1. Replace the piston machine. Although the industry has entered the era of screw compressors for nearly 20 years, at present, piston compressors are the most used domestic air compressors. Compared with traditional piston compressors, screw air compressors have the advantages of simple structure, small size, higher reliability, stability, and simple maintenance. The market share of screw air compressors has been increasing year by year. Especially in recent years, energy-saving screw compressors have emerged continuously, and various companies are vying to launch products that exceed the national energy efficiency grade standards.

2. Control leakage. The average leakage of compressed air in factories is as high as 20-30%, so the primary task of energy saving is to control leakage. All pneumatic tools, hoses, joints, valves, a small hole of 1 square millimeter, under the pressure of 7bar, will lose almost 4,000 yuan a year. It is urgent to check the leakage of the air compressor pipeline and optimize the design of the pipeline.

3. Pressure drop management. Pressure gauges are installed at each section of the pipeline. Generally, when the air compressor is exported to the point of use in the factory, the pressure drop cannot exceed 1 bar, and more strictly, it cannot exceed 10%, that is, 0.7 bar. The pressure drop of the cold-drying filter section is generally 0.2 bar, check the pressure drop of each section in detail, and repair it in time if there is any problem. (Each kilogram of pressure increases the energy consumption by 7%-10%).

4. Evaluate the pressure requirements of gas equipment. In the case of ensuring production, the exhaust pressure of the air compressor should be lowered as much as possible. The cylinders of many gas-consuming equipment only need 3~4bar, and a few manipulators only need more than 6bar. (For every 1bar lower pressure, energy saving is about 7~10%).

5. Adopt high-efficiency compressor. For variable working conditions, high-efficiency permanent magnet variable frequency screw air compressors are used to save energy. At present, the leading high-efficiency permanent magnet frequency conversion screw air compressor in China, its permanent magnet motor can save energy by more than 10% compared with ordinary motors; it has the advantages of constant pressure air without causing pressure difference waste; it uses as much air as it needs, and does not need to be loaded and unloaded. . More than 30% energy saving than ordinary air compressors.

6. Centralized control. The centralized linkage control of air compressors can avoid the stepwise exhaust pressure rise caused by the parameter setting of multiple air compressors, resulting in waste of output air energy.

• Reduce the intake air temperature of the air compressor. Because the internal temperature of the general air compressor station is higher than the outdoor temperature, outdoor gas extraction can be considered. Do a good job of maintaining and cleaning the equipment, increasing the heat dissipation effect of the air compressor, the exchange effect of heat exchangers such as water cooling and air cooling, and maintaining oil quality, etc., all of which can reduce energy consumption.

Sollant Group-Professional Compressed Gas Solutions Provider