The role of circulating water and fresh water in the pressure reduction device

Fresh water is cheaper than recycled water, so use fresh water

On the drawing, I also have softened water. I don’t know where to use it? Is there still a connection between the circulating water and the fresh water? Has anyone worked in production? Let me explain in detail

Typical coolers use circulating water for post-cooling after the normal top, initial top, and normal first, second, and third stages, as well as for cooling machine pumps. Fresh water is used for line cleaning during shutdowns, while softened water is used for electrodialysis. Normally, fresh water is connected to circulating water, and they can be exchanged in case of an accident.

What was said on the 6th floor is correct. Furthermore, fresh water should be used for drinking water. Both circulating water and softened water are treated water, and they are relatively expensive.

It’s not because fresh water is cheap that it should be used; since fresh water has not been treated, using it as cooling water in heat exchangers will lead to increased scaling in those exchangers, thereby affecting the long-term operation of the equipment! ! Fresh water is generally used for mixing with steam in the plant area, as well as for cleaning and fire fighting. It is also connected to the inlet of the pump and used for washing the tower and removing oil from the water surface during shutdowns

　　The general cooling system of the device uses circulating water, which has been treated to reduce scaling and corrosion. The circulating water is connected to fresh water, so that in case the amount of circulating water is insufficient, it can be replenished with fresh water to ensure stable operation of production. 　　Softened water is generally used in wet air coolers and for desalination water injection.

Circulating water is generally used for cooling and condensers. The circulating water and fresh water are connected to prevent interruptions or shortages in the amount of circulating water; the fresh water is used for adjusting the alkaline solution, as a demulsifier, and for injection in electrodesalination processes. Softened water is generally used in steam generators.

The unit is equipped with: fresh water, circulating water, reclaimed water, deionized water, deoxygenated water, and softened water. Fresh water is used for household drinking, for cleaning lines when the equipment is shut down, and for diluting solvents. It was also previously used to clean machine pumps, but now reclaimed water is used for that purpose. Circulating water is mainly used in heat exchange equipment to reduce scaling after treatment. Softened water is used for air-cooled spraying. Deionized water is used in heat exchange equipment, while deoxygenated water is used as water for the steam drum. The grades of softened water, demineralized water, and deoxygenated water are increasing, with the focus being on the degree to which ions such as calcium and magnesium are removed in order to prevent scaling and damage to heat exchange equipment.

Is it just a pressure relief device? Generally, circulating water is used the most to reduce the condensation of vacuum steam drawn from the top; if wet air cooling is employed, softened water is used for spraying. In addition, a small amount of circulating water and fresh water from the stuffing box is used in the pumps. I’m not sure if this answer satisfies you

Circulating water and fresh water usually have a connecting valve, allowing them to be exchanged with each other in a short time during an emergency.

Clarity and confusion coexist; I am clearly aware that my decision to discard the softened water was correct, and that additional interconnection pipelines are needed. Thank you to my colleagues for the reminder. :handshake