Water heater and control method thereof

Abstract

The invention relates to the field of water heaters, in particular to a water heater and a control method thereof. The water heater comprises a diverting controller, a first heat exchanger, and a second heat exchanger, wherein the diverting controller is arranged on a first water return pipe and is suitable for diverting the first water return pipe into two paths and controlling the flow of the two outlet ends; the first heat exchanger comprises a first heating pipe and a second heating pipe which are independent from each other, the inlet end of the first heating pipe and the inlet end of thesecond heating pipe communicate with the two outlet ends of the diverting controller, and the outlet end of the first heating pipe communicates with a heating loop; and a first medium inlet end communicates with the outlet end of the second heating pipe, a first medium outlet end communicates with the first water return pipe, and a second medium inlet end and a second medium outlet end of the second heat exchanger communicate with a domestic water pipeline. The water heater can realize simultaneous supply of domestic hot water and heating.

Description

technical field [0001] The invention relates to the field of water heaters, in particular to a water heater and a control method thereof. Background technique [0002] Water heater is a commonly used heat exchange equipment. Taking household gas wall-hung boilers as an example, most existing households use wall-hung boilers for both domestic hot water and heating water. Although this type of wall-hung boiler can provide heating and hot water And domestic hot water function, but can not provide heating hot water and domestic hot water at the same time. That is to say, when heating is enabled, the water heated in the main heat exchanger enters the heating circulation system, and domestic hot water cannot be produced at this time. And when domestic hot water is started, in order to ensure the priority supply of domestic hot water, the water heated in the main heat exchanger enters the domestic hot water circulation system, causing the heating system to cut off the supply. For...

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Problems solved by technology

[0004] In order to solve the technical problems of waste of heat and low thermal efficiency when the existing water heater supplies domestic hot water and heating at the same time, the present invention provides a water heater and its control method

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