一种锅炉烟气余热自动回收系统

By employing adjustable swing heat exchange components and flue gas velocity control components in the boiler flue gas waste heat recovery system, the problems of high heat transfer resistance and ash accumulation have been solved, achieving efficient flue gas waste heat recovery and improved system stability.

CN121897932BActive Publication Date: 2026-07-17ANHUI MAANSHAN WANNENGDA POWER GENERATION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI MAANSHAN WANNENGDA POWER GENERATION CO LTD
Filing Date
2026-01-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, boiler flue gas waste heat recovery efficiency is low, heat transfer resistance is high, and ash accumulation leads to system performance degradation, requiring frequent maintenance.

Method used

An adjustable swing heat exchange component and a flue gas velocity control component are adopted. By changing the flue gas velocity and the swing motion of the heat exchange tube, the thermal boundary layer is broken, the fluid convection heat transfer efficiency is improved, and the accumulated ash is removed by mechanical swing.

Benefits of technology

It achieves efficient waste heat recovery from flue gas, reduces heat transfer resistance, reduces ash accumulation, improves the heat transfer efficiency and stability of the system, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种锅炉烟气余热自动回收系统,属于锅炉烟气余热回收技术领域,该锅炉烟气余热自动回收系统,包括内部为空心结构设置的箱体,所述箱体内壁面向入气管一侧呈弧形面设置,所述入气管内部安装有烟气流速控制组件,用于改变烟气流速的起点和流场分布;所述箱体内部安装有可调节摆动换热组件,用于高温烟气与管壁产生强烈的相对运动和对流,提高对流换热系数。本发明通过采用可调节摆动换热组件和烟气流速控制组件,可以在锅炉烟气进入箱体内的初始段提高流速,强化对流换热,并通过换热管轴向往复摆动,破坏烟气与水流的稳定热边界层,同时让管内水流变为脉动流和湍流,整体换热系数大幅提升。
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