Questions about the renovation of pressure vessels?
Thread Content
There is a tower, with a heat exchanger in the middle section； The tube side of the heat exchanger is equivalent to being connected to the tower, and it does not fall into any specific category ； A pressure vessel is one in which steam flows through the shell side ； I now want to change the name of the tower and the medium of the pipeline. Even after the change, the monitor still doesn’t inherit from the class. The drawings and calculations have been redone. I want to ask how to go through the renovation procedures? Should it be informed normally?
You’re asking about the procedure for applying to modify pressure vessels, right? It’s necessary to follow the proper notification procedures. However, it’s important to prepare in advance a plan for the modification, as well as proof of the company’s and the personnel’s qualifications. You should also contact the authority responsible for overseeing the use of such vessels at the location where they are installed, as well as the relevant inspection agency; the oversight authority is usually the department dealing with special equipment under the Market Regulation Bureau. Each province or municipality has its own notification system; one must call to find out about it. These days, things are generally handled through online systems, and construction can only begin after approval is granted.
This issue is quite complex. Strictly speaking, this doesn’t qualify as a pressure vessel; it can only be considered a component of one. However, if it was manufactured as part of a pressure vessel, then re-drawing the designs would not be appropriate. Changes to the pipe network don’t need to be taken into account, unless they were specified in the original design drawings； If the pressure vessel components are delivered in this form, they cannot be used as a pressure vessel on their own; when new drawings are prepared, the tube side must also be included as part of the pressure vessel, and pressure vessel inspection must be carried out accordingly.
That is the oversight agency, while the term \"using management department\" refers to the management department of the entity that uses it.
The special inspection agency is an inspection body and is not necessarily an agency under the Market Bureau.
It’s equipment used on-site, and I want to use it on another device. Not manufactured and shipped from the factory
I understand the process; I’ve just never encountered this type of modification before. Since no on-site construction is involved, I don’t even know how to write a construction plan.
You still don’t understand. Take a look at the design drawings to see if pipe routing is included in the design scope. If it is, then your changes constitute modifications, and you need to follow the inspection procedures for modifications. If it’s not included, then your changes aren’t considered modifications; it depends on whether your alterations match the drawings.
I was incorrect in my statement; it should be the special equipment supervision department. Our company has carried out several repairs and modifications on pressure vessels; we just completed one such repair recently. I was involved in assisting with the on-site work, and here’s what happened: during the construction, the regulatory authorities are not responsible for conducting inspections, but they do show up at the site. Therefore, local inspection personnel are needed to oversee the inspections on site.
How to write a renovation plan? No on-site construction
It’s not a matter of wording; you still haven’t understood it. The oversight body is the Market Regulation Bureau, which is an authority with civil servants; the inspection agency, on the other hand, is merely an inspection body – it could be a public institution or a private enterprise. The user units are essentially enterprises; this is easy to understand