JPS56135756A - Hydraulic machine having semispiral casing - Google Patents
Hydraulic machine having semispiral casingInfo
- 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
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
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)
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 |
-
1980
- 1980-03-28 JP JP3890180A patent/JPS56135756A/en active Granted
Cited By (5)
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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