1. It is necessary to correctly interpret the working standards of air compressors in China.
At present, the state only stipulates the difference of power frequency machine's efficiency grade standard, and there is no difference standard of energy efficiency grade for the time being.
2. Need to correctly interpret the test conditions of national level 1 energy efficiency
Specific power stipulated by the state refers to the input specific power of power frequency screw air compressor under full loading condition, and then according to the energy efficiency standard to distinguish the energy efficiency level. However, at present, many brands of air compressors in the domestic market advocate the national level 1 energy efficiency products are basically permanent magnet frequency conversion products. The optimal specific power values are mostly measured under the non-100% load condition of the frequency conversion air compressor, which represents only an instantaneous optimal working condition, not the actual energy efficiency condition of most of the machine operation time.
3. The brand of air compressor that promotes grade 1 energy efficiency products should be treated correctly.
Foreign brands strictly implement the national standards for energy efficiency grade labeling, and their data reliability is relatively higher.
4. The judgement organization of national energy efficiency certification needs to be treated correctly
Because the air compressor efficiency determination testing organization belongs to the third party, but if the production enterprise testing equipment conforms to the national regulations, it can also test and determine the energy efficiency by itself, and submit the certification request to the third party organization. After being approved, the relevant certification effect will be publicized on the energy efficiency identification official website of our country. However, such energy efficiency declaration and publicity criteria will inevitably have some loopholes in the current domestic integrity environment, and then lead some enterprises to exaggerate the energy efficiency promotion effect of the first-level energy efficiency products.
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