JPS56167867A - Operation controlling method for hydraulic machine - Google Patents
Operation controlling method for hydraulic machineInfo
- Publication number
- JPS56167867A JPS56167867A JP7003780A JP7003780A JPS56167867A JP S56167867 A JPS56167867 A JP S56167867A JP 7003780 A JP7003780 A JP 7003780A JP 7003780 A JP7003780 A JP 7003780A JP S56167867 A JPS56167867 A JP S56167867A
- Authority
- JP
- Japan
- Prior art keywords
- vane
- air
- level
- water level
- inner passage
- 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 Water Turbines (AREA)
Abstract
PURPOSE: To avoid exposing a casing to a high pressure condition by a method wherein high-pressure compressed air is directly applied to only an inner passage which is on the inner side of a guide vane and is directly connected to a draft tube, so as to lower the water level.
CONSTITUTION: The guide vane 4 and an inlet valve 6 are so controlled that the vane 4 is fully closed earlier than the valve 6. When the vane 4 is fully closed, compressed air is supplied to the inner passage through an air supplying pipe 8 to depress the water within the inner passage to a specified level, and the supply of air is interrupted. When the valve 6 is fully closed, the passages on both sides of the vane 4 are communicated with each other to balance the pressure therein, then the vane 4 is opened and the residual water in the outer passage is discharged through the draft tube 7 by the centrifugal effect of a runner 2. When this operation is accompanied by a rise in the water level within the inner passage, the water level is controlled to return to the specified level by supplying air through the pipe 8. As a result, the water level in the outer passage is also depressed to the level of an opening part of the pipe 10 which is lower than the guide vane 4, so that the runner operation is shifted into an in-air rotation.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7003780A JPS56167867A (en) | 1980-05-28 | 1980-05-28 | Operation controlling method for hydraulic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7003780A JPS56167867A (en) | 1980-05-28 | 1980-05-28 | Operation controlling method for hydraulic machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56167867A true JPS56167867A (en) | 1981-12-23 |
| JPS632032B2 JPS632032B2 (en) | 1988-01-16 |
Family
ID=13419982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7003780A Granted JPS56167867A (en) | 1980-05-28 | 1980-05-28 | Operation controlling method for hydraulic machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56167867A (en) |
-
1980
- 1980-05-28 JP JP7003780A patent/JPS56167867A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS632032B2 (en) | 1988-01-16 |
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