A waste gas recovery device with heat exchange function

By setting up a heat exchange and uniform material distribution mechanism in the absorption tower, the high-temperature waste gas is used to preheat the absorption liquid, which solves the problem of the heat of high-temperature waste gas not being recovered in the existing technology, and realizes efficient waste gas treatment and energy utilization.

CN224442638UActive Publication Date: 2026-07-03CHENG KAI GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENG KAI GRP CO LTD
Filing Date
2025-08-05
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing absorption towers fail to effectively recover heat from high-temperature waste gas, resulting in energy waste and increased energy consumption of the cooling system.

Method used

A heat exchange mechanism and a material distribution mechanism are installed in the absorption tower. The high-temperature waste gas is used to preheat the absorption liquid, and heat exchange is carried out through heat exchange tubes. The spray range and flowability of the absorption liquid are optimized by the baffle plate and the material distribution mechanism.

Benefits of technology

It improves the fluidity and chemical reaction rate of the absorbent, enhances the efficiency of waste gas treatment, avoids energy waste, realizes the utilization of heat from high-temperature waste gas, and improves the uniformity and treatment efficiency of the absorbent.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224442638U_ABST
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Abstract

This utility model relates to the technical field of waste gas recovery equipment, and discloses a waste gas recovery device with heat exchange function, including an absorption tower. A preheating box is fixedly connected to the outer wall of the absorption tower, and an inlet pipe is fixedly connected to the top of the preheating box. A spray assembly is installed inside the absorption tower, and a heat exchange mechanism is installed inside the preheating box. A material leveling mechanism is installed at the top of the preheating box. The heat exchange mechanism includes a heat exchange tube that penetrates and is fixedly connected to the inner wall of the preheating box, and a flange is fixedly connected to one end of the heat exchange tube. In this utility model, the heat exchange mechanism allows the absorption tower to use the heat of the high-temperature waste gas to preheat the absorption liquid when treating high-temperature waste gas. This helps to absorb pollutants in the waste gas into the absorption liquid more quickly, thereby improving absorption efficiency and making full use of the heat of the high-temperature waste gas, effectively avoiding energy waste.
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