Do you need to change the medium stored in the tank? What procedures are needed?
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Our facility currently has one storage tank with a capacity of 55 cubic meters. It was previously used to store liquefied gas, but now it is to be used for storing light oil. What procedures are required for this change? Could anyone with experience give me some guidance? Thank you in advance
This post was last edited by SDHZZXM on 2017-8-29 at 10:08. This relates to the modification of pressure vessels. It is likely possible to reapply for registration for use with the written consent of the original design unit; you may consult the local department responsible for the supervision and management of special equipment...
Comply with Section 5.2 \"Notification and Major Repairs\" of the \"TSG 21-2016 Safety Technical Inspection Regulations for Fixed Pressure Vessels\". If the light oil temperature is below the standard boiling point, and the tank will no longer be used as a pressure vessel subject to supervision, proceed with cancellation.
You said I found this regulation online; it seems to mean that the design firm responsible for the original storage tank has to issue a certificate, and then a pressure resistance test is conducted. Also, what do you mean by cancellation? I’m almost not understanding this anymore
I searched online, and it seems to be like this. Thank you
If the temperature of the light oil is below its standard boiling point, there is no gas space inside the equipment, or a breather valve is installed to ensure that the operating pressure inside the container remains below 0.1 MPa, then it does not qualify as a pressure vessel subject to regulation; it can be deregistered and used not as a pressure vessel but merely as a regular storage container...
I see, I understand. Changing this medium does indeed result in lower pressure, so it no longer qualifies as a pressure vessel. Thank you
Replacing liquefied gas with light oil reduces the pressure requirements, so it should work
Yes, in theory there should be no problem, but since I’ve never handled this before I didn’t know what procedures were required. So I came here today to ask the experts, and now I understand; I plan to go to the Quality Supervision Bureau tomorrow to find out more
Well, it’s more reliable to ask the Quality Supervision Bureau