Medium-temperature and high-temperature solar heat collector tube exhaust method and device

A technology of solar heat collecting tubes and exhaust devices, which is applied in the direction of solar thermal devices, solar thermal power generation, heating devices, etc., can solve the problem that the vacuum life and product quality cannot be further improved, the vacuum degree of medium and high temperature solar heat collecting tubes cannot be improved, and the vacuum degree cannot be fully Exhaust gas and other problems to achieve the effect of shortening the cooling time, exhausting thoroughly, and quickly exhausting

Inactive Publication Date: 2012-06-20
山东亿家能太阳能有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The method of directly putting the medium-high temperature solar heat collector tube into the oven to heat the exhaust is currently unable to fully remove the gas in the metal inner tube of the medium-high temperature solar heat collector tube due to temperature limitations, and cannot increase the vacuum degree of the medium-high temperature solar heat collector tube. Vacuum life and product quality cannot be further improved

Method used

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  • Medium-temperature and high-temperature solar heat collector tube exhaust method and device
  • Medium-temperature and high-temperature solar heat collector tube exhaust method and device
  • Medium-temperature and high-temperature solar heat collector tube exhaust method and device

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Embodiment 1

[0040] like figure 1 , 3 , 4, the connecting conductive tooling 3 is horizontally fixed on the bracket 2, the connecting conductive tooling 3 is a semi-cylindrical body, and the outer radius is equal to the inner radius of the metal inner tube 11 (such as image 3 , 4 shown), the surface is flat without pits, made of stainless steel, which is the same material as the metal inner tube 11; the main body of the bracket 2 is made of stainless steel, and the insulating part is ceramic to ensure the rigidity and insulation of the bracket 2; On the bracket 2, the connecting conductive tooling 3 is fixed in close contact with the inner wall of the metal inner tube 11, and the position is adjusted to ensure that the tail pipe 13 is vertically downward; the wire 10 is embedded in the connecting conductive tooling 3 and fixed with bolts, and the wire 10 is made of copper tape Or copper rods, plug both ends of the medium-high temperature solar collector tube 1 with asbestos plugs 4, wra...

Embodiment 2

[0042] like figure 2 , 5 As shown, the thermal insulation tooling 5 is fixed on the bracket 2. The thermal insulation tooling 5 is made of a high temperature resistant mica board and filled with 10mm thick thermal insulation cotton. The main material of the bracket 2 is stainless steel, and the contact between the bracket 2 and the glass outer tube 12 is wrapped with asbestos tape wrapping; install the medium and high temperature solar collector tube on the bracket 2, adjust the position to ensure that the tail pipe 13 is vertically downward; plug the two ends of the medium and high temperature solar collector tube 1 with asbestos plugs 4, and use the thermal insulation tool 5 to cover the medium and high temperature solar collector The collector tube 1 is wrapped; one side of the connecting conductive tooling 3 is in close contact with the outer wall of the metal inner tube 11, and the other side is connected to the wire 10, and the connecting conductive tooling 3 is two sem...

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Abstract

The invention relates to an exhaust method and an exhaust device for a medium-temperature and high-temperature solar heat collector tube. The exhaust method is characterized in that voltage is directly applied to the two ends of a metallic inner tube of the medium-temperature and high-temperature solar heat collector tube to form high current, and heat is generated by using resistance value of the metallic inner tube to heat the medium-temperature and high-temperature solar heat collector tube, so as to achieve the goal of high-temperature exhaust. The exhaust device comprises a support, a connecting conductive tool, an asbestos plug, a heat preserving tool, a control system, a vacuum unit, a corrugated tube, a temperature measuring instrument and a conducting wire. The exhaust method overcomes the limitation that the high-temperature exhaust of metal cannot be realized because glass cannot bear high temperature by adopting the overall heating and exhaust method of the existing medium-temperature and high-temperature solar heat collector tube in a drying oven. The exhaust method and the exhaust device have the advantages of quickness, safety and energy saving during exhaust, simple equipment and the like. Especially, the exhaust of the metal part of the medium-temperature and high-temperature solar heat collector tube is more thorough, the vacuum life of the medium-temperatureand high-temperature solar heat collector tube is increased, the cooling time during exhaust is shortened and the production efficiency is improved.

Description

technical field [0001] The present invention relates to the field of solar thermal utilization, and more particularly, to a method and device for exhausting medium and high temperature solar collector tubes. Background technique [0002] Solar energy is the most important basic energy among all kinds of renewable energy. It has the advantages of rich resources, inexhaustible, inexhaustible, not polluting the environment and destroying the ecological balance. Therefore, with the reduction of fossil fuels year by year and the increasingly severe international energy situation, the development and utilization of solar energy is one of the important ways to realize energy supply diversification and ensure energy security. The concentrator type medium and high temperature solar collector tube can be used in industrial heating and power generation. It is an important development direction of the future solar thermal industry. Its performance is directly related to the future devel...

Claims

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Application Information

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IPC IPC(8): F24J2/46
CPCY02E10/40
Inventor 李建斌李强雷东强王智建
Owner 山东亿家能太阳能有限公司
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