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Heat pipe

A heat pipe and pipe wall technology, applied in the field of full-angle coreless heat pipes, can solve problems such as affecting heat transfer performance such as heat pipe start-up speed, damage to hot water system components, and increasing safety hazards, etc., to achieve good frost resistance and production costs. Low, wide range of effects

Inactive Publication Date: 2012-12-26
BEIJING SOLAR ENERGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the perfusion amount of the heat pipe of the solar water heating system accounts for too much of the total volume of the heat pipe, it will affect the heat transfer performance such as the start-up speed of the heat pipe. When the heat energy of the hot water is released in time, it will cause high-pressure overheating, which will not only accelerate and cause damage to the components of the hot water system, but also increase potential safety hazards.
Such problems will be particularly prominent in closed pressurized solar water heating systems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] like figure 1 As shown, the heat pipe of this embodiment is composed of an evaporation section 1, a heat insulation section 2, a condensation section 3, and a phase-changeable working medium poured into the pipe. The diameters of the evaporation section 1 and the heat insulation section 2 are the same, and the condensation section 3 There is a liquid storage tank 4 protruding from the pipe wall of the evaporation section 1 and the heat insulation section 2, and the liquid storage tank 4 is used for storing liquid medium.

[0027] In this embodiment, the diameter of the condensing section 3 is larger than the diameter of the evaporating section 1 and the heat insulating section 2, so that the part of the condensing section 3 protruding from the tube wall of the evaporating section 1 and the heat insulating section 2 forms a liquid storage tank 4, The liquid storage tank 4 is a part of the overall shape of the condensation section 3 .

[0028] Preferably, the tube wall o...

Embodiment 2

[0030] In the heat pipe of this embodiment, the partial radial size of the condensation section 3 is larger than the diameters of the evaporation section 1 and the heat insulation section 2, that is, as figure 2 As shown in , the condensing section 3 has a protruding part from the pipe wall of the evaporating section 1 and the heat insulating section 2, the diameter of the non-protruding part of the condensing section 3 is equal to the diameter of the evaporating section 1 and the heat insulating section 2, and the condensing section 3 The part protruding from the tube walls of the evaporation section 1 and the heat insulation section 2 forms a liquid storage tank 4 . The "local" can be a place (such as figure 2 Shown) or multiple places to form one or more liquid storage tanks 4.

Embodiment 3

[0032] like image 3 As shown, in this embodiment, the axis of the condensation section 3 is not on a straight line with the axis of the evaporation section 1 and the heat insulation section 2 (the diameters of the condensation section 3 and the evaporation section 1 and the heat insulation section 2 can be the same or different) , In this way, the condensing section 3 has a part protruding from the pipe wall of the evaporating section 1 and the heat insulating section 2, and the protruding part forms a liquid storage tank 4 .

[0033] As can be seen from the description of Embodiments 1-3 above, the evaporation section 1, heat insulation section 2 and condensation section 3 of the heat pipe of the present invention can work at an angle of 0 to 90° with the ground plane. like Figure 4 As shown, when working at 0° or a small angle (such as 0-5°), the part of the condensation section 3 can be lower than the evaporation section 1 and the heat insulation section 2, and at this t...

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Abstract

The invention discloses a heat pipe and relates to the technical field of solar heat collector elements. The heat pipe comprises a steaming section, a heat insulation section, a condensing section and a working medium which is filled into the pipe and is capable of generating phase change, wherein the steaming section and the heat insulation section are identical in diameter; a liquid storing tank which protrudes out relative to the pipe walls of the steaming section and the heat insulation section is formed on the condensing section; and the liquid storing tank is used for storing liquid medium. The heat pipe provided by the invention has the characteristics that the range of an inclined angle for installation and use is wide, no pipe core is needed, the manufacturing is simple, the heat transmission performance is good, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of solar collector elements, in particular to an all-angle coreless heat pipe. Background technique [0002] A heat pipe refers to a high-efficiency heat exchange element that is filled with a working medium (working fluid) in a closed tube shell and uses the phase change of the medium to absorb and release heat for heat exchange. A typical heat pipe, especially a horizontal heat pipe, is composed of a tube shell, a tube core and a working medium. One end of the tube is an evaporating section (heating section), and the other end is a condensing section (cooling section). The heat insulation section (insulation section) can be arranged, and the tube core is set to make the condensate return to the evaporation section smoothly. A gravity heat pipe is a type of heat pipe. At present, the heat pipes in heat pipe solar collectors at home and abroad mostly use gravity heat pipes. The characteristic of gravity he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D15/02F24J2/32F24S10/95
CPCY02E10/44
Inventor 李金彪薛英霞胡金良石中坤
Owner BEIJING SOLAR ENERGY INST