How does an air compressor save electricity?

What is specific power? The specific power is to divide the input power of the air compressor unit (Note: if the motor power of an air compressor is 37KW, then it refers to the output power, and the actual operation is larger than 37KW) by the actual gas production. The value of is the input specific power of the air compressor, the unit is KW/M3/min. According to the GB19153-2009 standard, by querying the motor power, exhaust pressure, cooling method, etc., you can see whether each air compressor belongs to the first-level energy efficiency, or the second-level or third-level energy efficiency.

37KW screw air compressor with gas output of 6 cubic meters per minute and working pressure of 8 kg, after inquiry, 7.2KW/M3/min is the dividing line between primary energy efficiency and secondary energy efficiency, and less than 7.2 belongs to primary energy efficiency; 8.1KW/M3/min is the dividing line between secondary energy efficiency and tertiary energy efficiency, between 7.3-8.1 belongs to secondary energy efficiency, 8.9KW/M3/min is the access value of whether the air compressor can be produced and put into the market, 8.2 Between -8.9 is the third-level energy efficiency, and if it is greater than 8.9, it is a super power-consuming product, and the state does not allow it to be produced. (Note: The input specific power of the air compressor can be checked on the official website of the China Energy Efficiency Labeling website. Now let's make a comparison. For a 6-cubic air compressor, one of the manufacturer's standard specific power is 7.1KW/M3/min (level 1). energy efficiency), and another air compressor manufacturer’s target is 8.6KW/M3/min (three-level energy efficiency), then the first-level energy efficiency air compressor saves electricity per hour compared to the third-level energy efficiency air compressor = (8.6-7.1) *6 = 9 kWh of electricity, 1 yuan per hour of industrial electricity, 10 hours a day, 300 days a year, then you can save 9*10*300=27,000 yuan a year.

The investment of the air compressor used in the factory consists of three parts, one is the initial purchase cost, the other is the daily operation cost, which is the electricity cost, and the third is the maintenance cost. Usually, the initial purchase cost actually only accounts for the total investment. very small portion. Therefore, when users buy an air compressor, they should know more about the specific power of the air compressor. The purchase price of a good air compressor is more expensive than that of some cheap brands of air compressors, but the electricity bills saved can be recovered within a year. Now, an air compressor will take ten to eight years at least, so let the user do the calculation.

screw air compressor