Seeking advice on mechanical seal issues
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I’ve been looking at the drawings for reaction vessels recently, and when I came to the section on mechanical seals, I noticed that the note column next to those seals read “oil-free”. I’m not sure what this means – does it mean that no lubricating oil is required for these mechanical seals?
Yes, there are oil-free mechanical seals available.
Does that mean no need to add anything into the oil container? We’re all pushing hard now. It turns out I didn’t pay attention to the drawings; I always thought that mechanical seals required lubrication, so without checking the drawings I just added oil to them
Oil-free lubrication – no lubricant is required.
You can search on Baidu; the structures of oil-free mechanical seals vary, as do the materials used for their sealing surfaces.
Split-type oil-free mechanical seal for kettles http://www.doc88.com/p-143551151687.html
@I’ve read the article on qwl; I’m not sure now whether it’s possible to avoid using lubricant. I used to apply lubricant all the time, and I wonder what effect not using it will have on the mechanical seal
Firstly, the pressure in your reactor is not high. Secondly, the mechanical seal surface is very important; if adding oil has no effect on the material inside the reactor, then it’s fine to add some oil and continue using it
The sealing of reaction vessels is generally oil-free; the leakage of lubricating oil into the vessel can contaminate the material, so it is recommended to revert to an oil-free sealing system.