CN206075979U - A kind of high-temperature superconducting magnet - Google Patents
A kind of high-temperature superconducting magnet Download PDFInfo
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- CN206075979U CN206075979U CN201621140624.4U CN201621140624U CN206075979U CN 206075979 U CN206075979 U CN 206075979U CN 201621140624 U CN201621140624 U CN 201621140624U CN 206075979 U CN206075979 U CN 206075979U
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Abstract
This utility model embodiment discloses a kind of high-temperature superconducting magnet, including support cylinder, Dewar and high-temperature superconductor winding, Dewar includes outer tube and inner core, the upper end of outer tube is tightly connected with the upper end of inner core, vacuum space is provided between the outer surface of the inner surface and inner core of outer tube, the center of Dewar is provided with room temperature hole；Cylinder is supported to be nested within inner core；High-temperature superconductor winding is installed on the outer surface for supporting cylinder；High-temperature superconductor winding includes that by the high temperature superconductor coil of high-temperature superconductor band coiling, from the two ends end of high-temperature superconductor winding to center waist, the number of turn of high temperature superconductor coil is successively decreased successively.By the coil turn distribution for designing high-temperature superconductor winding, so that from the two ends end of high-temperature superconductor winding to center waist, the number of turn of high temperature superconductor coil is successively decreased successively, and the magnetic field of high evenness is produced in the certain area in the high-temperature superconducting magnet Neng centers room temperature hole that this utility model embodiment is provided.
Description
Technical field
This utility model is related to high temperature superconductor technology field, more particularly to a kind of high-temperature superconducting magnet.
Background technology
One of great discovery being the discovery that in human scienceses' history of superconduction.Superconductor technology is particularly sending out for high temperature superconductor technology
Exhibition, its meaning can be compared favourably with the utility model of electricity.Nowadays, with continuous development and the maturation of high temperature superconductor technology, high temperature
The application of superconductor technology constantly extends.The common application of high temperature superconductor technology is exactly high-temperature superconducting magnet.With conventional magnet
Compare, high-temperature superconducting magnet has the advantages that small volume, lightweight, small power consumption, magnetic field intensity are high and degree of stability is high, a large amount of
For communicating, medical treatment, the field such as high-energy physics and electric power.As, compared with conventional magnetic field, high-temperature superconducting magnet is tended to
Large space obtains the magnetic field intensity more much higher than conventional magnet, therefore, it is in the various fields for needing the magnetic field using high intensity, high
Temp. superconductive magnet is widely applied.For example, in medical field, many large medical equipments generally utilize high-temperature superconducting magnet
The high-intensity magnetic field of generation is detecting and treat the various complex diseases of the mankind.
At present, the common cylindrical shaped high-temperature superconducting magnet with room temperature hole, band are usually used in many large medical equipments
The common cylindrical shaped high-temperature superconducting magnet in room temperature hole can provide the magnetic field of high intensity in room temperature bore region for people.Existing band
The common cylindrical shaped high-temperature superconducting magnet in room temperature hole mainly includes high-temperature superconductor winding, supports the support tube of high-temperature superconductor winding
Body and carrying support Dewar of cylinder and high-temperature superconductor winding etc..
It is in the existing common cylindrical shaped high-temperature superconducting magnet with room temperature hole, many using equivalently-sized, number of turn identical
Individual high temperature superconductor coil module is making the winding of high-temperature superconducting magnet.The high-temperature superconductor winding of this spline structure is in room temperature bore region
The uniformity of magnetic field of interior generation is inadequate.In the room temperature bore region at high-temperature superconducting magnet center, the magnetic field of room temperature hole middle part is strong
Magnetic field intensity of the degree higher than room temperature hole two ends, the Distribution of Magnetic Field in room temperature hole space are presented feature small in the end and big in the middle.However,
In medical field, large medical equipment in addition to the magnetic field for needing high intensity, the uniformity in magnetic field is also required that it is very high because
The high evenness in magnetic field is the theoretical basiss of these armarium work, is the important parameter for evaluating these armarium.
The uniformity of magnetic field that common cylindrical shaped high-temperature superconducting magnet with room temperature hole itself is produced is inadequate, it is clear that can not meet and use need
Will.
Utility model content
A kind of high-temperature superconducting magnet is provided in this utility model embodiment, can be produced in the certain area in room temperature hole high
The magnetic field of intensity, high evenness, compact conformation, installation and operation low cost.
In order to solve above-mentioned technical problem, this utility model embodiment discloses following technical scheme.
According to one embodiment of the present utility model, there is provided a kind of high-temperature superconducting magnet, including support cylinder, Dewar and
High-temperature superconductor winding, Dewar include outer tube and inner core, and the upper end of outer tube is tightly connected with the upper end of inner core, the interior table of outer tube
Vacuum space is provided between face and the outer surface of inner core, the center of Dewar is provided with room temperature hole；Cylinder is supported to be nested in interior
Within cylinder；High-temperature superconductor winding is installed on the outer surface for supporting cylinder；High-temperature superconductor winding is included by high-temperature superconductor band coiling
High temperature superconductor coil, from the two ends end of high-temperature superconductor winding to center waist, the number of turn of high temperature superconductor coil is successively decreased successively.
According to one embodiment of the present utility model, high-temperature superconductor winding includes multiple high-temperature superconductor double-cake coils, described
The internal diameter of multiple high-temperature superconductor double-cake coils is equal, and the number of turn of the plurality of high-temperature superconductor double-cake coils is from high-temperature superconductor winding
Successively decrease to center waist successively two ends end.
According to one embodiment of the present utility model, the plurality of high-temperature superconductor double-cake coils series connection and by with power supply all the way
Power supply.
According to one embodiment of the present utility model, high-temperature superconducting magnet also includes cold screen, and cold screen is suspended in vacuum space
In, the inner surface of vacuum space is coated with the radiation protective layer of low-E, radiation protective layer in the horizontal direction and the vertical direction by
It is multiple insulation partitions separate, it is the plurality of insulation partitions be without magnetic, insulation, low temperature resistant and low thermal conductivity composite junction
Structure, the cold screen are high-thermal conductive metal structure.
According to one embodiment of the present utility model, the outer surface of cold screen is surrounded with spiral cooling tube, spiral cooling tube weldering
The outer surface of cold screen is connected on, spiral cooling tube is high-thermal conductive metal structure.
According to one embodiment of the present utility model, spiral cooling tube has inlet tube and outlet, and inlet tube stretches out very
Absolutely empty, the import of inlet tube is located in inner core；Outlet stretches out vacuum space, and the outlet of outlet is positioned at the outside of Dewar；
Inlet tube and outlet are tightly connected with the junction of vacuum space.
According to one embodiment of the present utility model, cold screen includes the cold screen of many height with vertical direction in the horizontal direction,
Connected by insulating spacer between the plurality of sub cold screen；Spiral cooling tube includes many sub- cooling tubes, and the plurality of son is cold
But connected by airtight insulating part between pipe, insulating spacer and airtight insulating part are without magnetic, insulation, low temperature resistant and low heat conduction
The composite construction of coefficient.
According to one embodiment of the present utility model, the surface of sub cold screen and sub- cooling tube is coated with the anti-of low-E
Radiating layer.
According to one embodiment of the present utility model, cold screen is hung in vacuum space by suspension rod, suspension rod include upper boom,
The intermediate bar of lower beam and connection upper boom and lower beam, upper boom are fixedly connected with the top inner wall of vacuum space, and lower beam is solid with cold screen
Fixed to connect, upper boom and lower beam are high-thermal conductive metal structure, and intermediate bar is to answer without magnetic, insulation, low temperature resistant and low thermal conductivity
Close structure.
According to one embodiment of the present utility model, support cylinder to include upper flange, lower flange and cylinder, cylinder it is upper and lower
Two ends are respectively arranged with step, upper flange and lower flange respectively by the spacing top and bottom in cylinder of step, upper flange and
Multiple circulation grooves are offered uniformly on lower flange, on cylinder axial direction.
The high-temperature superconducting magnet provided from above technical scheme, this utility model embodiment, including support cylinder, Du
Watt and high-temperature superconductor winding, Dewar includes outer tube and inner core, and the upper end of outer tube is tightly connected with the upper end of inner core, outer tube
Vacuum space is provided between inner surface and the outer surface of inner core, the center of Dewar is provided with room temperature hole；Support cylinder nested
Within inner core；High-temperature superconductor winding is installed on the outer surface for supporting cylinder；High-temperature superconductor winding is included by high-temperature superconductor band
The high temperature superconductor coil of coiling, from the two ends end of high-temperature superconductor winding to center waist, the number of turn of high temperature superconductor coil is successively
Successively decrease.By the coil turn distribution for designing high-temperature superconductor winding so that the two ends end from high-temperature superconductor winding is to center waist
Portion, the number of turn of high temperature superconductor coil successively decrease successively, the high-temperature superconducting magnet Neng centers room temperature that this utility model embodiment is provided
The magnetic field of high evenness is produced in the certain area in hole.In addition, this utility model is by being designed with vacuum space by Dewar
Double container and cold screen, spiral cooling tube are set in the vacuum space of Dewar, and in the inner surface, cold of vacuum space
The surface of screen, the radiation protective layer of the plated surface low-E of spiral cooling tube, can ensure high-temperature superconducting magnet well
Low temperature environment, significantly reduces the operating cost of high-temperature superconducting magnet, is conducive to the high temperature for further developing magnetic field of high uniformity to surpass
Magnetic conductor and promote its commercial applications.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, for ordinary skill people
For member, on the premise of not paying creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the sectional view of the high-temperature superconducting magnet according to one embodiment of the present utility model；
Fig. 2 is the structural representation of the Dewar of the Fig. 1 according to one embodiment of the present utility model；
Fig. 3 is the sectional view of the high-temperature superconductor winding of the Fig. 1 according to one embodiment of the present utility model；
Fig. 4 is the cold screen and the structural representation of spiral cooling tube of the Fig. 1 according to one embodiment of the present utility model；
Fig. 5 is the structural representation of the suspension rod of the Fig. 1 according to one embodiment of the present utility model；
Fig. 6 is the axonometric chart of the support cylinder of the Fig. 1 according to one embodiment of the present utility model；
Fig. 7 is the sectional view of the support cylinder of the Fig. 1 according to one embodiment of the present utility model；
Fig. 8 is the schematic perspective view of the high-temperature superconducting magnet of the Fig. 1 according to one embodiment of the present utility model；
In Fig. 1 to Fig. 8, reference is represented：
1- high-temperature superconductor windings, 2- high-temperature superconductor double-cake coils, 3- support cylinder, 4- Dewars, the cold screens of 5-, 6- suspension rods, 7-
Bolt, 8- metal disc springs, 9- double nuts, 30- lower flanges, 31- upper flanges, 32- cylinders, 33- circulation grooves, 34- steps, outside 41-
Cylinder, 42- inner cores, 43- room temperatures hole, 51- spiral cooling tubes, 52- insulating spacers, 511- inlet tubes, 512- outlets, on 61-
Bar, 62- intermediate bars, 63- lower beams.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in this utility model, below in conjunction with this reality
With the accompanying drawing in new embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that
Described embodiment is only a part of embodiment of this utility model, rather than the embodiment of whole.Based on this utility model
In embodiment, the every other enforcement obtained under the premise of creative work is not made by those of ordinary skill in the art
Example, should all belong to the scope of this utility model protection.
Fig. 1 is the sectional view of the structure of the high-temperature superconducting magnet according to one embodiment of the present utility model.Such as Fig. 1 institutes
Show, according to one embodiment of the present utility model, high-temperature superconducting magnet includes high-temperature superconductor winding 1, supports cylinder 3 and Dewar 4.
Dewar 4 includes outer tube 41 and inner core 42.As shown in figure 1, the upper end of outer tube 41 is tightly connected with the upper end of inner core 42, outer tube
Vacuum space is provided between 41 inner surface and the outer surface of inner core 42, the center of Dewar 4 is provided with room temperature hole 43.As schemed
Shown in 1, cylinder 3 is supported to be nested within inner core 42.High-temperature superconductor winding 1 is installed on the outer surface for supporting cylinder 3.High-temperature superconductor
Winding 1 includes the high temperature superconductor coil of high-temperature superconductor band coiling, the two ends end from high-temperature superconductor winding 1 to center waist,
The coil turn of high temperature superconductor coil successively decreases successively.In one embodiment of the present utility model, support the cylinder 3, Dewar 4 can be with
By being formed without magnetic, insulation, low temperature resistant, low thermal conductivity composite, the overall weight of high-temperature superconducting magnet is advantageously reduced, together
When advantageously reduce the thermic load of high-temperature superconducting magnet.
The structure of Dewar 4 is described referring to Fig. 2.As shown in Fig. 2 in one embodiment of the present utility model, outward
Cylinder 41 and inner core 42 may each be annular cylinder, i.e. the space that can be used to glove of outer tube 41 and inner core 42 is annular.
Outer tube 41 and inner core 42 concentrically axis.Outer shroud radius of the outer shroud radius of outer tube 41 more than inner core 42, the internal ring half of outer tube 41
Internal ring radius of the footpath less than inner core 42.In addition, the upper end of outer tube 41 is tightly connected with the upper end of inner core 42, outer tube 41 it is interior
Vacuum space is provided between the outer surface of surface and inner core 42, the center of Dewar 4 is provided with room temperature hole 43.So, outer tube
41 and inner core 42 cause Dewar 4 become the double container with vacuum space, the conduction thermic load of magnet can be greatly reduced.According to
One embodiment of the present utility model, cooling medium of the inner core 42 built with the low temperature environment for being used to keep high-temperature superconducting magnet.
Cooling medium can be liquid nitrogen or liquid helium.
According to embodiment of the present utility model, for high temperature superconductor coil 1, meeting from the two ends of high-temperature superconductor winding 1
To center waist, in the case that the coil turn of high temperature superconductor coil successively decreases successively, high-temperature superconductor winding 1 can include spiral shell for end
The high temperature superconductor coil of spool formula high temperature superconductor coil, high-temperature superconductor double-cake coils or other any reasonable service forms.Below
To describe of the present utility model to realize with high-temperature superconductor double-cake coils according to one embodiment of the present utility model with reference to Fig. 3
The situation of high-temperature superconductor winding 1.As shown in figure 3, high-temperature superconductor winding 1 includes multiple high-temperature superconductor double-cake coils 2.It is the plurality of
The internal diameter of high-temperature superconductor double-cake coils 2 is equal, the two ends end from high-temperature superconductor winding 1 to center waist, the plurality of high temperature
The number of turn of superconduction double-cake coils 2 is successively decreased successively.According to one embodiment of the present utility model, the double cake lines of the plurality of high-temperature superconductor
2 series connection of circle is simultaneously powered by same power supply all the way.
Multiple high-temperature superconductor double-cake coils 2 of Fig. 3 are connected and are powered by same power supply all the way, and high-temperature superconductor winding 1 passes through
The high-temperature superconductor double-cake coils 2 of different coil turns are set in its different parts, so as to adjust high-temperature superconductor winding 1 not
With the number of ampere turns at position, so as to adjust the uniformity of magnetic field of high-temperature superconducting magnet.Specifically, in embodiment of the present utility model
In, in order to the magnetic field of high evenness is obtained in the certain area in high-temperature superconducting magnet center room temperature hole to meet use demand,
From central waist of the two ends end of high-temperature superconductor winding 1 to high-temperature superconductor winding 1, the number of turn of high-temperature superconductor double-cake coils 2 according to
Secondary reduction, then, the result of the magnetic vector superposition in room temperature hole is exactly, uniform in the certain area in magnet center room temperature hole
Degree is greatly promoted.According to one embodiment of the present utility model, the number of turn of high-temperature superconductor double-cake coils is distributed according to magnet room temperature
The requirement of the uniformity of magnetic field in the certain area of hole is determining.
In addition, in embodiment of the present utility model, multiple high-temperature superconductor double-cake coils 2 are connected and by with the confession of power supply all the way
Electricity, compared to the situation that multiple high-temperature superconductor double-cake coils 2 are powered respectively by multiple power supplies, is avoided that the electric current of multiple power supplies draws
Line produces higher low temperature thermic load, so as to reduce the thermic load of high-temperature superconducting magnet.
It is well known that the high-temperature superconductor state of high-temperature superconductor needs low temperature environment to keep, conventional high-temperature superconductor
It is usually operated at liquid nitrogen temperature (77K) below, no matter takes immersion or conduct cooling being required to reduce refrigeration work consumption as far as possible,
So as to reduce the operating cost of high-temperature superconducting magnet.Produced with forms such as conduction, convection current, radiation in high-temperature superconducting magnet running
Raw low temperature thermic load.For the high-temperature superconducting magnet soaked using cooling medium, in order to reduce the Dewar outer tube under room temperature to low
Radiant heat and conduction heat that inner core under temperature is produced, according to one embodiment of the present utility model, set in the vacuum space of Fig. 1
Put cold screen to reduce Dewar outer tube to the radiant heat of Dewar inner core and conduction heat.Describe referring to Fig. 1 and Fig. 4.
Fig. 4 illustrates the structure of the cold screen according to one embodiment of the present utility model.As shown in Figure 1 and Figure 4, this practicality is new
The high-temperature superconducting magnet of type also includes cold screen 5.Cold screen 5 is suspended in the vacuum space above with reference to Fig. 1 descriptions.Cold screen 5 can be with
Formed by high-thermal conductive metal material, i.e., with high-thermal conductive metal structure.The cold screen 5 being arranged in vacuum space can reduce Dewar
Radiant heat and conduction heat of the outer tube to Dewar inner core, cold screen 5 play a part of thermodynamic barrier between outer tube and inner core.In order to enter one
Step strengthens this thermodynamic barrier effect of cold screen 5, as shown in figure 4, spiral cooling tube can circumferentially be arranged in the outer surface of cold screen 5
51, spiral cooling tube 51 is welded on the outer surface of cold screen 5.According to one embodiment of the present utility model, spiral cooling tube 51 has
There are inlet tube 511 and outlet 512.With reference to Fig. 1, inlet tube 511 stretches out vacuum space, and the import of inlet tube 511 is located at inner core
In 42.Outlet 512 stretches out vacuum space, and the outlet of outlet 512 is positioned at the outside of Dewar 4.According to of the present utility model one
Individual embodiment, in order to ensure the junction of the vacuum tightness of vacuum space, inlet tube 511 and outlet 512 and vacuum space
It is tightly connected, the setting of inlet tube 511 and outlet 512 does not affect the vacuum tightness of vacuum space.In this utility model
One embodiment in, spiral cooling tube 51 can also be formed by high-thermal conductive metal material, i.e. with high-thermal conductive metal structure.
As described above, when cold screen 5 and spiral cooling tube 51 are formed by high-thermal conductive metal material, in order to prevent in strong magnetic
Cold screen 5 and spiral cooling tube 51 in can form vortex because changes of magnetic field senses, and embodiment of the present utility model is by 5 He of cold screen
Spiral cooling tube 51 is separated into some with insulant.Specifically, referring to Fig. 4, cold screen 5 is in the horizontal direction and vertical direction
On can be separated into the cold screen of many height by multiple insulating spacers 52.In other words, the cold screen 5 of embodiment of the present utility model is in water
Square to vertical direction on include the cold screen of many height, connected by multiple insulating spacers 52 between the plurality of sub cold screen.
Similarly, spiral cooling tube 51 can be separated into many sub- cooling tubes by multiple airtight insulating parts (Fig. 4 is not shown).In other words,
Spiral cooling tube 51 includes many sub- cooling tubes, is connected by the plurality of airtight insulating part between the plurality of sub- cooling tube 51
Connect.In order to reduce the thermic load of high-temperature superconducting magnet, in one embodiment of the present utility model, the insulating spacer of cold screen 5
52 and the airtight insulating part of spiral cooling tube 51 can be by being formed without magnetic, insulation, low temperature resistant, low thermal conductivity composite, i.e.,
With without magnetic, insulation, low temperature resistant, low thermal conductivity composite construction.
According to embodiment of the present utility model, for the low temperature for further reducing producing because of heat radiation in high-temperature superconducting magnet
Thermic load, can be with the table on the surface of the cold screen of many height for being constituted cold screen 5, many sub- cooling tubes for being constituted spiral cooling tube 51
Face is coated with the radiation protective layer of low-E.Here, the radiation protective layer of cold screen 5, spiral cooling tube 51 radiation protective layer can be by
The low-E material such as gold or silver is formed.Here, it will be understood that due to being separated by insulating spacer 52 between the cold screen of many height
Open, separated by airtight insulating part between many sub- cooling tubes, therefore the radiation protective layer on the surface of sub- cooling tube and sub cold screen
Electrical circuit will not be formed, vortex will not be formed.Equally, in order to further reduce in high-temperature superconducting magnet because heat radiation produce it is low
Warm load, can be being coated with the radiation protective layer of low-E on the inner surface of vacuum space.Here, vacuum space is interior
Radiation protective layer on surface can also be formed by low-E materials such as gold or silver.In addition, in order to avoid vortex, vacuum space
Radiation protective layer on inner surface can be separated by multiple insulation partitions in the horizontal direction and the vertical direction.It is new in this practicality
In one embodiment of type, the plurality of insulation partitions can also be by without magnetic, insulation, low temperature resistant, low thermal conductivity composite wood
Material is formed, i.e., with without magnetic, insulation, low temperature resistant, low thermal conductivity composite construction.
As noted previously, as cold screen 5 is both horizontally and vertically separated into many height coolings by insulating spacer 52
Pipe and spiral cooling tube 51 are also separated into many sub- cooling tubes by airtight insulating part, thus avoid big ring vortex and its
The Jiao Er thermal losses of generation.The radioprotective coat of metal of the inner surface of the vacuum space between Dewar outer tube and inner core insulated every
If broken piece is separated into physically discontinuous stem portion, big ring vortex and its Jiao Er thermal losses for producing are it also avoid.
Cold screen 5 is described referring to Fig. 1 and Fig. 5 and how spiral cooling tube 51 is arranged in vacuum space.Reference
Fig. 1 and Fig. 5, cold screen 5 are hung in vacuum space by suspension rod 6, and cold screen 5 is vacantly arranged in vacuum space, not with Dewar
Inner core 42 and outer tube 41 are contacted.Referring to Fig. 5, according to one embodiment of the present utility model, suspension rod 6 can include upper boom 61, under
The intermediate bar 62 of bar 63 and connection upper boom 61 and lower beam 63, upper boom 61 are fixedly connected with the top inner wall of vacuum space, lower beam
63 are fixedly connected with cold screen 5.According to one embodiment of the present utility model, upper boom 61 and lower beam 63 can be by high-thermal conductive metals
Material is formed, and intermediate bar 62 can be by forming without magnetic, insulation, low temperature resistant, low thermal conductivity composite.Lower beam 63 is by high heat conduction
Metal material is formed, so, upper boom 63 with equally can be well matched with by the cold screen 5 that high-thermal conductive metal material is formed, each other it
Between affinity it is high, the stress between reducing on contact surface, so as to lower beam 63 can be fixedly connected with cold screen 5 very well.Together
Sample ground, upper boom 61 is formed by high-thermal conductive metal material, with the low-E metal being plated on the top inner wall surface of vacuum space
The radiation protective layer of material can be well matched with, and affinity each other is high, the stress between reducing on contact surface, from
And upper boom 61 can be fixedly connected with vacuum space top inner wall very well.Intermediate bar 62 is by without magnetic, insulation, low temperature resistant, low heat conduction system
Number composite is formed, and can be reduced the conduction heat supported by cold screen 5, be reduced thermic load.
Support referring next to Fig. 6 and Fig. 7 descriptions how the structure and high-temperature superconductor winding 1 of cylinder 3 are arranged on and support
On cylinder 3.With reference to Fig. 6 and Fig. 7, according to one embodiment of the present utility model, support cylinder 3 can include upper flange 31, under
Flange 30 and cylinder 32.With reference to Fig. 7, the upper and lower ends of cylinder 32 are respectively arranged with 30 points of step 34, upper flange 31 and lower flange
Not by the spacing upper and lower ends in cylinder 32 of step 34 of the upper and lower ends of cylinder 32.For the ease of cooling medium in upper and lower
To free flow, as shown in fig. 6, the axial direction perpendicular to cylinder 32 on upper flange 31 and lower flange 30 is uniformly offered
Multiple circulation grooves 33.As shown in Figure 6 and Figure 7, high-temperature superconductor winding 1 is installed on the outer surface for supporting cylinder 3, and upper flange 31 is with
Flange 30 passes through the spacing top and bottom in cylinder 32 respectively of step 34.As shown in fig. 7, upper flange 31 and lower flange 30 pass through
Without magnetic, insulation, the bolt 7 of low temperature resistant, low thermal conductivity composite, metal disc spring 8 and without magnetic, insulation, low temperature resistant, low lead
Hot coefficient composite double nut 9 connects.
Describe the operation principle of the high-temperature superconducting magnet according to embodiment of the present utility model referring to Fig. 8 in detail.
Fig. 8 is the dimensional structure diagram of the high-temperature superconducting magnet of Fig. 1.As illustrated in figures 1 and 8, high-temperature superconductor winding 1 is provided with multiple
High-temperature superconductor double-cake coils 2, and from the two ends end of high-temperature superconductor winding 1 to central waist, the line of high-temperature superconductor double-cake coils 2
The circle number of turn is successively decreased successively.Magnetic vector superposition as a result, with such coil turn distribution high-temperature superconductor winding 1 in room
The magnetic field of high evenness is produced in warm hole certain area.
In addition, this utility model is by Dewar to be designed with the double container and the vacuum in Dewar of vacuum space
Thermodynamic barrier is set in space, the superconductivity of high-temperature superconducting magnet can be further lifted.Heat is described in detail below with reference to Fig. 8
The operation principle of barrier.Referring to Fig. 8, high-temperature superconducting magnet of the present utility model operationally, is equipped with the inner core 42 of Dewar 4
Cooling medium (not shown), for example, liquid nitrogen or liquid helium.High-temperature superconductor winding 1 is all immersed in cooling medium.Cooling medium
Liquid level exceedes the upper surface of upper flange 31, but the import of the inlet tube 511 less than spiral cooling tube 51.It is arranged on vacuum space
The cold screen of high-thermal conductive metal 5 can block conduction of heat and heat radiation of the outer tube 41 to inner core 42, can ensure well inside inner core 42
High-temperature superconductor winding low temperature environment.Further, the cold screen of metal 5 is additionally provided with spiral cooling tube 51, spiral cooling tube 51
Cold screen 5 can be constantly cooled down, the thermodynamic barrier function of cold screen 5 is maintained and is further enhanced.Specifically, inside inner core 42
Cooling medium forms cold air in its ullage, due to the gas pressure intensity inside and outside Dewar 4 it is poor, import of the cold air from inlet tube 511
Into, spiral cooling tube 51 is flowed through, and the outside of Dewar 4 is flowed out to from the outlet of outlet 512, then cold air is in spiral cooling tube
Circulate in 51.So, sensible heat of the spiral cooling tube 51 using cold air, constantly by cold screen 5 during circulating
Cooling, so as to keep and enhance the thermodynamic barrier function of cold screen 5, further to block conduction of heat and heat of the outer tube 41 to inner core 42
Radiation, thus further ensure that high-temperature superconductor winding 1 is in low temperature environment, high-temperature superconductor winding 1 remains good
Superconductivity.
In sum, coil turn of the high-temperature superconducting magnet of the present utility model by design high-temperature superconductor winding different parts
Number distribution, can obtain the magnetic field of high intensity, high evenness in the certain area in magnet center room temperature hole.And here basis
On, this utility model is by Dewar to be designed with the double container of vacuum space and is arranged in the vacuum space of Dewar
Cold screen, spiral cooling tube, and the inner surface of vacuum space, the surface of cold screen, spiral cooling tube plated surface Low emissivity system
Several radiation protective layer, thus integrated application cryogenic technique, vacuum technique, composite technology ensure that high-temperature superconductor magnetic well
The low temperature environment of body, significantly reduces the operating cost of high-temperature superconducting magnet, is conducive to further developing the height of magnetic field of high uniformity
Temp. superconductive magnet and promote its commercial applications.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.
The above is only specific embodiment of the present utility model, is made skilled artisans appreciate that or realizing this
Utility model.Various modifications to these embodiments will be apparent to one skilled in the art, institute herein
The General Principle of definition can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.
Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and original disclosed herein
Reason and the consistent most wide scope of features of novelty.
Claims (10)
1. a kind of high-temperature superconducting magnet, it is characterised in that including supporting cylinder (3), Dewar (4) and high-temperature superconductor winding (1),
The Dewar (4) includes outer tube (41) and inner core (42), and the upper end of the outer tube (41) is upper with the inner core (42)
End seal connects, and is provided with vacuum space, Dewar between the inner surface of outer tube (41) and the outer surface of the inner core (42)
(4) center is provided with room temperature hole (43)；
Support cylinder (3) is nested within the inner core (42)；
The high-temperature superconductor winding (1) is installed on the outer surface for supporting cylinder (3)；
The high-temperature superconductor winding (1) includes by the high temperature superconductor coil of high-temperature superconductor band coiling, from the high-temperature superconductor around
To center waist, the number of turn of the high temperature superconductor coil is successively decreased successively for the two ends end of group (1).
2. high-temperature superconducting magnet according to claim 1, it is characterised in that the high-temperature superconductor winding (1) is including multiple
High-temperature superconductor double-cake coils (2), the internal diameter of the plurality of high-temperature superconductor double-cake coils (2) are equal, and the plurality of high-temperature superconductor is double
The number of turn of cake coil (2) is successively decreased from the two ends end of the high-temperature superconductor winding (1) successively to center waist.
3. high-temperature superconducting magnet according to claim 2, the plurality of high-temperature superconductor double-cake coils (2) series connection by same
Road power supply is powered.
4. high-temperature superconducting magnet according to claim 1, it is characterised in that also including cold screen (5), the cold screen (5) hang
It is placed in the vacuum space, the inner surface of the vacuum space is coated with the radiation protective layer of low-E, the radiation protective layer
Separated by multiple insulation partitions in the horizontal direction and the vertical direction, the plurality of insulation partitions is without magnetic, insulation, resistance to
The composite construction of low temperature and low thermal conductivity, the cold screen (5) is high-thermal conductive metal structure.
5. high-temperature superconducting magnet according to claim 4, it is characterised in that the outer surface of the cold screen (5) is surrounded with spiral shell
Rotation cooling tube (51), the spiral cooling tube (51) are welded on the outer surface of the cold screen (5), and the spiral cooling tube (51) is
High-thermal conductive metal structure.
6. high-temperature superconducting magnet according to claim 5, it is characterised in that the spiral cooling tube (51) is with inlet tube
(511) and outlet (512), the inlet tube (511) stretches out the vacuum space, and the import of the inlet tube (511) is located at
In the inner core (42)；The outlet (512) stretches out the vacuum space, and the outlet of the outlet (512) is positioned at described
The outside of Dewar (4)；The junction company of sealing of the inlet tube (511) and the outlet (512) and the vacuum space
Connect.
7. high-temperature superconducting magnet according to claim 5, it is characterised in that the cold screen (5) is in the horizontal direction and vertically
Include the cold screen of many height on direction, connected by insulating spacer (52) between the plurality of sub cold screen；The spiral cooling tube
(51) including many sub- cooling tubes, connected by airtight insulating part between the plurality of sub- cooling tube, the insulating spacer
(52) and the airtight insulating part be without magnetic, insulation, low temperature resistant and low thermal conductivity composite construction.
8. high-temperature superconducting magnet according to claim 7, the sub cold screen and the sub- cooling tube surface are coated with
The radiation protective layer of low-E.
9. high-temperature superconducting magnet according to claim 4, it is characterised in that the cold screen (5) is hung on by suspension rod (6)
In the vacuum space, the suspension rod (6) is including upper boom (61), lower beam (63) and connects the upper boom (61) and the lower beam
(63) intermediate bar (62), the upper boom (61) are fixedly connected with the top inner wall of the vacuum space, the lower beam (63) with
The cold screen (5) is fixedly connected, and the upper boom (61) and the lower beam (63) are high-thermal conductive metal structure, the intermediate bar
(62) be without magnetic, insulation, low temperature resistant and low thermal conductivity composite construction.
10. high-temperature superconducting magnet according to claim 1, it is characterised in that the support cylinder (3) is including upper flange
(31), lower flange (30) and cylinder (32), the upper and lower ends of the cylinder (32) are respectively arranged with step (34), the upper flange
(31) and the lower flange (30) is respectively by the spacing top and bottom in the cylinder (32) of the step (34), on described
Multiple circulation grooves (33) are offered uniformly on flange (31) and the lower flange (30), on cylinder (32) axial direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621140624.4U CN206075979U (en) | 2016-10-20 | 2016-10-20 | A kind of high-temperature superconducting magnet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621140624.4U CN206075979U (en) | 2016-10-20 | 2016-10-20 | A kind of high-temperature superconducting magnet |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571207A (en) * | 2016-10-20 | 2017-04-19 | 云南电网有限责任公司电力科学研究院 | High-temperature superconducting magnet |
| CN108573789A (en) * | 2018-06-29 | 2018-09-25 | 宁波健信核磁技术有限公司 | A kind of fixing device of high-temperature superconductive lead wire |
| CN110428949A (en) * | 2019-08-07 | 2019-11-08 | 上海交通大学 | Non-contact type superconducting magnet active energy release device and method based on flux coupled |
| CN117174426A (en) * | 2023-10-24 | 2023-12-05 | 上海交通大学 | Magnet structure of stepped parallel wound superconducting coil and manufacturing method thereof |
-
2016
- 2016-10-20 CN CN201621140624.4U patent/CN206075979U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571207A (en) * | 2016-10-20 | 2017-04-19 | 云南电网有限责任公司电力科学研究院 | High-temperature superconducting magnet |
| CN108573789A (en) * | 2018-06-29 | 2018-09-25 | 宁波健信核磁技术有限公司 | A kind of fixing device of high-temperature superconductive lead wire |
| CN108573789B (en) * | 2018-06-29 | 2024-04-19 | 宁波健信超导科技股份有限公司 | Fixing device for high-temperature superconductive current lead |
| CN110428949A (en) * | 2019-08-07 | 2019-11-08 | 上海交通大学 | Non-contact type superconducting magnet active energy release device and method based on flux coupled |
| CN117174426A (en) * | 2023-10-24 | 2023-12-05 | 上海交通大学 | Magnet structure of stepped parallel wound superconducting coil and manufacturing method thereof |
| CN117174426B (en) * | 2023-10-24 | 2024-03-05 | 上海交通大学 | Magnet structure of stepped parallel wound superconducting coil and manufacturing method thereof |
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