CH210879A - Disc on centrifugal machines, in particular gas or steam turbines. - Google Patents

Disc on centrifugal machines, in particular gas or steam turbines.

Info

Publication number
CH210879A
CH210879A CH210879DA CH210879A CH 210879 A CH210879 A CH 210879A CH 210879D A CH210879D A CH 210879DA CH 210879 A CH210879 A CH 210879A
Authority
CH
Switzerland
Prior art keywords
disc
steam turbines
particular gas
centrifugal machines
sealing member
Prior art date
Application number
Other languages
German (de)
Inventor
Hermes Patentverwertun Haftung
Original Assignee
Hermes Patentverwertungs 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 Hermes Patentverwertungs Gmbh filed Critical Hermes Patentverwertungs Gmbh
Publication of CH210879A publication Critical patent/CH210879A/en

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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
    • F01D5/041—Blade-carrying members, e.g. rotors for radial-flow machines or engines of the Ljungström type
    • 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
    • F01D11/005—Sealing means between non relatively rotating elements
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
    • F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Description

  

  Scheibe an     Kreiselmaschinen,        insbesondere    Gas- oder     Dampfturbinen.       Die Erfindung betrifft eine umlaufende  oder feststehende Scheibe an Kreiselmaschi  nen, insbesondere Dampf- oder Gasturbinen,  die mit ihrem Träger (Welle oder Gehäuse)  durch ein     elastisches    Dichtungsglied verbun  den und     beiderseits    vom Arbeitsmittel     beauf-          schlagt        ist,    wobei jedoch die Temperaturen  zu beiden Seiten der Scheibe verschieden sind.

    Bei Scheiben von grossem Durchmesser mit  grossem einseitigen Überdruck, die ausserdem  noch im Gebiete hoher Temperaturen arbei  ten, sind ,die Beanspruchungen des elastischen  Dichtungsgliedes besonders hoch. Um diese       Beanspruchungen    herabzusetzen, soll gemäss  der Erfindung das Dichtungsglied auf der  jenigen Seite der Scheibe angeordnet werden,  die zu dem Raum niedriger Temperatur ge  hört. Hierdurch kann, wenn die gleiche Be  anspruchung des Dichtungselementes zu  gelassen wird, infolge der niedrigen Tempe  ratur entweder das Dichtungsglied     dünner,          also    elastischer ausgeführt werden, oder man    kann     mit    einem Werkstoff auskommen, der       billiger    und leichter zu beschaffen ist.

   Ausser  dem besteht die Möglichkeit, den     Werkstoff     nach     besonderen    Anforderungen zu wählen  (Rostsicherheit, Säurefestigkeit und     dergl.).     



  Ein Ausführungsbeispiel des Erfindungs  gegenstandes ist in der Abbildung dargestellt.  Es bezeichnet     1,die    Welle, 2 eine doppelt     be-          schaufelte    Laufscheibe einer Dampfturbine  mit den aus dem Material der Scheibe her  ausgearbeiteten Schaufelringen 3. Zur Ver  bindung zwischen Scheibe und Welle ist     ein     elastisches     Dichtungsglied    4 vorgesehen. Die       Beaufschlagung    der     Scheibe    2     ist    derart, dass  im Raum 5 hoher Druck und hohe Tempe  ratur, im Raum 6 dagegen niedriger     Druck     und niedrige Temperatur herrschen.

   Gemäss  der     Erfindung    ist, das Dichtungsglied 4  so angeordnet, dass es im Raum 6 vor  der niedrigen Temperatur liegt. Befestigt  ist das Dichtungselement 4 an der Scheibe  2 durch eine     Schraubenverbindung    7 und      an der Welle 1 durch eine     Anpressverbin-          dung    B. Eine     Knaggenverbindung    9 dient  der     Übertragung    des Drehmomentes von der  Scheibe 2 auf die Welle 1, so dass der Ring 4  von     Drehmomentsbeanspruchungen    entlastet  ist.  



  In dem Ausführungsbeispiel ist an  genommen, dass das Arbeitsmittel zunächst  die auf der Seite höheren Druckes angeord  nete     Beschaufelung    radial von innen nach  aussen und anschliessend die auf der Seite  niederen Druckes angeordnete     Besehaufelun-          radial    von aussen nach innen durchströmt. Das  Arbeitsmittel gelangt nach durchgeführter  Entspannung in den Raum 6 und wird von  hier aus     weitergeleitet.    Das Ausführungs  beispiel zeigt, dass das Dichtungselement der  art angeordnet ist, dass es vom strömenden  Arbeitsmittel bespült wird.



  Disc on centrifugal machines, in particular gas or steam turbines. The invention relates to a rotating or stationary disc on centrifugal machines, in particular steam or gas turbines, which are connected to their carrier (shaft or housing) by an elastic sealing member and acted upon by the working medium on both sides, although the temperatures on both sides of the Disc are different.

    In the case of disks of large diameter with a large overpressure on one side, which also work in areas of high temperatures, the stresses on the elastic sealing member are particularly high. In order to reduce these stresses, according to the invention, the sealing member should be arranged on the side of the disc that belongs to the low temperature room. As a result, if the same loading of the sealing element is allowed to, due to the low tempe temperature either the sealing member can be made thinner, so more elastic, or you can get by with a material that is cheaper and easier to obtain.

   There is also the option of choosing the material according to special requirements (rust resistance, acid resistance and the like).



  An embodiment of the subject invention is shown in the figure. It denotes 1, the shaft, 2 a double-bladed rotor disk of a steam turbine with the blade rings 3 made from the material of the disk. An elastic sealing member 4 is provided for the connection between disk and shaft. The application of the disk 2 is such that in space 5 high pressure and high tempe temperature, whereas in space 6 there is low pressure and low temperature.

   According to the invention, the sealing member 4 is arranged so that it is in the space 6 before the low temperature. The sealing element 4 is fastened to the disk 2 by a screw connection 7 and to the shaft 1 by a pressing connection B. A lug connection 9 is used to transmit the torque from the disk 2 to the shaft 1 so that the ring 4 is relieved of torque loads is.



  In the exemplary embodiment, it is assumed that the working medium initially flows through the blading arranged on the higher pressure side radially from the inside to the outside and then through the blading arranged on the lower pressure side radially from the outside to the inside. After the relaxation has been carried out, the work equipment arrives in room 6 and is forwarded from here. The embodiment example shows that the sealing element is arranged in such a way that it is flushed by the flowing working medium.

Claims (1)

PATRNTANSPRUCII: Scheibe an Kreiselmaschinen, insbeson dere Gas- oder Dampfturbinen, die mit, ihrem Träger durch ein elastisches Dichtungsglied verbunden und beiderseits vom Arbeitsmittel beaufschlagt ist, wobei die Temperaturen zu beiden Seiten der Scheibe verschieden sind, dadurch gekennzeichnet, dass das elastische Dichtungsglied auf der Seite niederer Tem peratur angeordnet ist. <B>UNTERANSPRÜCHE:</B> Scheibe nach Patentanspruch, dadurch ge kennzeichnet, dass das Dichtungselement der art angeordnet ist, dass es vom strömenden Arbeitsmittel bespült wird. PATRNTANSPRUCII: Disc on centrifugal machines, in particular gas or steam turbines, which are connected to their carrier by an elastic sealing member and acted upon on both sides by the working medium, the temperatures on both sides of the disc are different, characterized in that the elastic sealing member on the Side lower tem perature is arranged. <B> SUBClaims: </B> Disc according to patent claim, characterized in that the sealing element is arranged in such a way that it is flushed by the flowing working medium.
CH210879D 1938-07-23 1939-07-07 Disc on centrifugal machines, in particular gas or steam turbines. CH210879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE531442X 1938-07-23

Publications (1)

Publication Number Publication Date
CH210879A true CH210879A (en) 1940-08-15

Family

ID=6554968

Family Applications (1)

Application Number Title Priority Date Filing Date
CH210879D CH210879A (en) 1938-07-23 1939-07-07 Disc on centrifugal machines, in particular gas or steam turbines.

Country Status (4)

Country Link
CH (1) CH210879A (en)
FR (1) FR858152A (en)
GB (1) GB531442A (en)
NL (1) NL55300C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6447252B1 (en) * 1999-05-07 2002-09-10 Rolls-Royce Plc Rotor-shaft connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6447252B1 (en) * 1999-05-07 2002-09-10 Rolls-Royce Plc Rotor-shaft connector

Also Published As

Publication number Publication date
FR858152A (en) 1940-11-19
NL55300C (en) 1943-09-16
GB531442A (en) 1941-01-03

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