JPS55151177A - Operation control system for jet pump used for supplying air to draft tube in water wheel plant - Google Patents
Operation control system for jet pump used for supplying air to draft tube in water wheel plantInfo
- Publication number
- JPS55151177A JPS55151177A JP5952579A JP5952579A JPS55151177A JP S55151177 A JPS55151177 A JP S55151177A JP 5952579 A JP5952579 A JP 5952579A JP 5952579 A JP5952579 A JP 5952579A JP S55151177 A JPS55151177 A JP S55151177A
- Authority
- JP
- Japan
- Prior art keywords
- water
- operation control
- water wheel
- jet
- wheel
- 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)
- Control Of Water Turbines (AREA)
Abstract
PURPOSE: To prevent waste of high-pressure water flowing through pressure pipe while keeping a required amount of air to be supplied to water wheel, through provision of a jet-pump operation control valve which is capable of controlling the flow of driving water to be supplied to jet pump in response to change in water head.
CONSTITUTION: As the characteristics of water wheel, in an operational range in which it is not necessary to supply air to draft tube 6 connected to water-wheel casing or in the state that operation of water wheel is stopped, jet-pump operation control valve 10 is kept in its fully closed position. In this state, if water wheel comes into operation requiring air supply under a low water head, electromagnetic selector valves 15, 16 are turned ON and piston 11a of servomotor 11 pushes piston 12a of servomotor 12 upward by the aid of pilot valve 13, so that valve 10 is shifted to its fully opened position. Subsequently, when water head becomes high, valves 15, 16 are both turned ON. Resultnatly, valve 10 is shifted to its half-opened position, so that driving water flow to jet pump 7 is restricted.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5952579A JPS55151177A (en) | 1979-05-15 | 1979-05-15 | Operation control system for jet pump used for supplying air to draft tube in water wheel plant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5952579A JPS55151177A (en) | 1979-05-15 | 1979-05-15 | Operation control system for jet pump used for supplying air to draft tube in water wheel plant |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55151177A true JPS55151177A (en) | 1980-11-25 |
JPS6214713B2 JPS6214713B2 (en) | 1987-04-03 |
Family
ID=13115763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5952579A Granted JPS55151177A (en) | 1979-05-15 | 1979-05-15 | Operation control system for jet pump used for supplying air to draft tube in water wheel plant |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55151177A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01130065A (en) * | 1987-11-12 | 1989-05-23 | Fuji Electric Co Ltd | Jet pump for draft pipe air charging in water turbine |
JP2011220340A (en) * | 2010-04-13 | 2011-11-04 | Ur Rehman Alvi Mujeeb | Tunnel turbine system generating potential energy from dormant kinetic energy |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5390739U (en) * | 1976-12-27 | 1978-07-25 |
-
1979
- 1979-05-15 JP JP5952579A patent/JPS55151177A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5390739U (en) * | 1976-12-27 | 1978-07-25 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01130065A (en) * | 1987-11-12 | 1989-05-23 | Fuji Electric Co Ltd | Jet pump for draft pipe air charging in water turbine |
JP2011220340A (en) * | 2010-04-13 | 2011-11-04 | Ur Rehman Alvi Mujeeb | Tunnel turbine system generating potential energy from dormant kinetic energy |
Also Published As
Publication number | Publication date |
---|---|
JPS6214713B2 (en) | 1987-04-03 |
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