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A double-layer multi-surface gradient temperature difference heat transfer structure

A temperature difference and gradient technology, applied in heat exchange equipment, lighting and heating equipment, etc., can solve the problems of less consideration of heat source utilization, semiconductor material damage, limited application fields, etc., to achieve significant temperature gradient, heat loss reduction, large The effect of heat transfer efficiency

Active Publication Date: 2016-09-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The temperature of this structure rises quickly, but it has a maximum temperature threshold. If the temperature is too high, it will cause damage to the semiconductor material, so its application fields are limited.
[0004] At present, various common temperature difference structures rarely take into account the improvement of the utilization rate of heat sources, and the resulting energy waste is immeasurable

Method used

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  • A double-layer multi-surface gradient temperature difference heat transfer structure
  • A double-layer multi-surface gradient temperature difference heat transfer structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The outer box is made of cylindrical pine wood. The bottom surface of the cavity of the outer box has a radius of 46mm and a depth of 190mm. The side length of the solid hexagonal prism bottom is 56mm and the height is 200mm;

[0027] Asbestos cloth is selected as the material of the heat insulation layer, and a heat insulation layer with a thickness of 45mm is evenly laid on the bottom of the cavity of the outer box;

[0028] The aluminum ingot is cast into a regular hexagonal prism with a bottom side length of 46mm and a height of 95mm, which is the internal heat source container;

[0029] Set the inner heat source container and the outer box together in the form of edge-to-face, and make the bottom surface of the inner heat source container closely contact with the heat insulation layer;

[0030] Two heat dissipation fins are pasted on each outer surface of the outer box body. The base plate size of the fins is 40mm×40mm, the height of the fins is 20mm, the thickness...

Embodiment 2

[0032] This example is the same as Example 1 except for the following points.

[0033] The cylindrical elm is made into an external box body, the bottom surface radius of the hollow cylinder of the external box body is 46mm, the depth is 190mm, the side length of the bottom surface of the solid hexagonal prism is 56mm, and the height is 200mm;

[0034] Stainless steel is cast into a regular hexagonal prism with a bottom side length of 46mm and a height of 95mm, which is the internal heat source container.

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Abstract

The invention discloses a two-layer polyhedral gradient temperature difference heat transfer structure. An internal heat source container and an external box body are sheathed together to form a two-layer structure in an edge-to-face way. The internal heat source container is in a regular hexagonal prism shape and is made of metal; the external box body is of a hollow structure; the cavity of the external box body is cylindrical; the solid of the external box body is in the regular hexagonal prism shape; the external box body is made of a material with a low heat conductivity coefficient; a heat insulating layer is paved at the bottom part of the cavity so as to realize the efficient utilization of heat energy; each outer side face of the external box body is provided with cooling fins, and an inner layer and an outer layer are respectively formed by polyhedral side faces, and therefore, the effective temperature difference area is increased. The two-layer polyhedral gradient temperature difference heat transfer structure disclosed by the invention has the characteristics of high heat source utilization rate, remarkable temperature gradient, large effective temperature difference area, high heat transfer efficiency and the like, and can be used for the field of temperature difference heat transfer.

Description

technical field [0001] The invention relates to temperature difference heat transfer technology, in particular to a double-layer multi-surface gradient temperature difference heat transfer structure, which belongs to the field of heat transfer structures. Background technique [0002] The use of temperature difference to generate electricity will become a new direction of energy development and utilization in the future. The cold end of temperature difference generally chooses the external environment, so the utilization rate of heat source directly determines the economic benefit of thermoelectricity, and the research of temperature difference heat transfer structure has been widely valued. Among the commonly used temperature difference heat transfer structures, parallelepiped structures and single-layer multi-facet structures are often used. The temperature distribution of the parallelepiped structure is very uneven, and most of the heat is dissipated on the edges and corn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F7/00
Inventor 汤晓斌张景丰徐翌伟周勇
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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