A water-cooled premixed burner and an energy-saving and environmentally friendly heating system
By using finned burner tube design and orifice plate buffer cavity structure, turbulent flame is formed and cooling water is introduced, which solves the problems of unstable flame temperature control and backfire phenomenon in water-cooled premixed burners, thereby reducing NOx generation and improving burner safety.
CN224284610UActive Publication Date: 2026-05-26CHANGZHOU BOILER
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU BOILER
- Filing Date
- 2025-04-15
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Existing water-cooled premixed burners have instability and safety hazards in controlling flame temperature and NOx generation, especially the backfire phenomenon between finned tubes and burner is difficult to control.
Method used
The design employs a finned flame tube with arc-shaped fins. Combined with an orifice plate and buffer cavity structure, it forms a turbulent flame. Cooling water is circulated inside the finned flame tube to reduce the flame temperature.
Benefits of technology
It effectively reduces NOx formation, improves combustion rate and efficiency, reduces backfire, and enhances the safety and stability of the burner.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224284610U_ABST
Abstract
This utility model discloses a water-cooled premixed burner and an energy-saving and environmentally friendly heating system. The water-cooled premixed burner includes a combustion frame, a combustion assembly, a water distribution tank, a water collection tank, a flame detector, and an ignition device. The combustion assembly includes several finned burner tubes, an orifice plate, and a partition block. The finned burner tubes are provided with multiple arc-shaped fins and a first water passage. A second air intake buffer chamber with gradually increasing size is provided between the orifice plate and the finned burner tubes. The above-mentioned water-cooled premixed burner improves the combustion assembly by providing buffer chamber structures before and after the orifice plate, which helps to reduce backfire during combustion. At the same time, the arc-shaped fins can break the laminar flow state in the airflow, which is conducive to the formation of turbulent flames, improving combustion rate and efficiency. Cooling water is introduced into the finned burner tubes, which can quickly remove heat and effectively reduce the flame temperature, further reducing the formation of nitrogen oxides.
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