EP2216513A1 - Raccordement de soupape sur une turbomachine à trois coques - Google Patents

Raccordement de soupape sur une turbomachine à trois coques Download PDF

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Publication number
EP2216513A1
EP2216513A1 EP09001833A EP09001833A EP2216513A1 EP 2216513 A1 EP2216513 A1 EP 2216513A1 EP 09001833 A EP09001833 A EP 09001833A EP 09001833 A EP09001833 A EP 09001833A EP 2216513 A1 EP2216513 A1 EP 2216513A1
Authority
EP
European Patent Office
Prior art keywords
valve
ring
housing
angle ring
diffuser
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Withdrawn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
EP09001833A
Other languages
German (de)
English (en)
Inventor
Erhard Kommel
Christoph Kästner
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 EP09001833A priority Critical patent/EP2216513A1/fr
Priority to CN2010800073801A priority patent/CN102317581A/zh
Priority to PCT/EP2010/050798 priority patent/WO2010091940A1/fr
Priority to EP10702462.2A priority patent/EP2396516B1/fr
Publication of EP2216513A1 publication Critical patent/EP2216513A1/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Withdrawn legal-status Critical Current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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/26—Double casings; Measures against temperature strain in casings

Definitions

  • the invention relates to a turbomachine with a valve, wherein the turbomachine comprises an inner inner housing, an outer inner housing and an outer housing, wherein the valve comprises a valve diffuser and a valve housing, wherein the valve housing is connected via a valve flange to the outer housing, wherein the inner inner housing is connected via a first angle ring connection with the valve diffuser.
  • the valve essentially comprises a valve housing and a valve diffuser arranged in the valve.
  • the valve diffuser is usually designed for guiding the flow medium. If the valve diffuser and the inner housing were rigidly coupled together by means of frictional connections, this would lead to stresses and possibly to deformations that are undesirable. Therefore, so-called.
  • Angular ring connections are used. In this case, the valve diffuser and the inner housing each have a groove in which an angle ring is arranged. This results in that a thermal movement can be compensated in both an axial and in a radial direction.
  • a further inner housing is now additionally added between the inner inner housing and the outer housing, which can be referred to as the outer inner housing.
  • the outer inner housing also performs as a result of thermal changes from a thermal movement, which may possibly interfere with the valve diffuser. Another requirement is that the space between the Inner inner housing and the outer inner housing and the outer inner housing and the outer housing should be sealed. Nevertheless, mechanical stresses due to thermal movements should be avoided.
  • turbomachine with a valve
  • the turbomachine comprises an inner inner housing, an outer inner housing and an outer housing
  • the valve comprises a valve diffuser and a valve housing
  • the valve housing is connected via a valve flange with the outer housing
  • the inner inner housing is connected via a first angular ring connection with the valve diffuser
  • the outer inner housing is connected via a second angular ring connection with the valve diffuser.
  • the inner inner housing has a first angular ring arranged in an inner housing angular ring groove.
  • the inner housing angular ring groove and the first angular ring disposed therein are made such that movement of the first angular ring in the inner housing angular ring groove is possible.
  • the material of the first angle ring and the inner inner housing should be chosen appropriately.
  • the tolerances and materials must be selected such that high temperature, high pressure steam can not flow between the first angle ring and the inner casing angular ring groove.
  • the second angle ring connection comprises a second angle ring, which is arranged in a second valve diffuser angle annular groove formed in the valve diffuser.
  • the second angle ring and the second valve diffuser angle annular groove are also formed of materials that allow a thermal movement without causing the seal to wear. The tolerances and materials must be selected accordingly.
  • the outer casing is arranged around the outer inner casing.
  • the outer inner casing is arranged around the inner inner casing.
  • the valve diffuser is designed for the flow of flow medium in a flow direction, wherein the inner housing angular ring groove is formed substantially parallel to the flow direction.
  • Flow medium may in this case be, for example, a vapor, in particular water vapor with high temperatures and high pressures. Since the valve diffuser is substantially elongate and resembles a tube in its appearance, the thermal expansion is to be expected substantially in the longitudinal training. Therefore, a seal that is movable in the flow direction is desirable.
  • the mecanicgepatiuswinkinkelringnut is formed parallel to the flow direction to ensure a good thermal movement in the direction of flow.
  • the second valve diffuser angle annular groove is substantially perpendicular to the flow direction educated.
  • a movement perpendicular to the flow direction at the point of contact between the valve diffuser and the outer inner housing is to be expected.
  • a good heat radiating angular ring assembly at this point would be desirable.
  • second Ventilildiffusorwinkelringnut a good thermal mobility is ensured perpendicular to the flow direction.
  • an intermediate ring is arranged non-positively on the outer inner housing, wherein the intermediate ring is formed a second Eisenringnut for receiving the second angle ring.
  • the intermediate ring is an additional component which is frictionally arranged, for example via stud bolts with capsule nuts on the outer inner housing.
  • the intermediate ring has a first intermediate ring groove for receiving the first angle ring.
  • the first angle ring connection has a first and a second angle ring leg, the first angle ring leg being arranged in the inner casing angular ring groove and the second angle ring leg being arranged in a first valve diffuser groove or intermediate ring groove arranged in the valve diffuser or in the angle ring.
  • first intermediate ring groove and the second intermediate ring groove are arranged substantially perpendicular to one another. This ensures a very good mobility both in the flow direction and perpendicular to the flow direction.
  • the FIG. 1 shows in cross section, a part of a three-shell turbomachine.
  • the turbomachine may be, for example, a steam turbine.
  • the steam turbine comprises an outer housing 1, an outer inner housing 2 and an inner inner housing 3.
  • the rotor is rotatably mounted about a rotation axis perpendicular to the plane of the drawing.
  • the inner inner casing 3 is arranged around the rotor.
  • the outer inner casing 2 is disposed substantially around the inner inner casing 3.
  • the outer casing is finally arranged around the outer inner casing 2 and the inner inner casing 3.
  • the valve substantially comprises the valve diffuser 4 and a valve housing 7.
  • the inner inner housing 3 comprises a first angle ring connection 8, which makes it possible to heat-couple the inner inner housing 3 with the valve diffuser 4.
  • the purpose of the first angle ring connection 8 is to allow an effective seal between the inflow region 6 and the sealing space 10, which is arranged between the inner inner casing 3 and the outer inner casing 2.
  • the second angle ring connection 9 is also designed to allow an effective seal between the inflow region 6 and the second sealing space 11 which is arranged between the outer inner housing 2 and the outer housing 1.
  • the first angle ring connection 8 comprises a first angle ring 14 and a réellegepurusingwinkelringnut 15 arranged in the inner inner housing 3. Furthermore, the first angle ring connection 8 comprises an intermediate ring groove 17 arranged in an intermediate ring 16. The intermediate annular groove 17 is produced by a ring component 18.
  • the ring component 18 is formed such that it is on the one hand connected to the intermediate ring 16 frictionally and on the other hand, an intermediate annular groove 17 is formed, in which the first angle ring 14 is arranged.
  • the frictional connection between the ring component and the intermediate ring 16 is realized by a thread 32.
  • the first angle ring 14 comprises a first angle ring leg 19 and a second angle ring leg 20.
  • the first angle ring leg 19 and the second angle ring leg 20 are substantially perpendicular to each other.
  • the second angle ring connection 9 essentially comprises a second angle ring 21.
  • the second angle ring 21 comprises a first angle ring leg 22 and a second angle ring leg 23.
  • the first angle ring leg 22 and the second angle ring leg 23 are substantially perpendicular to each other.
  • the first angle ring leg 22 is arranged in a corresponding second intermediate ring groove 24.
  • the second angle ring leg 23 is arranged in a corresponding valve diffuser groove 25.
  • the valve diffuser groove 25 is made in the valve diffuser 4 ring component 26.
  • the further ring component 26 is frictionally coupled by a thread 33 with the valve diffuser 4 and thereby formed such that the valve diffuser groove 25 is formed.
  • the intermediate ring 16 is connected via stud bolts 27 with capsule nuts to the outer inner housing 2.
  • FIG. 2 an alternative embodiment of the three-shell steam turbine is shown with valve.
  • the main difference compared to the embodiment according to FIG. 1 is that the intermediate ring 16 is omitted and for the valve diffuser 4 is extended accordingly, so that in the valve diffuser 4 now another valve diffuser groove 28 is formed and suitable for receiving the first angular ring 14.
  • the second angle ring 21 is disposed directly with the outer inner casing 2 in an outer inner casing groove 29.
  • FIG. 3 is another alternative embodiment of the three-bladed steam turbine to see.
  • the difference between embodiment according to FIG. 3 and the embodiment according to FIG. 2 is that the second angle ring 21 is not directly with the outer inner housing 2 in an outer mecanicgepurusenut 29 is arranged, but that an insert 30 is provided, which is non-positively connected to the outer inner housing 2 and has an insertion groove 31 for receiving the second angle ring 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Housings (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP09001833A 2009-02-10 2009-02-10 Raccordement de soupape sur une turbomachine à trois coques Withdrawn EP2216513A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP09001833A EP2216513A1 (fr) 2009-02-10 2009-02-10 Raccordement de soupape sur une turbomachine à trois coques
CN2010800073801A CN102317581A (zh) 2009-02-10 2010-01-25 在三壳式涡轮机上的阀连接
PCT/EP2010/050798 WO2010091940A1 (fr) 2009-02-10 2010-01-25 Raccordement de soupape à une turbomachine à trois coques
EP10702462.2A EP2396516B1 (fr) 2009-02-10 2010-01-25 Raccordement de soupape sur une turbomachine à trois coques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09001833A EP2216513A1 (fr) 2009-02-10 2009-02-10 Raccordement de soupape sur une turbomachine à trois coques

Publications (1)

Publication Number Publication Date
EP2216513A1 true EP2216513A1 (fr) 2010-08-11

Family

ID=40790839

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09001833A Withdrawn EP2216513A1 (fr) 2009-02-10 2009-02-10 Raccordement de soupape sur une turbomachine à trois coques
EP10702462.2A Not-in-force EP2396516B1 (fr) 2009-02-10 2010-01-25 Raccordement de soupape sur une turbomachine à trois coques

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10702462.2A Not-in-force EP2396516B1 (fr) 2009-02-10 2010-01-25 Raccordement de soupape sur une turbomachine à trois coques

Country Status (3)

Country Link
EP (2) EP2216513A1 (fr)
CN (1) CN102317581A (fr)
WO (1) WO2010091940A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2551463A1 (fr) * 2011-07-29 2013-01-30 Siemens Aktiengesellschaft Raccordement de soupape sur une turbomachine
EP2947277A1 (fr) * 2014-05-22 2015-11-25 Siemens Aktiengesellschaft Liaison de bague de butée d'angle démontable
EP2987962A1 (fr) * 2014-08-22 2016-02-24 Siemens Aktiengesellschaft Système destiné à relier une vanne à un boîtier

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104033190B (zh) * 2014-06-26 2016-08-24 上海电气电站设备有限公司 一种三层壳汽轮机的进汽结构
CN106523040A (zh) * 2017-01-10 2017-03-22 上海电气电站设备有限公司 汽轮机的汽缸与进汽阀的连接结构
EP3453848A1 (fr) * 2017-09-08 2019-03-13 Siemens Aktiengesellschaft Turbine à vapeur dotée d'une chambre de piquage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1551216A1 (de) * 1967-03-23 1970-02-12 Siemens Ag Bewegliche Rohrverbindung fuer Ventile von Dampfturbinen
JPS59224404A (ja) * 1983-06-01 1984-12-17 Fuji Electric Co Ltd 超高温蒸気タ−ビンの蒸気導入管
EP0128343A1 (fr) * 1983-06-09 1984-12-19 BBC Aktiengesellschaft Brown, Boveri & Cie. Turbine à carter double avec au moins une soupape pour l'alimentation horizontale de la vapeur
US4802679A (en) * 1987-12-31 1989-02-07 Westinghouse Electric Corp. Bell seal of improved stability for high pressure turbines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4238337B2 (ja) * 2001-01-10 2009-03-18 富士電機システムズ株式会社 蒸気タービン

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1551216A1 (de) * 1967-03-23 1970-02-12 Siemens Ag Bewegliche Rohrverbindung fuer Ventile von Dampfturbinen
JPS59224404A (ja) * 1983-06-01 1984-12-17 Fuji Electric Co Ltd 超高温蒸気タ−ビンの蒸気導入管
EP0128343A1 (fr) * 1983-06-09 1984-12-19 BBC Aktiengesellschaft Brown, Boveri & Cie. Turbine à carter double avec au moins une soupape pour l'alimentation horizontale de la vapeur
US4802679A (en) * 1987-12-31 1989-02-07 Westinghouse Electric Corp. Bell seal of improved stability for high pressure turbines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2551463A1 (fr) * 2011-07-29 2013-01-30 Siemens Aktiengesellschaft Raccordement de soupape sur une turbomachine
EP2947277A1 (fr) * 2014-05-22 2015-11-25 Siemens Aktiengesellschaft Liaison de bague de butée d'angle démontable
WO2015176882A1 (fr) * 2014-05-22 2015-11-26 Siemens Aktiengesellschaft Liaison amovible à bague angulaire
EP2987962A1 (fr) * 2014-08-22 2016-02-24 Siemens Aktiengesellschaft Système destiné à relier une vanne à un boîtier
WO2016026902A1 (fr) * 2014-08-22 2016-02-25 Siemens Aktiengesellschaft Système d'assemblage d'une soupape à un carter

Also Published As

Publication number Publication date
WO2010091940A1 (fr) 2010-08-19
EP2396516A1 (fr) 2011-12-21
EP2396516B1 (fr) 2015-12-02
CN102317581A (zh) 2012-01-11

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