Combination valve, water heating system and method for controlling same

Abstract

The invention provides a combination valve, a water heating system and a method for controlling the same. The combination valve comprises a valve seat, a water feeding valve and a selector valve. The water feeding valve and the selector valve are fixed onto the valve seat; a tap water inlet, a hot water outlet, a cold water outlet, a hot water inlet and a water inlet-outlet combination are formed in the valve seat, the tap water inlet is communicated with the cold water outlet, and the water inlet-outlet combination is connected with the tap water inlet by the water feeding valve; the selector valve comprises a first valve body and a second valve body, the first valve body and the second valve body are in mutual linkage control to be alternately turned on and off, the water inlet-outlet combination is connected with the hot water outlet by the first valve body, and the hot water inlet is connected with the hot water outlet by the second valve body. The combination valve, the water heating system and the method have the advantages that the combination valve is directly connected with tap water, an energy-consuming water heater and a solar water heater, water feeding can be controlled by the integrated valves of the combination valve, hot water sources can be selected by the integrated valves of the combination valve, accordingly, users can conveniently change the hot water sources, connecting pipelines can be simplified, and the water heaters can be conveniently mounted.

Description

technical field [0001] The invention relates to a water heater, in particular to a combined valve, a hot water system and a control method for the hot water system. Background technique [0002] At present, water heaters are divided into energy-consuming water heaters (such as electric water heaters and gas water heaters) and solar water heaters according to heating methods. Energy-consuming water heaters usually have independent water inlets and outlets, while solar water heaters have the same inlet and outlet. Users who have both energy-consuming water heaters and solar water heaters installed in their homes usually need to close the valve of one of the water heaters and open the valve of the other water heater when choosing to use different hot water sources. During the water heater installation process, it is necessary to set corresponding valves for the energy-consuming water heater and the solar water heater to independently control the water in and out, and the valves...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a combined valve, hot water system and a control method for the hot water system, which solves the defects in the prior art that it is inconvenient for users to switch hot water sources, and the connecting pipeline of the water heater is too complicated and cumbersome to install. Through the combination valve, it is convenient for the user to switch the hot water source, simplify the connection pipeline of the water heater, and facilitate the installation of the water heater

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