CN104093937B - For the rotor of double-current method fluid machinery - Google Patents

For the rotor of double-current method fluid machinery Download PDF

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Publication number
CN104093937B
CN104093937B CN201280068164.7A CN201280068164A CN104093937B CN 104093937 B CN104093937 B CN 104093937B CN 201280068164 A CN201280068164 A CN 201280068164A CN 104093937 B CN104093937 B CN 104093937B
Authority
CN
China
Prior art keywords
rotor
rotor blade
row
blade row
section
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.)
Expired - Fee Related
Application number
CN201280068164.7A
Other languages
Chinese (zh)
Other versions
CN104093937A (en
Inventor
本杰明·库姆
诺贝特·聚尔肯
周小平
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
Publication of CN104093937A publication Critical patent/CN104093937A/en
Application granted granted Critical
Publication of CN104093937B publication Critical patent/CN104093937B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • 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
    • F01D25/04—Antivibration 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/10—Anti- vibration means
    • 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
    • F05D2250/00—Geometry
    • F05D2250/30—Arrangement of components
    • 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
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • F05D2260/961—Preventing, counteracting or reducing vibration or noise by mistuning rotor blades or stator vanes with irregular interblade spacing, airfoil shape

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention relates to a kind of rotor for double-current method fluid machinery, wherein first-class and second has multiple rotor blade rows, and wherein at least one rotor blade row is with respect to the corresponding differently design of rotor blade row of another stream.

Description

For the rotor of double-current method fluid machinery
Technical field
The present invention relates to a kind of fluid machinery for double-current method and be used in particular for turning of steam turbineSon, wherein said rotor has for first the first rotor portion's section with for of secondTwo rotor portions sections, wherein said the first rotor portion section has the first rotor blade row, the second rotorBlade row and other rotor blade row and last rotor blade row, wherein the second rotor portionsSection has the first rotor blade row, the second rotor blade row and other rotor blade row andAfter rotor blade row.
Background technology
For example steam turbine of fluid machinery consist essentially of revolvably the rotor installed and aroundThe housing that described rotor arranges. Have following danger, specific torsional frequency may cause turningThe damage of son or cause being positioned at the damage of epitrochanterian rotor blade. Therefore for fluid machineryRotor for specific running frequency window designs, in described running frequency window, do not occur reversingFrequency, is wherein known that being arranged on epitrochanterian rotor blade has impact to torsional frequency.
Summary of the invention
The object of the invention is, propose a kind of rotor for fluid machinery, described rotor hasThe lower tendency that causes torsional frequency.
This object is used in particular for steam turbine by a kind of fluid machinery for double-current methodRotor is realized, and wherein said rotor has for first the first rotor portion's section with forThe second second-rate rotor portions section, wherein said the first rotor portion section have the first rotor blade row,The second rotor blade row and other rotor blade row and last rotor blade row, Qi ZhongsuoState the second rotor portions section and there is the first rotor blade row, the second rotor blade row and other rotorBlade row and last rotor blade row, the rotor blade row of wherein said the first rotor portion sectionThe configuration of rotor blade with respect to the rotor blade row's of the second rotor portions section rotor bladeConfiguration is design differently, wherein said the first rotor portion section with phase described the second rotor portions sectionCorresponding rotor blade row's rotor blade designs substantially the samely.
The present invention is from following basic thought, in the rotor of double-current method design, first-classIn rotor blade row and the corresponding rotor blade of the associated of second arrange phase each otherDesign together. Conventionally rotor not only has the first rotor leaf in first-class but also in secondSheet row, described the first rotor blade row in first-class and the first rotor blade of described secondRow is design in the same manner. The rotor blade of the second rotor blade row in first-class and second is sameDesign in the same manner. These rotor blades row of first-class and second is with regard to they substantially the same groundThe thermodynamic variable that changes flow media is the rotor blade row who corresponds to each other.
The present invention is now from following basic thought, and corresponding rotor blade row's is identicalEmbodiment be not mandatory essential. Or rather, the present invention is from following basic thoughtSet out, differently form wittingly first-class and second. This present invention is proposed to firstConfiguration the turning with respect to the second rotor portions section of the rotor blade row's of rotor portions section rotor bladeThe configuration of blades row's rotor blade differently designs. Refer at this, what correspond to each other turnsBlades row design differently from one another, the rotor blade row that wherein remaining corresponds to each other is basicOn in the same manner design.
Other preferred improvement project provides hereinafter.
Therefore in first favourable improvement project, the last rotor leaf of the first rotor portion sectionSheet row's rotor blade is different from the last rotor blade row's of the second rotor portions section rotor leafSheet forms. Due to thermodynamic (al) reason, the length of last rotor blade row's rotor blade is notIn first-class, be only maximum and in second, be also maximum. Therefore last rotorBlade row produces maximum impact to the twisting vibration of rotor. Rotor blade row's variation is therefore rightWhole rotor produces large impact.
In a favourable improvement project, different rotor blade rows' rotor blade is about itDynamic (dynamical) characteristic is different.
In another favourable improvement project, different rotor blade row's rotor blade aboutIts elastic characteristic is different. Except dynamic (dynamical) characteristic, the elastic characteristic of rotor blade is being turned roundRotational oscillation moves when rotor is exerted an influence and also plays an important role. The dynamics of rotor blade and/Or therefore the variation of elastic characteristic causes the large impact on twisting vibration.
In another favourable improvement project, different rotor blade row's rotor blade aboutIts outside geometry is different.
Same in a favourable improvement project, different rotor blade rows' rotor blade closesDifferently design in its material. Have at the rotor blade differently designing aspect its geometryDifferent frequency spectrums, to such an extent as to arrange turning at the rotor blade differently designing aspect its geometryThe twisting vibration of son exerts an influence. The density of the material using and other physical characteristic are to turning roundRotational oscillation moves large impact.
In favourable improvement project, each rotor blade differently designs. Equally likely,Change the multiple single rotor in rotor blade row or different rotor blade rowTherefore blade, to realize the change to twisting vibration.
In another favourable improvement project, multiple rotor blade row phases of the first rotor portion sectionFor the differently design of rotor blade row of second section. Need to be by the phase according to which kind of twisting vibrationTreat or which kind of twisting vibration must be attenuated, different rotor blade rows' rotor blade canDifferently design.
Brief description of the drawings
Elaborate the present invention according to embodiment now.
Accompanying drawing illustrates the viewgraph of cross-section according to rotor of the present invention schematically.
Detailed description of the invention
Fig. 1 illustrates the viewgraph of cross-section of the rotor 2 of installing revolvably around rotation 1.Rotor 2 is characterised in that diameter 3, wherein on the surface 4 of rotor 2, is provided with rotor blade.Rotor 2 illustrated in the accompanying drawings comprises for first the first rotor portion section 5. This is first years oldRotor portions section 5 comprises the first rotor blade row 7, the second rotor blade row 8 and last rotorBlade row 9. Other rotor blade is arranged because clearly reason is not shown.
The second rotor portions section 6 comprises corresponding with first-class 14 the first rotor blade row 7 equallyThe first rotor blade row 10, the second rotor blade row 11 and last rotor blade row 12.The first rotor blade row 7 and rotor blade row 10 are that corresponding rotor blade is arranged each other. This meaningTaste, and according to prior art, these two rotor blade rows have identical configuration substantially. WithCorrespondingly, the second rotor blade row 8 and the second rotor blade row 11 are corresponding equallyRotor blade row. Same in last rotor blade row 9 and last rotor blade row 12Be this situation, that is to say, these two rotor blade rows are the rotor blades that correspond to each otherRow. Multiple rotor blades are drawn together in each rotor blade package, and described rotor blade is arranged on rotor 2Ring week on.
The configuration of last rotor blade row's 9 rotor blade turns with respect to second according to the present inventionThe configuration of the last rotor blade row's 12 of sub-portion section 6 rotor blade differently designs. CauseFor 12 rotor leaf is arranged in the configuration of the rotor blade in rotor blade row 9 with respect to rotor bladeSheet differently designs, so the whole frequency characteristic of rotor 2 is basic with respect to arranging when rotor bladeFrequency characteristic while above design is different mutually the samely.
Remaining rotor blade row, that is to say, the first rotor blade row 7 is corresponding to rotor leafSheet is arranged 10 and is designed substantially the samely.
Be in operation, live steam flows to via the portion of becoming a mandarin not being shown specifically the region 13 that becomes a mandarinIn and from that be divided into the first flow channel first the first rotor portion section 5 andThe second flow channel 15 in the second rotor portion 6 in second.
Last rotor blade row's 9 rotor blade is about its dynamics and/or elasticity spyProperty differently forms with respect to last rotor blade row's 12 rotor blade. Different to thisRotor blade row's rotor blade is differently established about its outside geometry and/or materialMeter.
The configuration of the rotor blade of arranging by rotor blade according to variation of the present invention, obtain additionalThe free degree, to change the torsional frequency in rotor 2.

Claims (8)

1. the rotor for double-current method fluid machinery (2),
Wherein said rotor (2) has for first the first rotor portion's section (5) with forThe second second-rate rotor portions section (6),
Wherein said the first rotor portion's section (5) has the first rotor blade row (7), the second rotorBlade row (8) and last rotor blade row (9) and other rotor blade row,
Wherein said the second rotor portions section (6) has the first rotor blade row (10), the second rotorBlade row (11) and last rotor blade row (12) and other rotor blade row,
The rotor blade row's (7,8,9) of wherein said first described the first rotor portion sectionThe configuration of rotor blade is with respect to the rotor blade row of the described second rotor portions section of described secondThe configuration of the rotor blade of (10,11,12) differently designs,
The rotor blade row's (7,8,9) of wherein said the first rotor portion section rotor blade is madeBecome the rotor blade row (7,8,9) for described first the first rotor portion section,
The rotor blade row's (10,11,12) of wherein said the second rotor portions section rotor blade quiltMake the rotor blade row (10,11,12) for described the second rotor portions section,
Wherein different rotor blade rows' rotor blade is different about material.
2. rotor according to claim 1 (2),
The last rotor blade row's (9) of wherein said the first rotor portion's section (5) rotor bladeArrange the rotor blade of (12) with respect to the last rotor blade of described the second rotor portions section (6)Corresponding with described the second rotor portions section of differently design, and described the first rotor portion sectionRotor blade row's rotor blade designs in the same manner.
3. rotor according to claim 1 and 2 (2),
Wherein different rotor blade rows' rotor blade is different about its dynamics.
4. rotor according to claim 1 and 2 (2),
Wherein different rotor blade rows' rotor blade is different about its elastic characteristic.
5. rotor according to claim 1 and 2 (2),
Wherein different rotor blade rows' rotor blade is different about its outside geometry.
6. rotor according to claim 1 and 2 (2),
Wherein each rotor blade differently design in its rotor blade row.
7. rotor according to claim 1 and 2 (2),
Multiple rotor blade rows of wherein said the first rotor portion's section (5) turn with respect to described secondThe differently design of rotor blade row of sub-portion section (6).
8. rotor according to claim 1 (2),
Wherein said double-current method fluid machinery is steam turbine.
CN201280068164.7A 2012-01-25 2012-11-08 For the rotor of double-current method fluid machinery Expired - Fee Related CN104093937B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12000481 2012-01-25
EP12000481.7 2012-01-25
PCT/EP2012/072096 WO2013110367A1 (en) 2012-01-25 2012-11-08 Rotor for a turbomachine

Publications (2)

Publication Number Publication Date
CN104093937A CN104093937A (en) 2014-10-08
CN104093937B true CN104093937B (en) 2016-05-18

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Application Number Title Priority Date Filing Date
CN201280068164.7A Expired - Fee Related CN104093937B (en) 2012-01-25 2012-11-08 For the rotor of double-current method fluid machinery

Country Status (5)

Country Link
US (1) US20140369827A1 (en)
EP (1) EP2776679A1 (en)
JP (1) JP2015509161A (en)
CN (1) CN104093937B (en)
WO (1) WO2013110367A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103821567B (en) * 2014-01-23 2015-11-18 西北工业大学 A kind of aircraft engine high pressure rotor Structural Design
CN106089307B (en) * 2016-07-29 2018-01-09 杭州汽轮机股份有限公司 A kind of low parameter big flow double split flow back pressure turbine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108573A (en) * 1977-01-26 1978-08-22 Westinghouse Electric Corp. Vibratory tuning of rotatable blades for elastic fluid machines
US4245950A (en) * 1977-02-21 1981-01-20 Hitachi, Ltd. Turbine rotorconstructions
CN101046159A (en) * 2006-03-31 2007-10-03 通用电气公司 Methods and apparatus for reducing stress in turbine buckets
DE102009003771A1 (en) * 2008-04-15 2009-10-29 General Electric Co. Low Outlet Loss Turbine and Method for Minimizing Outlet Losses

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827503U (en) * 1981-08-19 1983-02-22 株式会社東芝 steam turbine
JPS59150903A (en) * 1983-02-09 1984-08-29 Toshiba Corp Blade arrangement of rotary machine
US4958985A (en) * 1989-03-01 1990-09-25 Westinghouse Electric Corp. Performance low pressure end blading
US6814543B2 (en) * 2002-12-30 2004-11-09 General Electric Company Method and apparatus for bucket natural frequency tuning
US8100641B2 (en) * 2008-09-09 2012-01-24 General Electric Company Steam turbine having stage with buckets of different materials

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108573A (en) * 1977-01-26 1978-08-22 Westinghouse Electric Corp. Vibratory tuning of rotatable blades for elastic fluid machines
US4245950A (en) * 1977-02-21 1981-01-20 Hitachi, Ltd. Turbine rotorconstructions
CN101046159A (en) * 2006-03-31 2007-10-03 通用电气公司 Methods and apparatus for reducing stress in turbine buckets
DE102009003771A1 (en) * 2008-04-15 2009-10-29 General Electric Co. Low Outlet Loss Turbine and Method for Minimizing Outlet Losses

Also Published As

Publication number Publication date
US20140369827A1 (en) 2014-12-18
WO2013110367A1 (en) 2013-08-01
JP2015509161A (en) 2015-03-26
CN104093937A (en) 2014-10-08
EP2776679A1 (en) 2014-09-17

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C10 Entry into substantive examination
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Granted publication date: 20160518

Termination date: 20161108