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Heat flow heater with wall insulating property

A thermal insulation performance, heater technology, applied in the direction of ohmic resistance heating, heating or cooling equipment, electric heating devices, etc., can solve the problems of excessive volume, small heat leakage performance, poor heat insulation, etc., and achieve small weight and volume Effect

Active Publication Date: 2009-08-26
江苏中国科学院能源动力研究中心 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in scientific experiments, high-heat flux heaters often have many shortcomings such as poor heat insulation, excessive volume, and limited high-heat-flux heating. High heat flow is one of the key technologies for the development of high-power lasers

Method used

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  • Heat flow heater with wall insulating property
  • Heat flow heater with wall insulating property
  • Heat flow heater with wall insulating property

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The high heat flux heater of the present invention adopts the long heat conduction path mode of bolts at different positions. In order to illustrate the effect of the present invention, it is now compared with a known straight-through bolt at the same position to further illustrate the inventiveness of the present invention. Figure 4 a is a straight-through bolt or metal column of known technology, Figure 4 b is the long heat conduction path of bolts or metal columns at different positions in the present invention. In both cases, heat leakage from the core heat source temperature T through three ways 芯 to ambient temperature T 环 , when the core temperature and ambient temperature are the same, the amount of heat leakage depends on T 4 the size of. The analysis of the three heat leakage mechanisms is as follows:

[0032] 1) Heat conduction: According to Fourier's law, Figure 4 heat leakage of a structure Figure 4 Heat leakage of b structure

[0033] In th...

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Abstract

The invention relates to a heat flow heater with wall insulating property, which structurally comprises a heater shell and a copper core, wherein the interior of the heater shell has a multilayer box body structure made of metal, the box body layers are fixedly connected by metal columns or bolts to form a support framework and a conductive path for leaking heat among the box body layers, and the positions of the adjacent double box body layers fixed by the metal columns or the bolts are different; the adjacent box body layers are provided with gaps; each box body layer is provided with a separate insulating cover; the copper core is in shape of a plurality of grids and is fixed in the center of the heater shell; the exposed part of the copper core is a heating surface; a heating plate is arranged in each grid of the copper core, and the left side and the right side of the heating plates are wound with electric heating wires; and small porcelain tubes are sleeved outside the electric heating wires so as to achieve electric insulation under high temperature. A space for arranging heating elements is compact, and more heat exchange surfaces can be arranged in the efficient space, so heat leakage is reduced to minimum so as to achieve the electric insulation of the heating elements under high temperature and achieve high-power heating so that the heating surfaces can reach high heat flow density.

Description

technical field [0001] The invention relates to a heater, in particular to a heat flow heater with wall insulation performance. Background technique [0002] Many occasions in scientific experiments require high heat flux heaters with high heat flux density on the unit surface, adjustable heat flux density, and miniaturization. For example, high-power lasers are an important direction for the country to develop high-tech, and lasers emit high power in a small space. Spray cooling is an important thermal management method for lasers in the future. How to realize miniaturization and well-integrated heaters with spray chambers is a difficult problem in scientific research and production. At present, in scientific experiments, high-heat flux heaters often have many shortcomings such as poor heat insulation, excessive volume, and limited high-heat-flux heating. High heat flux is one of the key technologies for the development of high-power lasers. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): B01L7/00H05B3/32
Inventor 曲伟
Owner 江苏中国科学院能源动力研究中心
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