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EP0724273B1 - Dispositif magnétique avec enroulement supraconducteur à refroidissement forcé - Google Patents

Dispositif magnétique avec enroulement supraconducteur à refroidissement forcé Download PDF

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Publication number
EP0724273B1
EP0724273B1 EP96100489A EP96100489A EP0724273B1 EP 0724273 B1 EP0724273 B1 EP 0724273B1 EP 96100489 A EP96100489 A EP 96100489A EP 96100489 A EP96100489 A EP 96100489A EP 0724273 B1 EP0724273 B1 EP 0724273B1
Authority
EP
European Patent Office
Prior art keywords
coolant
winding
cooling
coil housing
vacuum
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
EP96100489A
Other languages
German (de)
English (en)
Other versions
EP0724273A2 (fr
EP0724273A3 (fr
Inventor
Helmut Marsing
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 EP0724273A2 publication Critical patent/EP0724273A2/fr
Publication of EP0724273A3 publication Critical patent/EP0724273A3/fr
Application granted granted Critical
Publication of EP0724273B1 publication Critical patent/EP0724273B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a magnetic device with a coil housing arranged in a vacuum-tight manner, with a winding made of superconducting conductors arranged in the coil housing and with at least one vacuum space surrounding the coil housing for thermal insulation of the winding.
  • the winding has at least one cooling channel through which a coolant which keeps the superconducting material of the conductors below their transition temperature T c is to be passed.
  • a corresponding magnet device can be found, for example, in EP-B-0 011 267 A1.
  • the windings of magnetic devices to be cooled can be created in particular with superconducting conductors.
  • the so-called classic alloys or compounds such as NbTi or Nb 3 Sn are generally provided as superconductor materials for this purpose.
  • the new high-T c superconductor materials such as those based on the Y-Ba-Cu-O or Bi-Sr-Ca-Cu-O material systems, have also been planned for such windings. While a helium cooling technology is required for the classic superconductor materials, a nitrogen cooling technology is also possible for the new high-T c superconductor materials.
  • a corresponding flow cooling technology with exclusively Coolant guided along the conductor is at the from EP 0 011 267 A1 mentioned at the outset Magnetic device not provided.
  • This magnetic device contains an arranged in an evacuated outer housing Coil housing to hold one of a winding frame recorded superconducting magnetic winding.
  • This winding consists of several mutually enclosing winding layers from a superconductor, being between neighboring ones Winding layers each have a coolant channel is formed.
  • the required coolant is first poured into one from the outside formed between the winding frame and the coil housing, as a space to be regarded as a coolant collecting space fed in and discharged to the outside.
  • the object of the present invention is a magnetic device of the type mentioned with flow cooling to indicate where the aforementioned problems of a forced Coolant flow are at least partially reduced and an effective use of the heat capacity of the coolant is made possible.
  • a superconducting winding 3 of a magnetic device 2 for example for a superconducting magnetic energy storage accepted.
  • the winding 3 is composed of several circular disk-shaped, a common coil axis A enclosing partial windings 3i (with 1 ⁇ i ⁇ n) together. In only some of these partial windings are indicated in the figure.
  • the partial windings are e.g. in the form of so-called double pancakes built with superconductors, for example one of the known classic superconductor materials and can therefore be cooled with LHe.
  • a common coolant distribution channel 5 is provided by the channel-like connections 6i to at least one each Leave the cooling duct through the respective partial winding 3i.
  • the Cooling channels through the partial windings can be in or on the superconductors themselves or through spaces be formed between the conductors.
  • Each partial winding 3i is wound on a section of a winding core 7, the preferably made of a plastic such as e.g. GRP or CFRP consists.
  • this winding core 7 is shown in the figure 2 can be seen in more detail and designated 7i. It is beneficial designed as a capsule-like coolant feed element.
  • This element 7i is on an inner ladder positioned the one with a formation of the partial winding 3i as a double disc of a pancake winding 3i at the transition from one to the other disc is present. Further the element 7i is provided with a passage opening 5i, the corresponding part of the coolant distribution channel 5 forms.
  • Coolant distribution channel 5 from which on the respective capsule-like coolant feed element winding in parallel partial flows can be forced cooled.
  • the through openings 5i to each other sealed.
  • the coolant K the winding from the inside out with a comparatively lower flow resistance in the existing cooling sections flow through against a leakage current.
  • a superconductor 10 can be provided, which has two cooling channels 11a and 11b, which by means of the coolant feed element 7i with the Coolant distribution channel 5 via those not shown in the figure channel-like connections (6i) are connected.
  • the flow directions of the coolant K are by arrows Lines indicated.
  • the head 10 contains one between the cooling channels 11a and 11b extending superconducting Conductor core 12 and is adjacent in the partial winding Conductor parts spaced apart by means of a conductor bandage 13, possibly also isolated.
  • This bandage is said to be in the first Line inflating magnetic forces absorb so that they at particularly large forces can consist of metal. Possibly it is also made of an insulating material such as glass fiber reinforced plastic.
  • coolant K forces the individual partial windings 3i Flows in the radial direction from the inside to the outside has, it emerges from the winding as shown in Figure 1 3 as coolant K 'at channel openings 14j in one Coolant bath room 15.
  • the outlet openings 14j are located expediently on the radially outer electrical Connections of the winding 3 and the electrical contact points between their adjacent sub-windings 3i.
  • the one Coolant K 'absorbing bath space 15 is between the the outside of the winding 3 and the inner wall of a high vacuum tight, the winding-receiving coil housing 16 existing gaps formed.
  • the bathroom 15 Filling coolant K 'thus at least largely floods the winding 3 from the outside. This is advantageous additional cooling capacity, especially for flow technology unevenly supplied winding parts, from the outside provided the winding.
  • the Coolant K in the coolant distribution channel 5 has a high vacuum density Feedthrough 17a through the wall of the coil housing 16 and for the removal of the coolant K 'advantageously only a single further high vacuum-tight bushing 17b is required.
  • a high vacuum density Feedthrough 17a through the wall of the coil housing 16 for the removal of the coolant K 'advantageously only a single further high vacuum-tight bushing 17b is required.
  • For potential isolation are in the corresponding Coolant supply line 18a and coolant discharge line 18b each provide a potential isolator 19a or 19b.
  • the electrical connection of the winding 3 for guidance a current I takes place separately via corresponding connecting lines 20a and 20b, which are insulated and highly vacuum tight on bushings 21a and 21b through the wall of the coil housing 16 are to be managed.
  • the coil housing is for thermal insulation in one High vacuum space 22 arranged.
  • This vacuum room is located inside an outer housing, not shown in the figure, which is generally at room temperature. Between this outer housing and the coil housing can still more thermal insulation agents such as cooled radiation shields, cooled gaps or other vacuum spaces are provided his.
  • Figure 3 shows a section through a double pancake designed part winding 3i in the area of its winding core section or coolant feed element 7i.
  • the coolant distribution channel 5 on the Coolant feed element 7 in a single superconductor 10 a first, inner winding layer to the two Cooling channels 11a and 11b leading connecting channels 6a and 6b evident.
  • This conductor 10 forms e.g. the inner Ladder crossing of the double disc of a pancake winding.
  • From the second winding layer is the partial winding 3i through two superconductors of the double disc lying side by side built up. Between adjacent partial windings is one for the coolant K 'of the coolant bath space 15 transparent disk-shaped insulation 23 is provided.
  • Towards this Coolant K ' is the coolant K in the coolant distribution channel 5 sealed.
  • the coolant K is the superconductor 10 of the winding 3 via a special coolant distribution channel 5 and the coolant supply line arranged in front 18a separated from the at least one electrical Lead 20a or 20b is supplied.
  • the coolant supply can also be via a designed as a waveguide electrical connecting conductor. It is possible to use a special coolant distribution channel to renounce.
  • coolant K only larger parts of the winding 3 or the entire winding is forced flows through until it reaches the coolant bath space 15.
  • a coolant guide is particularly useful for windings that are not subdivided into discrete partial windings on. In this case too there is a special coolant distribution channel not mandatory.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)

Claims (10)

  1. Dispositif magnétique (2)
    avec un boítier à bobines (16) réalisé étanche au vide et agencé dans un boítier extérieur,
    avec un enroulement (3) de conducteurs supraconducteurs (10) agencé dans le boítier à bobines (16), l'enroulement (3) présentant au moins un canal de refroidissement (11a, 11b), à travers lequel est à conduire un réfrigérant (K) maintenant le matériau supraconducteur des conducteurs (10) sous leur point du changement brusque de la conductivité Tc,
    et
    avec au moins une chambre à vide (22) entourant le boítier à bobines (16) pour l'isolation thermique de l'enroulement (3),
    caractérisé
    en ce qu'une sortie (14j) du réfrigérant (K') est prévue après une conduite forcée par l'enroulement (3) dans une chambre de bain de réfrigérant (15) présente entre l'enroulement (3) et le boítier à bobines (16)
    et
    en ce qu'une évacuation étanche au vide du réfrigérant (K') est prévue hors de cette chambre de bain de réfrigérant (15).
  2. Dispositif selon la revendication 1, caractérisé en ce que l'enroulement (3) est divisé en plusieurs sous-enroulements (3i).
  3. Dispositif selon la revendication 2, caractérisé en ce que chaque sous-enroulement (3i) est construit comme un enroulement à double galette.
  4. Dispositif selon la revendication 2 ou 3, caractérisé en ce que la sortie (14j) du réfrigérant (K') est prévue dans la chambre de bain de réfrigérant (15) après la conduite forcée du réfrigérant (K) par chaque fois au moins un sous-enroulement (3i).
  5. Dispositif selon l'une des revendications 2 à 4, caractérisé en ce que, pour la conduite du réfrigérant (K) vers chacun des sous-enroulements (3i), est prévu un canal de distribution commun (5) avec des liaisons (6a, 6b; 6i) vers le au moins un canal de refroidissement (11a, 11b) respectif de chaque sous-enroulement (3i).
  6. Dispositif selon la revendication 5, caractérisé en ce qu'à chaque sous-enroulement (3i) est attribué un élément d'alimentation en réfrigérant (7i), qui forme la partie correspondante du canal de distribution (5) et la liaison (6a, 6b; 6i) vers le au moins un canal de refroidissement (11a, 11b) du sous-enroulement (3i).
  7. Dispositif selon la revendication 6, caractérisé en ce que les éléments d'alimentation en réfrigérant (7i) peuvent être aboutés l'un à l'autre par la conception du canal de distribution (5).
  8. Dispositif selon la revendication 6 ou 7, caractérisé en ce que les éléments d'alimentation en réfrigérant (7i) sont les noyaux d'enroulement de chaque sous-enroulement (3i).
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que des lignes électriques de raccordement (20a, 20b) de l'enroulement (3) et, séparées de celles-ci, des lignes (18a, 18b) pour l'amenée et l'évacuation du réfrigérant (K, resp. K') sont conduites de manière étanche au vide par la paroi du boítier à bobines (16).
  10. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que des lignes électriques de raccordement de l'enroulement sont agencées à l'intérieur de lignes pour l'amenée et l'évacuation du réfrigérant.
EP96100489A 1995-01-27 1996-01-15 Dispositif magnétique avec enroulement supraconducteur à refroidissement forcé Expired - Lifetime EP0724273B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19502549 1995-01-27
DE19502549A DE19502549A1 (de) 1995-01-27 1995-01-27 Magneteinrichtung mit forciert zu kühlender supraleitender Wicklung

Publications (3)

Publication Number Publication Date
EP0724273A2 EP0724273A2 (fr) 1996-07-31
EP0724273A3 EP0724273A3 (fr) 1996-10-16
EP0724273B1 true EP0724273B1 (fr) 2000-05-24

Family

ID=7752462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96100489A Expired - Lifetime EP0724273B1 (fr) 1995-01-27 1996-01-15 Dispositif magnétique avec enroulement supraconducteur à refroidissement forcé

Country Status (2)

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EP (1) EP0724273B1 (fr)
DE (2) DE19502549A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10117847C1 (de) 2001-04-04 2003-02-06 Siemens Ag Transformator mit forcierter Flüssigkeitskühlung
FR2895802B1 (fr) 2005-12-30 2008-11-07 Commissariat Energie Atomique Procede et dispositif de creation d'un champ magnetique homogene dans une zone d'interet, notamment pour l'imagerie rmn
KR20160125948A (ko) * 2013-12-18 2016-11-01 빅토리아 링크 리미티드 초전도 장치용 저온 유지 장치

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056071A (en) * 1959-02-12 1962-09-25 William R Baker Electrical coil structure
US3363207A (en) * 1966-09-19 1968-01-09 Atomic Energy Commission Usa Combined insulating and cryogen circulating means for a superconductive solenoid
FR1510110A (fr) * 1966-12-08 1968-01-19 Alsthom Savoisienne Enroulements pour cryotransformateurs
CH584450A5 (fr) * 1975-04-24 1977-01-31 Bbc Brown Boveri & Cie
JPS607396B2 (ja) * 1976-05-31 1985-02-23 株式会社東芝 超電導装置
JPS5565408A (en) * 1978-11-13 1980-05-16 Toshiba Corp Superconductive electromagnet
JPS61113217A (ja) * 1984-11-08 1986-05-31 Agency Of Ind Science & Technol 超電導マグネツト装置
JPS6220303A (ja) * 1985-07-19 1987-01-28 Hitachi Ltd 強制冷却超電導コイル装置
JP3309390B2 (ja) * 1990-08-24 2002-07-29 住友電気工業株式会社 高温超電導導体巻線

Also Published As

Publication number Publication date
EP0724273A2 (fr) 1996-07-31
EP0724273A3 (fr) 1996-10-16
DE19502549A1 (de) 1996-08-01
DE59605270D1 (de) 2000-06-29

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