A control method for a dual-purpose furnace

Abstract

The invention relates to a dual-purpose furnace, which includes a heating water pipeline, a heat exchanger, and a domestic water pipeline; it also includes a water supply pipeline connected between the water inlet end and the water outlet end of the domestic water pipeline; and a water supply valve arranged on the water supply pipeline ; The first temperature sensor is set on the water outlet section of the domestic water pipeline; the controller is electrically connected to the water supply valve and the first temperature sensor. The dual-purpose furnace in the present invention actively supplies cold water to the water outlet section of the domestic water pipeline through the water supply pipeline, thereby satisfying the comfort of use and preventing the user from being scalded. The control method of the dual-purpose boiler of the present invention can realize active water replenishment, and in addition, during the intermittent process of domestic water use by the user, the water circulation can be carried out through the domestic water circulation loop, and the switching between the heating circulation loop and the hot water circulation loop can be performed. The conduction mode realizes rapid cooling of the water in the domestic water pipeline, thereby ensuring that the temperature of the output domestic water can drop to the set temperature when the user uses water.

Description

technical field [0001] The invention relates to the technical field of dual-purpose furnaces, in particular to a control method for preventing high temperature of re-outlet water of a dual-purpose furnace. Background technique [0002] At present, most of the dual-purpose stoves circulating on the market are upward-drawing dual-purpose stoves. The main functions of the upward-drawing dual-purpose stoves are heating and bathing. The dual-purpose heating furnace includes a heating circulation loop and a domestic outlet water circulation loop, and the dual-purpose heating boiler usually uses a plate heat exchange method to exchange heat for domestic water, and then forms hot water to supply users with domestic water. When the dual-purpose boiler is in use, domestic hot water is usually given priority. When the dual-purpose boiler is in the working state of domestic hot water, the heating part will suspend operation. After the domestic hot water stops, if it does not restart wit...

AI Technical Summary

Problems solved by technology

[0004] The first technical problem to be solved by the present invention is to provide a method that can actively reduce the water temperature in the domestic water pipeline when the water temperature in the water outlet section of the domestic water pipeline is detected to be too high, thereby preventing the user from using The water temperature is too high when the domestic hot water is used to improve the user experience of the dual-purpose stove

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