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A controllable tube-type pulsating heat pipe heat transfer system with an external oscillating source

A technology of pulsating heat pipe and heat transfer system, which is applied in the field of controllable tube pulsating heat pipe heat transfer system, can solve problems such as unstable operation and difficult startup, and achieve the effects of convenient manufacture, enhanced heat transfer performance, and simple use

Active Publication Date: 2022-04-01
DALIAN MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the limitation of the pulsating flow in the tube, the pulsating heat pipe works unstable under low power conditions and has difficulty in starting, thus limiting the application of the pulsating heat pipe in the low power input state

Method used

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  • A controllable tube-type pulsating heat pipe heat transfer system with an external oscillating source
  • A controllable tube-type pulsating heat pipe heat transfer system with an external oscillating source
  • A controllable tube-type pulsating heat pipe heat transfer system with an external oscillating source

Examples

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Effect test

Embodiment 1

[0027] Such as figure 1 and figure 2 Shown is a controllable tubular pulsating heat pipe heat transfer system with an external oscillation source disclosed in the present invention, which includes a tubular pulsating heat pipe 1 filled with working fluid. The tubular pulsating heat pipe 1 includes a condensation zone I10 and an adiabatic zone II11 And the evaporation zone III12 also includes an external oscillating source for adjusting the pulsation frequency and amplitude of the working fluid inside the tubular pulsating heat pipe.

[0028] Specifically, the tubular pulsating heat pipe 1 is manufactured by bending a capillary tube into a serpentine shape and filling it with a working medium 2 after vacuuming. The working medium in the manufactured pulsating heat pipe is in a state of alternate distribution of vapor plugs and liquid plugs. The pulsating heat pipe is sequentially divided into condensation zone I, adiabatic zone II, and evaporation zone III from top to bottom ...

Embodiment 2

[0038] Such as image 3 and Figure 4Shown is the second embodiment of a controllable tube-type pulsating heat pipe heat transfer system with an external oscillation source disclosed in the present invention. The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the electric field The generating device has multiple groups, and the electrode pairs of the multiple groups of electric field generating devices are arranged at intervals in the tube-type pulsating heat pipe. Similarly, even if there is an electric field arrangement in the entire tube-type pulsating heat pipe, this can make the liquid metal circulate in the tube-type pulsating heat pipe, thereby changing the pulsation frequency and amplitude of the working medium of the pulsating heat pipe.

[0039] In this example, if image 3 and Figure 4 As shown, the electric field generating device has two groups, and the electrode pairs 4 of the two groups of electric field generating devices are a...

Embodiment 3

[0041] The difference between embodiment 3 and embodiment 1 is that, in embodiment 1, the electric field generating device has multiple groups, and the electrode pairs of the electric field generating device in multiple groups are arranged at a certain distance in sequence in the tubular pulsating heat pipe, The polarities of the electric fields generated by multiple sets of electric field generators in the tube-type pulsation heat pipe are the same, that is, the entire tube-type pulsation heat pipe has an electric field arrangement, which can make the liquid metal circulate in the tube-type pulsation heat pipe, and then Change the pulsation frequency and amplitude of the working medium of the pulsating heat pipe.

[0042] In this embodiment, the electric field generating device has one set, and there are multiple sets of electrode pairs in the electric field generating device, and the multiple sets of electrode pairs are arranged at a certain distance in sequence in the tubula...

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Abstract

The invention discloses a controllable tubular pulsating heat pipe heat transfer system with an external oscillating source, which includes a tubular pulsating heat pipe filled with working fluid. The tubular pulsating heat pipe includes a condensation zone I, an adiabatic zone II and an evaporation zone III. It also includes an external oscillating source for adjusting the pulsation frequency and amplitude of the internal working medium of the tube-type pulsation heat pipe. The tubular pulsating heat pipe heat transfer system has a simple structure, and can control the pulsation frequency and amplitude of the working fluid inside the tubular pulsating heat pipe, so that the heat transfer performance of the tubular pulsating heat pipe can be controlled and enhanced, and the heat transfer performance of the tubular pulsating heat pipe can be reduced. Start-up power, realize the advantages of start-up control of tube-type pulsating heat pipes, etc.

Description

technical field [0001] The invention relates to the technical field of pulsating heat pipes, in particular to a controllable tube-type pulsating heat pipe heat transfer system with an external oscillation source. Background technique [0002] Tubular pulsating heat pipe is a two-phase flow passive heat transfer element, which is manufactured by bending a capillary into a serpentine shape. It is mainly composed of three parts: an evaporation zone, an adiabatic zone and a condensation zone. Its working principle is to evacuate the tube-type pulsating heat pipe, and then fill it with a certain amount of working fluid according to the requirements and then seal it. Since the inner diameter of the pulsating heat pipe is small, under the action of surface tension, the working fluid forms a liquid plug and The state in which the vapor plugs are alternately distributed randomly. The working medium is heated and expands in the evaporation area to produce bubbles, and then the bubble...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D15/02F28D15/06
CPCF28D15/0233F28D15/06
Inventor 赵楠楠王玉鑫裴芳欣王国有马鸿斌杜恒旭
Owner DALIAN MARITIME UNIVERSITY
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