CN208834834U - A kind of superconducting magnet room temperature current feed attachment device - Google Patents
A kind of superconducting magnet room temperature current feed attachment device Download PDFInfo
- Publication number
- CN208834834U CN208834834U CN201821959423.6U CN201821959423U CN208834834U CN 208834834 U CN208834834 U CN 208834834U CN 201821959423 U CN201821959423 U CN 201821959423U CN 208834834 U CN208834834 U CN 208834834U
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- China
- Prior art keywords
- room temperature
- superconducting magnet
- current feed
- insulated electric
- conductor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004020 conductor Substances 0.000 claims abstract description 70
- 239000004593 Epoxy Substances 0.000 claims description 21
- 239000010935 stainless steel Substances 0.000 claims description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 125000003700 epoxy group Chemical group 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000005284 excitation Effects 0.000 abstract description 5
- 239000001307 helium Substances 0.000 abstract description 5
- 229910052734 helium Inorganic materials 0.000 abstract description 5
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000005347 demagnetization Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002887 superconductor Substances 0.000 description 1
Landscapes
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
The utility model discloses a kind of superconducting magnet room temperature current feed attachment devices, comprising: vacuum plant, the vacuum plant top are equipped with through-hole；Insulated electric conductor component is set in the through-hole, including insulated electric conductor and with the insulating nut of its threaded engagement；Bellows component, the upper end are fixedly connected with the vacuum plant, and lower end is fixedly connected with insulated electric conductor and it can be driven to move up and down；Conductor assembly is set in the vacuum plant, including conductor and conductive support, is in contact when the insulated electric conductor moves down with the conductor.In superconducting magnet excitation and demagnetization, room temperature current feed may make to connect well with 50K high-temperature superconductive lead wire internal connection using above-mentioned apparatus；After excitation, the two is disconnected by tightening insulating nut, the conductive heat leakage of room temperature current feed when can reduce superconducting magnet steady-state operation.Above-mentioned whole process does not consume liquid helium, does not need the low temperature environment of 4.2K, easy to operate, low in cost.
Description
Technical field
The utility model relates to superconducting magnet technical fields more particularly to a kind of superconducting magnet room temperature current feed to connect
Device.
Background technique
Currently, helium gas cooling current feed technology is widely used in superconducting magnet field, to reach superconducting magnet excitation and move back
Safe current-carrying when magnetic.This technology must consume liquid helium, to generate cold helium, to cool down current feed.Meanwhile this technology is necessary
By the service tower of superconducting magnet, the current feed plug under 4.2K worst cold case is carried out, operation difficulty is larger.
Utility model content
It is easy to operate the purpose of the utility model is to provide a kind of superconducting magnet room temperature current feed attachment device, and
Use cost is lower.
To achieve the above object, the utility model provides a kind of superconducting magnet room temperature current feed attachment device, packet
It includes:
Vacuum plant, the vacuum plant top are equipped with through-hole；
Insulated electric conductor component is set in the through-hole, including insulated electric conductor and with the insulating nut of its threaded engagement；
Bellows component, the upper end are fixedly connected with the vacuum plant, and lower end is fixedly connected with insulated electric conductor and can
Drive it to move up and down；
Conductor assembly is set in the vacuum plant, including conductor and conductive support, and the insulated electric conductor is to moving down
It is in contact when dynamic with the conductor.
Preferably, the upper outer of the vacuum plant is provided with limited block, for preventing the insulating nut from working
It is subjected to displacement in the process.
Preferably, the conductive support is the fixed support component of epoxy, including two pendant epoxies support rods being fixedly connected
With bottom epoxy support plate, the conductor is set in the bottom epoxy support plate, the two pendant epoxies support rods and vacuum
The inside upper surface of device is fixedly connected.
Preferably, the conductor is copper pedestal.
Preferably, the bellows component upper end and the vacuum plant weld.
Preferably, the insulated electric conductor lower end outside is provided with stainless steel annular element, the stainless steel annular element with it is described
It welds the lower end of bellows component.
It preferably, is interference fit between the stainless steel annular element and the insulated electric conductor.
Preferably, the contact surface of the lower end of the insulated electric conductor and the copper pedestal is tapered surface.
Preferably, the vacuum plant is composed of flanged plate.
Superconducting magnet provided by the utility model is in room temperature current feed attachment device, the upper end of the insulated electric conductor
Under atmospheric condition, lower end is located in the vacuum plant；When notconnect state, the insulating nut is screwed, described exhausted
Edge conductor is with described free of conductors to disconnect；When being converted to connection status, the insulating nut is unscrewed, outside atmosphere
Entered in the bellows component by the gap between the insulated electric conductor and the insulating nut, because of ripple tube outer surface position
Under vacuum state, thus the draught head of its surfaces externally and internally causes bellows component to generate downward power, so that it generates elasticity
Deformation extends downward, while driving the insulated electric conductor to move down until being in contact with the conductor.
In superconducting magnet excitation and demagnetization, room temperature current feed and 50K high-temperature superconductor electricity may make using above-mentioned apparatus
It is good to flow the connection of lead internal connection, and then reduces contact resistance, with the thermogenetic 50K thermic load of joule when reducing current-carrying,
It ensure that high-temperature superconductive lead wire upper end temperature is not higher than 77K always.It, will by tightening insulating nut after excitation
Room temperature current feed and 50K high-temperature superconductive lead wire internal connection disconnect, when can reduce superconducting magnet steady-state operation, room temperature
The conductive heat leakage of current feed 300K to 50K.The entire use process of above-mentioned apparatus does not consume liquid helium, does not need the low temperature of 4.2K
Environment, it is easy to operate, it is low in cost.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is superconducting magnet room temperature current feed attachment device provided by a kind of specific embodiment of the utility model
Front section view；
Fig. 2 is the partial enlarged view of insulated electric conductor component and bellows component in Fig. 1；
Fig. 3 is the partial enlarged view of the fixed support component of epoxy in Fig. 1.
Appended drawing reference of the Fig. 1 into Fig. 3 is as follows:
1, insulated electric conductor；2, insulating nut；3, limited block；4, bellows component；5, vacuum pumping port；6, the fixed support of epoxy
Component；7, copper pedestal；8, flanged plate；61, stainless steel fixed block；62, pendant epoxies support rod；63, bottom epoxy support plate；41,
Bellows upper connector；42, connector under bellows；11, stainless steel annular element.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model core is to provide a kind of superconducting magnet room temperature current feed attachment device.
Fig. 1-3 is please referred to, Fig. 1 is superconducting magnet room temperature electric current provided by a kind of specific embodiment of the utility model
The front section view of wire connections；Fig. 2 is the partial enlarged view of insulated electric conductor component and bellows component in Fig. 1；Fig. 3 is
The partial enlarged view of the fixed support component of epoxy in Fig. 1.
In a kind of specific embodiment, superconducting magnet provided by the utility model room temperature current feed attachment device, packet
Vacuum plant is included, top is equipped with through-hole, is provided with insulated electric conductor component in through-hole.The vacuum plant can be 8 groups by flanged plate
It closes, or other materials is made, and can be cylinder-shaped or cube, in addition lead on the lateral wall of the vacuum plant
Often it is additionally provided with vacuum pumping opening 5.
Above-mentioned attachment device further includes insulated electric conductor component and bellows component 4.Insulated electric conductor component is set to vacuum holding
In the top through-hole set, the insulated electric conductor 1 and insulating nut 2 of threaded engagement are specifically included；The generally vertical setting of insulated electric conductor 1 is passed through
It is through in through-hole, the radius of insulating nut 2 is greater than through-hole radius, is conveniently set to the outside of through-hole.Bellows component 4 it is upper
End is fixedly connected with vacuum plant, and lower end is fixedly connected with insulated electric conductor 1, that is to say, that insulated electric conductor 1 is located at vacuum plant
Interior part is predominantly located among bellows component 4, while the lower end of insulated electric conductor 1 is exposed to except bellows component 4.
Meanwhile the outer surface of bellows component 4, under vacuum state, inner surface is under atmospheric condition.To guarantee
Atmosphere inside bellows component 4 does not leak, and being fixedly connected between bellows component 4 and vacuum plant and insulated electric conductor 1 needs
To be tightly connected, welding usually can choose, by the upper connector 41 in the included outside at its upper end of bellows component 4,
Realize the welding of bellows component 4 and vacuum plant, structure is simple and leakproofness is guaranteed.It screws or unscrews in insulating nut 2
In the case where, bellows component 4 can drive insulated electric conductor 1 to move up and down by its internal and external pressure difference.Because bellows is tubulose, institute
With upper connector 41 for circular ring shape connector.
It is completely set up in vacuum plant in addition, above-mentioned attachment device further includes conductor assembly, and because vacuum holding
Other component will be also set, therefore conductor assembly includes conductor and dedicated conductive support, conductive support and vacuum in setting
Device is fixedly connected.The preferable metal of electric conductivity, such as copper or other metal or alloy may be selected in conductor herein, to keep away
Exempt from conductor to be subjected to displacement during the work time, the copper pedestal 7 with certain area can be set to, pass through bolt and conductor branch
Support member is fixed.
Wherein, epoxide resin material that is non-conductive and having certain support force can be used in conductive support.Conductive support can
Think the fixed support component 6 of epoxy comprising the two pendant epoxies support rods 62 and bottom epoxy support plate 63 being fixedly connected, three
Between can be to be bolted, conductor is set in bottom epoxy support plate 63, two pendant epoxies support rods 62 and vacuum plant
Inside upper surface is fixedly connected.It, can be stainless in its inside upper surface setting two if vacuum plant is that flanged plate 8 is composed
It is fixedly connected by steel fixed block 61 with bolt or screw with two pendant epoxies support rods 62, then passes through stainless steel fixed block 61
It is welded on the flanged plate 8 above vacuum plant.
The specific working principle is as follows for above-mentioned attachment device, and when insulating nut 2 unscrews, outside atmosphere passes through insulation
Gap between conductor 1 and insulating nut 2 enters in bellows component 4, because ripple tube outer surface is located under vacuum state, thus
The draught head of its surfaces externally and internally causes bellows component 4 to generate downward power, extends downward so that it generates elastic deformation, by
This drives insulated electric conductor 1 to move down until being in contact with the conductor of lower section, reaches connection status.It, will be exhausted when need to disconnect
Edge nut 2 screws, and drives insulated electric conductor 1 to move up and is detached from underlying conductor.The attachment device is simple to operate, Ji Nengbao
It demonstrate,proves room temperature current feed and the connection of 50K high-temperature superconductive lead wire internal connection is good；It again can tightening by insulating nut 2
The connection of the two is disconnected, thus when reducing superconducting magnet steady-state operation room temperature current feed conductive heat leakage.
As an improvement limited block 3 can be arranged in the upper outer of vacuum plant, it is used to prevent insulating nut 2 from existing
It is subjected to displacement in the course of work, is specifically as follows circular protrusion.
In a kind of specific embodiment, the lower end outside of insulated electric conductor 1 is provided with stainless steel annular element 11, by stainless
Steel annular element 11 realizes being fixedly connected for insulated electric conductor 1 and bellows component 4, can make the cross of bellows component 4 in this way
Diameter of section is significantly greater than the cross-sectional diameter of insulated electric conductor 1, that is, can avoid the too small generation friction in gap between the two, also favorably
It is increased in space in bellows, interior atmospheric pressure is sufficiently large in the state that insulating nut 2 unscrews.It specifically can be by bellows
Component 4 included lower connector 42 realizes the welding between stainless steel annular element 11 and glass stria tube.Connector 42 is descended herein
For circular ring shape connector.
Sealing is needed to connect between above-mentioned bellows component 4, stainless steel annular element 11 and insulated electric conductor 1, therefore stainless steel ring
It can be interference fit between shape part 11 and insulated electric conductor 1, naturally it is also possible to further add gasket therebetween.
In a kind of specific embodiment, the lower end of insulated electric conductor 1 and the contact surface of copper pedestal 7 are tapered surface, namely insulation
The lower end of conductor 1 is equipped with taper, and matching recessed portion is arranged in the top of copper pedestal 7, and the setting of the tapered surface can increase
The contact area of insulated electric conductor 1 and copper pedestal 7, so that the contact effect of the two is more preferable.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Superconducting magnet provided by the utility model is described in detail with room temperature current feed attachment device above.
Specific case used herein is expounded the principles of the present invention and embodiment, and the explanation of above embodiments is only
It is the method and its core concept for being used to help understand the utility model.It should be pointed out that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can be made to this utility model,
Modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (9)
1. a kind of superconducting magnet room temperature current feed attachment device characterized by comprising
Vacuum plant, the vacuum plant top are equipped with through-hole；
Insulated electric conductor component is set in the through-hole, the insulating nut (2) including insulated electric conductor (1) He Yuqi threaded engagement；
Bellows component (4), the upper end are fixedly connected with the vacuum plant, and lower end is fixedly connected with insulated electric conductor and can band
It is moved to move up and down；
Conductor assembly is set in the vacuum plant, including conductor and conductive support, when the insulated electric conductor moves down
It is in contact with the conductor.
2. superconducting magnet as described in claim 1 room temperature current feed attachment device, which is characterized in that the vacuum plant
Upper outer be provided with limited block (3), for preventing the insulating nut to be subjected to displacement during the work time.
3. superconducting magnet as claimed in claim 1 or 2 room temperature current feed attachment device, which is characterized in that
The conductive support is that epoxy is fixed support component (6), including two pendant epoxies support rods (62) being fixedly connected and bottom
Portion's epoxy support plate (63), the conductor are set on the bottom epoxy support plate (63), the two pendant epoxies support rods
(62) it is fixedly connected with the inside upper surface of vacuum plant.
4. superconducting magnet as claimed in claim 3 room temperature current feed attachment device, which is characterized in that the conductor is copper
Pedestal (7).
5. superconducting magnet as claimed in claim 4 room temperature current feed attachment device, which is characterized in that the bellows group
Part (4) upper end and the vacuum plant weld.
6. superconducting magnet as claimed in claim 5 room temperature current feed attachment device, which is characterized in that the insulated electric conductor
(1) lower end outside is provided with stainless steel annular element (11), under the stainless steel annular element (11) and the bellows component (4)
End welding.
7. superconducting magnet as claimed in claim 6 room temperature current feed attachment device, which is characterized in that the stainless steel ring
It is interference fit between shape part (11) and the insulated electric conductor (1).
8. superconducting magnet as claimed in claim 7 room temperature current feed attachment device, which is characterized in that the insulated electric conductor
(1) contact surface of lower end and the copper pedestal (7) is tapered surface.
9. superconducting magnet as claimed in claim 8 room temperature current feed attachment device, which is characterized in that the vacuum plant
It is composed of flanged plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821959423.6U CN208834834U (en) | 2018-11-26 | 2018-11-26 | A kind of superconducting magnet room temperature current feed attachment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821959423.6U CN208834834U (en) | 2018-11-26 | 2018-11-26 | A kind of superconducting magnet room temperature current feed attachment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208834834U true CN208834834U (en) | 2019-05-07 |
Family
ID=66320198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821959423.6U Withdrawn - After Issue CN208834834U (en) | 2018-11-26 | 2018-11-26 | A kind of superconducting magnet room temperature current feed attachment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208834834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215928A (en) * | 2018-11-26 | 2019-01-15 | 宁波健信核磁技术有限公司 | A kind of superconducting magnet room temperature current feed attachment device |
-
2018
- 2018-11-26 CN CN201821959423.6U patent/CN208834834U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215928A (en) * | 2018-11-26 | 2019-01-15 | 宁波健信核磁技术有限公司 | A kind of superconducting magnet room temperature current feed attachment device |
| CN109215928B (en) * | 2018-11-26 | 2024-05-24 | 宁波健信超导科技股份有限公司 | Normal temperature current lead connecting device for superconducting magnet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 315300 No. 427, Gaoke Avenue, Cixi High-tech Industrial Development Zone, Ningbo City, Zhejiang Province Patentee after: Ningbo Jianxin Superconducting Technology Co.,Ltd. Address before: 315301 No.427, Gaoke Avenue, Cixi hi tech Industrial Development Zone, Ningbo City, Zhejiang Province Patentee before: NINGBO JANSEN NMR TECHNOLOGY Co.,Ltd. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190507 Effective date of abandoning: 20240524 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190507 Effective date of abandoning: 20240524 |