A temperature compensation device for hot air circulation duct

By introducing positioning and limiting mechanisms into the temperature compensation device for hot air circulation ducts, the problem of rapid replacement when the bellows is damaged is solved, modular design is achieved, and maintenance costs are reduced.

CN224433821UActive Publication Date: 2026-06-30东台市宏祥电炉制造有限公司
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Patent Information

Application Number
CN202521460848.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2026-06-30
Estimated Expiration
2035-07-14

AI Technical Summary

Technical Problem

Existing hot air circulation duct compensators cannot be quickly replaced when the bellows is damaged due to corrosion, fatigue stress, or high-temperature oxidation, leading to increased costs.

Method used

A temperature compensation device for hot air circulation pipeline was designed, comprising a bellows and a flange. The bellows has an external positioning mechanism, and the flange has an internal limiting mechanism. The bellows and flange are conveniently connected and limited through positioning grooves, bolt holes and flange bolts. Damaged parts can be replaced individually through detachable lugs and limiting blocks.

Benefits of technology

The modular design of the bellows and flanges facilitates individual replacement, improves equipment maintenance efficiency, and reduces maintenance costs.

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Abstract

This utility model relates to the field of pipeline compensator technology and discloses a temperature compensation device for hot air circulation pipelines, including a bellows and a flange. A positioning mechanism is provided on the outside of the bellows, and a limiting mechanism is provided inside the flange. The positioning groove facilitates the positioning of the positioning plate. The bolt holes and flange bolts facilitate connection between the flange and the hot air circulation pipeline, and also allow for limiting the positioning of the positioned plate, thus limiting the bellows. The sealing ring ensures the sealing between the bellows and the flange. The modular design of the pipeline compensator facilitates the individual replacement of damaged bellows or flanges, saving costs. The detachable ear plate facilitates the individual replacement of damaged flanges, and the limiting block, in cooperation with the flange bolts, facilitates the limiting of the positioned insert.
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