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Wavy stacked microchannel cooler

A technology of micro-channels and refrigerators, which is applied in refrigerators, refrigeration and liquefaction, lighting and heating equipment, etc., can solve the problems of limited temperature drop of refrigerators and cannot meet the needs of deep and low temperatures, and achieve enhanced circumvention and increased travel , The effect of simplifying the structure of the test piece

Active Publication Date: 2021-08-24
UNIV OF SHANGHAI FOR SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature drop of multi-layer multi-channel micro-channel throttling refrigerators at this stage is limited, which cannot meet the needs of deep low temperature

Method used

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Experimental program
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Effect test

Embodiment

[0029] The two-stage wave-shaped laminated micro-channel refrigerator provided by the present invention is composed of a plurality of high-pressure and low-pressure channel plates arranged in a staggered arrangement, and connected by an atomic diffusion fusion welding process. On the outermost layer of the plate, two upper and lower cover plates with a certain thickness are arranged to support and stabilize the entire test piece. Among them, the high and low pressure plates both contain two-stage channel structures and pre-cooling parts separated from each other.

[0030] Such as figure 1 , 2 As shown, the two-stage wave-shaped laminated microchannel refrigerator includes an upper cover plate 30 stacked in sequence, a plurality of high-pressure channel plates 50 and a plurality of low-pressure channel plates 60 stacked up and down staggeredly, a lower cover plate 40 and an air intake pipe 10 , outlet pipe 20.

[0031] The upper cover plate 30 is respectively provided with t...

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Abstract

The wave-shaped laminated micro-channel refrigerator according to the present invention includes an upper cover plate, a plurality of upper and lower heat recovery throttling components, and a lower cover plate that are stacked in sequence, and the heat recovery throttling component includes upper and lower stacked high-pressure channels. plate and low-pressure channel plate. The high-pressure channel plate includes a high-pressure inlet and outlet section, a high-pressure heat exchange section and a high-pressure evaporation chamber arranged in sequence, and the high-pressure heat exchange section includes a first channel section, a high-pressure precooling section, and a second-stage channel section arranged in sequence. The first flow channel and the second flow channel are respectively two concave and connected zigzag zigzag line grooves, the indented depth of the zigzag zigzag line groove is less than the thickness of the high-pressure channel plate, and the two end points of the zigzag line groove are along the first channel section. The first and second flow passages are arranged in parallel and staggered in the width direction of the first passage section. One end of the third flow passage is connected to the high-pressure pre-cooling section, and the other end is connected to the high-pressure evaporation chamber.

Description

technical field [0001] The invention belongs to the field of throttling refrigeration, in particular to a wave-type micro-channel throttling refrigerator with a precooling device. Background technique [0002] With the miniaturization of electronic products, rapid cooling technology in a small space has attracted extensive attention from scholars at home and abroad. As a kind of cryogenic refrigerator, the miniature J-T effect throttling refrigerator is characterized by small size, short cooling time, and especially no moving parts. At present, the main J-T effect refrigerators are mostly Hampson type (spiral finned tube type). 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 and enters the capillary throttling of the tube head. . The throttled low-pressure gas flows back and skims the outer fins of the stainless steel tube to pre-cool the incoming high-pressure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B9/02
CPCF25B9/02
Inventor 佘海龙崔晓钰
Owner UNIV OF SHANGHAI FOR SCI & TECH
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