EP2690253A1 - Niederdruck-Turbine - Google Patents

Niederdruck-Turbine Download PDF

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Publication number
EP2690253A1
EP2690253A1 EP12178221.3A EP12178221A EP2690253A1 EP 2690253 A1 EP2690253 A1 EP 2690253A1 EP 12178221 A EP12178221 A EP 12178221A EP 2690253 A1 EP2690253 A1 EP 2690253A1
Authority
EP
European Patent Office
Prior art keywords
low
pressure turbine
flood
exhaust steam
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.)
Withdrawn
Application number
EP12178221.3A
Other languages
German (de)
English (en)
French (fr)
Inventor
Patrick Bison
Sebastian Voss
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.)
Siemens AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Priority to EP12178221.3A priority Critical patent/EP2690253A1/de
Priority to PCT/EP2013/065466 priority patent/WO2014016272A1/de
Priority to EP13745005.2A priority patent/EP2877699B1/de
Priority to IN10803DEN2014 priority patent/IN2014DN10803A/en
Priority to CN201380039726.XA priority patent/CN104508243B/zh
Priority to ES13745005.2T priority patent/ES2619602T3/es
Priority to RU2015106499A priority patent/RU2015106499A/ru
Priority to JP2015523522A priority patent/JP6005861B2/ja
Priority to US14/414,112 priority patent/US20150167468A1/en
Priority to BR112015001665A priority patent/BR112015001665A2/pt
Priority to PL13745005T priority patent/PL2877699T3/pl
Priority to KR20157001708A priority patent/KR20150036154A/ko
Publication of EP2690253A1 publication Critical patent/EP2690253A1/de
Withdrawn legal-status Critical Current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
    • F01D3/00—Machines or engines with axial-thrust balancing effected by working-fluid
    • F01D3/02—Machines or engines with axial-thrust balancing effected by working-fluid characterised by having one fluid flow in one axial direction and another fluid flow in the opposite direction
    • 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
    • F01D25/30—Exhaust heads, chambers, or the like
    • 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
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • F01K7/30—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines using exhaust steam only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/30—Application in turbines
    • F05B2220/301—Application in turbines in steam turbines

Definitions

  • the invention relates to a low-pressure turbine comprising a first flood and a second flood and a rotor and an inner housing arranged around the rotor and an outer housing arranged around the inner housing.
  • the invention relates to a method for operating a low-pressure turbine part, wherein the low-pressure turbine part is performed double-flow.
  • Steam turbines are usually divided into sub-turbines.
  • a steam turbine that is used in the municipal energy supply, divided into a high-pressure turbine section, medium-pressure turbine section and low-pressure turbine section.
  • Each of these individual aforementioned sub-turbines is housed in a single housing each.
  • construction methods are known in which the high-pressure and medium-pressure parts are accommodated in a common housing.
  • constructions are known in which the medium-pressure part and the low-pressure part are arranged in a common housing.
  • An axial arrangement of the individual turbine parts in a row requires a comparatively large amount of installation space.
  • the low-pressure turbine sections are usually designed with two columns. This means that the incoming steam flows off both in one direction and axially in the opposite direction. Low-pressure turbine sections are designed such that the exhaust steam in the one flood and the exhaust steam in the second flood are discharged laterally. This is also known under the term Single Side Exhaust or Double Side Exhaust.
  • a further embodiment provides that the low-pressure exhaust steam is discharged downwards (so-called down exhaust). As a rule, this leads to an increased space requirement, since such executed low-pressure turbine sections must be constructed either very wide or very high.
  • the piping guide is concentrated on one side and could therefore lead to space problems. It would be desirable to have a narrow engine house in which the turbine parts can be arranged. Furthermore, it is desirable to be able to implement a well-structured piping.
  • the object of the invention is to provide a low-pressure turbine part, which requires a smaller footprint.
  • a low-pressure turbine part comprising a first flood and a second flood and a rotor and an inner housing arranged around the rotor and an outer housing arranged around the inner housing, wherein the Abdampfraum the first flood is designed such that during operation Exhaust steam flowing through the low-pressure turbine part flows from the first flood in substantially the same direction as the exhaust steam from the second flood.
  • the object is achieved by a method for operating a low-pressure turbine section, wherein the low-pressure turbine section is executed double-flooded and the exhaust steam is deflected from the first flood in the direction of the exhaust steam of the second flood.
  • the invention is based on the aspect that a Abdampe arrangement the low-pressure exhaust steam leads laterally or down to a huge amount of space, which are thereby eliminated can that the low-pressure exhaust steam is guided so that it is flowed axially.
  • the invention proposes to form the outer housing such that the Abdampfraum the second flood is designed such that the steam is deflected in the same direction as the exhaust steam of the first flood. This means that the low-pressure Abdampf the second flood is redirected in the direction of the low-pressure Abdampfes the first flood.
  • annular space is thus formed between the inner housing and the outer housing, through which a low-pressure exhaust steam of the second tide flows and mixes with the low-pressure exhaust steam of the first tide on the output side.
  • Alternative embodiment would be a box-shaped construction of the inner housing outer wall, so that the inner housing could be placed in the resulting space on the foundation.
  • a low-pressure turbine part 1 is shown, which is designed with two columns. This means that the low-pressure turbine part 1 has a first flood 2 and a second flood 3. Fresh steam flows into the low-pressure turbine section 1 via an inflow pipe 4. Between one around an axis of rotation 5 rotatably mounted rotor 6 and arranged around the rotor 6 inner housing 7, a flow path 8 is formed.
  • the rotor 6 is formed with individual blades 10. For the sake of clarity, only one blade is provided with the reference numeral 10. Between the individual blade stages arranged on the inner housing 7 vanes 11 are arranged. For reasons of clarity, only one vane is provided with the reference numeral 11.
  • the low-pressure exhaust steam 12 is deflected in the second flood 3 through the inner housing 7.
  • the outer housing 9 has for this purpose deflecting elements 13, which deflect the steam again in the axial direction to the first flood 2.
  • an annular space 14 is formed through which the low-pressure exhaust steam 12 of the second flood 3 flows.
  • the low-pressure exhaust steam 16 of the first flow 2 is mixed with the low-pressure exhaust steam of the second flow 12. It is important to ensure that in the mixing zone 15, the speeds of the low-pressure exhaust steam 16 of the first tide 2 is substantially equal to the speed of the low-pressure exhaust steam 12 of the second tide third

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Turbines (AREA)
EP12178221.3A 2012-07-27 2012-07-27 Niederdruck-Turbine Withdrawn EP2690253A1 (de)

Priority Applications (12)

Application Number Priority Date Filing Date Title
EP12178221.3A EP2690253A1 (de) 2012-07-27 2012-07-27 Niederdruck-Turbine
PCT/EP2013/065466 WO2014016272A1 (de) 2012-07-27 2013-07-23 Niederdruck-turbine
EP13745005.2A EP2877699B1 (de) 2012-07-27 2013-07-23 Niederdruck-turbine
IN10803DEN2014 IN2014DN10803A (ja) 2012-07-27 2013-07-23
CN201380039726.XA CN104508243B (zh) 2012-07-27 2013-07-23 低压涡轮机
ES13745005.2T ES2619602T3 (es) 2012-07-27 2013-07-23 Turbina de baja presión
RU2015106499A RU2015106499A (ru) 2012-07-27 2013-07-23 Турбина низкого давления
JP2015523522A JP6005861B2 (ja) 2012-07-27 2013-07-23 低圧タービン
US14/414,112 US20150167468A1 (en) 2012-07-27 2013-07-23 Low-pressure turbine
BR112015001665A BR112015001665A2 (pt) 2012-07-27 2013-07-23 turbina parcial de baixa pressão
PL13745005T PL2877699T3 (pl) 2012-07-27 2013-07-23 Turbina niskociśnieniowa
KR20157001708A KR20150036154A (ko) 2012-07-27 2013-07-23 저압 터빈

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12178221.3A EP2690253A1 (de) 2012-07-27 2012-07-27 Niederdruck-Turbine

Publications (1)

Publication Number Publication Date
EP2690253A1 true EP2690253A1 (de) 2014-01-29

Family

ID=48916005

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12178221.3A Withdrawn EP2690253A1 (de) 2012-07-27 2012-07-27 Niederdruck-Turbine
EP13745005.2A Not-in-force EP2877699B1 (de) 2012-07-27 2013-07-23 Niederdruck-turbine

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP13745005.2A Not-in-force EP2877699B1 (de) 2012-07-27 2013-07-23 Niederdruck-turbine

Country Status (11)

Country Link
US (1) US20150167468A1 (ja)
EP (2) EP2690253A1 (ja)
JP (1) JP6005861B2 (ja)
KR (1) KR20150036154A (ja)
CN (1) CN104508243B (ja)
BR (1) BR112015001665A2 (ja)
ES (1) ES2619602T3 (ja)
IN (1) IN2014DN10803A (ja)
PL (1) PL2877699T3 (ja)
RU (1) RU2015106499A (ja)
WO (1) WO2014016272A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016118296A1 (de) 2016-09-28 2018-03-29 Man Diesel & Turbo Se Dampfturbine
JP6632510B2 (ja) 2016-10-31 2020-01-22 三菱重工業株式会社 蒸気タービンの排気室、蒸気タービン排気室用のフローガイド、及び、蒸気タービン

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1405090A (en) * 1917-08-24 1922-01-31 British Westinghouse Electric Semidouble-flow steam turbine
DE1812487A1 (de) * 1968-12-03 1970-08-13 Siemens Ag Gehaeuseanordnung fuer Niederdruckteile von Dampfturbinen in vollstaendig geschweisster mehrschaliger Bauweise
US3915588A (en) * 1973-10-16 1975-10-28 Bbc Brown Boveri & Cie Two-shell axial-plane split casing structure for high-capacity low-pressure sections of a steam turbine
US4102598A (en) * 1975-11-11 1978-07-25 Westinghouse Electric Corp. Single case low pressure turbine
US4557113A (en) * 1984-06-15 1985-12-10 Westinghouse Electric Corp. Single low pressure turbine with zoned condenser

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2394125A (en) * 1943-11-01 1946-02-05 Gen Electric Tandem compound elastic fluid turbine arrangement
JPS542B2 (ja) * 1975-02-26 1979-01-05
JPS5846807U (ja) * 1981-09-25 1983-03-29 株式会社東芝 蒸気タ−ビンケ−シング
CN1038492A (zh) * 1988-06-08 1990-01-03 涡轮机制造生产联合企业“列宁格勒金属厂” 汽轮机汽缸反推力矩抵消法
DE4422700A1 (de) * 1994-06-29 1996-01-04 Abb Management Ag Diffusor für Turbomaschine
EP2187004A1 (de) * 2008-11-13 2010-05-19 Siemens Aktiengesellschaft Innengehäuse für eine Strömungsmaschine
EP2295725A1 (de) * 2009-08-13 2011-03-16 Siemens Aktiengesellschaft Ströhmungsmaschine mit Dampfentnahme

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1405090A (en) * 1917-08-24 1922-01-31 British Westinghouse Electric Semidouble-flow steam turbine
DE1812487A1 (de) * 1968-12-03 1970-08-13 Siemens Ag Gehaeuseanordnung fuer Niederdruckteile von Dampfturbinen in vollstaendig geschweisster mehrschaliger Bauweise
US3915588A (en) * 1973-10-16 1975-10-28 Bbc Brown Boveri & Cie Two-shell axial-plane split casing structure for high-capacity low-pressure sections of a steam turbine
US4102598A (en) * 1975-11-11 1978-07-25 Westinghouse Electric Corp. Single case low pressure turbine
US4557113A (en) * 1984-06-15 1985-12-10 Westinghouse Electric Corp. Single low pressure turbine with zoned condenser

Also Published As

Publication number Publication date
US20150167468A1 (en) 2015-06-18
KR20150036154A (ko) 2015-04-07
CN104508243B (zh) 2016-05-11
JP2015523496A (ja) 2015-08-13
ES2619602T3 (es) 2017-06-26
JP6005861B2 (ja) 2016-10-12
RU2015106499A (ru) 2016-09-20
IN2014DN10803A (ja) 2015-09-04
BR112015001665A2 (pt) 2017-07-04
EP2877699B1 (de) 2016-12-14
EP2877699A1 (de) 2015-06-03
PL2877699T3 (pl) 2017-06-30
WO2014016272A1 (de) 2014-01-30
CN104508243A (zh) 2015-04-08

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