CN104508243B - 低压涡轮机 - Google Patents

低压涡轮机 Download PDF

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Publication number
CN104508243B
CN104508243B CN201380039726.XA CN201380039726A CN104508243B CN 104508243 B CN104508243 B CN 104508243B CN 201380039726 A CN201380039726 A CN 201380039726A CN 104508243 B CN104508243 B CN 104508243B
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lower pressure
waste vapour
pressure subsidiary
turbine
class
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Expired - Fee Related
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CN104508243A (zh
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帕特里克·比松
塞巴斯蒂安·沃斯
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Siemens AG
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Siemens AG
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    • 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

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  • 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)
  • Control Of Turbines (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

本发明涉及一种双流的低压子涡轮机(1)，其中将第一流(2)的和第二流(3)的废汽转向到外壳体(9)之内的共同的方向上进而实现轴向的流出。

Description

低压涡轮机
技术领域
本发明涉及一种低压涡轮机，所述低压涡轮机包括第一流和第二流以及转子和围绕转子设置的内壳体和围绕内壳体设置的外壳体。
此外，本发明涉及一种用于运行低压子涡轮机的方法，其中低压子涡轮机双流式地构成。
背景技术
蒸汽轮机通常划分成子涡轮机。因此，例如用在区域能量供给中的蒸汽轮机划分成高压子涡轮机、中压子涡轮机和低压子涡轮机。这些所述各个子涡轮机中的每个子涡轮机分别安置在各个壳体中。此外，已知下述结构方式，在所述结构方式中，高压部分和中压部分安置在共同的壳体中。同样已知下述结构方式，在所述结构方式中，中压部分和低压部分设置在共同的壳体中。各个的子涡轮机依次的轴向的布置需要相对多的结构空间。
因为出于热力学的原因，蒸汽的压力和温度从高压子涡轮机直至低压子涡轮机减小进而体积大幅度增大，所以在有些情况下，使用多个子涡轮机。此外，低压子涡轮机通常双流式地构成。这表示，流入的蒸汽不仅沿一个方向、并且轴向地沿相反的方向流出。低压子涡轮机构成为，使得将一个流中的废汽和第二流中的废汽侧向地引出。这也以术语单侧排气(SingleSideExhaust)或双侧排气(DoubleSideExhaust)已知。另一个实施方式提出，将废汽向下引出(所谓的向下排气(DownExhaust))。通常，这一方面引起增大的空间需求，因为这样构成的低压子涡轮机必须非常宽地或非常高地构造。尤其地，在单侧排气布置时，管路引导装置聚集在一侧上进而引起空间问题。值得期望的是，具有窄的机器厂房，在所述机器厂房中能够设置子涡轮机。此外，值得期望的是，能够使用良好结构化的管路引导装置。
发明内容
本发明的目的是，提出一种需要较小的空间需求的低压子涡轮机。
所述目的通过根据权利要求1所述的低压子涡轮机来实现。
有利的改进方案在从属权利要求中提出。
本发明基于下述方面：侧向地或向下地对废汽进行废汽引导引起相当大的空间需求，所述空间需求能够被消除，其方式在于，引导废汽，使得废汽轴向地流出。对此，根据本发明提出，外壳体构成为，使得第二流的废汽腔构成为，使得废汽转向到与第一流的废汽相同的方向。这表示：第二流的废汽转向到第一流的废汽的方向。
有利地，所述外壳体具有引回蒸汽腔以用于将废汽引回至所述第二流的废汽腔。
因此，有利地，在内壳体和外壳体之间构成环形腔，第二流的废汽流动穿过所述环形腔并且与第一流的废汽在出口侧混合。
替选的实施方式是内壳体外壁的箱形的结构方式，使得内壳体能够在如此出现的腔中安放在基座上。
因此，根据本发明提出，构成用于双流式的低压子涡轮机的新的外壳体，借助所述低压子涡轮机，轴向的流出是可能的。由此，能够减少机器厂房成本。此外，由此，基本发电厂的协调是可能的。因此，显著的成本节约是可能的。
附图说明
本发明根据实施例来详细阐述。
附图1示出：
附图1示出低压子涡轮机的示意横截面图。
具体实施方式
在附图1中示出低压子涡轮机1，所述低压子涡轮机双流式地构成。这表示：低压子涡轮机1具有第一流2和第二流3。经由入流接管4，新鲜废汽流动到低压子涡轮机1中。在围绕旋转轴线5可转动地安装的转子6和围绕转子6设置的内壳体7之间构成有流动路径8。
围绕内壳体7设置有外壳体9。转子6构成为具有各个转子叶片10。出于概览性，仅一个转子叶片设有附图标记10。在各个转子叶片级之间设置有在内壳体7上设置的导向叶片11。出于概览性，仅一个导向叶片设有附图标记11。
新鲜废汽经由入流接管4流入并且在第一流2中在绘图平面中观察向右膨胀并且在第二流3中在绘图平面中观察向左膨胀。废汽在流动路径8中膨胀并且在此冷却。在最后的转子叶片和导向叶片10、11下游，第二流3中的废汽12通过内壳体7转向。外壳体9对此具有转向元件13，所述转向元件又使废汽沿轴向方向朝向第一流2转向。在外壳体9和内壳体7之间构成有环形腔14，第二流3的废汽12流动穿过所述环形腔。在混合区15中，第一流2的废汽16与第二流的废汽12混合。在此，要注意的是，在混合区15中，第一流2的废汽16的速度基本上等于第二流3的废汽12的速度。
随后，由第一流2的废汽16和第二流3的废汽12混合成的废汽流动到废汽腔17中并且在所述废汽腔17下游流向没有详细示出的冷凝器。在废汽腔17中设置有用于轴承18的基座，在所述基座上安装有转子6。轴承18的位置能够设置在废汽腔中或者在替选的实施方式中作为单独的封装的基座位于废汽腔之外。
低压子涡轮机1双流式地构成并且第一流2中的废汽被转向到第二流3的废汽的方向。第一流2中的废汽的方向和第二流3中的废汽的方向基本上平行于旋转轴线5定向。

Claims (4)

1.一种低压子涡轮机(1)，所述低压子涡轮机包括第一流(2)和第二流(3)以及围绕旋转轴线(5)能转动地安装的转子(6)和围绕所述转子(6)设置的内壳体(7)和围绕所述内壳体(7)设置的外壳体(9)，
其中所述低压子涡轮机(1)构成为，使得所述第一流(2)中的在运行中流过所述低压子涡轮机的废汽基本上沿与所述第二流(3)中的废汽相同的方向流动，
其中所述低压子涡轮机(1)双流式地构成，并且所述第二流(3)中的废汽转向到所述第一流(2)的废汽的方向，
其特征在于，
所述第一流(2)中的废汽的方向和所述第二流(3)中的废汽的方向基本上平行于所述旋转轴线(5)定向。
2.根据权利要求1所述的低压子涡轮机(1)，
所述低压子涡轮机具有环形腔(14)，所述环形腔设置在所述内壳体(7)和所述外壳体(9)之间。
3.根据权利要求1或2所述的低压子涡轮机(1)，
其中在所述外壳体(9)中进行转向。
4.根据权利要求1或2所述的低压子涡轮机(1)，
其中所述第一流(2)的废汽和所述第二流(3)的废汽在冷凝器中冷凝。
CN201380039726.XA 2012-07-27 2013-07-23 低压涡轮机 Expired - Fee Related CN104508243B (zh)

Applications Claiming Priority (3)

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EP12178221.3 2012-07-27
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

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CN104508243B true CN104508243B (zh) 2016-05-11

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

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* 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

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* 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
US3594095A (en) * 1968-12-03 1971-07-20 Siemens Ag Casing for low-pressure stages of steam turbines of completely welded multishell construction
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
JPH0350882B2 (zh) * 1984-06-15 1991-08-05 Westinghouse Electric Corp
CN102216569A (zh) * 2008-11-13 2011-10-12 西门子公司 用于流体机械的内壳体
CN102472110A (zh) * 2009-08-13 2012-05-23 西门子公司 具有蒸汽排放口的涡轮机

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US2394125A (en) * 1943-11-01 1946-02-05 Gen Electric Tandem compound elastic fluid turbine arrangement
CH564680A5 (zh) * 1973-10-16 1975-07-31 Bbc Brown Boveri & Cie
JPS542B2 (zh) * 1975-02-26 1979-01-05
US4102598A (en) * 1975-11-11 1978-07-25 Westinghouse Electric Corp. Single case low pressure turbine
JPS5846807U (ja) * 1981-09-25 1983-03-29 株式会社東芝 蒸気タ−ビンケ−シング
DE4422700A1 (de) * 1994-06-29 1996-01-04 Abb Management Ag Diffusor für Turbomaschine

Patent Citations (6)

* 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
US3594095A (en) * 1968-12-03 1971-07-20 Siemens Ag Casing for low-pressure stages of steam turbines of completely welded multishell construction
JPH0350882B2 (zh) * 1984-06-15 1991-08-05 Westinghouse Electric Corp
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
CN102216569A (zh) * 2008-11-13 2011-10-12 西门子公司 用于流体机械的内壳体
CN102472110A (zh) * 2009-08-13 2012-05-23 西门子公司 具有蒸汽排放口的涡轮机

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EP2690253A1 (de) 2014-01-29
PL2877699T3 (pl) 2017-06-30
WO2014016272A1 (de) 2014-01-30
JP2015523496A (ja) 2015-08-13
IN2014DN10803A (zh) 2015-09-04
EP2877699A1 (de) 2015-06-03
JP6005861B2 (ja) 2016-10-12
RU2015106499A (ru) 2016-09-20
US20150167468A1 (en) 2015-06-18
ES2619602T3 (es) 2017-06-26
EP2877699B1 (de) 2016-12-14
KR20150036154A (ko) 2015-04-07
BR112015001665A2 (pt) 2017-07-04
CN104508243A (zh) 2015-04-08

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