Valve for water heater

Abstract

The invention relates to a valve for a water heater. The valve comprises a switching valve provided with a mixed water outlet through hole, a cold water inlet through hole, a cold water feeding through hole and a mixed water inlet through hole, wherein the cold water inlet through hole is connected with a cold water inlet pipeline; the mixed water inlet through hole is connected with a hot water inlet pipeline; the hot water inlet pipeline is connected with the water heater; the cold water feeding through hole is connected with a cold water feeding pipeline leading to a water heater end through a temperature adjusting valve; the cold water feeding pipeline is connected with the water heater; a cold water inlet hole, a cold water feeding hole leading to the water heater end and a cold water outlet hole leading to a mixed water end are formed in the temperature adjusting valve; the cold water inlet hole is connected with the cold water feeding pipeline; the cold water feeding hole is further connected with the cold water feeding pipeline; the cold water outlet hole is connected with a cold water branch pipe; and the cold water branch pipe is radially communicated with the hot water inlet pipeline close to one end of a hot water inlet. The valve realizes double linkage control, and hot water does not flow through a valve core, so that the service life of the valve core is prolonged.

Description

technical field [0001] The invention relates to the field of valve control, in particular to a valve used for solar water heaters. Background technique [0002] Solar water heaters are gradually favored by consumers because of their advantages such as energy saving and environmental protection. There are generally two waterway designs for the control valve of solar water heaters in the current market. One is that the temperature regulating valve is set before the on-off valve, that is, the temperature is adjusted first and then the flow is adjusted; the other is that the on-off valve is set before the temperature regulating valve. First adjust the flow rate and then adjust the temperature. For the case of adjusting the temperature first and then adjusting the flow rate, since the temperature regulating valve is set before the on-off valve, the hot water needs to enter the ceramic piece of the temperature regulating valve core before it can be mixed with the cold water. Adj...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the defect of the water heater valve in the prior art that the hot water passes through the ceramic sheet of the ceramic valve core due to unreasonable waterway design, which reduces the service life of the ceramic sheet, thereby providing a valve that can extend the life of the ceramic sheet. The service life of the water heater valve

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