WO2009007383A1 - Drehschieber zur steuerung des dampfdurchsatzes bei einer dampfturbine - Google Patents
Drehschieber zur steuerung des dampfdurchsatzes bei einer dampfturbine Download PDFInfo
- Publication number
- WO2009007383A1 WO2009007383A1 PCT/EP2008/058883 EP2008058883W WO2009007383A1 WO 2009007383 A1 WO2009007383 A1 WO 2009007383A1 EP 2008058883 W EP2008058883 W EP 2008058883W WO 2009007383 A1 WO2009007383 A1 WO 2009007383A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- control
- rotary valve
- fixed ring
- ring
- rotary
- Prior art date
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
- 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.
- Control slots more or less open or close.
- Such rotary valves are relatively simple in construction compared to the valves normally used in steam turbine construction for the control of steam extraction and also have some other advantages.
- a generic rotary valve for a steam turbine is known from DE 19 620 949 Al.
- 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
- 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 object is achieved in a generic rotary valve according to the invention by the characterizing features of claim 1.
- Advantageous embodiments of the invention are the subject of the dependent claims.
- 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.
- Fig. 1 shows the cross section through a steam turbine with a
- FIG. 2 shows the longitudinal section through a portion of a
- FIG. 3 to 5 show the partial development of the rotary valve, in the open position of the rotary valve (FIG. 3), in the closed position of the rotary valve (FIG. 4) and in the half-open position of the rotary valve (FIG. 5).
- 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 to control the steam flow rate through the steam turbine (FIG. 2).
- Rotary valve can also be applied to a radial rotary valve with a corresponding arrangement within the steam turbine, as shown in Fig. 1.
- 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.
- Radial rotary ring serving servo motor 9 engages via a Anlenkspindel 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.
- the control slots 13 are coaxial with the flow channel of the steam turbine and are shown in FIG. 3 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 lie positively against one another and, due to their aerodynamically optimized shape, form only a relatively small resistance to the steam flowing in the direction of the arrow towards the rotor blades 3 of the turbine rotor 2.
- the control profiles 12 and the control slots 13 are coordinated so that in the plane of contact 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%.
- Partial slots 13.1, 13.2 is clear from Fig. 5 in conjunction with Figs. 3 and 4.
- the rotary ring 8 is rotated so far relative to the fixed ring 7 that the profile heads 12. 1 lie in a form-fitting manner on the profile ends 12. 2 and the control profiles 12 are released.
- 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)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
EP08774901A EP2162597A1 (de) | 2007-07-10 | 2008-07-09 | Drehschieber zur steuerung des dampfdurchsatzes bei einer dampfturbine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07013509.0 | 2007-07-10 | ||
EP20070013509 EP2014876B1 (de) | 2007-07-10 | 2007-07-10 | Drehschieber zur Steuerung des Dampfdurchsatzes bei einer Dampfturbine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009007383A1 true WO2009007383A1 (de) | 2009-01-15 |
Family
ID=38951455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/058883 WO2009007383A1 (de) | 2007-07-10 | 2008-07-09 | Drehschieber zur steuerung des dampfdurchsatzes bei einer dampfturbine |
Country Status (6)
Country | Link |
---|---|
US (1) | US8408248B2 (de) |
EP (2) | EP2014876B1 (de) |
BR (1) | BRPI0814044A2 (de) |
ES (1) | ES2388747T3 (de) |
PL (1) | PL2014876T3 (de) |
WO (1) | WO2009007383A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014201502A1 (de) | 2014-01-28 | 2015-07-30 | Siemens Aktiengesellschaft | Dampfturbine |
WO2016091410A1 (de) | 2014-12-11 | 2016-06-16 | Siemens Aktiengesellschaft | Vorrichtung und verfahren zur regelung eines dampfmassenstroms bei einer dampfturbine |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE75786C1 (de) | ||||
BE501076A (de) | ||||
FR362019A (fr) | 1905-12-22 | 1907-02-09 | Desire Bonnet Marie-Julie-Leonie Ier | Distributeur à aubages mobiles pour turbines |
GB191301187A (en) | 1912-03-19 | 1913-06-19 | George Westinghouse | Improvements in and relating to Fluid Pressure Turbines. |
SU802562A1 (ru) | 1979-03-30 | 1981-02-07 | Харьковский Филиал Центральногоконструкторского Бюро Главэнерго-Pemohta Министерства Энергети-Ческой Промышленности Cccp | Регулируемый сопловой аппаратпАРОВОй ТуРбиНы |
DE4238550A1 (de) | 1992-11-14 | 1994-05-19 | Daimler Benz Ag | Abgasturbolader für eine Brennkraftmaschine |
WO1995002448A1 (en) | 1993-07-14 | 1995-01-26 | Sinvent A/S | Apparatus for mixing the components of a fluid flow |
DE19620949A1 (de) | 1996-05-24 | 1997-11-27 | Abb Patent Gmbh | Radialdrehschieber zur Steuerung des Dampfdurchsatzes bei einer Dampfturbine |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US707727A (en) * | 1901-05-10 | 1902-08-26 | Richard Schulz | Steam-turbine. |
US867611A (en) * | 1906-03-06 | 1907-10-08 | Richard Schulz | Steam-turbine. |
US2666618A (en) * | 1949-07-29 | 1954-01-19 | Bendix Aviat Corp | Rotary throttle blade design |
US4526199A (en) * | 1983-11-14 | 1985-07-02 | Northern Research & Engineering Corp. | Valve for throttling fluid |
US5157779A (en) | 1990-06-07 | 1992-10-20 | Sun Microsystems, Inc. | User extensible testing system |
DE4214775A1 (de) * | 1992-05-04 | 1993-11-11 | Abb Patent Gmbh | Dampfturbine mit einem Drehschieber |
US7097421B2 (en) * | 2004-10-08 | 2006-08-29 | United Technologies Corporation | Vernier duct blocker |
GB0608404D0 (en) | 2006-04-28 | 2006-06-07 | Ibm | Method and system for recording interactions of distributed users |
-
2007
- 2007-07-10 EP EP20070013509 patent/EP2014876B1/de not_active Not-in-force
- 2007-07-10 PL PL07013509T patent/PL2014876T3/pl unknown
- 2007-07-10 ES ES07013509T patent/ES2388747T3/es active Active
-
2008
- 2008-07-09 US US12/668,072 patent/US8408248B2/en not_active Expired - Fee Related
- 2008-07-09 EP EP08774901A patent/EP2162597A1/de not_active Withdrawn
- 2008-07-09 WO PCT/EP2008/058883 patent/WO2009007383A1/de active Application Filing
- 2008-07-09 BR BRPI0814044 patent/BRPI0814044A2/pt not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE75786C1 (de) | ||||
BE501076A (de) | ||||
FR362019A (fr) | 1905-12-22 | 1907-02-09 | Desire Bonnet Marie-Julie-Leonie Ier | Distributeur à aubages mobiles pour turbines |
GB191301187A (en) | 1912-03-19 | 1913-06-19 | George Westinghouse | Improvements in and relating to Fluid Pressure Turbines. |
SU802562A1 (ru) | 1979-03-30 | 1981-02-07 | Харьковский Филиал Центральногоконструкторского Бюро Главэнерго-Pemohta Министерства Энергети-Ческой Промышленности Cccp | Регулируемый сопловой аппаратпАРОВОй ТуРбиНы |
DE4238550A1 (de) | 1992-11-14 | 1994-05-19 | Daimler Benz Ag | Abgasturbolader für eine Brennkraftmaschine |
WO1995002448A1 (en) | 1993-07-14 | 1995-01-26 | Sinvent A/S | Apparatus for mixing the components of a fluid flow |
DE19620949A1 (de) | 1996-05-24 | 1997-11-27 | Abb Patent Gmbh | Radialdrehschieber zur Steuerung des Dampfdurchsatzes bei einer Dampfturbine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014201502A1 (de) | 2014-01-28 | 2015-07-30 | Siemens Aktiengesellschaft | Dampfturbine |
WO2015113661A1 (de) * | 2014-01-28 | 2015-08-06 | Siemens Aktiengesellschaft | Dampfturbine mit einer drosseleinrichtung |
WO2016091410A1 (de) | 2014-12-11 | 2016-06-16 | Siemens Aktiengesellschaft | Vorrichtung und verfahren zur regelung eines dampfmassenstroms bei einer dampfturbine |
DE102014225608A1 (de) | 2014-12-11 | 2016-06-16 | Siemens Aktiengesellschaft | Vorrichtung und Verfahren zur Regelung eines Dampfmassenstroms bei einer Dampfturbine |
Also Published As
Publication number | Publication date |
---|---|
US20100189550A1 (en) | 2010-07-29 |
EP2014876B1 (de) | 2012-06-06 |
US8408248B2 (en) | 2013-04-02 |
EP2014876A1 (de) | 2009-01-14 |
BRPI0814044A2 (pt) | 2015-02-10 |
ES2388747T3 (es) | 2012-10-18 |
PL2014876T3 (pl) | 2012-11-30 |
EP2162597A1 (de) | 2010-03-17 |
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