Solar water heater

Abstract

The invention provides a solar water heater. The solar water heater comprises a water tank and a heat tubes, wherein each heat tube comprises a heat absorption part and a heat release part; each heat release part is arranged in the water tank; and the heat absorption part of each heat tube absorbs solar energy, and heat is transferred to water in the water tank through each heat release part. The solar water heater is characterized in that the heat tubes are flat tubes. According to the solar water heater provided by the invention, with adoption of the flat heat tubes, a fluid in each heat tube can adequately contact with the corresponding tube wall to ensure heat absorption and heat release effects, thus solar energy absorption is reinforced, and energy is saved.

Description

technical field [0001] The invention belongs to the field of solar energy, in particular to a solar water heater. Background technique [0002] With the rapid development of modern society and economy, the human demand for energy is increasing. However, the reserves of traditional energy such as coal, oil, and natural gas continue to decrease and become increasingly scarce, resulting in rising prices. At the same time, the environmental pollution caused by conventional fossil fuels is also becoming more and more serious. These greatly limit the development of society and the improvement of human life quality. . Energy issues have become one of the most prominent issues in the contemporary world. Therefore, seeking new energy sources, especially non-polluting clean energy sources has become a research hotspot. [0003] Solar energy is an inexhaustible clean energy with a huge amount of resources. The total amount of solar radiation energy received by the earth's surface ev...

AI Technical Summary

Problems solved by technology

However, the water circulation system of the solar thermal collection system is a closed system. The circulating water is circulated and heated, but some non-condensable gases will be produced during the circulating water circulation. In addition, sometimes the water in the collector will form when the sun is strong. Soda-water mixture, so in the case of heated water for heat exchange, the heat transfer coefficient is reduced due to the presence of non-condensable gas or the formation of steam-water hot water, so that solar energy cannot be fully utilized

[0005] In view of the above problems, the present invention provides a new solar water heater, thereby solving the problem of low heat transfer coefficient in the case of heat exchange between solar hot water and its fluid

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