An anti-mixing water valve and a water heater water supply system using the valve

Abstract

The invention relates to an anti-mixing water valve and a water heater water supply system using the valve. The anti-mixing water valve includes a pipe body, which is divided into a water inlet area and a water outlet area which are independent of each other along the axial direction. A through hole and a second through hole; a valve stem, which can move away from the second through hole under the action of water pressure; an elastic member, which keeps the valve stem moving in a direction close to the second through hole The blocking member can be movably arranged in the pipe body, and a third through hole that can communicate with the first through hole is provided on it, and the blocking member is linked with the valve stem; the water pipe can be moved along the axial direction of the pipe body. It is movably arranged in the pipe body, one end is connected with the end of the valve stem facing the water outlet area, the other end is closed and can move to the water outlet area, and a water inlet and a water outlet are opened on the peripheral wall of the water pipe. The anti-mixing water valve solves the most common unfavorable situation of hot water, mixed water or no water coming out of the faucet when the most remote faucet turns on cold water.

Description

technical field [0001] The invention belongs to the technical field of water heaters, and in particular relates to an anti-mixing water valve and a water heater water supply system using the valve. Background technique [0002] With the improvement of consumers' quality of life requirements, "zero cold water" gas water heaters with instant heating function are becoming more and more common. When installing "zero cold water" gas water heaters, there are two actual situations: with and without return pipes. For families with return water pipelines, when the user is not in the process of using hot water, the water heater will start the circulating water pump in the water heater when it detects that the water temperature in the pipeline is lower than the set temperature. Water flows into the water heater to be heated until the water in the pipeline is heated to a specified temperature, and then the water pump stops, and the water heater also stops working. [0003] For familie...

AI Technical Summary

Problems solved by technology

In this case, at the farthest water point 9, when the user turns on the cold water, part of the water flow will flow from the cold water branch 811, and the other part will flow from the hot water branch 821, resulting in "mixed water", or even all The water flows from the hot water branch 821, which will cause the water heater to start. When the user wants to use cold water, hot water will come out, which will cause great trouble to the user.

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