EP3569822A1 - Raccordement tubulaire pour une turbomachine - Google Patents

Raccordement tubulaire pour une turbomachine Download PDF

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Publication number
EP3569822A1
EP3569822A1 EP18172278.6A EP18172278A EP3569822A1 EP 3569822 A1 EP3569822 A1 EP 3569822A1 EP 18172278 A EP18172278 A EP 18172278A EP 3569822 A1 EP3569822 A1 EP 3569822A1
Authority
EP
European Patent Office
Prior art keywords
projection
arrangement
connecting element
wall
space
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.)
Withdrawn
Application number
EP18172278.6A
Other languages
German (de)
English (en)
Inventor
Peter Bocska
David FELWOR
Christian Hortig
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 AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Priority to EP18172278.6A priority Critical patent/EP3569822A1/fr
Publication of EP3569822A1 publication Critical patent/EP3569822A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F01D9/00—Stators
    • F01D9/06—Fluid supply conduits to nozzles or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/31—Application in turbines in steam turbines

Definitions

  • the invention relates to an arrangement for establishing a fluidic connection of a first space with a second space, wherein the first space terminates at an exit and the second space begins at an entrance, wherein the exit and the entrance are spaced from each other, wherein a connecting element the output fluidically connected to the input.
  • a steam flows over comparatively large and long pipes in a flow channel.
  • the thermal energy of the steam is converted there into a kinetic energy of the rotor.
  • the available steam is needed in addition to the conversion of thermal energy into kinetic energy for other purposes, such as for heating hollow vanes.
  • the guide vane rings are heated in some applications by the interior of the hollow vanes is subjected to higher temperature steam. This vapor is supplied to the vane ring through an in-line pipeline derived either from the inflow or a higher pressure and higher temperature tapping chamber.
  • the interior of the hollow guide vanes constitutes a pressure chamber, on the inner walls of which a condensation of the steam can take place when the evaporation temperature associated with the pressure of the steam settles. If the pipe has leaks, it could cause erosion corrosion. In addition, it is problematic if the two pressure chambers to be connected by the pipe, tilt or adjust an offset.
  • This object is achieved by an arrangement for establishing a fluidic connection of a first space with a second space, wherein the first space terminates at an exit and the second space begins at an entrance, wherein the exit and the entrance are spaced from each other, wherein a connecting element the output fluidically connects to the input, wherein the connecting element has a first projection which bears against the output of the first space and is designed such that, despite a tilting of the connecting element, the first projection rests against the outlet without a gap.
  • the connecting element has a second projection, which rests against the input of the second space and is designed such that, in spite of a tilting of the connecting element, the second projection rests against the input without a gap.
  • the output has a round-shaped output inner wall, wherein the first projection is formed accordingly and also has a round shaped to the output inner wall and contacting adjacent first protrusion surface.
  • the first projection surface is curved.
  • the second protrusion surface is curved.
  • the curvature is such that at a Tilting of the connecting element, which is usually a rotation about a point, yet no gap is formed. Therefore, advantageously, the first protrusion surface is formed such that it represents a section of a spherical surface.
  • the second projection surface is formed such that it represents a section of a ball surface.
  • the invention is characterized by a simpler design, in which fewer parts are needed and a smaller footprint and a simple repair is possible.
  • the connecting element in the projecting region of the first and / or second projection is designed such that a pressure caused by a medium in the interior of the connecting element to a contact force of the first and / or second projection on the output inner wall and / or entrance inner wall leads.
  • the connecting element is made thinner in this projection area and in such a way that the internal pressure causes an expansion of the connecting element takes place and thereby an improved sealing effect is achieved.
  • the FIG. 1 shows an arrangement 1. Not shown in detail, but symbolized by the reference numeral 2, the arrangement 1 connects a first space 2 with a second space 3. In the first space 2, a vapor may be located, which flow through the arrangement 1 to the second space 3 should. In general, the steam in the space 2 thereby has a higher pressure than in the space 3.
  • the arrangement 1 is for this purpose for the fluidic connection of the first space 2 formed with the second space 3.
  • the first space 2 ends at an output 4.
  • the output 4 is circular.
  • the output 4 may also have an oval shape.
  • first sleeve 5 is arranged in the output 4 adapted to the output 4 first sleeve 5 is arranged.
  • the first space 2 is separated from the second space 3 by a parting line 6.
  • the second space 3 has an inlet 7 which, like the outlet 4, is of circular design, wherein the inlet 7 can also be oval-shaped.
  • a second sleeve 8 is arranged in the entrance 7 in the entrance 7 in the entrance 7 in the entrance 7 in the entrance 7 in the entrance 7 in the entrance 7 in the entrance 7 in the entrance 7 in the entrance 7 in the entrance 7 is also a sleeve, here a second sleeve 8 is arranged.
  • the first sleeve 5 is adjusted gap-free to the output 4.
  • the second sleeve 8 is also matched gap-free to the input 7.
  • the first sleeve 5 has a first sleeve inner surface.
  • the second sleeve 8 has a second sleeve inner surface 10.
  • the output 4 is formed spaced from the input 7.
  • the arrangement 1 further comprises a connecting element 11, which connects the output 4 with the output 7 fluidically.
  • the connecting element 11 is substantially tubular and has a first projection 12, which rests against the output 4 of the first space 2 and is designed such that, despite a tilting of the connecting element 11, the first projection 12 rests against the outlet 4 without a gap.
  • the first projection 12 is located on the first sleeve inner surface 9 without gaps.
  • tilting or displacing the second pressure chamber 3 in the lateral direction does not lead to the occurrence of a gap between the first protrusion 12 and the first inner sleeve surface 9.
  • the first sleeve inner surface 9 is designed as a circular, inner output wall 13 and the The first projection has a round first projection surface 14 which is adapted to the initial inner wall 13 and is in contact with it.
  • the connecting element 11 is formed comparatively symmetrical.
  • the entrance 7 is likewise formed with a round-shaped entrance inner wall 16, which is identical to the second shell inner surface 10 in the region of the second projection 15.
  • the second projection 15 is in this case designed such that it has a round, adapted to the input inner wall 16 and contacting second projection surface 17.
  • the first protrusion surface 14 has a curvature.
  • the second Projecting surface 17 has a curvature.
  • the curvature is designed such that it represents a section of a spherical surface.
  • the second projection surface 17 is such that it represents a section of a spherical surface. This is shown in more detail in FIG.
  • FIG. 3 shows, for example, the first projection 12.
  • the execution too FIG. 3 with respect to the first projection 12 can also be applied to the second projection 15.
  • the projection surface 14, 17 represents a section of a spherical surface.
  • tilting of the connecting element can take place without a gap occurring between the projection surface 14, 17 and the starting inner wall 13 or the input inner wall 16.
  • the connecting element 11 is rotationally symmetrical to an axis of symmetry 18.
  • the FIG. 2 shows a simplified embodiment of the connecting element 11 in comparison to FIG. 1
  • the in the FIG. 2 shown arrangement 1 has compared to FIG. 1 no first sleeve 5 and no second sleeve 8.
  • the first projection 12 and the second projection 15 are arranged directly touching the output inner wall 13 and the input inner wall 16, respectively.
  • the connecting element 11 is in this case tubular. With a thickness D in a protruding portion 19 of the first and / or second protrusions 12, 15, the thickness d of the wall of the connecting element is smaller than the thickness D of the connecting element 11 in the remaining area outside the protruding portions 19.
  • the thickness d is in this case designed such that the pressure force prevailing within the connecting element 11 leads to a contact pressure force on the connecting element 11, so that the first projection 12 and / or the second projection 15 on the output inner wall 13 and input inner wall 16 leads.
  • Lateral movement 20 This means that the exit inner wall 13 or the entrance inner wall 16 moves in the direction shown in FIG. Due to the spherical surface of the first projection 12 and second projection 15, the tightness between the connecting element 11 and the output inner wall 13 and input inner wall 16 remains.
  • Another movement of the second space 13 is represented by the reference numeral 21. This is intended to represent a rotation of the input inner wall 16 about a point 22. This rotation or tilting does not result in leakage between the protrusion surface 14, 17 and the input inner wall 16 due to the ball surface of the protrusion surface 14, 17.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP18172278.6A 2018-05-15 2018-05-15 Raccordement tubulaire pour une turbomachine Withdrawn EP3569822A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18172278.6A EP3569822A1 (fr) 2018-05-15 2018-05-15 Raccordement tubulaire pour une turbomachine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18172278.6A EP3569822A1 (fr) 2018-05-15 2018-05-15 Raccordement tubulaire pour une turbomachine

Publications (1)

Publication Number Publication Date
EP3569822A1 true EP3569822A1 (fr) 2019-11-20

Family

ID=62167197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18172278.6A Withdrawn EP3569822A1 (fr) 2018-05-15 2018-05-15 Raccordement tubulaire pour une turbomachine

Country Status (1)

Country Link
EP (1) EP3569822A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054306A (en) * 1976-05-28 1977-10-18 Pressure Science Incorporated Tube and cylindrical surface sealing apparatus
DE3509359A1 (de) * 1985-02-12 1986-08-14 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Waermebewegliche durchfuehrung
JPS62106193A (ja) * 1985-10-31 1987-05-16 株式会社東芝 伸縮管継手
EP0860587A2 (fr) * 1997-02-21 1998-08-26 Mitsubishi Heavy Industries, Ltd. Tubulure de connexion pour le transfert d'un fluide de réfroidissement d'un disque de rotor à une aube d'une turbomachine
EP0860586A2 (fr) * 1997-02-21 1998-08-26 Mitsubishi Heavy Industries, Ltd. Tubulure de connexion pour le transfert d'un fluide de réfroidissement d'un disque de rotor à une aube d'une turbomachine
JPH1130102A (ja) * 1997-07-11 1999-02-02 Mitsubishi Heavy Ind Ltd ガスタービン冷却通路継ぎ手部のシール構造
US5980201A (en) * 1996-06-27 1999-11-09 Societe Nationale D'etude Et De Construction De Moteurs D'aviation Device for blowing gases for regulating clearances in a gas turbine engine
US6131849A (en) * 1998-12-02 2000-10-17 Mcdonnell Douglas Helicopter Company Articulating/telescoping duct for reaction drive helicopters
WO2017142873A1 (fr) * 2016-02-16 2017-08-24 Florida Turbine Technologies, Inc. Moteur à turbine à gaz industriel doté de refroidissement de rotor de premier et second étage

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054306A (en) * 1976-05-28 1977-10-18 Pressure Science Incorporated Tube and cylindrical surface sealing apparatus
DE3509359A1 (de) * 1985-02-12 1986-08-14 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Waermebewegliche durchfuehrung
JPS62106193A (ja) * 1985-10-31 1987-05-16 株式会社東芝 伸縮管継手
US5980201A (en) * 1996-06-27 1999-11-09 Societe Nationale D'etude Et De Construction De Moteurs D'aviation Device for blowing gases for regulating clearances in a gas turbine engine
EP0860587A2 (fr) * 1997-02-21 1998-08-26 Mitsubishi Heavy Industries, Ltd. Tubulure de connexion pour le transfert d'un fluide de réfroidissement d'un disque de rotor à une aube d'une turbomachine
EP0860586A2 (fr) * 1997-02-21 1998-08-26 Mitsubishi Heavy Industries, Ltd. Tubulure de connexion pour le transfert d'un fluide de réfroidissement d'un disque de rotor à une aube d'une turbomachine
JPH1130102A (ja) * 1997-07-11 1999-02-02 Mitsubishi Heavy Ind Ltd ガスタービン冷却通路継ぎ手部のシール構造
US6131849A (en) * 1998-12-02 2000-10-17 Mcdonnell Douglas Helicopter Company Articulating/telescoping duct for reaction drive helicopters
WO2017142873A1 (fr) * 2016-02-16 2017-08-24 Florida Turbine Technologies, Inc. Moteur à turbine à gaz industriel doté de refroidissement de rotor de premier et second étage

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