CN101877268A - General superconducting magnet system - Google Patents
General superconducting magnet system Download PDFInfo
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- CN101877268A CN101877268A CN 201010203444 CN201010203444A CN101877268A CN 101877268 A CN101877268 A CN 101877268A CN 201010203444 CN201010203444 CN 201010203444 CN 201010203444 A CN201010203444 A CN 201010203444A CN 101877268 A CN101877268 A CN 101877268A
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Abstract
The invention discloses a general superconducting magnet system, comprising a superconducting coil which is arranged in a heat shielding cover, the heat shielding cover is arranged in a room-temperature vacuum container, the room-temperature vacuum container is formed by sealing a non-magnetic material inner shell, a magnetic material outer shell and two non-magnetic end plates at two ends. The structure of the superconducting magnet system is simpler, therefore, the weight is light and the volume is small; the material consumption is small, therefore, the material cost is low; the structure of the outer shell and the end plate is simple, the processing difficulty is reduced, the processing workload is reduced, the working efficiency is increased, and the processing cost is reduced.
Description
Technical field
The present invention relates to a kind of superconducting magnet, is a kind of solenoid type superconducting magnet that is used for fields such as ore dressing or purification of water quality specifically.
Background technology
Superconducting magnet makes the service area of magnet have higher magnetic field intensity owing to adopt superconductivity wire, thereby has application widely, for example medical MRI imaging, mine ore dressing or purification of water quality.
In superconducting magnet, because superconducting coil need work under enough low low temperature environment, superconducting magnet is soaked by liquid cryogenic fluid usually and is cooled off or cool off superconducting coil with the cold of refrigeration machine in the mode of solid conduction.In order to reduce the low-temperature space loss of refrigeration capacity, the one or more heat shielding covers of the superconducting coil outer setting of superconducting magnet, and be installed in jointly in the room temperature vacuum tank of the sealing that constitutes by inner casing, shell and end plate, this room temperature vacuum tank adopts non-magnetic materials such as stainless steel or aluminium alloy usually.
In superconducting magnet, in order to realize the uniformity requirement of central magnetic field, with reduce magnetic field and escape pollution environment, and magnetic field escapes the energy loss that causes and causes the central task magnetic field intensity to weaken, and avoid influence that the magnetic field that escapes removes isolated ferrimagnet and to the influence of turnover electronic equipment, in existing magnetic separator, also adding outside the room temperature vacuum tank that the non-magnetic material is made has magnetic conductivity shell and magnetic conductivity end plate, is the magnetic channel of design to be grown up in the solenoid profile.This outside the room temperature vacuum tank that the non-magnetic material is made the structure of extra again additional guide magnetic material end plate and shell, can significantly increase the volume and weight of superconducting magnet system.
Publication number is that the Chinese utility model patent document of CN201294130Y discloses " a kind of MRI superconducting magnet system ", it is a kind of medical MRI superconducting magnet system, the inner casing of its room temperature vacuum tank adopts the non-magnetic material, shell then adopts magnetic conductive material, and end plate adopts composite construction, annulus with housing contacts in the compound end plate is a magnetic conductor, and the annulus that contacts with inner casing is a non-magnetizer, can also add on the non-magnetizer that magnetic inductive block being set.This medical MRI superconducting magnet room temperature vacuum tank structure, though weight and volume can alleviate, yet this compound end plate that is made of magnetic conductor and non-magnetizer concentric ring because special composite construction, has therefore brought difficulty to processing.
Be that magnetic field in its room temperature hole is as work magnetic field generally to the utilization of solenoid superconducting magnet.According to actual needs, also need to utilize the magnetic field of the super layer of solenoid magnet ends sometimes, therefore need the end plate of outer cover of room temperature vacuum tank to adopt the non-magnetic material.Then, because the room temperature vacuum tank is a closed container that inside is vacuum, can't change end plate after completing.Therefore, develop a kind of general superconducting magnet that can be applicable to different operating modes, no matter concerning the producer still the user, all becoming very has realistic meaning.
Summary of the invention
In order to solve superconducting magnet structure complexity in the prior art, and adopt the big deficiency of compound end plate difficulty of processing, purpose of the present invention just is to provide a kind of novel general superconducting magnet system, this system configuration is simple, can utilize require magnet ends magnetic field and the end does not have the double requirements that magnetic field escapes and adjusts according to different operating modes.
The present invention adopts following technical scheme: a kind of magnetic separation superconducting magnet system, comprise the superconducting coil that places the heat shielding cover, the heat shielding cover is contained in the room temperature vacuum tank, and described room temperature vacuum tank is sealed to by the non-magnetic end plate at non-magnetic material inner, magnetic conductive material shell and two ends.
Described non-magnetic end plate also is mounted with one or more magnetic conductivity additional end plates with dismantled and assembled structure outward, makes the room temperature vacuum tank additional end plates of magnetic conductivity and shell directly form the outer magnetic channel of solenoid.The magnetic conductivity additional end plates can be fixed on the described non-magnetic end plate by bolt or screw or jig, and this mounting means is convenient to adjust at any time as required magnetic conductivity additional end plates quantity.Additional end plates is installed outside end plate, can reduces magnetic field and escape, can also by adjust magnetic field in the form at end plate place to adjust the uniformity of magnetic field in central task district.
Described non-magnetic end plate is to be embedded in described shell inboard, and its surface is not higher than described shell end face.
Mode by welding between described end plate and inner casing and the shell is connected, to form a seal cavity.
Described non-magnetic end plate is the stainless steel end plate.
Described magnetic conductive material can be high magnetic conductive material, for example electrical pure iron, steel alloy.
This superconducting magnet system of the present invention, the end plate that forms the room temperature vacuum tank adopts the non-magnetic material, the condition of work that needs to utilize the outer magnetic field of room temperature vacuum tank end plate in the work can be provided, in addition, outside the non-magnetic end plate, install after the magnetic additional end plates, make the room temperature vacuum tank additional end plates and the shell of magnetic conductivity directly form the outer magnetic channel of solenoid, compare with the structure of extra additional guide magnetic shell and end plate outside non-magnetic room temperature vacuum tank, still adopt the superconducting magnet system of the compound end plate of non-magnetic material and magnetic conductive material formation to compare with medical MRI, realizing under same technique effect (reduce magnetic field and escape and improve the uniformity of magnetic field of the service area) prerequisite, its structure is simpler, thereby not only in light weight, volume is little; And since material usage few so the cost of material is low; Because shell and tip plate configurations are simple, have also reduced difficulty of processing, the labor content of minimizing has improved operating efficiency, has reduced processing cost.
Description of drawings
Fig. 1 is the structural representation of a kind of superconducting magnet system of the present invention;
Fig. 2 is the another kind of execution mode schematic diagram of superconducting magnet system of the present invention;
Among the figure: 1-superconducting coil, 2-heat insulation layer, 3-thermal barrier, 4-inner casing, 5-shell, 6-end plate, 7-additional end plates.
Embodiment
Below by specific embodiment the present invention is described in further detail.
Shown in Figure of description 1, a kind of magnetic separator superconducting magnet system of the present invention comprises the superconducting coil 1 that places the heat shielding cover that is made of adiabatic material layer 2 and thermal barrier 3, and the heat shielding cover is contained in the room temperature vacuum tank, plays a role in insulation.The room temperature vacuum tank is become by non-magnetic end plate 6 welded seals at non-magnetic material inner 4, magnetic conductive material shell 5 and two ends.
The non-magnetic end plate of described inner casing 4 and end plate 6 is a stainless steel.
Described magnetic conductive material shell 5 adopts electrical pure iron or steel alloy.
The magnetic line of force can pass the non-magnetic end plate arbitrarily, magnetic conductive material then can constitute magnetic line of force passage, therefore this reality has the work magnetic field in magnetic conductor room temperature hole in novel, outside end plate, also have magnetic field, and shell adopts permeability magnetic material to form magnetic line of force passage to be used to avoid the place of the magnetic line of force beyond shell to escape.This magnet structure uses when being adapted at some and need utilizing room temperature vacuum tank end magnetic field.
Shown in Figure of description 2, outside non-magnetic end plate 6, also be mounted with one or more magnetic conductivity additional end plates 7 by bolt or dismantled and assembled structure such as screw or jig, additional end plates 7 is two among the figure.The magnetic line of force of superconducting coil outside has reduced the magnet external magnetic field and has escaped by the magnetic conductivity additional end plates 7 and the magnetic conductive material shell 5 at two ends.Be used for magnetic separator, can reduce of the influence of the outer leakage field of magnet, particularly help the ferromagnetic materials that sub-elects is removed from separation equipment separation equipment.All the other are with embodiment 1.
Non-magnetic end plate 6 is to be embedded in level inboard, hole, shell 5 one circle platform danger, makes end plate 6 surfaces not be higher than shell 5 end faces, and shell 5 end faces closely contact with additional end plates 7 surfaces like this, make additional end plates 7, shell 5 form continuous magnetic line of force passage.
The effect of the non-magnetic end plate 6 among the present invention is to form the enclosed vacuum container with inner casing 4 and shell 5, plays heat insulating function.And additional guide magnetic end plate installs by dismantled and assembled mechanisms such as bolts, being used for forming magnetic channel in the end avoids the magnetic line of force to escape, therefore can be according to the requirement that whether needs end magnetic field, select flexibly to install still not install, and do not need the vacuum tank that forms heat insulating function is changed, therefore flexible and convenient to use, and simple in structure, satisfied the requirement of different operating modes.
Claims (6)
1. general superconducting magnet system, comprise the superconducting coil that places the heat shielding cover, the heat shielding cover is contained in the room temperature vacuum tank, it is characterized in that: described room temperature vacuum tank is sealed to by the non-magnetic end plate at non-magnetic material inner, magnetic conductive material shell and two ends.
2. superconducting magnet system as claimed in claim 1 is characterized in that: described non-magnetic end plate also is mounted with one or more magnetic conductivity additional end plates with dismantled and assembled structure outward.
3. superconducting magnet system as claimed in claim 2 is characterized in that: described dismantled and assembled structure is bolt or screw or jig.
4. as described superconducting magnet system one of in the claim 1 to 3, it is characterized in that: described non-magnetic end plate is to be embedded in described shell inboard, and its surface is not higher than described shell end face.
5. superconducting magnet system as claimed in claim 4 is characterized in that: the mode by welding between described end plate and inner casing and the shell is connected.
6. as described superconducting magnet system one of in the claim 1 to 3, it is characterized in that: described non-magnetic end plate is a corrosion resistant plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010203444 CN101877268A (en) | 2010-06-13 | 2010-06-13 | General superconducting magnet system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010203444 CN101877268A (en) | 2010-06-13 | 2010-06-13 | General superconducting magnet system |
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| CN101877268A true CN101877268A (en) | 2010-11-03 |
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Family Applications (1)
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| CN 201010203444 Pending CN101877268A (en) | 2010-06-13 | 2010-06-13 | General superconducting magnet system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108861613A (en) * | 2018-06-25 | 2018-11-23 | 长沙矿冶研究院有限责任公司 | A kind of underwater magnetic force transportation system |
| CN111863373A (en) * | 2019-04-24 | 2020-10-30 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Superconducting magnet with electromagnetic protection component |
| CN111983537A (en) * | 2020-08-19 | 2020-11-24 | 深圳航天科技创新研究院 | Magnetic resonance magnet structure with separated magnetic conduction and bearing functions |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0250675A1 (en) * | 1986-06-04 | 1988-01-07 | Mitsubishi Denki Kabushiki Kaisha | Superconducting magnet |
| CN1509684A (en) * | 2002-12-23 | 2004-07-07 | ͨ�õ�����˾ | Conducting cooled passive shielded MRI magnet |
| US20050146407A1 (en) * | 2003-11-17 | 2005-07-07 | Hiroyuki Watanabe | Superconducting magnet apparatus and magnetic resonance imaging apparatus using the same |
| CN1758068A (en) * | 2004-10-04 | 2006-04-12 | 株式会社日立制作所 | Superconductive magnetic apparatus for magnetic resonance imaging unit |
| CN101728050A (en) * | 2008-10-29 | 2010-06-09 | 中国船舶重工集团公司第七研究院 | MRI superconductive magnet system |
| CN201707992U (en) * | 2010-06-13 | 2011-01-12 | 江苏旌凯中科超导高技术有限公司 | Universal superconductive magnet system |
-
2010
- 2010-06-13 CN CN 201010203444 patent/CN101877268A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0250675A1 (en) * | 1986-06-04 | 1988-01-07 | Mitsubishi Denki Kabushiki Kaisha | Superconducting magnet |
| CN1509684A (en) * | 2002-12-23 | 2004-07-07 | ͨ�õ�����˾ | Conducting cooled passive shielded MRI magnet |
| US20050146407A1 (en) * | 2003-11-17 | 2005-07-07 | Hiroyuki Watanabe | Superconducting magnet apparatus and magnetic resonance imaging apparatus using the same |
| CN1758068A (en) * | 2004-10-04 | 2006-04-12 | 株式会社日立制作所 | Superconductive magnetic apparatus for magnetic resonance imaging unit |
| CN101728050A (en) * | 2008-10-29 | 2010-06-09 | 中国船舶重工集团公司第七研究院 | MRI superconductive magnet system |
| CN201707992U (en) * | 2010-06-13 | 2011-01-12 | 江苏旌凯中科超导高技术有限公司 | Universal superconductive magnet system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108861613A (en) * | 2018-06-25 | 2018-11-23 | 长沙矿冶研究院有限责任公司 | A kind of underwater magnetic force transportation system |
| CN111863373A (en) * | 2019-04-24 | 2020-10-30 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Superconducting magnet with electromagnetic protection component |
| CN111983537A (en) * | 2020-08-19 | 2020-11-24 | 深圳航天科技创新研究院 | Magnetic resonance magnet structure with separated magnetic conduction and bearing functions |
| CN111983537B (en) * | 2020-08-19 | 2023-06-06 | 深圳航天科技创新研究院 | Magnetic resonance magnet structure with separated magnetic conduction and bearing functions |
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Open date: 20101103 |