CN105135736B - A kind of monoblock type vascular refrigerator phase modulation structure - Google Patents
A kind of monoblock type vascular refrigerator phase modulation structure Download PDFInfo
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- CN105135736B CN105135736B CN201510606668.5A CN201510606668A CN105135736B CN 105135736 B CN105135736 B CN 105135736B CN 201510606668 A CN201510606668 A CN 201510606668A CN 105135736 B CN105135736 B CN 105135736B
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- air reservoir
- phase modulation
- interior air
- phase
- monoblock type
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Abstract
The invention discloses a kind of monoblock type vascular refrigerator phase modulation structure, the structure combines phase modulation using helical duct with interior air reservoir, and adding an interior air reservoir by various sizes of helical duct forms, and helical duct is embedded in phase modulating mechanism whole interior with interior air reservoir.Helical duct connects vascular hot junction gas outlet and interior air reservoir, and is uniformly embedded in overall circumference, and interior air reservoir is located at the overall middle part of phase modulating mechanism.The beneficial effects of the present invention are：Using phase modulation apparatus as an entirety, space availability ratio is improved；Welding and flange-interface are reduced, increases overall air-tightness；Helical duct and interior air reservoir are embedded in phase modulating mechanism whole interior, reduce the gas disturbance caused by inertia tube vibration, increase refrigerator reliability.
Description
Technical field
The present invention relates to vascular field of low-temperature refrigeration, more particularly to a kind of monoblock type vascular refrigerator phase modulation apparatus.
Background technology
Developing rapidly for the technology such as Aero-Space, deep space probing, infrared, atomic energy, superconduction, promotes low-temperature refrigeration technology
Continue to develop and progressive.Important branch of the vascular refrigerator as cryogenic technique, because of its cold end movement-less part, simple in construction,
Cold head is with small vibration, reliability is high, has significant superiority in field of low-temperature refrigeration.The not no motion portion of pulse tube refrigerating machine cold end
Part, the phase relation between required quality stream and pressure wave is obtained by phase modulating mechanism.Inertia tube shakes using in elongated tubular
The effect of inertia of fluid is swung to adjust phase difference, has phase adjustment range wide and little the advantages of increasing compressor wasted work, no
The direct current phenomenon in similar bidirection air intake can be produced, is a kind of high-frequency vascular refrigerator pm mode widely used at present, its
Structure can also be replaced by the impedance type such as slit phase adjusting device.
Research shows that the passive type such as inertia cast phase modulation apparatus generally has big volume, poor sealing and vibration etc. and asked
Topic, these are relevant with the form and arrangement of phase modulation apparatus.For phase modulating mechanism form generally have small ports valve aerating storehouse,
Pipeline is generally arranged in outside air reservoir or outside compressor by the structures such as inertia tube aerating storehouse, bidirection air intake, inertia cylinder structure
Side, overall volume is reduced with this.However, the vibration that arrangement built in inertia tube is brought is larger, and then cause gas inside air reservoir
The fluctuation of stream.Phase angle and sound work(determine generally needed for foundation vascular hot junction for the selection of inertia tube, inertia effects phase in pipe
Angular dimension, frictional resistance influence sound power consumption dissipate how many.The analysis method of inertia tube generally has one-dimensional, two-dimentional, three-dimensional CFD to emulate
And simplify thermoacoustic model and calculate, CFD can more intuitively see each position phase angle change and each position flow regime in outlet pipe,
It is that accurately the theory of analysis hot sound refrigerating machine, its calculating to phase modulation are also more accurate at present to simplify thermoacoustic model.
Various countries are in the research for carrying out phase modulating mechanism at present, especially in the passive phase modulating mechanism neck of the impedance types such as Inertia of design pipe
Domain, in the more size and phase modulation rule that concentrate on each part such as inertia tube, by a large amount of approximate models and experiment to obstructed
Phase modulation ability under size is studied, and by the way that inertia tube is coiled in inside air reservoir to reduce overall dimensions, passes through then lined
And the technique such as welding reduces integral oscillation and increase air-tightness.
The content of the invention
It is an object of the invention to provide a kind of small-sized vascular refrigerator monoblock type phase modulation apparatus and its optimization method, is particularly
The monolithic construction of design phase modulation part is to improve small-sized Cryo Refrigerator space availability ratio, reduction is vibrated, increase air-tightness.This
Invention is the improvement on the basis of original vascular refrigerator overall structure, it is intended to effectively improves the space of overall phase modulating mechanism
Utilization rate, reduce vibration, reduce different part connections to increase air-tightness.Monolithic construction after optimization can be according to overall cloth
Office, changes its section configuration, makes full use of space, is easy to Practical Project layout application.Its technique can use Mold Making or
3D printing technique is integrally completed.
A kind of monoblock type vascular refrigerator phase modulation structure of the present invention, it leads to including phase modulating mechanism main body 3, coupling 4, spiral
Road 5, interior air reservoir 6, through hole 7.
In described monoblock type vascular refrigerator phase modulation structure, phase modulating mechanism main body 3 is cylindrical structure, from lightweight simultaneously
And the titanium material that intensity is high, cylindrical hollow part are interior air reservoir 6, and helical duct 5, phase modifier are embedded with cylinder circumferential inner wall
There is a coupling 4 structure main body upper surface, and coupling 4 is connected with vascular hot junction connecting leg by flange or hickey detachable block
Connect；Interior air reservoir bottom surface, the i.e. inner bottom surface of phase modulating mechanism body cylindrical body have a through hole 7 to be connected with helical duct 5.
Described phase modulating mechanism main body 3 is cuboid or irregular polyhedronses shape and structure.
Described helical duct 5 is spiral circular channel, spiral square duct or spiral slit passage, or is tied for more than
Two kinds of combinations in structure；
Described interior air reservoir 6 is not limited to cylinder, and its shape should make interior air reservoir volume empty in the inside of phase modulating mechanism main body 3
Between middle maximum.
The specific work process of the monoblock type vascular refrigerator phase modulation structure is as follows：
The working gas in outflow vascular hot junction enters monoblock type phase modulation structure by coupling, and working gas is in helical duct
Change flow regime, enter interior air reservoir via air reservoir hole；In the course of work, heat caused by friction can pass through outer wall in passage
Face is spread out of；Fluid mass stream and pressure wave phase angle change in helical duct, and quality stream gradually lags behind pressure wave, and
Change complete machine phase and then improve overall efficiency；
It is of the invention compared with existing pulse tube cooling system, the advantage is that：
1. inertia tube and air reservoir are replaced as an entirety, inertia tube by circular or other shapes section passage, gas
Storehouse is replaced by void volume among overall structure, greatly reduces the size of overall phase modulation structure, and structure is compacter；Applied to work
Cheng Shangke adjusts monolithic construction according to actual conditions, so as to meet wider array of refrigeration machine application scenario.
2. circular channel and void volume as an entirety, reduce inertia tube and individually arrange the vibration brought during operation,
So as to reduce the fluctuation of air reservoir internal gas flow, increase refrigerator operation reliability.
3. monoblock type arrangement reduces the connection between different parts, the processes such as bolt, welding are reduced, are dropped to a certain extent
Low process complexity, while add the air-tightness of structure.
Brief description of the drawings
Fig. 1 is the external air reservoir coiled structure schematic diagram of conventional inertia tube；
Fig. 2 is monoblock type phase modulation constructional appearance schematic diagram of the present invention；
Fig. 3 is monoblock type phase modulating mechanism internal structure profile of the present invention；
Fig. 4 is the monoblock type phase modulating mechanism and vascular refrigerator attachment structure schematic diagram of the present invention；
Label in figure:
1. air reservoir；2. external inertia tube；3. phase modulating mechanism main body；4. coupling；5. helical duct；Air reservoir in 6.；It is 7. logical
Hole；8. compressor connecting leg；9. regenerator hot end heat exchanger；10. regenerator；11. cool end heat exchanger；12. vascular；13. vascular is warm
Hold heat exchanger；14. phase modulating mechanism connecting tube.
Embodiment
With reference to accompanying drawing, the structural principle of the present invention is described in further detail below.
Monoblock type vascular refrigerator phase modulation apparatus of the present invention, referring to the drawings 1, the present invention is freezed in conventional vascular
Improvement on apparatus and system, the main part for being different from conventional vascular system of the invention include：
Phase modulating mechanism is overall, and it mainly includes coupling 4, helical duct 5, through hole 7 and interior air reservoir 6；
The coupling of the present invention, helical duct, interior air reservoir are designed as an entirety, pass through between helical duct and interior air reservoir
Through hole 7 connects, as shown in Figure 3.Helical duct changes between quality stream and pressure wave due to internal flow effect of inertia
The phase modulating mechanism of the present invention is overall, and its coupling 4 can be set according to the size and position of phase modulating mechanism connecting tube 14
Arbitrary shape is calculated as, it is that the working fluid for flowing out vascular is entered into monoblock type phase modulation apparatus that it, which is acted on,；Helical duct 5 is mainly logical
Cross influenza existing for internal flow and change its quality stream and the phase relation of pressure wave, so as to adjust refrigeration machine integrally each position
Phase relation；Phase modulation part is fixed in overall structure, reduces the vibration that former external phase modulating mechanism is brought；Phase modulation part is made
For an entirety, overall space-consuming is reduced, designer can be designed to arbitrary shape as the case may be and optimize layout；
Monolithic construction reduces the connection between different parts, increases overall air-tightness；The present invention is easy to control overall chi in the application
Very little layout, improve space availability ratio；Vibration is reduced, increases refrigerator operation reliability.
Helical duct of the present invention, the structure such as spiral circular channel or spiral square duct is can be designed as, it has
Body physical dimension is given as desired according to the phase angle to be adjusted by designer.The structure of the present invention can be very good profit
With the arrangement space of monoblock type phase modulation structure, with reference to air reservoir size with phase modulation demand needed for meeting.
The present invention also can be the improvement in original inertia cast refrigeration machine structure, as shown in Figure 1.By original inertia cast
Inertia tube and air reservoir are fabricated to monoblock type phase modulating mechanism involved in the present invention according to full size in refrigeration machine, and its air reservoir shape can
Changed with the size according to inertia tube, adapt to integral design.Its monoblock type layout for the present invention creative thinking and excellent
Change method, monoblock type material, shape and size can make a choice as desired according to technical staff, its content and improved method
The category that the present invention protects should be fallen into.
Hot junction joint of the present invention, be connected with vascular hot junction connecting leg, its connected mode also may be selected flange connection or
Threaded connection, phase place change caused by connecting pipe are considered as within phase modulating mechanism.
The implementation result of the present invention is, changes the conventional design method of vascular refrigerator impedance type phase modulation apparatus, reduces
Equipment volume, improve space availability ratio；Vibration is reduced, it is disorderly to reduce internal gas flow；Increase air-tightness, improve service life and whole
Captain's phase security reliability.
The advantages of general principle and principal character and the invention of invention has been shown and described above.The technical staff of the industry
It should be appreciated that the present invention is not limited to the above embodiments, simply illustrate the present invention described in above-described embodiment and specification
Principle, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these change and
Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent
Thing defines.
Claims (4)
1. a kind of monoblock type vascular refrigerator phase modulation structure, it includes phase modulating mechanism main body (3), coupling (4), helical duct
(5), interior air reservoir (6), through hole (7), it is characterised in that：
In described monoblock type vascular refrigerator phase modulation structure, phase modulating mechanism main body (3) is cylindrical structure, from lightweight and
The high titanium material of intensity, cylindrical hollow part are interior air reservoir (6), and helical duct (5), phase modulation are embedded with cylinder circumferential inner wall
There is a coupling (4) mechanism body upper surface, and coupling (4) passes through flange or hickey detachable part with vascular hot junction connecting leg
Part connects；Interior air reservoir bottom surface, the i.e. inner bottom surface of phase modulating mechanism body cylindrical body have a through hole (7) to be connected with helical duct (5).
A kind of 2. monoblock type vascular refrigerator phase modulation structure according to claim 1, it is characterised in that described phase modifier
Structure main body (3) is cuboid or irregular polyhedronses shape and structure.
3. a kind of monoblock type vascular refrigerator phase modulation structure according to claim 1, it is characterised in that described spiral leads to
Road (5) is spiral circular channel, spiral square duct or spiral slit passage, or is two kinds of combinations in above structure.
A kind of 4. monoblock type vascular refrigerator phase modulation structure according to claim 1, it is characterised in that described interior air reservoir
(6) cylinder is not limited to, its shape should make interior air reservoir volume maximum in phase modulating mechanism main body (3) inner space.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606668.5A CN105135736B (en) | 2015-09-22 | 2015-09-22 | A kind of monoblock type vascular refrigerator phase modulation structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510606668.5A CN105135736B (en) | 2015-09-22 | 2015-09-22 | A kind of monoblock type vascular refrigerator phase modulation structure |
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| Publication Number | Publication Date |
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| CN105135736A CN105135736A (en) | 2015-12-09 |
| CN105135736B true CN105135736B (en) | 2017-11-21 |
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| CN111981722B (en) * | 2020-09-01 | 2021-09-07 | 苏州大学 | Pulse tube refrigerator and assembling method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3974869B2 (en) * | 2003-03-26 | 2007-09-12 | アイシン精機株式会社 | Pulse tube refrigerator |
| CN102032703B (en) * | 2010-11-26 | 2012-06-27 | 中国科学院上海技术物理研究所 | Integrated hot end phase adjusting structure of inertance-tube type pulse tube cooler and manufacturing method of phase adjusting structure |
| JP5415503B2 (en) * | 2011-10-05 | 2014-02-12 | 住友重機械工業株式会社 | Cryogenic refrigerator |
| CN104359693B (en) * | 2014-10-16 | 2017-06-27 | 中国科学院上海技术物理研究所 | Measure the standard Dewar and manufacture method of coaxial type pulse pipe refrigerator refrigeration performance |
| CN205119546U (en) * | 2015-09-22 | 2016-03-30 | 中国科学院上海技术物理研究所 | Integral canalis haemalis refrigerator phase modulation structure |
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