Heat exchanger for gas water heater

Abstract

A heat exchanger for a gas water heater, comprising a housing, a water inlet pipe and an outlet pipe arranged on the housing, and a plurality of heat exchange fins arranged in the housing, wherein heat exchange tubes are perforated in the heat exchange fins, The water outlet end of the heat exchange tube is connected to the water outlet pipe, and it is characterized in that a thermostatic tube is arranged inside the heat exchange tube along the length direction, and a heat conducting medium is sealed inside the thermostatic tube, and the inner wall of the heat exchange tube is connected to the inner wall of the heat exchange tube. A heat exchange area is formed between the outer walls of the thermostatic tubes. The present invention uses a thermostatic tube sealed with a heat-conducting medium to exchange heat with the water flowing through the heat exchange area to achieve a uniform water outlet temperature effect, making the user's water experience more comfortable, and the thermostatic tube does not need to be heated separately, and can be reused multiple times. High efficiency, low energy consumption and low cost.

Description

technical field [0001] The invention relates to the field of gas water heaters, in particular to a heat exchanger for gas water heaters. Background technique [0002] As an indispensable electrical appliance in modern families, water heaters bring great convenience to people's lives, especially gas water heaters are widely used because of their high thermal efficiency, fast heating speed, and instant heating. [0003] Existing gas-fired water heaters mainly generate hot water for supplying daily needs such as bathing through gas combustion to exchange heat with incoming water. When the inlet water pressure of the water heater is unstable, the water flow rate fluctuates, so that the temperature of the hot water generated through heat exchange fluctuates. At the same time, the working principle of the gas water heater is that the combustion stops after the user turns off the tap. , but the heat generated will continue to exchange heat through the heat sink, which will cause t...

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Problems solved by technology

However, the original water volume in the constant temperature tube in this way is fixed, that is, the water volume that can stabilize the outlet water temperature is limited, and the effect of stabilizing the outlet water temperature lasts for a short time. Fluctuation cannot provide continuous and effective stability maintenance; at the same time, after the original water in the thermostatic tube is mixed and flowed out, before the thermostatic tube needs to be used to stabilize the outlet water temperature next time, the thermostatic tube needs to be supplemented with water again, which cannot be used multiple times, and the use efficiency is low

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