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Cylindrical group printed circuit board microchannel refrigeration device

A technology for printed circuit boards and refrigeration devices, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of small air intake, low heat transfer efficiency, and restrictions on the application and development of J-T effect refrigerators, and achieve compactness Improve the degree, ensure reliability, and weaken the effect of axial heat conduction

Inactive Publication Date: 2017-10-13
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In summary, the existing J-T effect refrigerator has a small air intake and low heat transfer efficiency, which restricts the application and development of the J-T effect refrigerator

Method used

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  • Cylindrical group printed circuit board microchannel refrigeration device
  • Cylindrical group printed circuit board microchannel refrigeration device
  • Cylindrical group printed circuit board microchannel refrigeration device

Examples

Experimental program
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Embodiment Construction

[0026] The specific implementation manners of the present invention will be described below in conjunction with the accompanying drawings.

[0027] figure 1 It is a schematic diagram of the appearance structure of the column group printed circuit board type micro-channel refrigeration device of this embodiment. Such as figure 1 As shown, the cylindrical group printed circuit board microchannel refrigerator 10 includes a cover plate 11 , a bottom plate 12 , a mass-inlet unit 13 and a mass-out unit 14 . The cover plate 11 and the base plate 12 respectively cover the upper end and the lower end of the micro-channel refrigeration device 10, and the mass-incoming unit 13 and the mass-exiting unit 14 are all vertically arranged on the left side of the micro-channel refrigeration device 10, and are connected with the base plate 12 and the cover plate 11 respectively. They are connected to each other for refrigerant to enter and exit the micro-channel refrigeration device 10 .

[0...

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Abstract

The invention provides a refrigerating device for cylinder clustered printed circuit board type micro-channels, comprising a medium feeding unit, a high-pressure micro-channel unit used for guiding a high-pressure gas refrigerating medium to flow, a throttling unit used for throttling the high-pressure gas refrigerating medium flowing through the high-pressure micro-channel unit, an evaporating unit used for enabling a low-temperature low-pressure gas refrigerating medium to absorb heat of external environment, and a low-pressure micro-channel unit arranged above the high-pressure micro-channel unit and used for guiding the low-temperature low-pressure gas refrigerating medium after heat exchanger to flow, and a medium discharge unit. Runners of the high-pressure micro-channel unit and the low-pressure micro-channel unit are all in cylinder clustered form, so that a medium can generate certain disturbance in flowing, thus enhancing heat transfer coefficients between a sheet bar and the medium and weakening the axial heat conduction of a refrigerator.

Description

technical field [0001] The invention belongs to the field of throttling refrigeration, and in particular relates to a column group printed circuit board type micro-channel refrigeration device composed of printed circuit boards. Background technique [0002] Miniature throttling refrigerators use the Joule-Thomson effect (J-T effect) for refrigeration, and are widely used in occasions with small size and space, such as inner cavity cryotherapy, infrared night vision devices, etc. At present, the main J-T effect refrigerator still adopts the Hampson type (spiral finned tube type), that is, the stainless steel tube with an outer diameter of 0.5mm-1mm is wound around the mandrel, and the high-pressure gas flows through the entire stainless steel tube into the capillary section of the tube head. The throttled low-pressure gas returns to pass through the outer fins of the stainless steel tube to pre-cool the incoming high-pressure gas. However, the Hampson-type throttling refrig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B9/02
CPCF25B9/02F25B2309/02F25B2400/15F25B2500/09
Inventor 崔晓钰王文卿
Owner UNIV OF SHANGHAI FOR SCI & TECH
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