WO2012110198A1 - Hydraulic turbomachine - Google Patents
Hydraulic turbomachine Download PDFInfo
- Publication number
- WO2012110198A1 WO2012110198A1 PCT/EP2012/000406 EP2012000406W WO2012110198A1 WO 2012110198 A1 WO2012110198 A1 WO 2012110198A1 EP 2012000406 W EP2012000406 W EP 2012000406W WO 2012110198 A1 WO2012110198 A1 WO 2012110198A1
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- WIPO (PCT)
- Prior art keywords
- traverse
- ring
- groove
- impeller
- decks
- Prior art date
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- Ceased
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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
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
- F03B13/1845—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/10—Purpose of the control system
- F05B2270/109—Purpose of the control system to prolong engine life
- F05B2270/1095—Purpose of the control system to prolong engine life by limiting mechanical stresses
-
- 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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Definitions
- the invention relates to a hydraulic turbomachine, in particular a water turbine, pump turbine or pump, according to the preamble of claim 1.
- a hydraulic turbomachine in particular a water turbine, pump turbine or pump, according to the preamble of claim 1.
- These may be machines of the Francis type or the Kaplan type or other machines. It is essential that it is about machines with a spiral housing.
- US-A-4 496 282 or to DE 199 50 228 AI As an example reference is made to US-A-4 496 282 or to DE 199 50 228 AI.
- volute of such a turbomachine encloses the impeller. It lies in a plane perpendicular to the axis of rotation of the impeller. Because the
- Impeller axis is generally vertical, it is a horizontal plane.
- the spiral housing is open on its inside against the impeller. It thus has an annular gap which runs around the inner circumference of the spiral housing, so that working medium from the volute can flow through the annular gap on the entire inner circumference to the impeller.
- the annular gap is thus defined by two circumferential edges.
- a truss ring At the said annular gap is followed, seen in the flow direction, a truss ring.
- This comprises two Traversenringdecks, which are arranged concentrically to the axis of rotation of the impeller and have a mutual distance in the axial direction.
- the traverse ring decks are connected by tie rods, so-called traverses.
- each of the said peripheral edges of the spiral housing with one of the two Traversenringdecks is firmly connected.
- the truss ring serves to prevent expansion of the volute casing under the high internal pressure.
- the invention is based on the object, a hydraulic flow machine of the type mentioned, comprising a spiral housing and a
- Truss ring which avoids the disadvantages of the prior art.
- a hydraulic turbomachine according to the invention with an impeller which rotates about an axis of rotation and has a multiplicity of moving blades comprises a volute which surrounds the impeller and is open towards it by a slot formed by two peripheral edges.
- the hydraulic fluid machine further comprises a truss ring comprising two
- Trussing ring decks which are interconnected by trusses on.
- the spiral housing is in the area of the peripheral edges of the
- hydraulic turbomachine is arranged.
- the term "dead water area” refers to the area or space through which the main flow of the working medium does not flow.
- Such areas in known hydraulic turbomachines are, for example
- FIG. 2 shows a detailed view of the cross-member ring shown in FIG.
- the Francis turbine shown in Figure 1 has an impeller 1. This includes a plurality of blades 1.1.
- the impeller 1 revolves around a rotation axis 2.
- the impeller 1 is enclosed by a spiral housing 3.
- the spiral casing 3 is, for example, of circular cross section. It has a circumferential annular gap which is open towards the impeller 1. The annular gap is limited by
- Traverse ring decks 4.1 and 4.2 To support the Traversenringdecks 4.1 and 4.2 at least one traverse 4.3 is provided.
- the areas of the peripheral edges 3.1, 3.2 are welded to the traverse ring decks 4.1, 4.2.
- a nozzle 5 is provided with vane 5.1.
- suction pipe is connected in the flow direction.
- the main flow direction of the working medium, here water, is indicated by arrows in FIG.
- FIG. 2 shows an enlarged detail view of a cross-member ring 4 from FIG. Essentially, there are the same elements with them
- Traverse ring 4 is introduced with respect to the axis of rotation 2 shown in Figure 1.
- the groove 6 is close to the transition from the traverse to 4.3
- the truss ring 4 encloses in the area of
- Turbine cover 7 and cross-ring 4.1 and 4.2 are thus opposite and limit together with the groove 6 an auxiliary space of the hydraulic fluid machine.
- the side room is outside the direction indicated by the arrows main flow direction of the
- the groove 6 does not affect the main flow. Through the groove 6 in addition a better stress distribution, which can reduce the Traversendicke achieved. As a result, the use of materials can be significantly reduced while avoiding premature material fatigue.
- the groove 6 can be designed as a single continuous circumferential groove or a plurality of circumferentially distributed individual non-contiguous grooves and be prepared by urformenden or cutting process. It may differ from the illustrated U-shaped cross-section and be introduced alternatively or additionally on the outer circumference of the truss ring in Traversenringdeck. In this case, the groove may be shielded by appropriate means from the main flow of the working medium in order to avoid influencing it.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Turbines (AREA)
Abstract
Description
Hydraulische Strömungsmaschine Hydraulic turbomachine
Die Erfindung betrifft eine hydraulische Strömungsmaschine, insbesondere eine Wasserturbine, Pumpturbine oder Pumpe, gemäß dem Oberbegriff von Anspruch 1. Dabei kann es sich um Maschinen der Francis-Bauart oder der Kaplan-Bauart oder um sonstige Maschinen handeln. Wesentlich ist, dass es um Maschinen mit einem Spiralgehäuse geht. Als Beispiel wird auf US-A-4 496 282 oder auf DE 199 50 228 AI verwiesen. The invention relates to a hydraulic turbomachine, in particular a water turbine, pump turbine or pump, according to the preamble of claim 1. These may be machines of the Francis type or the Kaplan type or other machines. It is essential that it is about machines with a spiral housing. As an example reference is made to US-A-4 496 282 or to DE 199 50 228 AI.
Das Spiralgehäuse einer solchen Strömungsmaschine umschließt das Laufrad. Es liegt in einer zur Drehachse des Laufrades senkrechten Ebene. Da die The volute of such a turbomachine encloses the impeller. It lies in a plane perpendicular to the axis of rotation of the impeller. Because the
Laufradachse im allgemeinen vertikal verläuft, handelt es sich dabei um eine horizontale Ebene. Impeller axis is generally vertical, it is a horizontal plane.
Das Spiralgehäuse ist auf seiner Innenseite gegen das Laufrad hin offen. Es weist somit einen Ringspalt auf, der um den inneren Umfang des Spiralgehäuses herumläuft, so dass Arbeitsmedium aus dem Spiralgehäuse durch den Ringspalt auf dem gesamten inneren Umfang zum Laufrad strömen kann. Der Ringspalt ist somit durch zwei umlaufende Kanten definiert. The spiral housing is open on its inside against the impeller. It thus has an annular gap which runs around the inner circumference of the spiral housing, so that working medium from the volute can flow through the annular gap on the entire inner circumference to the impeller. The annular gap is thus defined by two circumferential edges.
An den genannten Ringspalt schließt sich in Strömungsrichtung gesehen ein Traversenring an. Dieser umfasst zwei Traversenringdecks, die zur Drehachse des Laufrades konzentrisch angeordnet sind und einen gegenseitigen Abstand in axialer Richtung haben. Die Traversenringdecks sind durch Zuganker miteinander verbunden, sogenannte Traversen. Außerdem ist jede der genannten umlaufenden Kanten des Spiralgehäuses mit einem der beiden Traversenringdecks fest verbunden. Der Traversenring dient dazu, ein Aufweiten des Spiralgehäuses unter dem hohen Innendruck zu verhindern. Es wirken somit Kräfte auf die genannten Traversen ein, insbesondere auf die Verbindungsstelle zwischen der betreffenden Traverse und dem entsprechenden Traversenringdeck. An dieser Verbindungsstelle findet ein Übergang der im Querschnitt gesehen relativ schmalen Traverse zum relativ breiten Querschnitt des Traversenringdecks statt. Infolge dieses Übergangs ergibt sich dort aufgrund des relativ großen Steifigkeitsunterschiedes eine erhöhte Belastung im Betrieb der hydraulischen Strömungsmaschine, welche zu einer Materialermüdung führen kann. At the said annular gap is followed, seen in the flow direction, a truss ring. This comprises two Traversenringdecks, which are arranged concentrically to the axis of rotation of the impeller and have a mutual distance in the axial direction. The traverse ring decks are connected by tie rods, so-called traverses. In addition, each of the said peripheral edges of the spiral housing with one of the two Traversenringdecks is firmly connected. The truss ring serves to prevent expansion of the volute casing under the high internal pressure. Thus, forces act on the said trusses, in particular on the connection point between the respective cross member and the corresponding truss ring deck. At this juncture, there is a transition from the relatively narrow traverse seen in cross-section to the relatively wide cross-section of the traverse ring deck. As a result of this transition arises there due to the relatively large difference in stiffness increased load during operation of the hydraulic fluid machine, which can lead to material fatigue.
Um derartig hohe Belastungen in dieser Verbindungsstelle zu vermeiden, ist es bekannt, entsprechend große Übergangsradien zwischen der Traverse und dem Traversenringdeck vorzusehen. Derartige Übergangsradien bedingen jedoch, dass der Querschnitt der Traverse und somit der von Arbeitsmedium umströmte Bereich der Traverse vergrößert wird, was sich nachteilig auf den Wirkungsgrad einer solchen hydraulischen Strömungsmaschine auswirkt. Auch weitere bekannte Maßnahmen zur Reduktion derartiger Belastungen im besagten Übergangsbereich konnten bisher nicht vollstens befriedigen, obwohl erhebliche Anstrengungen unternommen wurden, diese bei geringstmöglichem Materialeinsatz dauerhaft und zuverlässig zu gestalten. In order to avoid such high loads in this connection point, it is known to provide correspondingly large transition radii between the traverse and the traverse ring deck. However, such transition radii require that the cross section of the traverse and thus the flow around the working medium of the cross member is increased, which adversely affects the efficiency of such a hydraulic fluid machine. Other known measures for reducing such loads in said transition region have not been completely satisfactory, although considerable efforts have been made to make them durable and reliable with the least possible use of materials.
Der Erfindung liegt die Aufgabe zugrunde, eine hydraulische Strömungsmaschine der eingangs genannten Art, umfassend ein Spiralgehäuse und einen The invention is based on the object, a hydraulic flow machine of the type mentioned, comprising a spiral housing and a
Traversen ring, anzugeben, welche die Nachteile des Standes der Technik vermeidet. Truss ring, which avoids the disadvantages of the prior art.
Diese Aufgabe wird durch die Merkmale des unabhängigen Anspruchs gelöst. Die abhängigen Ansprüche geben besonders zweckmäßige und vorteilhafte This object is solved by the features of the independent claim. The dependent claims give particularly expedient and advantageous
Ausführungsformen der Erfindung an. Eine erfindungsgemäße hydraulische Strömungsmaschine mit einem Laufrad, das um eine Drehachse umläuft und eine Vielzahl von Laufschaufeln aufweist, umfasst ein Spiralgehäuse, dass das Laufrad umschließt und gegen dieses hin durch einen aus zwei umlaufenden Kanten gebildeten Schlitz offen ist. Die hydraulische Strömungsmaschine weist weiterhin einen Traversenring, umfassend zwei Embodiments of the invention. A hydraulic turbomachine according to the invention with an impeller which rotates about an axis of rotation and has a multiplicity of moving blades, comprises a volute which surrounds the impeller and is open towards it by a slot formed by two peripheral edges. The hydraulic fluid machine further comprises a truss ring comprising two
Traversen ringdecks, die durch Traversen miteinander verbunden sind, auf. Dabei ist das Spiralgehäuse im Bereich der umlaufenden Kanten an die Trussing ring decks, which are interconnected by trusses on. The spiral housing is in the area of the peripheral edges of the
Traversenringdecks angeschlossen. Erfindungsgemäß ist in Bezug auf die Drehachse in die radial innere Stirnseite des Traversenrings im Bereich des Übergangs von der Traverse zum Traverse ring decks connected. According to the invention in relation to the axis of rotation in the radially inner end face of the crossbar in the region of the transition from the traverse to
Traversenringdeck eine Nut eingebracht, die im Totwasserbereich der Traversenringdeck a groove introduced in the dead water of the
hydraulischen Strömungsmaschine angeordnet ist. Als Totwasserbereich im Sinne der vorliegenden Erfindung ist jener Bereich oder Raum gemeint, welcher nicht von der Hauptströmung des Arbeitsmediums durchströmt wird. Derartige Bereiche in bekannten hydraulischen Strömungsmaschinen sind beispielsweise hydraulic turbomachine is arranged. In the sense of the present invention, the term "dead water area" refers to the area or space through which the main flow of the working medium does not flow. Such areas in known hydraulic turbomachines are, for example
Labyrinthdichtungen oder sonstige auch Arbeitsmedium aufweisende Labyrinth seals or other also working medium having
Nebenräume. Der Erfinder hat einen neuen Weg beschritten: Anstelle der bisher üblichenOutbuildings. The inventor has taken a new path: instead of the usual
Anpassung der Verbindung zwischen Traverse und Traversenring zur Reduzierung der dort auftretenden Belastungen hat er Maßnahmen angegeben, die sich nicht auf den Wirkungsgrad der hydraulischen Strömungsmaschine auswirken. Durch diese relativ einfache wie äußerst wirkungsvolle Maßnahme des Einbringens der Nut in den Tragringdeck wird über der gesamten axialen Länge der Traverse eine optimale Spannungsverteilung erzielt. Die Traverse kann aufgrund geringerer Beanspruchung nun mit weniger Materialeinsatz oder unter Verwendung eines kostengünstigeren Werkstoffs geringerer Festigkeit gefertigt werden, wodurch sich ein verbessertes Anströmverhalten und damit ein besserer Wirkungsgrad der hydraulischen Strömungsmaschine ergibt. Da die Nut im Totwasserbereich liegt, kann diese die Strömung nicht beeinflussen und in diesem Bereich wirksam und dauerhaft gegen Korrosion geschützt werden. Adjusting the connection between traverse and truss ring to reduce the loads occurring there, he has specified measures that do not affect the efficiency of the hydraulic fluid machine. Through this relatively simple as extremely effective measure of introducing the groove in the support ring deck an optimal stress distribution is achieved over the entire axial length of the traverse. The Traverse can now be made due to lower stress with less material or using a less expensive material lower strength, resulting in an improved flow behavior and thus a better efficiency of the hydraulic fluid machine results. Since the groove lies in the dead water area, This can not affect the flow and be protected in this area effectively and permanently against corrosion.
Die Erfindung soll nun anhand der Figuren erläutert werden. The invention will now be explained with reference to the figures.
Es zeigen: Show it:
Figur 1 einen Querschnitt durch die Drehachse einer als Francis-Turbine 1 shows a cross section through the axis of rotation of a Francis turbine
ausgeführten hydraulischen Strömungsmaschine; executed hydraulic fluid machine;
Figur 2 eine Detailansicht des in Figur 1 gezeigten Traversenrings in einem FIG. 2 shows a detailed view of the cross-member ring shown in FIG
Axialschnitt durch die Drehachse der Leitschaufel. Axial section through the axis of rotation of the vane.
Die in Figur 1 dargestellte Francis-Turbine weist ein Laufrad 1 auf. Dieses umfasst eine Vielzahl von Laufschaufeln 1.1. Das Laufrad 1 läuft um eine Drehachse 2 um. The Francis turbine shown in Figure 1 has an impeller 1. This includes a plurality of blades 1.1. The impeller 1 revolves around a rotation axis 2.
Das Laufrad 1 ist von einem Spiralgehäuse 3 umschlossen. Das Spiralgehäuse 3 ist zum Beispiel von kreisförmigem Querschnitt. Es hat einen umlaufenden Ringspalt, der gegen das Laufrad 1 hin offen ist. Der Ringspalt ist begrenzt durch The impeller 1 is enclosed by a spiral housing 3. The spiral casing 3 is, for example, of circular cross section. It has a circumferential annular gap which is open towards the impeller 1. The annular gap is limited by
umlaufende Kanten 3.1, 3.2. circumferential edges 3.1, 3.2.
An den Ringspalt schließt sich ein Traversenring 4 an. Dieser weist zwei At the annular gap is followed by a truss ring 4. This one has two
Traversenringdecks 4.1 und 4.2 auf. Zur AbStützung der Traversenringdecks 4.1 und 4.2 ist wenigstens eine Traverse 4.3 vorgesehen. Traverse ring decks 4.1 and 4.2. To support the Traversenringdecks 4.1 and 4.2 at least one traverse 4.3 is provided.
Die Bereiche der umlaufenden Kanten 3.1, 3.2 sind mit den Traversenringdecks 4.1, 4.2 verschweißt. The areas of the peripheral edges 3.1, 3.2 are welded to the traverse ring decks 4.1, 4.2.
Zwischen Traversenring 4 und Laufrad 1 ist ein Leitapparat 5 mit Leitschaufel 5.1 vorgesehen. An das Laufrad 1 ist in Strömungsrichtung gesehen ein nicht gezeigtes Saugrohr angeschlossen. Die Hauptströmungsrichtung des Arbeitsmediums, hier Wasser, ist mittels Pfeilen in Figur 1 angedeutet. Between truss ring 4 and impeller 1, a nozzle 5 is provided with vane 5.1. To the impeller 1, not shown suction pipe is connected in the flow direction. The main flow direction of the working medium, here water, is indicated by arrows in FIG.
In der Figur 2 ist eine vergrößerte Detailansicht eines Traversenrings 4 aus dargestellt. Im Wesentlichen sind dort dieselben Elemente mit denselben FIG. 2 shows an enlarged detail view of a cross-member ring 4 from FIG. Essentially, there are the same elements with them
Bezugszeichen versehen. Provided with reference numerals.
Aus der Figur 2 erkennt man, dass vorliegend im Traversenringdeck 4.1 eine Nut 6 eingebracht ist. Diese ist vorliegend in die radial innere Stirnseite des From FIG. 2, it can be seen that in the present case a groove 6 has been introduced in the cross-member deck 4.1. This is present in the radially inner end of the
Traversenrings 4 in Bezug auf die in Figur 1 dargestellte Drehachse 2 eingebracht. Die Nut 6 ist dabei nahe des Übergangs von der Traverse 4.3 zum Traverse ring 4 is introduced with respect to the axis of rotation 2 shown in Figure 1. The groove 6 is close to the transition from the traverse to 4.3
Traversenringdeck 4.1 beziehungsweise 4.2 im Traversenringdeck eingebracht. Traverse ring deck 4.1 or 4.2 introduced in Traversenringdeck.
Im vorliegenden Falle umschließt der Traversenring 4 im Bereich der In the present case, the truss ring 4 encloses in the area of
Traversenringdecks 4.1 und 4.2 einen Teil des Turbinendeckels 7 in Traverse ring decks 4.1 and 4.2 a part of the turbine cover 7 in
Umfangsrichtung. Turbinendeckel 7 und Traversenring 4.1 beziehungsweise 4.2 stehen sich somit gegenüber und begrenzen zusammen mit der Nut 6 einen Nebenraum der hydraulischen Strömungsmaschine. Der Nebenraum ist dabei außerhalb der durch die Pfeile angedeuteten Hauptströmungsrichtung des Circumferential direction. Turbine cover 7 and cross-ring 4.1 and 4.2 are thus opposite and limit together with the groove 6 an auxiliary space of the hydraulic fluid machine. The side room is outside the direction indicated by the arrows main flow direction of the
Arbeitsmediums angeordnet, sodass in den Raum vergleichsweise wenig Working medium arranged so that in the room comparatively little
Arbeitsmedium der Hauptströmung eintritt. Hierdurch kann ein verbesserterWorking medium of the main flow occurs. This can be an improved
Korrosionsschutz auf die Außenflächen der Nut 6 aufgebracht werden. Dadurch, dass die Nut 6 nicht von der Hauptströmung umspült wird, ist der Corrosion protection on the outer surfaces of the groove 6 are applied. The fact that the groove 6 is not washed by the main flow is the
Korrosionsschutz vor Abrasion von im Wasser mitgeführten Teilchen effektiv geschützt. Weiterhin beeinflusst die Nut 6 die Hauptströmung nicht. Durch die Nut 6 wird zusätzlich eine bessere Spannungsverteilung, wodurch sich die Traversendicke reduzieren lässt, erreicht. Hierdurch kann der Materialeinsatz deutlich verringert werden bei gleichzeitiger Vermeidung einer vorzeitigen Materialermüdung. Corrosion protection against abrasion of water entrained particles effectively protected. Furthermore, the groove 6 does not affect the main flow. Through the groove 6 in addition a better stress distribution, which can reduce the Traversendicke achieved. As a result, the use of materials can be significantly reduced while avoiding premature material fatigue.
Die Nut 6 kann dabei als eine einzige zusammenhängende Umfangsnut oder eine Mehrzahl von auf dem Umfang verteilter einzelner nicht zusammenhängender Nuten ausgeführt sein und mittels urformenden oder spanenden Verfahren hergestellt sein. Sie kann von dem dargestellten U-förmigen Querschnitt abweichen und alternativ oder zusätzlich am Außenumfang des Traversenrings im Traversenringdeck eingebracht sein. In diesem Fall kann die Nut durch entsprechende Mittel von der Hauptströmung des Arbeitsmediums abgeschirmt sein, um eine Beeinflussung dieser zu vermeiden. The groove 6 can be designed as a single continuous circumferential groove or a plurality of circumferentially distributed individual non-contiguous grooves and be prepared by urformenden or cutting process. It may differ from the illustrated U-shaped cross-section and be introduced alternatively or additionally on the outer circumference of the truss ring in Traversenringdeck. In this case, the groove may be shielded by appropriate means from the main flow of the working medium in order to avoid influencing it.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
Laufrad Wheel
Schaufel shovel
Drehachse axis of rotation
Spiralgehäuse volute
umlaufende Kante circumferential edge
Traversenring Travers ring
Traversenringdeck Travers ring cover
Traverse traverse
Leitapparat diffuser
Leitschaufel vane
Nut groove
Turbinendeckel turbine cover
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011011466A DE102011011466A1 (en) | 2011-02-16 | 2011-02-16 | Hydraulic turbomachine |
| DE102011011466.1 | 2011-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012110198A1 true WO2012110198A1 (en) | 2012-08-23 |
Family
ID=45562953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2012/000406 Ceased WO2012110198A1 (en) | 2011-02-16 | 2012-01-31 | Hydraulic turbomachine |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102011011466A1 (en) |
| WO (1) | WO2012110198A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104318713B (en) * | 2013-06-08 | 2016-12-07 | 深圳亿维锐创科技股份有限公司 | Fatigue of automobile driver state anticipation system |
| CN104276085B (en) * | 2013-06-08 | 2015-09-23 | 江阴众和电力仪表有限公司 | Fatigue of automobile driver state anticipation system |
| CN110033204B (en) * | 2019-04-23 | 2021-03-02 | 上海电力学院 | Combined scheduling method for power generation maintenance considering fatigue distribution uniformity of offshore wind farms |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB254464A (en) * | 1925-05-13 | 1926-07-08 | English Electric Co Ltd | An improved construction of casing for hydraulic turbines and for other purposes |
| US1723254A (en) * | 1926-12-06 | 1929-08-06 | Morgan Smith S Co | Hydraulic turbine |
| US1860618A (en) * | 1930-08-08 | 1932-05-31 | Allis Chalmers Mfg Co | Hydraulic turbine |
| DE1703041B1 (en) * | 1968-03-25 | 1971-12-23 | Voith Gmbh J M | SPIRAL HOUSING FOR FLOW MACHINES |
| US4780051A (en) * | 1985-05-23 | 1988-10-25 | Voith Hydro, Inc. | Hydraulic turbine aeration apparatus |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE132525C (en) * | ||||
| US1823702A (en) * | 1928-05-24 | 1931-09-15 | Allis Chalmers Mfg Co | Hydraulic machine |
| US3210045A (en) * | 1963-05-09 | 1965-10-05 | Nydqvist & Holm Ab | Device for wicket guide stems for water turbines, pump turbines or pumps |
| US3186685A (en) * | 1963-09-18 | 1965-06-01 | Dominion Eng Works Ltd | Method for construction of hydraulic turbine spiral cases |
| US4496282A (en) | 1982-05-06 | 1985-01-29 | Allis-Chalmers Corporation | Reversible two-stage hydraulic machine |
| DE19950228A1 (en) | 1999-10-19 | 2000-11-16 | Voith Hydro Gmbh & Co Kg | Hydraulic flow machine has output edge of each control blade for linear edge shape, or of line joining output edge ends for curved edge shape, inclined wrt. control blade rotation axis |
| FR2932854B1 (en) * | 2008-06-23 | 2014-04-18 | Alstom Hydro France | HYDRAULIC MACHINE WITH VERTICAL AXIS. |
-
2011
- 2011-02-16 DE DE102011011466A patent/DE102011011466A1/en not_active Withdrawn
-
2012
- 2012-01-31 WO PCT/EP2012/000406 patent/WO2012110198A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB254464A (en) * | 1925-05-13 | 1926-07-08 | English Electric Co Ltd | An improved construction of casing for hydraulic turbines and for other purposes |
| US1723254A (en) * | 1926-12-06 | 1929-08-06 | Morgan Smith S Co | Hydraulic turbine |
| US1860618A (en) * | 1930-08-08 | 1932-05-31 | Allis Chalmers Mfg Co | Hydraulic turbine |
| DE1703041B1 (en) * | 1968-03-25 | 1971-12-23 | Voith Gmbh J M | SPIRAL HOUSING FOR FLOW MACHINES |
| US4780051A (en) * | 1985-05-23 | 1988-10-25 | Voith Hydro, Inc. | Hydraulic turbine aeration apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011011466A1 (en) | 2012-08-16 |
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