Water heater and its piping cold water recovery system

Abstract

The invention discloses a pipeline cold water recovery system for a water heater, comprising: a water heater main body provided with a water chamber and a water filling port for filling the water chamber; a hot water pipe communicating with the water chamber; The terminal is a user terminal; one end of the cold water return pipe is connected to the water outlet near the hot water pipe, and the other end is connected to the water chamber; The volume of the water holding chamber can be changed when sliding in the water chamber; the water bag that is installed on the cold water return pipe and can produce deformation; the elastic member is used to drive the water barrier to move in the direction that can reduce the volume of the water holding chamber ; The temperature control valve is used to sense the water temperature at the water outlet of the hot water pipe and control the on-off of the cold water return pipe. With such arrangement, the pipeline cold water recovery system of the water heater provided by the present invention can avoid the problems of wasting time and wasting water resources because the cold water needs to be discharged first when hot water is used.

Description

technical field [0001] The invention relates to the technical field of water heaters, more specifically, to a water heater and a pipe cold water recovery system thereof. Background technique [0002] When the water heater in the prior art is in use, when the hot water tap is turned on, cold water flows out first, and hot water will flow out after the cold water is released for a period of time. This phenomenon is more obvious in some places far away from the hot water supply source, such as residential areas and hotels with unified hot water supply. The main reason is that when the user does not use the hot water, the hot water stays in the water pipe and becomes cold. When hot water is used again, the cold water in the pipeline needs to be released first. This method of releasing cold water first when using hot water not only prolongs the waiting time for hot water, but also wastes water resources. [0003] Therefore, how to solve the problem of wasting time and wasting w...

AI Technical Summary

Problems solved by technology

When using hot water again, the cold water in the pipeline needs to be released first. This method of releasing cold water first when using hot water not only prolongs the waiting time for hot water, but also wastes water resources

[0003] Therefore, how to solve the problem of wasting time and wasting water resources caused by the water heater in the prior art because the cold water needs to be released first when using hot water has become an important technical problem to be solved by those skilled in the art.

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