EP1504458A1 - Dispositif de supraconductivite comportant un aimant supraconducteur et une unite de refroidissement - Google Patents

Dispositif de supraconductivite comportant un aimant supraconducteur et une unite de refroidissement

Info

Publication number
EP1504458A1
EP1504458A1 EP03752654A EP03752654A EP1504458A1 EP 1504458 A1 EP1504458 A1 EP 1504458A1 EP 03752654 A EP03752654 A EP 03752654A EP 03752654 A EP03752654 A EP 03752654A EP 1504458 A1 EP1504458 A1 EP 1504458A1
Authority
EP
European Patent Office
Prior art keywords
refrigerant
superconducting
winding
pipeline
cold head
Prior art date
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.)
Granted
Application number
EP03752654A
Other languages
German (de)
English (en)
Other versions
EP1504458B1 (fr
Inventor
Peter Van Hasselt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1504458A1 publication Critical patent/EP1504458A1/fr
Application granted granted Critical
Publication of EP1504458B1 publication Critical patent/EP1504458B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • H01F6/04—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
    • F25B23/006—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect boiling cooling systems

Definitions

  • the invention relates to a device of superconductivity technology
  • metal oxide superconductor materials have been known since 1987 with transition temperatures T c of over 77 K. The latter materials are also referred to as high (high) T c superconductor materials or HTS materials.
  • cryocoolers For cooling windings with HTS conductors, refrigeration units in the form of so-called cryocoolers with a closed helium compressed gas circuit are preferably used in the temperature range mentioned. Such cryocoolers are in particular of the Gifford-McMahon or Stirling type or are designed as so-called pulse tube coolers. Corresponding cooling units also have the advantage that the cooling capacity is available at the push of a button and the user is spared the handling of cryogenic liquids. When using such cooling units, e.g. a superconducting magnetic coil winding is only indirectly cooled by heat conduction to a cold head of a refrigerator and is therefore free of refrigerants (see also the text from ICEC 16).
  • refrigerator cooling has already been implemented using good heat-conducting connections such as, for example, in the form of possibly also flexible copper pipes between a cold head of a corresponding cooling unit and the superconducting winding of the magnet (cf. the above-mentioned literature from ICEC 16 , especially pages 1113 to 1116).
  • good heat-conducting connections such as, for example, in the form of possibly also flexible copper pipes between a cold head of a corresponding cooling unit and the superconducting winding of the magnet (cf. the above-mentioned literature from ICEC 16 , especially pages 1113 to 1116).
  • the large cross sections required for good thermal coupling then lead to a considerable increase in cold mass. This is disadvantageous in particular in the case of the spatially extended magnetic systems that are customary in MRI applications, because of the longer cooling times.
  • a line system can also be provided in which a He gas stream circulates (cf. e.g. US 5,485,730).
  • the object of the present invention is to provide a device for superconducting technology with the features mentioned at the beginning, in which the effort for cooling a superconducting winding is reduced.
  • the thermal coupling means between the at least one winding and the at least one cold head should be designed as a line system with at least one pipeline for a refrigerant circulating therein according to a thermosiphon effect.
  • a cold head is understood here to mean any cold surface of a refrigeration unit via which the refrigeration output is given directly or indirectly to the refrigerant.
  • Such a piping system has at least one closed pipeline that runs at a slope between the cold head and the superconducting winding.
  • the gradient is at least in some parts of the pipeline generally more than 0.5 °, preferably more than 1 ° with respect to the horizontal.
  • the refrigerant in this pipeline recondenses on a cold surface of the refrigeration unit or cold head and from there reaches the area of the superconducting winding, where it heats up and generally evaporates.
  • the refrigerant thus evaporated then flows back into the area within the pipeline Cold surface of the cold head.
  • the corresponding circulation of the refrigerant takes place on the basis of a so-called “thermosiphon effect *.
  • thermosiphon (as a corresponding line system is also called) for transferring the cooling capacity to the winding
  • the required circulating amount of the cryogenic refrigerant is considerably reduced compared to a bath cooling system, for example by a factor of about 100. Since also If the liquid only circulates in pipelines with comparatively small diameters, which are generally of the order of a few centimeters, the pressure build-up in a quench is technically manageable without problems.
  • the reduction in the amount of liquid refrigerant in the system especially when using helium or neon as the refrigerant, is also a significant cost advantage.
  • a thermosiphon also offers the advantage of good thermal coupling regardless of the spatial distance between the cold head and the object to be cooled.
  • the line system can have two or more pipes which are filled with different refrigerants with different condensation temperatures. Depending on the requirements of the application, this enables working temperatures to be graded accordingly, for example for pre-cooling, a quasi-continuous thermal coupling or a quasi-continuous thermal coupling through overlapping working temperature ranges of the refrigerants.
  • the subsystems can either be connected to a common cold head or be thermally coupled to separate cold heads of a refrigeration unit.
  • the superconducting magnet of the device can particularly advantageously contain a winding which has superconducting HTS material and in particular can also be kept at a temperature below 77K.
  • a device according to the invention of superconductivity technology must also be designed for LTS magnets.
  • FIG. 1 shows the cooling of an MRI magnet with two windings
  • FIG. 2 shows the cooling of another MRI magnet with four windings.
  • the superconducting technology device which is generally designated 2 in FIG. 1 and is only executed in its details that are essential to the invention, can in particular be part of an MRI magnet system.
  • Embodiments known per se with a so-called C magnet are assumed (see e.g. DE 198 13 211 C2 or
  • This system therefore contains a non-detailed, preferably superconducting magnet 3 with an upper superconducting winding 4a lying in a horizontal plane and a lower superconducting winding 4b arranged parallel thereto.
  • These windings can in particular be made with conductors made of high-T c superconductor material, such as (Bi, Pb) 2 Sr 2 Ca 2 Cu 3 O x , for reasons of a high current carrying capacity can be kept at an operating temperature below 77 K.
  • the windings have a ring shape. They are each housed in a corresponding vacuum housing, not shown.
  • the cooling capacity for cooling the windings 4a and 4b is provided by a cooling unit (not shown in detail) with at least one cold head 6 located at its cold end.
  • This cold head has a cold surface 7 to be kept at a predetermined temperature level or is thermally connected to it.
  • the interior of a condenser chamber 8 is thermally coupled to this cold surface; for example, the cold surface 7 forms a wall of this room. According to the exemplary embodiment shown, the interior of this condenser chamber 8 is divided into two compartments 9a and 9b.
  • a pipeline 10a of a pipeline system 10 is connected to the (first) subspace 9a.
  • This pipeline first leads from the part space 9a into the area of the superconducting winding 4a, where it is in good heat-conducting contact with the winding.
  • the pipeline 10a runs in spiral windings along the inside of the winding.
  • the attachment on the inside is not mandatory; it is only important that the pipeline reaches the entire circumference of the winding with a permanent slope and is thermally well coupled there to the parts to be cooled or the conductor of the winding.
  • the pipeline 10a includes at least the most essential parts with the horizontal h an incline (or inclination) angle ⁇ of more than 0.5 °, preferably more than 1 °.
  • the gradient angle ⁇ in the area of the winding 4a is approximately 3 °.
  • a first refrigerant kl for example neon (Ne)
  • Ne is located in the pipeline 10a laid with the slope.
  • the refrigerant kl circulates in the pipeline 10a including the associated subspace 9a due to a thermosiphon effect known per se.
  • the refrigerant condenses in the sub-space 9a on the cold surface 7 and reaches the area of the superconducting windings in liquid form.
  • the refrigerant heats up, for example with at least partial evaporation, and flows back in the pipeline 10a into the subspace 9a, where it is recondensed.
  • the line system 10 comprises a second pipeline 10b, which runs parallel to the first pipeline 10a and is filled with a further refrigerant k2.
  • This refrigerant is different from the first refrigerant kl, ie it has a different, preferably higher, condensation temperature.
  • nitrogen (N 2 ) is selected for the refrigerant k2.
  • the pipeline 10b is connected to the (second) sub-space 9b of the condenser chamber 8.
  • the second refrigerant k2 also circulates in the closed pipeline 10b and the sub-space 9b due to a thermosiphon effect. When the magnet windings cool down, the second refrigerant k2 is first condensed, the
  • Windings can be pre-cooled to about 70 to 80 K, for example if N 2 is used as the refrigerant k2.
  • the first refrigerant kl located in the pipeline 10a then condenses with the comparatively lower condensation temperature and thus leads to a further cooling to the intended operating temperature of, for example, 20 K (when using Ne as the first refrigerant kl).
  • the second refrigerant k2 can be frozen out at this operating temperature in the area of the partial space 9b.
  • the device 2 according to the invention for superconducting technology can of course also have only one line system with only a single pipeline.
  • thermosiphon pipeline which is filled with N 2 or Ar, for example - in addition to the thermal connection to the second stage - also connect to the first (warmer) stage.
  • thermosiphon cooling can also be used for magnets that have vertically arranged windings.
  • An embodiment of a device according to the invention with corresponding windings is indicated in Figure 2.
  • a spiral shape as in the case of the exemplary embodiment according to FIG.
  • each pipeline 15i can therefore be dispensed with here and the gradient angle in large parts of the line system generally designated by 20 is approximately 90 °.
  • a condenser chamber 18 and a cold head are generally placed above the windings to provide the required slope.
  • At least one pipeline 15i is required per winding since, in contrast to horizontally arranged windings, not one pipeline can reach all windings while maintaining the gradient.
  • the entire pipeline system 20 formed from the pipelines 15i must either be designed as a system of communicating tubes and be completely flooded with the liquid refrigerant in the area of the windings 14. This is indicated in FIG. 2 by a darker coloring of the refrigerant kl, while the evaporated refrigerant is colored lighter and labeled kl ⁇ .
  • each pipeline 15i must have a separate condenser (partial) chamber on the cold head.
  • a line system with parallel pipes filled with different refrigerants (kl or k2) can also be provided.
  • a device according to the invention for superconducting technology can have a line system with at least one pipeline, in which there is also a mixture of two refrigerants with different condensation temperatures. Then, with a gradual cooling, the gas with the highest condensation temperature can initially condense and form a closed circuit for heat transfer to a winding to be cooled. After this winding has been pre-cooled to the triple point temperature of this gas, it will then freeze out in the region of the condenser chamber, whereupon the other gas mixture component with the lower condensation temperature ensures further cooling to the operating temperature.
  • the gases He, H 2 , Ne, 0 2 , N 2 , Ar and various hydrocarbons are suitable as refrigerants.
  • the cold gas is selected in such a way that operating temperature, the refrigerant is both gaseous and liquid. This ensures circulation using a thermosiphon effect.
  • Warm and / or cold expansion tanks can be provided on the line system for targeted adjustment of the filling quantity while simultaneously limiting the system pressure.
  • refrigerant also depends on the superconductor material used. If an LTS material such as Nb 3 Sn is provided, only He can be used as a refrigerant.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

L'invention concerne un dispositif (2) contenant un aimant (3) supraconducteur doté d'au moins un enroulement (4a, 4b) supraconducteur sans réfrigérant et d'une unité de refroidissement pourvue d'au moins une tête froide (6). Le couplage thermique de l'enroulement (4a, 4b) sur la tête froide (6) est assuré par un système de conduits (10) composé d'au moins une conduite tubulaire (10a, 10b) pour un réfrigérant (k1, k2) circulant selon le principe du thermosiphon.
EP03752654A 2002-05-15 2003-04-29 Dispositif de supraconductivite comportant un aimant supraconducteur et une unite de refroidissement Expired - Lifetime EP1504458B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10221639A DE10221639B4 (de) 2002-05-15 2002-05-15 Einrichtung der Supraleitungstechnik mit einem supraleitenden Magneten und einer Kälteeinheit
DE10221639 2002-05-15
PCT/DE2003/001378 WO2003098645A1 (fr) 2002-05-15 2003-04-29 Dispositif de supraconductivite comportant un aimant supraconducteur et une unite de refroidissement

Publications (2)

Publication Number Publication Date
EP1504458A1 true EP1504458A1 (fr) 2005-02-09
EP1504458B1 EP1504458B1 (fr) 2007-07-18

Family

ID=29285434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03752654A Expired - Lifetime EP1504458B1 (fr) 2002-05-15 2003-04-29 Dispositif de supraconductivite comportant un aimant supraconducteur et une unite de refroidissement

Country Status (6)

Country Link
US (1) US7260941B2 (fr)
EP (1) EP1504458B1 (fr)
JP (1) JP4417247B2 (fr)
CN (1) CN100354992C (fr)
DE (2) DE10221639B4 (fr)
WO (1) WO2003098645A1 (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057204B4 (de) * 2004-11-26 2012-06-14 Siemens Ag Supraleitungseinrichtung mit Kryosystem und supraleitendem Schalter
DE102004058006B3 (de) 2004-12-01 2006-06-08 Siemens Ag Supraleitungseinrichtung mit Kryosystem und supraleitendem Schalter
DE102005028414B4 (de) * 2005-06-20 2011-12-08 Siemens Aktiengesellschaft Einrichtung zur Erzeugung eines gepulsten Magnetfelds
US7053740B1 (en) * 2005-07-15 2006-05-30 General Electric Company Low field loss cold mass structure for superconducting magnets
US7626477B2 (en) * 2005-11-28 2009-12-01 General Electric Company Cold mass cryogenic cooling circuit inlet path avoidance of direct conductive thermal engagement with substantially conductive coupler for superconducting magnet
CN101236239B (zh) * 2007-01-30 2012-01-25 西门子（中国）有限公司 磁共振系统的超导磁体的电流引线
US20080209919A1 (en) * 2007-03-01 2008-09-04 Philips Medical Systems Mr, Inc. System including a heat exchanger with different cryogenic fluids therein and method of using the same
CN101299060B (zh) * 2007-04-30 2011-04-06 西门子（中国）有限公司 一种磁共振成像系统的通风方法及通风系统
US7449889B1 (en) * 2007-06-25 2008-11-11 General Electric Company Heat pipe cooled superconducting magnets with ceramic coil forms
US7477055B1 (en) * 2007-08-21 2009-01-13 General Electric Company Apparatus and method for coupling coils in a superconducting magnet
US7772842B2 (en) * 2008-09-17 2010-08-10 Time Medical Holdings Company Limited Dedicated superconductor MRI imaging system
US7728592B2 (en) * 2008-09-17 2010-06-01 Time Medical Holdings Company Limited Integrated superconductor MRI imaging system
US8238988B2 (en) * 2009-03-31 2012-08-07 General Electric Company Apparatus and method for cooling a superconducting magnetic assembly
US20100242502A1 (en) * 2009-03-31 2010-09-30 General Electric Company Apparatus and method of superconducting magnet cooling
JP5450224B2 (ja) * 2009-05-29 2014-03-26 株式会社東芝 磁気共鳴イメージング装置
CN102054554B (zh) * 2009-10-30 2015-07-08 通用电气公司 超导磁体的制冷系统和制冷方法
US8676282B2 (en) * 2010-10-29 2014-03-18 General Electric Company Superconducting magnet coil support with cooling and method for coil-cooling
US8332004B2 (en) 2010-12-23 2012-12-11 General Electric Company System and method for magnetization of rare-earth permanent magnets
CN102110510B (zh) * 2010-12-24 2012-07-04 中国科学院深圳先进技术研究院 磁共振成像系统的线圈、线圈的冷却装置及方法
DE102011005685A1 (de) * 2011-03-17 2012-09-20 Siemens Aktiengesellschaft Vorrichtung zur Kühlung eines Bulk-Supraleiters oder einer supraleitenden Spule einer Magnetresonanzeinrichtung, Magnetresonanzeinrichtung und Magnetlager
JP5852425B2 (ja) 2011-12-01 2016-02-03 株式会社日立製作所 超電導電磁石装置、その冷却方法、および磁気共鳴イメージング装置
US9570220B2 (en) * 2012-10-08 2017-02-14 General Electric Company Remote actuated cryocooler for superconducting generator and method of assembling the same
US10224799B2 (en) * 2012-10-08 2019-03-05 General Electric Company Cooling assembly for electrical machines and methods of assembling the same
DE102014224363A1 (de) * 2014-11-28 2016-06-02 Siemens Aktiengesellschaft Vorrichtung der Supraleitungstechnik mitSpuleneinrichtungen und Kühlvorrichtung sowie damitausgestattetes Fahrzeug
US20160262284A1 (en) * 2015-03-03 2016-09-08 Asia Vital Components (China) Co., Ltd. Cold plate structure
US11187381B2 (en) 2017-09-29 2021-11-30 Shanghai United Imaging Healthcare Co., Ltd. Cryostat devices for magnetic resonance imaging and methods for making
CN107991635B (zh) * 2017-11-24 2021-03-19 上海联影医疗科技股份有限公司 一种用于磁共振系统的冷却组件及磁共振系统
JP6556414B1 (ja) * 2018-04-09 2019-08-07 三菱電機株式会社 超電導磁石装置
WO2019198266A1 (fr) * 2018-04-09 2019-10-17 三菱電機株式会社 Dispositif à aimant supraconducteur
JP2020180728A (ja) * 2019-04-24 2020-11-05 株式会社デンソー 機器温調装置
CN110600220A (zh) * 2019-09-04 2019-12-20 中国科学院合肥物质科学研究院 一种用于超导磁体的双回路低温系统

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146998A (en) * 1977-02-16 1979-04-03 Teco, Inc. Position responsive valve for controlling the retraction rate of a lower boom in an articulated boom assembly
DE3015682A1 (de) * 1980-04-23 1981-10-29 Siemens AG, 1000 Berlin und 8000 München Anordnung zur kuehlung einer supraleitenden magnetwicklung
JPS5862055U (ja) 1981-10-21 1983-04-26 松下電器産業株式会社 太陽熱集熱器のヒ−トパイプ
JPS6171608A (ja) * 1984-09-17 1986-04-12 Toshiba Corp 超電導装置
FR2578638B1 (fr) * 1985-03-08 1989-08-18 Inst Francais Du Petrole Procede de transfert de chaleur d'un fluide chaud a un fluide froid utilisant un fluide mixte comme agent caloporteur
JPS62166473A (ja) 1986-01-20 1987-07-22 Hitachi Ltd 陰影図形発生装置
JPS63129280A (ja) * 1986-11-18 1988-06-01 株式会社東芝 ヘリウム冷却装置
US4995450A (en) * 1989-08-18 1991-02-26 G.P. Industries, Inc. Heat pipe
US5070702A (en) * 1990-05-07 1991-12-10 Jackson Henry W Continuously operating 3 HE evaporation refrigerator for space flight
US5193349A (en) * 1991-08-05 1993-03-16 Chicago Bridge & Iron Technical Services Company Method and apparatus for cooling high temperature superconductors with neon-nitrogen mixtures
EP0616230B1 (fr) 1993-03-15 1998-08-05 Siemens Aktiengesellschaft Aimant pour champ homogène avec un arrangement de disques polaires séparés par des espaces d'air de correction pour chaque pièce polaire
JPH06342721A (ja) * 1993-05-31 1994-12-13 Tokin Corp 超電導マグネット装置
US5485730A (en) * 1994-08-10 1996-01-23 General Electric Company Remote cooling system for a superconducting magnet
JP3423514B2 (ja) * 1995-11-30 2003-07-07 アネスト岩田株式会社 スクロール流体機械
DE19813211C2 (de) 1998-03-25 2000-05-18 Siemens Ag Supraleitende Einrichtung mit Leitern aus Hoch-T¶c¶-Supraleitermaterial
US6376943B1 (en) * 1998-08-26 2002-04-23 American Superconductor Corporation Superconductor rotor cooling system
US6181228B1 (en) * 1999-11-09 2001-01-30 General Electric Company Superconductive magnet including a cryocooler coldhead
DE10018169C5 (de) * 2000-04-12 2005-07-21 Siemens Ag Vorrichtung zur Kühlung mindestens eines elektrischen Betriebselements in mindestens einem Kryostaten
DE10039964A1 (de) * 2000-08-16 2002-03-07 Siemens Ag Supraleitungseinrichtung mit einer Kälteeinheit zur Kühlung einer rotierenden, supraleitenden Wicklung
DE10057664A1 (de) * 2000-11-21 2002-05-29 Siemens Ag Supraleitungseinrichtung mit einem thermisch an eine rotierende,supraleitende Wicklung angekoppelten Kaltkopf einer Kälteeinheit
US6783059B2 (en) * 2002-12-23 2004-08-31 General Electric Company Conduction cooled passively-shielded MRI magnet

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03098645A1 *

Also Published As

Publication number Publication date
CN100354992C (zh) 2007-12-12
WO2003098645A1 (fr) 2003-11-27
DE50307708D1 (de) 2007-08-30
DE10221639A1 (de) 2003-11-27
DE10221639B4 (de) 2004-06-03
EP1504458B1 (fr) 2007-07-18
US20050252219A1 (en) 2005-11-17
CN1653564A (zh) 2005-08-10
JP4417247B2 (ja) 2010-02-17
JP2005530976A (ja) 2005-10-13
US7260941B2 (en) 2007-08-28

Similar Documents

Publication Publication Date Title
EP1504458B1 (fr) Dispositif de supraconductivite comportant un aimant supraconducteur et une unite de refroidissement
DE102004061869B4 (de) Einrichtung der Supraleitungstechnik und Magnetresonanzgerät
EP2066991B1 (fr) Installation frigorifique comportant un élément de raccordement chaud et un élément de raccordement froid, ainsi qu'un tube échangeur de chaleur relié à ces éléments de raccordement
DE19648253C2 (de) Pulsröhrenkühler und Verwendung desselben
DE69838866T2 (de) Verbesserungen in oder mit Bezug auf Kryostatsystemen
EP1336236B1 (fr) Dispositif supraconducteur muni d'une tete de refroidissement d'une unite de refroidissement, thermiquement couplee a un enroulement supraconducteur rotatif
DE19914778B4 (de) Supraleitende Magnetvorrichtung
EP1655616B1 (fr) Spectromètre à RMN avec refroidissement par réfrigérateur
DE112011100875T5 (de) Verfahren und Vorrichtung zum Regeln der Temperatur in einem auf tiefe Temperaturen gekühlten Kyrostaten unter Verwendung von stehendem und sich bewegendem Gas
DE102016214731B3 (de) NMR-Apparatur mit supraleitender Magnetanordnung sowie gekühlten Probenkopfkomponenten
DE102007013350B4 (de) Stromzuführung mit Hochtemperatursupraleitern für supraleitende Magnete in einem Kryostaten
DE102005028414B4 (de) Einrichtung zur Erzeugung eines gepulsten Magnetfelds
EP1504516B1 (fr) Dispositif de supraconductivite a unite de refroidissement dotee d'une tete de refroidissement thermiquement couplee a une bobine supraconductrice rotative
DE19704485C2 (de) Stromzuführungsvorrichtung für eine gekühlte elektrische Einrichtung
DE10211568B4 (de) Kälteanlage für zu kühlende Teile einer Einrichtung
EP3467852A1 (fr) Dispositif magnétique pourvu de cryostat et de système de bobines magnétiques, d'accumulateurs de froid sur les alimentations en courant
EP0789368B1 (fr) Installation supraconductrice avec un dispositif supraconducteur à refroidir indirectement et un système d'amenée de courant
DE102006012511B3 (de) Kryostat mit einem Magnetspulensystem, das eine unterkühlte LTS- und eine in einem separaten Heliumtank angeordnete HTS-Sektion umfasst
DE102006059139A1 (de) Kälteanlage mit einem warmen und einem kalten Verbindungselement und einem mit den Verbindungselementen verbundenen Wärmerohr
DE19813211C2 (de) Supraleitende Einrichtung mit Leitern aus Hoch-T¶c¶-Supraleitermaterial
DE102005002361B3 (de) Kälteanlage eines Gerätes der Supraleitungstechnik mit mehreren Kaltköpfen
DE4223145C2 (de) Stromzuführungsvorrichtung für eine auf Tieftemperatur zu haltende, insbesondere supraleitende Einrichtung
DE102015202638A1 (de) Stromzuführung für eine supraleitende Spuleneinrichtung
DE10211363A1 (de) Supraleitungseinrichtung mit einem thermisch an eine rotierende, supraleitende Wicklung angekoppelten Kaltkopf einer Kälteeinheit mit Thermosyphoneffekt
DE19938985A1 (de) Einrichtung der Supraleitungstechnik mit einer rotierenden, supraleitenden Wicklung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20041021

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

RBV Designated contracting states (corrected)

Designated state(s): DE FI FR GB IT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FI FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20070718

REF Corresponds to:

Ref document number: 50307708

Country of ref document: DE

Date of ref document: 20070830

Kind code of ref document: P

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20080421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081101

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20090407

Year of fee payment: 7

Ref country code: FR

Payment date: 20090424

Year of fee payment: 7

Ref country code: IT

Payment date: 20090428

Year of fee payment: 7

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20101230

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100429

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100429

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100430

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20190402

Year of fee payment: 17

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200429

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200429