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A pulse tube refrigerator with co-phase modulation of inertia tube and small hole valve

A pulse tube refrigerator, inertial tube technology, applied in refrigerators, gas cycle refrigerators, refrigeration and liquefaction, etc., can solve problems such as limitations, and achieve the effects of increased adjustability, high refrigeration efficiency, and good operation flexibility

Active Publication Date: 2022-07-05
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the limitation problem of single inertial tube phasing, the present invention adds a small hole valve structure on the basis of inertial tube phasing, as a new type of composite phase modulator

Method used

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  • A pulse tube refrigerator with co-phase modulation of inertia tube and small hole valve
  • A pulse tube refrigerator with co-phase modulation of inertia tube and small hole valve
  • A pulse tube refrigerator with co-phase modulation of inertia tube and small hole valve

Examples

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Effect test

Embodiment 1

[0040] like figure 1 As shown, this embodiment is a pulse tube refrigerator with a composite phase modulation mechanism in which the inertial tube and the small hole valve are jointly phase-modulated. The pulse tube refrigerator includes a compressor 1 , a pulse tube unit 2 , an inertia tube phase modulator 3 and a small orifice valve phase modulator 4 .

[0041] The pulse tube unit 2 includes a radiator 21, a regenerator 22, a cooling heat exchanger 23, and a pulse tube 24. The end of the pulse tube is respectively connected to the inertial tube phaser 3 and the small hole valve phaser 4, wherein the inertial tube The phaser 3 includes an inertial tube 31 and a gas reservoir 32 at the end of the inertial tube, and the small hole valve phaser 4 includes a connecting pipe 41, a small hole valve 42, and a gas reservoir 43 at the end of the small hole valve, and the end of the small hole valve 42 is connected to the small hole valve. The terminal gas reservoir 43 is connected to...

Embodiment 2

[0044] like figure 2 As shown, in this embodiment, the gas reservoir 43 at the end of the small hole valve in the first embodiment is eliminated, and the gas reservoir 32 at the end of the inertial tube is used as the gas reservoir for the inertial tube 31 and the small hole valve 42 at the same time. The compactness of the structure of the refrigerator is further improved. The rest are the same as in Example 1.

Embodiment 3

[0046] like image 3 As shown, in this embodiment, the small hole valve 42 in Embodiment 1 is placed on the inertial tube 31 , and the inertial tube 31 shares a gas reservoir 32 at the end of the inertial tube. The rest are the same as in Example 1.

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Abstract

The invention relates to a pulse tube refrigerator in which an inertial tube and a small hole valve are jointly phase-modulated, comprising a compressor (1), a pulse tube unit (2) and a phaser, wherein the phaser comprises an inertial tube phaser (3) and the orifice valve phase modulator (4). The compressor is connected to the front end of the pulse tube unit, and the pulse tube unit includes a radiator, a regenerator, a cooling heat exchanger and a pulse tube which are connected in sequence. On the basis of , a small hole valve structure is added as a new type of composite phase modulator. Compared with the prior art, the present invention can make the pulse tube refrigerator adjust the cooling capacity in a wide temperature range, maintain high Bicano efficiency, and keep the efficiency stable.

Description

technical field [0001] The invention relates to the technical field of refrigerators, and specifically designs a pulse tube refrigerator in which an inertial tube and a small hole valve are jointly phase-modulated. Background technique [0002] Pulse tube refrigerator is a regenerative gas refrigerator with no moving parts at low temperature, simple structure, low cost and high reliability. [0003] The inertial tube is an empty tube with a certain length-to-diameter ratio. The inertial effect caused by the gas oscillation in the pulse tube is used to adjust the phase relationship between the pressure wave and the mass flow, and the phase can be adjusted in a large range, especially for high frequency, large cooling amount of vessels. In an inertial tube pulse tube refrigerator, the expansion work at the hot end of the pulse tube is dissipated into the air in the form of heat energy in the inertial tube. In fact, when the phase modulation is completed, the inertial tube do...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B9/14
CPCF25B9/145F25B2309/14
Inventor 陈萌佳朱绍伟
Owner TONGJI UNIV
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