What is the principle of the refrigerator compressor? Refrigerator compressor replacement method

The refrigerator is a household appliance that we use very high frequency, and the refrigerator compressor can check the size of the fault and make corresponding solutions when the refrigerator is in trouble. So what is the principle of the refrigerator compressor? How to replace it? The following decoration home decoration network Xiaobian will bring you the refrigerator compressor replacement method, I hope to help everyone.

What is the principle of the refrigerator compressor?

The refrigerator compressor is the heart of the refrigerator. It is a low-temperature low-pressure refrigerant that is sucked from the evaporator. The operation of the motor drives the piston to compress the refrigerant, so that the refrigerant becomes a high-temperature and high-pressure gas, and then the refrigerant passes through the conveying pipe. It is sent to the condenser of the refrigerator to provide sufficient power for the refrigeration system of the refrigerator to finally realize the gas from the compressor to the high temperature and high pressure. The condenser is condensed into a high-pressure and low-temperature liquid through the condenser, and is passed through the capillary. The resistance becomes a low-temperature and low-pressure liquid, and the boiling vaporization in the isobaric evaporator absorbs heat from the surrounding medium to become saturated low-temperature and low-pressure steam, and finally is absorbed by the compressor again, completing the circulation of the entire refrigeration system.

Refrigerator compressor replacement method:

1. When replacing the refrigerator compressor, the refrigerant should be vented to cut off the process blind pipe on the original compressor and vent the refrigerant in the refrigerator. In order to prevent the freezing oil from rushing out, first use a trowel to sew a slit in the lower part of the end of the process pipe to slowly release the refrigerant.

2. The installation process stop valve removes the sealing rubber of the new compressor process blind pipe, exhaust pipe and suction pipe to be replaced (some are silver-bronze welded seals, which can cut the end) to bleed the internal nitrogen. And remove the rust layer of the three nozzles, and install the process stop valve at one end of the process blind tube.

3. Dismantle the old compressor and use electric welding to boil the welding point of the high-pressure exhaust pipe and the condenser, and the welding point of the low-pressure suction pipe and the return pipe. Then loosen the four foot fixing screws of the compressor and remove the compressor.

4. Install a new compressor. First check whether the anti-vibration rubber removed from the old compressor is aging or deformed. If it can be used, continue to use it. If it cannot be used, replace it with a new one and fix the new compressor on the base of the refrigerator. Clear the port to be welded of the condenser and return pipe. The high-pressure exhaust pipe is connected to the condenser, the low-pressure suction pipe and the return pipe by silver welding or brazing.

5. Check the sealing position of the welded part. After the welding is finished, firstly fill the refrigeration system with a certain pressure of dry nitrogen or Freon, and fill it from the process stop valve. The pressure requirement is about 686-882Kpa. Wipe the solder joint with soapy water for leak detection. After confirming that the sealing performance is intact, it can be dried and evacuated, and filled with Freon.

The above is what the small compressor brings to you. What is the principle of the refrigerator compressor? The whole contents of the refrigerator compressor replacement method, I believe that everyone has a basic understanding of the refrigerator compressor after reading this article, if you want to know more about the decoration consultation, please click to enter the decoration knowledge channel .

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