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Eyelet phase modulation apparatus of pulse tube refrigerator

A pulse tube refrigerator and phase modulation technology, which is applied in the direction of refrigerators, gas cycle refrigerators, refrigeration components, etc., to achieve the effects of easy implementation, obvious phase modulation effect, and good sealing effect

Inactive Publication Date: 2009-07-01
NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to start from the structural form of the small hole phasing device, overcome the shortcomings of a single structure, improve its structural type, and provide a small hole phasing device with simple structure, good sealing effect, and convenient replacement and connection

Method used

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  • Eyelet phase modulation apparatus of pulse tube refrigerator
  • Eyelet phase modulation apparatus of pulse tube refrigerator

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Experimental program
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Embodiment

[0014] Such as figure 1 Shown is the connection state of the present invention. The present invention includes two parts, the small hole joint 1 and the inert tube 2, and adopts the design form of the combination of the internal phase modulation channel and the external threaded joint as a whole. The internal fluid passage of the present invention is composed of small hole passage and inert tube capillary passage. The small hole channel end of the small hole joint 1 is screwed into the screw hole of the base in the form of an external threaded joint, and the step surface at the end of the joint is compressed by the pretightening force of the thread, thereby ensuring a sealed connection with the vessel 3 . The upper end of the inert pipe 2 communicates with the gas storage 4 by welding, and the other end has a cap nut and a ball joint. The bell mouth end of the small hole joint 1 is connected with the pressure cap nut and the ball joint of the inert tube 2 by means of externa...

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PUM

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Abstract

The invention discloses a small hole phase modulation apparatus of pulse-tube refrigerator with new structure, belonging to the gas flow cryogenic technical field. The apparatus comprises a small hole joint and an inertia tube, the whole structure adopts the design form of combining the interior phase modulation channel with the exterior screwed joint. The apparatus interior fluid channel is composed of a small hole channel and an inertia tube capillary channel, a small hole channel end of the small hole joint is communicated with a vessel by the mode of screw thread pressing seal, the small hole interior diameter can be formulated by phase modulation and amplitude modulation. The small hole joint and the inertia tube are communicated by the mode of ball head pressing, the length and the general radial of the inertia tube can be changed according to the required formulation. The invention has advantages of simple structure, good seal effect and convenient changing and connecting, and can be used for the modified type pulse-tube refrigerator and other throttle system apparatuses.

Description

technical field [0001] The invention belongs to the field of gas flow low-temperature technology, and in particular relates to a small hole phase adjustment device for pulse tube refrigerators, which can be used in improved pulse tube refrigerators and other throttling systems and other equipment. Background technique [0002] The improved pulse tube refrigerator with small holes and gas reservoir was proposed by foreign scholars in the 1980s, and it is still widely used today. According to the phase theory method of pulse tube refrigerators, using the small hole phase adjustment device, the small hole pulse tube refrigerator overcomes the temperature instability phenomenon existing in the long-term operation of other types of pulse tube refrigerators, and the structure is simple, which meets the practical requirements. , has become the preferred type of practical pulse tube refrigerator. [0003] As an important part of the small hole pulse tube refrigerator, the small hol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/06F25B9/14
CPCF25B9/145F25B2309/1424F25B2309/1421
Inventor 朱恩宝王小军
Owner NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
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