The reaction vessel cannot maintain pressure during pressure testing
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①The reaction vessel operates at atmospheric pressure; its design pressure is 0.6 Mpa, while the pressure used for hydrostatic testing is 0.7 Mpa. A 205 type mechanical seal is used. The pressure can be maintained when the mixing system is not in operation, but once the mixing starts, the pressure drops to 0.2 Mpa. What could be the reason for this? Is the mechanical seal broken? Waiting for a reply online
Was no leakage detected? Could there be an internal leak?
Internal leakage is probably not an issue; the pressure can be maintained when it’s not rotating, with no drop in pressure
As for the size of the kettle, it’s likely a sealing issue; generally, a 206 model should be used. It is recommended to apply pressure and then use soapy water to check for leaks in the vessel
This is definitely due to a leak in the humor elements; it’s recommended to adjust those elements
For a tank with a volume of 5 cubic meters, a model 205 should work, right? The mechanical seal has been replaced, but it still doesn’t work.
Add a balance tank, and now it’s fine.
The 205 model is a double-end mechanical seal with very high pressure resistance. The selection of a mechanical seal is not determined by the size of the reactor, but rather by the pressure required by the customer. Logically, the pressure you require should be fine even without a balance tank. It’s probably a small factory that uses clever tactics. Another thing is to determine whether your reaction vessel is made of glass-lined steel or stainless steel.