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WO2012041900A1 - Machine supraconductrice à haute température (sht) comprenant un élément de support pour la séparation thermique d'un bloc chaud et d'un bloc froid - Google Patents

Machine supraconductrice à haute température (sht) comprenant un élément de support pour la séparation thermique d'un bloc chaud et d'un bloc froid Download PDF

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Publication number
WO2012041900A1
WO2012041900A1 PCT/EP2011/066855 EP2011066855W WO2012041900A1 WO 2012041900 A1 WO2012041900 A1 WO 2012041900A1 EP 2011066855 W EP2011066855 W EP 2011066855W WO 2012041900 A1 WO2012041900 A1 WO 2012041900A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
assembly
spring
axial
machine according
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.)
Ceased
Application number
PCT/EP2011/066855
Other languages
German (de)
English (en)
Inventor
Harald Müller
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 WO2012041900A1 publication Critical patent/WO2012041900A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K55/00—Dynamo-electric machines having windings operating at cryogenic temperatures
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment

Definitions

  • High-temperature superconductor (HTS) machine with a support element for thermal separation of a hot and a cold assembly
  • the invention relates to a high - temperature superconductor (HTS) machine with a hot assembly and a cold construction ⁇ group, which rotate about a common longitudinal ⁇ axis at the same speed during operation of the machine and are thermally separated from each other by a support member.
  • a first end of the support member is coupled to the warm assembly.
  • a second, opposite end of the support member is fixedly connected to the cold assembly.
  • High temperature superconductor machines are also referred to as HTS machines.
  • HTS machines are used as power generators or motors in off-shore applications and ships.
  • An HTS machine has an operating temperature of -243 ° C, whereby in a high magnetic field a current density of over 150 A / m 2 can be achieved. Thanks to the 30- to 80-fold higher current density compared to conventional electrical machines, compact coils can be built for the rotor of a machine. As a result, the efficiency can be significantly increased and the weight and volume of the entire machine can be reduced.
  • the installation space the so-called B side
  • the supporting element comprises a tube of glass ⁇ fiber reinforced plastic (GRP) and provides the interface of the ⁇ le is between cold and hot assembly.
  • GRP glass ⁇ fiber reinforced plastic
  • the pipe of fiberglass provides thermal separation of cold and warm construction ⁇ group.
  • the support element is fixedly connected to the cold assembly, such as a pole core, via a flanged steel ring.
  • the support element is fixed with a clearance fit to the warm assembly, with the "fi "takes place xation with a clearance fit to the shaft crossing a shaft by means of a centering ring in the shaft.
  • shafts ⁇ transition, and shaft components of the hot module. This fit is subjected to axial sliding due to the rotation of the components of warm and cold assembly. occurs due to the friction a wear of the clearance.
  • the invention provides a high-temperature superconductor (HTS) machine with a warm assembly and a cold construction ⁇ group, which rotate during operation of the HTS machine about a common longitudinal axis and are thermally separated from each other by a support member.
  • the cold assembly includes a pole core of the HTS machine.
  • a first end of the support element is coupled to the warm assembly.
  • a second, opposite ⁇ overlying end of the support member is fixedly connected to the cold construction ⁇ group.
  • the first end is coupled via at least one axial spring element with the warm construction ⁇ group.
  • axial movements of the support element relative to the hot assembly can be done freely and without abrasion. At the same time, this ensures axial spring element for a centric fixation of support ⁇ element and warm assembly to each other. Since no friction and thus no wear of the previously used snug fit occur due to the use of the axial spring element according to the invention, no temporally undefined revisions are required in this transition region between the support element and the hot assembly. Rather, the axial spring element ensures a permanent coupling for the thermal separation of hot and cold assembly of the HTS machine.
  • the axial spring element comprises a first and a second component and a spring ⁇ part.
  • the first component may be formed in the form of an outer spring ⁇ ring and the second component in the form of an inner spring ⁇ ring.
  • the first component is firmly connected to the hot assembly and the second component fixed to the support ⁇ element.
  • the spring member connects the first and the second component with respect to the longitudinal axis of the HTS machine axi ⁇ al displaceable.
  • the structure of the axial spring element gestat ⁇ tet it, the first and second component, ie to move the outer and inner spring ring, in the axial direction to each other. Such a shift can occur during operation of the HTS machine by design. Since both the first and the second component are each firmly connected to the warm assembly or with the support element, an abrasion-free connection is created.
  • the first component of the axial spring element along its environmental fangs on at least three equidistantly distributed, first puncturing ⁇ th comprises a connection to the spring member.
  • the second component of the axial spring element comprises along its circumference to at least ⁇ three equidistantly distributed, second points likewise if connected to the spring member, with the second points being provided between the first points.
  • first component and the spring part and / or the second component and the spring part are connected to each other by a positive connection.
  • This allows the axial spring element in a simple manner together and install in the HTS machine.
  • the first and / or the second component comprise a jewei ⁇ celled groove in which engages the spring member selectively.
  • the design and dimensioning of the axial spring element is such that the first and the second component of the axial spring element in the axial direction between 0.05 mm and 0.1 mm are mutually displaceable.
  • a suitable dimensioning of the individual components is dependent on the geometric dimensions of the HTS machine, in particular a diameter of the support element and the dimensions of the hot assembly in the region of the coupling of the first end of the support element.
  • the dimensioning of the individual components can be ermit ⁇ telt easily by tests or by calculation.
  • the axial spring element is formed from a spring steel. This has good elasticity and stability due to its properties.
  • the first end of the support element comprises a fastening ring, which is connected to the second component of the axial spring element, in particular by a positive connection.
  • the support element is a tube made of glass fiber reinforced Plastic (GRP) comprises, which is connected at the first end via the first and at the second end via a second fastening ring with the hot and the cold component.
  • the mounting rings are made of steel, for example.
  • the first component of the spring element is connected to an outer ring of the warm construction ⁇ group, in particular via a positive connection.
  • the outer ring may also be formed of steel.
  • the components of the axial spring element itself are preferably positively connected to each other. It is also provided to contact the axial spring element positively with its connection partners.
  • Fig. 1 is a schematic representation of a part of a
  • HTS machine which illustrates the thermal separation of a hot assembly from a cold assembly by a support member
  • Fig. 2 is a plan view of an inventively ⁇ tes axial spring element for coupling the Stitzele ⁇ ment with the warm assembly of the HTS machine, and
  • Fig. 3 is a perspective, sectional view
  • the HTS machine 1 shows a schematic cross-sectional representation of a high-temperature superconductor (HTS) machine 1.
  • the HTS machine 1 comprises a hot assembly 20 (not shown in detail), which, inter alia, comprises a shaft seat.
  • the reference numeral 30 a not detailed running cold ⁇ construction group 30 is shown, which in addition to other components a Polkern comprises.
  • the components of the hot assembly 20 and the cold assembly 30 rotate about a common longitudinal axis 50.
  • the designated ⁇ by the reference numeral 31 ⁇ part 31 of the cold component 30 and the designated by the reference numeral 22 stub shaft of the warm member 20 are therefore rotationally symmetrical ,
  • the Drehbewe ⁇ tion of the component is carried out at the same speed.
  • Reference numeral 10 is a thermally separated from each other the hot assembly 20 and the cold assembly 30
  • the support member 10 comprises a glass fiber reinforced plastic (GRP) existing pipe 11, at its first, the warm assembly 20 facing the end 12 a first steel ring 14 and on whose second, the cold assembly 30 facing end 13 a second
  • GRP glass fiber reinforced plastic
  • Steel ring 15 is arranged.
  • the GFRP pipe 11 and the steel rings 14, 15 flanged to the opposite ends 12, 13 form as a unit the support element 10.
  • the first and the second steel ring 14, 15 each have a groove for receiving the GRP pipe 11.
  • the steel ring 15 is fixedly connected to the housing ⁇ part 31 of the cold assembly.
  • the provided at the first end 12 steel ring 14 is coupled in accordance with the invention via an axial spring element 40 with an outer ring 21 of the hot assembly 20.
  • the existing example of steel outer ring 21 is in turn firmly connected to the stub shaft 22 of the hot assembly 20.
  • Fig. 2 a top view of a schematic depicting ⁇ lung of a single axial spring element of the invention 40 is shown, wherein the coupling of support element 10 and a warm assembly 20 can in principle also be carried out over a plurality of such axial spring elements 40.
  • the axial spring member 40 as the first component comprises 41 egg NEN outer spring ring, is disposed concentrically in ⁇ nerer spring ring to the second component as the 42nd
  • the outer spring ring 41 is firmly connected at least in the axial direction to the outer ring 21 of the hot assembly 20.
  • the firm connection is preferably made duroh a positive connection by the outer spring ring 41 is inserted into a corresponding groove of the outer ring 21.
  • the inner spring ring 42 is fixed at least in the axial direction, preferably in turn via a positive connection, connected to the steel ring 14 of the support member 10 in the region of its first end 12.
  • the steel ring 14 has this purpose a corresponding groove for receiving the in ⁇ neren spring ring 42. This can be taken, moreover, the cut, perspective view of FIG. 3.
  • the inner and outer spring ring are axially ver ⁇ pushed connected via a spring member 43 with respect to the longitudinal axis 50 of the HTS machine.
  • the spring member 43 is connected to example ⁇ four points 41-1, 41-2, 41-3 and 41-4 along its circumference with the outer spring ring 41.
  • the connection preferably takes place again via a positive connection, by appropriate, the outer spring ring 41 facing Wöl ⁇ exercises in an associated groove of the outer spring ring 41 a ⁇ grab, wherein the groove is circumferentially formed in the outer spring ring.
  • the first points 41-1, 41-2, 41-3 and 41-4 are preferably distributed equidistantly over the inner circumference of the outer spring ring 41.
  • the spring part 43 at four points 42-1, 42-2, 42-3 and 42-4 on a connection to the inner spring ring 42 on.
  • the number of second points is selected corresponding to the number of first points, the number can also be chosen differently.
  • the second points are distributed over the outer circumference of the inner spring ring such that they are respectively centered between two first points 41-1 and 41-2 and 41-2 and 41-3 and 41-3 and 41-4 and 41st -4 and 41-1 come to rest.
  • the connection of the second points 42-1, 42-2, 42-3, 42-4 to the inner spring ring 42 is also preferably via a form-fitting reali ⁇ Siert.
  • the inner spring ring 42 has an associated groove along its outer periphery.
  • the components 41, 42 and 43 of the spring element 40 are preferably formed from ⁇ a spring steel. Due to the selective fixation of the spring member 43 to the outer spring ring 41 and to the inner spring ring 42, an axial displaceability of the inner spring ring 42 is secured to the outer spring ring 41. It is sufficient if the axial sliding movable ⁇ ness between 0.05 mm and 0.1 mm. At the same time, it is ensured by the shape of the spring part 43 and the ⁇ sen selective connection to the outer and inner spring ring 41, 42 that the spring rings, regardless of their axial relative position to each other, are always centered fixed to each other.
  • the support element 10 can move in the region of its first end 12 without friction and without abrasion relative to the hot assembly 20.
  • two spring elements 40 which are arranged at a distance from one another, are shown in a mounting situation.
  • the outer spring rings 41 are connected to the outer ring 21 of the hot assembly 20. Since the cut is made in the region of the 12 o'clock position of the spring elements, there is also a connection to the first point 41 - 1 of the spring part 43 in this area. Accordingly, the spring parts 43 are arranged in the region of the 12 o'clock position at a distance from the respective inner spring rings 42.
  • the inner spring rings 42 are, as is readily apparent from Fig. 3, embedded in a groove of the first steel ring 14 of the support member 10. For clarity, the axially provided in the steel ring 14 groove for connection to the GRP pipe 11 is omitted.
  • the coupling of the support element and the hot assembly according to the invention enables a firm centering of the two components relative to one another, whereby an axial movement can, however, take place unhindered and without abrasion. As a result, wear-related revision cycles of the HTS machine can be reduced or avoided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Springs (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne une machine supraconductrice à haute température (SHT) (1) comprenant un bloc chaud (20) et un bloc froid (30) qui, lorsque la machine SHT fonctionne, tournent autour d'un axe longitudinal commun (50) et sont séparés thermiquement l'un de l'autre par un élément de support (10). Une première extrémité (12) de l'élément de support (10) est accouplée au bloc chaud (20) et une deuxième extrémité opposée (13) de l'élément de support (10) est reliée à demeure au bloc froid (30). La première extrémité (12) est accouplée au bloc chaud (20) par l'intermédiaire d'au moins un élément ressort axial (40).
PCT/EP2011/066855 2010-09-29 2011-09-28 Machine supraconductrice à haute température (sht) comprenant un élément de support pour la séparation thermique d'un bloc chaud et d'un bloc froid Ceased WO2012041900A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010041645A DE102010041645A1 (de) 2010-09-29 2010-09-29 Hochtemperatur-Supraleiter (HTS)-Maschine mit einem Stützelement zur thermischen Trennung einer warmen und einer kalten Baugruppe
DE102010041645.2 2010-09-29

Publications (1)

Publication Number Publication Date
WO2012041900A1 true WO2012041900A1 (fr) 2012-04-05

Family

ID=44764122

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/066855 Ceased WO2012041900A1 (fr) 2010-09-29 2011-09-28 Machine supraconductrice à haute température (sht) comprenant un élément de support pour la séparation thermique d'un bloc chaud et d'un bloc froid

Country Status (2)

Country Link
DE (1) DE102010041645A1 (fr)
WO (1) WO2012041900A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959066A (ja) * 1982-09-28 1984-04-04 Toshiba Corp 超電導発電機
JPH04340361A (ja) * 1991-05-14 1992-11-26 Chodendo Hatsuden Kanren Kiki Zairyo Gijutsu Kenkyu Kumiai 超電導回転電機の回転子
WO2002050985A1 (fr) * 2000-12-20 2002-06-27 Siemens Aktiengesellschaft Support d'enroulement d'un rotor supraconducteur et son concept de compensation d'extension axiale
US20080100158A1 (en) * 2006-10-27 2008-05-01 Woon-Sik Kwon Superconductivity rotor having torque tube
WO2008110186A1 (fr) * 2007-03-14 2008-09-18 Zenergy Power Gmbh Moyen de transmission de couple pour relier de manière solidaire en rotation un arbre et un rotor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52143420A (en) * 1976-05-26 1977-11-30 Fuji Electric Co Ltd Rotor of super conductive revolving machine
DE10235503A1 (de) * 2002-08-02 2004-02-19 Siemens Ag Maschine mit einer in einem Wicklungsträger angeordneten kühlbaren Wicklung sowie mit einer Drehmoment übertragenden Einrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959066A (ja) * 1982-09-28 1984-04-04 Toshiba Corp 超電導発電機
JPH04340361A (ja) * 1991-05-14 1992-11-26 Chodendo Hatsuden Kanren Kiki Zairyo Gijutsu Kenkyu Kumiai 超電導回転電機の回転子
WO2002050985A1 (fr) * 2000-12-20 2002-06-27 Siemens Aktiengesellschaft Support d'enroulement d'un rotor supraconducteur et son concept de compensation d'extension axiale
US20080100158A1 (en) * 2006-10-27 2008-05-01 Woon-Sik Kwon Superconductivity rotor having torque tube
WO2008110186A1 (fr) * 2007-03-14 2008-09-18 Zenergy Power Gmbh Moyen de transmission de couple pour relier de manière solidaire en rotation un arbre et un rotor

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Publication number Publication date
DE102010041645A1 (de) 2012-03-29

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