What should be done after the load of the air-cooled refrigeration unit is damaged?

The treatment method for damaged load of air-cooled refrigerators: Firstly, it is necessary to confirm whether the compressor load is burned or the components are worn out. If so, it will inevitably cause pollution to the refrigerant system, such as residual refrigerant oil remaining in the pipeline after carbonization, and drying filters absorbing a large amount of water. So, if there is a compressor burning, first analyze the cause of the compressor burning: whether it is a temperature control quality problem such as the contactor and overload device inside the control box; Is it a set value change or adjustment error; Is it due to unstable power supply voltage; Whether the operator operates in the normal order, etc.

Air cooled chillers are mainly used in industries such as chemical engineering, ink printing, large energy equipment, mixing stations, food preservation, central air conditioning, etc. According to different heat dissipation methods, there are air cooled screw chillers and water cooled screw chillers. Even the best product cannot be used continuously, and there are limitations to its lifespan. Improper operation may also cause malfunctions. So, what should we do when the air-cooled refrigerator compressor is damaged and has problems? If it has been determined that the compressor is damaged and completely unusable, the following steps should be followed to replace it with a new one;

1. Remove the drying filter, use a temporary detachable connecting pipe or copper pipe joint to connect the short circuit part, and blow dry the entire system. At this time, nitrogen gas with a pressure of 10kg/cm2 can be used to blow dry until there is no residual cleaning agent;

2. Inject cleaning agent into the pipeline system to clean the circulating flow, and if necessary, replace the cleaning agent for multiple cleaning;

3. Add and replace the refrigerant oil of the compressor, observe the oil usage during compressor operation, add liquid refrigerant, and start the machine for testing after reaching 80%~90% refrigerant volume. Note: The compressor must be heated for 2 hours;

4. Install a good compressor and drying filter, and use nitrogen gas with a pressure of 10kg/cm2 to detect leakage. If there is no leakage, the remaining nitrogen can be discharged into the atmosphere through the high-pressure corner valve;

5. At the same time, vacuum the high and low voltage terminals to 1000 micro, and then check all power supplies and electronic control systems.