CN105485953A - Cryogenic refrigerator - Google Patents
Cryogenic refrigerator Download PDFInfo
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- CN105485953A CN105485953A CN201510648594.1A CN201510648594A CN105485953A CN 105485953 A CN105485953 A CN 105485953A CN 201510648594 A CN201510648594 A CN 201510648594A CN 105485953 A CN105485953 A CN 105485953A
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- displacer
- cylinder body
- sleeve pipe
- space
- refrigerant gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
A cryogenic refrigerator includes : a axially extending cylinder; an axially reciprocating displacer provided inside the cylinder, at a gap between an inner circumferential surface of the cylinder and an outer circumferential surface of the displacer, the displacer shifting to create an expansion space between the displacer and a first axial end portion of the cylinder; a regenerator built in the displacer; and a sleeve disposed along the inner circumferential surface of the first axial end portion of the cylinder, encompassing the expansion space. A first passage for guiding the refrigerant gas from the regenerator to the gap is provided in the displacer, and a second passage for guiding the refrigerant gas from the gap to the expansion space is provided between the first axial end of the cylinder and the sleeve, and/or is provided between the outer surface and the inner surface of the sleeve.
Description
The application advocates the priority of No. 2014-206156th, the Japanese patent application based on application on October 7th, 2014.The full content of this Japanese publication is by reference to being applied in this description.
Technical field
The present invention relates to a kind of ultra-low temperature refrigerating device.
Background technology
Ultra-low temperature refrigerating device be used for by changes in temperature but object be cooled to the scope of such as 100K (Kelvin) left and right to about 4K.Ji Fude-McMahon formula (GM) refrigeration machine, pulse tube refrigerating machine, sterlin refrigerator, all refrigeration machines of Sol etc. are such as had as ultra-low temperature refrigerating device.The purposes of ultra-low temperature refrigerating device is such as cooling or the cryogenic pump of superconducting magnet or detector etc.
Patent document 1: Japan Patent No. 2659684 publication
Summary of the invention
One of exemplary object of one embodiment of the present invention is the heat exchange efficiency improving ultra-low temperature refrigerating device.
According to one embodiment of the present invention, ultra-low temperature refrigerating device possesses: cylinder body, extends vertically; Displacer, is disposed in described cylinder body in the mode that can move back and forth along described axis, and forms the expansion space of refrigerant gas between described described displacer axially and an end of described cylinder body; And regenerator, be built in described displacer.Between the inner peripheral surface and the outer peripheral face of described displacer of described cylinder body, be provided with space, described displacer possesses the passage importing described refrigerant gas from described regenerator to described space.Described ultra-low temperature refrigerating device also possesses sleeve pipe, and it is disposed in around described expansion space in the inner side of an end of described cylinder body.The passage importing described refrigerant gas from described space to described expansion space is determined between an end and described sleeve pipe of described cylinder body and/or between the outer surface of described sleeve pipe and inner surface by described sleeve pipe.
The heat exchange efficiency of ultra-low temperature refrigerating device can be improved according to the present invention.
Accompanying drawing explanation
Fig. 1 is for representing the schematic diagram of the ultra-low temperature refrigerating device involved by one embodiment of the present invention.
The diagrammatic top view of the sleeve pipe of Fig. 2 involved by one embodiment of the present invention.
The diagrammatic top view of the sleeve pipe of Fig. 3 involved by another embodiment of the invention.
The diagrammatic top view of the sleeve pipe of Fig. 4 involved by another embodiment of the invention.
In figure: 10-GM refrigeration machine, 12-regenerator, 18-expansion space, 20-cylinder body, 22-cooling bench, 24-displacer, 26-the 1st gap, 32-displacer lower openings, 36-sleeve pipe, 38-the 2nd gap, 40-ferrule sleeve portion, 42-overlaps tube bottom plate, space bottom 44-sidepiece space, 46-, 48-through hole, Q-axially.
Detailed description of the invention
Below, with reference to accompanying drawing, embodiments of the present invention are described in detail.In addition, in explanation, identical symbol is marked to identical important document, and suitably omit repeat specification.Further, following structure is example, does not do any restriction to scope of the present invention.
Fig. 1 is for representing the schematic diagram of the ultra-low temperature refrigerating device involved by one embodiment of the present invention.Ultra-low temperature refrigerating device is such as GM refrigeration machine 10.Illustrated GM refrigeration machine 10 is single stage.GM refrigeration machine 10 such as uses helium as refrigerant gas.
The ultra-low temperature refrigerating device of cold accumulator type such as GM refrigeration machine 10 grade possesses: regenerator 12, decompressor 14, compressor 16.As shown in Figure 1, regenerator 12 is arranged at decompressor 14, and the higher pressure refrigerant gas be configured to being supplied to decompressor 14 from compressor 16 carries out precooling.Decompressor 14 possesses the expansion space 18 of refrigerant gas.Be inflated in expansion space 18 by the refrigerant gas of regenerator 12 precooling, thus be cooled further.Regenerator 12 is configured to be cooled by the refrigerant gas cooled by expanding.Compressor 16 is configured to reclaim refrigerant gas and again to regenerator 12 and expansion space 18 the supply system refrigerant gas after being compressed from regenerator 12.
Decompressor 14 possesses cold head, and this cold head comprises cylinder body 20, cooling bench 22 and displacer 24.Cylinder body 20 is the closed container of refrigerant gas, and is the hollow component of Q extension vertically.Cylinder body 20 such as has drum.
Cooling bench 22 surrounds expansion space 18 and thermally coupled with cylinder body 20.Cooling bench 22 is such as formed as bottomed cylindrical, and is installed on the outside of cylinder body 20.Cooling bench 22 plays function as the heat exchanger carrying out heat exchange at external heat source etc. between cooling object and refrigerant gas.Cooling bench 22 is also sometimes referred to as thermic load flange.
Displacer 24 and cylinder body 20 coaxially arrange.Regenerator 12 is built in displacer 24.Displacer 24 is such as diametrically slightly smaller than the drum of cylinder body 20.Space is provided with between the inner peripheral surface of cylinder body 20 and the outer peripheral face of displacer 24.Below, this space is called the 1st gap 26.The outer peripheral face of displacer 24 refers to the side of displacer 24, and the inner peripheral surface of cylinder body 20 refers to the surface of the cylinder body 20 opposed with the side of displacer 24.
Displacer 24 is the piston inner space of cylinder body 20 being separated into expansion space 18 and room temperature space 28.Be formed with expansion space 18 relative to displacer 24 in the side of cylinder body 20, be formed with room temperature space 28 relative to displacer 24 at the opposite side of cylinder body 20.Therefore, it is possible to an end of the cylinder body 20 (or displacer 24) on axial Q is called low-temperature end, the other end of the cylinder body 20 (or displacer 24) on axial Q is called temperature end.Therefore, expansion space 18 is formed between the low-temperature end of displacer 24 and the low-temperature end of cylinder body 20, and room temperature space 28 is formed between the temperature end of displacer 24 and the temperature end of cylinder body 20.
In the following description, conveniently, in order to describe the relative position relation between important document, sometimes room temperature side is labeled as " on ", low temperature side is labeled as D score.Such as, can be expressed as, room temperature space 28 is positioned at the top of displacer 24, and expansion space 18 is positioned at the below of displacer 24.
Displacer 24 is can Q moves back and forth vertically mode be disposed in cylinder body 20.The drive division 25 for making displacer 24 move back and forth is linked with in the temperature end of displacer 24.By moving back and forth of displacer 24, the volume in expansion space 18 and room temperature space 28 changes respectively in a complementary fashion.
The displacer upper opening 30 for making refrigerant gas circulate between room temperature space 28 and regenerator 12 is provided with in the temperature end of displacer 24.Displacer upper opening 30 axially Q and being formed.The displacer lower openings 32 for making refrigerant gas circulate between regenerator 12 and expansion space 18 is provided with in the low-temperature end of displacer 24.Displacer lower openings 32 is the passage importing refrigerant gas from the low-temperature end of regenerator 12 to the 1st gap 26.Displacer lower openings 32 is formed along the radial direction orthogonal with axial Q.
On the top in the 1st gap 26, seal 34 can be set.Blocked by seal 34 and flowed by the gas in the 1st gap 26.Therefore, the refrigerant gas flow between room temperature space 28 and expansion space 18 is via regenerator 12.When seal 34 is the contact seals as sealing ring, seal 34 can be installed on the temperature end of displacer 24.Seal 34 also can be non-contact seals.In addition, in one embodiment, the flowing by the refrigerant gas in the 1st gap 26 or leakage can also be allowed.
Further, decompressor 14 possesses the sleeve pipe 36 be disposed in the inner side of the low-temperature end of cylinder body 20 around expansion space 18.Sleeve pipe 36 and cylinder body 20 arranged coaxial.Sleeve pipe 36 is installed on the low-temperature end of cylinder body 20.Therefore, at least 1 abutting part (not shown) abutted with the inner surface of cylinder body 20 can be set at the outer surface of sleeve pipe 36.Sleeve pipe 36 can be formed by the material (such as stainless steel) identical with cylinder body 20.
The passage importing refrigerant gas from the 1st gap 26 to expansion space 18 determined by sleeve pipe 36.This gas passage is be formed at the space between the low-temperature end of cylinder body 20 and sleeve pipe 36.Below, this space is called the 2nd gap 38.2nd gap 26, gap 38 to the 1 is narrow.That is, the width in width specific diameter the 1st gap 26 upwards in the 2nd gap 38 in radial direction is little.The flow velocity that sleeve pipe 36 forms the refrigerant gas of cooling bench 22 increases mechanism.
The diagrammatic top view of the sleeve pipe 36 of Fig. 2 involved by one embodiment of the present invention.As shown in Figures 1 and 2, sleeve pipe 36 possesses the ferrule sleeve portion 40 opposed with the inner peripheral surface of cylinder body 20 and the cover tube bottom plate 42 opposed with the bottom of cylinder body 20.Ferrule sleeve portion 40 extends to axial Q along inner circumferential surface in the low-temperature end of cylinder body 20.Cover tube bottom plate 42 extends from ferrule sleeve portion 40 towards radially inner side.So, sleeve pipe 36 is formed as tubular with the end.Ferrule sleeve portion 40 is such as the short cylinder of Q extension vertically, and diameter is slightly less than the internal diameter of cylinder body 20.Cover tube bottom plate 42 is for being installed on the plectane of the lower end in ferrule sleeve portion 40.
As shown in Figure 1, the 2nd gap 38 comprises: the sidepiece space 44 between the inner peripheral surface being formed at ferrule sleeve portion 40 and cylinder body 20 and be formed at overlap tube bottom plate 42 and cylinder body 20 bottom between and with sidepiece space 44 continuous print bottom space 46.Have through hole 48 at the center of cover tube bottom plate 42, through hole 48 makes space 46, bottom be communicated with expansion space 18.So, refrigerant gas stream can be extended to through hole 48.
The axial location of sleeve upper end 50 is roughly the same with the axial location of cooling bench upper end 23.Therefore, the height roughly the same with cooling bench upper end 23 is positioned at from the 1st gap 26 to the gas access in the 2nd gap 38.Gas access also can be arranged on height unlike this.Further, the gas vent (i.e. through hole 48) from the 2nd gap 38 to expansion space 18 is positioned at the radial position identical with the bottom centre 49 of cooling bench 22.Gas vent also can be arranged on position unlike this.
So, between cooling bench 22 and sleeve pipe 36, refrigerant gas stream is formed by sleeve pipe 36.This stream along cylinder body 20 inner surface and arrive the bottom centre 49 of cooling bench 22 from cooling bench upper end 23.The stream that sleeve pipe 36 provides the roughly whole region of the inner surface making refrigerant gas at cooling bench 22 to flow in the mode parallel with the inner surface of cooling bench 22.In FIG, represent the refrigerant gas flow in sidepiece space 44 by arrow A, represent the refrigerant gas flow in space 46, bottom by arrow B.Further, represent by arrow C and to be flowed by the gas of through hole 48.
In the movable range (hereinafter also referred to as stroke) axially of displacer 24, displacer lower openings 32 is positioned at than sleeve upper end 50 all the time more by above axial Q.Displacer lower openings 32 is positioned at the top in the 2nd gap 38 all the time, does not enter in sleeve pipe 36.Therefore, displacer lower openings 32 can not be covered by cylinder body 20 (or cooling bench 22) because of sleeve pipe 36.In addition, in one embodiment, at least in a part of stroke (when such as displacer 24 is positioned at lower dead center), displacer lower openings 32 also can be positioned at than sleeve upper end 50 more by below axial Q.
Sleeve upper end 50 determines the opening of the low-temperature end receiving displacer 24.In the stroke of displacer 24, the low-temperature end of displacer 24 is inserted in sleeve pipe 36 all the time.In other words, the movable range of displacer bottom surface 33 is among sleeve pipe 36.Sleeve upper end 50 is inserted in the bottom in the 1st gap 26, and ferrule sleeve portion 40 surrounds the low-temperature end of displacer 24.In addition, in one embodiment, at least at a part of stroke (when such as displacer 24 is arranged in top dead centre) or whole stroke, displacer bottom surface 33 also can outside sleeve pipe 36.
Radial gap between the low-temperature end being formed at ferrule sleeve portion 40 and displacer 24 when displacer 24 is inserted in sleeve pipe 36 is narrower than sidepiece space 44.That is, the width of this radial gap is less than the radial width in sidepiece space 44.Thus, the flow by sidepiece space 44 can be increased.
Sleeve pipe 36 also can provide seal between the low-temperature end of displacer 24 and sleeve pipe 36.Seal can be contact seals or non-contact seals part.The direct gas flowing from the 1st gap 26 to expansion space 18 is blocked by seal.Therefore, the refrigerant gas flow between the 1st gap 26 and expansion space 18 is all via the 2nd gap 38.Now, the inner surface in ferrule sleeve portion 40 can contact with the outer peripheral face of the low-temperature end of displacer 24.Or, also can be the inner surface in ferrule sleeve portion 40 and the low-temperature end of displacer 24 outer peripheral face between there is the noncontact in a little space.By moving back and forth of displacer 24, low-temperature end and the sleeve pipe 36 of displacer 24 slide, or move in a non contact fashion.
Further, GM refrigeration machine 10 possesses the piping system 52 for connecting compressor 16 and decompressor 14.High pressure valve 54 and low pressure valve 56 is provided with at piping system 52.Piping system 52 is connected to the temperature end of cylinder body 20.GM refrigeration machine 10 is configured to higher pressure refrigerant gas and is supplied to decompressor 14 from compressor 16 via high pressure valve 54 and piping system 52.Further, GM refrigeration machine 10 is configured to low pressure refrigerant gas and is vented to compressor 16 via piping system 52 and low pressure valve 56 from decompressor 14.
GM refrigeration machine 10 possess with displacer 24 move back and forth synchronously opening and closing high pressure valve 54 and low pressure valve 56 thus the valve drive division (not shown) of the supply switched for the refrigerant gas of expansion space 18 and discharge selectively.Valve drive division can be above-mentioned drive division 25.High pressure valve 54, low pressure valve 56 and valve drive division also can be assembled in decompressor 14.
Then, the action of GM refrigeration machine 10 is described.Displacer 24 be positioned at the lower dead center of cylinder body 20 or its near time, high pressure valve 54 is unlocked.Higher pressure refrigerant gas is supplied to cylinder body 20 from compressor 16 by high pressure valve 54 and piping system 52.Refrigerant gas flow into regenerator 12 from room temperature space 28 by displacer upper opening 30.Refrigerant gas passes through regenerator 12 while be cooled.Refrigerant gas flows into expansion space 18 by displacer lower openings 32, the 1st gap 26 and the 2nd gap 38.During refrigerant gas flows into expansion space 18, displacer 24 moves to the top dead centre of cylinder body 20.Thus, the volume of expansion space 18 increases.So, expansion space 18 is full of by higher pressure refrigerant gas.
Displacer 24 be positioned at the top dead centre of cylinder body 20 or its near time, high pressure valve 54 is closed.Meanwhile or than its moment a little later, low pressure valve 56 is unlocked.The refrigerant gas of expansion space 18 carries out expanding and being cooled.Refrigerant gas absorbs heat from cooling bench 22.
Low pressure refrigerant gas is recovered by contrary path.Refrigerant gas flows into regenerator 12 from expansion space 18 by the 2nd gap 38, the 1st gap 26 and displacer lower openings 32.Refrigerant gas passes through regenerator 12 while cool regenerator 12.Refrigerant gas is discharged from cylinder body 20 by displacer upper opening 30 and room temperature space 28.Refrigerant gas is recycled to compressor 16 by low pressure valve 56 and piping system 52.During refrigerant gas flows out from expansion space 18, displacer 24 moves to the lower dead center of cylinder body 20.Thus, the volume reducing of expansion space 18, low pressure refrigerant gas is discharged from expansion space 18.
It is more than 1 cool cycles of GM refrigeration machine 10.Cooling bench 22 is cooled to desired temperature by this cool cycles repeatedly by GM refrigeration machine 10.So, GM refrigeration machine 10 can absorb heat from cooling bench 22 hot linked cooling object (not shown) and cool.Cooling bench 22 such as can be cooled to the target temperature of the scope being selected from about 10K to about 30K.Or cooling bench 22 such as also can be cooled to the target temperature of the scope being selected from about 50K to about 100K.
As above illustrate, according to the present embodiment, by arrange the refrigerant gas passage (i.e. the 2nd gap 38) that sleeve pipe 36 is determined from the 1st gap 26 to expansion space 18 in the inside of cylinder body 20 in the mode adjacent with cooling bench 22.Compared with the situation spraying gas directly to expansion space 18 with the low-temperature end from displacer 24 in the past, by so determining gas passage, the decline along the flow velocity components on the direction on the surface of cooling bench 22 can be suppressed.Compared with the past, can flow velocity be improved, therefore, it is possible to improve the heat exchange efficiency of cooling bench 22.
2nd gap 26, gap 38 to the 1 is narrow.Specifically, the gas passage determined in its exterior lateral area by sleeve pipe 36 is narrower than the space between cylinder body 20 and displacer 24 diametrically.Therefore, when flowing into gas passage from space, flow velocity can improve, thus can improve heat exchange efficiency.Known by estimating, when the flow velocity of the refrigerant gas flowing into expansion space 18 becomes 2 times, the refrigerating capacity of refrigeration machine improves about 5% to about 10%.Therefore, the large-scale refrigeration machine that refrigerating capacity is large, the recruitment of the refrigerating capacity obtained by the sleeve pipe 36 involved by application present embodiment is larger.The typical refrigeration machine of this large-scale refrigeration machine is single stage.Therefore, present embodiment is applicable to powerful single stage (such as, have more than 100W under 10K and have more than 500W and the single stage of the refrigerating capacity of below 1kW under the single stage of the refrigerating capacity of below 300W or 70K).
Further, according to the present embodiment, the fairly simple operation by sleeve pipe 36 being installed on cylinder body 20 can improve the heat exchange efficiency of refrigeration machine.The heat exchange efficiency of refrigeration machine can be improved like a cork by increasing sleeve pipe 36 on refrigeration machine in the past.
Above, describe the present invention according to embodiment.The present invention is not limited to above-mentioned embodiment, can various design alteration and can have various variation in addition, and this variation also belongs to scope of the present invention, this point approve by those skilled in the art.
Sleeve pipe 36 might not have cover tube bottom plate 42.In one embodiment, sleeve pipe 36 only has ferrule sleeve portion 40.Can say that the diameter of the through hole 48 of its lower end is identical with the diameter in ferrule sleeve portion 40.
The diagrammatic top view of the sleeve pipe 136 of Fig. 3 involved by another embodiment of the present invention.As shown in Figure 3, also can be formed concavo-convex at the outer surface of sleeve pipe 136 (such as ferrule sleeve portion).Now, protuberance 142 can be made to contact with the inner surface of cylinder body 20 (or cooling bench 22), thus form refrigerant gas passage 146 between recess 144 and the inner surface of cylinder body 20.Refrigerant gas passage 146 along cylinder body 20 axis and establish.With the inner surface of dotted line diagram cylinder body 20.
Equally, also can be formed concavo-convex in the bottom surface of cover tube bottom plate.Now, the gas passage be formed between cover tube bottom plate and cylinder body also can be made radially to establish.
Instead scheme, also can be formed concavo-convex at the inner surface of cylinder body.Now, the exterior surface of protuberance and sleeve pipe can be made, thus between recess and the outer surface of sleeve pipe, form the passage of refrigerant gas.
The diagrammatic top view of the sleeve pipe 236 of Fig. 4 involved by another embodiment of the present invention.Sleeve pipe 236 (such as ferrule sleeve portion) also can determine gas passage between the outer surface 238 of sleeve pipe 236 and inner surface 240.This gas passage also can be the through hole 242 being formed at sleeve pipe 236.Through hole 242 along cylinder body axis and establish.This through hole also can be arranged at cover tube bottom plate, and now through hole can radially be established.
In one embodiment, the gas passage (gas passage such as shown in Fig. 4) that the gas passage (gas passage such as shown in Fig. 1 or Fig. 3) be formed between cylinder body and sleeve pipe also can and be formed between the outer surface of sleeve pipe and inner surface combinationally uses.Such as, also can form gas passage between ferrule sleeve portion and cylinder body, and make continuous print gas passage therewith be formed in cover tube bottom plate as through hole.Or, also can form through hole in ferrule sleeve portion, and continuous print gas passage is therewith formed between cover tube bottom plate and cylinder body.
In one embodiment, in order to hold sleeve pipe, the external diameter of the low-temperature end of displacer can be set to and be slightly smaller than temperature end.Or, also the internal diameter of the low-temperature end of cylinder body or cooling bench can be set to the temperature end of being a bit larger tham cylinder body.
In one embodiment, also sleeve can be set for the low-temperature end of at least 1 level in two-stage type (or other multi-stags) refrigeration machine.
In the above-described embodiment, be illustrated for GM refrigeration machine 10, but be not limited to this.In one embodiment, sleeve pipe also can be arranged on the refrigeration machine of other kinds possessing the displacer being built-in with regenerator, the cylinder body holding displacer.
Possess the GM refrigeration machine 10 of the sleeve pipe involved by embodiment or other refrigeration machines and also can be used as cooling body in superconducting magnet, cryogenic pump, X-ray detector, infrared ray sensor, quantum photonic detector, semiconductor detector, dilution refrigeration machine, He3 refrigeration machine, adiabatic demagnetization refrigeration machine, helium liquefaction machine, cryostat etc. or liquid body.
Claims (4)
1. a ultra-low temperature refrigerating device, is characterized in that, possesses:
Cylinder body, extends vertically;
Displacer, is disposed in described cylinder body in the mode that can move back and forth along described axis, and forms the expansion space of refrigerant gas between described described displacer axially and an end of described cylinder body; And
Regenerator, is built in described displacer,
Between the inner peripheral surface and the outer peripheral face of described displacer of described cylinder body, be provided with space, described displacer possesses the passage importing described refrigerant gas from described regenerator to described space,
Described ultra-low temperature refrigerating device also possesses sleeve pipe, and it is disposed in around described expansion space in the inner side of an end of described cylinder body,
The passage importing described refrigerant gas from described space to described expansion space is determined between an end and described sleeve pipe of described cylinder body and/or between the outer surface of described sleeve pipe and inner surface by described sleeve pipe.
2. ultra-low temperature refrigerating device according to claim 1, is characterized in that,
Described sleeve pipe possesses: cylinder portion, opposed with the inner peripheral surface of described cylinder body; And base plate, it is opposed with the bottom of described cylinder body,
The described passage determined by described sleeve pipe is comprised: sidepiece space, is formed between the cylinder portion of described sleeve pipe and the inner peripheral surface of described cylinder body; And space, bottom, to be formed between the base plate of described sleeve pipe and the bottom of described cylinder body and continuous with described sidepiece space.
3. ultra-low temperature refrigerating device according to claim 2, is characterized in that,
The base plate of described sleeve pipe has through hole at center, and described through hole makes space, described bottom be communicated with described expansion space.
4. ultra-low temperature refrigerating device according to any one of claim 1 to 3, is characterized in that,
Described ultra-low temperature refrigerating device is single stage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-206156 | 2014-10-07 | ||
| JP2014206156A JP2016075429A (en) | 2014-10-07 | 2014-10-07 | Cryogenic refrigeration machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105485953A true CN105485953A (en) | 2016-04-13 |
| CN105485953B CN105485953B (en) | 2019-05-28 |
Family
ID=55632593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510648594.1A Active CN105485953B (en) | 2014-10-07 | 2015-10-08 | Ultra-low temperature refrigerating device |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20160097567A1 (en) |
| JP (1) | JP2016075429A (en) |
| CN (1) | CN105485953B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766322A (en) * | 2016-12-16 | 2017-05-31 | 浙江大学 | The G M refrigeration machines and method of a kind of cool end heat exchanger motion |
| CN112467939A (en) * | 2020-10-30 | 2021-03-09 | 高安源 | Ultra-low temperature motor |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6286242B2 (en) * | 2014-03-18 | 2018-02-28 | 株式会社日立製作所 | Superconducting magnet device |
| JP6773589B2 (en) * | 2017-03-15 | 2020-10-21 | 住友重機械工業株式会社 | Cryogenic freezer |
| US10753653B2 (en) * | 2018-04-06 | 2020-08-25 | Sumitomo (Shi) Cryogenic Of America, Inc. | Heat station for cooling a circulating cryogen |
| CN111936802B (en) * | 2018-04-06 | 2022-10-14 | 住友(Shi)美国低温研究有限公司 | Heat station for cooling circulating refrigerant |
| CN108344201A (en) * | 2018-04-09 | 2018-07-31 | 杨厚成 | A kind of displacer for acoustic energy refrigeration machine |
| US11913714B2 (en) | 2021-11-02 | 2024-02-27 | Anyon Systems Inc. | Dilution refrigerator with continuous flow helium liquefier |
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| JP2000121186A (en) * | 1998-10-19 | 2000-04-28 | Mitsubishi Electric Corp | Cold storage refrigerating machine |
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| CN103574961A (en) * | 2012-07-20 | 2014-02-12 | 住友重机械工业株式会社 | Regenerative refrigerator |
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| US3600903A (en) * | 1969-03-17 | 1971-08-24 | Cryogenic Technology Inc | Cryogenic heat station and apparatus incorporating the same |
| JP2821241B2 (en) * | 1990-06-08 | 1998-11-05 | 株式会社日立製作所 | Cryostat with liquefaction refrigerator |
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2014
- 2014-10-07 JP JP2014206156A patent/JP2016075429A/en not_active Withdrawn
-
2015
- 2015-10-06 US US14/876,672 patent/US20160097567A1/en not_active Abandoned
- 2015-10-08 CN CN201510648594.1A patent/CN105485953B/en active Active
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| JP2000121186A (en) * | 1998-10-19 | 2000-04-28 | Mitsubishi Electric Corp | Cold storage refrigerating machine |
| CN1399065A (en) * | 2001-07-24 | 2003-02-26 | 三洋电机株式会社 | Starling refrigerator |
| CN103196254A (en) * | 2012-01-06 | 2013-07-10 | 住友重机械工业株式会社 | Cryogenic refrigerator and displacer |
| CN103486756A (en) * | 2012-06-12 | 2014-01-01 | 住友重机械工业株式会社 | Cryogenic refrigerator and displacer |
| CN103574961A (en) * | 2012-07-20 | 2014-02-12 | 住友重机械工业株式会社 | Regenerative refrigerator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766322A (en) * | 2016-12-16 | 2017-05-31 | 浙江大学 | The G M refrigeration machines and method of a kind of cool end heat exchanger motion |
| CN106766322B (en) * | 2016-12-16 | 2019-05-07 | 浙江大学 | A kind of the G-M refrigeration machine and method of cool end heat exchanger movement |
| CN112467939A (en) * | 2020-10-30 | 2021-03-09 | 高安源 | Ultra-low temperature motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105485953B (en) | 2019-05-28 |
| JP2016075429A (en) | 2016-05-12 |
| US20160097567A1 (en) | 2016-04-07 |
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