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
  • F01D25/265—Vertically split casings; Clamping arrangements therefor
• • 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
• • 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
  • F01D25/243—Flange connections; Bolting arrangements
• • 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
  • 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
  • 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
  • F05D2220/00—Application
  • F05D2220/70—Application in combination with
  • F05D2220/72—Application in combination with a steam turbine
• • 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
  • F05D2240/10—Stators
  • F05D2240/14—Casings or housings protecting or supporting assemblies within

Definitions

• Turbomachine wherein the housing comprises a first part and a second part.
• a steam turbine conventionally includes a rotatably mounted rotor and a housing disposed about the rotor. Between the rotor and the inner housing, a flow channel is formed.
• the housing in a steam turbine must be able to fulfill several functions.
• the guide vanes are arranged in the flow channel on the housing and, secondly, the inner housing must withstand the pressure and the temperatures of the flow medium for all load and special operating cases.
• nickel-based alloys are suitable, since they can be used at high temperatures. withstand.
• the use of such a nickel-based alloy is associated with new challenges.
• the cost of nickel-based alloys is comparatively high and also the manufacturability of nickel-based alloys, eg by limited casting possibility be ⁇ limits.
• the use of nickel-based materials must be minimized.
• the nickel-based materials are poor heat conductors.
• the temperature gradients over the wall thickness are so rigid that thermal stresses are comparatively high.
• Steam turbines which are designed for high pressures and high steam temperatures, usually have an inner housing and an outer housing.
• the outer casing is usually
• Outer housing is designed as a pot housing.
• Steam turbines have an inner housing, which consists of an upper part and a lower part.
• the distance of the horizontal parting line to the center of the steam turbine is defined by the required cross-section, which is used for the
• the dimensioning of the parting screw is done via the cross-sectional area in the parting line.
• the invention begins, whose task is to provide a housing in which smaller dimensioned parting screws can be used.
• Flow of the inflow channel may be that of
• the part-joint screws can be arranged closer to the center of the turbine, thus reducing the size of the part-joint screw
• the first part and / or the second part has
• Figure 1 is a sectional view through a
• the steam turbine 1 shown in Figure 1 is a
• the steam turbine 1 comprises an outer housing 2 and an inner housing 3.
• the inner housing 3 comprises a first part 3a and a second part 3b.
• the first part 3a and the second part 3b is formed via a vertical parting line 5.
• the first part 3a and the second part 3b will not talk about
• the vertical parting line 5 refers to a horizontal line 6, which corresponds to the natural horizontal in operation.
• the vertical parting line 5 does not have to be rotated exactly 90 ° with respect to the horizontal line 6. Rather, the vertical parting line in an angular range of -10 ° to + 10 ° relative to the theoretically exact vertical line, which is rotated 90 ° relative to the horizontal line 6, may be formed.
• the first part 3a and the second part 3b each have an inflow opening 7, via which a steam flows in operation into a flow channel, not shown.
• Outer housing 2 has a horizontal parting line 8. Therefore, the outer case 2 has an upper part 2a and a lower part 2b.
• the steam turbine 1 can be used in the high pressure range or in the medium pressure range.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Turbine Rotor Nozzle Sealing (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=42167271

Family Applications (1)

Country Status (4)

Citations (5)

Family Cites Families (5)

• 2009
  • 2009-12-08 EP EP09015210A patent/EP2333253A1/de not_active Withdrawn
• 2010
  • 2010-12-07 PL PL10790396.5T patent/PL2510195T3/pl unknown
  • 2010-12-07 CN CN2010800555397A patent/CN102648335A/zh active Pending
  • 2010-12-07 WO PCT/EP2010/069010 patent/WO2011069982A1/de active Application Filing
  • 2010-12-07 EP EP10790396.5A patent/EP2510195B1/de not_active Not-in-force

Patent Citations (5)

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