Common faults and solutions of summer chillers
Entering the hot summer, industrial chillers in many factories ushered in the peak period of refrigeration. The refrigeration equipment frequently runs, and it is very likely that there will be such and other small failures. Today, the editor will introduce some simple and practical knowledge of chiller operation and maintenance, hoping to help you solve problems in a timely manner, without delaying production, and saving unnecessary maintenance costs for refrigeration equipment.
1. When the high and low pressure of the chiller are higher than the normal pressure, one situation is poor heat dissipation, especially when the ambient temperature is relatively high, which often leads to worse heat dissipation. The cause of this failure is generally the blockage of the heat sink. , Dirty, insufficient speed of the cooling fan, etc., try cleaning the cooling fins of the condenser. This is an important reason for the high-pressure alarm of the chiller in the summer. When the weather is not hot, many customers put a lot of debris in the chiller room, which seriously affects the heat dissipation of the machine. There may be nothing at the time, but it is very difficult when the weather is hot. It is easy to cause high-pressure alarm of the unit and affect the normal operation of the unit.
2. The energy efficiency ratio of water-cooled chillers has deteriorated and the cooling capacity has dropped. One situation is that the cooling water system is dirty and blocked. At this time, you only need to clean the cooling water tower and replace the cooling water to solve the problem.
3. When the chiller is working, the pressure gauge shakes, indicating that there is moisture in the system. At this time, the vacuum needs to be re-evacuated, and the pumping time is not less than a quarter of an hour. If necessary, it is best to change the filter drier to completely remove the water in the refrigeration system. But vacuuming to replace the filter drier is a very professional maintenance skill, so you must ask relevant professionals to operate it.
In fact, if you want to make the chiller run more stably and efficiently, it is best to cooperate with a professional refrigeration equipment company and let them do regular professional maintenance, so as to ensure the stable and efficient operation of the chiller.
