Pump cooling water and seal water
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I understand that the cooling water for the pump is used to cool the bearings and similar components; it serves solely a cooling purpose and never comes into contact with the medium, so there is no risk of it becoming contaminated. Sealing water is used at the mechanical seal location to cool it as well as to lubricate it, and this water can become contaminated. I’m not sure if my understanding above is correct? Is it complete? I would also like professionals to help with a comprehensive analysis. Also, could this mechanical seal water leak into the medium? Is there any sealed water that only flows in and not out, going directly into the process medium?
It depends on the sealing chamber and the pressure of the water in your system
Under normal conditions, there is no contact, but when the mechanical seal does not leak, the medium can contaminate the sealing water. The pressure of the sealing water can be increased.
It’s recommended to send a picture to show what it looks like; or it would be best to include a schematic diagram, which will facilitate discussion.
{:2_38:}{:2_38:}Same question
Not entirely correct; most of the cooling water is used to cool the bearings by back cooling, while a small portion is used to directly cool the sealing surfaces
You can refer to the mechanical seal flushing plan to see which category it belongs to
If the water pressure is higher than the medium pressure, there is a risk of leakage
The cooling water for the bearings is cooled through the jacket of the bearing housing. The mechanical seals are usually flushed with water, often via self-flushing, and the medium pumped is also water, so contamination is not a concern.