A plate gas-water heat exchanger

By designing the vertical airflow channel and manifold structure of the plate gas-water heat exchanger, the problems of easy clogging and wear of the bare tube heat exchanger are solved, realizing efficient flue gas waste heat recovery and convenient maintenance. It is suitable for waste heat recovery devices in industries such as power and chemical.

CN224455511UActive Publication Date: 2026-07-03JIANGSU BOQINI ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU BOQINI ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing bare tube heat exchangers are prone to clogging, wear, and are difficult to clean and maintain when recovering waste heat from high-dust, high-temperature flue gas.

Method used

It adopts a plate-type air-water heat exchanger with a wide and smooth vertical airflow channel. It is constructed by adjacent plates, and the flue gas flows from top to bottom to exchange heat with the water inside the plates. The design of the manifold and plate inlet simplifies the water system structure and is equipped with a cleaning door for easy maintenance.

Benefits of technology

It achieves efficient waste heat recovery from flue gas, is suitable for dust-laden flue gas flow, is easy to clean and maintain, has a compact structure, occupies little space, is simple to install, and is easy to operate and maintain.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224455511U_ABST
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Abstract

This utility model discloses a plate-type gas-water heat exchanger, comprising one or more heat exchange components stacked vertically. The top of the uppermost heat exchange component is fitted with an upper connecting seat, and the bottom of the lowermost heat exchange component is fitted with a lower connecting seat. The upper and lower connecting seats are respectively provided with a flue gas inlet and a flue gas outlet communicating with an external object. Each heat exchange component includes a shell that runs vertically through it. Multiple vertically arranged plates are installed inside the shell. The multiple plates are arranged at intervals along the horizontal direction, and the intervals between adjacent plates form a vertical airflow channel. Each plate is hollow inside and circulates with an external water system. Flue gas passes through the heat exchange component from top to bottom through the vertical airflow channel, and heat is exchanged between the flue gas and the water flowing inside the plates, realizing the recovery of waste heat from the flue gas. The wide and smooth vertical airflow channel formed by adjacent plates is not only suitable for the flow of dust-laden flue gas, but also easy to clean and maintain, and has good practicality.
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