Chiller unit selection
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Our company is a chemical manufacturing enterprise that now intends to purchase a refrigeration unit to be used for cooling the jackets of reaction vessels in chemical production. How is the cooling capacity calculated? The freezing temperature is required to reach -20 degrees; should ethylene glycol or brine be used as the freezing medium? For refrigeration units, I would like to ask experts whether to choose an ammonia compressor or a Freon compressor. Urgent need! ! !
Ethylene glycol is a good choice; although its cost is high, it does not cause corrosion and is easy to use. Using Freon compressors helps avoid the potential safety risks associated with liquid ammonia leaks. There are many posts on this topic in the equipment discussion forums, so you can take a look
You don’t need to worry about the specific calculations; just provide your data to the equipment manufacturer, and they will handle the calculations for you. I recommend using ethylene glycol, as it offers good results when used in one application. As for the refrigerant used in refrigeration units, you don’t necessarily have to choose Freon or ammonia – the corrosive nature of ammonia is a significant issue. I recently discussed a refrigeration unit whose temperature requirements were not as low as yours – they were 2-7 degrees. The refrigerant used was 1270, and the compressor employed was a York twin-screw compressor; twin-screw compressors offer the best operational stability. During operation of this unit, if you place a bolt on the gearbox area, you won’t feel any vibration. The other heat exchange equipment is sourced domestically; my unit’s cooling capacity is 540 KW.
Freon is expensive; its operating costs are not as low as those of ammonia
For a 600,000 kcal refrigerator with a temperature range of -5 to -10 degrees, which model is suitable? Thank you!
Reply to 4# heeryen: Is ammonia cooling used less these days? It is prone to corrosion, which is not only a problem but also poses safety risks. Additionally, ammonia-cooled units are quite large in size, and their external piping systems are much more complex
Please consult Da Leng or Yan Leng Company.
I recommend using fluorine-based machines, as they have no leaks and offer a high degree of automation in operation. Our company specializes in this area, and I can help you choose the right model. Contact number: 18691806831, Zhao
Of course, it’s better to use fluorine-based machines – they are pollution-free, non-toxic, and do not leak easily. They are equipped with microcomputer control, and the coolant used, ethylene glycol, is superior to saltwater; ethylene glycol is non-corrosive, which is highly beneficial for the operation and lifespan of the equipment. If you have any needs related to refrigerators, feel free to contact me. Thank you.
Of course, it’s better to use fluorine-based machines – they are pollution-free, non-toxic, and do not leak easily. They are equipped with microcomputer control, and the coolant used, ethylene glycol, is superior to saltwater; ethylene glycol is non-corrosive, which is highly beneficial for the operation and lifespan of the equipment. If you have any needs related to refrigerators, feel free to contact me. Thank you.