How to regularly record and analyze the operating parameters of industrial chillers for daily maintenance?

1. Regularly check the compressor

The compressor is the “heart” of the industrial chiller, and its quality directly affects the stability of the chiller in use. If the compressor fails to be repaired, the cost is relatively high, especially the high precision and expensive screw compressor. Therefore, if you hear abnormal sound or other conditions in the compressor, you must contact the chiller factory to find a professional engineer to check, find out the cause, and perform maintenance.

2. Regularly clean the condenser and evaporator

The condenser/evaporator is the second most important component of the industrial chiller, and it is best to clean it every six months. The cooling water of the water-cooled condenser is an open circulation loop, and the tap water used is recycled through the cooling tower, which is easy to decompose and deposit impurities to form scale on the water pipe, which affects the heat transfer effect. Excessive scaling will also reduce the flow cross-section of the cooling water, reduce the amount of water, and increase the condensing pressure. Therefore, when the tap water is of poor quality, it is best to clean it at least once a year to remove the scale in the pipe, and it is best to treat the tap water.

3. Regular inspection of safety valves

The condenser and evaporator of the industrial chiller are pressure vessels. According to regulations, a safety valve must be installed on the high-pressure end of the chiller, that is, the condenser body. Once the unit is in an abnormal working environment, the safety valve can automatically relieve pressure , In order to prevent possible harm to the human body caused by high pressure.

4. Regularly replace the lubricating oil

After long-term use of industrial chillers, the oil quality of the lubricating oil will deteriorate, and the impurities and moisture inside the oil will increase, so the oil quality should be regularly observed and checked. Once a problem is found, it should be replaced in time. The brand of lubricant to be replaced should best be the one provided by the original manufacturer.

5. Regularly replace the filter drier

The filter drier is an important part to ensure the normal circulation of the refrigerant. Since water and refrigerant are incompatible with each other, if the system contains water, it will greatly affect the operating efficiency of the chiller. Therefore, it is very important to keep the system dry. The filter element inside the dryer filter must be replaced regularly.