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    Refrigeration compressor maintenance guide

    Refrigeration compressor maintenance guide The refrigeration compressor is the core and heart of the refrigeration system. The capacity and characteristics of the compressor lead to the capacity and characteristics of the refrigeration system. So how to maintain the refrigeration compressor during daily use? 1. Frequently check the motor for debris or even conductive objects, 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 its equipment and the environment of the constant temperature and humidity test chamber, and regularly clean the ash on the compressor condenser. Because too much dust accumulation will cause the equipment to appear overpressure or no refrigeration failure; 3. Observe whether the oil surface of the oil sump of the fuselage and the lubricating oil in the oil injector are lower than the scale line.If it is low, it should be added in time (use a dipstick to stop and check); 4. Check the movement sounds of cylinders and moving parts at all levels in the constant temperature and humidity test chamber to distinguish whether it is working according to "listening". If abnormal sounds are found, stop the machine and check immediately; 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 prevent the cylinder and other places from freezing and cracking. 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 a constant temperature of 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 heat test box is normal with the hand feeling; 8. Check whether the cooling water temperature and flow rate of the constant temperature and humidity test box are normal; 9. Check whether the compressor is vibrating, whether the anchor screws 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 plexiglass baffle on the side of the crosshead rail of the fuselage. Supply situation); The cylinder and the filler 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 that the current is normal, 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 during the heating process of the motor; 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. At the same time regularly check the remaining amount of Freon. 16. Air storage tank, cooler and oil-water separator should always release oil and water

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