Solar water heater with sterilization function

Abstract

The invention discloses a solar water heater with the sterilization function, and relates to the technical field of solar energy application. The solar water heater with the sterilization function comprises heat collection pipes, a water storage tank and a high-performance magnalium support. A heater-preservation layer and a heater-preservation shell are arranged on the water storage tank, a water outlet is formed in the bottom of the water storage tank, and the top of the water storage tank is provided with an anti-explosion valve and an air hole. The heat collection pipes comprise vacuum outer pipe bodies, wherein each vacuum outer pipe body is composed of coaxial glass pipes arranged on two layers, and an interlayer of each vacuum outer pipe body is vacuum; the upper end of each vacuum outer pipe body is provided with a water inlet, and an inner cavity of each vacuum outer pipe body is plated with a TiO2 nanometer coating; each heat collection pipe further comprises an inner pipe body, the lower end of each inner pipe body extends into the inner cavity of the corresponding vacuum outer pipe body, and the upper end of each inner pipe body is communicated with the water storage tank. The TiO2 nanometer coatings are excited by ultraviolet light in sunshine, strong-oxidizing free radical groups are generated on the surfaces of the TiO2 nanometer coatings, oxidative decomposition is conducted on various organic pollutants in water through the strong-oxidizing free radical groups, and bacteria and viruses in the water are killed; sterilized cold water is heated through the inner pipe bodies of the heat collection pipes to form hot water, and the hot water enters the water storage tank to be stored and used. According to the solar water heater with the sterilization function, solar energy is directly utilized, and both the purpose of sterilization and disinfection and the purpose of obtaining the hot water are achieved.

Description

technical field [0001] The invention relates to a solar sterilization water heater, which belongs to the technical field of solar energy application. Background technique [0002] Solar energy is a new type of green energy, and its development and utilization are of great significance to solve the energy shortage and reduce the pressure of environmental pollution. Photothermal conversion is an efficient way of utilizing solar energy. In this respect, China is at the leading level in the world, and solar water heating has become common in daily life. How to develop new ways and improve light utilization efficiency is an important direction for the further development of clean solar energy. [0003] Existing solar water heaters use light energy to heat water at room temperature for people to use, but generally cannot play the role of sterilization and disinfection while producing hot water. The temperature of hot water in ordinary solar water heaters is generally 40-60 ℃, an...

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Problems solved by technology

However, due to the low ultraviolet content in sunlight and less sh

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