A gas water heater with multiple antifreeze functions
By incorporating an air supply structure, a heating structure, and a reversing valve into the gas water heater, the problem of icing of heat exchange tubes in extremely cold weather is solved, achieving multiple antifreeze functions and improving the reliability and safety of the equipment.
CN224454896UActive Publication Date: 2026-07-03YOUNG GAS APPLIANCES IND CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YOUNG GAS APPLIANCES IND CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-03
AI Technical Summary
Technical Problem
In extremely cold weather, the heat exchange tubes of gas water heaters are prone to freezing and expansion, which can lead to performance degradation and the risk of breakage at connection points.
Method used
The system includes an air supply structure, a heating structure, and a reversing valve. The air supply structure exhausts high-temperature indoor air, the heating structure heats the heat exchange tubes, and the reversing valve drains water in the heat exchange tubes to reduce the amount of water in them.
Benefits of technology
It effectively prevents heat exchange tubes from freezing, reduces performance degradation and the risk of breakage, and improves the reliability of the equipment in low-temperature environments.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224454896U_ABST
Abstract
This utility model discloses a gas water heater with multiple anti-freeze functions, including: a gas heat exchanger; an air supply structure; a piping system, the piping system including heat exchange tubes and a reversing valve, the reversing valve including a valve body and a valve core, the valve body having a valve cavity, and the valve body having a first interface, a second interface, and a third interface communicating with the valve cavity, the first interface communicating with the heat exchange tubes, the second interface communicating with the water inlet pipe, and the third interface communicating with the drain pipe; and a heating structure. When the outdoor temperature is low, the air supply structure can discharge relatively warm indoor air through the gas outlet of the gas heat exchanger to reduce the entry of cold air. Furthermore, the heating structure can heat the heat exchange tubes. Further, the reversing valve can reverse to close the second interface and connect the first and third interfaces to drain water, reducing water accumulation in the heat exchange tubes. Thus, this utility model has multiple anti-freeze measures to prevent the heat exchange tubes from freezing, based on actual conditions.
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