Butterfly solar energy ejection driving heating and heat transfer system using solid granules and blocks

Abstract

The invention aims to provide a butterfly solar energy ejection driving heating and heat transfer system using solid granules and blocks. The system comprises an ejection driving pump for solid granules and blocks and a butterfly solar energy collecting system. Solid granules and blocks are driven by the ejection driving pump for solid granules and blocks and enter a solar energy photo-thermal converter arranged at the focus portion of the butterfly collecting system along an upstream pipe for solid granules and blocks; the solar energy photo-thermal converter converts the solid granules and blocks into heated solid granules and blocks with the temperature of 600 DEG C-1200 DEG C; then the solid granules and blocks enters a heat storage and exchange device along a downstream pipe; the heat storage and exchange device exchanges heat with power-generating working media so as to reduce the temperature of the solid granules and blocks to a range of 100 DEG C-400 DEG C; the low-temperature solid granules and blocks enter a loading box along a connecting pipeline and then are driven by the ejection driving pump for solid granules and blocks to enter the solar energy photo-thermal converter, so that ejection driving is carried out by the ejection driving pump by using the solid granules and blocks; and the solid granules and blocks are cycled inside a closed cycling pipeline, so that collection, heat transfer and heat storage of the high temperature are achieved.

Description

technical field [0001] The invention relates to utilization of solar thermal energy, in particular to heating, heat transfer and utilization of dish solar energy. Background technique [0002] In the field of solar energy, molten salt is used for heat storage and heat transfer. Although molten salt can achieve high-temperature storage, it needs heat energy to heat it because it needs to be transformed from solid to liquid. At the same time, the toxicity, economy, and safety of molten salt are also high. There are problems whereby the use of molten salt heat storage is limited. At the same time, its heat transfer temperature is usually not higher than 600 degrees, and no heat transfer can be achieved for higher temperatures. [0003] In the field of solar energy, air or other gases are also used for heat storage, but their thermal fusion is small, and large-scale thermal energy storage cannot be realized. [0004] For dish solar concentrating systems, molten salt is usually...

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Problems solved by technology

[0002] In the field of solar energy, molten salt is used for heat storage and heat transfer. Although molten salt can achieve high-temperature storage, it needs heat energy to heat it because it needs to be transformed from solid to liquid. At the same time, the toxicity, economy, and safety of molten salt are also high. There are problems that limit the use of molten salt heat storage

At the same time, its heat transfer temperature is usually not higher than 600 degrees, and no matter how high the temperature is, heat transfer cannot be achieved.

[0003] In the field of solar energy, air or other gases are also used for heat storage, but its thermal fusion is small, and large-scale thermal energy storage cannot be realized

[0004] For dish solar concentrating systems, molten salt is usually used for heat transfer, but due to the limitation of molten salt temperature, it can only provide a temperature of 600 degrees. In order to achieve high temperature, air is used for heat transfer. However, the heat capacity of air is very small, so it is difficult transfer large amounts of heat

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