一种荒煤气余热回收换热器

By filling the outer side of the inner cylinder of the waste gas heat recovery heat exchanger with a thermally conductive filler and setting a boundary layer fluid rotation turbulence element, the problems of tar vapor coking and short inner cylinder life are solved, achieving efficient heat transfer and safe and reliable waste gas heat recovery.

CN115930638BActive Publication Date: 2026-07-17HUNAN JIU JIU MINING SAFETY EQUIP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUNAN JIU JIU MINING SAFETY EQUIP
Filing Date
2023-01-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The problems of coking of tar vapor and short service life of the inner cylinder have not been effectively solved in existing waste gas heat recovery heat exchangers, resulting in decreased heat transfer efficiency and increased safety hazards.

Method used

The inner cylinder is filled with a thermally conductive filler on the outside, and the filling depth of the middle thermally conductive cavity is 0.55-0.85 times the length of the inner cylinder. It combines thermally conductive and heat-storing powder and thermally conductive heat-storing body, and is equipped with a one-way valve to regulate the pressure difference between the inside and outside. A boundary layer fluid rotation turbulence device is set on the inner wall of the inner cylinder to optimize the structure, reduce tar adhesion and extend the service life of the inner cylinder.

Benefits of technology

This improved the heat transfer efficiency of the heat exchanger, extended the service life of the inner cylinder, reduced construction costs, and prevented safety accidents.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明属于换热设备技术领域,具体是涉及到一种荒煤气余热回收换热器,包括:内筒,所述内筒两端贯通,用于流通荒煤气;中间筒,所述中间筒设置在内筒外侧,所述中间筒内壁与所述内筒外壁形成中间导热腔,所述中间导热腔内填充有导热填充物;外筒,所述外筒设置在中间筒外侧,所述外筒内壁与所述中间筒外壁形成外侧换热腔,所述外侧换热腔用于流通换热介质;所述导热填充物在所述中间导热腔内的填充深度与内筒的长度之比为0.55‑0.85。本发明将常规荒煤气余热回收换热器中成本较高,易损坏的内筒通过上述结构改进,在降低成本的同时提高了使用寿命,且同时保证换热器的传热效率和荒煤气余热回收的效果。
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