CH482914A - Gas turbine rotor with cover plate for supplying the cooling air to an end face of the rotor of a combustion turbine at high speed - Google Patents
Gas turbine rotor with cover plate for supplying the cooling air to an end face of the rotor of a combustion turbine at high speedInfo
- Publication number
- CH482914A CH482914A CH1272167A CH1272167A CH482914A CH 482914 A CH482914 A CH 482914A CH 1272167 A CH1272167 A CH 1272167A CH 1272167 A CH1272167 A CH 1272167A CH 482914 A CH482914 A CH 482914A
- Authority
- CH
- Switzerland
- Prior art keywords
- rotor
- face
- cover plate
- cooling air
- supplying
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title claims description 12
- 238000002485 combustion reaction Methods 0.000 title claims description 7
- 239000007787 solid Substances 0.000 description 1
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
- F01D5/08—Heating, heat-insulating or cooling means
- F01D5/081—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
Gasturbinenläufer mit Deckscheibe zur Zuleitung der Kühlluft an eine Stirnseite des Läufers einer Verbrennungsturbine mit hoher Drehzahl Die Erfindung bezieht sich auf einen Gasturbinen läufer mit Deckscheibe zur Zuleitung der Kühlluft an eine Stirnseite des Läufers einer Verbrennungsturbine mit hoher Drehzahl. Bei den Verbrennungsturbinen wendet man häufig die Kühlung des Läufers an, bei der die Befestigung der Laufschaufeln mit Kühlluft durchgeblasen wird.
Die Luft wird unter die Schaufel- füsse mittels einer Deckscheibe geleitet, die an einer Stirnseite des Läufers einen Zuleitungskanal bildet. Die Deckscheiben sind gewöhnlich mit dem Innendurch messer am Läufer zentriert.
Bei Verbrennungsturbinen mit hoher Drehzahl wächst die Beanspruchung der Scheibe durch die zentrifugalen Kräfte in einer Weise, dass die Deckscheibe, die eigent lich eine frei rotierende Kreisringscheibe bildet, hin sichtlich ihrer Festigkeit nicht mehr genügt.
Die Erfindung setzt sich die Aufgabe, diesen Nach teil zu beseitigen. Beim erfindungsgemässen Gasturbi- nenläufer mit Deckscheibe zur Zuleitung der Kühlluft an eine Stirnseite des Läufers einer Verbrennungstur bine mit hoher Drehzahl ist erfindungsgemäss an der Stirnseite des Läufers ein fester ringförmiger Ansatz an geformt und die Deckscheibe mit einer Tragnabe ver sehen, die dem festen Ansatz an der Stirnseite des Läu fers formschlüssig angepasst ist, wobei die Kanäle für die Kühlluft in der Tragnabe und im festen Ansatz an der Stirnseite des Läufers ausgebildet sind.
Ein Ausführungsbeispiel der erfindungsgemässen Deckscheibe, bei der die Kühlluft aus dem Hohlraum im Läufer zugeführt wird, ist anhand der Zeichnung veranschaulicht.
An der Stirnseite des Läufers ist ein fester, ring förmiger Ansatz 1 angeformt, dem die Tragnabe 2 der Deckscheibe 3 formschlüssig angepasst ist. Die Kühlluft strömt vom Hohlraum des Läufers durch Aus- nehmungen oder Schlitze 4 in der Tragnabe 2 und durch Öffnungen 5 im festen Ansatz 1 in die Schaufelnuten. Die gesamte Deckscheibe liegt axial an der Stirnseite des festen Ansatzes an und ist beispielsweise mit Schrauben befestigt. Auf diese Weise wird die Beanspruchung der Deckscheibe erheblich, vermindert denn der feste An satz an der Stirnseite des Läufers begrenzt die radialen Deformationen der Deckscheibe.
Gas turbine rotor with cover plate for supplying the cooling air to an end face of the rotor of a combustion turbine at high speed. The invention relates to a gas turbine rotor with cover plate for supplying the cooling air to an end face of the rotor of a combustion turbine at high speed. In the case of combustion turbines, rotor cooling is often used, in which the attachment of the rotor blades is blown through with cooling air.
The air is guided under the blade roots by means of a cover plate which forms a feed channel on one end of the rotor. The cover disks are usually centered with the inside diameter on the rotor.
In the case of high-speed combustion turbines, the stress on the disk due to the centrifugal forces increases in such a way that the cover disk, which actually forms a freely rotating annular disk, is no longer sufficient in terms of its strength.
The invention has the task of eliminating this part after. In the gas turbine rotor according to the invention with a cover plate for supplying the cooling air to an end face of the rotor of a combustion turbine at high speed, according to the invention, a fixed annular shoulder is formed on the end face of the rotor and the cover plate has a support hub which see the fixed attachment on the Face of the runner is positively adapted, the channels for the cooling air being formed in the support hub and in the fixed attachment on the face of the runner.
An embodiment of the cover disk according to the invention, in which the cooling air is supplied from the cavity in the rotor, is illustrated with the aid of the drawing.
On the end face of the rotor, a solid, ring-shaped extension 1 is formed, to which the support hub 2 of the cover plate 3 is positively adapted. The cooling air flows from the cavity of the rotor through recesses or slots 4 in the support hub 2 and through openings 5 in the fixed attachment 1 into the blade grooves. The entire cover plate rests axially on the end face of the fixed attachment and is fastened with screws, for example. In this way, the stress on the cover plate is considerably reduced, because the fixed attachment to the face of the rotor limits the radial deformations of the cover plate.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1272167A CH482914A (en) | 1967-09-12 | 1967-09-12 | Gas turbine rotor with cover plate for supplying the cooling air to an end face of the rotor of a combustion turbine at high speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1272167A CH482914A (en) | 1967-09-12 | 1967-09-12 | Gas turbine rotor with cover plate for supplying the cooling air to an end face of the rotor of a combustion turbine at high speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH482914A true CH482914A (en) | 1969-12-15 |
Family
ID=4385754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1272167A CH482914A (en) | 1967-09-12 | 1967-09-12 | Gas turbine rotor with cover plate for supplying the cooling air to an end face of the rotor of a combustion turbine at high speed |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH482914A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997044569A1 (en) * | 1996-05-17 | 1997-11-27 | Westinghouse Electric Corporation | Turbomachine rotor cooling |
-
1967
- 1967-09-12 CH CH1272167A patent/CH482914A/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997044569A1 (en) * | 1996-05-17 | 1997-11-27 | Westinghouse Electric Corporation | Turbomachine rotor cooling |
| US5755556A (en) * | 1996-05-17 | 1998-05-26 | Westinghouse Electric Corporation | Turbomachine rotor with improved cooling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8092152B2 (en) | Device for cooling slots of a turbomachine rotor disk | |
| US3393862A (en) | Bladed rotors | |
| US8087879B2 (en) | Device for cooling the slots of a rotor disk in a turbomachine having two air feeds | |
| GB571205A (en) | Improvements in and relating to rotors for multistage turbo-machines | |
| US2497151A (en) | Multidisk rotor | |
| DE102010064047A1 (en) | Fluid flow machine has housing with fluid guiding housing and bearing housing that is connected with fluid guiding housing, where impeller is mounted in fluid guiding housing over central impeller shaft in rotating manner | |
| US20200277866A1 (en) | Rotor, turbine equipped with such a rotor and turbomachine equipped with such a turbine | |
| DE1628383B2 (en) | Multi-stage counter-rotating axial compressor | |
| US9371742B2 (en) | Set of rotor disks for a turbine engine | |
| GB1217275A (en) | Gas turbine engine axial flow multi-stage compressor | |
| GB1266080A (en) | ||
| GB1510196A (en) | Rotor wheel for high-speed turbo-machines | |
| DE3041157A1 (en) | GAS TURBINE ENGINE | |
| CH482914A (en) | Gas turbine rotor with cover plate for supplying the cooling air to an end face of the rotor of a combustion turbine at high speed | |
| DE2018077A1 (en) | Gas turbine turbofan engine | |
| US3042366A (en) | Axial flow gas turbine | |
| US3077297A (en) | Bladed rotors | |
| DE1751093C3 (en) | Gas turbine power plant | |
| US3282561A (en) | Turbine rotors | |
| DE735392C (en) | Device for cooling gas turbine blades | |
| DE621436C (en) | Radial steam or gas turbine | |
| GB1020896A (en) | Improvements in or relating to impellers for compressors | |
| DE534645C (en) | Wheel for radially loaded steam turbines with subsequent, axially loaded blades | |
| DE580985C (en) | Radially pressurized double-flow overpressure turbine with fixed guide device | |
| DE860295C (en) | Blade carrier for radially loaded gas or steam turbines with blades attached only on one side |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |