EP2396516A1 - Raccordement de soupape à une turbomachine à trois coques - Google Patents

Raccordement de soupape à une turbomachine à trois coques

Info

Publication number
EP2396516A1
EP2396516A1 EP10702462A EP10702462A EP2396516A1 EP 2396516 A1 EP2396516 A1 EP 2396516A1 EP 10702462 A EP10702462 A EP 10702462A EP 10702462 A EP10702462 A EP 10702462A EP 2396516 A1 EP2396516 A1 EP 2396516A1
Authority
EP
European Patent Office
Prior art keywords
ring
valve
housing
inner housing
angle
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
Application number
EP10702462A
Other languages
German (de)
English (en)
Other versions
EP2396516B1 (fr
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 EP10702462.2A priority Critical patent/EP2396516B1/fr
Publication of EP2396516A1 publication Critical patent/EP2396516A1/fr
Application granted granted Critical
Publication of EP2396516B1 publication Critical patent/EP2396516B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 Ven ⁇ til, wherein the turbomachine comprises an inner inner housing, an outer and an inner housing configuredgehause, wherein the valve comprises a valve diffuser and a valve housing wherein the valve housing is connected via a valve flange with the foundedgehause, wherein the inner mecanicgehause is connected via a first Winkelrmgverbmdung with the valve diffuser.
  • the valve essentially comprises a valve housing and a valve fittor arranged in the valve.
  • the valve diffuser is usually designed for guiding the flow medium.
  • Angular ring connections are used.
  • the valve diffuser and the inner housing each have a groove in which an angle ring is arranged. This leads to the fact that a warming movement in both an axial and in a radial direction can be compensated.
  • an additional interior housing is now added between the inner inner housing and the outer housing, which can be referred to as an outer interior housing.
  • the outer réellegehause also leads as a result of thermal changes from a warming movement, which may possibly interfere with the valve diffuser.
  • Another requirement is that the space between the inner réellegehause and the outer réellegehause and the outer réellegehause and the outer housing should be sealed. Nevertheless, mechanical stresses due to warm movements should be avoided.
  • the inner inner housing has a first angle ring arranged in a réellegehausewmkelrmgnut.
  • the réellegehausewmkelrmgnut and the first angle ring arranged therein are made such that a movement of the first angle ring in the nengehausewmkelrmgnut is possible.
  • the movement should not be restricted as a result of tempera ⁇ turan requirements.
  • the material of the first angle ring and the inner réellegehauses should be chosen appropriately.
  • the tolerances and materials must be selected such that high temperature and high pressure steam can not flow between the first angle ring and the inner housing wiper groove.
  • the second angle ring connection comprises a second angle ring which is arranged in a second valve diffuser formed in the valve diffuser.
  • the second angle ring and the second valve diffuser angle are also formed of materials that allow for a warming motion without causing the seal to relax. The tolerances and materials must be selected accordingly.
  • the outer housing is in this case arranged around the outer inner housing ⁇ .
  • the outer réellegehause is arranged around the inner réellegehause.
  • the valve diffuser is designed for the flow of flow medium in a flow direction, wherein the internal housing angle is formed substantially parallel to the flow direction.
  • the flow medium can be, for example, a vapor, in particular water vapor with high temperatures and high pressures. Since the valve diffuser is substantially elongated and resembles a tube in its appearance, the thermal expansion is to be expected substantially in the long training. Therefore, a seal is desirable ⁇ worth, which is movable in the flow direction.
  • the internal housing angularity is formed parallel to the direction of flow in order to ensure a good warming movement in the direction of flow.
  • the second valve diffuser angle is substantially perpendicular to the flow direction.
  • thermal expansion of the outer mecanical ticaal stowages is essentially a movement perpendicular to the flow direction at the Beruhrungsstelle between the valve diffuser and the outer mecanicgehause expected.
  • Job would be desirable.
  • the second valve diffuser arranged substantially perpendicular to the direction of flow. Sorwinkelringnut is a good Warmebewegige perpendicular to the direction of flow ensured.
  • an intermediate ring is arranged on the outer kraft gleichig inner housing, wherein the intermediate ring is formed on a second intermediate ring groove to accept 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 annular groove for receiving the first angular ring.
  • the first angle-ring connection has a first and a second angle leg, wherein the first angle-ring leg is arranged in the inner-housing angle and the second angle-ring leg is arranged in a first valve diffuser groove or intermediate annular 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 direction of flow and perpendicular to the direction of flow.
  • FIG. 1 shows a cross-sectional view of a part of a three-leaf flow machine
  • FIG. 2 shows a cross-sectional view of a part of a three-leaf flow machine in an alternative embodiment
  • FIG 3 shows a cross section of a part of a three-shell steam turbine in an alternative embodiment.
  • FIG. 1 seen in cross-section, shows part of a three-shell flow machine.
  • the flow machine may for example be 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 réellegehause 3 is arranged around the rotor.
  • the outer réellegehause 2 is arranged substantially around the inner réellegehause 3.
  • To the outer réellegehause 2 and the inner réellegehause 3 finally the outer housing is arranged.
  • valve diffuser 4 In operation, steam flows in a valve diffuser 4 in a flow direction 5 into a flow region 6 of the steam turbine.
  • the steam is flowed into the inflow area 6 via a valve, which is not shown in any more detail.
  • the valve substantially comprises the valve diffuser 4 and a valve housing 7.
  • the inner inner housing 3 comprises a first annular collar connection 8, which makes it possible to warmly couple the inner inner housing 3 to the valve diffuser 4.
  • the first Angle ring connection 8 serves the purpose of enabling an effective seal between the inflow region 6 and the sealing space 10, which is arranged between the inner inner housing 3 and the outer êtge- home 2.
  • the second angle 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 outer devisgehause 2 can also exercise warming movements in the flow direction 12 and perpendicular to the flow direction 13.
  • the first Winkelringverbmdung 8 comprises a first angle ring 14 and a réellegehausewinkelringnut 15 arranged in the inner réellegehause 3 on.
  • 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 designed such that on the one hand to the intermediate ring 16 frictionally ver ⁇ bound 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 Winkelringverbmdung 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 in the valve diffuser 4 is realized by means of a ring component 26.
  • the further ring component 26 is coupled in a non-positive manner by means of a thread 33 to the valve diffuser 4 and is designed 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 êtgehause 2.
  • FIG. 2 shows an alternative embodiment of the three-shell steam turbine with valve.
  • the essential difference in comparison to the embodiment according to FIG. 1 is that the intermediate ring 16 is omitted and the valve diffuser 4 is lengthened accordingly, so that a further valve diffuser groove 28 is now formed in the valve diffuser 4 and is suitable for receiving the first angular ring 14.
  • the second angle ring 21 is disposed directly with the outer réellegehause 2 in an outer réellegehausenut 29.
  • FIG. 3 shows a further alternative embodiment of the three-shell steam turbine.
  • the difference between the embodiment according to FIG. 3 and the embodiment according to FIG. 2 is that the second angle ring 21 is not arranged directly with the outer inner housing 2 in an outer inner housing groove 29, but that an insert 30 is provided which is frictionally engaged with the outer one Inner housing 2 is ver ⁇ connected 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)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne une turbomachine comportant une soupape, la turbomachine comprenant un boîtier extérieur (1), un boîtier intérieur (2) extérieur et un boîtier intérieur (3) intérieur. La turbomachine est ainsi conçue sous la forme de trois coques, un diffuseur de soupape (4) étant accouplé à la turbomachine par l'intermédiaire de deux raccords angulaires (8, 9).
EP10702462.2A 2009-02-10 2010-01-25 Raccordement de soupape sur une turbomachine à trois coques Not-in-force EP2396516B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10702462.2A EP2396516B1 (fr) 2009-02-10 2010-01-25 Raccordement de soupape sur une turbomachine à trois coques

Applications Claiming Priority (3)

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
EP10702462.2A EP2396516B1 (fr) 2009-02-10 2010-01-25 Raccordement de soupape sur une turbomachine à trois coques
PCT/EP2010/050798 WO2010091940A1 (fr) 2009-02-10 2010-01-25 Raccordement de soupape à une turbomachine à trois coques

Publications (2)

Publication Number Publication Date
EP2396516A1 true EP2396516A1 (fr) 2011-12-21
EP2396516B1 EP2396516B1 (fr) 2015-12-02

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 Before (1)

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

Country Status (3)

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

Families Citing this family (6)

* 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
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
EP2987962A1 (fr) * 2014-08-22 2016-02-24 Siemens Aktiengesellschaft Système destiné à relier une vanne à un boîtier
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

Family Cites Families (5)

* 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
CH665450A5 (de) * 1983-06-09 1988-05-13 Bbc Brown Boveri & Cie Ventil fuer horizontale dampfzufuehrung an zweigehaeuseturbinen.
US4802679A (en) * 1987-12-31 1989-02-07 Westinghouse Electric Corp. Bell seal of improved stability for high pressure turbines
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010091940A1 *

Also Published As

Publication number Publication date
EP2216513A1 (fr) 2010-08-11
WO2010091940A1 (fr) 2010-08-19
CN102317581A (zh) 2012-01-11
EP2396516B1 (fr) 2015-12-02

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