DE2116651A1 - Process for the cooling and insulation of superconducting electrotechnical equipment, devices and apparatus - Google Patents

Process for the cooling and insulation of superconducting electrotechnical equipment, devices and apparatus

Info

Publication number
DE2116651A1
DE2116651A1 DE19712116651 DE2116651A DE2116651A1 DE 2116651 A1 DE2116651 A1 DE 2116651A1 DE 19712116651 DE19712116651 DE 19712116651 DE 2116651 A DE2116651 A DE 2116651A DE 2116651 A1 DE2116651 A1 DE 2116651A1
Authority
DE
Germany
Prior art keywords
helium
devices
superconducting
cooling
insulation
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.)
Pending
Application number
DE19712116651
Other languages
German (de)
Inventor
Peter Prof.Dipl.-Ing.Dr; Graz Klaudy (Österreich)
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of DE2116651A1 publication Critical patent/DE2116651A1/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B12/00Superconductive or hyperconductive conductors, cables, or transmission lines
    • H01B12/14Superconductive or hyperconductive conductors, cables, or transmission lines characterised by the disposition of thermal insulation
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/60Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment

Landscapes

  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)

Description

Licentia Patent-Verwaltungs-GmbH 6 Frankfurt (Mein) 70, Theodor-Stern-Kai 1Licentia Patent-Verwaltungs-GmbH 6 Frankfurt (Mein) 70, Theodor-Stern-Kai 1

Hr/ktz B I 7V3O HrHr / ktz B I 7V3O Hr

18. März 1971March 18, 1971

Verfahren zur Kühlung und Isolation von supraleitenden elektrotechnischen Einrichtungen, Geräten und ApparatenProcess for cooling and insulation of superconducting electrotechnical equipment, devices and apparatus

Die Erfindung betrifft elektrotechnische Einrichtungen, Geräte und Apparate mit supraleitenden Wicklungen, bei denen Helium in verschiedenen Zuständen als Kühl- und, Isolationsmittel zur Anwendung gelangt.The invention relates to electrical equipment, devices and apparatus with superconducting windings in which Helium is used in various states as a coolant and insulating agent.

In den bisher bekannten Einrichtungen, Geräten und Apparaten mit supraleitenden Leitern wird Helium als Kühlmittel verwendet, um die notwendigen tiefen, in der Nähe des absoluten WuI!punkten liegenden Temperaturen zu erreichen. Zur elektrischen Isolation der Leiter werden entweder Festkörper, Zryovakuum oder das zur Kühlung verwendete Helium selbst verwendet, zumal dieses unter entsprechenden Bedingungen elektrische Durchschlagsfestigkeiten, die ungefähr denjenigen von Transformatoröl entsprechen oder sogar über diesen liegen, be-In the previously known facilities, devices and apparatus With superconducting conductors, helium is used as a coolant to get the necessary depth, close to the absolute WuI! Punkten to achieve lying temperatures. For electrical Insulation of the conductors is either solid state, cryovacuum or the helium used for cooling itself, especially since this, under the appropriate conditions, has dielectric strengths that are approximately those of Transformer oil correspond to or even exceed this,

BAD OBlGlNAL 209836/06U BAD OBlGlNAL 209836 / 06U

- 2 - BI 71/30 Hr- 2 - BI 71/30 Mr.

sitzt. Die verwendeten Mengen, Drücke und Temperaturen, werden unter Beachtung wirtschaftlicher Gesichtspunkte int Hinblick auf ausreichende Kühlwirkung oder - bei strömendem, ... Kühlmittel - unter Berücksichtigung der Strömungsverhält- . nisse (Druckabfall usw.) gewählt* : : sits. The quantities, pressures and temperatures used are determined taking into account economic aspects with regard to sufficient cooling effect or - in the case of flowing, ... coolant - taking into account the flow conditions. selected Menus (pressure drop, etc.) *:

In jüngster Zeit vorgenommene Messungen bestätigten, daß die elektrische Durchschlagsfestigkeit flüssigen oder gasförmigen Heliums dichteabhängig ist und daher in einem, gewissen Bereich mit dem Druck zunimmt. Die Anwendung von Helium höheren Druckes, bringt aber Nachteile mit sich, wie eine mechanische Beanspruchung der Behälter oder Rohre des •Kälteschutzsystems, in dem sich das Helium befindet, höhere Strömungs— Verluste und geringere spezifische Wärmeaufnahmefähigkeit des Heliums.Recent measurements confirmed that the dielectric strength liquid or gaseous Helium is density dependent and therefore in a certain amount Area increases with pressure. The use of helium at higher pressure, however, has disadvantages, such as mechanical stress on the containers or pipes of the • cold protection system, in which the helium is located, higher flow— Losses and lower specific heat absorption capacity of the helium.

Erfindungsgemäß wird deshalb vorgeschlagen in elektrischen Einrichtungen, Geräten oder Apparaten für die elektrische Isolation und für; die Kühlung der Supraleiter Helium in verschiedenen Zuständen zu verwenden: Helium von einigen Atmosphären Druck (Hochdruckhelium), das gegebenenfalls nicht zu strömen braucht, zur elektrischen Isolation und gegebenenfalls strömendes Helium geringeren Druckes, das mit dem Hochdruckhelium in thermischem Gleichgewicht steht, zur Kühlung der Leiter.According to the invention it is therefore proposed in electrical Devices, devices or apparatus for electrical insulation and for; to use the cooling of the superconductors helium in different states: helium from a few atmospheres Pressure (high pressure helium) that may not be needs to flow, for electrical insulation and possibly flowing helium of lower pressure, that with the high pressure helium is in thermal equilibrium to cool the conductor.

Fig. 1 stellt ein Ausführungsbeispiel des Erfindungsgedankens für den Fall eines supraleitenden Drehstromkabels dar. Die drei als metallische Wellrohre mit supraleitenden Belägen ausgeführten Stromleiter W. W2 W^ befinden sich durch entsprechende Abstandshalter I aus Isolierstoff in 'ihrer Lage , zentriert, im Innern dreier metallischer Wellrohre W^ W1- Wfi , die sich elektrisch auf Erdpotential befinden und werden gegen diese Wellrohre durch flüssiges Helium ILj von einigenFig. 1 shows an embodiment of the inventive concept for the case of a superconducting three-phase cable. The three electrical conductors W. W2 W ^ designed as metallic corrugated tubes with superconducting coverings are in their position, centered, inside three metallic ones by means of corresponding spacers I made of insulating material Corrugated pipes W ^ W 1 - W fi , which are electrically at earth potential and are protected against these corrugated pipes by liquid helium ILj by some

209836/0614 : bad original209836/0614 : bad original

. - 3 - BI 7V3O Hr. - 3 - BI 7V3O Mr.

Atmosphären Druck (Hochdruckhelium) - das gegebenenfalls nicht zu strömen braucht - elektrisch isoliert. Die drei die Leiter umgebenden Wellrohre W^ W1- Wg sind in einem größeren Wellrohr W1-,, durch das Niederdruckhelium K^, das sich mit dem Hochdruckhelium in den 3 Wellrohren TnL W1- Wg ·auf praktisch gleicher Temperatur befindet, strömt, angeordnet. Das strömende Niederdruekhelium H^ nimmt die durch das aus den Wellrohren Wg Wq W^0 zwischen denen sich Kryovakuum Cr, flüssiger Stickstoff- ITp bzw. Vakuum Y befindet, bestehende KaiteSchutzsystem von außen eindringende Wärmemenge auf.Atmospheric pressure (high pressure helium) - which may not need to flow - electrically isolated. The three corrugated pipes W ^ W 1 - Wg surrounding the conductors are in a larger corrugated pipe W 1 - ,, flows through the low pressure helium K ^, which is at practically the same temperature as the high pressure helium in the 3 corrugated pipes TnL W 1 - Wg · , arranged. The flowing low pressure helium H ^ absorbs the amount of heat that penetrates from the outside through the corrugated tubes Wg Wq W ^ 0 between which there is cryovacuum Cr, liquid nitrogen ITp or vacuum Y.

Die elektrische Isolation wird .somit vom Hochdruckhelium, die Kühlung vom Niederdruckhelium (Druck etwa 1 Atmosphäre) übernommen. ·The electrical insulation is .that by the high pressure helium, the cooling is taken over by the low pressure helium (pressure about 1 atmosphere). ·

3 S. Beschreibung
3 Patentansprüche
1Bl. Zeichnung m. 2 Fig.
3 See description
3 claims
1 sheet Drawing with 2 Fig.

PatentansprücheClaims

Λ Λ ο , η η λ ι Λ Λ ο, η η λ ι ΒΑ° ORIGINALΒΑ ° ORIGINAL

209 836/06U209 836 / 06U

Claims (2)

- 4 - BI 71/30 Hr- 4 - BI 71/30 Mr. PatentansprücheClaims Λ .) Supraleitende durch Helium gekühlte elektrotechnische Einrichtungen, Geräte und Apparate, dadurch gekennzeichnet, daß in ihnen für die elektrische Isolation
und für die Kühlung Helium in verschiedenen Zuständen verwendet wird.
Λ .) Superconducting helium-cooled electrotechnical devices, devices and apparatus, characterized in that they are used for electrical insulation
and helium is used in various states for cooling.
2. Supraleitende durch Helium gekühlte elektrotechnische Einrichtungen, Geräte und Apparate nach Anspruch 1, dadurch gekennzeichnet, daß das zur Isolation benützte Helium höheren Druck als das zur Kühlung benützte Helium besitzt. 2. Superconducting electrotechnical devices cooled by helium, Equipment and apparatus according to Claim 1, characterized in that the helium used for insulation higher pressure than the helium used for cooling. 3· Supraleitende durch Helium gekühlte elektrotechnische Einrichtungen, Geräte und Apparate nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das zur Isolation und Kühlung benutzte Helium sich auf praktisch gleicher
Temperatur befindet.
3 · Superconducting helium-cooled electrotechnical devices, devices and apparatus according to claim 1 or 2, characterized in that the helium used for insulation and cooling is practically the same
Temperature.
2 0 9 8 3 6/061 A BAD ORIGINAL2 0 9 8 3 6/061 A BAD ORIGINAL
DE19712116651 1970-05-25 1971-04-01 Process for the cooling and insulation of superconducting electrotechnical equipment, devices and apparatus Pending DE2116651A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT467370 1970-05-25

Publications (1)

Publication Number Publication Date
DE2116651A1 true DE2116651A1 (en) 1972-08-31

Family

ID=3566924

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712116651 Pending DE2116651A1 (en) 1970-05-25 1971-04-01 Process for the cooling and insulation of superconducting electrotechnical equipment, devices and apparatus

Country Status (2)

Country Link
DE (1) DE2116651A1 (en)
FR (1) FR2091814A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2685469A1 (en) * 2012-07-11 2014-01-15 Nexans Assembly with at least one superconducting cable
EP2698794A1 (en) * 2012-08-14 2014-02-19 Nexans Assembly with at least one superconducting cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2685469A1 (en) * 2012-07-11 2014-01-15 Nexans Assembly with at least one superconducting cable
EP2698794A1 (en) * 2012-08-14 2014-02-19 Nexans Assembly with at least one superconducting cable

Also Published As

Publication number Publication date
FR2091814A5 (en) 1972-01-14

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