EP3119993A1 - Turbine à vapeur avec coque d'étanchéité et palier magnétique disposé dans celle-ci - Google Patents

Turbine à vapeur avec coque d'étanchéité et palier magnétique disposé dans celle-ci

Info

Publication number
EP3119993A1
EP3119993A1 EP15705295.2A EP15705295A EP3119993A1 EP 3119993 A1 EP3119993 A1 EP 3119993A1 EP 15705295 A EP15705295 A EP 15705295A EP 3119993 A1 EP3119993 A1 EP 3119993A1
Authority
EP
European Patent Office
Prior art keywords
magnetic bearing
steam turbine
sealing
sealing shell
turbine
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.)
Withdrawn
Application number
EP15705295.2A
Other languages
German (de)
English (en)
Inventor
Frank Meller
Rüdiger BACKASCH
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 EP3119993A1 publication Critical patent/EP3119993A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/003—Preventing or minimising internal leakage of working-fluid, e.g. between stages by packing rings; Mechanical seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/06—Arrangements of bearings; Lubricating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/31—Application in turbines in steam turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/50—Bearings
    • F05D2240/51—Magnetic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/50—Bearings
    • F05D2240/52—Axial thrust bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/50—Bearings
    • F05D2240/54—Radial bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C37/00—Cooling of bearings
    • F16C37/005—Cooling of bearings of magnetic bearings

Definitions

  • the invention relates to a steam turbine and a sealing shell for a steam turbine.
  • An object of the present invention is ⁇ least to eliminate the aforementioned disadvantages in the prior art Wenig partially.
  • the object is achieved by a steam turbine comprising a turbine housing, a projecting into an interior of the turbine casing rotor shaft, we ⁇ iquess a sealing shell which the rotor shaft is sealingly arranged in a sealing cup receptacle of the turbine housing, and a magnetic bearing arrangement for mounting the Rotorwel ⁇ le has solved.
  • a Mag ⁇ netlagerelement the magnetic bearing assembly is disposed at least in the seal cup. Characterized in that arranged at least one magnetic bearing element of the magnetic bearing arrangement in the seal cup Bezie ⁇ hung as is received, the seal cup can fulfill a further function in addition to the sealing effect.
  • the bearing distance of the magnetic bearing assembly and the length of the rotor shaft of the steam turbine can be shortened.
  • the entire space required for the steam turbine, the weight and material requirements, as well as the manufacturing cost of the steam turbine can thus be ver ⁇ Ringert.
  • the steam turbine receives a
  • a weight saving of the entire steam turbine is realized by the combination of the sealing shell with at least one magnetic bearing element .
  • the rotor length of the steam turbine and thus the entire steam turbine can be made shorter and thus lighter by integrating the at least one magnetic bearing element of the magnetic bearing arrangement in the sealing shell.
  • Magnetic bearing elements accommodated in the sealing shell preferably comprise at least one axial magnetic bearing element and at least one radial magnetic bearing element in a preferred steam turbine.
  • all Magnetlagerele ⁇ ments of the magnetic bearing assembly which are provided on a respective Be ⁇ te of the steam turbine, in the sealing shell is ⁇ assigns or be integrated.
  • the ⁇ added to the sealing shell Mag ⁇ netlagerieri can form an axial / radial magnetic bearings and one of which axially spaced radial magnetic bearings.
  • the sealing shell comprises an outer sealing shell and an inner sealing shell and the radial magnetic bearing is at least partially disposed in a nen ⁇ nen beyond the turbine housing beyond projecting portion of the outer sealing shell. If the steam turbine still has an inner sealing shell adjacent to an outer sealing shell, a double sealing of the rotor shaft can also be realized. Between the outer sealing shell and the inner sealing shell, an annular space is formed which is used as a way of playing collecting space for escaping exhaust steam at ⁇ .
  • the radial magnetic bearing is arranged at least partially in egg ⁇ nen inwardly beyond the turbine housing beyond projecting ⁇ section of the outer sealing shell, move the magnetic bearing elements of the magnetic bearing assembly even further ⁇ together and the bearing distance can be further reduced ⁇ who.
  • the exhaust steam which is present in the annular space, can umströ ⁇ men and temper the inwardly projecting portion of the outer sealing shell and thus, in particular for pre-tempering contribute the arranged there radial magnetic bearing.
  • the magnetic bearing elements at least partially contribute to the sealing of a In ⁇ nenraums of the turbine housing.
  • a gap spacing of the magnetic bearing elements can be dimensioned so that a gap seal is realized.
  • the gap distance is understood to be a distance or a thickness of a gap between an active surface of the respective magnetic bearing element and a mating surface or reaction surface.
  • an inner contour of a radial magnetic bearing element as
  • the sealing effect can be also preferably achieved by at least one of the magnetic bearing elements having a Magnetla ⁇ Melle packet with a plurality of first fins and two ⁇ ten lamellae, wherein a gap distance between the first plate separates from a gap spacing of the second fin under ⁇ , wherein the Gap spacings are dimensioned so that the magnetic disk set a sealing element in the manner of a
  • Labyrinth seal for sealing the interior of the turbine ⁇ housing forms.
  • a particularly effective sealing effect can be achieved.
  • a sealing effect of the magnetic bearing elements from inside to outside, seen from the interior of the turbine housing, from ⁇ decreases.
  • a barrier medium is used to seal in the seal cup can by such ge ⁇ directed sealing effect an efficient removal of the barrier mediums are achieved over the bearing gap.
  • the magnetic bearing elements can be cooled via an introduced into the sealing shell cooling medium.
  • channels can ⁇ example be formed in the seal cup, which by directing the cooling medium in a suitable manner to the magnetic bearing elements to receive heat from these.
  • Thedewir ⁇ effect is preferably such that the Magnetlagerele ⁇ elements not exceed in operation depending on the materials used, the magnetic bearing elements to a temperature of, for example, permanent adhesive ⁇ a maximum of 200 ° C.
  • the sealing shell has an annular channel, which is open radially inward and is designed to introduce the cooling medium, the cooling medium can gelei ⁇ tet to the bearing gap of the magnetic bearing elements.
  • the sealing shell can be designed without its own connection elements.
  • An advantageous synergy can be exploited if the cooling medium is at the same time a barrier medium for sealing the interior of the turbine housing.
  • the seal cup is advantageousrosebil ⁇ det in order to press the barrier medium, which simultaneously serves as a cooling medium, in a sealing gap or bearing gap Zvi ⁇ rule of the seal cup or the received therein magnetic bearing elements and the rotor shaft to the annular channel. If it becomes for an effective cooling of the magnetic bearing elements ⁇ already sufficient if the annular channel is angeord ⁇ net beside or between the respective magnetic bearing elements that the barrier medium can absorb the heat of the respective Mag ⁇ netlager institute.
  • the cooling medium is exhaust steam of the steam turbine, in particular if the turbine housing has a blocking steam space for receiving exhaust steam escaping from a working chamber of the turbine housing, from which barrier vapor space the exhaust steam is supplied via suitable lines of the sealing shell. to be led.
  • the sealing seal on the sealing shell is already provided, often with the use of Abdampfs as a barrier medium.
  • the turbine housing is already prepared for connecting a barrier media line or collection of the exhaust steam and Einlei ⁇ tion thereof in the sealing shell. Also in this regard, at least as far as the barrier medium such.
  • the exhaust steam of the steam turbine is used as a cooling medium, no further changes required on Tur ⁇ binengephase.
  • a Ventilationsele ⁇ ment is provided, which is formed, the cooling medium via a gap between the rotor shaft and the magnetic bearing ⁇ elements and / or the sealing shell is formed to au ⁇ to transport.
  • the ventilation element is preferably driven by the rotor shaft. In this way, a pressure gradient may be created or enhanced in a simple manner to the cooling medium, which is optionally identical ⁇ table with the barrier medium to suck from the bearing gap and thus to ensure a continuous supply of the cooling medium.
  • a second aspect of the invention relates to a sealing plate for a steam turbine for sealing a projecting into a housing of the steam turbine rotor shaft, at least one magnetic ⁇ bearing element of a magnetic bearing assembly for supporting the Ro ⁇ door shaft is received within the seal cup.
  • the sealing cup is designed to receive the at least one magnetic bearing element.
  • the thus adapted sealing shell can also be understood as a bearing receptacle whose outer contour is adapted to be mounted in a Dichtshchalesfact and also for sealing the rotor shaft or to Sealing an interior of the turbine housing is adapted to the external environment on the rotor shaft.
  • a bearing support brings the same advantages, which are discussed in connection with the steam turbine according to the first overall viewpoint of the invention, respectively with the seal cup according to the second aspect of the invention wor ⁇ are.
  • FIG. 1 shows a section of a steam turbine according to any ers ⁇ th embodiment of the present invention
  • FIG. 2 shows a partial section of a sealing shell with a
  • Magnetic bearing element in a variant.
  • Fig. 1 shows a detail of a steam turbine 1 according to a first embodiment of the present invention. Exactly ⁇ said, the section of Fig. 1 shows a region of the steam turbine 1, on which a rotor shaft 4 passes through a turbine housing 2 of the steam turbine 1, the rest of the steam turbine 1 is cut away. In section shown components are also shown only on the upper side of the rotor shaft 4 in the figure, on the lower side they are also cut away.
  • the steam turbine 1 has a turbine housing 2, which limits a working space 3 of the steam turbine 1.
  • the turbine housing 2 has frontally two walls, one of which is referred to as an end wall 2a and a further inside is referred to as an intermediate wall 2b.
  • the end wall 2a has a Dichtschalenability 5, which receives a (äuße ⁇ re) sealing shell 6.
  • the intermediate wall 2 b has a sealing shell receptacle 7, which receives an (inner) sealing shell 8.
  • the inner sealing shell 8 has a sealing element 9 such. B. a pack on.
  • a Sperrdampf Hurm 10 is defined between the end wall 2a and the intermediate wall 2b a Sperrdampf Hurm 10 is defined. In the Sperrdampf Hurm 10 can, depending on the pressure conditions in Sperrdampf Hurm 10 and the working space 3 during operation of the
  • the Ab ⁇ suction container 27 is a pressure vessel and via the Ventila ⁇ tion element 16 of the annular channel 12 is pressurized, so that no leakage steam from the Sperrdampfhoffm 10 in the Ringka ⁇ channel 12 can escape.
  • cooling steam can be pumped past the magnetic bearing elements 15a, 15b into the annular channel 12 for cooling the magnetic bearing arrangement 13 via the ventilation element 16 from the pressure vessel 12.
  • Alternatively or ⁇ additionally 12 leakage steam which has been withdrawn from the Sperrdampfhoffm 10 prior ⁇ forth, or other cooling steam from the pressure vessel 27 via the Ventilationsele ⁇ element can be 16 11 supplied to the distribution channel for cooling the Magnetlageranord ⁇ voltage 13 via the pressure container.
  • a distribution channel 11 in the form of a ner inwardly, ie formed to the outer sealing shell 6, offe ⁇ nen annular groove.
  • the distribution channel 11 is connected via means not shown, such as holes and / or channels with the pressure vessel 27 and the ventilation element 16 in connection.
  • the outer sealing shell 6 has an inwardly, ie towards the rotor shaft 4 out, open annular channel 12.
  • the annular channel 12 can communicate via non-illustrated means such as holes and / or channels with the distribution channel 11 of the end wall 2a.
  • the sealing shell 6 is designed to receive magnetic bearing elements of a magnetic bearing arrangement 13.
  • the magnetic bearing assembly 13 includes a radial magnetic bearing 14 and an axial / radial magnetic bearing 15.
  • the radial magnetic bearing 14 is formed by a radial magnetic bearing member 14a.
  • Radial magnetic bearing 15 is formed by an axial magnetic bearing member 15a and a radial magnetic bearing member 15b.
  • the Mag ⁇ netlageretti are received in the sealing shell 6, that the annular channel 12 between the radial magnetic bearing elements 14a, 15b is arranged.
  • the radial magnetic bearing 14 and the axial / radial magnetic bearing 15 are axially spaced from each other
  • the radial magnetic bearing elements 14a, 15b change ⁇ interact with the outer surface of the rotor shaft 4 to the Rotorwel ⁇ le 4 centrally, ie in a defined central axis, without contact in the balance to keep.
  • the axial magnetic bearing element 15 a interacts with an end face of a shaft shoulder 4 a facing the sealing shell 6 in order to support the rotor shaft 4 in an axially contactless manner.
  • the shaft ⁇ paragraph 4a carries a ventilation element 16, which ventilation channels (shown in phantom), which point away from the sealing shell 6.
  • exhaust steam of the turbine ⁇ process passes from the working chamber 3 of the steam turbine 1 in the Sperrdampf syndromem 10 and can after removal from the barrier ⁇ steam chamber 10 from the outside, for example via the Ventilati ⁇ onselement 16 via the distribution channel 11 of the end wall 2a the Ring channel 12 of the sealing shell 6 is supplied. From there it penetrates Abdampf in between the rotor shaft 4 on the one hand and the sealing shell 6 and the magnetic bearing elements 14a, 15a, 15b on the other hand formed sealing gap (not shown) and thus acts as a barrier medium for sealing the bearing housing 2 against the rotor shaft 4.
  • the Mag ⁇ netlageretti carry 14a , 15a, 15b also for sealing.
  • the collected in the Sperrdampf syndromem 10 Abdampf can also pre-temper the inwardly projecting part of the Dichtscha ⁇ le 6 with the radial magnetic bearing element 15 a received therein.
  • the magnetic bearing elements 14a, 15a, 15b can be kept in this way at an operating temperature below a maximum allowable temperature.
  • the maximum permissible temperature is 200 ° C, for example, but may vary depending on the type of used
  • the barrier vapor space 10 also allows a pre-tempering of the sealing shell 6 with the inner radial magnetic bearing 14. With sufficient cooling effect. kung via the annular channel 12 and possibly other cooling channels within ⁇ half of the sealing shell 6, the Sperrdampfhoffm 10 can also Wegge ⁇ let.
  • FIG. 2 shows a variant of a Magnetlagerele ⁇ element 20, which can also be understood as an independent embodiment of the invention. More specifically, FIG. 2 is a cross sectional view of a seal cup 6 with a Mag ⁇ netlagerelement 20 on a rotor shaft 4.
  • the Magnetlagerele ⁇ element 20 is a radial magnetic bearing element and 14a may correspond to the Radi ⁇ al magnetic bearing element in FIG. 1. However, the principle can be transferred to any other magnetic bearing element who ⁇ .
  • the magnetic bearing element 20 has a bearing body 21 and a disk pack 22 received therein. Between the rotor shaft 4 on the one hand and the
  • the disk pack 22 includes a plurality of first La ⁇ mellen 23 and a plurality of second fins 24th
  • the first fins 23 and second fins 24 are provided to produce a magnetic action, as is well known to those skilled in the art.
  • the first fins 23 and second fins 24 differ by their inner diameter, so that the first fins 23 are closer to the outer surface of the Rotorwel ⁇ le 4 than the second fins 24.
  • a gap distance of the first fins 23 is smaller than a gap distance the second fin 24.
  • the disk set 22 of the magnetic bearing element 20 can form a labyrinth seal with the rotor shaft 4.
  • Can on the rotor shaft 4 to ⁇ additionally be provided 26 to further improved sealing as a counterpart to the second disk 24 sealing plates.
  • the first fins and second fins 24 thus form a sequence of 1-2-1-2- ... -1.
  • This arrangement is per ⁇ but purely by way of example and to limit the invention in any way.
  • the sequence of first fins 23 and second La ⁇ mellen 24 may instead of the illustrated sequence 1-2-1-2- ... -1 -1 or even 1-1-1-1- ... 2-1-2 -1- ... -2 or 2-2-2 -... -2 or 1-3-1-3- ... -1 or any other sequence.
  • Varia ⁇ tion of the sequence and the sealing effect can be ge ⁇ controls specifically.
  • the principle of the invention to provide a magnetic bearing with a sealing action and make necessary optimized for sealing can be angewen ⁇ det in other applications.
  • the sealing saddle ⁇ le invention can be used with magnetic storage for any type of flow machine, machine, rotary machine or of technical equipment.
  • the principle of the present invention can also be considered from the Be ⁇ te of the magnetic bearing. Therefore, the present application also discloses a magnetic bearing assembly 13 for supporting a rotor shaft 4 of a technical device, preferably a rotary machine, in particular a turbomachine, more preferably a steam turbine 1, wherein the magnetic bearing assembly 13 at least one sealing ⁇ element (annular channel 12 and sealing gap), for sealing an interior of the technical device has against an exterior of the technical device.
  • This also an in ⁇ tegration of the sealing shell 6 and the bearing assembly 13 ver ⁇ more light, and there are also advantages of the invention described above, achieved.
  • Magnetic bearing elements of the magnetic bearing arrangement are also particularly advantageous
  • Sealing elements formed or contribute to the sealing at (La ⁇ gerspalt or labyrinth-shaped gap 15).
  • the housing 2 can in principle be used without further structural adjustment in order to achieve the advantages of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

La présente invention concerne une turbine à vapeur (1) comprenant un carter de turbine (2), un arbre de rotor (4) qui fait saillie dans un espace intérieur du carter de turbine (2), au moins une coque d'étanchéité (6) qui est disposée dans un logement d'enveloppe d'étanchéité (5) du carter de turbine (2) en réalisant l'étanchéité de l'arbre de rotor (4), et un ensemble palier magnétique (13) destiné à supporter l'arbre de rotor (4), caractérisée en ce qu'au moins un élément de palier magnétique (14a, 15a, 15b; 20) de l'ensemble palier magnétique (13) est disposé dans la coque d'étanchéité (6). Dans un autre mode de réalisation, l'invention concerne également une coque d'étanchéité (6), destinée à une turbine à vapeur (1) et servant à réaliser l'étanchéité d'un arbre de rotor (4) faisant saillie dans un carter (2) de la turbine à vapeur (1), caractérisée en ce qu'au moins un élément de palier magnétique (14a, 15a, 15b; 20) d'un ensemble palier magnétique (13) destiné à supporter l'arbre de rotor (4) est disposé dans la coque d'étanchéité (6).
EP15705295.2A 2014-05-22 2015-02-17 Turbine à vapeur avec coque d'étanchéité et palier magnétique disposé dans celle-ci Withdrawn EP3119993A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014209766.5A DE102014209766A1 (de) 2014-05-22 2014-05-22 Dampfturbine und Dichtschale für eine Dampfturbine
PCT/EP2015/053274 WO2015176830A1 (fr) 2014-05-22 2015-02-17 Turbine à vapeur avec coque d'étanchéité et palier magnétique disposé dans celle-ci

Publications (1)

Publication Number Publication Date
EP3119993A1 true EP3119993A1 (fr) 2017-01-25

Family

ID=52484488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15705295.2A Withdrawn EP3119993A1 (fr) 2014-05-22 2015-02-17 Turbine à vapeur avec coque d'étanchéité et palier magnétique disposé dans celle-ci

Country Status (3)

Country Link
EP (1) EP3119993A1 (fr)
DE (1) DE102014209766A1 (fr)
WO (1) WO2015176830A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108443320B (zh) * 2018-04-02 2019-10-11 江苏理工学院 一种变刚度径向永磁轴承
CN109026995B (zh) * 2018-07-20 2019-10-11 南京航空航天大学 一种抗磁悬浮微型轴承转子系统

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Publication number Priority date Publication date Assignee Title
US1339156A (en) * 1919-08-22 1920-05-04 Beldam William Robert Means for packing joints
US2883212A (en) * 1956-08-23 1959-04-21 City Nat Bank And Trust Compan Labyrinth type magnetic rotary seal
DE2515315A1 (de) * 1975-04-08 1976-10-21 Borsig Gmbh Lager und wellendichtung fuer turbomaschinen
CA1326476C (fr) * 1988-09-30 1994-01-25 Vaclav Kulle Compresseur a gaz muni de joints de gaz sec
US5111102A (en) * 1989-05-25 1992-05-05 Meeks Crawford R Magnetic bearing structure
DE4105258A1 (de) * 1991-02-20 1992-08-27 Abb Patent Gmbh Radiales magnetlager fuer einen rotor
EP2009286B1 (fr) * 2007-06-28 2010-07-28 Siemens Aktiengesellschaft Joint d'étanchéité d'arbre pour turbomachine
IT1400729B1 (it) * 2010-07-08 2013-07-02 Turboden Srl Dispositivo di tenuta di fluido per macchine rotanti.
DE102011005347B4 (de) * 2011-03-10 2013-11-07 Siemens Aktiengesellschaft Turbine mit einem Magnetlager und Verfahren zum Betreiben der Turbine
DE102011077803A1 (de) * 2011-06-20 2012-12-20 Siemens Aktiengesellschaft Kombinierte Kühlluft und Sperrluft für magnetgelagerte Maschinen

Non-Patent Citations (2)

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Title
None *
See also references of WO2015176830A1 *

Also Published As

Publication number Publication date
WO2015176830A1 (fr) 2015-11-26
DE102014209766A1 (de) 2015-11-26

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