EP0144873A2 - Système de refroidissement pour aimants supra-conducteurs refroidis indirectement - Google Patents

Système de refroidissement pour aimants supra-conducteurs refroidis indirectement Download PDF

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Publication number
EP0144873A2
EP0144873A2 EP84114197A EP84114197A EP0144873A2 EP 0144873 A2 EP0144873 A2 EP 0144873A2 EP 84114197 A EP84114197 A EP 84114197A EP 84114197 A EP84114197 A EP 84114197A EP 0144873 A2 EP0144873 A2 EP 0144873A2
Authority
EP
European Patent Office
Prior art keywords
helium
cooling
storage vessel
cooling system
winding
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
EP84114197A
Other languages
German (de)
English (en)
Other versions
EP0144873B1 (fr
EP0144873A3 (en
Inventor
Cord-Henrich Dr. Dipl.-Phys. Dustmann
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.)
BBC Brown Boveri AG Germany
Original Assignee
Brown Boveri und Cie AG Germany
BBC Brown Boveri AG Germany
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6216165&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0144873(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Brown Boveri und Cie AG Germany, BBC Brown Boveri AG Germany filed Critical Brown Boveri und Cie AG Germany
Publication of EP0144873A2 publication Critical patent/EP0144873A2/fr
Publication of EP0144873A3 publication Critical patent/EP0144873A3/de
Application granted granted Critical
Publication of EP0144873B1 publication Critical patent/EP0144873B1/fr
Expired legal-status Critical Current

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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/825—Apparatus per se, device per se, or process of making or operating same
    • Y10S505/888—Refrigeration
    • Y10S505/892—Magnetic device cooling

Definitions

  • the invention relates to a cooling system for indirectly cooled superconducting magnets with cooling channels through which liquid helium flows and which are in close thermal contact with the superconducting winding.
  • Indirectly cooled magnets have cooling coils through which liquid helium is pressed. This is no problem when using supercritical helium. However, a pump is required to push the liquid helium through the cooling coils. If the cooling coils are connected to a refrigeration system, the pump can be part of the refrigeration system. However, if the helium is removed from a storage vessel, a separate helium pump is required.
  • the object of the invention is to provide adespstem for indirectly cooled superconducting magnets, allows weleches Eipe convection and the input S-mentioned disadvantages are avoided.
  • a winding body for the superconducting winding has a lower supply channel and an upper collecting channel parallel to the horizontal magnetic axis and parallel cooling channels that connect the supply channel and the collecting channel with each other, and that the supply channel with the outflow of a compared to the winding body, the helium vessel is arranged in a higher position.
  • Flow line is connected, and the collecting duct is connected via a return line to a connecting piece of the helium vessel.
  • the liquid helium can flow through the outflow of the helium vessel into the lower feed channel and from there rises in parallel through the cooling channels into the upper collecting channel.
  • the helium which in the meantime has been heated and can be in the vapor phase, is passed into the return line, which directs the helium above the helium level back into the helium storage vessel. No pump is required for the helium circulation, it is done by convection.
  • the winding body can advantageously be produced by roller seam welding and inflating the cooling channels, care being taken to ensure that the curvature of the inflated cooling channels faces away from the winding he follows. This enables inexpensive production with high quality.
  • the winding body can be made of austenitic steel or aluminum, the latter material increasing the quench security according to the "quench bare" principle.
  • An advantageous embodiment of the invention provides that the end of the cold head of a mini-refrigerator, which works according to the Gifford-McMahon principle, for example, protrudes into the helium storage vessel.
  • the temperature of the cold head end is 4.2 K or below.
  • the end of the cold head protrudes into the gas space of the helium storage vessel and recondenses the helium gas flowing back through the return.
  • the invention provides in an expedient embodiment that the helium storage vessel has a connecting flange for a helium lifter, which can be arranged above the outflow.
  • the helium lifter is pushed through the connecting flange until it partially protrudes into the supply line and is screwed in.
  • the other end of the helium lifter protrudes into a helium can. So much helium is passed from the helium can into the helium storage container and the winding former until these have cooled and are filled to a certain height.
  • the helium storage vessel also contains a closable opening through which the still warm, gaseous helium can escape.
  • FIG. 1 shows a cylindrical winding body 10, in whose cooling surface cooling channels are embedded.
  • a feed channel 11 runs axially in the lower area of the winding body 10 and a collecting channel 12 runs axially in the upper area of the winding body 10.
  • Such a winding body 10 can be produced by roller seam welding and subsequent inflation of the cooling channels.
  • the lower feed channel 11 is connected to the bottom outlet 15 of a helium storage vessel 16 via a feed line 14.
  • the liquid helium can be conducted from the helium storage vessel 16 into the cooling channels 13 through these lines.
  • the heated helium (in the liquid or gaseous phase) is collected via the upper collecting channel 12 and reaches the upper region of the helium storage vessel 16 via the return 17.
  • the helium level 18 in the storage vessel 16 lies below the return inlet.
  • the end 20 of the cold head 22 has a sufficiently low temperature to condense the gaseous helium back.
  • the helium storage vessel 16 has a connecting flange 23 through which a helium lifter 24 is inserted.
  • the connecting flange 23 lies above the bottom outlet 15. For a first filling of the system, the helium lifter 24 is pushed into the feed line 14 and screwed.
  • FIG. 2 shows the cross section of a magnetic winding 25 with a cooling and vacuum system.
  • the magnet winding 25 is arranged concentrically around an examination opening 26 and consists of superconducting wire.
  • the superconducting winding 25 is applied to a winding body 10 which is designed according to FIG. 1.
  • the supply duct 11, the collecting duct 12 and two cooling ducts 13 can be seen in FIG.
  • Magnet winding 25 and coil carrier 10 are shielded on all sides by cold shields 27, 28.
  • the entire system is housed in a vacuum container consisting of an inner jacket 29 and an outer jacket 30.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)
EP84114197A 1983-12-06 1984-11-23 Système de refroidissement pour aimants supra-conducteurs refroidis indirectement Expired EP0144873B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3344046 1983-12-06
DE19833344046 DE3344046A1 (de) 1983-12-06 1983-12-06 Kuehlsystem fuer indirekt gekuehlte supraleitende magnete

Publications (3)

Publication Number Publication Date
EP0144873A2 true EP0144873A2 (fr) 1985-06-19
EP0144873A3 EP0144873A3 (en) 1986-02-12
EP0144873B1 EP0144873B1 (fr) 1988-01-27

Family

ID=6216165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114197A Expired EP0144873B1 (fr) 1983-12-06 1984-11-23 Système de refroidissement pour aimants supra-conducteurs refroidis indirectement

Country Status (3)

Country Link
US (1) US4578962A (fr)
EP (1) EP0144873B1 (fr)
DE (2) DE3344046A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175495A2 (fr) * 1984-09-17 1986-03-26 Kabushiki Kaisha Toshiba Appareil supraconducteur
EP2390884A3 (fr) * 2010-05-25 2012-08-29 General Electric Company Dispositif de magnétisation supraconducteur
US9623215B2 (en) 2012-06-01 2017-04-18 Surmodics, Inc. Apparatus and methods for coating medical devices
US9827401B2 (en) 2012-06-01 2017-11-28 Surmodics, Inc. Apparatus and methods for coating medical devices
US11090468B2 (en) 2012-10-25 2021-08-17 Surmodics, Inc. Apparatus and methods for coating medical devices
US11628466B2 (en) 2018-11-29 2023-04-18 Surmodics, Inc. Apparatus and methods for coating medical devices
US11819590B2 (en) 2019-05-13 2023-11-21 Surmodics, Inc. Apparatus and methods for coating medical devices

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FR2589646B1 (fr) * 1985-10-30 1987-12-11 Alsthom Machine synchrone a enroulements stator et rotor supraconducteurs
US4924198A (en) * 1988-07-05 1990-05-08 General Electric Company Superconductive magnetic resonance magnet without cryogens
US4969064A (en) * 1989-02-17 1990-11-06 Albert Shadowitz Apparatus with superconductors for producing intense magnetic fields
JPH0442977A (ja) * 1990-06-07 1992-02-13 Toshiba Corp 超電導磁石装置
US5402648A (en) * 1993-07-01 1995-04-04 Apd Cryogenics Inc. Sealed dewar with separate circulation loop for external cooling at constant pressure
US5461873A (en) * 1993-09-23 1995-10-31 Apd Cryogenics Inc. Means and apparatus for convectively cooling a superconducting magnet
US5613367A (en) * 1995-12-28 1997-03-25 General Electric Company Cryogen recondensing superconducting magnet
WO2000020795A2 (fr) * 1998-09-14 2000-04-13 Massachusetts Institute Of Technology Appareils supraconducteurs et procedes de refroidissement
DE10020264C1 (de) 2000-04-25 2001-10-11 Siemens Ag Elektrische Spule
US6668562B1 (en) * 2000-09-26 2003-12-30 Robert A. Shatten System and method for cryogenic cooling using liquefied natural gas
US7018249B2 (en) * 2001-11-29 2006-03-28 Siemens Aktiengesellschaft Boat propulsion system
DE10317967A1 (de) * 2002-06-06 2004-10-28 Siemens Ag Elektrische Maschine mit Statorkühleinrichtung
US6679066B1 (en) * 2002-08-16 2004-01-20 Sumitomo Heavy Industries, Ltd. Cryogenic cooling system for superconductive electric machines
JP4277312B2 (ja) * 2003-11-25 2009-06-10 ツインバード工業株式会社 サーモサイフォン
AU2003300152A1 (en) * 2003-12-29 2005-08-03 Supercool Llc System and method for cryogenic cooling using liquefied natural gas
GB0426838D0 (en) * 2004-12-07 2005-01-12 Oxford Instr Superconductivity Magnetic apparatus and method
US7994664B2 (en) * 2004-12-10 2011-08-09 General Electric Company System and method for cooling a superconducting rotary machine
DE102004061869B4 (de) * 2004-12-22 2008-06-05 Siemens Ag Einrichtung der Supraleitungstechnik und Magnetresonanzgerät
ES2587982T3 (es) 2005-11-18 2016-10-28 Mevion Medical Systems, Inc Radioterapia con partículas cargadas
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
DE102006046688B3 (de) * 2006-09-29 2008-01-24 Siemens Ag Kälteanlage mit einem warmen und einem kalten Verbindungselement und einem mit den Verbindungselementen verbundenen Wärmerohr
JP2008267496A (ja) * 2007-04-20 2008-11-06 Taiyo Nippon Sanso Corp 水素ガス冷却装置
US20090108969A1 (en) * 2007-10-31 2009-04-30 Los Alamos National Security Apparatus and method for transcranial and nerve magnetic stimulation
US8018102B2 (en) * 2008-08-11 2011-09-13 General Electric Company Shielding of superconducting field coil in homopolar inductor alternator
DE102009022074B4 (de) * 2009-05-20 2011-01-27 Siemens Aktiengesellschaft Magnetfelderzeugungsvorrichtung und zugehöriges Herstellungsverfahren
US8676282B2 (en) * 2010-10-29 2014-03-18 General Electric Company Superconducting magnet coil support with cooling and method for coil-cooling
KR101367142B1 (ko) 2011-10-12 2014-02-26 삼성전자주식회사 초전도 전자석 장치
US9958519B2 (en) * 2011-12-22 2018-05-01 General Electric Company Thermosiphon cooling for a magnet imaging system
US10224799B2 (en) * 2012-10-08 2019-03-05 General Electric Company Cooling assembly for electrical machines and methods of assembling the same
US9283350B2 (en) 2012-12-07 2016-03-15 Surmodics, Inc. Coating apparatus and methods
US9514916B2 (en) * 2013-03-15 2016-12-06 Varian Semiconductor Equipment Associates, Inc. Wafer platen thermosyphon cooling system
WO2014155476A1 (fr) * 2013-03-25 2014-10-02 株式会社日立製作所 Dispositif magnétique supraconducteur
GB2529897B (en) * 2014-09-08 2018-04-25 Siemens Healthcare Ltd Arrangement for cryogenic cooling
GB2537888A (en) * 2015-04-30 2016-11-02 Siemens Healthcare Ltd Cooling arrangement for superconducting magnet coils
CN106373699B (zh) * 2016-11-22 2018-05-04 宁波健信核磁技术有限公司 一种核磁共振成像装置及其线圈骨架
JP6626816B2 (ja) * 2016-11-24 2019-12-25 ジャパンスーパーコンダクタテクノロジー株式会社 超電導コイルの予冷方法及び超電導マグネット装置
CN111986869B (zh) * 2020-08-20 2022-03-01 合肥中科离子医学技术装备有限公司 一种超导质子回旋加速器的超导线圈骨架结构

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DE2515873B2 (de) * 1974-04-24 1981-03-26 ASEA AB, Västerås Direkt gekühlte Bandlagenwicklung für Transformatoren
US4277769A (en) * 1979-01-15 1981-07-07 Siemens Aktiengesellschaft Arrangement for cooling a superconduction magnet coil winding

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AU3895372A (en) * 1971-02-15 1973-08-16 Commw Ind Gases Liquid container
JPS607396B2 (ja) * 1976-05-31 1985-02-23 株式会社東芝 超電導装置
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Publication number Priority date Publication date Assignee Title
DE1912840A1 (de) * 1968-03-15 1969-10-02 Commissariat Energie Atomique Supraleiterkreis
DE2515873B2 (de) * 1974-04-24 1981-03-26 ASEA AB, Västerås Direkt gekühlte Bandlagenwicklung für Transformatoren
US4277769A (en) * 1979-01-15 1981-07-07 Siemens Aktiengesellschaft Arrangement for cooling a superconduction magnet coil winding

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175495A2 (fr) * 1984-09-17 1986-03-26 Kabushiki Kaisha Toshiba Appareil supraconducteur
EP0175495A3 (en) * 1984-09-17 1987-07-01 Kabushiki Kaisha Toshiba Superconducting apparatus
US4726199A (en) * 1984-09-17 1988-02-23 Kabushiki Kaisha Toshiba Superconducting apparatus
EP2390884A3 (fr) * 2010-05-25 2012-08-29 General Electric Company Dispositif de magnétisation supraconducteur
US8710944B2 (en) 2010-05-25 2014-04-29 General Electric Company Superconducting magnetizer
US9623215B2 (en) 2012-06-01 2017-04-18 Surmodics, Inc. Apparatus and methods for coating medical devices
US9827401B2 (en) 2012-06-01 2017-11-28 Surmodics, Inc. Apparatus and methods for coating medical devices
US10099041B2 (en) 2012-06-01 2018-10-16 Surmodics, Inc. Apparatus and methods for coating medical devices
US10507309B2 (en) 2012-06-01 2019-12-17 Surmodics, Inc. Apparatus and methods for coating medical devices
US11090468B2 (en) 2012-10-25 2021-08-17 Surmodics, Inc. Apparatus and methods for coating medical devices
US11628466B2 (en) 2018-11-29 2023-04-18 Surmodics, Inc. Apparatus and methods for coating medical devices
US11819590B2 (en) 2019-05-13 2023-11-21 Surmodics, Inc. Apparatus and methods for coating medical devices

Also Published As

Publication number Publication date
US4578962A (en) 1986-04-01
EP0144873B1 (fr) 1988-01-27
EP0144873A3 (en) 1986-02-12
DE3344046C2 (fr) 1987-06-25
DE3469095D1 (en) 1988-03-03
DE3344046A1 (de) 1985-06-20

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