Solar water heating device and control method thereof

Abstract

The invention provides a solar water heating device and a control method thereof. The solar water heating device comprises the following components, namely, a heat collecting module, a heat supply module and a controller, the heat collecting module comprises a solar heat collector with a heat collecting water outlet and a heat collecting water inlet, a heating water tank and an air source heat pump, the heat supply module comprises a heat supply water tank and a heat supply water pipe, the controller is connected with the heat collecting module and the heat supply module, the solar heat collector communicates with the heating water tank and the heat supply water tank through a first heat collecting upper circulating pipe, a second heat collecting upper circulating pipe, a first heat collecting lower circulating pipe and a second heat collecting lower circulating pipe correspondingly, the bottom of the heating water tank communicates with the bottom of the heat supply water tank througha second water mixing pipe, the top of the heating water tank communicates with the top of the heat supply water tank through a first water mixing pipe, the bottom of the heating water tank communicates with the heat supply water pipe through a water return pipe communicating with a first cold water supplementing pipe, a water inlet pipe of the air source heat pump communicates with the bottom ofthe heating water tank. The provided solar water heating device can effectively improve the energy utilization rate and prevent overheating.

Description

technical field [0001] The application belongs to the technical field of solar water heating engineering, and more specifically relates to a solar water heating device and a control method thereof. Background technique [0002] At present, for conventional centralized heat collection and central heating solar water heating devices, there is still a common problem of low energy utilization, which is specifically manifested in the following aspects: [0003] First, due to the influence of unfavorable weather such as night, rain, snow, and cloudy days, the existing solar water heating devices usually have insufficient heat collection and heat supply capabilities. Therefore, in order to ensure the continuity of heat supply, it is necessary to add boilers, Auxiliary heat source equipment such as electric heaters or heat pumps. For the solar water heating device with a single water tank, at night and in rainy days, the water tank must store a certain amount of hot water at a suit...

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Problems solved by technology

[0007] The purpose of the embodiment of the present application is to provide a solar water heating device to solve the technical problem of low energy utilization rate of the solar water heating device in the prior art

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