Eight steps to energy saving and environmental protection of air compressor
Views : 867
Author : Runningway
Update time : 2020-12-09 15:58:53
Recently, many topics have been mentioned about the energy saving of air compressors. Air compressors are an important load in industrial production and one of the general equipment in the manufacturing industry. Doing a good job of energy-saving management of air compressors is one of the tasks to realize energy saving in enterprises. So let's talk about eight commonly used methods of air compressor energy saving.
1. Governance leakage
According to calculations, a small hole of 1mm2, under a pressure of 7bar, the leakage is about 1.5L/S. Check all the transmission pipe network and gas points, especially the joints, valves, etc., and deal with the leakage points in time.
2. Pressure drop treatment
Set up pressure gauges to detect pressure through pipeline sections, check your pressure drop in each section in detail, and check and maintain the problematic pipe network section in time. Generally, the pressure drop from the outlet of the air compressor to the point of use should not exceed 1 bar, even less than 10% or 0.7 bar. The pressure drop of the cold-dry filter section is generally 0.2 bar. The factory tries to arrange a ring-shaped pipe network to balance the gas pressure at various points.
3. Adjust the pressure matching of gas equipment
Evaluate the pressure requirements of the gas equipment, and reduce the exhaust pressure of the variable frequency air compressor as far as possible while ensuring production. Every time the exhaust pressure of the air compressor decreases by 1 bar, the energy saving is about 7-10%.
4. Adjust unreasonable gas use behavior
According to authoritative data, the electric energy utilization rate of ordinary power frequency air compressors is only about 10%, and about 90% is converted into heat energy. It is necessary to evaluate the pneumatic equipment used in the factory and whether it can be solved by electric methods. At the same time, the use of compressed air for routine cleaning should be resolutely eliminated.
5. Adopt centralized control mode
If the number of air compressors is small, a frequency conversion air compressor can be used to adjust the pressure. If the number is large, centralized linkage control can be used to avoid the stepped exhaust pressure increase caused by the parameter setting of multiple air compressors.
6. Do a good job in equipment maintenance and cleaning
Increase the heat dissipation effect of the screw air compressor, the exchange effect of water-cooled, air-cooled and other heat exchangers, and maintain the oil quality.
7. Air compressor waste heat recovery
The heat of the air compressor oil system is recovered to prepare hot water for use in other processes or auxiliary living facilities.
8. Transformation of drying system
The new drying equipment uses the waste heat of compressed air to dry and dehydrate the compressed air, and the energy saving rate exceeds 80%.
The above-mentioned methods are basically symptomatic treatments. Now the basic approach to cure the root causes is to use more permanent magnet variable frequency air compressors.
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