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Heated part for multi-angle detection of boiling heat transfer, and experimental device and experimental method thereof

A technology of boiling heat exchange and experimental device, applied in the field of phase change heat, can solve the problems of inability to detect the experimental performance of the modified surface with different placement angles, and achieve the effects of ensuring sealing, convenient operation and cost saving.

Active Publication Date: 2021-05-14
ANHUI UNIVERSITY OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned technical problems existing in the prior art, the present invention provides a multi-angle detection heating element for boiling heat transfer, an experimental device and an experimental method thereof, which solves the problem that the prior art can only test the upward boiling performance of the horizontal surface but cannot Technical Issues in Testing Performance of Experiments with Different Placement Angles of Modified Surfaces

Method used

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  • Heated part for multi-angle detection of boiling heat transfer, and experimental device and experimental method thereof
  • Heated part for multi-angle detection of boiling heat transfer, and experimental device and experimental method thereof
  • Heated part for multi-angle detection of boiling heat transfer, and experimental device and experimental method thereof

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Embodiment 1

[0056] figure 1 A structural schematic diagram of a heating element for multi-angle detection of boiling heat exchange proposed by the present invention is shown. For the convenience of description, the "up", "down", "left" and "right" referred to below are consistent with the up, down, left and right directions of the drawings themselves, but do not limit the structure of the present invention.

[0057] Such asfigure 1 As shown, a heating element for multi-angle detection of boiling heat transfer includes a modified surface part 230 to be tested and a heated column 200 to be tested. The modified surface part 230 to be tested is arranged on the top of the heated column 200 to be tested, and The modified surface part 230 is installed on the heated column 200 to be tested at a variable angle.

[0058] In the embodiment of the present invention, by installing the modified surface part 230 to be measured on the heated part in a variable angle manner, the modified surface part 230...

Embodiment 2

[0063] Such as Figure 2-Figure 5 As shown, the present invention also provides a multi-angle detection boiling heat transfer experimental device, including the heating element, the boiling pool and the heating system 500 for the column to be tested in the above technical solution. Wherein, the boiling pool has a boiling chamber for accommodating liquid working medium and providing a closed space; the heating system 500 for the column to be tested is used for heating the heated column 200 to be tested. The heating system 500 for the column to be tested includes a heating rod 510, a multimeter 530 and an adjustable output power supply 520. Adjust the knob 521 on the output adjustable power supply 520 to change the output power of the output adjustable power supply 520 .

[0064] Such as figure 2 and image 3 As shown, the boiling pool is provided with a tank structure that matches the heated column 200 to be tested. When the heated column 200 to be tested is installed, the ...

Embodiment 3

[0074] In large vessel pool boiling, the surface physical properties and roughness of the heating surface and the vaporization core are the main factors affecting the boiling process. Different rough surfaces have different vaporization core numbers, and the vaporization core affects the growth time and detachment of bubbles. frequency. Through the split design of this embodiment, it is possible to study the bubble growth process of different modified surfaces under different working conditions at different angles, collect multiple experimental data, and provide a basis for further theoretical research.

[0075] The embodiment of the present invention also provides an experimental method for multi-angle detection of boiling heat transfer, using the experimental device for multi-angle detection of boiling heat transfer in any of the above technical solutions to conduct experiments, specifically including the following steps:

[0076] S1: before the experiment, the part of the h...

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Abstract

The invention relates to the field of phase-change heat exchange, and concretely relates to a heated part for multi-angle detection of boiling heat exchange, and an experimental device and an experimental method thereof. The heated part for multi-angle detection of boiling heat transfer comprises a to-be-detected modified surface part and a to-be-detected heated column, the to-be-detected modified surface part is arranged at the top of the to-be-detected heated column, and the to-be-detected modified surface part is mounted on the to-be-detected heated column at a variable angle. According to the heated part for multi-angle detection of boiling heat exchange, and the experimental device and the experimental method thereof, the to-be-detected modified surface part can be fixed in a multi-angle manner relative to the heated part, namely the to-be-detected heated column, so that the angle of a boiling surface is changed, and the technical problem that only upward boiling performance of a horizontal surface can be tested and experimental performance of different placement angles of a modified surface cannot be detected in the prior art is solved.

Description

technical field [0001] The invention relates to the field of phase change heat, in particular to a heating element for multi-angle detection of boiling heat transfer, an experimental device and an experimental method thereof. Background technique [0002] At present, as the volume of cutting-edge equipment is getting smaller and smaller, and its power consumption is getting higher and higher, the heat dissipation problem has become a major threat to the service life of the equipment. There have been a large number of theoretical studies, experiments and even applications, which have proved that surface modification has a significant effect on heat dissipation and heat conduction, especially in the field of boiling phase transition, which can change the superheat range of the nucleate boiling region, the overall surface heat transfer coefficient and the critical temperature. heat flux. At present, there is no uniform and standardized test method at home and abroad, and no en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20
CPCG01N25/20Y02E30/30
Inventor 楚化强许年杨杰蒋瀚涛
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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