2026-04-14Views：
The operating efficiency of an air compressor is a key indicator of its performance, which is usually used. energy efficiency ratio or specific power to indicate. According to the standard of "energy efficiency limit value and energy efficiency grade of GB19153-2019 positive displacement air compressor", combined with industry data, the operating efficiency range of air compressor is as follows:
| Air compressor type | efficiency range | features |
|---|---|---|
| piston type | 60%-70% | the structure is simple, the cost is low, but the efficiency is low. |
| screw type | 70%-85% | smooth operation, low noise, high efficiency. |
| Centrifugal | 80%-90% | high efficiency and energy saving, suitable for continuous operation with large displacement. |
| variable frequency type | 75%-85% | automatically adjust the speed according to the load, the energy saving effect is remarkable. |
Summary: The operating efficiency of air compressors varies depending on the type, energy efficiency rating and conditions of use. 60%-90% between. Through reasonable selection, regular maintenance and optimized control, efficiency can be significantly improved and energy consumption costs can be reduced.
In the process of liquefied natural gas (LNG) production, the control of oil content is an important quality index, but the specific value range varies with the production process, raw gas quality and testing standards. The following is based on industry practice and technical information on the production of LNG.
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