CA2669840A1 - Hydraulic reaction turbine - Google Patents

Hydraulic reaction turbine Download PDF

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Publication number
CA2669840A1
CA2669840A1 CA002669840A CA2669840A CA2669840A1 CA 2669840 A1 CA2669840 A1 CA 2669840A1 CA 002669840 A CA002669840 A CA 002669840A CA 2669840 A CA2669840 A CA 2669840A CA 2669840 A1 CA2669840 A1 CA 2669840A1
Authority
CA
Canada
Prior art keywords
draft tube
turbine according
movable element
slot
opening
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.)
Granted
Application number
CA002669840A
Other languages
French (fr)
Other versions
CA2669840C (en
Inventor
Anders Wedmark
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.)
Andritz Technology and Asset Management GmbH
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 CA2669840A1 publication Critical patent/CA2669840A1/en
Application granted granted Critical
Publication of CA2669840C publication Critical patent/CA2669840C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/02—Machines or engines of reaction type; Parts or details peculiar thereto with radial flow at high-pressure side and axial flow at low-pressure side of rotors, e.g. Francis turbines
    • 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
    • F03B11/002—Injecting air or other fluid
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Control Of Water Turbines (AREA)

Abstract

Hydraulic reaction turbine comprising a runner; a draft tube (1) downstream of the runner; injection means (4,10) for introducing water into the draft tube in order to reduce pressure fluctuations therein; and control means (6) for the injection of water. The said control means comprise at least one movable element (6) incorporated in said injection means (4,10) and located closely adjacent to the draft tube wall (1a).

Claims (11)

1. Hydraulic reaction turbine comprising - a runner (100), - a draft tube (1) downstream of the runner, - injection means (4,10,5,20,30,40,50) for introducing water into the draft tube in order to reduce pressure fluctuations therein, - and control means (6,7,11,42,52) for the amount of water to be injected, characterised in that said control means comprise at least one movable element (6,7,11,42,52,62) incorporated in said injection means (4,10,5,20,30,40,50,60) and located closely adjacent to the draft tube wall (1a).
2. Turbine according to claim 1, wherein said injection means comprise at least one slot-like opening (10,20) in the draft tube wall (1a) for said water injection, and said movable element (6,7) is adapted to be adjusted in a direction closely parallel to the draft tube wall (1a) at the position of the slot-like opening (10,20).
3. Turbine according to claim 2, wherein one edge portion (6e,7e) of said movable element (6,7) forms a longer side of said slot-like opening (10,20).
4. Turbine according to claim 1, 2 or 3, wherein a plurality of said slot-like openings (20) are evenly distributed around a substantial portion of the periphery of said draft tube (1).
5. Turbine according to claim 4, wherein said movable element (7) is an integral element common to said plurality of slot-like openings (20) and preferably is adapted to be adjusted in an axial direction with respect to the draft tube (1).
6. Turbine according to claim 1, wherein said injection means comprise at least one tubular nozzle (40,41,42,50,60) directed at an angle through the draft tube wall (1a), and said movable element (42,52,62) is adapted to be adjusted in a direction closely parallel to the axial direction of the tubular nozzle.
7. Turbine according to claim 6, wherein said tubular nozzle (40,41,42) has a generally rectangular cross-sectional shape and is provided with a slot-like opening (44) for said water injection and an edge portion (42e) of said movable element (42) forms a longer side of said slot-like opening (44).
8. Turbine according to claim 6, wherein said movable element forms a sleeve-like tip (52) of said tubular nozzle (50) and is adapted to be adjusted telescopically in axial relation to the tubular nozzle, and an outwardly diverging insert member (51) is provided and shaped for cooperation with outer end portions (52e) of said sleeve-like tip (52).
9. Turbine according to claim 6, wherein said movable element comprises an axially extended rod (62) being adjustable in its longitudinal direction within the tubular nozzle (60) and having an outer end member (64) adapted to cooperate with outer end portions (60e) of the nozzle (60).
10. Turbine according to claim 9, wherein said end member (64) has an outwardly diverging shape.
11. Turbine according to any one of claims 1-5, wherein said injection means (4,10,5,20) comprise at least one opening (10,20) in the draft tube wall 1a having an outwardly diverging flow cross-sectional area.
CA2669840A 2006-11-16 2007-10-10 Hydraulic reaction turbine Expired - Fee Related CA2669840C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20065275A NO325508B1 (en) 2006-11-16 2006-11-16 Hydraulic reaction turbine
NO20065275 2006-11-16
PCT/NO2007/000355 WO2008060159A2 (en) 2006-11-16 2007-10-10 Hydraulic reaction turbine

Publications (2)

Publication Number Publication Date
CA2669840A1 true CA2669840A1 (en) 2008-05-22
CA2669840C CA2669840C (en) 2012-08-21

Family

ID=39281773

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2669840A Expired - Fee Related CA2669840C (en) 2006-11-16 2007-10-10 Hydraulic reaction turbine

Country Status (3)

Country Link
CA (1) CA2669840C (en)
NO (1) NO325508B1 (en)
WO (1) WO2008060159A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322382B (en) * 2011-06-02 2013-03-27 杭州电子科技大学 Draft tube based on vibrating vortex generators

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61178563A (en) * 1985-02-01 1986-08-11 Fuji Electric Co Ltd Draft tube of waterwheel
JPS61294172A (en) * 1985-06-20 1986-12-24 Toshiba Eng Co Ltd Preventing apparatus for turbulence of water surface in suction pipe
JPH02238177A (en) * 1989-03-08 1990-09-20 Tohoku Electric Power Co Inc Suction system for hydraulic turbine
ATE145450T1 (en) * 1992-04-14 1996-12-15 Ente Naz Energia Elettrica CONTROLLING PRESSURE AND POWER Fluctuations in WATER TURBINES
JP2001165025A (en) * 1999-12-14 2001-06-19 Toshiba Corp Pumped storage hydraulic machinery
NO20044391D0 (en) * 2004-10-18 2004-10-18 Troms Kraft Produksjon As Device and method of suction pipe

Also Published As

Publication number Publication date
WO2008060159A3 (en) 2008-07-10
CA2669840C (en) 2012-08-21
NO20065275L (en) 2008-05-19
NO325508B1 (en) 2008-05-26
WO2008060159A2 (en) 2008-05-22

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EEER Examination request
MKLA Lapsed

Effective date: 20161011