Water channel system for gas water heater, gas water heater and control method of water channel system

Abstract

The invention discloses a water channel system for a gas water heater. The system comprises a heat exchanger, a first heating pipe, a second heating pipe, a third heating pipe, a water inlet pipeline,a water outlet pipeline, a first stop valve, a second stop valve, a third stop valve and a fourth stop valve, wherein the first heating pipe, the second heating pipe and the third heating pipe penetrate through the heat exchanger, one end of the first heating pipe, one end of the second heating pipe and one end of the third heating pipe are all connected with the water inlet pipeline, the other end of the first heating pipe, the other end of the second heating pipe and the other end of the third heating pipe are all connected with the water outlet pipeline, and the first stop valve is arranged on the pipeline connecting the first heating pipeline and the second heating pipeline with one end of the water inlet pipeline. During use of the system, when the water inlet temperature is high, the water channel system is adopted, so that the stroke of water flow flowing through the heat exchanger is effectively reduced, the heat exchange contact time of the water flow and high-temperature flue gas is reduced, the temperature rise of the water outlet end can be reduced, meanwhile, under the condition, the water heater does not operate with the minimum load, the combustion load is improved,so that generation of condensed water is avoided.

Description

technical field [0001] The invention belongs to the technical field of gas water heaters, and in particular relates to a waterway system for a gas water heater, a gas water heater and a control method thereof. Background technique [0002] With the improvement of living standards, after meeting the heating requirements, consumers have increasingly urgent demands for the zero-cold water function of dual-purpose gas water heaters. Most of the gas water heaters currently on the market, on the one hand, when the user takes a shower in summer, the water temperature at the water outlet is still high even though the water heater burns at the minimum load due to the high temperature of the incoming water, which affects the comfort of the user. At the same time, because the burner is burning at the minimum load, more condensed water will be generated inside the heat exchanger at this time. The generation of condensed water will corrode the burner and heat exchanger, and affect the se...

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Problems solved by technology

[0003] In view of this, the main purpose of the present invention is to provide a waterway system for gas water heaters, which solves the problems in the prior art that the water flow is too small when users use water in peak hours, and the water temperature is too high when they use water in summer. Having Condensation Problems

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