A solar heat collector with high light collection and heat conduction

Abstract

The invention discloses a solar heat collector with high light collection and heat conduction, which belongs to the technical field of solar heat collection. A pair of light reflectors are installed at the bottom of the main heat collection tube to reflect sunlight on the backlight surface of the main heat collection tube and expand the main heat collection tube. In addition, multiple auxiliary heat collecting tubes are distributed on the upper end of the main heat collecting tube. The upper and lower end walls of the auxiliary heat collecting tubes are covered with magnetic columns through elastic magnetic isolation layers, and the magnetic columns are connected to the heat conducting plate through memory alloy rods. , when the temperature of the light-receiving surface of the auxiliary heat collector rises, the memory alloy rod returns to its high-temperature spring phase state, and its contraction makes the magnetic column squeeze the elastic magnetic isolation layer, and the elastic magnetic isolation layer deforms and weakens the magnetic isolation effect on the magnetic column , so that the magnetic strip located below acts as a magnetic attraction for the displaced magnetic column, prompting the auxiliary heat collecting tube to rotate and exchange its light-receiving surface, so that the auxiliary heat collecting tube can be fully heated evenly and effectively conduct heat to the heat transfer medium.

Description

technical field [0001] The invention relates to the technical field of solar heat collection, in particular to a solar heat collector with high light collection and heat conduction. Background technique [0002] A solar collector is a device that converts the sun's radiant energy into heat energy. Since the solar energy is relatively scattered, it must be concentrated, and the heat collector is a key part of various solar energy devices. [0003] Existing heat collectors used for solar water heaters generally use films of various lighting materials to lay on heat collecting tubes to efficiently collect direct sunlight. However, the heat collecting tube can only absorb light energy on the side facing the sun, while the backlight side is difficult to absorb light energy. The temperature of the backlight surface of the heat collecting tube is low, so it is difficult to achieve uniform heating, so that the heat transfer medium stored in the heat collecting tube is difficult to ...

AI Technical Summary

Problems solved by technology

However, the heat collecting tube can only absorb light energy on the side facing the sun, while the backlight side is difficult to absorb light energy. The temperature of the backlight surface of the heat collecting tube is low, so it is difficult to achieve uniform heating, so that the heat transfer medium stored in the heat collecting tube is difficult to fully absorb. Heat conduction, resulting in insufficient solar heat collection efficiency and poor heat conduction effect

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