What principle is used by the stepless air volume control installed in reciprocating compressors to achieve energy savings?
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Could someone explain it to me? Briefly is fine! Thank you
Variable air volume adjustable from 0-100! Achieve power savings by adjusting the load!
The load can be adjusted from zero to 100; I think this is done first to save electricity and energy, and secondly to accommodate changes in process parameters
Appropriate work is done as needed; fundamentally, less work is done, which results in energy savings!
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It was developed based on the principle of saving energy through backflow in compressors; by using hydraulic actuators to adjust the closing time of the intake valve, the amount of air compressed can be changed. Only the amount of air required is compressed, thereby avoiding unnecessary work and achieving energy savings
What in the compressor does this change from 0 to 100 affect?
For learning*, our workshop’s level 3 compressors also make use of this
Isn’t that basically the same principle as a unloader?
The unloader offers stepwise adjustments at 0, 25, 50, 75, and 100, with a very narrow range of adjustment; in contrast, the continuously variable adjustment system provides a much wider range of adjustment, allowing values from 0 to 100. Moreover, continuous variable adjustment can also balance the pressure ratio, resulting in smoother operation of the compressor
By controlling the closing time of the intake valve, the amount of air entering the cylinder is regulated, thereby enabling theoretical adjustment of the load between 0 and 100. However, due to concerns regarding temperature rise, operations are generally carried out within the range of 10 to 100