EP2014876B1 - Valve à manchon rotatif pour le contrôle du débit de vapeur d'une turbine à vapeur - Google Patents

Valve à manchon rotatif pour le contrôle du débit de vapeur d'une turbine à vapeur Download PDF

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Publication number
EP2014876B1
EP2014876B1 EP20070013509 EP07013509A EP2014876B1 EP 2014876 B1 EP2014876 B1 EP 2014876B1 EP 20070013509 EP20070013509 EP 20070013509 EP 07013509 A EP07013509 A EP 07013509A EP 2014876 B1 EP2014876 B1 EP 2014876B1
Authority
EP
European Patent Office
Prior art keywords
control
profile
rotary
rotary valve
fixed ring
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.)
Not-in-force
Application number
EP20070013509
Other languages
German (de)
English (en)
Other versions
EP2014876A1 (fr
Inventor
Richard Geist
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
Priority to EP20070013509 priority Critical patent/EP2014876B1/fr
Application filed by Siemens AG filed Critical Siemens AG
Priority to ES07013509T priority patent/ES2388747T3/es
Priority to PL07013509T priority patent/PL2014876T3/pl
Priority to EP08774901A priority patent/EP2162597A1/fr
Priority to PCT/EP2008/058883 priority patent/WO2009007383A1/fr
Priority to US12/668,072 priority patent/US8408248B2/en
Priority to BRPI0814044 priority patent/BRPI0814044A2/pt
Publication of EP2014876A1 publication Critical patent/EP2014876A1/fr
Application granted granted Critical
Publication of EP2014876B1 publication Critical patent/EP2014876B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/18—Final actuators arranged in stator parts varying effective number of nozzles or guide conduits, e.g. sequentially operable valves for steam turbines
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86718—Dividing into parallel flow paths with recombining
    • Y10T137/86743—Rotary

Definitions

  • the invention relates to a rotary valve for controlling the steam flow rate in a steam turbine having the features of the preamble of claim 1.
  • a generic rotary valve for a steam turbine is from the DE 19 620 949 A1 known.
  • the well-known rotary valve achieved only at full opening the best efficiency for the steam turbine, since in this position, the control slots are flowed through optimally. If the rotary valve is moved in the closing direction by the profile heads are pushed in the rotary ring in front of the control slots in the fixed ring, it comes in the partially closed state of the rotary valve at the edges of the profile heads and the profile ends to strong turbulence. Due to such turbulence, the efficiency of the steam turbine at part load is significantly worse.
  • document SU 802 562 A1 discloses a rotary valve with a fixed ring with blades and with a rotary ring which has control slots with different widths between profiles.
  • document DE 196 20 949 A1 shows a radial rotary valve for controlling the steam flow rate in a steam turbine, wherein a rotary ring is arranged radially outside a fixed ring rotatably.
  • document DE 42 38 550 A1 discloses an exhaust gas turbocharger for an internal combustion engine, wherein exhaust gas impinges on an impeller along a partially diagonal flow direction, wherein a fixed guide grate part and a rotatable guide grate part allow changing a size of flow channels.
  • document BE 501 076 A discloses an inlet device for introducing hot gas into a turbine, in particular into a turbocharger.
  • the incoming gas is guided by guide plates and guide plates radially inwards.
  • the invention has for its object to make the generic rotary valve so that the efficiency of the steam turbine is improved in the partial load range.
  • the profile heads of the rotary ring can share or cover both partial slots of the control slot.
  • the profile heads of the rotary ring at half the opening of the rotary valve in each case close one of the sub-slots, while the other sub-slot is open.
  • Half of the partial slots is therefore open and can be flowed through optimally and undisturbed. In this way, a high efficiency is achieved even at half load and the reduction in efficiency at the other part loads less influenced.
  • the steam turbine includes a turbine housing 1, in which a turbine rotor 2 rotates.
  • the turbine rotor 2 is equipped with blades 3. Between the blades 3 are fixed vanes 4, which are suspended on a guide blade carrier 5 connected to the turbine housing 1.
  • a rotary valve 6 designed as an axial rotary valve is arranged through the steam turbine for controlling the steam flow rate ( Fig. 2 ).
  • the design of the rotary valve described below can also be applied to a radial rotary valve with a corresponding arrangement within the steam turbine, as in Fig. 1 is shown.
  • the rotary valve 6 has a fixed ring 7 and a rotary ring 8.
  • the fixed ring 7 is fixedly connected to the guide vane 5.
  • the rotary ring 8 is arranged concentrically on the fixed ring 7 rotatably.
  • a servomotor 9 Der To adjust the in Fig. 1 shown radial rotary ring serving servo motor 9 engages via a connecting spindle 10 and an articulation lever 11 to the rotary ring 8. About the stroke of the servo motor 9, a rotation of the rotary ring 8 is effected.
  • the rotary valve 6 is provided with control profiles 12, between which control slots 13 are formed.
  • control slots 13 are coaxial with the flow channel of the steam turbine and are in the Fig. 3 shown as fully open.
  • the control profiles 12 are cut and each have a profile head 12.1 and a profile end 12.2.
  • the profile heads 12.1 are in the rotary ring 8 and the profile ends 12.2 are arranged in the fixed ring 7.
  • the profile heads 12.1 and the profile ends 12.2 positively against each other and form by their aerodynamically optimized shape only a relatively low resistance to the direction of arrow the blades 3 of the turbine rotor 2 incoming steam.
  • the control profiles 12 and the control slots 13 are coordinated so that in the contact plane between the rotary ring 8 and 7 fixed ring the width of the control profiles 12th is equal to the width of the control slots 13.
  • aerodynamically shaped blades 14 are arranged between the profile ends 12.2 of the control profiles 12 within the fixed ring 7 aerodynamically shaped blades 14 are arranged.
  • the blades 14 divide the control slots 13 between each two profile ends 12.2 in two partial slots 13.1, 13.2.
  • the blades 14 are preferably arranged centrally within the control slot 13, so that in each case two equal-width partial slots 13.1, 13.2 are formed.
  • the blades 14 can also be arranged outside the center of the control slot 13, if the desired partial load point is not 50%.
  • the meaning of the part slots formed by the blades 14 13.1, 13.2 is from the Fig. 5 in conjunction with the 3 and 4 clear.
  • the rotary ring 8 is rotated so far relative to the fixed ring 7, that the profile heads 12.1 are positively on the profile ends 12.2 and the control profiles 12 are released.
  • the control slots 13 can be flowed through optimally and undisturbed by the steam.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)

Claims (4)

  1. Valve à manchon rotatif pour le contrôle du débit de vapeur dans une turbine à vapeur, avec un anneau fixe (7) immobile et un anneau rotatif (8) disposé concentriquement sur celui-ci de manière à être mobile en rotation, dont la position angulaire peut être modifiée par un servomoteur (9), la valve à manchon rotatif (6) étant pourvue de profils de distribution (12) entre lesquels sont formées des lumières de distribution (13), et les profils de distribution (12) comprenant chacun une tête de profil (12.1) et une extrémité de profil (12.2), les têtes de profil (12.1) étant placées dans l'anneau rotatif (8) et les extrémités de profil (12.2) dans l'anneau fixe (7), caractérisée en ce que dans le plan de contact de l'anneau rotatif (8) et de l'anneau fixe (7), la largeur de chaque lumière de distribution (13) entre deux têtes de profils (12.1) est égale à la largeur de chaque tête de profil (12.1) et la largeur de la tête de profil (12.1) est égale à la largeur de l'extrémité de profil (12.2) respective,
    une aube (14) étant disposée dans l'anneau fixe (7) entre chaque extrémité de profil (12.2), qui divise chaque lumière de distribution (13) entre deux extrémités de profil (12.2) de l'anneau fixe (7) en deux lumières partielles (13.1, 13.2).
  2. Valve à manchon rotatif selon la revendication 1,
    caractérisée en ce que
    les aubes (14) sont disposées au centre à l'intérieur des lumières de distribution (13).
  3. Valve à manchon rotatif selon la revendication 2,
    caractérisée en ce que
    les aubes (14) disposées au centre forment des lumières partielles (13.1, 13.2) de même taille des lumières de distribution (13).
  4. Valve à manchon rotatif selon la revendication 1,
    caractérisée en ce que
    les aubes (14) sont disposées de manière déplaçable hors du centre des lumières de distribution (13).
EP20070013509 2007-07-10 2007-07-10 Valve à manchon rotatif pour le contrôle du débit de vapeur d'une turbine à vapeur Not-in-force EP2014876B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ES07013509T ES2388747T3 (es) 2007-07-10 2007-07-10 Distribuidor giratorio para el control del caudal de vapor en una turbina de vapor
PL07013509T PL2014876T3 (pl) 2007-07-10 2007-07-10 Suwak obrotowy do sterowania przepływem pary w turbinie parowej
EP20070013509 EP2014876B1 (fr) 2007-07-10 2007-07-10 Valve à manchon rotatif pour le contrôle du débit de vapeur d'une turbine à vapeur
PCT/EP2008/058883 WO2009007383A1 (fr) 2007-07-10 2008-07-09 Tiroir rotatif destiné à commander le débit de vapeur dans une turbine à vapeur
EP08774901A EP2162597A1 (fr) 2007-07-10 2008-07-09 Tiroir rotatif destiné à commander le débit de vapeur dans une turbine à vapeur
US12/668,072 US8408248B2 (en) 2007-07-10 2008-07-09 Rotary valve for the control of steam throughput in a steam turbine
BRPI0814044 BRPI0814044A2 (pt) 2007-07-10 2008-07-09 Válvula rotativa para controlar o fluxo de vapor em uma turbina a vapor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20070013509 EP2014876B1 (fr) 2007-07-10 2007-07-10 Valve à manchon rotatif pour le contrôle du débit de vapeur d'une turbine à vapeur

Publications (2)

Publication Number Publication Date
EP2014876A1 EP2014876A1 (fr) 2009-01-14
EP2014876B1 true EP2014876B1 (fr) 2012-06-06

Family

ID=38951455

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20070013509 Not-in-force EP2014876B1 (fr) 2007-07-10 2007-07-10 Valve à manchon rotatif pour le contrôle du débit de vapeur d'une turbine à vapeur
EP08774901A Withdrawn EP2162597A1 (fr) 2007-07-10 2008-07-09 Tiroir rotatif destiné à commander le débit de vapeur dans une turbine à vapeur

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08774901A Withdrawn EP2162597A1 (fr) 2007-07-10 2008-07-09 Tiroir rotatif destiné à commander le débit de vapeur dans une turbine à vapeur

Country Status (6)

Country Link
US (1) US8408248B2 (fr)
EP (2) EP2014876B1 (fr)
BR (1) BRPI0814044A2 (fr)
ES (1) ES2388747T3 (fr)
PL (1) PL2014876T3 (fr)
WO (1) WO2009007383A1 (fr)

Families Citing this family (10)

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DE102010042412A1 (de) * 2010-10-13 2012-04-19 Robert Bosch Gmbh Dampfturbine
CN102352782A (zh) * 2011-11-02 2012-02-15 哈尔滨汽轮机厂有限责任公司 一种功率为300mw抽汽汽轮机用的旋转隔板
US9011082B2 (en) 2011-12-22 2015-04-21 United Technologies Corporation Gas turbine engine duct blocker with rotatable vane segments
US20140105720A1 (en) * 2012-10-11 2014-04-17 Krishna Kumar Bindingnavale Ranga Method and a system for adjusting nozzle area in steam turbines
DE102014201502A1 (de) 2014-01-28 2015-07-30 Siemens Aktiengesellschaft Dampfturbine
DE102014225608A1 (de) 2014-12-11 2016-06-16 Siemens Aktiengesellschaft Vorrichtung und Verfahren zur Regelung eines Dampfmassenstroms bei einer Dampfturbine
US9803557B2 (en) * 2015-01-20 2017-10-31 United Technologies Corporation Gas turbine engine and blocker door assembly
KR101625794B1 (ko) * 2015-04-06 2016-05-30 두산중공업 주식회사 터빈용 노즐박스
US10030544B2 (en) * 2015-10-06 2018-07-24 Nuovo Pignone S.R.L. Extracting steam from a turbine
CN111350557A (zh) * 2020-03-26 2020-06-30 中国船舶重工集团公司第七0三研究所 一种双抽汽轮机组旋转隔板

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BE501076A (fr)
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US707727A (en) * 1901-05-10 1902-08-26 Richard Schulz Steam-turbine.
FR362019A (fr) 1905-12-22 1907-02-09 Desire Bonnet Marie-Julie-Leonie Ier Distributeur à aubages mobiles pour turbines
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GB191301187A (en) 1912-03-19 1913-06-19 George Westinghouse Improvements in and relating to Fluid Pressure Turbines.
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SU802562A1 (ru) 1979-03-30 1981-02-07 Харьковский Филиал Центральногоконструкторского Бюро Главэнерго-Pemohta Министерства Энергети-Ческой Промышленности Cccp Регулируемый сопловой аппаратпАРОВОй ТуРбиНы
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Also Published As

Publication number Publication date
PL2014876T3 (pl) 2012-11-30
EP2014876A1 (fr) 2009-01-14
ES2388747T3 (es) 2012-10-18
WO2009007383A1 (fr) 2009-01-15
BRPI0814044A2 (pt) 2015-02-10
US8408248B2 (en) 2013-04-02
EP2162597A1 (fr) 2010-03-17
US20100189550A1 (en) 2010-07-29

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