Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A tandem pulse tube refrigerator

A pulse tube refrigerator, tandem technology, applied in refrigerators, refrigeration and liquefaction, compressors, etc., to achieve the effect of reducing length, compact structure, and small mechanical loss

Active Publication Date: 2021-10-08
TONGJI UNIV
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the phase modulation problem of the existing tandem pulse tube refrigerator, the present invention provides a tandem pulse tube refrigerator

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A tandem pulse tube refrigerator
  • A tandem pulse tube refrigerator
  • A tandem pulse tube refrigerator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, this embodiment is a two-stage tandem pulse tube refrigerator, and the first pulse tube refrigerator unit 10 includes a first radiator 11, a first regenerator 12, a first cooling capacity heat exchanger 13, a first Vessels14. The first pulse tube is then connected to the second pulse tube refrigerator unit 20 , which includes a second radiator 21 , a second regenerator 22 , a second cooling heat exchanger 23 and a second pulse tube 24 . The second vessel 24 is connected to a terminal phase regulator 40, which includes a terminal inertial tube 41 and a terminal gas reservoir 42. The terminal phase regulator 40 can make the second regenerator 22 work in a better phase. The hot end of the first pulse tube 14 of the first pulse tube refrigerator unit 10 is connected to the first phase modulator 70 , including a first inertia tube 71 and a first gas bank 72 . The first inertia tube 71 is connected to the hot end of the first pulse tube 14 to adju...

Embodiment 2

[0032] Such as figure 2 As shown, the present embodiment is a three-stage tandem pulse tube refrigerator to further utilize the expansion work of the second pulse tube refrigerator unit 20 . In this embodiment, on the basis of Embodiment 1, a third pulse tube refrigerator unit 30 is added between the terminal phase modulator 40 and the second pulse tube refrigerator unit 20, including a third radiator 31 and a third regenerator. 32 , the third cooling heat exchanger 33 , and the third vessel 34 . The third radiator 31 dissipates heat, and the third cooling heat exchanger 33 obtains cold energy, and the hot end of the third pulse tube 34 is connected to the second phase modulator 80, including the second inertia tube 81 and the second air reservoir 82 The second inertia tube 81 is connected to the hot end of the second pulse tube 24 so as to adjust the phase of the second-stage regenerator 22 to obtain a proper phase to obtain high heat recovery efficiency and further reduce ...

Embodiment 3

[0034] Such as image 3 In this embodiment, the first phase modulator 70 and the second phase modulator 80 in Embodiment 2 are replaced by a stepped solid phase modulator 50b, including a two-stage push piston 521, a two-stage cylinder 522 and a second formed The front cavity 523, the push piston 511 and the spring 514 form a vibration system in the cylinder 512. The front cavity 513 is connected to the hot end of the first vessel 14, and the push piston 511 vibrates under the pressure difference between the front cavity 513 and the back cavity 516. The second front cavity 523 is connected to the hot end of the second vessel 24 so as to adjust the phase of the second-stage regenerator 22 to obtain a proper phase to obtain high heat recovery efficiency and further reduce heat recovery loss.

[0035] Since the pulse tube units are directly connected, the work of the previous pulse tube refrigerator unit is directly transmitted to the latter unit, so there is no transmission loss...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a tandem pulse tube refrigerator, which includes a compressor and a pulse tube unit, the compressor is connected to the front end of the pulse tube unit, and the pulse tube unit includes n-stage pulse tube subunits, where n is greater than or equal to 2 Integer, wherein, each level of pulse tube subunits includes sequentially connected radiators, regenerators, cooling heat exchangers and pulse tubes, n-level pulse tube subunits are connected in series, and the pulse tube hot ends of the pulse tube subunits into the phaser. Compared with the prior art, the present invention overcomes the defects of the existing tandem pulse tube refrigerator, and connects a phase modulator at the pulse tube hot end of each pulse tube refrigerator unit, so that each stage of the pulse tube refrigerator The regenerators of the unit can get a good phase adjustment effect, which reduces the loss and improves the efficiency of the refrigerator.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to a tandem pulse tube refrigerator. Background technique [0002] A pulse tube refrigerator is a kind of gas refrigerator. Its principle is that the gas expands in the pulse tube to do work and cool. The gas in the pulse tube can be divided into three parts, one part is the gas to be expanded, which is low temperature, and the other part acts as a gas piston. The gas, part of which is the gas flowing from the phase adjustment device and back to the phase device, is at room temperature. [0003] In order to overcome the defect that the expansion work of the pulse tube of the pulse tube refrigerator cannot be recovered, a tandem pulse tube refrigerator is proposed, that is, the first pulse tube refrigerator unit is connected to the second pulse tube refrigerator unit to utilize the first pulse tube refrigerator unit. The expansion work of the first pulse tube refrigerator unit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F25B9/06
CPCF25B9/06
Inventor 朱绍伟
Owner TONGJI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com