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EP1658439A1 - Ensemble roue mobile de turbomachine - Google Patents

Ensemble roue mobile de turbomachine

Info

Publication number
EP1658439A1
EP1658439A1 EP04764145A EP04764145A EP1658439A1 EP 1658439 A1 EP1658439 A1 EP 1658439A1 EP 04764145 A EP04764145 A EP 04764145A EP 04764145 A EP04764145 A EP 04764145A EP 1658439 A1 EP1658439 A1 EP 1658439A1
Authority
EP
European Patent Office
Prior art keywords
impeller
impellers
tube
medium
turbomachine
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Withdrawn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
EP04764145A
Other languages
German (de)
English (en)
Inventor
Anton Niederbrunner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1658439A1 publication Critical patent/EP1658439A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F04D19/02—Multi-stage pumps
    • F04D19/026—Multi-stage pumps with a plurality of shafts rotating at different speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/04—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator for diminishing cavitation or vibration, e.g. balancing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/04—Machines or engines of reaction type; Parts or details peculiar thereto with substantially axial flow throughout rotors, e.g. propeller turbines
    • 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
    • F05B2220/32—Application in turbines in water turbines
    • 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
    • F05B2250/00—Geometry
    • F05B2250/30—Arrangement of components
    • F05B2250/31—Arrangement of components according to the direction of their main axis or their axis of rotation
    • F05B2250/311—Arrangement of components according to the direction of their main axis or their axis of rotation the axes being in line
    • 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
    • F05B2250/00—Geometry
    • F05B2250/30—Arrangement of components
    • F05B2250/31—Arrangement of components according to the direction of their main axis or their axis of rotation
    • F05B2250/315—Arrangement of components according to the direction of their main axis or their axis of rotation the main axis being substantially vertical
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Definitions

  • the invention relates to an impeller arrangement of a turbomachine in a tube through which a liquid or gaseous medium, in particular water, flows.
  • a known problem with hydraulically operated machines of all kinds is cavitation, which destroys impellers, at least reduces their service life, can impair the efficiency of the machines and can disrupt the permissible working range.
  • Many constructive measures have been taken and are known from the prior art in order to improve the efficiency of hydraulic machines with directed currents, and in many cases the constructive effort used for this is not in line with the resultant effect.
  • the invention has for its object to provide an impeller assembly which is simple and which leads to an improved mode of operation in turbomachines.
  • the object is achieved by an impeller arrangement in a tube, in which at least a first and a second impeller are arranged one behind the other on at least one shaft and that the medium flowing through the tube in the flow direction sets the impellers in a rotational movement.
  • This impeller arrangement according to the invention has the significant advantage that the medium flowing through an inventive tube with impellers arranged one behind the other, preferably water, but also steam or gas, is not swirled by the first impeller, but rather the first impeller transfers the deflected flow to one the first impeller tuned second impeller that can absorb the flow deflected by the first impeller so that it bears against the blade surfaces of the second impeller.
  • the individual blades of the second impeller are loaded more evenly and the medium flowing through the tube is distributed evenly over the individual blades. Stalls are avoided, optimized work areas can be set and operated permanently.
  • the impeller arrangement is preferably formed from a first, second and a third impeller, which can be arranged on a central shaft or on individual shafts.
  • the effects according to the invention are further enhanced with a third or even fourth impeller, and such a turbomachine can be operated particularly effectively.
  • the individual impellers are each individually connected to a shaft assigned to the respective impeller, the shafts are designed as hollow shafts, each of which can receive one or more shafts from impellers connected in advance. With such an arrangement, the turbomachine according to the invention can be made compact.
  • the first impeller preferably has a smaller flow area than the second impeller and the third impeller has a larger flow area than the second impeller.
  • the individual impellers are connected in a rotationally fixed manner to a shaft, they can permanently transmit torques to the individual shaft which, as required, drive generators which are connected to the shafts of the turbomachine according to the invention.
  • each impeller has a hub, to which blades are fastened, which together with the hub form an impeller.
  • the individual impellers can be connected to this shaft in a rotationally fixed manner at any point on a shaft, and arrangements can be created in which the individual impellers are spaced differently apart from one another.
  • the blades have any geometrical shape, so that they can be easily adapted to specific areas of application.
  • Blades and the flow area of the impellers expand the field of application of the turbomachine according to the invention and the turbomachine according to the invention can be adapted to different conditions, for example water heights, water pressures, water speeds, in the best possible way.
  • guide vanes are provided on the inner surface of the tube and are arranged between the impellers and / or in front of the first impeller.
  • the stationary guide vanes or guide plates can have a wide variety of shapes and they can be arranged on the inner surfaces of the tube at points or in a ring. When viewed in the direction of flow of the medium, the guide vanes preferably have a convex or a concave inflow surface for the flowing medium. With these shapes, a medium flowing through the pipe can be specifically deflected in a large speed and pressure range and matched to the impellers.
  • the shape and the diameter of the individual impellers can change and the arrangement of the individual impellers on one or more shafts can also take place at any distance.
  • the impeller arrangement according to the invention can be used in conjunction with low-pressure turbines or with any propeller turbine.
  • the figure shows at 10 an impeller arrangement which is formed from a tube 11, a first impeller 12, a second impeller 13 and a third impeller 14.
  • the first impeller 12 is fixed in a rotationally fixed manner on a first shaft 15 which is designed as a solid shaft.
  • the second impeller 13 is rotatably connected to a second shaft 16 which receives and / or guides the first shaft 15 as a hollow shaft.
  • the third impeller 14 is rotatably connected to a third shaft 17 in which the shafts 15 and 16 are rotatably arranged.
  • First guide vanes 19, 20 and second are on an inner surface 18
  • the first guide vanes 19, 20 are convex and the second guide vanes 21, 22 also have a convex surface when viewed in the direction of flow of the medium.
  • the inner surface 18 of the tube 11 is fastened or can also be arranged in a ring within the tube 11, depending on the requirements of the turbomachine according to the invention, which are shaped and arranged accordingly.
  • the length of the individual guide blades 19, 20, 21, 22 can be different, so that the medium flowing in the tube 11 is fed as uniformly as possible to the individual blades of the individual impellers.
  • the direction of flow of the medium in the tube 11 is indicated by arrow direction 23. This is preferably water. However, the medium can also be steam or a gas.
  • Individual generators are driven via the impellers 12, 13, 14 connected to the shafts 15, 16, 17.
  • the generators can also be interconnected if necessary, or a single generator is operated with the shafts 15, 16, 17.
  • An impeller arrangement 10 of a fluid-flow machine for liquid or gaseous media is characterized in that a first impeller 12, a second impeller 13 and a third impeller 14 are arranged one behind the other on shafts 15, 16, 17 in a tube 11. With such an arrangement of the impellers 12, 13, 14, cavitation during operation of a turbomachine with directed flows can be avoided and the individual impellers are loaded more uniformly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Hydraulic Turbines (AREA)

Abstract

L'invention concerne un ensemble roue mobile (10) de turbomachine à entraînement d'agents liquides ou gazeux. L'invention est caractérisée en ce qu'une première roue mobile (12), une deuxième roue mobile (13) et une troisième roue mobile (14) sont montées en série sur des axes (15, 16, 17) dans un conduit (11). Cette disposition des roues mobiles (12, 13, 14) permet d'éviter les cavitations lors du fonctionnement de la turbomachine à flux orientés et de soumettre les roues mobiles à une charge homogène.
EP04764145A 2003-08-21 2004-08-16 Ensemble roue mobile de turbomachine Withdrawn EP1658439A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10338395A DE10338395A1 (de) 2003-08-21 2003-08-21 Laufradanordnung einer Strömungsmaschine
PCT/EP2004/009153 WO2005021975A1 (fr) 2003-08-21 2004-08-16 Ensemble roue mobile de turbomachine

Publications (1)

Publication Number Publication Date
EP1658439A1 true EP1658439A1 (fr) 2006-05-24

Family

ID=34201776

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04764145A Withdrawn EP1658439A1 (fr) 2003-08-21 2004-08-16 Ensemble roue mobile de turbomachine

Country Status (3)

Country Link
EP (1) EP1658439A1 (fr)
DE (1) DE10338395A1 (fr)
WO (1) WO2005021975A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE536398C2 (sv) * 2012-02-21 2013-10-08 Bjoern Kristiansen Turbin med överströmning och minskande tvärsnittsarea
US10094355B2 (en) 2012-10-03 2018-10-09 Kyowa Engineering Consultants Co., Ltd. Water turbine generator
WO2014061116A1 (fr) 2012-10-17 2014-04-24 株式会社協和コンサルタンツ Générateur d'électricité submersible
JP5518276B1 (ja) 2013-03-05 2014-06-11 株式会社協和コンサルタンツ 没水式発電機
CN108035835B (zh) * 2017-12-07 2023-11-28 高邮市大江泵业有限公司 一种方便并联使用的新型水轮机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH316900A (de) * 1953-04-15 1956-10-31 Escher Wyss Ag Hydroelektrische Maschinenanlage mit gegenläufigen Laufrädern
DE4320180A1 (de) * 1992-06-19 1993-12-23 Antonio Artinano Läufereinheit für eine Axialströmungsmaschine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1698287A (en) * 1928-05-05 1929-01-08 Westgard Thomas Multistage air compressor or water pump
GB586562A (en) * 1942-02-11 1947-03-24 Joseph Stanley Hall Improvements in high speed axial flow elastic fluid turbines, compressors, superchargers and like apparatus
US2499772A (en) * 1944-06-24 1950-03-07 Eugene F Osborne Liquid air turbine
FR957061A (fr) * 1944-09-23 1950-02-14
FR1082831A (fr) * 1953-05-29 1955-01-03 Neyrpic Ets Groupe hydro-électrique
FR2506839B1 (fr) * 1981-05-27 1986-07-04 Onera (Off Nat Aerospatiale) Turboreacteur contra-rotatif simplifie
JP2000337240A (ja) * 1999-05-28 2000-12-05 Nishihara Tekko Kk 水流発電装置
JP4458641B2 (ja) * 1999-08-20 2010-04-28 株式会社東芝 軸流水車発電装置
NL1013559C2 (nl) * 1999-11-11 2001-05-28 Peter Alexander Josephus Pas Systeem voor het uit water produceren van waterstof onder gebruikmaking van een waterstroom zoals een golfstroom of getijdenstroom.
DE20011874U1 (de) * 2000-06-29 2000-11-30 Stern, Karl, 15344 Strausberg Strömungsmaschine zur Verwendung im Unterwasserkraftwerk

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH316900A (de) * 1953-04-15 1956-10-31 Escher Wyss Ag Hydroelektrische Maschinenanlage mit gegenläufigen Laufrädern
DE4320180A1 (de) * 1992-06-19 1993-12-23 Antonio Artinano Läufereinheit für eine Axialströmungsmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005021975A1 *

Also Published As

Publication number Publication date
WO2005021975A1 (fr) 2005-03-10
DE10338395A1 (de) 2005-03-17

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