EP1504458B1 - Einrichtung der supraleitungstechnik mit einem supraleitenden magneten und einer kälteeinheit - Google Patents

Einrichtung der supraleitungstechnik mit einem supraleitenden magneten und einer kälteeinheit Download PDF

Info

Publication number
EP1504458B1
EP1504458B1 EP03752654A EP03752654A EP1504458B1 EP 1504458 B1 EP1504458 B1 EP 1504458B1 EP 03752654 A EP03752654 A EP 03752654A EP 03752654 A EP03752654 A EP 03752654A EP 1504458 B1 EP1504458 B1 EP 1504458B1
Authority
EP
European Patent Office
Prior art keywords
refrigerant
superconducting
winding
cooling
pipeline
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.)
Expired - Lifetime
Application number
EP03752654A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1504458A1 (de
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
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Publication of EP1504458A1 publication Critical patent/EP1504458A1/de
Application granted granted Critical
Publication of EP1504458B1 publication Critical patent/EP1504458B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

  • cooling units in the form of so-called cryocoolers with closed helium compressed gas circulation are preferably used in said temperature range.
  • cryocoolers are in particular of the Gifford-McMahon or Stirling type or are designed as so-called pulse tube coolers.
  • Corresponding refrigeration units also have the advantage that the cooling capacity is virtually available at the push of a button and the user is spared the handling of cryogenic liquids.
  • a superconducting magnetic coil winding is indirectly cooled only by heat conduction to a cold head of a refrigerator, so it is free of refrigerant.
  • Corresponding devices of the superconducting technique go, for example, " Proc. 16th Int. Cryog. Engng. Conf. [ICEC 16] ", Kitakyushu, JP, 20-24 / 05/1996, Elsevier Science, 1997, pages 1109-1132 out.
  • refrigerator cooling has already been realized using good heat-conducting connections, for example in the form of possibly also flexibly designed Cu tubes, between a cold head of a corresponding refrigeration unit and the superconducting winding of the magnet (cf. Reference from ICEC 16, in particular pages 1113 to 1116 ).
  • good heat-conducting connections for example in the form of possibly also flexibly designed Cu tubes, between a cold head of a corresponding refrigeration unit and the superconducting winding of the magnet (cf. Reference from ICEC 16, in particular pages 1113 to 1116 ).
  • the large cross sections required for good thermal coupling lead to a considerable increase in cold mass.
  • this is due to the extended cooling times of disadvantage.
  • thermal coupling of the at least one winding to the at least one cold head via thermally conductive solids may also be provided a conduit system in which a He gas stream circulates (see, eg US 5,485,730 ).
  • Object of the present invention is to provide a device of the superconducting technique with the features mentioned, in which the cost of cooling a superconducting winding is reduced.
  • the refrigeration unit should have at least one cold head and should the at least one pipeline with a refrigerant receiving cross-section be completed by less than 10 cm 2 at its end.
  • a cold head means any cold surface of a refrigeration unit via which the refrigerating capacity is discharged directly or indirectly to the refrigerant.
  • a corresponding line system has at least one closed pipe which runs between the cold head and the superconducting winding with a gradient.
  • the gradient is at least in some parts of the pipeline generally more than 0.5 °, preferably more than 1 ° relative to the horizontal.
  • the refrigerant present in this pipeline recondenses on a cold surface of the refrigeration unit or the cold head and from there into the region of the superconducting winding, where it heats up and generally evaporates.
  • the refrigerant thus evaporated then flows within the pipe back into the area of the cold surface of the cold head.
  • the piping system thus represents a so-called single-tube thermosyphon, in which the circulation of the refrigerant takes place due to the so-called "thermosiphon effect". It is assumed that even with small pipe cross-sections of less than 10 cm 2, such a circulation is possible.
  • thermosiphon for transmitting the cooling capacity to the winding, the required circulating amount of cryogenic refrigerant is significantly reduced compared to a bath cooling, for example, by a factor of about 100. Furthermore, since the liquid only in pipelines with relatively small diameters, the are generally on the order of a few centimeters, circulates, the pressure build-up in a quench case without problems is technically manageable. Besides the safety aspects, reducing the amount of liquid refrigerant in the system, especially when using helium or neon as a refrigerant, is also a significant cost advantage. Compared to cooling with heat-conducting connection bodies, a thermosiphon also offers the advantage of a good thermal coupling regardless of the spatial distance between the cold head and the object to be cooled.
  • the piping system may in particular comprise two or more pipes which are filled with different refrigerants having different condensation temperatures.
  • the subsystems can either to a common cold head or be thermally coupled to separate cold heads of a refrigeration unit.
  • the superconducting magnet of the device may include a winding which has superconducting HTS material and in particular is also to be kept at a temperature below 77 K.
  • a device according to the invention of superconducting technology should also be designed for LTS magnets.
  • this system includes an unspecified, preferably superconducting magnet 3 with an upper, lying in a horizontal plane superconducting winding 4a and a parallel arranged lower superconducting winding 4b.
  • windings may in particular be made with conductors of high-T c superconducting material such as (Bi, Pb) 2 Sr 2 Ca 2 CU 3 O x , which, for the sake of a high current carrying capacity can be maintained 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 refrigeration 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 held at a predetermined temperature level or is thermally connected thereto.
  • the interior of a condenser chamber 8 is thermally coupled to this cold surface;
  • the cold surface 7 forms a wall of this space.
  • the interior of this condenser chamber 8 is divided into two subspaces 9a and 9b. To the (first) subspace 9a, a pipe 10a of a piping system 10 is connected.
  • This pipeline first leads from the subspace 9a into the region of the superconducting winding 4a, where it is in good heat-conducting contact with the winding.
  • the tubing 10a spirals along the inside of the coil.
  • the attachment on the inside is not mandatory; It is only important that the pipeline with a permanent gradient reaches the entire circumference of the winding and is thermally coupled there well to the parts or conductors of the winding to be cooled.
  • the pipe 10a includes, at least with its most substantial parts with the horizontal h, a gradient (or inclination) angle ⁇ of more than 0.5 °, preferably more than 1 °.
  • the angle of inclination ⁇ in the region of the winding 4a is about 3 °.
  • the pipe 10a then leads into the region of the lower winding 4b, where it is arranged in a corresponding manner. It is completed at its end 11.
  • the refrigerant k1 receiving cross-section q of the pipe 10a can be advantageously kept small and in particular below 10 cm 2 . In the illustrated embodiment, q is about 2 cm 2 .
  • a first refrigerant k1 for example neon (Ne).
  • the refrigerant k1 circulates in the pipeline 10a including the associated subspace 9a due to a known thermosiphon effect.
  • the refrigerant condenses in the subspace 9a on the cold surface 7 and reaches the area of the superconducting windings in liquid form.
  • the refrigerant is heated, for example under at least partial evaporation, and flows in the pipe 10a back into the subspace 9a, where it is recondensed.
  • the piping system 10 comprises a second pipeline 10b, which leads parallel to the first pipeline 10a and is filled with a further refrigerant k2.
  • This refrigerant is different from the first refrigerant k1, that is, it has another, preferably higher, condensation temperature.
  • nitrogen (N 2 ) is selected for the refrigerant k2.
  • the pipeline 10b is connected to the (second) subspace 9b of the condenser chamber 8.
  • the second refrigerant k2 also circulates due to a thermosiphon effect in the closed pipe 10b and the subspace 9b.
  • the second refrigerant k2 is then condensed first, wherein the windings can be pre-cooled to about 70 to 80 K, for example in the case of using N 2 as the refrigerant k2.
  • the cold surface 7 With further cooling of the cold surface 7 then condenses the first, located in the pipe 10a refrigerant k1 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 k1).
  • the second refrigerant k2 may be frozen out at this operating temperature in the region of the subspace 9b.
  • the device 2 of the superconducting technique according to the invention may of course also have only one line system with only a single pipe. If one considers a larger number of pipelines, several pipelines can also be thermally coupled to separate cold heads or to stages of a refrigeration unit lying at different temperature levels. In two-stage refrigeration units or cold heads, as they are planned in particular for the cooling of thermal shields, one would for a faster pre-cooling with another thermosiphon pipe, which is filled for example with N 2 or Ar, the magnet windings - in addition to the thermal connection to the second stage - also connect to the first (warmer) stage.
  • thermosiphon cooling is also applicable to magnets having vertically arranged windings.
  • An embodiment of a device according to the invention with corresponding windings is indicated in Figure 2.
  • the gradient angle ⁇ is in large parts of the generally designated 20 line system about 90 °.
  • a condenser chamber 18 and a cold head are generally placed above the windings so as to ensure the required slope.
  • Per winding at least one pipe 15i is required because, in contrast to horizontally arranged windings not a pipe can reach all windings while maintaining the slope.
  • each pipe 15i receives sufficient recondensed refrigerant k1
  • the entire pipe system 20 formed from the pipes 15i must either be designed as a system of communicating pipes and be completely flooded with the liquid refrigerant in the area of the windings 14j. This is indicated in the figure 2 by a blackening coloring of the refrigerant k1, while the evaporated refrigerant is colored lighter and designated k1 '.
  • each pipe 15i must have a separate condenser (part) chamber on the cold head.
  • an inventive device of the superconducting technique may comprise a conduit system with at least one pipe, 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 condense and then form a closed circuit for heat transfer to a winding to be cooled. After a pre-cooling of this winding to the triple point temperature of this gas, this will then freeze 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, O 2 , N 2 , Ar and various hydrocarbons come as a refrigerant depending on the desired operating temperature in question.
  • the selection of the respective cold gas is carried out so that at the intended operating temperature the refrigerant is simultaneously gaseous and liquid. In this way, a circulation is to be ensured by utilizing a thermosiphon effect.
  • warm and / or cold reservoirs can be provided on the line system.
  • refrigerant also depends on the superconductor material used. If an LTS material such as Nb 3 Sn is provided, only He as a refrigerant in question.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Power Engineering (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
EP03752654A 2002-05-15 2003-04-29 Einrichtung der supraleitungstechnik mit einem supraleitenden magneten und einer kälteeinheit Expired - Lifetime EP1504458B1 (de)

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 (de) 2002-05-15 2003-04-29 Einrichtung der supraleitungstechnik mit einem supraleitenden magneten und einer kälteeinheit

Publications (2)

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

Family

ID=29285434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03752654A Expired - Lifetime EP1504458B1 (de) 2002-05-15 2003-04-29 Einrichtung der supraleitungstechnik mit einem supraleitenden magneten und einer kälteeinheit

Country Status (6)

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

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
US7728592B2 (en) * 2008-09-17 2010-06-01 Time Medical Holdings Company Limited Integrated superconductor MRI imaging system
US7772842B2 (en) * 2008-09-17 2010-08-10 Time Medical Holdings Company Limited Dedicated superconductor MRI imaging system
US20100242502A1 (en) * 2009-03-31 2010-09-30 General Electric Company Apparatus and method of superconducting magnet cooling
US8238988B2 (en) * 2009-03-31 2012-08-07 General Electric Company Apparatus and method for cooling a superconducting magnetic assembly
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
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
US11187381B2 (en) 2017-09-29 2021-11-30 Shanghai United Imaging Healthcare Co., Ltd. Cryostat devices for magnetic resonance imaging and methods for making
WO2019198266A1 (ja) * 2018-04-09 2019-10-17 三菱電機株式会社 超電導磁石装置
JP6556414B1 (ja) * 2018-04-09 2019-08-07 三菱電機株式会社 超電導磁石装置
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 (de) 1993-03-15 1998-08-05 Siemens Aktiengesellschaft Homogenfeldmagnet mit über Korrekturluftspalte beabstandeten Polplatteneinrichtungen seiner Polschuhe
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
None *

Also Published As

Publication number Publication date
US20050252219A1 (en) 2005-11-17
CN100354992C (zh) 2007-12-12
JP4417247B2 (ja) 2010-02-17
WO2003098645A1 (de) 2003-11-27
US7260941B2 (en) 2007-08-28
DE10221639A1 (de) 2003-11-27
DE50307708D1 (de) 2007-08-30
CN1653564A (zh) 2005-08-10
DE10221639B4 (de) 2004-06-03
EP1504458A1 (de) 2005-02-09
JP2005530976A (ja) 2005-10-13

Similar Documents

Publication Publication Date Title
EP1504458B1 (de) Einrichtung der supraleitungstechnik mit einem supraleitenden magneten und einer kälteeinheit
DE69838866T2 (de) Verbesserungen in oder mit Bezug auf Kryostatsystemen
DE19648253C2 (de) Pulsröhrenkühler und Verwendung desselben
EP1655616B1 (de) NMR-Spektrometer mit Refrigeratorkühlung
DE102004060832B3 (de) NMR-Spektrometer mit gemeinsamen Refrigerator zum Kühlen von NMR-Probenkopf und Kryostat
DE102004061869B4 (de) Einrichtung der Supraleitungstechnik und Magnetresonanzgerät
DE102005028414B4 (de) Einrichtung zur Erzeugung eines gepulsten Magnetfelds
DE102004053972B3 (de) NMR-Spektrometer mit gemeinsamen Refrigerator zum Kühlen von NMR-Probenkopf und Kryostat
DE102005041383B4 (de) NMR-Apparatur mit gemeinsam gekühltem Probenkopf und Kryobehälter und Verfahren zum Betrieb derselben
WO2008040609A1 (de) Kälteanlage mit einem warmen und einem kalten verbindungselement und einem mit den verbindungselementen verbundenen wärmerohr
DE102011078608B4 (de) Kryostatanordnung
DE112011100875T5 (de) Verfahren und Vorrichtung zum Regeln der Temperatur in einem auf tiefe Temperaturen gekühlten Kyrostaten unter Verwendung von stehendem und sich bewegendem Gas
EP3282270B1 (de) Nmr-apparatur mit supraleitender magnetanordnung sowie gekühlten probenkopfkomponentten
EP1336236A1 (de) Supraleitungseinrichtung mit einem thermisch an eine rotierende, supraleitende wicklung angekoppelten kaltkopf einer kälteeinheit
DE19938986B4 (de) Supraleitungseinrichtung mit einer Kälteeinheit für eine rotierende, supraleitende Wicklung
EP1504516B1 (de) Supraleitungseinrichtung mit thermisch an eine rotierende supraleitende wicklung angekoppeltem kaltkopf einer kälteeinheit
EP0463481B1 (de) Einrichtung zur Kühlung einer SQUID-Messvorrichtung
DE19704485C2 (de) Stromzuführungsvorrichtung für eine gekühlte elektrische Einrichtung
DE102004058006B3 (de) Supraleitungseinrichtung mit Kryosystem und supraleitendem Schalter
EP3244137B1 (de) Kryostatanordnung
DE10211568B4 (de) Kälteanlage für zu kühlende Teile einer Einrichtung
DE102005002361B3 (de) Kälteanlage eines Gerätes der Supraleitungstechnik mit mehreren Kaltköpfen
EP3467852B1 (de) Magnetanordnung mit kryostat und magnetspulensystem, mit kältespeichern an den stromzuführungen
DE102015202638A1 (de) Stromzuführung für eine supraleitende Spuleneinrichtung
DE102006035093B3 (de) Kühlvorrichtung eines Systems aus mindestens zwei Magneten

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