effect of the air compressor, the exchange effect of water cooling, air cooling and other heat exchangers, maintain oil quality, etc., and reduce energy loss.
Use high-efficiency compressors
For variable working conditions, the use of high-efficiency permanent magnet variable frequency screw air compressors is conducive to energy saving. At present, the domestic leading high-efficiency permanent magnet variable frequency screw air compressor, its permanent magnet motor saves more than 10% energy than ordinary motors; it has constant pressure air, will not cause pressure difference waste; it produces as much gas as it uses, without loading and unloading, etc., which saves more than 30% energy than ordinary industrial frequency air compressors.
Assess the pressure requirements of gas-using equipment
While ensuring production, the exhaust pressure of the air compressor should be lowered as much as possible. Many gas-using equipment only requires 3~4bar. Every 1bar reduction in pressure can save about 7% of energy.