DE265153C - - Google Patents
Info
- Publication number
- DE265153C DE265153C DENDAT265153D DE265153DA DE265153C DE 265153 C DE265153 C DE 265153C DE NDAT265153 D DENDAT265153 D DE NDAT265153D DE 265153D A DE265153D A DE 265153DA DE 265153 C DE265153 C DE 265153C
- Authority
- DE
- Germany
- Prior art keywords
- blades
- cast
- impeller
- wheel hub
- another
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying rotors
- F03B3/121—Blades, their form or construction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Turbines (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die gebräuchlichen Turbinenlaufräder bestehen bekanntlich aus Gußnaben, in die die Schaufeln eingesetzt oder eingegossen sind. Ein Nachteil dieser Ausführung liegt einer- · seits offenbar darin, daß infolge des bedeutenden Druckes der Wassermassen ein unbeabsichtigtes Herauspressen von Schaufeln vorkommen kann und anderseits durch das erhebliche Gewicht der Gußmassen des Laufrades ein großer Spurzapfendruck auftritt.The common turbine runners are known to consist of cast hubs into which the Blades are inserted or cast. A disadvantage of this design is a- On the one hand, it is evident that, as a result of the considerable pressure of the water masses, an unintentional Forcing out of blades can occur and on the other hand by the considerable weight of the cast mass of the impeller a large journal pressure occurs.
Zweck der Erfindung ist die Beseitigung dieses Mißstandes durch die Herstellung der Laufräder aus einzelnen Schaufelelementen derart, daß der innere und der äußere Laufkranz durch die Form der untereinander verbundenen und einander gleichen Schaufeln gebildet wird.The purpose of the invention is to eliminate this deficiency by producing the Impellers made of individual blade elements in such a way that the inner and outer tread formed by the shape of the interconnected and identical blades will.
In der Zeichnung ist zur Erklärung zum besseren Verständnis neben einer beispielsweisen Ausführung des Erfindungsgegenstandes eine bekannte Bauart wiedergegeben.In the drawing there is an example next to an explanation for better understanding Execution of the subject invention reproduced a known type.
Fig. ι zeigt die bekannte und Fig. 2 die neue Laufradausführung im Mittel- und einem Querschnitt.Fig. Ι shows the known and Fig. 2 shows the new impeller design in the middle and one Cross-section.
Nach der üblichen Bauart (Fig. 1) weist das Laufrad zwei Gußkränze α, b auf, in die die Schaufeln c in der Regel eingesetzt oder eingegossen sind. An das Laufrad schließt sich bekanntlich der Leitkranz d an, indem die Leitschaufeln e um Bolzen f drehbar gelagert sind.According to the usual design (FIG. 1), the impeller has two cast rings α, b into which the blades c are usually inserted or cast. As is known, the guide ring d adjoins the impeller, in that the guide vanes e are rotatably mounted about bolts f.
Bei dem Turbinenlaufrad nach der Erfindung (Fig. 2 und 3) kommt hingegen lediglich eine Gußradnabe g. in Anwendung, während der gesamte Laufradkörper aus einander gleichen Schaufeln oder Schaufelelementen h gebildet ist, die zur Erzielung der erforderlichen Festigkeit untereinander und mit der Gußradnabe g durch Schrauben, Niete o. dgl. verbunden sind.In the turbine impeller according to the invention (FIGS. 2 and 3), however, only a cast wheel hub g is used. in use, while the entire impeller body is formed from blades or blade elements h which are identical to one another and which are connected to one another and to the cast wheel hub g by screws, rivets or the like in order to achieve the required strength.
Der Vorteil dieses neuen Aufbaues von Türbinenlaufrädern besteht nicht nur in der erheblichen Verminderung des Gewichtes und einer dadurch bedingten Herabsetzung des Spurzapfendruckes, sondern auch in einer Vergrößerung des Durchflußquerschnittes bei sonst gleichen Laufradabmessungen.The advantage of this new structure of door wheel running wheels consists not only in the considerable reduction in weight and a consequent reduction in the Track pin pressure, but also in an enlargement of the flow cross-section with otherwise same impeller dimensions.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE265153C true DE265153C (en) |
Family
ID=522410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT265153D Active DE265153C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE265153C (en) |
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- DE DENDAT265153D patent/DE265153C/de active Active
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