JPS5564162A - Corrosion prevention of water-immersed parts of hydraulic machine - Google Patents
Corrosion prevention of water-immersed parts of hydraulic machineInfo
- Publication number
- JPS5564162A JPS5564162A JP13581978A JP13581978A JPS5564162A JP S5564162 A JPS5564162 A JP S5564162A JP 13581978 A JP13581978 A JP 13581978A JP 13581978 A JP13581978 A JP 13581978A JP S5564162 A JPS5564162 A JP S5564162A
- Authority
- JP
- Japan
- Prior art keywords
- water
- runner chamber
- modification operation
- phase modification
- air
- 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.)
- Pending
Links
- 238000005536 corrosion prevention Methods 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 7
- 230000004048 modification Effects 0.000 abstract 5
- 238000012986 modification Methods 0.000 abstract 5
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
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 replace the water with a large content of air in a runner chamber with ordinary river water for preventing the corrosion of water-immersed parts when having stopped a main unit after the phase modification operation thereof for example in which the main unit is let down into the water in the runner chamber.
CONSTITUTION: The phase modification operation of a hydraulic machine in which a generating motor 2 nad starting motor 3 are connected to a liner 1 by a main shaft 4 is performed, with an inlet valve 8 and a movable guide blade 6 totally closed and the water in a runner chamber pushed down to a set level by feeding compressed air to the runner chamber from an air supply valve 10. For stopping the a main unit after phase modification operation, the pressure water in a casing 7 is led into the runner chamber by opening the inlet valve 8 and movable guide blade 6 immediately after the stop of phase modification operation. After phase modification operation, air discharge is performed, and a runner 1 rotates in water so that the water with a large content of air may not remain in the runner chamber.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13581978A JPS5564162A (en) | 1978-11-06 | 1978-11-06 | Corrosion prevention of water-immersed parts of hydraulic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13581978A JPS5564162A (en) | 1978-11-06 | 1978-11-06 | Corrosion prevention of water-immersed parts of hydraulic machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5564162A true JPS5564162A (en) | 1980-05-14 |
Family
ID=15160538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13581978A Pending JPS5564162A (en) | 1978-11-06 | 1978-11-06 | Corrosion prevention of water-immersed parts of hydraulic machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5564162A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4492514A (en) * | 1980-08-18 | 1985-01-08 | Stang Hydronics Inc. | Submerged pump assembly and method of making and using same |
-
1978
- 1978-11-06 JP JP13581978A patent/JPS5564162A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4492514A (en) * | 1980-08-18 | 1985-01-08 | Stang Hydronics Inc. | Submerged pump assembly and method of making and using same |
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