JPS54114651A - Running control in multi-stage hydraulic machines - Google Patents
Running control in multi-stage hydraulic machinesInfo
- Publication number
- JPS54114651A JPS54114651A JP2162578A JP2162578A JPS54114651A JP S54114651 A JPS54114651 A JP S54114651A JP 2162578 A JP2162578 A JP 2162578A JP 2162578 A JP2162578 A JP 2162578A JP S54114651 A JPS54114651 A JP S54114651A
- Authority
- JP
- Japan
- Prior art keywords
- stage section
- guide vane
- opening
- section guide
- highest
- 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
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Water Turbines (AREA)
Abstract
PURPOSE: To safen a hydraulic machine by opening the highest stage section guide vane smaller than that of another stage section after another stage section guide vane is opened at water wheel start or pump stop.
CONSTITUTION: When a water wheel or a pump starts operating at water wheel start or pump stop after opening the guide vanes 2 and 4, the highest stage section guide vane 4 is opened after first opening another stage section guide vane 2 with the highest pressure stage section guide vane 4 opened and the degree of opening in the highest pressure stage section guide vane 4 is kept lower than that of another stage section guide vane, then the guide vanes are controlled up to the prescribed degree of opening a0. This permits the effect of hydraulic change due to the degree of opening control of the guide vanes to be large only in the extremely limited channel section of the casing 6 or such at the hydraulic duct farther than the highest pressure stage section guide vane 4 to be large and a greater part of channels to be safe from the strength viewpoint.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2162578A JPS54114651A (en) | 1978-02-28 | 1978-02-28 | Running control in multi-stage hydraulic machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2162578A JPS54114651A (en) | 1978-02-28 | 1978-02-28 | Running control in multi-stage hydraulic machines |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54114651A true JPS54114651A (en) | 1979-09-06 |
JPS628636B2 JPS628636B2 (en) | 1987-02-24 |
Family
ID=12060237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2162578A Granted JPS54114651A (en) | 1978-02-28 | 1978-02-28 | Running control in multi-stage hydraulic machines |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54114651A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59141774A (en) * | 1983-02-02 | 1984-08-14 | Hitachi Ltd | Multi-stage hydraulic machine |
CN107917089A (en) * | 2017-11-17 | 2018-04-17 | 上海交通大学 | Water circulating pump pumps leaf aperture optimal regulation method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52139207A (en) * | 1976-05-17 | 1977-11-21 | Hokubu Kk | Method of protecting face of slope using steel perforated circular scribwork |
-
1978
- 1978-02-28 JP JP2162578A patent/JPS54114651A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52139207A (en) * | 1976-05-17 | 1977-11-21 | Hokubu Kk | Method of protecting face of slope using steel perforated circular scribwork |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59141774A (en) * | 1983-02-02 | 1984-08-14 | Hitachi Ltd | Multi-stage hydraulic machine |
CN107917089A (en) * | 2017-11-17 | 2018-04-17 | 上海交通大学 | Water circulating pump pumps leaf aperture optimal regulation method |
Also Published As
Publication number | Publication date |
---|---|
JPS628636B2 (en) | 1987-02-24 |
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