JPS56135756A - Hydraulic machine having semispiral casing - Google Patents

Hydraulic machine having semispiral casing

Info

Publication number
JPS56135756A
JPS56135756A JP3890180A JP3890180A JPS56135756A JP S56135756 A JPS56135756 A JP S56135756A JP 3890180 A JP3890180 A JP 3890180A JP 3890180 A JP3890180 A JP 3890180A JP S56135756 A JPS56135756 A JP S56135756A
Authority
JP
Japan
Prior art keywords
casing
semispiral
vanes
water flow
water
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
JP3890180A
Other languages
Japanese (ja)
Other versions
JPS6228315B2 (en
Inventor
Shoji Ito
Tsutomu Okuzawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3890180A priority Critical patent/JPS56135756A/en
Publication of JPS56135756A publication Critical patent/JPS56135756A/en
Publication of JPS6228315B2 publication Critical patent/JPS6228315B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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 render the water flow through stay vanes uniform over the entire circumference, by disposing one or more water guide vanes in a casing on the upstream side of the stay vanes.
CONSTITUTION: Two water guide vanes 8a, 8b having a curved camber line are disposed in a casing 1 on the upstream side of stay vanes 4. By the function of these guide vanes 8a, 8b arranged as above, water flow toward one wall surface in the semispiral section of the casing is increased, so that the amount of water flowing into the beginning portion 6 of the sprial is reduced. Resultantly, the velocity of water flow at the beginning portion 6 of the spiral is lowered while that at the end portion 7 of the spiral is increased. Therefore, it is enabled to make uniform the water flow through adjacent two stay vanes in a semispiral casing.
COPYRIGHT: (C)1981,JPO&Japio
JP3890180A 1980-03-28 1980-03-28 Hydraulic machine having semispiral casing Granted JPS56135756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3890180A JPS56135756A (en) 1980-03-28 1980-03-28 Hydraulic machine having semispiral casing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3890180A JPS56135756A (en) 1980-03-28 1980-03-28 Hydraulic machine having semispiral casing

Publications (2)

Publication Number Publication Date
JPS56135756A true JPS56135756A (en) 1981-10-23
JPS6228315B2 JPS6228315B2 (en) 1987-06-19

Family

ID=12538089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3890180A Granted JPS56135756A (en) 1980-03-28 1980-03-28 Hydraulic machine having semispiral casing

Country Status (1)

Country Link
JP (1) JPS56135756A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6245977A (en) * 1985-08-22 1987-02-27 Fuji Electric Co Ltd Semispiral type kaplan turbine
JPS6282300A (en) * 1985-10-04 1987-04-15 Hitachi Ltd Suction flow route of prewhirl type pump
JP2005320869A (en) * 2004-05-06 2005-11-17 Hitachi Industries Co Ltd Suction casing, suction passage structure and fluid machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6245977A (en) * 1985-08-22 1987-02-27 Fuji Electric Co Ltd Semispiral type kaplan turbine
JPS6282300A (en) * 1985-10-04 1987-04-15 Hitachi Ltd Suction flow route of prewhirl type pump
JP2005320869A (en) * 2004-05-06 2005-11-17 Hitachi Industries Co Ltd Suction casing, suction passage structure and fluid machine
JP4573020B2 (en) * 2004-05-06 2010-11-04 株式会社日立プラントテクノロジー Suction casing, suction flow path structure and fluid machine
EP1593854B1 (en) * 2004-05-06 2014-09-03 Hitachi, Ltd. Inlet casing and suction passage structure

Also Published As

Publication number Publication date
JPS6228315B2 (en) 1987-06-19

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