WO2006117257A1 - Dampfturbine - Google Patents
Dampfturbine Download PDFInfo
- Publication number
- WO2006117257A1 WO2006117257A1 PCT/EP2006/060552 EP2006060552W WO2006117257A1 WO 2006117257 A1 WO2006117257 A1 WO 2006117257A1 EP 2006060552 W EP2006060552 W EP 2006060552W WO 2006117257 A1 WO2006117257 A1 WO 2006117257A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steam turbine
- housing
- lid
- outer housing
- inner housing
- Prior art date
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
- 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
-
- 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
-
- 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
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
- F05D2230/61—Assembly methods using limited numbers of standard modules which can be adapted by machining
-
- 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
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
- F05D2230/642—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins using maintaining alignment while permitting differential dilatation
-
- 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
- F05D2240/00—Components
- F05D2240/55—Seals
Definitions
- the invention relates to a steam turbine having a Wegscha- shell housing which an outer housing and a therein be ⁇ disposed inner housing comprises, and with a ⁇ housing through the outer guided connection to the inlet / or discharging and steam into the inner housing, wherein the terminal is designed with a pair of connection openings, which are formed on the inner housing opposite to each other.
- a bivalve embodiment of housings on steam turbines is preferably used when the steam turbine is subjected to an expansion of live steam or hot reheated steam.
- the expansion takes place in the inner housing, which is surrounded by the outer housing, which receives the expanded steam (exhaust steam).
- the réellege ⁇ housing is cooled and at the same time carries the majority of the pressure, which is useful especially at high vapor pressures.
- a pair of on the inner housing opposite to each other Connection openings provided with associated lines are used. During operation of such a steam turbine, live steam is uniformly supplied through the lines at both connection openings, as a result of which the cutting forces occurring on the inner housing due to the steam supply substantially equalize.
- Blade rotor rotating in a stator consisting of a lower part and an upper part disclosed.
- DE 18 12 488 A1 discloses a multi-shell axial turbine with an outer housing and an inner housing split in the axial plane and with live steam inserts guided through the outer and inner housing to the step room in a vapor-tight and heat-permeable manner.
- the invention therefore, the task of a steam turbine intricatezu ⁇ ask that operates economically even with small vapor flow, although the steam line connection is to be managed by simple assembly, and occur when no big cutting forces in steam flow.
- this object is achieved with an input genann ⁇ th steam turbine, which is characterized in that at a first port a line for feeding and / or discharge of steam can be connected and the second port is sealed with a lid. Due to the fact that the connecting opening, which can be provided with the conduit, and the connection openings, which are closed with the lid, are located in each other Inner housing opposite, is similar to the connection of two steam supply lines to the opposing connection openings, a force balance in the inner housing with steam flowing through the line causes. The emergence of radial or lateral cutting forces is thereby largely prevented. In the steam turbine according to the invention, it is thus possible to connect the steam supply line firmly to the outer housing and to make the connection to the inner housing flexible. For a simple installation of the steam supply line is possible.
- the closure of the second connection opening with the cover is designed such that the cover at a vapor pressure increase in the inner housing with respect to a force on the inner and / or outer housing substantially as the line connected to the first opposite port behaves.
- the connection openings are arranged opposite one another and thus the forces generated by a vapor pressure increase on the inner housing can be diverted substantially symmetrically onto the outer housing and the inner housing, the formation of cutting forces on the inner housing is largely avoided.
- expedient from the guide closure of the second connection opening with the lid is designed such that the lid behaves in thermal deformations of the steam turbine with respect to a force on the inner and / or outer housing substantially as the connected to the first, opposite port opening line.
- the lid is designed with a stationary fixation on the outer housing and a heat-movable coupling to the inner housing.
- a heat-movable coupling on the inner housing can be done by plugging the lid onto a pipe socket of the connection opening with play in the direction of insertion. In this case, in heat deformation of the inner housing in which the connection opening is moved to the outer housing to or from this, this relative movement is compensated by the play between the cover and the connection opening.
- the lid is fixed in place.
- the line is also heat-movable on the inner housing, such as by attaching to a pipe socket coupled to the associated connection opening and fixed to the outer housing stationary. Furthermore, this arrangement results overall in an ideal cushioning of pipe deformation.
- the lid is essentially cup-shaped.
- the cup shape structurally represents an approximation to the tubular form of the Lei ⁇ processing represents.
- the mechanical behavior between steam feed and cover will be better coordinated reasonable fit, resulting in an optimal force balance effect is ER.
- the open edge portion of the substantially cup-shaped lid is attached to the outer housing, in particular flanged.
- the attachment by means of a flange allows a very secure fixation of the cover on the outer housing, whereby the stability of the overall system is increased.
- the bottom section of the essentially cup-shaped cover is arranged on the inner housing, in particular movably sealed. This avoids the escape of steam, which would considerably reduce the efficiency of the steam turbine. Nevertheless, the cover remains movable relative to the inner housing, whereby thermal expansions of the housing material are permitted when exposed to steam.
- a channel for dewatering the inner and / or outer housing is formed in the lid.
- This condensate formed in the inner housing orclassge ⁇ housing be removed from the turbine. Stagnant condensate remaining in the turbine can, due to the different heat transfer, lead to asymmetrical structures or housing deformations. As a result, it can even lead to game bridging in extreme cases.
- unbalanced housing deformations can be avoided and the mechanical behavior of rotor to stationary housing can be improved. In this way, radial play can be minimized in the mechanical design, which leads to an increase in efficiency.
- a lid for closing an opening is further provided according fiction, ⁇ for closing a connection opening a steam turbine with a two-shell housing, which a Outer housing and an inner housing arranged therein, and a guided through the outer housing, the Ranöff ⁇ tion having connection for supplying and / or removing steam is formed in the inner housing.
- FIG. 1 a sectional view of an embodiment of a steam turbine according to the invention with a lid attached to a Anschlußöff ⁇ tion.
- the Fig. I is a sectional view of a steam turbine according to the invention.
- a shaft 11 which is surrounded by an inner housing 2.
- This can be axisymmetric, but does not necessarily have to be symmetrical.
- an outer housing 1 which may also be designed axially symmetric, arranged.
- Steam or hot reheated steam or exhaust steam can be via a steam feed line 6 into the inner casing 2 under high pressure or fed to ⁇ leads are. Due to the success thereon expansion of the steam supplied ⁇ led, the shaft 11 is driven. Then, the expanded steam is passed through the cavity between the outer housing 1 and the inner housing 2, whereby a cooling of the inner housing 2 is effected.
- the steam turbine has a relation to the Fig., Both from the left side as well guided from the right side through the outer housing 1 connection 3 for feeding and / or Abon ⁇ ren of steam into the inner casing 2.
- This connection 3 has two opposite connection openings 4 and 5 on the inner housing 2.
- the connection openings 4 and 5 are each carried out with a pipe extension 13 and 14, respectively.
- the line 6 is attached to the supply and / or discharge of steam.
- the line 6 is flanged to the outer housing 1 and thus fixed thereto fixed.
- Relative movements between the inner housing 2 and the outer housing 1, both in the radial and axia ⁇ ler direction, such as caused by thermal deformation of the inner housing 1 and by thermal deformation of the conduit 6 are by a heat-resistant seal between the conduit 6 and the first tubular extension 13, the present case by means of a first L-ring 12, balanced.
- the second connection opening 5 opposite the first connection opening 4 is provided with a second pipe extension 14 corresponding to the first pipe extension 13. Then a cup-shaped lid 7 is attached.
- the cup-shaped cover 7 has a bottom section 9 for sealing the second connection opening 5 and an open edge section 8. This open edge portion 8 is flanged on the outer housing 1 ⁇ .
- the cover 7 in the same way as the connecting line 6, namely fixed on the outer housing 1 befits ⁇ taken.
- a ring projection 15 is formed at the bottom of the bottom portion 9, ie on the cup ⁇ outside a ring projection 15 is formed.
- This Ringan ⁇ rate 15 is attached to the second pipe socket 14 of the connection opening 5.
- This heat-movable seal is carried out in the present case by means of a second L-ring 12 '.
- the L-rings 12 and 12 'simultaneously seal the interior of the inner housing 2 from the intermediate space between the outer housing 1 and the inner housing 2.
- any type of piston rings, Wellrohrkompensatoren or any other type of seal can be used, which allow both sealing and relative movements between the inner housing and outer housing.
- the cover 7 has a channel 10 for draining the inner housing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT06724974T ATE526490T1 (de) | 2005-05-03 | 2006-03-08 | Dampfturbine |
US11/919,856 US8192142B2 (en) | 2005-05-03 | 2006-03-08 | Steam turbine |
CN2006800152046A CN101171402B (zh) | 2005-05-03 | 2006-03-08 | 蒸汽透平 |
PL06724974T PL1877650T3 (pl) | 2005-05-03 | 2006-03-08 | Turbina parowa |
EP06724974A EP1877650B1 (de) | 2005-05-03 | 2006-03-08 | Dampfturbine |
JP2008509399A JP2008540895A (ja) | 2005-05-03 | 2006-03-08 | 蒸気タービン |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05009709A EP1719880A1 (de) | 2005-05-03 | 2005-05-03 | Dampfturbine |
EP05009709.6 | 2005-05-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006117257A1 true WO2006117257A1 (de) | 2006-11-09 |
Family
ID=35044885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/060552 WO2006117257A1 (de) | 2005-05-03 | 2006-03-08 | Dampfturbine |
Country Status (7)
Country | Link |
---|---|
US (1) | US8192142B2 (de) |
EP (2) | EP1719880A1 (de) |
JP (1) | JP2008540895A (de) |
CN (1) | CN101171402B (de) |
AT (1) | ATE526490T1 (de) |
PL (1) | PL1877650T3 (de) |
WO (1) | WO2006117257A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2551472A1 (de) * | 2011-07-29 | 2013-01-30 | Siemens Aktiengesellschaft | Gehäuse für eine Strömungsmaschine |
CN103352731B (zh) * | 2013-07-08 | 2015-01-21 | 哈尔滨汽轮机厂有限责任公司 | 一种汽轮机高压双层缸定位键的安装方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE852247C (de) * | 1950-09-07 | 1952-10-13 | Siemens Ag | Dampfzufuehrung bei Dampfturbinen |
DE1812488A1 (de) * | 1968-12-03 | 1970-09-03 | Siemens Ag | Frischdampfzufuehrung bei mehrschaligen Dampfturbinen |
DE2739076A1 (de) * | 1976-09-14 | 1978-03-23 | Creusot Loire | Turbomaschine |
DE4425352A1 (de) * | 1994-07-18 | 1996-01-25 | Abb Patent Gmbh | Dampfturbine mit einem im Gußverfahren hergestellten Turbinengehäuse |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2402841A (en) * | 1944-06-26 | 1946-06-25 | Allis Chalmers Mfg Co | Elastic fluid turbine apparatus |
CH665450A5 (de) * | 1983-06-09 | 1988-05-13 | Bbc Brown Boveri & Cie | Ventil fuer horizontale dampfzufuehrung an zweigehaeuseturbinen. |
DE3522917A1 (de) * | 1985-06-27 | 1987-01-08 | Kraftwerk Union Ag | Lageranordnung fuer turbomaschinen, insbesondere dampfturbinen |
JPH01167403A (ja) | 1987-12-23 | 1989-07-03 | Hitachi Ltd | 高圧ケーシング管台閉止板取付部構造 |
JPH0377367A (ja) | 1989-08-21 | 1991-04-02 | Fujitsu Ltd | 半導体記憶装置 |
JP2954797B2 (ja) * | 1992-10-05 | 1999-09-27 | 株式会社東芝 | 蒸気タ−ビンの強制冷却装置 |
JPH1193617A (ja) | 1997-09-22 | 1999-04-06 | Hitachi Ltd | 原子炉給水ポンプ駆動用蒸気タービン排気管の据付工法 |
CN100516469C (zh) * | 2003-04-07 | 2009-07-22 | 阿尔斯通技术有限公司 | 涡轮机 |
US6898935B2 (en) * | 2003-07-25 | 2005-05-31 | Bj Services Company | System and method of cooling steam turbines |
CH698879B1 (de) * | 2006-06-30 | 2009-11-30 | Alstom Technology Ltd | Strömungsmaschine. |
-
2005
- 2005-05-03 EP EP05009709A patent/EP1719880A1/de not_active Withdrawn
-
2006
- 2006-03-08 CN CN2006800152046A patent/CN101171402B/zh active Active
- 2006-03-08 US US11/919,856 patent/US8192142B2/en active Active
- 2006-03-08 EP EP06724974A patent/EP1877650B1/de active Active
- 2006-03-08 JP JP2008509399A patent/JP2008540895A/ja active Pending
- 2006-03-08 PL PL06724974T patent/PL1877650T3/pl unknown
- 2006-03-08 AT AT06724974T patent/ATE526490T1/de active
- 2006-03-08 WO PCT/EP2006/060552 patent/WO2006117257A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE852247C (de) * | 1950-09-07 | 1952-10-13 | Siemens Ag | Dampfzufuehrung bei Dampfturbinen |
DE1812488A1 (de) * | 1968-12-03 | 1970-09-03 | Siemens Ag | Frischdampfzufuehrung bei mehrschaligen Dampfturbinen |
DE2739076A1 (de) * | 1976-09-14 | 1978-03-23 | Creusot Loire | Turbomaschine |
DE4425352A1 (de) * | 1994-07-18 | 1996-01-25 | Abb Patent Gmbh | Dampfturbine mit einem im Gußverfahren hergestellten Turbinengehäuse |
Also Published As
Publication number | Publication date |
---|---|
PL1877650T3 (pl) | 2012-02-29 |
EP1877650A1 (de) | 2008-01-16 |
US8192142B2 (en) | 2012-06-05 |
EP1719880A1 (de) | 2006-11-08 |
EP1877650B1 (de) | 2011-09-28 |
CN101171402B (zh) | 2011-03-09 |
JP2008540895A (ja) | 2008-11-20 |
ATE526490T1 (de) | 2011-10-15 |
US20090196746A1 (en) | 2009-08-06 |
CN101171402A (zh) | 2008-04-30 |
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