CH389769A - Synchronous generator with housing surrounded by water and driven by a bulb turbine - Google Patents
Synchronous generator with housing surrounded by water and driven by a bulb turbineInfo
- Publication number
- CH389769A CH389769A CH40662A CH40662A CH389769A CH 389769 A CH389769 A CH 389769A CH 40662 A CH40662 A CH 40662A CH 40662 A CH40662 A CH 40662A CH 389769 A CH389769 A CH 389769A
- Authority
- CH
- Switzerland
- Prior art keywords
- generator
- water
- synchronous generator
- shaft
- driven
- Prior art date
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
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/10—Submerged units incorporating electric generators or motors
- F03B13/105—Bulb groups
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
-
- 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)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
- Motor Or Generator Cooling System (AREA)
Description
Synchrongenerator mit wasserumströmtem Gehäuse und Antrieb durch eine Rohrturbine In Wasserkraftanlagen mit kleinem Nutzgefälle, z. B. bei Flusskraftwerken, kommen neuerdings im mer häufiger Rohrturbinen mit in der Wasserfliess- richtung schräg liegender Achse zur Anwendung. Sie besitzen hydraulische Vorteile und verlangen weniger aufwendige Bauwerke. Eine derartige Bauart bietet die Möglichkeit, die Wasserführung z. B. sowohl im Zulauf zur Turbine als auch im Ablauf, also in der Turbinenkammer und dem Saugrohr, hydraulisch flüssiger zu gestalten.
Es sind Anordnungen bekannt geworden, bei de nen die Generatoren in einem wasserumströmten birnenartigen Gehäuse untergebracht sind. Dieser Lö sung steht die Forderung der Zugänglichmachung des Generators zum Zwecke der Wartung entgegen. Man hat diese Schwierigkeit durch die Anordnung von breiten begehbaren Stützschaufeln oder durch die Anordnung des Generators in einem nach oben offenen Betonschacht zu beherrschen versucht, wo bei jedoch in beiden Fällen ein Teil der Vorteile der Rohrturbinenanordnung verloren geht.
Die Zugänglichkeit des Generatorinneren ist vor allem zur betriebsmässigen Wartung der Verschleiss- teile, das sind insbesondere die Bürsten auf den Schleifringen des Erregerstromkreises und gegebenen falls die Bürsten am Kommutator der Erregerma schine, sofern diese mit eingebaut ist, notwendig.
Die Erfindung betrifft einen Synchrongenerator mit wasserumströmtem Gehäuse und Antrieb durch eine Rohrturbine. Erfindungsgemäss besitzt der Ge nerator eine bürstenlose Erregeranordnung.
Auf diese Weise wird eine der wesentlichen Ur sachen für eine laufende Wartung beseitigt. Es wird deshalb möglich, das Gehäuse in seiner Form hy- draulisch günstiger zu gestalten. Damit wird der Wirkungskreis der Anlage höher.
In der Zeichnung ist ein schematisches Ausfüh rungsbeispiel der Erfindung dargestellt. In einem bir nenartigen Gehäuse 1, das allseitig von Wasser um strömt ist, ist der Generator untergebracht, dessen Läufer 2 gegen die Unterwasserseite zu über ein Planetengetriebe 3 mit dem Turbinenlaufrad 4 ge kuppelt ist. Es bedeuten 5 den Leitapparat der Tur bine und 6 eine Stützkonstruktion, die die Turbine mit dem Wasserführungsrdhr 14 verbindet. Mit Hilfe des Stützfusses 7 ist das Gehäuse 1 seinerseits in der an dieser Stelle aus Beton bestehenden Wasser führung befestigt und nach der Oberwasserseite zu mit der abnehmbaren Haube 8 abgeschlossen.
Die Zeichnung stellt weiter die Anordnung einer Wechselstrom-Erregermaschine 9 dar, deren Läufer am oberwasserseitigen freien Wellenende des Gene- rators fliegend aufgesetzt ist, und die Anordnung eines mitumlaufenden Satzes von Trockengleich richtern 10.
Letzterer ist im Innern der hohlen Welle 15 oder eines hohlen Läufers des Generators so untergebracht, dass er durch das oberwasserseitige Wellenende ausgebaut werden 'kann. Kabel 11 ver binden die Läuferwicklung des Erregergenerators 9 über den Trockengleichrichtersatz 10 mit der Erre gerwicklung 12 des Polrades.
Da der Trockengleich richtersatz 10 einer starken Kühlwirkung ausgesetzt sein muss, veranschaulicht die Zeichnung die Anord nung eines Hochdrucklüfters 13 an einer geeigneten Stelle der oberwasserseitigen Generatorlagerung der art, dass die von ihm geförderte Kühlluft vor dem Eintritt in die hohle Welle 15 an der Innenwandung der vom Wasser umströmten oberwasserseitigen Haube 8 des Generators entlangströmt und dadurch entsprechend gekühlt wird.
Synchronous generator with a water-circulating housing and drive by a bulb turbine In hydropower plants with a small usable gradient, e.g. B. in river power plants, bulb turbines with an axis inclined in the direction of water flow have recently been used more and more frequently. They have hydraulic advantages and require less complex structures. Such a design offers the possibility of the water flow z. B. both in the inlet to the turbine and in the outlet, so in the turbine chamber and the suction pipe to make hydraulically more fluid.
Arrangements have become known in which the generators are housed in a pear-like housing around which water flows. This solution is opposed to the requirement to make the generator accessible for maintenance purposes. Attempts have been made to overcome this difficulty by arranging wide support blades that can be walked on or by arranging the generator in an upwardly open concrete shaft, but in both cases some of the advantages of the bulb turbine arrangement are lost.
The accessibility of the inside of the generator is primarily necessary for the operational maintenance of the wearing parts, in particular the brushes on the slip rings of the excitation circuit and, if necessary, the brushes on the commutator of the excitation machine, if this is also installed.
The invention relates to a synchronous generator with a housing around which water flows and a drive by a bulb turbine. According to the invention, the generator has a brushless exciter arrangement.
In this way, one of the main causes of ongoing maintenance is eliminated. It is therefore possible to make the housing hydraulically more favorable in shape. This increases the area of activity of the system.
In the drawing, a schematic Ausfüh approximately example of the invention is shown. In a bir nen-like housing 1, which is flowed by water on all sides, the generator is housed, the rotor 2 is coupled against the underwater side via a planetary gear 3 with the turbine wheel 4 ge. It denotes 5 the diffuser of the turbine and 6 a support structure that connects the turbine to the water guide pipe 14. With the help of the support leg 7, the housing 1 is in turn attached in the existing concrete water guide at this point and completed with the removable hood 8 after the upstream side.
The drawing also shows the arrangement of an alternating current exciter 9, the rotor of which is overhung on the free shaft end of the generator on the upstream side, and the arrangement of a circulating set of dry rectifiers 10.
The latter is housed inside the hollow shaft 15 or a hollow rotor of the generator in such a way that it can be expanded through the shaft end on the upstream side. Cable 11 ver tie the rotor winding of the exciter generator 9 via the dry rectifier set 10 with the exciter winding 12 of the pole wheel.
Since the dry rectifier set 10 must be exposed to a strong cooling effect, the drawing illustrates the arrangement of a high-pressure fan 13 at a suitable location on the generator mounting above the water side so that the cooling air it delivers before it enters the hollow shaft 15 on the inner wall of the Water flows around the upper water-side hood 8 of the generator and is cooled accordingly.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL38012A DE1170523B (en) | 1961-01-23 | 1961-01-23 | A brushlessly excited synchronous generator in a housing around which water flows through a rotating rectifier for the drive by a bulb turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
CH389769A true CH389769A (en) | 1965-03-31 |
Family
ID=7268137
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH40662A CH389769A (en) | 1961-01-23 | 1962-01-11 | Synchronous generator with housing surrounded by water and driven by a bulb turbine |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH389769A (en) |
DE (1) | DE1170523B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008017537A1 (en) | 2008-04-03 | 2009-10-08 | Voith Patent Gmbh | Tubular turbine generator unit |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE671908C (en) * | 1935-10-05 | 1939-02-16 | Fischer Arno | Water turbine aggregate for electrical underwater power plants, surrounded by headwater |
DE849727C (en) * | 1950-09-27 | 1952-09-18 | Siemens Ag | Dry rectifier arrangement for the excitation of an electrical generator |
FR1031368A (en) * | 1951-01-24 | 1953-06-23 | Safi | Alternator |
FR1043086A (en) * | 1951-06-09 | 1953-11-05 | Improvements to submerged hydro-electric units | |
CA587388A (en) * | 1957-03-12 | 1959-11-17 | Westinghouse Electric Corporation | Alternating current dynamoelectric machine |
-
1961
- 1961-01-23 DE DEL38012A patent/DE1170523B/en active Pending
-
1962
- 1962-01-11 CH CH40662A patent/CH389769A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008017537A1 (en) | 2008-04-03 | 2009-10-08 | Voith Patent Gmbh | Tubular turbine generator unit |
US8536719B2 (en) | 2008-04-03 | 2013-09-17 | Voith Patent Gmbh | Tubular turbine generator unit |
Also Published As
Publication number | Publication date |
---|---|
DE1170523B (en) | 1964-05-21 |
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