Single-tank packed bed heat storage device following generalized Murray's law and provided with bionic choroid structure and using method thereof

Abstract

A single-tank packed bed heat storage device following the generalized Murray's law and provided with a bionic choroid structure and a using method thereof, and belongs to the field of energy storage.The problems of low heat storage density, small heat exchange area and uneven heat storage speed in a traditional packed bed heat storage system are solved. The heat storage device is characterized by comprising a storage tank, a bracket is arranged in the storage tank in the form of the bionic choroid structure, heat storage balls with different diameters following the generalized Murray's law are distributed in the storage tank, and the bracket is used for supporting the heat storage balls and preventing the heat storage balls from floating at will. The using method achieves heat storage, heat release and heat storage through the heat storage balls which follow the generalized Murray's law and are provided with the bionic choroid structure. By changing the arrangement mode and size of the heat storage balls in the storage tank, compared with the traditional system, the heat storage system achieves higher heat storage efficiency, higher heat storage density and faster thermal response capability, and the bionic choroid structure is a naturally selected efficient nutrient delivery system which has unique advantages in substance transportation and energy transfer.

Description

technical field [0001] The invention relates to a single-tank stacked-bed heat storage device, in particular to a single-tank stacked-bed heat storage device with a bionic vein structure arranged in accordance with the generalized Murray's law and a method for using the same, belonging to the technical field of energy storage. Background technique [0002] At present, research on solar energy is gradually increasing, but due to the periodicity of solar radiation, it is necessary to temporarily store the obtained energy. At present, it is mainly stored by heat storage tanks. The more common heat storage methods are divided into double-tank heat storage system and single-tank heat storage system. Among them, the commercial heat storage tank often adopts a double-tank heat storage system, which is composed of cold and hot double tanks, but the system costs a lot and occupies a large area. The single-tank heat storage system is also called thermocline heat storage. The heat sto...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low heat storage density, small heat exchange area and uneven heat storage speed in the traditional stacked bed heat storage system, and to provide a unit with bionic vein structure arranged according to the generalized Murray's law. Tank stacked bed heat storage device and its use method, by adopting the layout form of bionic venation structure, the heat storage unit is arranged according to the generalized Murray's law in the axial and radial directions according to the venation structure, and the accumulation form of the stacked bed is improved

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