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Corrugated pipe type self-adjusting J-T refrigerator

A technology of bellows and refrigerators, which is applied in the field of bellows-type self-adjusting J-T refrigerators, can solve the problems of no radial positioning of the transmission rod, easy damage of bellows, easy bending of bellows, etc., and achieve compact structure design and fast start-up time Fast, low thermal mass effect

Inactive Publication Date: 2019-09-24
11TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the structural limitations of the refrigerator, the self-adjusting mechanism of the refrigerator is a cantilever beam structure. The bellows are easy to ben

Method used

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  • Corrugated pipe type self-adjusting J-T refrigerator
  • Corrugated pipe type self-adjusting J-T refrigerator
  • Corrugated pipe type self-adjusting J-T refrigerator

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Embodiment Construction

[0031] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0032] First, the working principle of the bellows type self-adjusting J-T refrigerator is described in detail: the high-pressure gas enters the tailstock of the refrigerator from the air inlet of the pipeline, passes through the heat exchange tube and reaches the orifice, and the volume of the high-pressure gas expands rapidly after passing through the small hole. According to the principle of the Joule-Thomson effect, the temperat...

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Abstract

The invention discloses a corrugated pipe type self-adjusting J-T refrigerator. The refrigerator comprises a tail base, a heat exchanger and a central pipe; the tail base is arranged on the bottom end of the corrugated pipe type self-adjusting J-T refrigerator and used for enabling high-pressure normal-temperature gas to enter the refrigerator and supporting the refrigerator; the heat exchanger is arranged on the outer side of the central pipe and the inner side of a Dewar cold finger and used for discharging low-pressure low-temperature gas flow through rib gaps of the heat exchanger after the high-pressure normal-temperature gas enters the refrigerator and is subjected to cooling and pressure reduction through a throttling hole; the central pipe is arranged on the inner side of the heat exchanger; a gas filling pipe is arranged on the inner rear side of the central pipe, the gas filling pipe is connected with a sealing rib arranged in the middle of the central pipe, and the sealing rib together with a reinforcing ring, a corrugated pipe and a transmission rod which are arranged on the inner front side of the central pipe forms a sealing gas filling cavity; and the top of the transmission rod is connected with a valve needle, a valve body with the throttling hole is arranged behind the valve needle, and the position of the valve needle corresponds to the position of the throttling hole.

Description

technical field [0001] The invention relates to the field of low-temperature refrigeration, in particular to a bellows type self-regulating J-T refrigerator. Background technique [0002] J-T refrigerators have been widely used in infrared systems due to their compact structure, small size, light weight, and quick start-up. According to whether there is a self-adjusting mechanism, J-T refrigerators can be divided into two categories: quick-start type and self-adjusting type. The quick-start type is a direct-injection type refrigerator, which is mostly used for unit infrared detector components. Usually, the start-up time of the refrigeration system is required to be 3S~5S. For the second-generation infrared focal plane detector components based on InSb and HgCdTe, compared with the self-regulating refrigerator, the direct-injection quick-start refrigerator not only cannot reach a lower temperature, but also consumes less time to reach the same temperature. longer. Therefo...

Claims

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Application Information

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IPC IPC(8): F25B9/02
CPCF25B9/02
Inventor 马艳红徐庆松李勉韩蓬磊
Owner 11TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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