WO2004051078A1 - Turbine hydraulique - Google Patents

Turbine hydraulique Download PDF

Info

Publication number
WO2004051078A1
WO2004051078A1 PCT/EP2003/013398 EP0313398W WO2004051078A1 WO 2004051078 A1 WO2004051078 A1 WO 2004051078A1 EP 0313398 W EP0313398 W EP 0313398W WO 2004051078 A1 WO2004051078 A1 WO 2004051078A1
Authority
WO
WIPO (PCT)
Prior art keywords
water turbine
axial water
blades
turbine according
housing
Prior art date
Application number
PCT/EP2003/013398
Other languages
German (de)
English (en)
Inventor
Thomas KÄCHELE
Original Assignee
Voith Siemens Hydro Power Generation Gmbh & Co. Kg
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 Siemens Hydro Power Generation Gmbh & Co. Kg filed Critical Voith Siemens Hydro Power Generation Gmbh & Co. Kg
Publication of WO2004051078A1 publication Critical patent/WO2004051078A1/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
    • 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
    • F03B11/006—Sealing arrangements
    • 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 water turbines, in particular axial water turbines, for. B. Kaplan turbines. See for example DE 101 00 963 A
  • Such a turbine has an impeller, a stator and a housing as essential parts.
  • the impeller comprises a shaft and a number of blades which are carried by and rotate with the shaft.
  • the blades are generally adjustable about axes of rotation that are perpendicular to the longitudinal axis of the shaft.
  • the adjustment of the blades serves to optimize the efficiency of the turbine, namely across the entire working area.
  • the cavitation is reduced or avoided with appropriate adjustment.
  • Kaplan turbines with a vertical shaft, but also with a horizontal shaft.
  • the invention is based on the object of designing a Kaplan turbine of the type described at the outset in such a way that the efficiency is increased and the
  • the inventor has focused on a solution that has so far been used in the
  • Figure 1 shows a Kaplan turbine with adjustable blades in elevation and partially in section.
  • Figure 2 shows a tubular turbine in an axial section.
  • Figure 3 shows part of an impeller of a Kaplan turbine, partly in
  • Figure 4 shows the blade shown in Figure 3 with seal in one
  • Figure 5 shows the seal of Figure 4 in an enlarged view and in a sectional view A-A.
  • the Kaplan turbine shown in FIG. 1 has an impeller 1 which is supported by a shaft 2.
  • the shaft 2 is arranged vertically.
  • the drive has adjustable blades 1.1.
  • the impeller is enclosed by a current-carrying wall 3.
  • a guide vane ring 4 is also provided. This is stored in the wall 3.
  • the guide vanes 4.1 are also adjustable.
  • Adjustment force is applied, which is proportional to the fall height.
  • the blades 1.1 each carry a sealing element 30 on their peripheral area. This consists of an elastic and at the same time highly wear-resistant material. It has the shape of a ribbon. It is touching or almost touching the current-carrying wall 3, so that there is virtually no gap between these two.
  • the Kaplan turbine shown in FIG. 2 is a tubular turbine with a horizontal shaft.
  • a tubular wall 3 forms a flow channel.
  • the turbine again has the same components as those according to FIG. 1.
  • An impeller 1 and a guide vane ring 4 can be seen.
  • Blades that is, they are firmly connected to them, and rest on the inner surface of the wall 3.
  • FIGS. 3, 4 and 5 How such a configuration looks in detail can be seen from FIGS. 3, 4 and 5.
  • Figure 3 illustrates two embodiments. See area A on the left and area B on the right. See also Detail A and Detail B.
  • a sealing unit 30 is assigned to this rotor blade.
  • the sealing unit 30 comprises a sealing element 30.1.
  • the seal 30.1 is assigned a support element 30.2.
  • the sealing element consists of elastic, pliable, rubber-like material. It is fixed in the peripheral area of the blade 1.1.
  • the Support element 30.2 is fixed both to the rotor blade 1.1 and to the sealing element 30.1.
  • the sealing element 30.1 is fixed in such a way that the sealing element 30.1 is interchangeable.
  • the pressure side DS and the suction side SS are indicated in FIGS. 4 and 5.
  • the water flows from top to bottom.
  • the sealing element 30.1 is directed against the flow. The presses
  • the rotation of the impeller 1 produces a drag flow with respect to the sealing element 30.1 from the suction side to the pressure side.
  • the sealing element is lifted off the housing wall 3, similar to a hydrodynamic plain bearing. There is thus a minimal gap between the housing wall 3 and the sealing element 30.1. This gap is filled with water. The water has a "lubricating effect" to a certain extent. This prevents wear of the sealing element 30.1.
  • a hydraulic seal can be provided in addition to the mechanical sealing unit 30 or by itself.
  • a water curtain is generated between the inner surface of the wall 3 and the outer circumference of the moving blades or the guide blades.
  • either the wall 3 or the blades are provided with bores which have a pressurized water connection, and their
  • Mouths are each directed towards the other element - wall or blade - so that the gap between these two is more or less is sealed and no or only a small gap flow can take place.

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 turbine hydraulique axiale comprenant : un rotor pourvu d'un moyeu et d'aubes mobiles ; un stator pourvu d'aubes fixes ; un logement entourant le rotor ainsi que le stator. Selon l'invention, ledit rotor est relié à un arbre de turbine de façon à être solidaire en rotation avec ce dernier. La turbine hydraulique selon l'invention est caractérisée en ce qu'une unité d'étanchéité est prévue pour obturer les interstices ou réduire la largeur des interstices entre les bords périphériques d'au moins quelques aubes et le logement.
PCT/EP2003/013398 2002-11-29 2003-11-28 Turbine hydraulique WO2004051078A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10255770.5 2002-11-29
DE10255770A DE10255770A1 (de) 2002-11-29 2002-11-29 Wasserturbine

Publications (1)

Publication Number Publication Date
WO2004051078A1 true WO2004051078A1 (fr) 2004-06-17

Family

ID=32318801

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/013398 WO2004051078A1 (fr) 2002-11-29 2003-11-28 Turbine hydraulique

Country Status (2)

Country Link
DE (1) DE10255770A1 (fr)
WO (1) WO2004051078A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012005271B3 (de) 2012-03-15 2013-02-28 Voith Patent Gmbh 1 - 7Propeller für eine Strömungsmaschine oder für ein Schiff

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE265282C (fr) *
US1694481A (en) * 1926-07-12 1928-12-11 Moody Lewis Ferry Propeller-type turbine or pump
US2045918A (en) * 1933-12-29 1936-06-30 Baldwin Southwark Corp Cavitation control means for blade periphery
US2059650A (en) * 1934-08-23 1936-11-03 Allis Chalmers Mfg Co Hydraulic turbine
DE719267C (de) * 1940-07-25 1942-04-02 J M Voith Maschinenfabrik Durch Druckwasser gegen den der UEbertragung der Umfangskraft dienenden Aussenkranz des Laufrades einer Wasserturbine oder Pumpe angepresster Spaltdichtungsring
US3132839A (en) * 1960-04-09 1964-05-12 Hussein M Haekal Method of and arrangement for reducing clearance losses in axial and semi-axial flowmachines
FR1382505A (fr) * 1964-02-06 1964-12-18 Charmilles Sa Ateliers Machine hydraulique, notamment turbine ou pompe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE265282C (fr) *
US1694481A (en) * 1926-07-12 1928-12-11 Moody Lewis Ferry Propeller-type turbine or pump
US2045918A (en) * 1933-12-29 1936-06-30 Baldwin Southwark Corp Cavitation control means for blade periphery
US2059650A (en) * 1934-08-23 1936-11-03 Allis Chalmers Mfg Co Hydraulic turbine
DE719267C (de) * 1940-07-25 1942-04-02 J M Voith Maschinenfabrik Durch Druckwasser gegen den der UEbertragung der Umfangskraft dienenden Aussenkranz des Laufrades einer Wasserturbine oder Pumpe angepresster Spaltdichtungsring
US3132839A (en) * 1960-04-09 1964-05-12 Hussein M Haekal Method of and arrangement for reducing clearance losses in axial and semi-axial flowmachines
FR1382505A (fr) * 1964-02-06 1964-12-18 Charmilles Sa Ateliers Machine hydraulique, notamment turbine ou pompe

Also Published As

Publication number Publication date
DE10255770A1 (de) 2004-06-17

Similar Documents

Publication Publication Date Title
DE60218785T2 (de) Vorrichtung zur Verbesserung der Schmierung von Wälzlagern insbesondere für Windturbinen
DE2413655C3 (de) Einrichtung zum dynamischen Stabilisieren des Läufers einer Gas- oder Dampfturbine
DE2164885C2 (de) Mahl- bzw. Schleifpumpe
DE3925890A1 (de) Kreiselpumpe
DE10327574B4 (de) Laufrad für eine Kraftstoffpumpe
DE19707168A1 (de) Turbine mit verstellbaren Schaufeln
DE102004029107A1 (de) Francis-Turbine
DE102004029109A1 (de) Francisturbine
DE19803390C1 (de) Laufrad für eine Strömungsmaschine, insbesondere für eine Francisturbine
WO1995025895A1 (fr) Dispositif pour reduire le bruit de pompes centrifuges
WO2011079892A1 (fr) Pompe immergée
DE102018009873A1 (de) Schneidewerk für eine Abwasser-Tauchpumpe
WO2004051078A1 (fr) Turbine hydraulique
EP0930432B1 (fr) Forme d'une aube du rotor de turbine hydraulique du type Francis
DE1628297A1 (de) Axialstroemungsapparat
DE649668C (de) Laeufer fuer hydraulische Maschinen
DE2434397C2 (de) Radialturbine
EP1473078B1 (fr) Agitateur submersible motorisé pour installations de production d'un biogaz
DE10100983A1 (de) Laufrad für eine Wasserturbine oder Wasserpumpe
EP2601402B1 (fr) Moteur hydraulique
DE19950228A1 (de) Hydraulische Strömungsmaschine
EP3339654B1 (fr) Pompe centrifuge
DE19950227A1 (de) Hydraulische Strömungsmaschine
DE2539636C2 (de) Läufer für eine hydrodynamische Maschine, insbesondere eine Francisturbine oder eine umkehrbare Pumpenturbine
DE10325698B4 (de) Laufrad für eine Francisturbine

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): BR CN US

WA Withdrawal of international application