How do I replace the heat exchange tube bundle in a U-tube boiler?
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One of the sulfuric acid heat recovery boilers in our plant needs to have its tube bundle replaced. The new tube bundle has been purchased; it has a diameter of φ1400 and a length of 12000, with a weight of 20 tons. It consists of U-shaped tubes, and the tube plates are connected using flanges. Could those with experience share their insights on the procedures for replacing the old tube bundle with the new one?
Professional teams must be hired for construction! ~Develop a plan based on the on-site situation!
Could you recommend some construction companies that have the qualifications for handling pressure vessels? It’s best to be an organization from Guangxi \ud83d\ude0a
For U-shaped similar structure issues, the heat exchange tubes generally cannot be replaced; leaks are usually addressed by plugging the tubes. If replacement is necessary, the entire tube bundle must be replaced (including the tube sheet, partitions, heat exchange tubes, etc.).