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Phase Modulation Structure of an Integral Pulse Tube Refrigerator

A pulse tube refrigerator, integrated technology, applied in the direction of refrigerators, refrigeration and liquefaction, compressors, etc., can solve the problems of large vibration, air flow fluctuations in gas storage, etc., to achieve the effect of reducing vibration, reducing air flow fluctuations, and reducing connections

Active Publication Date: 2017-11-21
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the built-in layout of the inertial tubes causes large oscillations, which in turn causes fluctuations in the airflow inside the gas storage

Method used

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Embodiment Construction

[0023] In conjunction with the accompanying drawings, the structural principle of the present invention will be further described in detail below.

[0024] For the phase adjustment device of the integrated pulse tube refrigerator according to the present invention, refer to the attached figure 1 , the present invention is an improvement on the conventional pulse tube refrigeration device and system, and the main parts of the present invention that are different from the conventional pulse tube system include:

[0025] The phase modulation mechanism as a whole mainly includes an outer joint 4, a spiral channel 5, a through hole 7 and an inner gas reservoir 6;

[0026] The outer joint of the present invention, the spiral channel, and the inner air store are designed as a whole, and the spiral channel and the inner air store are communicated through the through hole 7, such as image 3 shown. The spiral channel changes the relationship between mass flow and pressure wave due to...

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Abstract

The invention discloses a phase modulation structure of an integral pulse tube refrigerator. The structure adopts a joint phase modulation of a spiral channel and an inner gas storage, and is composed of spiral channels of different sizes and an inner gas storage, and the spiral channel and the inner gas storage are embedded Inside the phase modulation mechanism as a whole. The spiral channel connects the gas outlet at the hot end of the vessel and the inner gas reservoir, and is evenly embedded in the periphery of the whole. The inner gas reservoir is located in the middle of the phase-modulating mechanism. The beneficial effects of the present invention are: taking the phase modulation device as a whole to improve the space utilization rate; reducing welding and flange joints to increase the overall air tightness; the spiral channel and the inner gas reservoir are embedded in the phase modulation mechanism as a whole to reduce the inertia The gas turbulence caused by tube vibration increases the reliability of the refrigerator.

Description

technical field [0001] The invention relates to the field of pulse tube cryogenic refrigeration, in particular to an integrated pulse tube refrigerator phase adjustment device. Background technique [0002] The rapid development of aerospace, space exploration, infrared, atomic energy, superconductivity and other technologies has promoted the continuous development and progress of cryogenic refrigeration technology. As an important branch of cryogenic technology, the pulse tube refrigerator has obvious advantages in the field of cryogenic refrigeration because of its simple structure, low cold head vibration, and high reliability because of its no moving parts at the cold end. The cold end of the pulse tube refrigerator has no moving parts, and the phase relationship between the mass flow and the pressure wave is obtained through the phase modulation mechanism. The inertia tube uses the inertia of the oscillating fluid in the slender tube to adjust the phase difference. It ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B9/14
Inventor 吴亦农刘少帅张安阔阚安康张晨邓伟峰蒋燕阳余慧琴朱海峰杨森
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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