How should industrial chiller units handle incoming water?
1. When we notice water ingress, we need to immediately turn off the main power supply and shut down the machine for operation to ensure the safe use of all machinery and equipment.
2. Check and protect the core components of the chiller. For example, compressors, condensers, evaporators, expansion valves, water pumps, control boxes, fans, etc.
3. Disassemble the parts that come into contact with water, and then air dry or dry them. When disassembling, it is best to take pictures from all angles and save them, so that we can refer to them when reassembling the parts. Of course, some parts cannot be disassembled at will, such as motors. The disassembly and inspection of the motor should be carried out by consulting professional technical personnel to avoid aggravating losses.
4. Remove the circuit board from the electrical box, remove any accumulated water, air dry or dry the circuit board, and reassemble it in a completely dry environment for power on testing. If the circuit board is damaged, it needs to be replaced in a timely manner.
In fact, when water enters the chiller system, the chiller is basically scrapped, and it is recommended that customers do not use it. If it must be used and repaired, we can also do it. When water enters the system, it will travel along the pipeline to the compressor, condenser, and then evaporator.
If it is necessary to replace it, we will replace the entire evaporator and compressor, and all connecting pipes have been replaced. The condenser is a combination of two and cannot be replaced. So we will use hot air drying, but after drying, it is still relatively poor.
There are some welding slag inside. So this filter will be installed with a new filter and a detachable filter. We usually replace the filter with a new one after about a week of use, which will have a better effect.
Vacuum dry and re store the pipeline, pressurize nitrogen to maintain system sealing, and then connect a vacuum pump for vacuum drying. Attention: A dry filter barrel must be added to the front of the vacuum pump to prevent excessive water vapor from entering the vacuum pump. During the vacuum drying process, the parts of the pipeline that are prone to water can be heated, and the time depends on the site.
Debug and run. Confirm that the water in the system has been basically discharged. Connect the external drying filter cartridge to the system and replace the desiccant after 5 minutes of operation. At the same time, observe the operating parameters of the equipment and pay attention to the operating sound of the compressor. If the dryer filter is very cold, the expansion valve will frost and the pressure difference before and after the return air filter is greater than 0.5 kg, it should be immediately closed.
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