Waste heat recovery boiler
By using a multi-stage heat exchange system and cleaning mechanism, the problem of low waste heat recovery rate in traditional boilers has been solved, achieving efficient collection and utilization of heat inside the boiler and improving energy efficiency.
CN120926610APending Publication Date: 2025-11-11ZHEJIANG ZHEFENG ENERGY DEV CO LTD
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Patent Information
- Application Number
- CN202511096767.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-06
- Publication Date
- 2025-11-11
AI Technical Summary
Technical Problem
Traditional boilers have low waste heat recovery rates, and the waste heat in the fuel chamber and heating chamber is not effectively utilized after the boiler is shut down, resulting in energy waste.
Method used
The design incorporates a multi-stage heat exchange system, including direct heat exchange tubes, spiral heat exchange tubes, and arc-shaped heat exchange tubes, combined with a cleaning mechanism and a stirring mechanism, to achieve efficient waste heat collection and utilization.
Benefits of technology
It significantly improves energy utilization, reduces heat loss, maximizes the use of residual heat in the boiler, and enhances the overall efficiency of the boiler.
✦ Generated by Eureka AI based on patent content.
Abstract
The boiler comprises a bottom plate and a boiler body, the boiler body is installed at the upper end of the bottom plate, a combustion cavity and a heating cavity are formed in the boiler body, a smoke exhaust pipeline is installed at the upper end of the combustion cavity, a plurality of direct heat exchange pipes are installed in the smoke exhaust pipeline, and a first three-way pipe is installed at the front ends of the multiple direct heat exchange pipes; an inlet pipe is installed at the rear ends of the multiple straight heat exchange pipes, a cleaning mechanism is arranged in the smoke exhaust pipeline, a smoke exhaust hood is installed at the upper end of the smoke exhaust pipeline, and a second three-way pipe is installed at the upper end of the smoke exhaust hood. High-temperature flue gas in the straight heat exchange pipe and the smoke exhaust pipeline is subjected to efficient heat exchange, heat exchange gas is guided into the second spiral heat exchange pipe in cooperation with the first three-way pipe, liquid in the main heating barrel is preheated, medium-temperature flue gas enters the first spiral heat exchange pipe through the second three-way pipe after being accelerated through the reducing hopper, and liquid in the auxiliary heating barrel is preheated; and through the multi-stage heat exchange design, flue gas waste heat is fully collected, and the energy utilization rate is greatly increased.
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