Minimum allowable values of energy efficiency and energy efficiency grades for displacement air compressors
1 Scope
This standard specifies the energy efficiency grades, minimum allowable values of energy efficiency, test and calculation method of them for displacement air compressors.
This standard is applicable to:
a) oil injected rotary air compressor for general use with the drive motor power of 1.5 kw ~ 630 kW and the exhaust pressure of 0.25 MPa ~ 1.4 MPa (including oil injected screw air compressor for general use, oil injected single screw air compressor for general use, oil flooded sliding vane air compressor for general use and oil injected scroll air compressor for general use);
b) variable speed oil injected rotary air compressor for general use with the drive motor power of 2.2 kW ~ 315 kW and the exhaust pressure of 0.25 MPa ~ 1.4 MPa (including conversion frequency oil-flooded screw air compressor for general use and integrated permanent-magnet conversion frequency screw air compressor);
c) reciprocating piston air compressor for general use with the drive motor power of 0.75 Kw ~ 75 kW and the exhaust pressure of 0.25 MPa ~ 1.4 MPa (including reciprocating minitype air compressors and stationary reciprocating piston air compressor for general use);
d) oil-free reciprocating piston air compressors with the drive motor power of 0.55 Kw ~ 22 kW and the exhaust pressure of 0.4 MPa ~ 1.4 MPa;
e) direct drive portable reciprocating piston air compressors.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3853 Displacement compressors - Acceptance tests
GB/T 4975 Displacement compressors vocabulary - General
GB/T 13279 Stationary reciprocating piston air compressor for general use
GB/T 1392 Reciprocating minitype air compressors
GB/T 26967 Oil injected single screw air compressor for general use
JB/T 4253 Oil flooded sliding vane air compressor for general use
JB/T 6430 Oil injected screw air compressor for general use
JB/T 7662 Displacement compressor vocabulary - Rotating compressor
JB/T 8933 Oil-free reciprocating piston air compressors
JB/T 8934 Direct drive portable reciprocating piston air compressors
JB/T 9107 Reciprocating compressors - Vocabulary
JB/T 10972 Conversion frequency oil-flooded screw air compressor for general use
JB/T 11423 Oil injected scroll air compressor for general use
JB/T 13345 Integrated permanent-magnet conversion frequency screw air compressor
3 Terms and definitions
The following terms and definitions and those defined in GB/T 3853, GB/T 4975, GB/T 13279, GB/T 13928, GB/T 26967, JB/T 4253, JB/T 6430, JB/T 7662, JB/T 8933, JB/T 8934, JB/T 9107, JB/T 10972, JB/T 11423 and JB/T 13345 shall apply.
3.1
volume flow rate of packaged compressor
actual air volume flow at the standard exhaust position of the air packaged compressor, which is converted to that in the state of the full temperature, full pressure and composition at the standard suction position
3.2
packaged compressor input power; input power of air compressor
total input power required by the air packaged compressor to enable output of compressed air
Note: The total input power excludes the power used for treating equipment after compressing air integrated in the air packaged compressor.
