CN109654787A - A kind of device of the thermally conductive radial adiabatic of axial elasticity low temperature - Google Patents
A kind of device of the thermally conductive radial adiabatic of axial elasticity low temperature Download PDFInfo
- Publication number
- CN109654787A CN109654787A CN201910056828.1A CN201910056828A CN109654787A CN 109654787 A CN109654787 A CN 109654787A CN 201910056828 A CN201910056828 A CN 201910056828A CN 109654787 A CN109654787 A CN 109654787A
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- China
- Prior art keywords
- low temperature
- thermally conductive
- axial elasticity
- elasticity low
- radial adiabatic
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Links
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 239000012774 insulation material Substances 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 8
- 230000007246 mechanism Effects 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a kind of devices of thermally conductive radial adiabatic of axial elasticity low temperature, including seal, insulation cold chain connection structure and cryogenic system, and insulation cold chain connection structure includes sequentially connected radial adiabatic structure and axial elasticity low temperature conductive structure.Radial adiabatic structure and axial elasticity low temperature conductive structure are set in seal, and seal and axial elasticity low temperature conductive structure are separately connected the cold source device of cryogenic system.Axial elasticity low temperature conductive structure includes sequentially connected cold finger to be cooled, heat carrier and thermally conductive cold finger；Thermally conductive cold finger connects cold source device.Radial adiabatic structure includes sequentially connected first collar, flexure spring and the second collar；First collar connects heat carrier, and the second collar connects seal.Flexure spring both ends are connected with optical axis, and the side of optical axis is circumferentially provided with annular groove, is filled with insulation material layer in annular groove.Heat loss of the present invention is small, for flexible connection, has not only reached the requirement for meeting cryogenic heat transfer, but also meets the purpose of position and attitude adjustment.
Description
Technical field
The present invention relates to a kind of cryogenic heat transfer devices, more particularly to a kind of dress of thermally conductive radial adiabatic of axial elasticity low temperature
It sets.
Background technique
In general, cryogenic heat transfer field needs mechanical structure to have excellent axial thermal conductivity effect, and radial with excellent
Good insulation effect, temperature very smooth can be conducted along axial mechanical structure during reaching cryogenic heat transfer, axial
Loss is controllable, and radially the conduction loss of mechanical structure is small as far as possible during cryogenic heat transfer, and radial heat conduction is played absolutely
Thermal effect reaches and improves axial heat conduction efficiency, and control radial adiabatic loss meets cryogenic heat transfer effect requirements.
But the connection of traditional cryogenic heat transfer mechanism part, it is rigid connection, axial thermal conductivity low efficiency is radial to pass
Heat loss is big.It is displaced in axially and radially without motion, the occasion that heat transfer mechanism needs axially and radially to adjust displacement can not be adapted to,
It is unsatisfactory for the requirement of cryogenic heat transfer mechanism.
Summary of the invention
Problem solved by the invention is just to provide a kind of device of thermally conductive radial adiabatic of axial elasticity low temperature, by reasonable
Planning and utilization, by the energy-optimised carry out axial transmission of heat transfer of cryogenic system, the radial energy that conducts heat carries out insulation isolation,
Reduction leakage heat loss is played, and be insulated cold chain connection structure there is axially and radially flexible rigidity, there is certain flexible deformation
Amount can satisfy mechanism and need the occasion that axially and radially position is adjusted, and be different from the rigid connection of Conventional cryogenic heat transfer mechanism, nothing
Displacement space is adjusted, the requirement that mechanism needs multi-angle to adjust is unable to satisfy.
A kind of device of the thermally conductive radial adiabatic of axial elasticity low temperature, including a seal, insulation cold chain connection structure and low
Warm system, insulation cold chain connection structure includes sequentially connected radial adiabatic structure and axial elasticity low temperature conductive structure.It is radial
Heat insulating construction and axial elasticity low temperature conductive structure are set in seal, seal and axial elasticity low temperature conductive structure difference
Connect the cold source device of cryogenic system.
Preferably, axial elasticity low temperature conductive structure includes sequentially connected cold finger to be cooled, heat carrier and thermally conductive cold
Refer to；Thermally conductive cold finger connects cold source device.
Preferably, radial adiabatic structure includes sequentially connected first collar, flexure spring and the second collar；First axle
Ring connects heat carrier, and the second collar connects seal.
Preferably, flexure spring both ends are connected with optical axis, the side of optical axis is circumferentially provided with annular groove, is filled in annular groove
Insulation material layer.
Preferably, the end face of thermally conductive cold finger and heat carrier carries out contact connection.
Preferably, being provided with inner hole on the end face that heat carrier is contacted with cold finger to be cooled, cold finger to be cooled passes through gap
Cooperation, is inserted into the inner hole of heat carrier, is adhesively fixed using epoxide-resin glue.
Preferably, seal includes shell and casing base, shell is arranged in casing base, and casing base connects cold source dress
It sets.
Preferably, casing base is a vacuum sealing cylinder；Casing base is welded to connect with cold source device；Shell is fixed
It is connected on the inner sidewall of casing base.
Preferably, shell connects the second collar；Thermally conductive cold finger is welded to connect with cold source device.
Preferably, cold source device is liquid nitrogen container.
Compared with prior art, the beneficial effects of the present invention are: the low-temperature heat quantity inside liquid nitrogen container is passed through well
Axial conduction is efficiently transferred to cold finger to be cooled, meets cold finger operation temperature area to be cooled and requires.And pass through radial compliance spring
It is insulated mechanism, by liquid nitrogen container axial heat conduction in the process by the leakage heat drop of radial thermally conductive loss down to system requirement, is made
It obtains the low temperature cooling capacity that liquid nitrogen pot fetching supplies and meets cold finger operating temperature requirements to be cooled.
Especially solving the problems, such as traditional cryogenic heat transfer mechanism rigid connection without axial direction and radial position pose adjustment
On, both reached the requirement for not only having met cryogenic heat transfer, but also meet the purpose of position and attitude adjustment.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the thermally conductive radial adiabatic attachment structure schematic diagram of axial elasticity low temperature.
Fig. 3 is the structural schematic diagram of flexure spring.
Appended drawing reference: cold finger 1 to be cooled, the first collar 2, casing base 3, thermally conductive cold finger 4, liquid nitrogen container 5, shell 6, the second axis
Ring 7, flexure spring 8, heat carrier 9, annular groove 10, optical axis 11, inner hole 12.
Specific embodiment
The present invention is further illustrated with attached drawing combined with specific embodiments below.
During solving cryogenic heat transfer, axial thermal conductivity low efficiency, radial heat transfer loss is big to be asked
Topic.It especially solves the problems, such as that traditional cryogenic heat transfer mechanism is rigidly connected without axial direction and radial position pose adjustment, reaches both
Meet the requirement of cryogenic heat transfer, and meets the purpose of position and attitude adjustment.
As shown in Figure 1 to Figure 3, a kind of device of the thermally conductive radial adiabatic of axial elasticity low temperature, including a seal, insulation it is cold
Chain link structure and cryogenic system, insulation cold chain connection structure include axial elasticity low temperature conductive structure and equidistantly circumferentially connect
Connect at least two groups radial adiabatic structure on axial elasticity low temperature conductive structure.Radial adiabatic structure and axial elasticity low temperature are led
Heat structure is all set in seal, and seal and axial elasticity low temperature conductive structure are separately connected the cold source dress of cryogenic system
It sets, cold source device is liquid nitrogen container 5.
Axial elasticity low temperature conductive structure includes sequentially connected cold finger to be cooled 1, heat carrier 9 and thermally conductive cold finger 4.It is thermally conductive
One end of cold finger 4 is welded on liquid nitrogen container 5, and the end face of the other end and heat carrier 9 carries out contact connection.Heat carrier 9 with to cold
But inner hole 12 is provided on the end face that cold finger 1 contacts, cold finger 1 to be cooled is inserted into the inner hole 12 of heat carrier 9 by clearance fit
It is interior, it is adhesively fixed using epoxide-resin glue.
Radial adiabatic structure includes sequentially connected first collar 2, flexure spring 8 and the second collar 7.First collar 2 connects
Heat carrier 9 is connect, the second collar 7 connects seal, can connect by modes such as bondings.8 both ends of flexure spring are welded with optical axis
11, the side of optical axis 11 is circumferentially provided at least one annular groove 10, is filled with insulation material layer in annular groove 10.Flexure spring 8 is logical
Optical axis 11 is crossed to connect with the first collar 2 and the second collar 7 respectively.
Seal includes shell 6 and casing base 3, and shell 6 is arranged in casing base 3, the lateral wall and casing base 3 of shell 6
Inner sidewall be adhesively fixed by epoxide-resin glue.Casing base 3 is a vacuum sealing cylinder, one end sealing welding of casing base 3
On liquid nitrogen container 5.The inner sidewall of shell 6 connects the second collar 7.
Thermally conductive cold finger 4 and liquid nitrogen container 5 of the invention is welded to connect, and is filled liquid nitrogen inside liquid nitrogen container 5, is supplied to thermally conductive cold finger
4 temperature source, such as 77K.Thermally conductive cold finger 4 is contacted with 9 axial end face of heat carrier, can not only transmit cooling capacity, is also met thermally conductive
The flexible displacement request of body 9.Thermally conductive cold finger 4 passes to cold finger 1 to be cooled by the 77K low temperature cooling capacity of acquisition, by heat carrier 9, mentions
For the cooling capacity of cooling requirement, the temperature requirement of 1 need of work of cold finger to be cooled is maintained.Heat carrier 9 is connected with for playing flexibility
Fixed and heat insulating function radial adiabatic structure.It is provided with flexure spring 8 among radial adiabatic structure, is mentioned by flexure spring 8
For the power of radial drawing, keeps arranging in 9 play of heat carrier, and be filled with heat-insulating material on the optical axis 11 at 8 both ends of flexure spring, increase
Add the thermal conduction resistance with 7 mating surface of the first collar 2 and the second collar, reduces heat transfer efficiency.
Casing base 3 is used as a vacuum sealing cylinder, is welded with liquid nitrogen container 5, and shell 6 passes through epoxy resin gluing
It connects on the surface of casing base inner hole, is fixedly connected.The sealing for passing through casing base 3, forms a chamber, passes through extraneous vacuum machine
Group inside casing base 3 to evacuating, so that chamber obtains 1 × 10-2The vacuum degree of Pa meets internal components need of work.
Heat carrier 9 receives the cooling capacity that thermally conductive cold finger 4 transmits, and one side axial transmission meets to be cooled to cold finger 1 to be cooled
1 operating temperature requirements of cold finger；On the other hand, the cooling capacity that thermally conductive cold finger 4 receives, the flexure spring 8 of meeting radially, forms radial
Heat-transfer path, in order to reduce radial heat transfer loss, flexure spring 8 respectively with 7 bonding connection of the first collar 2 and the second collar, and
The both ends of flexure spring 8 open up radial annular groove 10, and filling heat insulator increases heat transfer resistance, reduce because of radial heat transfer loss
Cooling capacity, that is, block radial heat-transfer path, reduce radial heat transfer efficiency, so that loss caused by radial heat transfer meets use environment
It is required that.
It being connected by the uniformly distributed stretching of flexure spring 8, the space position solution of heat carrier 9 and shell 6 is substantially achieved determination,
In the axial direction, flexure spring 8 has certain elasticity, and heat carrier 9 is displaced with axially loaded size with certain adjustment
Amount, meets axial displacement and needs to adjust occasion；Meanwhile the rigidity size by changing flexure spring 8, thus it is possible to vary heat carrier diameter
To the size of displacement, meet the occasion that radial displacement needs to adjust；Pass through the arrangement of flexure spring 8, heat carrier 9 has axial
With radial displacement pose adjustment space, meet the occasion of different posture displacements.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of device of the thermally conductive radial adiabatic of axial elasticity low temperature, it is characterised in that: including a seal and be sequentially connected
Radial adiabatic structure, axial elasticity low temperature conductive structure and cold source device；
Seal connects cold source device, and radial adiabatic structure and axial elasticity low temperature conductive structure are set in seal.
2. the device of the thermally conductive radial adiabatic of axial elasticity low temperature according to claim 1, it is characterised in that: axial elasticity is low
Warm conductive structure includes sequentially connected cold finger to be cooled, heat carrier and thermally conductive cold finger；Thermally conductive cold finger connects cold source device.
3. the device of the thermally conductive radial adiabatic of axial elasticity low temperature according to claim 2, it is characterised in that: radial adiabatic knot
Structure includes sequentially connected first collar, flexure spring and the second collar；First collar connects heat carrier, and the connection of the second collar is close
Feng Ti.
4. the device of the thermally conductive radial adiabatic of axial elasticity low temperature according to claim 3, it is characterised in that: flexure spring two
End is connected with optical axis, and the side of optical axis is circumferentially provided with annular groove, is filled with insulation material layer in annular groove.
5. the device of the thermally conductive radial adiabatic of axial elasticity low temperature according to claim 2, it is characterised in that: thermally conductive cold finger with
The end face of heat carrier carries out contact connection.
6. the device of the thermally conductive radial adiabatic of axial elasticity low temperature according to claim 2, it is characterised in that: heat carrier with to
It is provided with inner hole on the end face of cooling cold finger contact, cold finger to be cooled is inserted into the inner hole of heat carrier by clearance fit, is used
Epoxide-resin glue is adhesively fixed.
7. the device of the thermally conductive radial adiabatic of axial elasticity low temperature according to claim 1, it is characterised in that: seal includes
Shell and casing base, shell are arranged in casing base, and casing base connects cold source device.
8. the device of the thermally conductive radial adiabatic of axial elasticity low temperature according to claim 7, it is characterised in that: casing base one
Vacuum sealing cylinder；Casing base is welded to connect with cold source device；Shell is fixedly connected on the inner sidewall of casing base.
9. according to the device of the thermally conductive radial adiabatic of axial elasticity low temperature described in claim 2,3 or 7, it is characterised in that: shell
Connect the second collar；Thermally conductive cold finger is welded to connect with cold source device.
10. the device of the thermally conductive radial adiabatic of axial elasticity low temperature according to claim 1, it is characterised in that: cold source device
For liquid nitrogen container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910056828.1A CN109654787B (en) | 2019-01-22 | 2019-01-22 | Axial flexible low-temperature heat conduction radial heat insulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910056828.1A CN109654787B (en) | 2019-01-22 | 2019-01-22 | Axial flexible low-temperature heat conduction radial heat insulation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109654787A true CN109654787A (en) | 2019-04-19 |
| CN109654787B CN109654787B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910056828.1A Active CN109654787B (en) | 2019-01-22 | 2019-01-22 | Axial flexible low-temperature heat conduction radial heat insulation device |
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| Country | Link |
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| CN (1) | CN109654787B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915419A (en) * | 2021-10-27 | 2022-01-11 | 广州文冲船厂有限责任公司 | Cryogenic fluid conveying device |
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| CN103245121A (en) * | 2013-04-26 | 2013-08-14 | 中国科学院上海技术物理研究所 | Cold-end flexible cold chain structure of coaxial pulse tube refrigerator and manufacturing method |
| JP2016050714A (en) * | 2014-08-29 | 2016-04-11 | 株式会社東芝 | Vacuum heat insulation module case for refrigerator and refrigerator |
| CN209371602U (en) * | 2019-01-22 | 2019-09-10 | 合肥锐联传热技术有限公司 | A kind of device of the thermally conductive radial adiabatic of axial elasticity low temperature |
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2019
- 2019-01-22 CN CN201910056828.1A patent/CN109654787B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487281A (en) * | 2003-05-26 | 2004-04-07 | 中国科学院上海技术物理研究所 | Vacuum cooling case |
| CN2718568Y (en) * | 2004-06-22 | 2005-08-17 | 中国科学院上海技术物理研究所 | Dewar with micro-refrigerator |
| CN101469930A (en) * | 2007-12-28 | 2009-07-01 | 中国航天科技集团公司第五研究院第五一〇研究所 | Composite temperature-variable refrigeration temperature coupling mechanism of liquid nitrogen refrigerating apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915419A (en) * | 2021-10-27 | 2022-01-11 | 广州文冲船厂有限责任公司 | Cryogenic fluid conveying device |
| CN113915419B (en) * | 2021-10-27 | 2023-06-02 | 广州文冲船厂有限责任公司 | Low-temperature fluid conveying device |
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| Publication number | Publication date |
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| CN109654787B (en) | 2024-01-30 |
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