EP0385066B1 - Frischdampfdurchführung für Dampfturbinen in Doppelgehäusebauart - Google Patents
Frischdampfdurchführung für Dampfturbinen in Doppelgehäusebauart Download PDFInfo
- Publication number
- EP0385066B1 EP0385066B1 EP90100410A EP90100410A EP0385066B1 EP 0385066 B1 EP0385066 B1 EP 0385066B1 EP 90100410 A EP90100410 A EP 90100410A EP 90100410 A EP90100410 A EP 90100410A EP 0385066 B1 EP0385066 B1 EP 0385066B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steam
- piston ring
- turbine
- welded
- live steam
- 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.)
- Expired - Lifetime
Links
Images
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
Definitions
- the invention relates to a live steam supply between the inner casing and the outer casing of a steam turbine via a piston ring connection.
- Inner casing designs are therefore state of the art in steam turbines, whereby they are conventionally designed as angle ring connections, I-ring connections or piston ring connections.
- Angle ring connections have the disadvantage that their production is complex and expensive. This is because double seats with a high degree of accuracy of fit must be worked on both on the ring and on the ring seats.
- the disadvantage of the I-ring connection is that the ring cannot absorb any relative movements in its plane. In this respect, it can only be used to a limited extent.
- the object of the invention is to provide a single piston ring connection for the live steam duct To improve steam turbines in such a way that an inexpensive, maintenance-friendly and fail-safe supply of live steam through the outer casing to the inner casing of a steam turbine is created.
- the live steam bushing according to the invention ensures that the individual parts can be easily exchanged in the event of wear while minimizing the piston ring sealing surfaces.
- the construction according to the invention is also self-locking if the connecting means of the weld-in socket and the piston ring sleeve break.
- the threaded ring as a flow cladding also prevents the occurrence of temperature differences over the wall thickness of the piston ring carrier bushes of the order of magnitude of the difference between the inlet and inner housing outlet steam temperatures.
- a welding insert (1) is inserted into the opening of the outer casing (9) of a steam turbine (not shown) and welded to the outer casing (9). After welding, the weld-in insert only needs to be machined on the front side together with the corresponding turbine housing half.
- the piston ring carrier bush (2) with the piston rings (4) slides as a loose part in the counter-rotating bush (5).
- the piston ring carrier bush only requires simple machining with regard to the fitting and seating surfaces of the bush and piston ring grooves.
- the piston ring carrier bushing (2) is screwed onto the weld-in insert (1) with stud screws (3).
- the stud bolts have capsule nuts (8).
- the counter-rotating carrier bushing (5) is provided with a threading bevel, in the exemplary embodiment this is 7 °.
- a threaded ring (6) is used to hold the mating bushing (5) in the inner casing (7) of the steam turbine.
- the threaded ring (6) has an upstanding collar which encompasses the capsule nuts (8). In the event of stud bolts breaking, loose capsule nuts or screw parts may be caught in the collar and cannot enter the turbine blades as foreign bodies.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3905900A DE3905900A1 (de) | 1989-02-25 | 1989-02-25 | Frischdampfdurchfuehrung fuer dampfturbinen in doppelgehaeusebauart |
DE3905900 | 1989-02-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0385066A1 EP0385066A1 (de) | 1990-09-05 |
EP0385066B1 true EP0385066B1 (de) | 1993-04-14 |
Family
ID=6374921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90100410A Expired - Lifetime EP0385066B1 (de) | 1989-02-25 | 1990-01-10 | Frischdampfdurchführung für Dampfturbinen in Doppelgehäusebauart |
Country Status (5)
Country | Link |
---|---|
US (1) | US5037270A (ja) |
EP (1) | EP0385066B1 (ja) |
JP (1) | JP2612502B2 (ja) |
DE (2) | DE3905900A1 (ja) |
HU (1) | HU213277B (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5152665A (en) * | 1990-12-24 | 1992-10-06 | Westinghouse Electric Corporation | Methods and apparatus for reducing inlet sleeve vibration |
US5443589A (en) * | 1993-12-30 | 1995-08-22 | Brandon; Ronald E. | Steam turbine bell seals |
DE19815168C2 (de) * | 1998-04-04 | 2001-02-22 | Man Turbomasch Ag Ghh Borsig | Rohrleitungsdurchführung durch zwei oder mehrere Wandungen eines Axialkompressors einer Gasturbine |
JP4015282B2 (ja) | 1998-06-04 | 2007-11-28 | 三菱重工業株式会社 | 高中圧蒸気タービンのフレキシブルインレット管 |
DE10025586C2 (de) * | 2000-05-24 | 2003-02-13 | Siemens Ag | Antriebsstrang für ein Kraftfahrzeug |
EP2025873A1 (de) * | 2007-08-08 | 2009-02-18 | Siemens Aktiengesellschaft | Dampfzuführung für eine Dampfturbine |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1554230A (en) * | 1925-01-06 | 1925-09-22 | Pochobradsky Bedrich Frantisek | Steam turbine |
US2367134A (en) * | 1943-05-29 | 1945-01-09 | Westinghouse Electric & Mfg Co | Steam chest construction |
GB637771A (en) * | 1947-06-02 | 1950-05-24 | Westinghouse Electrical Intern | Improvements in or relating to elastic-fluid turbines |
FR995276A (fr) * | 1948-09-17 | 1951-11-29 | Westinghouse Electric Corp | Perfectionnements aux appareils travaillant à haute temperature tels que les turbines à fluides élastiques |
GB661822A (en) * | 1948-09-17 | 1951-11-28 | Westinghouse Electric Int Co | Improvements in or relating to high temperature apparatus such as a steam turbine |
GB718534A (en) * | 1951-03-10 | 1954-11-17 | British Thomson Houston Co Ltd | Improvements in and relating to high temperature expansion joints |
US2800299A (en) * | 1955-09-30 | 1957-07-23 | Gen Electric | Nozzlebox structure for high temperature steam turbine |
US2956775A (en) * | 1958-05-02 | 1960-10-18 | Gen Electric | Bolted nozzlebox for high pressure steam turbine |
GB846431A (en) * | 1958-06-09 | 1960-08-31 | Westinghouse Electric Corp | Improvements in or relating to elastic fluid turbines |
DE1806138U (de) * | 1959-08-13 | 1960-02-18 | Licentia Gmbh | Waermebewegliche abdichtung der dampfeinstroemung in das innengehaeuse von doppelmantelturbinen. |
DE1576986A1 (de) * | 1967-12-28 | 1970-11-26 | Siemens Ag | Dampfturbine der Doppelgehaeusebauart |
US3907308A (en) * | 1973-09-27 | 1975-09-23 | Westinghouse Electric Corp | Bell seal vibration damper and seal improvement |
SU1138526A1 (ru) * | 1983-09-06 | 1985-02-07 | Харьковский Филиал Центрального Конструкторского Бюро Главэнергоремонта | Совмещенный цилиндр высокого и среднего давлени |
JPS60116804A (ja) * | 1983-11-30 | 1985-06-24 | Hitachi Ltd | 蒸気タ−ビン用ノズルボツクス |
JPH0674722B2 (ja) * | 1984-10-15 | 1994-09-21 | 株式会社日立製作所 | 蒸気タ−ビンの蒸気導入部構造 |
US4750861A (en) * | 1985-10-15 | 1988-06-14 | Cooper Industries | Compressor components support system |
US4772178A (en) * | 1987-01-28 | 1988-09-20 | Westinghouse Electric Corp. | Thermal shield for the steam inlet connection of a steam turbine |
US4850794A (en) * | 1987-08-14 | 1989-07-25 | Westinghouse Electric Corp. | Hardfacing technique and improved construction for inlet steam sealing surfaces of steam turbines |
US4812105A (en) * | 1988-02-18 | 1989-03-14 | Westinghouse Electric Corp. | Bell seal and retaining nut for high pressure turbines |
-
1989
- 1989-02-25 DE DE3905900A patent/DE3905900A1/de not_active Withdrawn
-
1990
- 1990-01-10 DE DE9090100410T patent/DE59001182D1/de not_active Expired - Fee Related
- 1990-01-10 EP EP90100410A patent/EP0385066B1/de not_active Expired - Lifetime
- 1990-01-30 JP JP2018128A patent/JP2612502B2/ja not_active Expired - Fee Related
- 1990-02-22 US US07/483,246 patent/US5037270A/en not_active Expired - Lifetime
- 1990-02-23 HU HU90975A patent/HU213277B/hu unknown
Also Published As
Publication number | Publication date |
---|---|
DE3905900A1 (de) | 1990-08-30 |
JP2612502B2 (ja) | 1997-05-21 |
DE59001182D1 (de) | 1993-05-19 |
JPH02233803A (ja) | 1990-09-17 |
HU900975D0 (en) | 1990-05-28 |
HU213277B (en) | 1997-04-28 |
US5037270A (en) | 1991-08-06 |
EP0385066A1 (de) | 1990-09-05 |
HUT56920A (en) | 1991-10-28 |
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