DE1169958B - Sealing ring for the radial gap between a rotor blade ring and the housing of a hot steam or hot gas turbine - Google Patents

Sealing ring for the radial gap between a rotor blade ring and the housing of a hot steam or hot gas turbine

Info

Publication number
DE1169958B
DE1169958B DEV20793A DEV0020793A DE1169958B DE 1169958 B DE1169958 B DE 1169958B DE V20793 A DEV20793 A DE V20793A DE V0020793 A DEV0020793 A DE V0020793A DE 1169958 B DE1169958 B DE 1169958B
Authority
DE
Germany
Prior art keywords
housing
ring
projections
sealing ring
rotor blade
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
DEV20793A
Other languages
German (de)
Inventor
Paul Stich
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.)
GASTURBINENBAU und ENERGIEMASC
Original Assignee
GASTURBINENBAU und ENERGIEMASC
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 GASTURBINENBAU und ENERGIEMASC filed Critical GASTURBINENBAU und ENERGIEMASC
Priority to DEV20793A priority Critical patent/DE1169958B/en
Publication of DE1169958B publication Critical patent/DE1169958B/en
Pending 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator

Landscapes

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

Description

Dichtungsring für den Radialspalt zwischen einem Laufschaufelkranz und dem Gehäuse einer Heißdampf- oder Heißgasturbine Die Erfindung betrifft einen Dichtungsring für den Radialspalt zwischen einem Laufschaufelkranz und dem Gehäuse einer Heißdampf- oder Heißgasturbine, der an seiner dem Laufrad zugewandten Fläche mit einer durch die Schaufeln leicht abschabbaren Masse beschichtet ist, im Gehäuse in kaltem Zustand lose und erst in heißem Zustand infolge größerer Wärmedehnung mit Pressung anliegt und der durch drei oder mehr Vorsprünge, die in Ausnehmungen des Gehäuses eingreifen, zentrisch gehalten wird.Sealing ring for the radial gap between a rotor blade ring and the housing of a superheated steam or hot gas turbine. The invention relates to a Sealing ring for the radial gap between a rotor blade ring and the housing a superheated steam or hot gas turbine on its surface facing the impeller is coated with a mass easily scraped off by the blades, in the housing loose when cold and only when hot as a result of greater thermal expansion with pressure applied and by three or more projections that are in recesses engage the housing, is held centrally.

Beim bekannten Ring dieser Art sind die Vorsprünge Stifte, die in radialen Bohrungen des Ringes und des Gehäuses sitzen. Diese Bauart hat den Nachteil, daß an diesen Bohrungen des Ringes die Masseschicht beim Bohren oder im Betriebe leicht abbröckelt. Dies soll die Erfindung vermeiden.In the known ring of this type, the projections are pins which are in seated radial bores of the ring and the housing. This type of construction has the disadvantage that at these holes in the ring the mass layer when drilling or in operation easily crumbles. The invention is intended to avoid this.

Die Erfindung besteht darin, daß die Vorsprünge an einer der Stimflächen des Ringes angeordnet sind, der Ring gegen Axialverschiebung durch Stimfiächen des Gehäuses gehalten wird und die Ausnehmungen des Gehäuses radiale Nuten einer der Gehäusestimflächen sind.The invention consists in that the projections on one of the end faces of the ring are arranged, the ring against axial displacement by end faces of the Housing is held and the recesses of the housing one of the radial grooves Housing faces are.

Die Vorsprünge können aus dem Dichtungsring herausgearbeitet sein. Sie können aber auch durch Stifte gebildet werden, die in achsparallele Bohrungen des Ringes eingesetzt sind.The projections can be machined from the sealing ring. But they can also be formed by pins that are in axially parallel holes of the ring are used.

Die Zeichnung zeigt die erste jener Bauarten, und zwar in F ig. 1 in meridionalem Schnitt zwei solche Ringe nebst einem dazwischen angeordneten Leitschaufelkranz und dem zugehörigen Teil des Gehäuses, F i g. 2 dasselbe in Ansicht in Achsrichtung, F i g. 3 einen vergrößerten Ausschnitt aus F i g. 1, F i g. 4 dasselbe in Ansicht in Achsrichtung.The drawing shows the first of those types, namely in Fig. 1, in meridional section, two such rings together with a guide vane ring arranged between them and the associated part of the housing, FIG. 2 the same in view in the axial direction, F i g. 3 shows an enlarged detail from FIG. 1, Fig. 4 the same in view in the axial direction.

Es bedeutet darin 1 mehrere Ringe, aus denen das Gehäuse besteht, ferner 2 den äußeren und 3 den inneren Tragring des Leitschaufelkranzes und 4 dessen Schaufeln, 5 die Dichtungsri-nge, 6 und 7 Halteringe, die die Dichtungsringe axial festhalten, 8 die Vorsprünge der Dichtungsringe und 9 die radialen Nuten des Gehäuses, in die die Vorsprünge eingreifen.It means 1 several rings that make up the housing, 2 the outer and 3 the inner support ring of the guide vane ring and 4 its blades, 5 the sealing rings, 6 and 7 retaining rings that hold the sealing rings axially, 8 the projections of the Sealing rings and 9 the radial grooves of the housing in which the projections engage.

Claims (2)

Patentanspräche: 1. Dichtungsring für den Radialspalt zwischen einem Laufschaufelkranz und dem Gehäuse einer Heißdampf- oder Heißgastarbine, der an seiner dem Laufrad zugewandten Fläche mit einer durch die Schaufeln leicht abschabbaren Masse beschichtet ist, im Gehäuse in kaltem Zustand lose und erst in heißem Zustand infolge größerer Wärmed-ehnung mit Pressung anliegt und der durch drei oder mehr Vorsprünge, die in Ausnehmungen des Gehäuses eingreifen, zentrisch gehalten wird, dadurch gekennzeichnet, daß die Vorsprünge an einer der Stirnflächen des Ringes angeordnet sind, der Ring gegen Axialverschiebung durch Stirnflächen des Gehäuses gehalten wird und, die Ausnehmungen des Gehäuses radiale Nuten einer der Gehäusestimflächen sind. Patent claims: 1. Sealing ring for the radial gap between a rotor blade ring and the housing of a superheated steam or hot gas carbine, which is coated on its surface facing the impeller with a compound that can be easily scraped off by the blades, loose in the housing in the cold state and only in the hot state as a result greater heat insulation is applied with pressure and which is held centrally by three or more projections which engage in recesses in the housing, characterized in that the projections are arranged on one of the end faces of the ring, the ring is held against axial displacement by end faces of the housing and, the recesses of the housing are radial grooves of one of the housing end faces. 2. Dichtungsring nach Anspruch 1, dadurch gekennzeichnet, daß die Vorsprünge durch Stifte gebildet werden, die in achsparallelen Bohrungen des Ringes sitzen. In Betracht gezogene Druckschriften: Patentschrift Nr. 20 342 des Amts für Erfindungs-und Patentwesen in der sowjetischen Besatzungszone Deutschlands; schweizerische Patentschrift Nr. 345 353. 2. Sealing ring according to claim 1, characterized in that the projections are formed by pins which sit in axially parallel bores of the ring. Publications considered: Patent No. 20,342 of the Office for Invention and Patents in the Soviet Occupation Zone of Germany; Swiss patent specification No. 345 353.
DEV20793A 1961-06-13 1961-06-13 Sealing ring for the radial gap between a rotor blade ring and the housing of a hot steam or hot gas turbine Pending DE1169958B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV20793A DE1169958B (en) 1961-06-13 1961-06-13 Sealing ring for the radial gap between a rotor blade ring and the housing of a hot steam or hot gas turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV20793A DE1169958B (en) 1961-06-13 1961-06-13 Sealing ring for the radial gap between a rotor blade ring and the housing of a hot steam or hot gas turbine

Publications (1)

Publication Number Publication Date
DE1169958B true DE1169958B (en) 1964-05-14

Family

ID=7578755

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV20793A Pending DE1169958B (en) 1961-06-13 1961-06-13 Sealing ring for the radial gap between a rotor blade ring and the housing of a hot steam or hot gas turbine

Country Status (1)

Country Link
DE (1) DE1169958B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20342C (en) * e. F. abraham in Jungen bei Schwetz, Westpreufsen Cart plow with movable self-guidance and adjustable furrow wheel
CH345353A (en) * 1955-08-17 1960-03-31 Gen Motors Corp Turbomachine stator for axial flow machines and method for making the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20342C (en) * e. F. abraham in Jungen bei Schwetz, Westpreufsen Cart plow with movable self-guidance and adjustable furrow wheel
CH345353A (en) * 1955-08-17 1960-03-31 Gen Motors Corp Turbomachine stator for axial flow machines and method for making the same

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