JPS5656975A - Spiral casing for water turbine - Google Patents

Spiral casing for water turbine

Info

Publication number
JPS5656975A
JPS5656975A JP13322679A JP13322679A JPS5656975A JP S5656975 A JPS5656975 A JP S5656975A JP 13322679 A JP13322679 A JP 13322679A JP 13322679 A JP13322679 A JP 13322679A JP S5656975 A JPS5656975 A JP S5656975A
Authority
JP
Japan
Prior art keywords
flow
spiral
preliminary
whirl
path
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
JP13322679A
Other languages
Japanese (ja)
Other versions
JPS6154954B2 (en
Inventor
Yutaka Kawada
Makoto Kobayashi
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP13322679A priority Critical patent/JPS5656975A/en
Publication of JPS5656975A publication Critical patent/JPS5656975A/en
Publication of JPS6154954B2 publication Critical patent/JPS6154954B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/15—Geometry two-dimensional spiral
    • 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
    • F05B2250/20—Geometry three-dimensional
    • F05B2250/25—Geometry three-dimensional helical
    • 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

  • Hydraulic Turbines (AREA)

Abstract

PURPOSE: To improve a water turbine efficiency, by a method wherein a flow-in path is bent in the same direction as that of a casing spiral.
CONSTITUTION: A preliminary whirl flow path 6 having a spiral angle ϕO is positioned at an upstream side outside a point A where an outer shell 1a of a casing spiral terminal section crosses a stay vane 3 row. A centrifugal force excercises on a flow from the upper stream at the preliminary whirl flow path 6 and said flow changes from an uniform flow 9 to a free spiral type speed distribution 10 on a flow cross section surface, whereby a well-rectified flow is obtained at a stay vane inlet and over the whole circumference. That is, after the free spiral flow speed distribution is realized at the preliminary whirl flow path 6, the flow reaches a point A and afterwards, whereby the influence by a secondary flow can be uniformalized in the circumferential direction and accordingly, a peak proper of the secondary flow is not produced. After flow-in water passes through the stay vanes 3, it enters into runner blades 5a through guide vanes to rotate runners 5.
COPYRIGHT: (C)1981,JPO&Japio
JP13322679A 1979-10-16 1979-10-16 Spiral casing for water turbine Granted JPS5656975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13322679A JPS5656975A (en) 1979-10-16 1979-10-16 Spiral casing for water turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13322679A JPS5656975A (en) 1979-10-16 1979-10-16 Spiral casing for water turbine

Publications (2)

Publication Number Publication Date
JPS5656975A true JPS5656975A (en) 1981-05-19
JPS6154954B2 JPS6154954B2 (en) 1986-11-25

Family

ID=15099675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13322679A Granted JPS5656975A (en) 1979-10-16 1979-10-16 Spiral casing for water turbine

Country Status (1)

Country Link
JP (1) JPS5656975A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101194712B1 (en) 2010-04-30 2012-10-25 남동명 Generator system using rotating of turbulence

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101194712B1 (en) 2010-04-30 2012-10-25 남동명 Generator system using rotating of turbulence

Also Published As

Publication number Publication date
JPS6154954B2 (en) 1986-11-25

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