Description of refrigeration compressor maintenance methods

Description of refrigeration compressor maintenance methods This article mainly describes the related content of the maintenance methods of refrigeration compressors 1. Frequently check whether there are debris or even conductive objects in the motor, whether the coil is damaged, and whether the stator and rotor are rubbed, otherwise the motor will burn out after starting; 2. Pay attention to the hygiene of the compressor and the equipment and environment of the constant temperature and humidity test chamber. Clean the ash on the compressor condenser regularly. Excessive dust accumulation will cause the equipment to have overpressure or no refrigeration failure 3. Observe whether the oil level in the oil sump of the fuselage and the lubricating oil in the lubricator are below the scale line. 4. Carefully check the movement sounds of cylinders and moving parts of the constant temperature and humidity test chamber. According to "listen", distinguish whether its working conditions are normal. If abnormal sounds are found, stop immediately and check; 5. The lubricating machine used should be precipitated and filtered. Compressor oil should be used separately in winter and summer. 6. If it is a water-cooled compressor, if the water cannot be passed immediately after the water is cut off, it is necessary to avoid cylinder cracks due to uneven heating and cooling. In winter, the cooling water should be released to avoid freezing cracks in the cylinder and other places; It can be cold and hot, manufacturers recommend that it is best to put it in a standard laboratory, equipped with air conditioning, the temperature can be constant at 25-28 degrees. 7. Test whether the temperature of the suction and exhaust cover at the cross rail of the high and low temperature alternating humidity and humidity test box is normal with hand feeling; 8. Check whether the cooling water temperature and flow rate of the constant temperature and humidity test chamber are normal; 9. Check whether the compressor vibrates and the anchor bolts are loose or falling off; 10. Pay attention to whether the indication values ​​of the pressure gauges at all levels in the constant temperature and humidity test chamber, the pressure gauges on the gas storage tank and the cooler and the lubricating oil pressure gauge are within the specified range; 11. Check the lubricating oil supply of the constant temperature and humidity test chamber, and the lubricating system of the motion mechanism (some compressors are equipped with a plexiglass baffle on the side of the crosshead rail of the fuselage, which can directly see the crosshead movement and the lubricant Supply situation); The cylinder and the packing can be checked for oil draining by one-way logging, and the oil injection of the oil injector into the cylinder can be checked; 12. Pay attention to whether the temperature rise of the motor, bearing temperature, voltmeter and ammeter indicate normal conditions, and the current must not exceed the rated current of the motor. If it exceeds, check the cause or stop the inspection; 13. Is there any abnormal noise when the motor is heating up 14. Check whether the pressure regulator or load regulator of the constant temperature and humidity test chamber is sensitive to safety cutting, etc .; 15. Regularly clean the refrigeration system, especially the copper tube and bottle body. Check the Freon balance regularly. 16. Air storage tank, cooler and oil-water separator should always release oil and water

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