Temperature self-adjusting type water mixing valve for water heater

Abstract

The invention discloses a temperature self-adjusting type water mixing valve for a water heater. The temperature self-adjusting type water mixing valve comprises a main valve pipe, a first auxiliary valve pipe is connected into the main valve pipe in a sealed and sliding mode, a second auxiliary valve pipe is connected into the first auxiliary valve pipe in a sealed and sliding mode, and a plurality of first through holes and second through holes are formed in the side wall of the first auxiliary valve pipe and the side wall of the second auxiliary valve pipe correspondingly; and a first annular groove is formed in the side wall of the main valve pipe, a second annular groove is formed in the inner bottom of the first through hole, a pushing device for pushing the first auxiliary valve pipe to move is installed on the main valve pipe, and the pushing device comprises a magnetic ring, a spring, a limiting ring, a solenoid and a power supply mechanism. By arranging the pushing device composed of a thermoelectric power generation piece, the solenoid, the spring and other components, the hot water flow and the cold water flow can be automatically adjusted according to the temperature of water discharged by the first auxiliary valve pipe, adjustment is rapid and timely, and therefore the bathing requirement of people is met.

Description

technical field [0001] The invention relates to the technical field related to valves, in particular to a self-regulating temperature-type water mixing valve for water heaters. Background technique [0002] The water mixing valve can adjust the outlet water temperature of the water heater, generally by adjusting the flow of hot water and cold water to adjust the temperature. [0003] For example, the application number "201911258029.9" proposes "a temperature self-adjusting water mixing valve for household electric water heaters". However, in actual use, it takes a certain amount of time for the thermal expansion and contraction medium to expand and contract due to temperature changes, the change process is very slow, and its adjustment function has a certain hysteresis. Therefore, in the actual bathing process, It often causes the discharged water temperature to be inconsistent with people's expectations, and it is difficult to meet people's bathing needs. In view of this...

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Problems solved by technology

[0003] For example, the application number "201911258029.9" proposes "a temperature self-adjusting water mixing valve for household electric water heaters". However, in actual use, due to thermal expansion and contraction of the medium due to temperature changes, it takes a certain amount of time, the change process is very slow, and its adjustment function has a certain hysteresis. Therefore, in the actual bathing process, Often the temperature of the discharged water does not match people's expectations, and it is difficult to meet people's bathing needs

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