Volumetric gas water heater
A gas water heater, volumetric technology, applied to water heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of exhaust flue corrosion, small heat exchange area, short flue gas flow path, etc., and achieve easy condensation , The production process is simple, and the effect of improving heat exchange efficiency
Active Publication Date: 2014-06-18
A O SMITH CHINA WATER HEATER CO LTD
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Problems solved by technology
[0003] However, in actual use, it is found that the flue gas flow path in the heat exchange flue is short and the heat exchange area is small, and the waste heat of the flue gas cannot be fully exchanged with the water in the inner tank, and the residual smoke discharged from the water heater still has a high Temperature, while losing heat, it may also cause greater corrosion to the exhaust flue
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[0025] A volumetric gas water heater, comprising: an inner tank 1; a combustion device 2 for heating the inner tank 1; a heat exchange flue 3 passing through the inner tank 1; and at least partially covering the inner tank 1 The outer water tank surface heat exchanger 4, its inlet port 41 is connected to the heat exchange flue 3, and the outlet port 42 is connected to the discharge end, the shell of the water tank surface heat exchanger 4 forms a sandwich with the outer wall of the inner tank 1, and The interlayer is provided with at least one flow guide baffle 43 , and the flow guide baffle 43 is provided with a flow guide hole 44 .
[0026] In one embodiment, the flow guide baffles 43 are arranged in parallel and misplaced at intervals in the interlayer, and one end of one of the flow guide baffles does not extend to the end of the surface heat exchanger of the water tank, but It only extends to a certain distance from the end, so that the flue gas can pass through this dist...
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The invention provides a volumetric gas water heater. The volumetric gas water heater comprises an inner container, a combustion device, a heat exchange flue and a water tank surface heat exchanger, wherein the combustion device is used for heating the inner container, the heat exchange flue penetrates through the inner container, at least part of the water tank surface heat exchanger covers the inner container, the inlet end of the water tank surface heat exchanger is communicated with the heat exchange flue, and the outlet end of the water tank surface heat exchanger is connected with a discharge end. A shell of the water tank surface heat exchanger and the outer wall of the inner container form an interlayer, at least one flow diversion baffle is arranged in the interlayer, and flow diversion holes are formed in the flow diversion baffles. Accordingly, full heat exchange is conducted on smoke and water in the inner container in the water tank surface heat exchanger, heat exchange efficiency is remarkably improved, and smoke is easily condensed.
Description
technical field [0001] The invention relates to a volumetric gas water heater, in particular to a volumetric gas water heater with a multi-stage heat exchange device. Background technique [0002] The flue gas produced by the combustion device of the gas water heater has a very high temperature. If this part of the heat is not utilized, it will cause great waste. Existing volumetric gas water heaters try to solve this problem by secondary heat exchange. The volumetric gas water heater is equipped with a water tank, which contains hot water heated by the flame once. The inner tank is also equipped with a heat exchange flue, and the high temperature flue gas generated by the combustion device passes through the heat exchange flue. It produces secondary heat exchange with the hot water in the inner tank, and utilizes part of the waste heat of the flue gas. [0003] However, in actual use, it is found that the flue gas flow path in the heat exchange flue is short and the heat ...
Claims
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IPC IPC(8): F24H1/18F24H9/00
Inventor 颜松马鸿飞王双义
Owner A O SMITH CHINA WATER HEATER CO LTD