Heat exchanger and gas water heater

By designing two rows of parallel and spaced heat exchange tube groups in the gas water heater, optimizing the positions of the water inlet and outlet, and combining the ties, spoiler springs and heat exchange fin structures, the problem of local high-temperature vaporization noise in the heat exchanger is solved, and the heat exchange efficiency and noise reduction effect are improved.

CN223400214UActive Publication Date: 2025-09-30WUHU MIDEA KITCHEN & BATH APPLIANCES MFG CO LTD
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Patent Information

Application Number
CN202422814471.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-09-30
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

The heat exchanger of a gas water heater is prone to local high temperatures, which causes local vaporization of water in the heat exchange tubes and produces loud vaporization noise.

Method used

A heat exchanger is designed, including two end plates and multiple heat exchange tubes, forming two rows of parallel and spaced heat exchange tube groups. The water inlet and outlet are set on the first row of heat exchange tube groups. The direction of water flow is opposite to the direction of flue gas flow. Combined with the ties, spoiler springs and heat exchange fin structure, the flue gas flow and heat exchange are optimized.

Benefits of technology

The possibility of water vaporization in the heat exchanger is reduced, the vaporization noise is reduced, and the heat exchange efficiency and overall heat exchange effect are improved.

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Abstract

The utility model discloses a heat exchanger and a gas water heater, and relates to the technical field of water heaters. The heat exchanger comprises two end plates and a plurality of heat exchange pipes, and the heat exchange pipes are installed between the two end plates in a penetrating mode and connected in series to form a heat exchange runner. The plurality of heat exchange tubes are arranged in parallel at intervals to form two rows of heat exchange tube groups, wherein the first row of heat exchange tube group is positioned on the flue gas upstream side of the second row of heat exchange tube group; and the two heat exchange tubes in the first row of heat exchange tube group are respectively provided with a water inlet and a water outlet of the heat exchange runner. According to the technical scheme, vaporization noise of the heat exchanger can be reduced.
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