Waste heat recovery device of steam boiler

By designing dynamic heat recovery components and cleaning mechanisms in the steam boiler, the problem of heat loss during flue gas separation is solved, the waste heat recovery efficiency and heat transfer effect are improved, and efficient waste heat utilization is achieved.

CN120926420AActive Publication Date: 2025-11-11JIANGSU AISEN NEW ENERGY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511190168.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2025-11-11
Estimated Expiration
2045-08-25

AI Technical Summary

Technical Problem

In existing technologies, the separation of dust particles before purification of flue gas results in significant heat loss, leading to low waste heat recovery efficiency.

Method used

Design a waste heat recovery device for a steam boiler. The heat recovery components include a fixed cylinder, a movable cylinder, and a heat-conducting plate. The movable cylinder is driven to rotate by a drive component to achieve dynamic contact between the flue gas and the heat-conducting plate. Combined with a cleaning mechanism, the surface of the heat-conducting plate is cleaned to enhance the heat transfer area and efficiency.

Benefits of technology

It improves the utilization efficiency of flue gas waste heat, reduces heat loss, ensures the stability of heat transfer efficiency and the effectiveness of the cleaning mechanism, and realizes the cascade utilization and efficient recovery of waste heat.

✦ Generated by Eureka AI based on patent content.
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Abstract

The invention relates to the technical field of waste heat recovery, and particularly discloses a waste heat recovery device of a steam boiler, the waste heat recovery device comprises a boiler body, the top of the boiler body is provided with a flue pipe, a fixed pipe, a heat recovery assembly and a discharge pipe, and the flue pipe is fixedly communicated with the top of the boiler body; flue gas enters the chimney through the flue pipe and the fixed pipe and then exchanges heat with the multiple sets of heat conducting plates, and heat is transmitted to runners of the chimney and the movable cylinder and runners of the movable cylinder and the fixed cylinder through the heat conducting plates to heat combustion air introduced into the runners of the fixed cylinder and the movable cylinder through the air inlet pipe. The boiler feed water is introduced into a movable barrel and a smoke barrel flow channel through a water inlet pipe, contact between smoke and the plate face can be enhanced through rotation of a heat conduction plate, the heat transfer area is increased, the waste heat recovery efficiency is improved, and heat loss is reduced; meanwhile, the air flow channel is arranged on the outer side of the water flow channel, heat dissipated in the water flow heating process can be reutilized, and the waste heat utilization efficiency and the recovery effect are further improved.
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