Solar water heater with heat collection tubes having different tube pitches

Abstract

The invention provides a solar water heater which comprises a heat collector and a water tank connected with the heat collector, wherein the heat collector comprises a first reflective surface, a second reflective surface and heat collection tubes which are positioned between the first reflective surface and the second reflective surface in multiple rows, the tube pitches of a first row of heat collection tubes close to the first reflective surface are large, and the farther away from the first reflective surface is, the smaller the tube pitches of the same rows of heat collection tubes is. By arranging the heat collection tubes having different tube pitches, the solar energy can be utilized fully.

Description

technical field [0001] The invention belongs to the field of solar energy, in particular to a solar water heater with different distances between heat collecting tubes. Background technique [0002] As a clean and renewable energy, solar energy has the advantages of no environmental pollution and no safety hazards, which are unparalleled by other energy sources. With the increasing tension of electricity and gas consumption across the country, solar water heaters are becoming more and more popular. Traditional solar water heaters install heat collecting tubes and water tanks on the roof of the building. The heat collecting tubes absorb the heat of the sun to increase the temperature of the water. Hot water is stored in the water tanks. When needed, hot water is introduced from outdoor hot water pipes. Indoor, 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 us...

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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