Heat exchanger for gas water heater

Abstract

A heat exchanger for a gas water heater comprises a shell, a water inlet pipe and a water outlet pipe arranged on the shell, and a plurality of heat exchange plates arranged in the shell, wherein a heat exchange pipe penetrates through the heat exchange plates; the water outlet end of the heat exchange pipe is connected with the water outlet pipe; and the heat exchanger is characterized in that constant temperature pipes are arranged in the heat exchange pipe in the length direction, heat conducting mediums are hermetically arranged in the constant temperature pipes, and heat exchange areas are formed between the inner wall of the heat exchange pipe and the outer walls of the constant temperature pipes. According to the heat exchanger, the constant temperature pipes hermetically provided with the heat conducting mediums are used for carrying out heat exchange with water flowing through the heat exchange areas, so that a uniform water outlet temperature effect is realized, the water useexperience of a user is more comfortable, the constant temperature pipes do not need to be independently heated and are repeatedly used, the utilization rate is high, the energy consumption is low, and the cost is low.

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...

AI Technical Summary

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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