Aluminium heat tube and solar heat-collecting tube

A technology of solar heat collecting tubes and aluminum heat pipes, applied in the field of solar heat collecting tubes, can solve the problems of high price of heat collecting tubes, achieve the effect of reducing the cost of heat pipes and solving the effect of non-condensable gas

Inactive Publication Date: 2012-09-05
青岛海之川可再生能源研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the heat pipe type vacuum heat collector has not been widely promoted and applied, which is mainly because the price of this heat collector is relatively expensive.

Method used

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  • Aluminium heat tube and solar heat-collecting tube
  • Aluminium heat tube and solar heat-collecting tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The aluminum heat pipe of this embodiment comprises a shell, which includes a condensation section 1 and an evaporation section 4. The condensation section 4 is provided with a hydrogen permeable window. The hydrogen permeation window includes a hydrogen absorption activation layer 2 and a dehydrogenation activation layer 3. The hydrogen absorption activation layer 1 It is arranged in the inner layer, and the dehydrogenation activation layer 3 is arranged in the outer layer. The hydrogen absorbing active layer 1 is set as a rare earth alloy, and the dehydrogenating active layer 3 is set as a zirconium based alloy. The shell is set as pure aluminum or aluminum alloy. The inner wall of the heat pipe is provided with grooves. The rare earth alloy is Mm1-xCXNi5-yDy, wherein Mn is any one of Ce, Nd, Pr, Sm, Gd, Er; C is any one of Al, Cu, Mn, Si, Ca, Ti, Co, D is any one of Al, Cu, Mn, Si, Ca, Ti, Co, Cr, Zr, V, Fe, where x=0.05~0.20, y=0.1~2.5. The zirconium alloy is any...

Embodiment 2

[0029] The difference between this embodiment and Embodiment 1 is that the hydrogen absorbing active layer 2 is set as a zirconium alloy, and the dehydrogenating active layer 3 is set as a rare earth alloy. When x=0.1 and y=1.25 in this embodiment, the composition of the rare earth alloy for Mm 0.9 C 0.1 Ni 3.75 D. 1.25 . The sum of zirconium series is Zr and Cr with a molar ratio of 1:2.

Embodiment 3

[0031] The difference between this embodiment and Embodiment 1 is that when x=0.2 and y=2.5 are taken in this embodiment, the composition of the rare earth alloy is Mm 0.8 C 0.2 Ni 2.5 D. 2.5 . The sum of zirconium series is Zr and Mn with a molar ratio of 1:2.

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Abstract

The invention relates to the field of solar heat utilization, and particularly relates to an aluminium heat tube and a solar heat-collecting tube provided with the aluminium heat tube. The invention provides the aluminium heat tube and the solar heat collector adopting rare-earth alloys and zirconium alloys as windows and applying the alloys on the aluminium heat tube. The solar heat-collecting tube disclosed by the invention comprises an outer tube and a heat tube, wherein phase-change liquid is filled in the heat tube; the heat tube is set as the aluminium heat tube; the aluminium heat tube comprises a condensing section and an evaporating section; the condensing section of the aluminium heat tube is provided with a hydrogen-permeating window; the hydrogen-permeating window comprises a hydrogen-absorbing activation layer and a dehydrogenating activation layer; the hydrogen-absorbing activation layer is arranged on an inner layer, and the dehydrogenating activation layer is arranged on an outer layer; and the phase-change liquid is set as water or an alcohol easily absorbing the water. According to the heat tube and the solar heat collector, the rare-earth alloys and the zirconium alloys are creatively used as window layer materials and applied to the aluminium heat tube based on adequate analysis for the properties of aluminium and the alloys of the aluminium, thus solving the problem that gas in the aluminium heat tube can not be condensed, and effectively decreasing the cost of the heat tube.

Description

[0001] technical field [0002] The invention relates to the field of solar heat utilization, in particular to an aluminum heat pipe and a solar heat collecting pipe provided with the aluminum heat pipe. Background technique [0003] Heat pipes are ideal for rapid heat transfer and exchange. The heat pipe achieves efficient heat conduction and exchange through phase change, and uses the evaporation and condensation phase change of the working fluid inside the closed cavity to transfer heat. Its heat transfer capacity is dozens or even hundreds of times that of traditional metal materials. The most commonly used heat pipe is the copper-water system. However, the price of copper is relatively expensive, and the use of cheap and lightweight aluminum instead of copper can save costs. However, aluminum is an active metal. Although there is a protective natural oxide layer on the surface of aluminum, aluminum is still easy to generate hydrogen gas at high temperature with common...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D15/02F28F21/08F24J2/46
CPCY02E10/40
Inventor 侯乃升
Owner 青岛海之川可再生能源研究所
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