Gas water heater

Abstract

The invention relates to a gas water heater. In the starting and using process of the gas water heater, when hot water needs to be used again after hot water using is paused for a period of time in the middle, in the initial stage of using hot water of the gas water heater, due to starting delay of a combustor, the temperature of hot water at the water outlet end of a main heat exchanger is relatively low, at the moment, for example, a controller controls a first switch valve to be closed and controls a second switch valve to be opened, so that water discharged by the main heat exchanger is discharged outwards through a first phase change heat storage module and a hot water connector pipe to be supplied to a user, the first phase change heat storage module heats the water discharged by the main heat exchanger through heat stored in the first phase change heat storage module, and therefore, the constant temperature effect can be improved; and besides, when a first temperature sensor can sense that the water temperature information of the hot water connector pipe is relatively low or relatively high, the controller controls a first flow adjusting valve to reduce or increase the opening degree, so that the water temperature of the hot water connector pipe is controlled within the preset range, and therefore the constant temperature effect can be improved.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to a gas water heater. Background technique [0002] Traditionally, gas water heaters are installed on balconies or in kitchens. After turning off and on again, the hot water output from the hot water outlet pipe of the gas water heater is delayed for a certain period of time due to the delay in the cleaning of the fan of the gas water heater and the re-ignition of the burner. It will be hot and cold, and the water temperature will fluctuate greatly, bringing users an uncomfortable bathing experience. Contents of the invention [0003] The technical problem solved by the present invention is to provide a gas water heater, which can effectively improve the constant temperature effect of hot water outlet. [0004] Above-mentioned technical problem is solved by following technical scheme: [0005] A gas water heater, the gas water heater includes: a host, the host is provided...

AI Technical Summary

Problems solved by technology

[0002] Traditionally, gas water heaters are installed on balconies or in kitchens. After turning off and on again, the hot water output from the hot water outlet pipe of the gas water heater is delayed for a certain period of time due to the delay in the cleaning of the fan of the gas water heater and the re-ignition of the burner. It will be hot and cold, and the water temperature will fluctuate greatly, bringing users an uncomfortable bathing experience

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