Precautions on how to prevent freezing in winter chillers

Precautions on how to prevent freezing in winter chillers

As the temperature drops, winter is approaching. Last year, many customers’chillers experienced freezing failures. The editor of okmarts.com reminds everyone to do a good job of antifreeze work. The editor of okmarts.com will introduce the antifreeze of air-cooled chillers and water-cooled chillers separately. Antifreeze.

For air-cooled chillers, there is no water cooling system for water-cooled chillers due to the use of water-cooled heat dissipation. The only heat dissipation part of the air-cooled chiller is that the fan needs to be antifreeze. The focus should be on the lubricating oil of the fan. If it runs continuously There is no need to worry about the anti-freezing problem of lubricants. If the chiller is used intermittently or not for a long time, you should pay attention to anti-freezing. If you do not use it for a long time, you should clean up the air-cooled machine and apply protective oil. It is best to be waterproof to prevent the air-cooled machine from frostbite caused by cold weather in winter. If it is used intermittently, the fan lubricating oil should be scraped off when production is stopped, and then an appropriate amount of lubricating oil should be added during use. Under the normal working condition of the air-cooled chiller, sufficient water flow and water pressure are ensured, and the problem of freezing of the cooling water basically does not occur.

　　 Water-cooled chillers are different from air-cooled chillers. The cooling component of water-cooled chillers is a water circulation system, not a fan system, so the antifreeze task is more difficult, even during normal operation, antifreeze work must be performed.

Start with the water cooling system to investigate and prevent cooling and thawing. Generally speaking, water-cooled chillers are used in winter. It is recommended to add antifreeze to the cooling water, but the concentration of antifreeze in the water and the ratio of antifreeze to cooling water are required. Make it clear that adding less will not have the anti-freezing effect, and adding more will cause corrosion to the water cooling system such as pipes and seasonings, and the body of the water tower. In addition to the water cooling system, you should also start with the refrigerant. When the temperature of the refrigerant is too low, the characteristics of the refrigerant may change. The water-cooled chiller is not practical for a short time in winter. It should be turned on and warmed up frequently. Before the formal use, The water pump and cooling tower should also be turned on before the compressor.