EP3658781B1 - Dispositif pouvant être traversé - Google Patents

Dispositif pouvant être traversé Download PDF

Info

Publication number
EP3658781B1
EP3658781B1 EP18759898.2A EP18759898A EP3658781B1 EP 3658781 B1 EP3658781 B1 EP 3658781B1 EP 18759898 A EP18759898 A EP 18759898A EP 3658781 B1 EP3658781 B1 EP 3658781B1
Authority
EP
European Patent Office
Prior art keywords
diffuser
impeller
angle
arrangement
arg
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18759898.2A
Other languages
German (de)
English (en)
Other versions
EP3658781A1 (fr
Inventor
Uwe Martens
Nico Petry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Energy Global GmbH and Co KG
Original Assignee
Siemens Energy Global GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Energy Global GmbH and Co KG filed Critical Siemens Energy Global GmbH and Co KG
Publication of EP3658781A1 publication Critical patent/EP3658781A1/fr
Application granted granted Critical
Publication of EP3658781B1 publication Critical patent/EP3658781B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—Bladed diffusers

Definitions

  • the invention relates to an arrangement through which a process fluid can flow along a main flow direction, comprising an impeller which can be rotated about an axis in a direction of rotation and a stationary diffuser which is located downstream of the impeller and is bladed with guide vanes, the impeller having an inlet for a substantially axial inflow and has an outlet for a substantially radial outflow, wherein radially and axially extending rotor blades are arranged between a wheel disk and a cover disk of the impeller, the impeller channels delimiting one another in a circumferential direction, the diffuser extending essentially radially along a main flow direction, wherein the diffuser has an axial cover disk side and an axial wheel disk side, which delimit an axial channel width of the diffuser between them, the diffuser having a diffuser inlet for a substantially radial inflow and a Has diffuser outlet, wherein along a vane height direction axially and along a flow direction radially extending guide vanes are arranged between
  • the document U.S. 2,372,880 A shows a diffuser equipped with baffles that have a twist along the sheet metal blade height, the profile curvature is constant along the blade height in this design.
  • the EP 0 648 939 A2 shows a turbomachine with a closed impeller.
  • the EP 2 650 546 A1 Figure 12 shows a vane design with a curved profile centroid line along the blade height downstream of a closed impeller.
  • the invention proposes an arrangement of the type defined above, which is further developed by means of the characterizing part of the main claim.
  • the individual guide vanes can be defined as a stack of vane profiles along a vane height.
  • the blade profiles are two-dimensional geometries that define the blade outer contour in a specific blade height position.
  • the invention understands a profile chord of a blade profile to mean an (“imaginary”) straight connecting line between the profile front edge (profile nose) and a profile rear edge.
  • the angle of attack of a blade profile corresponds to the angle between the tangent to the profile chord and the tangent to the circular motion of the rotor. Accordingly, the angle of attack is constant along the extent of the blade perpendicular to the blade height, that is to say essentially parallel to the main flow direction, and can vary along the blade height.
  • a mean line describes a profile section or profile of a blade at a certain height position in that the mean line (line of curvature) is a line defined by the centers of circles inscribed or tangent to the suction side and pressure side of the profile.
  • a process fluid can be any gaseous, liquid or mixed-phase fluid.
  • the process fluid moves along a main flow direction through the arrangement, which is usually part of a turbomachine.
  • the direction of outflow is understood to be the average direction of movement of the process fluid in the area that is defined in the respective context by physical boundary walls.
  • the process fluid moves through individual flow channels, which are limited axially and circumferentially by guide vanes, from an area of the leading edges of the guide vanes radially outward into an area of trailing edges of the guide vanes. Since the guide vanes each have a curvature of the profile, one can only speak of an essentially radial main flow direction. In any case, the term "main flow direction" does not take into account local vortices and turbulence.
  • the impeller of the arrangement usually has a wheel disk and a cover disk.
  • the wheel disc delimits the flow channels of the impeller on the one hand radially (mainly in the inflow area) on the inside and on the other hand on the axial side (increasingly closer to the impeller outlet hin) which is axially opposite to the inflow side and through which a process fluid does not flow into the impeller.
  • the cover disk represents the delimitation of flow channels of the impeller opposite the wheel disk.
  • On the axial cover disk side opposite the wheel disk side the process fluid flows axially into the impeller and is deflected radially outwards for the flow channels of the impeller.
  • the cover disk side could therefore also be called the inflow side.
  • Flow channels of the impeller are delimited from one another in the circumferential direction by means of moving blades, the moving blades connecting the wheel disk and the cover disk to one another.
  • the wheel disc and the cover disc each also define the wheel disc side and the cover disc side, to which reference is also made in the description of the diffuser.
  • the inflow of the diffuser in the arrangement according to the invention always takes place radially from the inside to the outside.
  • the diffuser is preferably also provided with an outflow directed essentially radially outwards in the form of a diffuser outlet.
  • the diffuser is also curved and optionally flows radially-axially, axially or radially-inward.
  • a section of the diffuser always extends essentially radially. This section can be located in front of a deflection of the flow in an axial flow direction or in a flow direction directed radially inwards.
  • a leading edge angle for each axial blade height is defined as the angle between a leading edge tangent to a skeleton line on a leading edge of the respective vane and a circumferential tangent through the leading edge, with the leading edge angle being smaller on the cover disk side than on the wheel disk side.
  • a circumferential tangent that runs through the leading edge means that this circumferential tangent runs perpendicular to a radial ray through the leading edge point of the respective profile section of the vane.
  • the leading edge angle here is the mathematically positively swept angle starting from the circumferential tangent to the leading edge tangent on the skeleton line.
  • An advantageous further development of the invention provides that the difference between the leading edge angle on the cover disk side and the wheel disk side is at least 5°.
  • An embodiment of the invention according to the invention of this magnitude leads to a significant improvement in the aerodynamic properties of the arrangement.
  • Another advantageous development of the invention provides that the angle of attack of the guide vanes is smaller on the cover disk side than on the wheel disk side. This configuration also takes into account the difference in the flow pattern after exiting the impeller between the cover disk side and the wheel disk side, so that the aerodynamics are further improved.
  • Another development of the invention provides that the flow after exiting the impeller before entering the diffuser is prepared particularly expediently if the quotient of the axial channel width of the bladed diffuser to the maximum impeller outlet diameter is greater than 0.04.
  • Another advantageous development of the invention provides that the quotient of the axial channel width of the bladed diffuser to the axial channel width of the impeller at the maximum impeller outlet diameter is less than 0.95. In this way, the flow is accelerated as it enters the diffuser, so that the formation of vortices behind the impeller is reduced.
  • the guide vanes are designed such that an angle between a tangent on the mean line in the leading edge area and a tangent on the mean line in the trailing edge area is smaller on the cover disk side than on the wheel disk side.
  • this feature can be characterized in that a deflection function predetermined by the respective profile is less strong on the cover disk side than on the wheel disk side.
  • This configuration also advantageously relates to the special flow situation of the process fluid after it has exited the impeller and before it has entered the diffuser.
  • Another advantageous development of the arrangement according to the invention has a similar effect, in which the guide vanes are designed in such a way that an angle between a tangent on the mean line in the leading edge area to the profile chord is smaller on the cover disk side than on the wheel disk side.
  • the angle between a tangent to the mean line in the leading edge region and the chord line is defined as the mathematically positive angle from the tangent to the mean line in the leading edge region to the chord line.
  • the guide vanes have an inclination such that the leading edge on the cover disk side is offset from the leading edge on the wheel disk side in the direction of rotation of the impeller by at least 10% of the axial channel width of the diffuser.
  • this configuration also takes into account the differences between the cover disk side and the wheel disk side in the flow pattern after exiting the impeller.
  • the trailing edge can also be inclined in the circumferential direction, whereby it is particularly expedient according to an advantageous development of the arrangement if the guide vanes are designed in such a way that an offset against the direction of rotation of the impeller at the trailing edge of the Cover disc side is less than the wheel disc side at the leading edge.
  • Harmonic, low-pressure-loss flow guidance is achieved in particular when the axial course (course in the vertical direction) of the guide vanes of the diffuser is designed to be continuously curved from the cover disk side to the wheel disk side.
  • FIGS. 1 and 2 show a schematic representation of longitudinal sections through an inventive arrangement ARG, wherein figure 2 a detail marked II figure 1 reproduces.
  • a process fluid PFF flows through an arrangement ARG according to the invention along a main flow direction MFD from an inlet INL to an outlet EXT.
  • the arrangement ARG includes an impeller IMP that can be rotated about an axis X in the direction of rotation RTD.
  • a vertical diffuser DFF bladed with guide vanes VNE is located downstream of the impeller IMP.
  • the impeller IMP has an inlet INI for an essentially axial inflow and an outlet EXI for an essentially radial outflow.
  • the suitability for the essentially axial inflow or the essentially radial outflow of the impeller is characterized by the course of the flow channel or the impeller channels ICH extending through the impeller IMP.
  • Radially and axially extending moving blades BLD are located between a wheel disk HWI and a cover disk SWI of the impeller IMP.
  • the rotor blade channels ICH are delimited from one another by these rotor blades BLD in a circumferential direction CDR, as is the case Figures 3 and 4 is removable.
  • the diffuser DFF extends with diffuser flow channels along the main flow direction MFD, which runs essentially radially.
  • the diffuser DFF has an axial cover disk side SWS and an axial wheel disk side HWS.
  • the diffuser DFF has a diffuser inlet IND for a substantially radial inflow and a diffuser outlet EXD.
  • the diffuser is divided into three sections extending along the main flow direction MFD, into a first diffuser third TS1, a second diffuser third TS2 and a third diffuser third TS3.
  • Guide vanes VNE extend axially along a blade height direction and radially along a flow direction between the wheel disk side HWS and the cover disk side SWS.
  • the guide vanes VNE delimit individual guide vane channels HCN from one another in a circumferential direction CDR.
  • FIG. 3 , 4 and 5 a cross section of the arrangement ARG according to the invention or a section thereof is shown in each case, so that it can also be seen to what extent the guide vane channels HCN are delimited from one another in a circumferential direction CDR by means of the guide vanes VNE. Since the guide vanes VNE naturally do not have a completely straight profile along the main flow direction MFD, such a delimitation should also be understood accordingly.
  • the individual guide vanes VNE can be described as a stack of vane profiles PRL (e.g. vane profile PRL, as in figure 5 shown) along the blade height. The blade height runs, as in the Figures 1, 2 reproduced parallel to the axis X, i.e. axial.
  • the blade profiles PRL themselves are two-dimensional geometries that define the blade outer contour in a specific blade height position.
  • the actual three-dimensional outer contour of the blade on the respective suction side SCS and pressure side PRS results from a surface interpolation between the linear boundary contours of the blade profiles PRL, which each specify a linear specification in the respective blade height position (also axial position here).
  • figure 3 shows in cross section, schematically and in part, the arrangement ARG according to the invention with an impeller IMP and a downstream diffuser DFF, which is designed as a stator STA.
  • the impeller IMP is shown rotating in a circumferential direction CDR.
  • the individual vanes VNE of the diffuser DFF are only shown as schematic skeleton lines BWL.
  • a skeleton line BWL describes a profile section or a profile of a blade in a specific height position in that the skeleton line BWL, also sometimes called the line of curvature, is a line defined by the center points or circles tangent to the suction side and the pressure side of the profile.
  • the figure 5 using two circles CLC as an example of how the pressure side PRF and suction side SCS of a vane VNE define the skeleton line BWL using the inscribed circles CLC.
  • the figure 4 shows similar relationships in combination with the impeller IMP.
  • the impeller IMP is divided into three consecutive third sections along the main flow direction MFD, starting approximately from a moving blade leading edge ILE to a moving blade trailing edge ITE.
  • the moving blade leading edge ILE and the moving blade trailing edge ITE are not necessarily identical to the inlet INI of the impeller or the outlet XEI of the impeller.
  • the main flow direction MFD also runs axially in the impeller IMP - i.e. in figure 4 also in the drawing plane.
  • the information about the axial extension is in the axial projection of the rotor blades BLD figure 4 naturally lost.
  • the impeller has a first impeller section IS1, a second impeller section IS2 and a third impeller section IS3.
  • FIG. 4 shows the cover disk side SWS and the wheel disk side HWS both for a moving blade BLD and for a guide blade VNE, each in a dashed representation.
  • a leading edge angle LEA for each axial blade is defined as Angle between a leading edge tangent TLV of the respective vane VNE and a circumferential tangent CTG through the leading edge DLE.
  • the leading edge angle LEA is mathematically positive here, measured starting from the circumferential tangent CTG to the leading edge tangent TLV.
  • the circumferential tangent CTG is a tangent to the circumferential direction in the given position, here at the position of the leading edge DLE.
  • This circumferential tangent CTG can also be defined as being perpendicular to a radial ray RAD and the reference point, here including the leading edge DLE.
  • the profile chord VCH of the profile of the guide vane VNE is also drawn into the respective section, which extends from a leading edge DLE to a trailing edge DTE as a straight line.
  • the angle of attack AOA is also defined as a mathematically positive measured angle starting from the circumferential tangent CTG onto the chord VCH.
  • the figure 4 shows these relationships for the cover disc side SWS and the wheel disc side HWS of the diffuser DFF.
  • the ARG arrangement provides that the leading edge angle LEA is smaller on the cover disc side than on the wheel disc side in the diffuser DFF.
  • the difference between the leading edge angle LEA on the cover disk side and the leading edge angle on the wheel disk side is preferably at least 5 degrees.
  • the quotient of the axial channel width SAC of the bladed diffuser DFF to the maximum impeller outlet diameter is more than 0.04. Also the figure 2 it can be seen that the quotient of an axial channel width SAC of the bladed diffuser DFF to the axial channel width IAC of the impeller IMP at the maximum impeller outlet diameter DIE is less than 0.95.
  • the vane VNE is designed in such a way that an angle, referred to here as the profile curvature angle VBA, between a tangent TLV on the skeleton line BWL in the leading edge area to a tangent TTV on the skeleton line BWL in the trailing edge area TEA is smaller on the cover disc side than on the wheel disc side.
  • the profile curvature angle VBA is again measured mathematically as positive, starting from the tangent TLV on the skeleton line BWL in the leading edge area.
  • an advantageous embodiment of the invention is shown such that an angle between the tangent TLV on the skeleton line BWL in the leading edge area to the chord VCH is smaller on the cover disk side than on the wheel disk side, the angle being referred to here as the entry angle of attack VTC.
  • the conditions on the wheel disk side HWS or cover disk side SWS are basically shown schematically and accordingly represent both sides.
  • a leading edge DLE of the guide vanes VNE can be advantageous, as in figure 4 shown, be offset radially a bit downstream of the diffuser inlet DFF, with in figure 4 this radial offset is identified as CBS.
  • the guide vanes VNE have an inclination such that the leading edge DLE on the cover disk side is offset by at least 10% of the axial channel width SAC of the diffuser DFF in the direction of rotation RTD of the impeller IMP compared to the leading edge DLE on the wheel disk side.
  • the vanes VNE are designed such that an offset against the direction of rotation RTD of the impeller IMP at the trailing edge DTE from the cover disk side SWS relative to the wheel disk side HWS is less than at the leading edge DLE.
  • the axial course of the vanes of the diffuser DFF from the cover disc side SWS to the wheel disc side HWS is continuously curved.
  • figure 4 also shows schematically that at least in the most upstream third of the extent of the guide vanes VNE along the main flow direction MFD, an axial projection of a cover disc-side guide vane track DDS and a wheel disc-side guide vane track DRS at least one overhang from the cover disc-side guide vane track DDS to the wheel disc-side guide vane track DRS of at least an area proportion > 5% with respect to the cover disc-side Having vane track surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (13)

  1. Dispositif (ARG), dans lequel un fluide (PFF) de processus peut passer suivant une direction (MFD) d'écoulement principal, comprenant une roue (IMP) à aube, pouvant tourner autour d'un axe (X) dans un sens (RTD) de rotation, et un diffuseur (DFF) se trouvant en aval de la roue (IMP) à aube et aileté d'aubes (VNE) directrices,
    dans lequel la roue (IMP) à aube à une entrée (INI) pour un écoulement d'arrivée sensiblement axial et une sortie (EXI) pour un écoulement d'évacuation sensiblement radial,
    dans lequel entre un disque (HWI) de roue et un disque (SWI) de couverture de la roue (IMP) à aube, sont disposées des aubes (BLD) mobiles s'étendant radialement et axialement, qui délimitent des canaux (ICH) de roue à aube dans une direction (CDR) de pourtour les uns des autres,
    dans lequel le diffuseur (DFF) s'étend sensiblement radialement suivant la direction (MFD) d'écoulement principal,
    dans le diffuseur (DFF) a un côté (SWS) axial de disque de recouvrement et un côté (HWS) axial de disque de roue, qui délimite entre eux une largeur (SAC) axiale de canal du diffuseur (DFF), dans lequel le diffuseur (DFF) a une entrée (IND) de diffuseur pour un écoulement d'arrivée sensiblement radial et une sortie (EXD) de diffuseur,
    dans lequel, entre le côté (HWS) de disque de roue et le côté (SWS) de disque de recouvrement du diffuseur (DFF), sont disposées des aubes (VNE) directrices s'étendant axialement suivant une direction et à hauteur des aubes et radialement suivant une direction de passage de l'écoulement, qui délimitent des canaux (HCN) d'aube directrice dans une direction (CDR) de pourtour entre eux,
    caractérisé en ce qu'
    un angle (VBA) de courbure de profil, qui est un angle entre une tangente (TLV) à une ligne (BWL) de squelette dans la partie de bord d'entrée avec une tangente (TTV) à la ligne (BWL) de squelette dans la partie (TEA) de bord de sortie, est plus petit du côté du disque de recouvrement que du côté du disque de roue, l'angle (VBA) de courbure de profil étant mesuré positif mathématiquement en partant de la tangente (TLV) à la ligne (BWL) de squelette dans la partie du bord d'entrée.
  2. Dispositif (ARG) suivant la revendication 1,
    dans lequel les aubes (VNE) directrices sont constituées de manière à définir un angle (LEA) de bord d'entrée pour chaque hauteur axiale d'aube comme angle entre une tangente (TLV) de bord d'entrée à une ligne (BWL) de squelette à un bord (DLE) d'entrée de l'aube (VNE) directrice respective et une tangente (CTG) de pourtour par le bord d'entrée,
    dans lequel l'angle (LEA) de bord d'entrée est plus petit du côté du disque de recouvrement que du côté du disque de roue,
    dans lequel l'angle (LEA) de bord d'entrée est l'angle positif mathématiquement en allant de la tangente (CTG) de pourtour jusqu'à la tangente (TLV) au bord d'entrée.
  3. Dispositif (ARG) suivant la revendication 2,
    dans lequel la valeur absolue de la différence entre l'angle (LEA) de bord d'entrée du côté du disque de recouvrement et du côté du disque de roue est d'au moins 5°.
  4. Dispositif (ARG) suivant la revendication 1, 2 ou 3,
    dans lequel l'angle (AOA) d'incidence des aubes (VNE) directrices est plus petit du côté du disque de recouvrement que du côté du disque de roue, dans lequel, à partir de la tangente (CTG) au pourtour, l'angle (AOA) d'incidence est un angle mesuré positif mathématiquement sur la corde (VCH) de profil.
  5. Dispositif (ARG) suivant la revendication 4,
    dans lequel la valeur absolue de la différence entre l'angle (AOA) d'incidence du côté du disque de recouvrement et du côté du disque des roues des aubes (VNE) directrices est d'au moins 5°.
  6. Dispositif (ARG) suivant l'une des revendications 1 à 5, dans lequel le quotient de la largeur (SAC) axiale du canal du diffuseur (DFF) aileté au diamètre (DIE) de sortie maximum de la roue à aube est plus grande que 0,04.
  7. Dispositif (ARG) suivant l'une des revendications 1 à 6, dans lequel le quotient de la largeur (SAC) axiale de canal du diffuseur aileté à la largeur (IAC) axiale de canal de la roue (IMP) à aube est au diamètre (DIE) maximum de sortie de la roue à aube plus petit que 0,95.
  8. Dispositif (ARG) suivant l'une des revendications 1 à 7, dans lequel les aubes (VNE) directrices sont constituées de manière à définir un angle (VTC) d'incidence d'entrée comme un angle positif mathématiquement entre une tangente à la ligne (BWL) de squelette dans la partie du bord d'entrée avec la corde (VCH) de profil et en ce que l'angle (VTC) d'incidence d'entrée est plus petit du côté du disque de recouvrement que du côté du disque de roue.
  9. Dispositif (ARG) suivant au moins l'une des revendications précédentes,
    dans lequel les aubes (VNE) directrices ont une inclinaison, de manière à ce que le bord (DLE) d'entrée soit décalé du côté du disque de recouvrement par rapport au bord (DLE) d'entrée du côté du disque de roue, dans le sens (RTD) de rotation de la roue (IMP) à aube, d'au moins 10 % de la largeur (SAC) axiale de canal du diffuseur (DFF).
  10. Dispositif (ARG) suivant au moins l'une des revendications précédentes,
    dans lequel les aubes (VNE) directrices sont constituées de manière à ce qu'un décalage, dans le sens contraire au sens (RTD) de rotation de la roue (IMP) à aube au bord (DTE) de sortie du côté du disque de recouvrement par rapport au côté du disque de roue, soit plus petit qu'au bord (DLE) d'entrée.
  11. Dispositif (ARG) suivant au moins l'une des revendications précédentes,
    dans lequel le tracé axial des aubes (VNE) directrices du diffuseur (DFF) est réalisé d'une manière incurvée continue du côté du disque de recouvrement au côté du disque de roue.
  12. Dispositif (ARG) suivant au moins l'une des revendications précédentes,
    dans lequel la roue (IMP) à aube est à trois dimensions, de manière à ce que, dans au moins un tiers du côté le plus en aval de l'étendue des aubes (BLD) mobiles le long de la direction (MFD) d'écoulement principal, une projection axiale d'une trace (BDS) d'aube mobile du côté du disque de recouvrement et d'une trace (BRS) d'aube mobile du côté du disque de roue ait au moins un dépassement de la trace (BDS) d'aube mobile du côté du disque de recouvrement par rapport à la trace (BRS) d'aube mobile du côté du disque de roue d'au moins une proportion en surface supérieure à 5% par rapport à la surface de la trace d'aube mobile du côté du disque de recouvrement.
  13. Dispositif (ARG) suivant au moins l'une des revendications précédentes,
    dans lequel le diffuseur (DFF) est à trois dimensions, de manière à ce que, dans au moins un tiers du côté le plus en aval de l'étendue des aubes (VNE) directrices le long de la direction (MFD) d'écoulement principal, une projection axiale d'une trace (DDS) d'aube directrice du côté du disque de recouvrement et une trace (DRS) d'aube directrice du côté du disque de roue d'au moins un dépassement de la trace (DDS) d'aube directrice du côté du disque de recouvrement par rapport à la trace (DRS) d'aube directrice du côté du disque de roue ait au moins une proportion de surface supérieure à 5% par rapport à la surface de la trace d'aube directrice du côté du disque de recouvrement.
EP18759898.2A 2017-09-20 2018-08-20 Dispositif pouvant être traversé Active EP3658781B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17192109.1A EP3460256A1 (fr) 2017-09-20 2017-09-20 Dispositif pouvant être traversé
PCT/EP2018/072379 WO2019057413A1 (fr) 2017-09-20 2018-08-20 Dispositif pouvant être parcouru par un flux

Publications (2)

Publication Number Publication Date
EP3658781A1 EP3658781A1 (fr) 2020-06-03
EP3658781B1 true EP3658781B1 (fr) 2023-01-11

Family

ID=59923318

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17192109.1A Withdrawn EP3460256A1 (fr) 2017-09-20 2017-09-20 Dispositif pouvant être traversé
EP18759898.2A Active EP3658781B1 (fr) 2017-09-20 2018-08-20 Dispositif pouvant être traversé

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP17192109.1A Withdrawn EP3460256A1 (fr) 2017-09-20 2017-09-20 Dispositif pouvant être traversé

Country Status (5)

Country Link
US (1) US11225977B2 (fr)
EP (2) EP3460256A1 (fr)
JP (1) JP7074957B2 (fr)
CN (1) CN111133203B (fr)
WO (1) WO2019057413A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3760876A1 (fr) 2019-07-04 2021-01-06 Siemens Aktiengesellschaft Diffuseur pour une turbomachine
EP3760871A1 (fr) 2019-07-04 2021-01-06 Siemens Aktiengesellschaft Diffuseur pour une turbomachine
EP3805572A1 (fr) 2019-10-07 2021-04-14 Siemens Aktiengesellschaft Diffuseur, turbocompresseur radial

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5469811A (en) * 1977-11-14 1979-06-05 Hitachi Ltd Diffuser for centrifugal compressor

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2372880A (en) * 1944-01-11 1945-04-03 Wright Aeronautical Corp Centrifugal compressor diffuser vanes
US3460748A (en) * 1967-11-01 1969-08-12 Gen Electric Radial flow machine
CN2045433U (zh) 1988-09-26 1989-10-04 上海机械学院 混流式风机
JP3482668B2 (ja) * 1993-10-18 2003-12-22 株式会社日立製作所 遠心形流体機械
CN1074511C (zh) * 1994-12-28 2001-11-07 株式会社荏原制作所 具有可变角度导流装置的涡轮机械
US8016557B2 (en) * 2005-08-09 2011-09-13 Praxair Technology, Inc. Airfoil diffuser for a centrifugal compressor
EP2623794B1 (fr) * 2009-07-19 2018-07-04 Ingersoll-Rand Company Diffuseur de compresseur centrifuge
DE102010020379A1 (de) 2010-05-12 2011-11-17 Siemens Aktiengesellschaft Einstellbarer Radialverdichterdiffusor
US8616836B2 (en) * 2010-07-19 2013-12-31 Cameron International Corporation Diffuser using detachable vanes
JP5608062B2 (ja) 2010-12-10 2014-10-15 株式会社日立製作所 遠心型ターボ機械
US9581170B2 (en) * 2013-03-15 2017-02-28 Honeywell International Inc. Methods of designing and making diffuser vanes in a centrifugal compressor
JP6323454B2 (ja) * 2013-08-06 2018-05-16 株式会社Ihi 遠心圧縮機及び過給機
DE102013114609A1 (de) * 2013-12-20 2015-06-25 Ebm-Papst Mulfingen Gmbh & Co. Kg Radial-Laufrad für einen Trommellüfter und Lüftereinheit mit einem derartigen Radial-Laufrad
JP6242775B2 (ja) * 2014-09-18 2017-12-06 三菱重工業株式会社 遠心圧縮機
DE102014219107A1 (de) 2014-09-23 2016-03-24 Siemens Aktiengesellschaft Radialverdichterlaufrad und zugehöriger Radialverdichter
DE102014222877A1 (de) * 2014-11-10 2016-05-12 Siemens Aktiengesellschaft Laufrad einer Radialturbofluidenergiemaschine, Stufe
DE102016201256A1 (de) 2016-01-28 2017-08-03 Siemens Aktiengesellschaft Strömungsmaschine mit beschaufeltem Diffusor
GB2555567A (en) * 2016-09-21 2018-05-09 Cummins Ltd Turbine wheel for a turbo-machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5469811A (en) * 1977-11-14 1979-06-05 Hitachi Ltd Diffuser for centrifugal compressor

Also Published As

Publication number Publication date
WO2019057413A1 (fr) 2019-03-28
EP3658781A1 (fr) 2020-06-03
US11225977B2 (en) 2022-01-18
EP3460256A1 (fr) 2019-03-27
JP7074957B2 (ja) 2022-05-25
US20200284269A1 (en) 2020-09-10
JP2020534477A (ja) 2020-11-26
CN111133203B (zh) 2021-03-09
CN111133203A (zh) 2020-05-08

Similar Documents

Publication Publication Date Title
EP3658780B1 (fr) Dispositif pouvant être traversé
EP3658781B1 (fr) Dispositif pouvant être traversé
EP2473743B1 (fr) Aube mobile de compresseur pour un compresseur axial
EP2696029B1 (fr) Grille d'aube avec définition de contour de la paroi latérale et turbomachine
EP2096316B1 (fr) Structuration de boîtier pour compresseur axial dans la zone du moyeu
EP3225781B1 (fr) Canal d'aube, grille d'aube et turbomachine
EP2789802B1 (fr) Étage d'aubes pour une turbomachine et procédé associé de fabrication
EP2881548B1 (fr) Compresseur de turbine à gaz
DE102007020025A1 (de) Form eines Gaskanals in einer Axialströmungs-Gasturbinenmaschine
EP2913478B1 (fr) Aubes en tandem d'une turbomachine
EP2927503B1 (fr) Compresseur de turbine à gaz, moteur d'avion et méthode de dimensionnement
EP3460255A1 (fr) Système pouvant être traversé
EP0798447B1 (fr) Aube pour une turbomachine
EP2505851B1 (fr) Aubage de stator pour un compresseur axial dans une turbomachine
EP2746533A1 (fr) Grille d'aube et turbomachine
DE19722353A1 (de) Kreiselpumpe mit einer Einlaufleiteinrichtung
EP3404210A1 (fr) Segment de grille d'aubes d'une turbomachine avec paroi de plateforme non-axisymétrique , grille d'aubes, canal d'aube, plateforme, turbomachine associés
EP2607625B1 (fr) Turbomachine et étage de turbomachine
EP2607626B1 (fr) Turbomachine et étage de turbomachine
EP3358135B1 (fr) Contournage d'une plate-forme de grille d'aube
DE2043083C3 (de) Beschaufelung einer axial durchströmten Turbomaschine
EP3375977A1 (fr) Contournage d'une plate-forme de grille d'aube
DE19612394C2 (de) Schaufelblatt für Strömungsmaschinen
EP3369892B1 (fr) Contournage d'une plate-forme de grille d'aube
EP3805572A1 (fr) Diffuseur, turbocompresseur radial

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200226

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS ENERGY GLOBAL GMBH & CO. KG

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20220822

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502018011420

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1543584

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230215

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20230111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230511

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230411

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230511

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502018011420

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230822

Year of fee payment: 6

Ref country code: CH

Payment date: 20230902

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230824

Year of fee payment: 6

Ref country code: DE

Payment date: 20230828

Year of fee payment: 6

26N No opposition filed

Effective date: 20231012

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230820

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20230820

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230820

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20230831

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230820

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230820

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230820

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230820

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230831