WO2012110198A1 - Turbomachine hydraulique - Google Patents

Turbomachine hydraulique Download PDF

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Publication number
WO2012110198A1
WO2012110198A1 PCT/EP2012/000406 EP2012000406W WO2012110198A1 WO 2012110198 A1 WO2012110198 A1 WO 2012110198A1 EP 2012000406 W EP2012000406 W EP 2012000406W WO 2012110198 A1 WO2012110198 A1 WO 2012110198A1
Authority
WO
WIPO (PCT)
Prior art keywords
traverse
ring
groove
impeller
decks
Prior art date
Application number
PCT/EP2012/000406
Other languages
German (de)
English (en)
Inventor
Martin Schabasser
Original Assignee
Voith Patent Gmbh
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 Voith Patent Gmbh filed Critical Voith Patent Gmbh
Publication of WO2012110198A1 publication Critical patent/WO2012110198A1/fr

Links

Classifications

    • 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
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1845—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem
    • 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
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/109—Purpose of the control system to prolong engine life
    • F05B2270/1095—Purpose of the control system to prolong engine life by limiting mechanical stresses
    • 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
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the invention relates to a hydraulic turbomachine, in particular a water turbine, pump turbine or pump, according to the preamble of claim 1.
  • a hydraulic turbomachine in particular a water turbine, pump turbine or pump, according to the preamble of claim 1.
  • These may be machines of the Francis type or the Kaplan type or other machines. It is essential that it is about machines with a spiral housing.
  • US-A-4 496 282 or to DE 199 50 228 AI As an example reference is made to US-A-4 496 282 or to DE 199 50 228 AI.
  • volute of such a turbomachine encloses the impeller. It lies in a plane perpendicular to the axis of rotation of the impeller. Because the
  • Impeller axis is generally vertical, it is a horizontal plane.
  • the spiral housing is open on its inside against the impeller. It thus has an annular gap which runs around the inner circumference of the spiral housing, so that working medium from the volute can flow through the annular gap on the entire inner circumference to the impeller.
  • the annular gap is thus defined by two circumferential edges.
  • a truss ring At the said annular gap is followed, seen in the flow direction, a truss ring.
  • This comprises two Traversenringdecks, which are arranged concentrically to the axis of rotation of the impeller and have a mutual distance in the axial direction.
  • the traverse ring decks are connected by tie rods, so-called traverses.
  • each of the said peripheral edges of the spiral housing with one of the two Traversenringdecks is firmly connected.
  • the truss ring serves to prevent expansion of the volute casing under the high internal pressure.
  • the invention is based on the object, a hydraulic flow machine of the type mentioned, comprising a spiral housing and a
  • Truss ring which avoids the disadvantages of the prior art.
  • a hydraulic turbomachine according to the invention with an impeller which rotates about an axis of rotation and has a multiplicity of moving blades comprises a volute which surrounds the impeller and is open towards it by a slot formed by two peripheral edges.
  • the hydraulic fluid machine further comprises a truss ring comprising two
  • Trussing ring decks which are interconnected by trusses on.
  • the spiral housing is in the area of the peripheral edges of the
  • hydraulic turbomachine is arranged.
  • the term "dead water area” refers to the area or space through which the main flow of the working medium does not flow.
  • Such areas in known hydraulic turbomachines are, for example
  • FIG. 2 shows a detailed view of the cross-member ring shown in FIG.
  • the Francis turbine shown in Figure 1 has an impeller 1. This includes a plurality of blades 1.1.
  • the impeller 1 revolves around a rotation axis 2.
  • the impeller 1 is enclosed by a spiral housing 3.
  • the spiral casing 3 is, for example, of circular cross section. It has a circumferential annular gap which is open towards the impeller 1. The annular gap is limited by
  • Traverse ring decks 4.1 and 4.2 To support the Traversenringdecks 4.1 and 4.2 at least one traverse 4.3 is provided.
  • the areas of the peripheral edges 3.1, 3.2 are welded to the traverse ring decks 4.1, 4.2.
  • a nozzle 5 is provided with vane 5.1.
  • suction pipe is connected in the flow direction.
  • the main flow direction of the working medium, here water, is indicated by arrows in FIG.
  • FIG. 2 shows an enlarged detail view of a cross-member ring 4 from FIG. Essentially, there are the same elements with them
  • Traverse ring 4 is introduced with respect to the axis of rotation 2 shown in Figure 1.
  • the groove 6 is close to the transition from the traverse to 4.3
  • the truss ring 4 encloses in the area of
  • Turbine cover 7 and cross-ring 4.1 and 4.2 are thus opposite and limit together with the groove 6 an auxiliary space of the hydraulic fluid machine.
  • the side room is outside the direction indicated by the arrows main flow direction of the
  • the groove 6 does not affect the main flow. Through the groove 6 in addition a better stress distribution, which can reduce the Traversendicke achieved. As a result, the use of materials can be significantly reduced while avoiding premature material fatigue.
  • the groove 6 can be designed as a single continuous circumferential groove or a plurality of circumferentially distributed individual non-contiguous grooves and be prepared by urformenden or cutting process. It may differ from the illustrated U-shaped cross-section and be introduced alternatively or additionally on the outer circumference of the truss ring in Traversenringdeck. In this case, the groove may be shielded by appropriate means from the main flow of the working medium in order to avoid influencing it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)

Abstract

L'invention concerne une turbomachine hydraulique comprenant une roue mobile qui tourne autour d'un axe de rotation et qui présente une pluralité d'aubes mobiles, une bâche spirale qui entoure la roue mobile et qui est ouverte en direction de cette dernière par un espace annulaire périphérique délimité par deux bords périphériques, ainsi qu'un avant-distributeur comprenant deux flasques reliés entre eux par des avant-directrices, la bâche spirale étant raccordée aux flasques de l'avant-distributeur dans la zone des bords périphériques. L'invention est caractérisée en ce qu'une gorge est réalisée dans la face frontale radialement interne de l'avant-distributeur par rapport à l'axe de rotation, dans la zone de la transition de l'avant-directrice vers le flasque, la gorge se situant dans la zone du sillage de la turbomachine hydraulique et présentant une protection contre la corrosion sur ses faces externes.
PCT/EP2012/000406 2011-02-16 2012-01-31 Turbomachine hydraulique WO2012110198A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011011466A DE102011011466A1 (de) 2011-02-16 2011-02-16 Hydraulische Strömungsmaschine
DE102011011466.1 2011-02-16

Publications (1)

Publication Number Publication Date
WO2012110198A1 true WO2012110198A1 (fr) 2012-08-23

Family

ID=45562953

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/000406 WO2012110198A1 (fr) 2011-02-16 2012-01-31 Turbomachine hydraulique

Country Status (2)

Country Link
DE (1) DE102011011466A1 (fr)
WO (1) WO2012110198A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104318713B (zh) * 2013-06-08 2016-12-07 深圳亿维锐创科技股份有限公司 汽车驾驶员疲劳状态预判系统
CN104276085B (zh) * 2013-06-08 2015-09-23 江阴众和电力仪表有限公司 汽车驾驶员疲劳状态预判系统
CN110033204B (zh) * 2019-04-23 2021-03-02 上海电力学院 考虑海上风电场疲劳分布均匀性的发电检修联合调度方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB254464A (en) * 1925-05-13 1926-07-08 English Electric Co Ltd An improved construction of casing for hydraulic turbines and for other purposes
US1723254A (en) * 1926-12-06 1929-08-06 Morgan Smith S Co Hydraulic turbine
US1860618A (en) * 1930-08-08 1932-05-31 Allis Chalmers Mfg Co Hydraulic turbine
DE1703041B1 (de) * 1968-03-25 1971-12-23 Voith Gmbh J M Spiralgehaeuse fuer stroemungsmaschinen
US4780051A (en) * 1985-05-23 1988-10-25 Voith Hydro, Inc. Hydraulic turbine aeration apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE132525C (fr) *
US1823702A (en) * 1928-05-24 1931-09-15 Allis Chalmers Mfg Co Hydraulic machine
US3210045A (en) * 1963-05-09 1965-10-05 Nydqvist & Holm Ab Device for wicket guide stems for water turbines, pump turbines or pumps
US3186685A (en) * 1963-09-18 1965-06-01 Dominion Eng Works Ltd Method for construction of hydraulic turbine spiral cases
US4496282A (en) 1982-05-06 1985-01-29 Allis-Chalmers Corporation Reversible two-stage hydraulic machine
DE19950228A1 (de) 1999-10-19 2000-11-16 Voith Hydro Gmbh & Co Kg Hydraulische Strömungsmaschine
FR2932854B1 (fr) * 2008-06-23 2014-04-18 Alstom Hydro France Machine hydraulique a axe vertical.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB254464A (en) * 1925-05-13 1926-07-08 English Electric Co Ltd An improved construction of casing for hydraulic turbines and for other purposes
US1723254A (en) * 1926-12-06 1929-08-06 Morgan Smith S Co Hydraulic turbine
US1860618A (en) * 1930-08-08 1932-05-31 Allis Chalmers Mfg Co Hydraulic turbine
DE1703041B1 (de) * 1968-03-25 1971-12-23 Voith Gmbh J M Spiralgehaeuse fuer stroemungsmaschinen
US4780051A (en) * 1985-05-23 1988-10-25 Voith Hydro, Inc. Hydraulic turbine aeration apparatus

Also Published As

Publication number Publication date
DE102011011466A1 (de) 2012-08-16

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