DE1935872C3 - Disc-shaped impeller of a turbomachine - Google Patents
Disc-shaped impeller of a turbomachineInfo
- Publication number
- DE1935872C3 DE1935872C3 DE19691935872 DE1935872A DE1935872C3 DE 1935872 C3 DE1935872 C3 DE 1935872C3 DE 19691935872 DE19691935872 DE 19691935872 DE 1935872 A DE1935872 A DE 1935872A DE 1935872 C3 DE1935872 C3 DE 1935872C3
- Authority
- DE
- Germany
- Prior art keywords
- openings
- impeller
- flow channels
- flow
- disc
- 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.)
- Expired
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
- F01D5/022—Blade-carrying members, e.g. rotors with concentric rows of axial blades
-
- 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
- F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
- F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
- F01D1/026—Impact turbines with buckets, i.e. impulse turbines, e.g. Pelton turbines
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- 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
-
- 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
- F01D5/043—Blade-carrying members, e.g. rotors for radial-flow machines or engines of the axial inlet- radial outlet, or vice versa, type
- F01D5/048—Form or construction
-
- 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
- F01D5/12—Blades
- F01D5/14—Form or construction
-
- 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
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
- F02C3/045—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor having compressor and turbine passages in a single rotor-module
Description
Der Gegenstand des Hauptpatents 1933 070 ist ein scheibenförmiges Laufrad einer Strömungsmaschine mit im mittleren Bereich überwiegend radial durchströmten Strömungskanälen mit auf verschiedenen Umfangslinien in den beiden Stirnseiten des Laufrades angeordneten Öffnungen der Strömungskanäle. wobei die äußeren Öffnungen derart gestaltet sind, daß eine vorwiegend tangentiale, in Drehrichtung des Laufrades weisende und eine wesentlich kleinere axiale Komponente der Relativströmung des Strömungsmittel:; erzielt wird, und wobei die inneren Öffnungen derart gestaltet sind, daß eine axi lic Komponente der Strömung erzielt wird, dabei sind inThe subject of the main patent 1933 070 is a disc-shaped impeller of a turbomachine with predominantly radial in the middle area through flow channels with on different circumferential lines in the two end faces of the The impeller arranged openings of the flow channels. the outer openings being so designed are that a predominantly tangential one pointing in the direction of rotation of the impeller and one essential smaller axial component of the relative flow of the fluid :; is achieved, and being the inner Openings are designed so that an axial component of the flow is achieved, are in
ίο radialer Richtung verlaufende Trennwände vorgesehen, die der Begrenzung der Breite des Strömungskanals dienen, wobei sich die Trennwände von der äußeren iCante der äußeren Öffnungen bis zur inneren Kante Jer inneren Öffnungen erstrecken und in ihrem mittleren Bereich eben oder leicht gekrümmt und im Bereich der Öffnungen an den beiden Stirnseiten des Laufrades derart in axialer Richtung gekrümmt sind, daß sowohl an den äußeren öffnungen als auch an den inneren Öffnungen die Richtung der Rclativströinung vorwiegend tangential ist, und wobei die Begrenzungswände, die die Strömungskanalhöhe begrerzen, von innen nach außen mit doppeltter Krümmung verlaufen, so daß die Tangente der Erzeugenden der Begrenzungswände an den Öffnungen axial und im mittleren Bereich des Laufrades im wesentlichen radial gerichtet ist. Es liegt die Aufgabe vor, mit Hilfe dieses Laufrades weitere Einsparungen an Material- und Platzbedarf zu erzielen. Diese Aufgabe wird bei einem Laufrad der eingangs angegebenen Art dadurch gelöst, daß im Laufrad mindestens zwei Reihen von Strömungskanälen derart angeordnet sind, daß die inneren Begrenzungswände der Schaufelkanälc der jeweils äußeren Reihe und die äußeren Hegrcnzungswände der jevveils inncron Reihe über einen erheblichen Teil ihrer radialen Erstreckung mit geringem Abstand voneinander verlaufen. Eine derartige Anordi .mg ist besonders interessant, wenn die unterschiedlichen Reihen von Strömungskanälen je einer Arbcits- und Kraftnaschine angehören, die miteinander — wie z. B. hei GasUtrbincnprozessen ■— im Verbund arbeilen. In diesem Fall ermöglicht es eine solche Anordnung einen Teil der durch den Entspannungsvorgang freigesetzten mechanischen Energie im gleichen Laufrad /um Teil in Verdichtungsenergie umzuwandeln, so daß über die Welle nur noch die verbleibende mecha.iische Energie übertragen wird.ίο dividing walls running in the radial direction are provided, which serve to limit the width of the flow channel, the partition walls from the outer iCante of the outer openings extend to the inner edge of the inner openings and into their middle area flat or slightly curved and in the area of the openings on the two end faces of the impeller are curved in the axial direction in such a way that both at the outer openings as well as at the inner openings the direction of the relative flow is predominantly tangential, and where the boundary walls, which limit the height of the flow channel, are doubled from the inside to the outside Curvature run so that the tangent of the generatrix of the boundary walls at the openings is directed axially and in the central region of the impeller substantially radially. It is the one Task to achieve further savings in material and space requirements with the help of this impeller. This object is achieved in the case of an impeller of the type specified at the outset in that the impeller at least two rows of flow channels are arranged such that the inner boundary walls the blade channel of the respective outer row and the outer limiting walls of the each inncron row over a considerable part of its radial extent with a small distance from each other get lost. Such an arrangement is special interesting when the different rows of flow channels each have a work machine and a power machine belong to each other - such. B. in gas infrastructure processes ■ - work in a network. In In this case, such an arrangement allows a part of the released by the relaxation process mechanical energy in the same impeller / to convert part into compression energy, see above that over the shaft only the remaining mechanical Energy is transferred.
Ausführungsbcispiele der Erfindung sind in der Zeichnung dargestellt und im folgenden beschrieben.Exemplary embodiments of the invention are shown in the drawing and described below.
Fig. 1 ist eine Kombination von zwei parallelgeschaltetcn Entspannungs-Slrömungskanälen dargestellt; Fig. 1 is a combination of two connected in parallel Relief flow channels shown;
F i g. 2 zeigt eine Kombination von drei Reihen von Strömimgskanälen im gleichen Laufrad.F i g. Figure 2 shows a combination of three rows of flow channels in the same impeller.
Es ist eine Reihe Entspannungs-Strömungskanäle ri zwischen zwei Reihen Vcrdichtimgs-Slrömungskanälen bv b., angeordnet. Die Gestaltung der radial übereinander angeordneten Reihen von Strömungskanälen ermöglicht es, die Begrenzungswände der Entspannungs-Strömungskanäle durch das Arbeitsmittel der dicht angrenzenden VcrdichUings-Strömungskanälc zu kühlen und über Kühlkaniilc in den Trennwänden der Entspannungs-Strönuingskunälc, die mit den benachbarten VerdiclHungs-Slrönumgskanälcn in Verbindung stehen, eine weitere Kühlung der Entspannungs-Strömungskanäle herbeizuführen.A row of expansion flow channels ri is arranged between two rows of compression flow channels b v b . The design of the rows of flow channels arranged radially one above the other makes it possible to cool the boundary walls of the expansion flow channels by the working medium of the closely adjacent compression flow channels and via cooling channels in the partition walls of the expansion flow channels, which are connected to the adjacent compression channels to bring about further cooling of the expansion flow channels.
Claims (3)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691935872 DE1935872C3 (en) | 1969-07-15 | 1969-07-15 | Disc-shaped impeller of a turbomachine |
CH929870A CH519652A (en) | 1969-06-30 | 1970-06-19 | Turbo machine |
US00048121A US3726605A (en) | 1969-06-30 | 1970-06-22 | Fluid-flow machine |
BE752677D BE752677A (en) | 1969-06-30 | 1970-06-29 | FLUID FLOW MACHINE |
FR7024028A FR2051435A5 (en) | 1969-06-30 | 1970-06-29 | |
GB31726/70A GB1301002A (en) | 1969-06-30 | 1970-06-30 | Improvements relating to fluid-flow machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691935872 DE1935872C3 (en) | 1969-07-15 | 1969-07-15 | Disc-shaped impeller of a turbomachine |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1935872A1 DE1935872A1 (en) | 1971-02-04 |
DE1935872B2 DE1935872B2 (en) | 1973-04-05 |
DE1935872C3 true DE1935872C3 (en) | 1973-10-18 |
Family
ID=5739845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19691935872 Expired DE1935872C3 (en) | 1969-06-30 | 1969-07-15 | Disc-shaped impeller of a turbomachine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1935872C3 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1572902A (en) * | 1976-04-29 | 1980-08-06 | Metal Box Co Ltd | Closures for liquid product containers |
DE2821233C2 (en) * | 1978-05-16 | 1983-07-28 | GETEWENT Gesellschaft für technische und wissenschaftliche Energieumsatzentwicklungen mbH, 8950 Kaufbeuren | Disc-shaped impeller of a turbomachine |
FR2513312B1 (en) * | 1981-09-24 | 1986-03-28 | Bedue Abel | NOVEL TURBINE WHEEL DESIGN, SUCH AS A RELAXATION TURBINE, AND METHOD OF USING SUCH A WHEEL |
DE3811007A1 (en) * | 1988-03-31 | 1989-06-22 | Daimler Benz Ag | EXHAUST TURBOCHARGER FOR AN INTERNAL COMBUSTION ENGINE |
-
1969
- 1969-07-15 DE DE19691935872 patent/DE1935872C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1935872B2 (en) | 1973-04-05 |
DE1935872A1 (en) | 1971-02-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
EGA | New person/name/address of the applicant |