Heat exchange device, combustion heat exchange module and gas water heater
By setting upper limit sections on the inner and outer plates of the water seal and eliminating the flange edge, the problem of excessive size of existing heat exchange devices is solved, and the miniaturization of combustion heat exchange modules and gas-fired hot water equipment is realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG VANWARD NEW ELECTRIC CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-12
AI Technical Summary
Existing heat exchange devices are large in size due to the flanges on the inner and outer water seal plates, which affects the miniaturization of combustion heat exchange modules and gas-fired hot water equipment.
By setting upper limit sections on the inner and outer water seal plates and eliminating the folded flange edge, relative movement is prevented through the limit sections, thus reducing the size of the heat exchange device and the smoke hood.
While ensuring pressure resistance, the size of the heat exchange device and the smoke hood has been reduced, thus lowering the cost and achieving miniaturization of the combustion heat exchange module and the gas-fired hot water equipment.
Smart Images

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