WO1998015720A1 - Systeme de turbine a vapeur - Google Patents

Systeme de turbine a vapeur Download PDF

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Publication number
WO1998015720A1
WO1998015720A1 PCT/EP1997/005493 EP9705493W WO9815720A1 WO 1998015720 A1 WO1998015720 A1 WO 1998015720A1 EP 9705493 W EP9705493 W EP 9705493W WO 9815720 A1 WO9815720 A1 WO 9815720A1
Authority
WO
WIPO (PCT)
Prior art keywords
steam turbine
condenser
preheater
turbine system
disposed
Prior art date
Application number
PCT/EP1997/005493
Other languages
English (en)
Inventor
Armin Drosdziok
Andreas FELDMÜLLER
Volker Kefer
Michael Wurm
William Blauwiekel
Dennis Ham
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1998015720A1 publication Critical patent/WO1998015720A1/fr

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
    • F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
    • F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines

Definitions

  • the invention relates to a steam turbine system having a steam turbine and a condenser connected radially to it on the downstream side.
  • a steam turbine combined with a condenser to make a steam turbine system is disposed in a machine house or turbine hall.
  • the condenser may be connected on the downstream side axially or radially to the steam turbine. In an axial configuration, the condenser is placed longitudinally of the turbine shaft, while conversely in a radial configuration it is mounted in a position oriented at right angles to the longitudinal direction of the turbine shaft.
  • the condenser In order to utilize gravity to reinforce mass transport from the turbine to the condenser in the radial mode of construction, the condenser is typically disposed below the steam turbine.
  • Such a construction of the steam turbine requires considerable structural and engineering expense, especially because of the large number of structural components.
  • the expense of assembly in setting up such a steam turbine system is especially high, particularly since the steam turbine located above the condenser requires an expensive and complicated supporting construction.
  • a steam turbine system comprising a steam turbine; and a condenser connected radially to and downstream of the steam turbine; the steam turbine and the condenser each being constructed modularly and disposed flush with the ground.
  • the invention is based on a concept that the expense for assembly of the steam turbine system can be kept especially low through the use of a high degree of prefabrication .
  • An especially high degree of prefabrication is achievable in turn by suitably modularizing the components.
  • module should be understood in this case to mean in particular a connectable, transportable and premountable component.
  • assembly expense is especially low as a result of a suitable structural concept.
  • the number of structural levels should be kept as low as possible.
  • the steam turbine may be constructed as a single module or may also include a number of modules.
  • a preheater unit being constructed as a module and disposed flush with the ground.
  • the preheater unit is disposed on a side of the steam turbine opposite the condenser.
  • the condenser constructed as a module includes a first condenser element and a second condenser element disposed above the first condenser element.
  • the preheater unit constructed as a module includes a number of preheater elements and a common support frame in which the preheater elements are disposed.
  • the turbine hall can be constructed purely for weather protection.
  • the structural height of the turbine hall can be chosen to be especially low.
  • the concept described herein permits extensive prefabrication of the components and especially of the modules . Placing the modules close together means that only especially short pipelines are needed, for instance for bled steam, supplying condensate, and/or supplying feedwater.
  • Fig. 1 is a diagrammatic, top-plan view of one exemplary embodiment of a steam turbine system according to the invention.
  • Fig. 2 is a side-elevational view of the steam turbine system of Fig. 1, as seen along a line II-II in the direction of the arrows .
  • a steam turbine system 1 which includes a steam turbine 2 with a high-pressure and medium-pressure portion 2a and a low-pressure portion 2b, to which a condenser 4 is connected radially on the downstream side.
  • a preheater unit 6 is disposed on a side of the steam turbine 2 facing the condenser 4.
  • a generator 8 located in the vicinity of the steam turbine 2 can be driven through a steam turbine shaft 7.
  • Both the high-pressure and medium-pressure portion 2a and the low-pressure portion 2b of the steam turbine 2 as well as the condenser 4 and the preheater unit 6 and the generator 8 are each constructed as a module and are moreover disposed flush with the ground.
  • the term "module” should be understood in this case to mean a connectable, transportable component that can be pre-assembled.
  • Each of the aforementioned modules is mounted on a sledlike structure or skid in a non-illustrated manner and can thus be shifted about especially easily.
  • the steam turbine system 1 is part of a non-illustrated steam power plant, having a high-pressure preheater, in the form of a module 9, which is likewise disposed flush with the ground on the side of the steam turbine 2 facing the condenser 4.
  • the steam turbine system 1 is connected to a once-through steam generator of the steam power plant in a non-illustrated manner.
  • One such once-through steam generator is described, for instance, in co-pending U.S. Patent Application Serial No. (Attorney's Docket No. 5796) entitled "Modular Boiler", filed concurrently with the instant application and having the same assignee.
  • the steam turbine 2, the condenser 4, the preheater unit 6, the generator 8 and the module 9 are disposed in a common power house or turbine hall 10.
  • the generator 8 is connected through a supply line system 11, into which a switch system 12 is incorporated, to a generator transformer 13 that is disposed outside the turbine hall 10 and serves to transform electrical voltage furnished by the generator 8 to a higher level.
  • Fig. 2 is a side view of the turbine hall 10, showing the disposition of the steam turbine 2, the condenser 4 and the preheater unit 6 flush with the floor.
  • the condenser 4 is radially connected to the steam turbine 2 on the downstream side.
  • the condenser 4, that is constructed as a module, includes a first condenser element 4a and a second condenser element 4b located above the first.
  • the preheater unit 6, that is also constructed as a module, includes a number of preheater elements 15 disposed in a common support stand or heater rig 14. Each preheater element 15 can be acted upon with bled steam A from the steam turbine 2 through a bled steam duct system 16. The pressure and temperature of the bled steam A are functions of the location, wherever it is, at which the steam turbine 2 is bled. Each preheater element 15 is constructed for a specific pressure range of the bled steam A. Placing the preheater elements 15 in the common heater rig 14 makes it possible to prefabricate the preheater unit 6 as a module. This makes the effort and expense of on-site assembly especially low. In order to even further facilitate assembly of the steam turbine system 1, the module 9 is also mounted on a sled structure or skid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

Ce système de turbine à vapeur comprend une turbine à vapeur (2) ainsi qu'un condenseur (4) relié radialement à la turbine, sur le côté aval de celle-ci. De façon à assembler à moindre coût la turbine à vapeur et le condenseur, on a construit chacun de ces éléments de manière modulaire et on les a installés à fleur de sol.
PCT/EP1997/005493 1996-10-08 1997-10-07 Systeme de turbine a vapeur WO1998015720A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US72718196A 1996-10-08 1996-10-08
US08/727,181 1996-10-08

Publications (1)

Publication Number Publication Date
WO1998015720A1 true WO1998015720A1 (fr) 1998-04-16

Family

ID=24921656

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/005493 WO1998015720A1 (fr) 1996-10-08 1997-10-07 Systeme de turbine a vapeur

Country Status (2)

Country Link
TW (1) TW355728B (fr)
WO (1) WO1998015720A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1039255A1 (fr) * 1999-03-19 2000-09-27 ABBPATENT GmbH Centrale thermique
EP1126227A1 (fr) * 2000-02-09 2001-08-22 ALSTOM POWER (Schweiz) AG Condenseur de vapeur
EP1607586A1 (fr) * 2004-05-06 2005-12-21 Siemens Aktiengesellschaft Centrale à vapeur
EP3460204A1 (fr) * 2017-09-25 2019-03-27 Siemens Aktiengesellschaft Installation de turbine à vapeur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1157557A (en) * 1966-06-06 1969-07-09 Bbc Brown Boveri & Cie Boiler Feed Water Preheater.
US4592416A (en) * 1985-04-29 1986-06-03 The Air Preheater Company, Inc. Modular tubular heat exchanger
US4866941A (en) * 1988-07-05 1989-09-19 Westinghouse Electric Corp. Single condenser arrangement for side exhaust turbine
EP0415314A1 (fr) * 1989-08-28 1991-03-06 Gec Alsthom Sa Condenseur en béton pour turbine à échappement axial et turbine munie d'un tel condenseur
EP0594499A1 (fr) * 1992-10-21 1994-04-27 Gec Alsthom Electromecanique Sa Condenseur en béton pour turbine à vapeur à échappement axial avec montage simplifié des faisceaux

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1157557A (en) * 1966-06-06 1969-07-09 Bbc Brown Boveri & Cie Boiler Feed Water Preheater.
US4592416A (en) * 1985-04-29 1986-06-03 The Air Preheater Company, Inc. Modular tubular heat exchanger
US4866941A (en) * 1988-07-05 1989-09-19 Westinghouse Electric Corp. Single condenser arrangement for side exhaust turbine
EP0415314A1 (fr) * 1989-08-28 1991-03-06 Gec Alsthom Sa Condenseur en béton pour turbine à échappement axial et turbine munie d'un tel condenseur
EP0594499A1 (fr) * 1992-10-21 1994-04-27 Gec Alsthom Electromecanique Sa Condenseur en béton pour turbine à vapeur à échappement axial avec montage simplifié des faisceaux

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1039255A1 (fr) * 1999-03-19 2000-09-27 ABBPATENT GmbH Centrale thermique
EP1126227A1 (fr) * 2000-02-09 2001-08-22 ALSTOM POWER (Schweiz) AG Condenseur de vapeur
US6360543B2 (en) 2000-02-09 2002-03-26 Alstom (Schweiz) Ag Steam condenser
EP1607586A1 (fr) * 2004-05-06 2005-12-21 Siemens Aktiengesellschaft Centrale à vapeur
EP3460204A1 (fr) * 2017-09-25 2019-03-27 Siemens Aktiengesellschaft Installation de turbine à vapeur

Also Published As

Publication number Publication date
TW355728B (en) 1999-04-11

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