Flue gas heat energy recovery device with purification function

By using zigzag aluminum metal tubes and baffles in the flue gas heat recovery device, the contact time of flue gas in the unit space is extended and the contact area is increased, which solves the problem of incomplete heat transfer in existing devices and achieves efficient recovery and purification of flue gas heat.

CN224094943UActive Publication Date: 2026-04-07GREE NEW ENERGY MANAGEMENT (LIAONING) CO LTD
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Patent Information

Application Number
CN202520946750.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-14
Publication Date
2026-04-07
Estimated Expiration
2035-05-14

AI Technical Summary

Technical Problem

In existing flue gas heat recovery devices, the flue gas only comes into contact with the lower half of the outer wall of the threaded aluminum bar, resulting in incomplete heat transfer and some heat loss. Furthermore, the fan accelerates the flow of the flue gas, leading to low heat recovery efficiency.

Method used

Design a flue gas heat recovery device with purification function, using a zigzag aluminum metal tube as a heat exchange component, combined with a baffle and a diverter to extend the contact time of flue gas in the unit space, increase the contact area between flue gas and water, and purify the flue gas through a filter disc.

Benefits of technology

It improves the efficiency of waste heat recovery in flue gas, realizes the full collection and purification of flue gas heat, reduces water flow velocity, increases heat transfer area, and prolongs the residence time of flue gas in the unit space.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses a flue gas heat energy recovery device with a purification function, which relates to the technical field of flue gas waste heat purification and recovery and comprises a waste heat recovery frame, a purification cylinder for extracting flue gas is assembled at the top of the waste heat recovery frame, and the waste heat recovery frame comprises a frame body fixedly connected to the bottom of the purification cylinder. A bottom plate with the middle protruding is fixed in the frame body, and L-shaped plates fixed to the front inner wall and the rear inner wall of the waste heat recovery frame are arranged on the two sets of inclined tops of the bottom plate. The flow speed of the water body is reduced through the heat exchange assembly, heat in smoke is fully transferred into the water body in cooperation with the smoke flowing in the S-shaped track in the unit space, the indirect contact area of the smoke and the water body is increased through the arrangement of the flow dividing pipe, and under the limitation of the blocking piece, the heat in the smoke is fully transferred into the water body. And the time for storing the flue gas in each group of unit space is prolonged, so that the recovery efficiency of the waste heat in the flue gas can be improved.
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