What material is generally used for pipes in frozen saline? What should be the inlet and return water temperatures for frozen saline?
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What material is generally used for pipes in frozen saline? What should be the inlet and return water temperatures for frozen saline?
Carbon steel; the return water temperature depends on the type of chiller used and the temperature to which it can be cooled. Generally, the lower the temperature of the cold water, the smaller the temperature increase after cooling, which is more economical
There is salt inside; can carbon steel resist corrosion? ?
Carbon steel is generally used; it corrodes, and it needs to be replaced after about five years. I heard that adding anti-corrosion substances can reduce corrosion; you can look for it online. Inlet and outlet water temperature? Generally, it depends on your reaction needs. The normal inlet water temperature can reach minus 15 to 20 degrees; as for the outlet water temperature, it depends on the amount of heat exchange that takes place. In our five workshops before, the outlet water temperature was usually around 0 degrees. Be careful not to use the jacket together with steam or hot water; using them together can lead to saltwater leakage, and the saltwater is prone to heating up, which not only increases costs but also makes it difficult to keep the temperature of the saltwater down.
Uniform corrosion is not a problem; the pipes have a high pressure resistance rating, and they can be replaced after corrosion occurs. Generally, there’s no need to use stainless steel, as it is expensive and prone to intergranular corrosion, which is difficult to control
Material: stainless steel, inlet temperature –10, outlet temperature 0
If frozen saline is made using a calcium chloride solution, it is not appropriate to use stainless steel pipes
We use low-temperature frozen saline, and our factory’s 304 stainless steel pipes have been in use for 5 years now with good performance. Additionally, the main pipes for utility services are made of 20# steel; they have been in use for 10 years as well, and no local corrosion has occurred yet that would require replacement
Made of Q345D, resistant to low temperatures and corrosion
Those in need of calcium chloride can contact me at 18067279835. I mainly supply anhydrous and dihydrate calcium chloride produced by Juhua