Quality appraisal of refrigeration compressor

Refrigeration compressor is the main equipment in the refrigeration device and is usually regarded as the host machine in the refrigeration device. The increase of refrigerant vapor from low pressure to high pressure and the continuous flow and transportation of gas are all accomplished with the help of the work of refrigeration compressor. Refrigeration compressors are mainly used in air conditioners, heat pump water heaters and other industries.
Refrigeration compressor is the main equipment in the refrigeration device and is usually called the host in the refrigeration device. The increase of refrigerant vapor from low pressure to high pressure and the continuous flow and transportation of gas are all accomplished with the help of the work of the compressor.
In the case of refrigeration compressor quality appraisal, Zhongke Testing can provide refrigeration compressor quality appraisal services.

1. Compressor appearance: First check the appearance of the compressor, including the casing, connecting pipes, valves and other parts. Make sure there is no obvious damage, corrosion or deformation to the housing and that connecting pipes and valves are intact.
2. Refrigerant circulation part: Check the refrigerant circulation part of the refrigeration compressor, including components such as condenser, evaporator and cooling condenser. Make sure these components are not leaking, corroded or clogged.
3. Compressor operating status: Observe the operating status of the compressor, including vibration, noise and temperature. A properly functioning refrigeration compressor should maintain stable vibration and noise levels, as well as proper temperature control.
4. Electrical system inspection: Check the electrical system of the refrigeration compressor, including wires, switches, protection devices, etc. Ensure electrical systems are safe, reliable and comply with appropriate electrical standards and specifications.
5. Power transmission system: Check the power transmission system of the refrigeration compressor, including drive motor, belt drive, etc. Make sure the drivetrain is operating properly, the belt is properly tensioned, and there is no obvious abnormal wear or breakage.
6. Efficiency and performance evaluation: Evaluate the efficiency and performance of the compressor. You can refer to the technical data and performance parameters provided by the manufacturer to check whether the actual working effect and energy consumption are consistent with the design requirements.

GB/T10079-2001 Piston single-stage refrigeration compressor
QB/T 4988-2016 Refrigeration compressor slider for household and similar air conditioners
JB/T 12255-2015 Refrigeration compressor sintered valve plate, connecting rod and piston technical conditions
JB/T 12226-2015 Brushless DC motor for hermetic refrigeration compressor
JB/T 6906-1993 Oil-injected screw single-stage refrigeration compressor
JB/T 6738-2011 Single-phase asynchronous motor for hermetic refrigeration compressor General technical conditions
JB/T 6915-1993 Refrigeration compressor for automobile air conditioners Test method
JB/T 6421-1992 Technical requirements for gray iron castings for refrigeration compressors
CB/T 3710-1995 Technical requirements for repair of marine Freon piston refrigeration compressors
CB/T 3460-1992 Marine Freon piston refrigeration compressors
0GB/T 19410-2008 Screw refrigeration compressor
1GB/T 29030-2012 Volumetric CO2 refrigeration compressor (set)
2GB/T 27940-2011 Volumetric single-stage refrigeration compressor parallel unit for refrigeration
3GB/T 13501-2008 Test method for insulation compatibility of electric motors for hermetic refrigeration compressors
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A refrigeration compressor purchased by an electrical appliance company exploded during the installation process, killing one person, and a dispute arose with the equipment manufacturer.
was entrusted by the court to conduct an appraisal and analysis on "whether there are quality problems" in the refrigeration compressor involved.
appraisal analysis results: The
appraisal analysis expert group discussed the relevant information and on-site investigation of the refrigeration compressor involved in the case and made a comprehensive quality and technical analysis, and made the following suggestions and conclusions:
1, the direct cause of the cracking of the motor end cover and shell of the refrigeration compressor involved in the case was due to the injection of high-pressure medium from the outside, which caused the internal pressure of the compressor body to exceed its designed maximum working pressure.

2. The cracked compressor has no air tightness test and pressure test records, and does not meet the requirements of the national standard GB/T10079-2001 "Piston Single-stage Refrigeration Compressor". Therefore, compressor cracking cannot rule out compressor manufacturing quality factors.