Sterling-pulse tube mixed cold finger adopting column spring phase modulation

A vascular, phasing technique applied to Stirling-vascular hybrid cold fingers. In the field of refrigeration, it can solve the problems of low theoretical efficiency of the refrigerator, inability to recover hot-end expansion work, and limited phase modulation ability, so as to achieve the effect of realizing effective work recovery, improving efficiency, and reducing cold-end vibration output

Active Publication Date: 2017-12-01
CHINA ELECTRONICS TECH GROUP CORP NO 16 INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] To sum up, the improvement of current pulse tube refrigerator phasing method is mainly based on the gas phasing method. The phasing ability is limited and the expansion work of the hot end cannot be recovered, resulting in low theoretical efficiency of the refrigerator.

Method used

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  • Sterling-pulse tube mixed cold finger adopting column spring phase modulation

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing:

[0024] like figure 1 A Stirling-vessel hybrid cold finger using column spring phase modulation as shown includes an expansion cylinder and a vessel housing 6 embedded in the expansion cylinder and arranged coaxially with the expansion cylinder. Described expansion cylinder comprises expansion cylinder body 5, is installed in the hot end air distribution seat 3 of expansion cylinder body 5 hot end cavity openings, is installed in the cold cap 8 of expansion cylinder body 5 cold end cavity openings and is installed in expansion cylinder body 5. A connecting pipe 10 and a transition pipe 9 communicating with the hot end cavity on the cylinder block 5 . A mechanical phase adjustment device arranged coaxially with the vessel housing 6 is embedded in the gas distribution seat 3 at the hot end. The mechanical phase adjustment device includes a spring fixing seat 1 arranged at th...

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Abstract

The invention relates to a sterling-pulse tube mixed cold finger adopting column spring phase modulation, which comprises an expansion gas cylinder and a pulse tube shell. The expansion gas cylinder comprises an expansion gas cylinder body, a hot side gas distribution seat, a cold cap, and a connecting pipe and a transition pipe arranged on the expansion gas cylinder body and communicating with a hot side cavity. A mechanical phase modulation device coaxial to the pulse tube shell is embedded into the hot side gas distribution seat, and comprises a spring fixing seat arranged at the outer end part of the hot side gas distribution seat, a hot side spring seat arranged at the inner end part of the hot side gas distribution seat and in clearance fit to the hot side gas distribution seat, and a cylindrical spring connected between the spring fixing seat and the hot side spring seat. According to the sterling-pulse tube mixed cold finger adopting column spring phase modulation provided by the invention, the mechanical phase modulation device is adopted to replace a traditional hole-gas reservoir, an inertia tube-gas reservoir and other gas phase modulation ways in a pulse tube cooler, the phase modulation of the cooler can be realized through adjusting spring parameters, effective work recovery is realized, and the efficiency of the cooler can be effectively improved in terms of theory and practical application.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to a Stirling-pulse tube hybrid cold finger adopting column spring phase modulation. Background technique [0002] Pulse tube refrigerators and Stirling refrigerators are currently the most widely used small mechanical cryogenic refrigerators. The basic working principle is basically the same, that is, the cooling effect is realized through the alternating flow and heat exchange of the working medium gas in the heat recovery unit. The phase difference between the pressure wave and the mass flow of the working medium gas in the pulse tube refrigerator and the Stirling refrigerator has a great influence on the performance of the refrigerator, and a suitable phase adjustment mechanism is of great significance for the performance improvement and practical application of the refrigerator . The improvement of the phase modulation mechanism is one of the key research tasks of cry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B9/14
CPCF25B9/14F25B9/145F25B2500/01F25B2500/12F25B2500/17F25B2500/13
Inventor 尹传林高瑶闫浩王飞范仙红朱魁章
Owner CHINA ELECTRONICS TECH GROUP CORP NO 16 INST
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