EP2808556A1 - Structure assembly for a turbo machine - Google Patents
Structure assembly for a turbo machine Download PDFInfo
- Publication number
- EP2808556A1 EP2808556A1 EP14170055.9A EP14170055A EP2808556A1 EP 2808556 A1 EP2808556 A1 EP 2808556A1 EP 14170055 A EP14170055 A EP 14170055A EP 2808556 A1 EP2808556 A1 EP 2808556A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flow path
- secondary flow
- flow channel
- main flow
- support member
- 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.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
- F04D29/526—Details of the casing section radially opposing blade tips
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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
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/145—Means for influencing boundary layers or secondary circulations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
- F04D29/685—Inducing localised fluid recirculation in the stator-rotor interface
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
- F04D27/0215—Arrangements therefor, e.g. bleed or by-pass valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
- F04D27/0238—Details or means for fluid reinjection
Definitions
- the invention relates to a structural assembly for a turbomachine according to the preamble of patent claim 1.
- turbomachines in particular of fluid flow machines such as fans, compressors, pumps and fans, is limited by the growth and separation of boundary layers in the rotor and stator tip areas near the housing or hub wall. In the case of blade rows with a running gap, this leads to high secondary losses and possibly to the occurrence of operational instabilities at higher loads.
- casing treatments As a countermeasure, it is known to use so-called casing treatments.
- the simplest form of casing treatments are circumferential grooves of rectangular or parallelogram cross-section, such as in EP 0 754 864 A1 revealed and in the Fig. 1a outlined as an example.
- Other solutions provide for rows of slots or openings in the housing, the individual slots / openings being oriented substantially in the flow direction and having a slender shape with a small extension viewed in the circumferential direction of the machine.
- Such solutions are for example in the DE 101 35 003 C1 revealed and in the Fig. 1b outlined as an example.
- a fluid flow machine which forms at least one secondary flow channel in the area of the blade leading edge in a main flow path boundary, which connects two openings arranged on the main flow path boundary.
- Each secondary flow channel in each case connects a removal opening with a supply opening provided further upstream.
- a spatially compact and robust structural design is to be provided.
- the structural assembly is formed by at least two interconnected components, namely at least one support member and at least one connecting member, wherein the support member at least partially forms the main flow path boundary, and wherein the connecting member forms or surrounds at least a portion of the secondary flow passage.
- the latter means that the connection component per se (ie not together with other components) forms or surrounds at least a portion of the secondary flow channel.
- the connection component completely surrounds at least one subsection of the secondary flow channel such that all wetted surfaces of the secondary flow channel in this subsection are undividedly associated with the connection component.
- the invention thus contemplates a portion of the main flowpath of a turbomachine, in the region of a free end and a nip row of blades, in which a series of circumferentially distributed secondary flow channels are provided.
- the course of the secondary flow channels can each be spatially complex.
- a structural assembly is provided for structurally implementing said secondary flow channels.
- each secondary flow channel is subdivided into three subsections within a meridian view: a rear section which opens into the main flow path with an opening, a front section which opens into the main flow path with an opening, and a central section, which connects the other two sections together. It can further be provided that the connection component is connected to the support component substantially on its side facing away from the main flow path.
- At least one of the openings of the secondary flow channel in the support member or an adapter connected to the support member is formed ,
- the secondary flow channel is realized in at least one subsection in the support component and in at least one subsection in the connection component.
- At least one of the openings of the secondary flow channel is formed in the connecting member. It can be provided that both openings of the secondary flow channel in Connection member are formed, so that the secondary flow channel is formed completely in the connecting member.
- the support member may be formed in embodiments of the invention as an annular housing of a turbomachine, as a half shell housing a turbomachine, an annular manner on the hub of a turbomachine, or semi-annular manner on the hub of a turbomachine.
- the secondary flow channel is designed as a single-path channel, with a first opening, through which fluid flows into the secondary flow channel, and with a second opening, through which the fluid leaves the secondary flow channel.
- At least one of the sections of the secondary flow channel opening into the main flow path is formed directly in the support component, for example, both sections of the secondary flow channel opening into the main flow path are provided directly in the support component. In the latter case, only a central portion of the secondary flow channel is formed in the connecting member.
- At least one of the sections of the secondary flow channel which opens into the main flow path is introduced directly into the support component by means of a cutting process, an electrochemical process or a laser process.
- a further variant of the invention provides that at least one of the sections of a secondary flow channel which opens into the main flow path is at least partially designed as a cylinder with an elliptical or circular cross section in the support component.
- At least one channel section of the secondary flow channel it may be provided to form at least one connecting piece and / or a web on the side of the support component facing away from the main flow path.
- at least one secondary flow channel section extends through a web or a socket of the support component, wherein it can further be provided that the at least one web or socket is formed on at least one separate adapter, wherein the Adapter is received by the support member, for example, is inserted into this.
- a further variant of the invention provides that the connecting component surrounds a section of the secondary flow channel and connects at least to a secondary flow channel section introduced directly into the support component.
- a connection of the connecting component to the support member for example, by a fit, a plug, a clamp, a screw, a weld or a soldering.
- the connecting member connects both to a first directly introduced into the support member portion and a second directly introduced into the support member portion, wherein the connecting member forms or encloses a third portion of the secondary flow channel and the connection between the first and second subsections forms.
- a further embodiment provides that the connecting component is inserted at least in the region of one end of a secondary flow channel in openings in the support member and in this way directly adjacent to the main flow path. It can be provided that all sections of the secondary flow channel are formed in the connecting member.
- the connecting component is designed as a ring sector and accommodates at least two secondary flow channels.
- this is the connecting component, for example, formed as a half ring or as a solid ring.
- a connection of the connecting member to the support member by a fit, a plug, a clamp, a screw, a weld or a soldering is realized.
- the connecting component is not executed in one piece, but consists of several sub-components, which together are connected. This can provide additional flexibility in the manufacture and assembly of the connection component.
- the present invention relates generally to structural assemblies for turbomachinery such as turbines, and more particularly to fluid flow machines such as fans, compressors, pumps and fans, in both axial, semi-axial and radial designs.
- the working medium or fluid may be gaseous or liquid.
- the turbomachine may include one or more stages each having a rotor and a stator. In some cases, the stage is formed only by a rotor.
- the rotor of a turbomachine in which a structural assembly according to the invention is used, consists of a number of blades, which are connected to the rotating shaft of the turbomachine and deliver energy to the working fluid in the case of the fluid flow machine.
- the rotor can be designed with or without shroud on the outer blade end.
- the stator of a turbomachine in which a structural assembly according to the invention is used, consists of a number of stationary blades, which can be designed on the hub side as the housing side with a fixed or free blade end.
- the rotor drum and the blading are usually surrounded by a housing. In other cases, z. As in propellers or propellers, no housing exists.
- a turbomachine in which a structural assembly according to the invention is used, can also have a stator in front of the first rotor, a so-called leading wheel. At least one stator or Vorleitrad - may be rotatably mounted - deviating from an immovable fixation - to change the angle of attack can. An adjustment is made for example by a spindle accessible from outside the annular channel.
- a turbomachine in which a structural assembly according to the invention is used, have at least one row of adjustable rotors.
- a turbomachine in which a structural assembly according to the invention is used, have two counterrotating shafts in multiple stages, so that the rotor blade rows change the direction of rotation from stage to stage. There are no stators between successive rotors.
- a turbomachine in which a structural assembly according to the invention is used have a bypass configuration such that a single-flow annular channel behind a certain row of blades divides into two concentric annular channels, which in turn accommodate at least one more row of blades.
- turbomachine in which a structural assembly according to the invention is used, it is, for example, a jet engine, in particular a turbofan engine.
- the structural assembly is formed, for example, in the region of a compressor of a jet engine or turbofan engine.
- the invention further relates to a fluid flow machine with a structural assembly according to the invention.
- the Fig. 2A shows an arrangement of a blade row 3 with free end and running gap 5 in the meridian plane formed by the axial direction x and the radial direction r.
- the nip 5 separates the blade tip from a component 2 belonging to the main flow path at the hub or housing of the fluid flow machine.
- the component 2 forms a main flow path boundary 4 toward the main flow path.
- the main flow direction in the main flow path is indicated by an arrow A. Upstream and / or downstream of the row of blades 3 with running gap, further rows of blades may be located.
- a number of secondary flow channels 1 distributed on the circumference are provided in the region of the running gap 5, each of which forms an opening at its ends (feed opening and removal opening).
- Fig. 2A shows the outline or the projection of a single secondary flow channel 1 in the meridian plane (xr).
- xr meridian plane
- each channel 1 has a three-dimensional spatially twisted course, which in the Fig. 2B is shown by way of example.
- cross-sectional shape of the secondary flow channels 1 in the Fig. 2B merely exemplified as rectangular.
- the cross section of the secondary flow channels 1 may be formed in other embodiments without corners, in particular circular or elliptical.
- FIG. 3A shows a structural assembly according to the invention in the region of a row of blades with running gap in the meridian view (xr).
- the main flow direction is indicated by an arrow A.
- the blade row is no longer shown in favor of a simpler representation.
- At least one secondary flow channel 1 is formed, which has two openings 111, 112 in the main flow path boundary and is connected via this to the main flow path.
- the secondary flow channel 1 is designed as a single-path path with an opening through which fluid flows from the main flow channel into the secondary flow channel and a second opening, through which the fluid leaves the secondary flow channel. Through which of the openings 111, 112 flows fluid and through which the openings 111, 112 fluid flows, depends on the exact positioning of the openings 111, 112 with respect to the blades of the blade row 3 (see. Fig. 2B ).
- At least one of the secondary flow channels is formed by an arrangement in which a single channel is divided along its course into at least two subchannels, thereby forming a kind of "trouser configuration".
- an inflow port and a plurality of outflow ports are included, which belong to the secondary flow passage.
- the support member is designed as a ring housing of a turbomachine or as a half shell housing a turbomachine. With a corresponding arrangement in the hub region, it is, for example, annularly formed on the hub of a turbomachine or semi-annular on the hub of a turbomachine.
- the support member 21 of FIG. 3A forms on the side facing away from the main flow path side a nozzle 211 and spaced therefrom in the flow direction of a web 212 in which respective portions 12, 13 of the secondary flow channel 1 are formed and adjacent to the main flow path in each case one of the openings 111, 112 of the secondary flow channel 1 form.
- the connecting component 22 connects the two areas 211, 212 of the support component, so that the secondary flow channel 1 in the illustrated embodiment comprises three sections, a rear section 13, which is formed in the web 212 of the support member 21, a central portion 11 formed in the connecting member 22 is and a front portion 12 which is formed in the neck 211 of the support member 21, wherein the rear and the front portion 13, 12 respectively open in an opening 112, 111 to the main flow path.
- the connecting member 22, which forms the central portion 11 of the secondary flow channel 1 is formed by a hose or by a pipe which is connected at their ends to a corresponding surface of the nozzle 212 and the web 211 of the support member, for example by means of a flange connection, not shown.
- the connection of the connection component 22 to the support component 21 is realized by a fit, a connection, a clamping, a screw connection, a weld or a soldering.
- FIG. 3A 1 shows an exemplary embodiment in which a structural assembly comprises a support component 21 and a connection component 22, wherein the openings of the secondary flow channel 1 are formed in the support component 11 and the connection component 22 forms a central subsection of the secondary flow channel 1 forms or surrounds.
- the connecting member 22 is arranged as a line freely in space.
- FIG. 3B shows an embodiment of a structural assembly in the region of a row of blades with running gap in the meridian view (xr), which is characterized by the embodiment of the FIG. 3A distinguishes that a connecting member 23 is not formed as a freely arranged in space line, but instead as a ring sector.
- the connection component 23 is designed, for example, as a half ring or as a complete solid ring.
- the connecting component 23 thus constitutes a type of housing shell in which one or more channels 11 are formed, each of which forms a central section of a secondary flow channel 1.
- the connecting component 23 is produced by means of a casting, sintering or print manufacturing process.
- FIG. 3C shows an embodiment of a structural assembly in the region of a row of blades with a running gap in the meridian view (xr), in which the secondary flow channel 1 is completely formed in the connecting member 24.
- the connecting member 24 thus includes portions 241, 242 which adjoin the main flow path and form a portion of the main flow path boundary. In each case one of the openings 111, 112 of the secondary flow channel 1 is formed in the sections 241, 242.
- the connecting member 22 is inserted into corresponding openings 213, 214 of the support member 21. Between the regions 241, 242 of the connection component 24, which form the respective openings 111, 112, a partial region 215 of the support component 21 runs in this case.
- the constructive solutions with regard to FIGS. 3A . 3B . 3C are described, combined with each other.
- the connecting component 24 of the FIG. 3C consists of three sub-areas, in other words, the connecting member 24 is formed by three connecting part components, wherein the middle sub-component according to the FIG. 3A for example, is designed as a flexible hose, while the other two sub-components which are mounted in the support member 21, can absorb structural forces.
- the invention is not limited in its embodiment to the embodiments shown above, which are to be understood only as examples.
- shape and configuration of the secondary flow channels and of the components that make them available can be realized in a different way than illustrated.
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- Engineering & Computer Science (AREA)
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Abstract
Die Erfindung betrifft eine Strukturbaugruppe für eine Strömungsmaschine, die aufweist: eine Hauptströmungspfadberandung (4), die einen Hauptströmungspfad einer Strömungsmaschine berandet, wobei in dem Hauptströmungspfad mindestens eine Reihe von Schaufeln (3) mit jeweils einem Schaufelende angeordnet ist, wobei ein Spalt (5) zwischen den Schaufelenden der mindestens einen Reihe von Schaufeln (3) und der Hauptströmungspfadberandung (4) besteht, und wobei die Schaufeln (3) einer Schaufelreihe und die Hauptströmungspfadberandung (4) eine rotierende Relativbewegung zueinander ausführen; und mindestens einen Sekundärströmungskanal (1), der an in Strömungsrichtung beabstandeten Enden jeweils eine Öffnung (111, 112) aufweist, die in der Hauptströmungspfadberandung (4) ausgebildet ist, so dass der Sekundärströmungskanal (1) mittels der beiden Öffnungen (111, 112) mit dem Hauptströmungspfad verbunden ist. Es ist vorgesehen, dass die Strukturbaugruppe mindestens zwei miteinander verbundene Bauteile aufweist, mindestens ein Stützbauteil (21) und mindestens ein Verbindungsbauteil (22, 23, 24), wobei das Stützbauteil (21) zumindest teilweise die Hauptströmungspfadberandung (4) bildet und wobei das Verbindungsbauteil (22, 23, 24) zumindest einen Teilabschnitt (11, 12, 13) des Sekundärströmungskanals (1) bildet oder umgibt.The invention relates to a structural assembly for a turbomachine, comprising: a main flow path boundary (4), which borders a main flow path of a turbomachine, wherein in the main flow path at least one row of blades (3) each having a blade end is arranged, wherein a gap (5) between the blade ends of the at least one row of blades (3) and the main flow path boundary (4), and wherein the blades (3) of a blade row and the Hauptströmungspfadberandung (4) perform a rotating relative movement to each other; and at least one secondary flow channel (1) each having an opening (111, 112) formed at the downstream ends formed in the main flow path boundary (4) so that the secondary flow channel (1) is opened by means of the two openings (111, 112). is connected to the main flow path. It is provided that the structural assembly comprises at least two interconnected components, at least one support member (21) and at least one connecting member (22, 23, 24), wherein the support member (21) at least partially the Hauptströmungspfadberandung (4) and wherein the connecting member (22, 23, 24) at least forms a portion (11, 12, 13) of the secondary flow channel (1) or surrounds.
Description
Die Erfindung betrifft eine Strukturbaugruppe für eine Strömungsmaschine gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a structural assembly for a turbomachine according to the preamble of
Die aerodynamische Belastbarkeit und die Effizienz von Strömungsmaschinen, im Besonderen von Strömungsarbeitsmaschinen wie Bläsern, Verdichtern, Pumpen und Ventilatoren, wird durch das Wachstum und die Ablösung von Grenzschichten im Rotor-und Statorspitzenbereich nahe der Gehäuse- beziehungsweise Nabenwand begrenzt. Dies führt bei Schaufelreihen mit Laufspalt bei höherer Belastung zu hohen Sekundärverlusten und ggf. zum Auftreten von Betriebsinstabilitäten.The aerodynamic load capacity and efficiency of turbomachines, in particular of fluid flow machines such as fans, compressors, pumps and fans, is limited by the growth and separation of boundary layers in the rotor and stator tip areas near the housing or hub wall. In the case of blade rows with a running gap, this leads to high secondary losses and possibly to the occurrence of operational instabilities at higher loads.
Als Gegenmaßnahme ist es bekannt, sogenannte Casing Treatments einzusetzen. Die einfachste Form von Casing Treatments sind Umfangsnuten mit rechteckigem oder parallelogrammförmigem Querschnitt, wie beispielsweise in
Weitere Casing Treatments sind als Ring am gesamten Umfang im Bereich eines Rotors im Gehäuse vorgesehen, wobei oftmals Leitschaufeln zur Reduzierung des Strömungsdralls innerhalb des Casing Treatments vorgesehen sind; so beispielsweise in den Druckschriften
Existierende Konzepte von Casing Treatments in Form von Schlitzen und/oder Kammern in der Ringkanalwand bieten eine Steigerung der Stabilität der Strömungsarbeitsmaschine. Die wird jedoch aufgrund der ungünstig gewählten Anordnung oder Formgebung nur bei Verlust an Wirkungsgrad erzielt. Bekannte Lösungen nehmen zudem einen großen Bauraum an der Peripherie des Ringkanals der Strömungsarbeitsmaschine ein, sie sind aufgrund ihrer Form (z. B. einfache parallelogrammförmige Umfangsgehäusenuten) nur bedingt wirksam und sie sind stets im Gehäuse im Bereich einer Rotorschaufelreihe vorgesehen. Casing Treatments nach dem Stand der Technik sind darauf ausgerichtet, dass sie mit Hilfe zumeist spanender Bearbeitung einfach von einer zugänglichen Seite in das Gehäuse eingebracht werden können.Existing concepts of casing treatments in the form of slots and / or chambers in the annular channel wall increase the stability of the fluid flow machine. However, this is achieved due to the unfavorably chosen arrangement or shaping only at loss of efficiency. Known solutions also take up a large space at the periphery of the annular channel of the fluid flow machine, they are due to their shape (eg simple parallelogram Umfangsgehäusenuten) only partially effective and they are always provided in the housing in the range of a rotor blade row. Casing treatments according to the prior art are designed so that they can be easily inserted from an accessible side into the housing with the aid of mostly machining.
Aus der
Ausgehend von der
Diese Aufgabe wird erfindungsgemäß durch eine Strukturbaugruppe mit den Merkmalen des Anspruchs 1 und eine Strömungsmaschine mit den Merkmalen des Anspruchs 15 gelöst. Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a structural assembly having the features of
Danach ist erfindungsgemäß vorgesehen, dass die Strukturbaugruppe durch mindestens zwei miteinander verbundene Bauteile gebildet ist, nämlich mindestens ein Stützbauteil und mindestens ein Verbindungsbauteil, wobei das Stützbauteil zumindest teilweise die Hauptströmungspfadberandung bildet und wobei das Verbindungsbauteil zumindest einen Teilabschnitt des Sekundärströmungskanals bildet oder umgibt. Letzeres bedeutet, dass das Verbindungsbauteil für sich genommen (d.h. nicht zusammen mit weiteren Bauteilen) zumindestens einen Teilabschnitt des Sekundärströmungskanals bildet oder umgibt. Mit anderen Worten umgibt das Verbindungsbauteil zumindest einen Teilabschnitt des Sekundärströmungskanals derart vollständig, dass alle benetzten Oberflächen des Sekundärströmungskanals in diesem Teilabschnitt ungeteilt dem Verbindungsbauteil zugehören.Thereafter, the invention provides that the structural assembly is formed by at least two interconnected components, namely at least one support member and at least one connecting member, wherein the support member at least partially forms the main flow path boundary, and wherein the connecting member forms or surrounds at least a portion of the secondary flow passage. The latter means that the connection component per se (ie not together with other components) forms or surrounds at least a portion of the secondary flow channel. In other words, the connection component completely surrounds at least one subsection of the secondary flow channel such that all wetted surfaces of the secondary flow channel in this subsection are undividedly associated with the connection component.
Die Erfindung betrachtet somit einen Abschnitt des Hauptströmungspfades einer Strömungsmaschine, im Bereich einer Schaufelreihe mit freiem Ende und Laufspalt, in dem eine Reihe von in Umfangsrichtung verteilten Sekundärströmungskanälen vorgesehen ist. Der Verlauf der Sekundärströmungskanäle kann jeweils räumlich komplex sein. Erfindungsgemäß wird eine Strukturbaugruppe zur konstruktiven Realisierung der genannten Sekundärströmungskanäle bereitgestellt.The invention thus contemplates a portion of the main flowpath of a turbomachine, in the region of a free end and a nip row of blades, in which a series of circumferentially distributed secondary flow channels are provided. The course of the secondary flow channels can each be spatially complex. According to the invention, a structural assembly is provided for structurally implementing said secondary flow channels.
Eine Ausgestaltung der Erfindung sieht vor, dass jeder Sekundärströmungskanal innerhalb einer Meridianansicht in drei Teilabschnitte unterteilt ist: einen hinteren Teilabschnitt, der mit einer Öffnung in den Hauptströmungspfad mündet, einen vorderen Teilabschnitt, der mit einer Öffnung in den Hauptströmungspfad mündet, und einen mittleren Teilabschnitt, der die beiden anderen Teilabschnitte miteinander verbindet. Weiter kann vorgesehen sein, dass das Verbindungsbauteil mit dem Stützbauteil im Wesentlichen auf dessen dem Hauptströmungspfad abgewandten Seite verbunden ist.An embodiment of the invention provides that each secondary flow channel is subdivided into three subsections within a meridian view: a rear section which opens into the main flow path with an opening, a front section which opens into the main flow path with an opening, and a central section, which connects the other two sections together. It can further be provided that the connection component is connected to the support component substantially on its side facing away from the main flow path.
Gemäß einer Ausgestaltung der Erfindung ist mindestens eine der Öffnungen des Sekundärströmungskanals im Stützbauteil oder einem mit dem Stützbauteil verbundenen Adapter (bei dem es sich beispielsweise um einen in das Stützbauteil eingesetzten Adapter handelt, der die Öffnung und einen sich daran anschließenden Abschnitt des Sekundärströmungskanals bildet) ausgebildet. Insbesondere kann vorgesehen sein, dass der Sekundärströmungskanal in mindestens einem Teilabschnitt im Stützbauteil und in mindestens einem Teilabschnitt im Verbindungsbauteil realisiert ist.According to one embodiment of the invention, at least one of the openings of the secondary flow channel in the support member or an adapter connected to the support member (which is, for example, an adapter inserted into the support member which forms the opening and an adjoining portion of the secondary flow channel) is formed , In particular, it can be provided that the secondary flow channel is realized in at least one subsection in the support component and in at least one subsection in the connection component.
Gemäß einer weiteren Ausgestaltung der Erfindung ist mindestens eine der Öffnungen des Sekundärströmungskanals im Verbindungsbauteil ausgebildet ist. Dabei kann vorgesehen sein, dass beide Öffnungen des Sekundärströmungskanals im Verbindungsbauteil ausgebildet sind, so dass der Sekundärströmungskanal vollständig im Verbindungsbauteil ausgebildet ist.According to a further embodiment of the invention, at least one of the openings of the secondary flow channel is formed in the connecting member. It can be provided that both openings of the secondary flow channel in Connection member are formed, so that the secondary flow channel is formed completely in the connecting member.
Das Stützbauteil kann in Ausführungsvarianten der Erfindung als Ringgehäuse einer Strömungsmaschine, als Halbschalengehäuse einer Strömungsmaschine, ringartig an der Nabe einer Strömungsmaschine, oder halbringartig an der Nabe einer Strömungsmaschine ausgebildet sein.The support member may be formed in embodiments of the invention as an annular housing of a turbomachine, as a half shell housing a turbomachine, an annular manner on the hub of a turbomachine, or semi-annular manner on the hub of a turbomachine.
Gemäß einer Ausgestaltung der Erfindung ist der Sekundärströmungskanal als einpfadiger Kanal ausgeführt, mit einer ersten Öffnung, durch die Fluid in den Sekundärströmungskanal einströmt, und mit einer zweiten Öffnung, durch die Fluid den Sekundärströmungskanal verlässt.According to one embodiment of the invention, the secondary flow channel is designed as a single-path channel, with a first opening, through which fluid flows into the secondary flow channel, and with a second opening, through which the fluid leaves the secondary flow channel.
In einer weiteren Ausgestaltung ist vorgesehen, dass wenigstens einer der in den Hauptströmungspfad mündenden Teilabschnitte des Sekundärströmungskanals direkt im Stützbauteil ausgebildet ist, beispielsweise beide in den Hauptströmungspfad mündenden Teilabschnitte des Sekundärströmungskanals direkt im Stützbauteil vorgesehen sind. In letzterem Fall ist nur ein mittlerer Abschnitt des Sekundärströmungskanals im Verbindungsbauteil ausgebildet.In a further embodiment, it is provided that at least one of the sections of the secondary flow channel opening into the main flow path is formed directly in the support component, for example, both sections of the secondary flow channel opening into the main flow path are provided directly in the support component. In the latter case, only a central portion of the secondary flow channel is formed in the connecting member.
Es kann vorgesehen sein, dass wenigstens einer der in den Hauptströmungspfad mündenden Teilabschnitte des Sekundärströmungskanals mit Hilfe eines spanenden Verfahrens, eines elektro-chemischen Verfahrens oder eines Laserverfahrens direkt in das Stützbauteil eingebracht ist.It may be provided that at least one of the sections of the secondary flow channel which opens into the main flow path is introduced directly into the support component by means of a cutting process, an electrochemical process or a laser process.
Eine weitere Erfindungsvariante sieht vor, dass wenigstens einer der in den Hauptströmungspfad mündenden Teilabschnitte eines Sekundärströmungskanals wenigstens teilweise als Zylinder mit elliptischem oder kreisrundem Querschnitt im Stützbauteil ausgeführt ist.A further variant of the invention provides that at least one of the sections of a secondary flow channel which opens into the main flow path is at least partially designed as a cylinder with an elliptical or circular cross section in the support component.
Zur Ausbildung wenigstens eines Kanalteilabschnitts des Sekundärströmungskanals kann vorgesehen sein, an der dem Hauptströmungspfad abgewandten Seite des Stützbauteils wenigstens einen Stutzen und/oder einen Steg auszubilden. Dabei kann beispielsweise vorgesehen sein, dass wenigstens ein Sekundärströmungskanalteilabschnitt durch einen Steg oder einen Stutzen des Stützbauteils verläuft, wobei weiter vorgesehen sein kann, dass der wenigstens eine Steg oder Stutzen an mindestens einem separaten Adapter ausgebildet ist, wobei der Adapter vom Stützbauteil aufgenommen ist, beispielsweise in dieses eingesetzt ist. Diese Ausführungsvariante ist mit dem Vorteil verbunden, dass ggf. komplexe Strukturen zur Realisierung eines Sekundärströmungskanalteilabschnitts nicht im Stützbauteil selbst ausgebildet werden müssen, sondern in einem oder mehreren entsprechenden Adaptern, die in das Stützbauteil eingesetzt werden, ausgebildet werden können.In order to form at least one channel section of the secondary flow channel, it may be provided to form at least one connecting piece and / or a web on the side of the support component facing away from the main flow path. In this case, it can be provided, for example, that at least one secondary flow channel section extends through a web or a socket of the support component, wherein it can further be provided that the at least one web or socket is formed on at least one separate adapter, wherein the Adapter is received by the support member, for example, is inserted into this. This embodiment is associated with the advantage that possibly complex structures for the realization of a Sekundärströmungskanalteilabschnitts not in the support member itself must be formed, but in one or more corresponding adapters, which are used in the support member can be formed.
Eine weitere Erfindungsvariante sieht vor, dass das Verbindungsbauteil einen Teilabschnitt des Sekundärströmungskanals umgibt und wenigstens an einen direkt in das Stützbauteil eingebrachten Sekundärströmungskanalteilabschnitt anschließt. Ein Anschluss des Verbindungsbauteils an das Stützbauteil erfolgt beispielsweise durch eine Passung, eine Steckung, eine Klemmung, eine Verschraubung, eine Schweißung oder eine Lötung.A further variant of the invention provides that the connecting component surrounds a section of the secondary flow channel and connects at least to a secondary flow channel section introduced directly into the support component. A connection of the connecting component to the support member, for example, by a fit, a plug, a clamp, a screw, a weld or a soldering.
Gemäß einer Ausgestaltung der Erfindung schließt sich das Verbindungsbauteil sowohl an einen ersten direkt in das Stützbauteil eingebrachten Teilabschnitt als auch an einen zweiten direkt in das Stützbauteil eingebrachten Teilabschnitt an, wobei das Verbindungsbauteil einen dritten Teilabschnitt des Sekundärströmungskanals bildet oder umschließt und die Verbindung zwischen den ersten und zweiten Teilabschnitten bildet.According to one embodiment of the invention, the connecting member connects both to a first directly introduced into the support member portion and a second directly introduced into the support member portion, wherein the connecting member forms or encloses a third portion of the secondary flow channel and the connection between the first and second subsections forms.
Eine weitere Ausgestaltung sieht vor, dass das Verbindungsbauteil wenigstens im Bereich eines Endes eines Sekundärströmungskanals in Öffnungen im Stützbauteil eingesetzt ist und auf diese Weise direkt an den Hauptströmungspfad grenzt. Dabei kann vorgesehen sein, dass sämtliche Abschnitte des Sekundärströmungskanals im Verbindungsbauteil ausgebildet sind.A further embodiment provides that the connecting component is inserted at least in the region of one end of a secondary flow channel in openings in the support member and in this way directly adjacent to the main flow path. It can be provided that all sections of the secondary flow channel are formed in the connecting member.
Es kann vorgesehen sein, dass das Verbindungsbauteil als Ringsektor ausgebildet ist und mindestens zwei Sekundärströmungskanäle beherbergt. Dabei ist das das Verbindungsbauteil beispielsweise als Halbring oder als Vollring ausgebildet.It can be provided that the connecting component is designed as a ring sector and accommodates at least two secondary flow channels. In this case, this is the connecting component, for example, formed as a half ring or as a solid ring.
Gemäß eines weiteren Ausgestaltung ist ein Anschluss des Verbindungsbauteils an das Stützbauteil durch eine Passung, eine Steckung, eine Klemmung, eine Verschraubung, eine Schweißung oder eine Lötung realisiert.According to a further embodiment, a connection of the connecting member to the support member by a fit, a plug, a clamp, a screw, a weld or a soldering is realized.
Gemäß einer weiteren Ausgestaltung der Erfindung ist das Verbindungsbauteil nicht einteilig ausgeführt, sondern besteht es aus mehreren Teilbauteilen, die miteinander verbunden sind. Hierdurch kann eine zusätzliche Flexibilität bei der Herstellung und Montage des Verbindungsbauteils bereitgestellt werden.According to a further embodiment of the invention, the connecting component is not executed in one piece, but consists of several sub-components, which together are connected. This can provide additional flexibility in the manufacture and assembly of the connection component.
Die vorliegende Erfindung bezieht sich allgemein auf Strukturbaugruppen für Strömungsmaschinen wie Turbinen, und im besonderen Strömungsarbeitsmaschinen wie Bläser, Verdichter, Pumpen und Ventilatoren, sowohl in axialer, halbaxialer als auch in radialer Bauart. Das Arbeitsmedium oder Fluid kann gasförmig oder flüssig sein. Die Strömungsmaschine kann eine oder mehrere Stufen mit jeweils einem Rotor und einem Stator umfassen. In Einzelfällen wird die Stufe lediglich durch einen Rotor gebildet.The present invention relates generally to structural assemblies for turbomachinery such as turbines, and more particularly to fluid flow machines such as fans, compressors, pumps and fans, in both axial, semi-axial and radial designs. The working medium or fluid may be gaseous or liquid. The turbomachine may include one or more stages each having a rotor and a stator. In some cases, the stage is formed only by a rotor.
Der Rotor einer Strömungsmaschine, in der eine erfindungsgemäße Strukturbaugruppe eingesetzt wird, besteht aus einer Anzahl von Schaufeln, die mit der rotierenden Welle der Strömungsmaschine verbunden sind und im Fall der Strömungsarbeitsmaschine Energie an das Arbeitsmedium abgeben. Der Rotor kann mit oder ohne Deckband am äußeren Schaufelende ausgeführt sein.The rotor of a turbomachine, in which a structural assembly according to the invention is used, consists of a number of blades, which are connected to the rotating shaft of the turbomachine and deliver energy to the working fluid in the case of the fluid flow machine. The rotor can be designed with or without shroud on the outer blade end.
Der Stator einer Strömungsmaschine, in der eine erfindungsgemäße Strukturbaugruppe eingesetzt wird, besteht aus einer Anzahl feststehender Schaufeln, die nabenseitig wie gehäuseseitig mit festem oder freiem Schaufelende ausgeführt sein können.The stator of a turbomachine, in which a structural assembly according to the invention is used, consists of a number of stationary blades, which can be designed on the hub side as the housing side with a fixed or free blade end.
Die Rotortrommel und die Beschaufelung sind üblicherweise von einem Gehäuse umgeben. In anderen Fällen, z. B. bei Propellern oder Schiffsschrauben, existiert kein Gehäuse.The rotor drum and the blading are usually surrounded by a housing. In other cases, z. As in propellers or propellers, no housing exists.
Eine Strömungsmaschine, in der eine erfindungsgemäße Strukturbaugruppe eingesetzt wird, kann auch einen Stator vor dem ersten Rotor, ein sogenanntes Vorleitrad, aufweisen. Mindestens ein Stator oder Vorleitrad kann - abweichend von einer unbeweglichen Fixierung - drehbar gelagert sein, um den Anstellwinkel verändern zu können. Eine Verstellung erfolgt beispielsweise durch eine von außerhalb des Ringkanals zugängliche Spindel.A turbomachine, in which a structural assembly according to the invention is used, can also have a stator in front of the first rotor, a so-called leading wheel. At least one stator or Vorleitrad - may be rotatably mounted - deviating from an immovable fixation - to change the angle of attack can. An adjustment is made for example by a spindle accessible from outside the annular channel.
In einer Ausgestaltung kann eine Strömungsmaschine, in der eine erfindungsgemäße Strukturbaugruppe eingesetzt wird, mindestens eine Reihe verstellbarer Rotoren aufweisen.In one embodiment, a turbomachine, in which a structural assembly according to the invention is used, have at least one row of adjustable rotors.
In einer Ausgestaltung kann eine Strömungsmaschine, in der eine erfindungsgemäße Strukturbaugruppe eingesetzt wird, bei Mehrstufigkeit zwei gegenläufige Wellen besitzen, so daß die Rotorschaufelreihen von Stufe zu Stufe die Drehrichtung wechseln. Hierbei existieren keine Statoren zwischen aufeinander folgenden Rotoren.In one embodiment, a turbomachine, in which a structural assembly according to the invention is used, have two counterrotating shafts in multiple stages, so that the rotor blade rows change the direction of rotation from stage to stage. There are no stators between successive rotors.
In einer Ausgestaltung kann eine Strömungsmaschine, in der eine erfindungsgemäße Strukturbaugruppe eingesetzt wird, eine Nebenstromkonfiguration derart aufweisen, daß sich ein einstromiger Ringkanal hinter einer bestimmten Schaufelreihe in zwei konzentrische Ringkanäle aufteilt, die ihrerseits mindestens jeweils eine weitere Schaufelreihe beherbergen.In one embodiment, a turbomachine in which a structural assembly according to the invention is used, have a bypass configuration such that a single-flow annular channel behind a certain row of blades divides into two concentric annular channels, which in turn accommodate at least one more row of blades.
Bei der Strömungsmaschine, in der eine erfindungsgemäße Strukturbaugruppe eingesetzt wird, handelt es sich beispielsweise um ein Strahltriebwerk, insbesondere ein Turbofan-Triebwerk. Die Strukturbaugruppe ist beispielsweise im Bereich eines Verdichters eines Strahltriebwerks bzw. Turbofan-Triebwerk ausgebildet.In the turbomachine in which a structural assembly according to the invention is used, it is, for example, a jet engine, in particular a turbofan engine. The structural assembly is formed, for example, in the region of a compressor of a jet engine or turbofan engine.
Die Erfindung betrifft des Weiteren eine Strömungsarbeitsmaschine mit einer erfindungsgemäßen Strukturbaugruppe.The invention further relates to a fluid flow machine with a structural assembly according to the invention.
Die Erfindung wird nachfolgend unter Bezugnahme auf die Figuren der Zeichnung anhand mehrerer Ausführungsbeispiele näher erläutert. Es zeigen:
- Fig. 1A
- ein Casing Treatment eines Rotorgehäuses in Form von Ringnuten gemäß dem Stand der Technik in zwei Ansichten;
- Fig. 1B
- ein Casing Treatment eines Rotorgehäuses in Form von Schlitzen gemäß dem Stand der Technik in zwei Ansichten;
- Fig. 2A
- ein Ausführungsbeispiel eines Rotorgehäuses einer Strömungsmaschine mit einem Sekundärströmungskanal in einem Meridianschnitt;
- Fig. 2B
- ein Ausführungsbeispiel eines Rotorgehäuses einer Strömungsmaschine mit einem Sekundärströmungskanal in räumlicher Ansicht;
- Fig. 3A
- ein erstes Ausführungsbeispiel einer Strukturbaugruppe für eine Strömungsmaschine, die einen Sekundärströmungskanal ausbildet;
- Fig. 3B
- ein zweites Ausführungsbeispiel einer Strukturbaugruppe für eine Strömungsmaschine, die einen Sekundärströmungskanal ausbildet; und
- Fig. 3C
- ein drittes Ausführungsbeispiel einer Strukturbaugruppe für eine Strömungsmaschine, die einen Sekundärströmungskanal ausbildet.
- Fig. 1A
- a casing treatment of a rotor housing in the form of annular grooves according to the prior art in two views;
- Fig. 1B
- a casing treatment of a rotor housing in the form of slots according to the prior art in two views;
- Fig. 2A
- an embodiment of a rotor housing of a turbomachine with a secondary flow channel in a meridian section;
- Fig. 2B
- an embodiment of a rotor housing of a turbomachine with a secondary flow channel in a three-dimensional view;
- Fig. 3A
- a first embodiment of a structural assembly for a turbomachine, which forms a secondary flow channel;
- Fig. 3B
- a second embodiment of a structural assembly for a turbomachine, which forms a secondary flow channel; and
- Fig. 3C
- A third embodiment of a structural assembly for a turbomachine, which forms a secondary flow channel.
Verschiedene Casing Treatments eines Rotorgehäuses gemäß dem Stand der Technik waren eingangs anhand der
Die
Zwischen der Schaufelspitze und dem zum Hauptströmungspfad gehörenden Bauteil 2 liegt eine rotierende Relativbewegung vor. Die Darstellung gilt somit gleichermaßen für folgende Anordnungen: 1.) rotierende Schaufel an stehendem Gehäuse; 2.) ruhende Schaufel an rotierender Nabe; 3.) ruhende Schaufel an rotierendem Gehäuse; und 4.) rotierende Schaufel an stehender Nabe.There is a rotating relative movement between the blade tip and the
Die Hauptströmungsrichtung im Hauptströmungspfad ist mit einem Pfeil A gekennzeichnet. Stromauf und/oder stromab der Schaufelreihe 3 mit Laufspalt können sich weitere Schaufelreihen befinden. Innerhalb des zum Hauptströmungspfad gehörenden Bauteils 2 ist im Bereich des Laufspaltes 5 eine Reihe von am Umfang verteilten Sekundärströmungskanälen 1 vorgesehen, die an ihren Enden jeweils eine Öffnung ausbilden (Zuführöffnung und Entnahmeöffnung).The main flow direction in the main flow path is indicated by an arrow A. Upstream and / or downstream of the row of
Die Öffnungen der Sekundärströmungskanäle befinden sich an der Hauptströmungspfadberandung 4. Die
Es wird darauf hingewiesen, dass die Querschnittsform der Sekundärströmungskanäle 1 in der
Die
In der Strukturbaugruppe ist mindestens ein Sekundärströmungskanal 1 ausgebildet, der zwei Öffnungen 111, 112 in der Hauptströmungspfadberandung aufweist und über diese mit dem Hauptströmungspfad verbunden ist. Dabei wird darauf hingewiesen, dass in dem Ausführungsbeispiel der
In alternativen Ausgestaltungen kann vorgesehen sein, dass mindestens einer der Sekundärströmungskanäle durch eine Anordnung gebildet ist, bei der sich ein Einzelkanal entlang seines Verlaufes in wenigstens zwei Teilkanäle aufteilt und dadurch eine Art "Hosenkonfiguration" bildet. Für diesen Fall sind eine Einströmöffnung und mehrere Ausströmöffnungen vorgesehen, die zu dem Sekundärströmungskanal gehören. Gemäß einer weiteren alternativen Ausgestaltung kann vorgesehen sein, dass mindestens einer der Sekundärströmungskanäle durch eine Anordnung gebildet ist, bei der wenigstens zwei Kanäle zu einem Kanal zusammengeführt werden, wobei dann mehrere Einströmöffnungen und eine Ausströmöffnung zu dem Sekundärströmungskanal gehören.In alternative embodiments, it can be provided that at least one of the secondary flow channels is formed by an arrangement in which a single channel is divided along its course into at least two subchannels, thereby forming a kind of "trouser configuration". In this case, an inflow port and a plurality of outflow ports are included, which belong to the secondary flow passage. According to a further alternative embodiment, provision can be made for at least one of the secondary flow channels to be formed by an arrangement in which at least two channels are combined to form a channel, in which case several inlet openings and one outlet opening belong to the secondary flow channel.
Gemäß der
- Bestandteil eines ein- oder mehrschaligen Gehäuses von Schaufelreihen oder Stufen mit fester Schaufelgeometrie;
- Bestandteil eines ein- oder mehrschaligen Gehäuses von Schaufelreihen oder Stufen mit verstellbarer Schaufelgeometrie;
- Bestandteil von Rotortrommeln, Rotorscheiben oder Blisk-Modulen;
- Bestandteil von Innendeckbandbaugruppen im Nabenbereich von Leitradschaufeln.
- Component of a single or multi-shell housing of blade rows or steps with fixed blade geometry;
- Component of a single or multi-shell housing of blade rows or stages with adjustable blade geometry;
- Component of rotor drums, rotor disks or blisk modules;
- Component of inner shroud assemblies in the hub area of stator vanes.
Im Ausführungsbeispiel der
Das Stützbauteil 21 der
Das Verbindungsbauteil 22 verbindet die beiden Bereiche 211, 212 des Stützbauteils, so dass der Sekundärströmungskanal 1 im dargestellten Ausführungsbeispiel drei Teilabschnitte umfasst, einen hinteren Teilabschnitt 13, der im Steg 212 des Stützbauteils 21 ausgebildet ist, einen mittleren Teilabschnitt 11, der im Verbindungsbauteil 22 ausgebildet ist und einen vorderen Teilabschnitt 12, der im Stutzen 211 des Stützbauteils 21 ausgebildet ist, wobei der hintere und der vordere Teilabschnitt 13, 12 jeweils in einer Öffnung 112, 111 zum Hauptströmungspfad münden.The connecting
Dabei ist vorgesehen, dass das Verbindungsbauteil 22, das den mittleren Teilabschnitt 11 des Sekundärströmungskanals 1 bildet, durch einen Schlauch oder durch eine Rohrleitung gebildet ist, die an ihren Enden an einer entsprechenden Fläche des Stutzens 212 bzw. des Stegs 211 des Stützbauteils verbunden ist, beispielsweise mittels einer nicht dargestellten Flanschverbindung. Allgemein kann vorgesehen sein, dass der Anschluss des Verbindungsbauteils 22 an das Stützbauteil 21 durch eine Passung, eine Steckung, eine Klemmung, eine Verschraubung, eine Schweißung oder eine Lötung realisiert wird.It is provided that the connecting
Die
Die
Dabei kann vorgesehen sein, dass aufgrund der möglichen Komplexität der Sekundärströmungskanäle 1 das Verbindungsbauteil 23 mit Hilfe eines Gieß-, Sinter- oder Print-Fertigungsverfahrens hergestellt ist.It can be provided that due to the possible complexity of the
Die
Das Verbindungsbauteil 22 ist in entsprechende Öffnungen 213, 214 des Stützbauteils 21 eingesetzt. Zwischen den Bereichen 241, 242 des Verbindungsbauteils 24, die die jeweiligen Öffnungen 111, 112 ausbilden, verläuft dabei ein Teilbereich 215 des Stützbauteils 21.The connecting
In weiteren Ausgestaltungen der Erfindung können die konstruktiven Lösungen, die im Hinblick auf die
Die Erfindung beschränkt sich in ihrer Ausgestaltung nicht auf die vorstehend dargestellten Ausführungsbeispiele, die lediglich beispielhaft zu verstehen sind. Beispielsweise können Form und Ausgestaltung der Sekundärströmungskanäle sowie der diese bereitstellenden Bauteile (Stützbauteil und Verbindungsbauteil) in anderer Weise als dargestellt realisiert sein.The invention is not limited in its embodiment to the embodiments shown above, which are to be understood only as examples. For example, the shape and configuration of the secondary flow channels and of the components that make them available (support component and connection component) can be realized in a different way than illustrated.
Claims (15)
dass die Strukturbaugruppe mindestens zwei miteinander verbundene Bauteile aufweist, mindestens ein Stützbauteil (21) und mindestens ein Verbindungsbauteil (22, 23, 24), wobei das Stützbauteil (21) zumindest teilweise die Hauptströmungspfadberandung (4) bildet und wobei das Verbindungsbauteil (22, 23, 24) zumindest einen Teilabschnitt (11, 12, 13) des Sekundärströmungskanals (1) bildet oder umgibt.Structural assembly for a turbomachine, comprising:
in that the structural assembly has at least two interconnected components, at least one support component (21) and at least one connection component (22, 23, 24), wherein the support component (21) at least partially forms the main flow path boundary (4) and wherein the connection component (22, 23 , 24) forms or surrounds at least a partial section (11, 12, 13) of the secondary flow channel (1).
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DE102013210167.8A DE102013210167A1 (en) | 2013-05-31 | 2013-05-31 | Structural assembly for a turbomachine |
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---|---|---|---|---|
EP3177811B1 (en) * | 2014-08-08 | 2021-07-21 | Siemens Energy Global GmbH & Co. KG | Gas turbine engine compressor |
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US11920617B2 (en) | 2019-07-23 | 2024-03-05 | Coflow Jet, LLC | Fluid systems and methods that address flow separation |
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Also Published As
Publication number | Publication date |
---|---|
US20140356143A1 (en) | 2014-12-04 |
US9822792B2 (en) | 2017-11-21 |
DE102013210167A1 (en) | 2014-12-04 |
EP2808556B1 (en) | 2018-11-14 |
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