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Micro-jet cooling plate for adding porous heat transfer surfaces and manufacturing method of micro-jet cooling plate

A heat transfer surface and micro-spray technology, applied in photovoltaic power generation, photovoltaic modules, electrical components, etc., can solve the problems of uniform and uneven temperature distribution of batteries that are difficult to cool instantly, so as to improve battery power generation efficiency and solve uneven distribution Uniform and increase the effect of phase change heat transfer efficiency

Pending Publication Date: 2018-08-17
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional heat exchange and cooling devices are mostly in contact with heat exchange materials and heat source components, using circulating media to take away heat, it is difficult to achieve instant cooling and uniform temperature distribution of the battery
In this context, in view of the problems of high local temperature and uneven distribution of concentrating photovoltaic cells, a new heat dissipation mechanism needs to be proposed, which aims to quickly reduce the temperature of photovoltaic cells and make the heat flux distribution more uniform, thereby improving photovoltaic performance. Battery efficiency, increase battery life

Method used

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  • Micro-jet cooling plate for adding porous heat transfer surfaces and manufacturing method of micro-jet cooling plate
  • Micro-jet cooling plate for adding porous heat transfer surfaces and manufacturing method of micro-jet cooling plate
  • Micro-jet cooling plate for adding porous heat transfer surfaces and manufacturing method of micro-jet cooling plate

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Embodiment 1

[0025] Such as figure 2 Shown, a kind of micro-jet flow cooling plate that adds porous heat transfer surface, the rectangular working surface of described micro-jet flow cooling plate is centrally provided with the porous super-hydrophilic surface structure 14 that is made up of some evenly distributed small holes, and described Two cooling liquid outlet passages are arranged in parallel at the two opposite sides of the working surface, and a cooling liquid collection passage 15 with both ends connected to the cooling liquid outlet passages is arranged in parallel at the other two opposite sides of the working surface. Several fine channels 13 are evenly connected between the hydrophilic surface structure 14 and the cooling liquid outlet channel and the cooling liquid collection channel 15 . The cooling liquid is sprayed onto the cooling plate with a porous structure by the micro-injector, flows through the evenly distributed fine channels 13, and then collects in the cooling...

Embodiment 2

[0032] A method for manufacturing the micro-jet cooling plate, comprising the steps of:

[0033] 1) Machining the cooling liquid outlet channel, the cooling liquid collecting channel 15 and the fine channel 13 on the surface of the smooth metal substrate by a mechanical processing method of plow cutting and extrusion;

[0034] 2) Prepare a porous super-hydrophilic surface structure14 in the middle region of the metal substrate by particle sintering;

[0035] 3) Performing hydrophobic surface treatment on the bottom surface of the micro-channel 13 by chemical deposition method.

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Abstract

The invention discloses a micro-jet cooling plate for adding porous heat transfer surfaces. A porous super-hydrophilic surface structure formed by a plurality of uniformly distributed small holes is arranged in the middle of a rectangular working surface of the micro-jet cooling plate, two cooling liquid outlet channels are parallelly formed in two opposite edges of the working surface, cooling liquid converging channels are parallelly formed in the other two opposite edges of the working surface, two ends of each cooling liquid converging channel is communicated with the corresponding coolingliquid converging channel, and a plurality of mill-and-micro-channels are uniformly formed among the porous super-hydrophilic surface structure, the cooling liquid converging channels and the coolingliquid converging channels. The invention further discloses a manufacturing method of the micro-jet cooling plate for adding the porous heat transfer surfaces. According to the micro-jet cooling plate, heat resistance of a channel surface can be reduced, phase change heat transfer efficiency is increased, and the cooling plate can effectively solve the problem that local temperature of a concentrating photovoltaic cell is excessive, nonuniform in distribution and the like, so that the power generation efficiency of the cell is improved.

Description

technical field [0001] The invention relates to the technical field of concentrating photovoltaic panels cooling, in particular to a micro-jet cooling plate with a porous heat transfer surface and a manufacturing method thereof. technical background [0002] Concentrating solar energy technology is the third generation technology of solar power generation development trend in the future. With the increase of the radiation intensity per unit area of ​​the solar panel, the absorbed heat also increases, and the temperature control and heat dissipation problems of the battery are also more prominent. Traditional heat exchange and cooling devices are mostly made of heat exchange materials in contact with heat source components, and use circulating media to take away heat. It is difficult to achieve instant cooling and uniform battery temperature distribution. In this context, in view of the problems of high local temperature and uneven distribution of concentrating photovoltaic c...

Claims

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Application Information

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IPC IPC(8): H02S40/42
CPCH02S40/425Y02E10/50
Inventor 罗小平章金鑫冯振飞肖健周建阳郭峰李海燕王兆涛王梦圆王文袁伍廖政标
Owner SOUTH CHINA UNIV OF TECH
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