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Convection heat switch

A convective heat and switch technology, applied in the field of refrigeration and low temperature, can solve the problems of limited application occasions, insufficient convective heat transfer effect, low switch, etc., and achieve the effect of simple structure, easy processing, and enhanced reflux disturbance

Pending Publication Date: 2021-08-20
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this form of convective heat switch basically meets the experimental requirements, the convective heat transfer effect is not good enough, the switch is relatively low, and the application occasions are limited.

Method used

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  • Convection heat switch
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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0028] It should also be...

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Abstract

The invention is applicable to the field of refrigeration and low temperature, and discloses a convection heat switch which comprises a first heat conductor, a second heat conductor, a first connecting pipe and a second connecting pipe, and is characterized in that the first heat conductor is provided with a first arc-shaped inner cavity, the second heat conductor is provided with a second arc-shaped inner cavity and an inflation inlet communicated with the second arc-shaped inner cavity, the inflation inlet is used for being externally connected with an inflation system, the first connecting pipe and the second connecting pipe are both used for connecting the first heat conductor and the second heat conductor, the first arc-shaped inner cavity and the second arc-shaped inner cavity are communicated through the first connecting pipe and the second connecting pipe, the first connecting pipe and the second connecting pipe are arranged at an interval, and the first arc-shaped inner cavity, the second arc-shaped inner cavity, the first connecting pipe and the second connecting pipe form a convection channel. The convection heat switch adopts an arc-shaped flow path space, the convection heat exchange intensity in the convection heat switch is enhanced, the heat conductivity of the conduction state of the convection heat switch is doubled, and the switch ratio is correspondingly doubled.

Description

technical field [0001] The invention relates to the technical field of refrigeration and low temperature, in particular to a convection heat switch. Background technique [0002] In the development of cutting-edge fields such as space exploration and quantum technology, cryogenic refrigeration technology plays an irreplaceable role. Among them, the thermal switch, as a key component in the cryogenic refrigeration system, has been extensively studied. [0003] Thermal switch, as the name suggests, is a switch that controls heat conduction or disconnection. It can be divided into two categories according to function: one type participates in the control of refrigeration cycle, such as the air gap convection heat switch used in adiabatic demagnetization refrigerators, as magnetocaloric materials When the excitation releases heat, the thermal switch is turned on to transfer heat to the heat sink; when the magnetocaloric material is demagnetized for cooling, the thermal switch i...

Claims

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Application Information

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IPC IPC(8): F25D29/00
CPCF25D29/005
Inventor 禹芳秋邹爱红戴巍沈俊李珂王昌
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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