EP0385066B1 - Frischdampfdurchführung für Dampfturbinen in Doppelgehäusebauart - Google Patents

Frischdampfdurchführung für Dampfturbinen in Doppelgehäusebauart Download PDF

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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
Application number
EP90100410A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0385066A1 (de
Inventor
Friedhelm Bangel
Klaus Buchkremer
Dieter Förster
Achim Dipl.-Ing. Zimmermann
Dieter-Heinz Dipl.-Ing. Tremmel
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.)
MAN Gutehoffnungshutte GmbH
Original Assignee
MAN Gutehoffnungshutte GmbH
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 MAN Gutehoffnungshutte GmbH filed Critical MAN Gutehoffnungshutte GmbH
Publication of EP0385066A1 publication Critical patent/EP0385066A1/de
Application granted granted Critical
Publication of EP0385066B1 publication Critical patent/EP0385066B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

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)
EP90100410A 1989-02-25 1990-01-10 Frischdampfdurchführung für Dampfturbinen in Doppelgehäusebauart Expired - Lifetime EP0385066B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3905900 1989-02-25
DE3905900A DE3905900A1 (de) 1989-02-25 1989-02-25 Frischdampfdurchfuehrung fuer dampfturbinen in doppelgehaeusebauart

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
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
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
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

Also Published As

Publication number Publication date
HU900975D0 (en) 1990-05-28
HU213277B (en) 1997-04-28
DE3905900A1 (de) 1990-08-30
JP2612502B2 (ja) 1997-05-21
EP0385066A1 (de) 1990-09-05
JPH02233803A (ja) 1990-09-17
US5037270A (en) 1991-08-06
HUT56920A (en) 1991-10-28
DE59001182D1 (de) 1993-05-19

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