Waste heat boiler manhole door opening cooling pipe arrangement structure

By optimizing the layout of the cooling pipes in the manhole of the waste heat boiler, reducing stress concentration due to bending, and combining this with anti-corrosion treatment, the problem of easy damage to the cooling water pipes was solved, thus achieving safe and reliable operation of the waste heat boiler.

CN223954192UActive Publication Date: 2026-02-27铜陵有色金属集团股份有限公司
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Patent Information

Application Number
CN202520172464.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-02-27
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

The existing layout of cooling water pipes in the manholes of waste heat boilers leads to stress concentration at bends, making the pipes prone to damage and affecting the safe operation and production stability of the boiler.

Method used

The left and right cooling pipes extend parallel to each other to the top edge of the manhole opening, then bend vertically, extend to the left and right sides, and extend obliquely at the bottom edge. This reduces the number of bends and stress concentration. Combined with the use of an anti-corrosion layer and the arrangement of U-shaped cooling pipes, the cooling effect and pipe integrity are ensured.

Benefits of technology

This reduced the breakage rate of cooling water pipes, increased their service life, ensured the safe operation and cooling effect of the waste heat boiler, and avoided water leakage problems caused by stress concentration.

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Abstract

The utility model discloses a waste heat boiler manhole door opening cooling pipe arrangement structure and relates to the technical field of waste heat boilers, a left cooling pipe and a right cooling pipe are close and parallel to each other and extend to the middle of the upper edge of a manhole door opening from top to bottom to be vertically bent, the left cooling pipe extends towards the left edge side of the manhole door opening, and the right cooling pipe extends towards the right edge side of the manhole door opening. The left cooling pipe and the right cooling pipe extend to the lower edge of the manhole door opening and obliquely extend to the lower portion of the middle of the lower edge of the manhole door opening. The damage rate of the cooling pipe can be reduced, and safe operation of the waste heat boiler is ensured.
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