NO971894L - Nozzle device for a free-jet water turbine - Google Patents

Nozzle device for a free-jet water turbine

Info

Publication number
NO971894L
NO971894L NO971894A NO971894A NO971894L NO 971894 L NO971894 L NO 971894L NO 971894 A NO971894 A NO 971894A NO 971894 A NO971894 A NO 971894A NO 971894 L NO971894 L NO 971894L
Authority
NO
Norway
Prior art keywords
angle
stagger
jet water
water turbine
free
Prior art date
Application number
NO971894A
Other languages
Norwegian (no)
Other versions
NO309588B1 (en
NO971894D0 (en
Inventor
Lothar Geppert
Original Assignee
Sulzer Hydro 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 Sulzer Hydro Ag filed Critical Sulzer Hydro Ag
Publication of NO971894L publication Critical patent/NO971894L/en
Publication of NO971894D0 publication Critical patent/NO971894D0/en
Publication of NO309588B1 publication Critical patent/NO309588B1/en

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
    • F03B1/00—Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on blades or like rotors, e.g. Pelton wheels; Parts or details peculiar thereto
    • F03B1/04—Nozzles; Nozzle-carrying members
    • 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
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
    • F01D1/026—Impact turbines with buckets, i.e. impulse turbines, e.g. Pelton turbines
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/18—Final actuators arranged in stator parts varying effective number of nozzles or guide conduits, e.g. sequentially operable valves for steam turbines
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hydraulic Turbines (AREA)
  • Nozzles (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

The invention relates to an open-jet water turbine for powers of over 1kW, especially a Pelton turbine, with a bowl wheel and a plurality of injection nozzles (4, 5) arranged at its periphery and mutually staggered by an angle alpha . Such installations are usually designed with an angle of stagger alpha = 90 DEG because the efficiency falls as the angle of stagger is reduced. Contrary to accepted opinion, however, the efficiency increases once more of the angle of stagger is even smaller than 45 DEG and a flat efficiency curve with high efficiencies over a wide range of load is obtained. In addition, a higher injection can be attained, leading to lower investment costs for a given power.
NO971894A 1994-10-25 1997-04-24 Nozzle device for a free-jet water turbine NO309588B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4438012A DE4438012A1 (en) 1994-10-25 1994-10-25 Group arrangement of injection nozzles for free jet water turbines
PCT/CH1995/000242 WO1996012888A1 (en) 1994-10-25 1995-10-18 Nozzle arrangement for an open-jet water turbine

Publications (3)

Publication Number Publication Date
NO971894L true NO971894L (en) 1997-04-24
NO971894D0 NO971894D0 (en) 1997-04-24
NO309588B1 NO309588B1 (en) 2001-02-19

Family

ID=6531585

Family Applications (1)

Application Number Title Priority Date Filing Date
NO971894A NO309588B1 (en) 1994-10-25 1997-04-24 Nozzle device for a free-jet water turbine

Country Status (9)

Country Link
EP (1) EP0788583B1 (en)
AT (1) ATE175475T1 (en)
CO (1) CO4520210A1 (en)
DE (2) DE4438012A1 (en)
ES (1) ES2128079T3 (en)
MX (1) MX9702760A (en)
NO (1) NO309588B1 (en)
PE (1) PE53196A1 (en)
WO (1) WO1996012888A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102606364A (en) * 2012-04-13 2012-07-25 西华大学 Inclined type water turbine with adjustable jetting angles and multiple nozzles

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733044A (en) * 1956-01-31 Impulse turbine
DE125184C (en) *
DE373611C (en) * 1921-06-28 1923-04-13 Arnold Berghaus Maschinenfabri Process for the production of bucket wheels and bucket wheels for compressed air turbines
GB284806A (en) * 1926-08-10 1928-02-10 Gordon Pitt Improvements in and relating to rotary engines
US2735647A (en) * 1950-06-24 1956-02-21 duport
DE2429538A1 (en) * 1974-06-20 1976-01-08 Willy Reuter Energy utilisation from water power with pelton turbine - using normal water flow, reduction pipes, suitable for boat propulsion unit
SE435411B (en) * 1983-02-15 1984-09-24 Stal Laval Turbin Ab FLOOD CONTROL WITH PARALLEL SHOVERS
JPH05256244A (en) * 1992-03-12 1993-10-05 Fuji Electric Co Ltd Irregular pelton turbine
JPH05256243A (en) * 1992-03-12 1993-10-05 Fuji Electric Co Ltd Irregular type pelton turbine

Also Published As

Publication number Publication date
ATE175475T1 (en) 1999-01-15
EP0788583A1 (en) 1997-08-13
NO309588B1 (en) 2001-02-19
CO4520210A1 (en) 1997-10-15
ES2128079T3 (en) 1999-05-01
DE4438012A1 (en) 1996-05-02
PE53196A1 (en) 1996-12-03
NO971894D0 (en) 1997-04-24
EP0788583B1 (en) 1999-01-07
DE59504755D1 (en) 1999-02-18
WO1996012888A1 (en) 1996-05-02
MX9702760A (en) 1998-04-30

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