Solar water heater with multiple temperature sensors

Abstract

The invention provides a solar water heater with multiple temperature sensors. The water heater comprises a central controller, a heat collector and a water tank connected with the heat collector. The water tank comprises a container provided with the temperature sensors. The temperature sensors are located at the hot water outlet, the cold water inlet and other positions of the water tank container, and on a hot water inlet pipe and / or a cold water outlet pipe. An adjusting unit generates an adjusting signal for controlling the solar water heater according to the average temperature sensed by the temperature sensors, water temperature measuring accuracy is guaranteed, and uniformity of water heating is guaranteed.

Description

Technical field [0001] The invention belongs to the field of solar energy, and particularly relates to a solar water heater controlled by a plurality of temperature sensors. Background technique [0002] As a clean and renewable energy, solar energy has the advantages of no environmental pollution and no safety hazards unmatched by other energy sources. With the increasing shortage of electricity and gas throughout the country, solar water heaters are becoming more and more popular. Traditional solar water heaters install heat collection tubes and water tanks on the roof of the building. The heat collection tubes absorb the heat of the sun to raise the water temperature, and the hot water is stored in the water tank. When needed, the hot water is introduced from the outdoor hot water pipe. Indoors, for people to use. In summer, due to the long time and high intensity of sunlight, the water temperature in the water tank is too high and the hot water cannot be used directly. The ...

AI Technical Summary

Problems solved by technology

In summer, due to the long time and high intensity of sunlight, the water temperature in the water tank is too high, and the hot water cannot be used directly. It is necessary to rely on the hot water pipe to connect with the tap water pipe, and the water temperature is adjusted by the mixing valve, so that the temperature of the outlet water fluctuates greatly. It often needs to be adjusted repeatedly during use, which is not only troublesome, but also greatly reduces the comfort of bathing

In winter, especially in the north, due to the short light time and low intensity, the hot water in the water tank often cannot reach the temperature required by people. At this time, the heater in the water tank works to heat the hot water to the required temperature first. Therefore, it is very inconvenient for people to use it in winter, and it is easy to catch a cold. Not only is the comfort of bathing poor, but it also causes a waste of water resources.

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