Gas water heater
By designing multi-aperture air intake channels and equipping them with switching mechanisms in gas water heaters, the problems of combustion efficiency and operational complexity during gas source switching are solved, achieving efficient combustion, simplifying user operation, and extending equipment life.
WO2026138099A1PCT designated stage Publication Date: 2026-07-02LI WENHUA
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- LI WENHUA
- Filing Date
- 2025-10-21
- Publication Date
- 2026-07-02
AI Technical Summary
Technical Problem
Traditional gas water heaters suffer from incomplete combustion due to gas pressure differences when switching gas sources, which affects thermal efficiency and increases gas consumption, and the operation is complicated.
Method used
Design a flow control device equipped with at least two different orifice diameter air intake channels, and achieve flexible switching through a switching mechanism to ensure adaptability to the gas flow requirements of different gas sources.
Benefits of technology
Improve combustion efficiency, reduce gas consumption and harmful emissions, simplify operating procedures, and extend equipment life.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN2025128977_02072026_PF_FP_ABST
Abstract
Provided is a gas water heater, comprising a housing (1), which is internally provided with a water pipe (2), a burner (3), a flue gas exhaust assembly (4), a control system, and a heat exchanger (5) for transferring heat generated by the burner (3) to the water pipe (2), wherein a gas supply pipe (6) capable of being connected to a gas pipe is connected to the burner (3); a gas intake valve (61) is provided on the gas supply pipe (6); and a communication device (7) for communicating the gas supply pipe (6) with the burner (3) is provided therebetween, and the communication device (7) is provided with at least two gas intake passages (71) of different orifice sizes and is further provided with a switching mechanism (72) capable of switching between the gas intake passages (71) of different orifice sizes to communicate the gas supply pipe (6) with the burner (3). By means of providing at least two gas intake passages (71) with different orifice sizes on the communication device (7) and configuring the switching mechanism (72), the gas water heater can flexibly adapt to different types of gas, such that a user can easily switch between different gas sources without concerns regarding the problem of low combustion efficiency or unsafe combustion caused by gas pressure differences.
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