There’s a new problem! If a steam drum has not been used for N years, which department should be consulted for inspection?
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Question: I haven’t used my steam pack for N years, and now I want to use it; I’m not sure if it still works. Which department should be consulted for testing? I am in Shanghai. Thank you, everyone! Ours was custom-made at that time. There’s nothing like a manual or anything similar. So it has not been registered with the Special Equipment Supervision and Inspection Institute. I don’t know how to deal with this! The steam drum is DN500. 1 meter tall. Thank you all for your responses; we are in the process of negotiating. I have another new question for the experts here: Could everyone help me predict the safety issues related to the upcoming experiment of heating water using reverse steam flow? I plan to conduct this experiment in a carbon steel pipe with a diameter of around 0.1 M, with steam being supplied directly from an electric steam boiler at a pressure of about 4 kilograms per square centimeter. Water is just tap water. There is a hard link between the steam generator and the middle part. My concern is whether steam will experience severe \"water hammer\" effects as soon as it comes into contact with cold water at the inlet, and I’m not sure if the carbon steel pipe walls can withstand that. I would like to ask the experts to help me assess it and point out any issues that need attention. Thank you! ! ! This post was last edited by kisml on 2009-3-12 14:36]
It is recommended to have a comprehensive inspection of the steam drum carried out by a specialized inspection institute in Shanghai. However, if there are no factory documentation, product certification documents, or inspection certificates for this container, it will likely be difficult to pass the inspection； It’s better to manufacture a new one that fits, especially since the price of ordinary carbon steel isn’t high these days. For reference!
Thank you, the moderator, for setting the highlighting. The problem is that the reconstruction time is very long. We mainly do experiments. I’m afraid there won’t be enough time.
1. One can negotiate with the manufacturer and request them to provide the factory technical documents and inspection certificates. II. Send it back to the manufacturer for inspection and testing, and a new report will be issued.
Your issue can only be resolved by following clguan’s advice, because you didn’t go through the proper procedures when placing the order; it’s likely that the manufacturer’s qualifications will also be problematic, so it may not be possible to obtain the necessary approvals. If the manufacturer is qualified, they can be commissioned to conduct another pressure test on the equipment, which may result in lower costs. If not, there is no other choice but to redo it, because the cost of having a specialized inspection agency or another manufacturer inspect the equipment is enough to cover the cost of manufacturing a new unit.
Agree with this view. There are also some doubts: why weren’t any certification documents or product qualification certificates provided with the steam packs at the time of manufacture? Was corrosion protection applied during storage? How many years does \"N\" refer to? If that period is too long, it’s likely that significant corrosion would occur even in air. The products should only be used after a comprehensive inspection and approval by the authorized party. It won’t take long to do just one; a week should be enough! Safe production is what truly matters!
Thank you all. We’re discussing it.