JPS57188775A - Water thrust reducing method at transition time of pump water wheel - Google Patents
Water thrust reducing method at transition time of pump water wheelInfo
- Publication number
- JPS57188775A JPS57188775A JP56072277A JP7227781A JPS57188775A JP S57188775 A JPS57188775 A JP S57188775A JP 56072277 A JP56072277 A JP 56072277A JP 7227781 A JP7227781 A JP 7227781A JP S57188775 A JPS57188775 A JP S57188775A
- Authority
- JP
- Japan
- Prior art keywords
- water
- automatic valve
- pressure chamber
- thrust
- load
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/06—Bearing arrangements
- F03B11/063—Arrangements for balancing axial thrust
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Turbines (AREA)
Abstract
PURPOSE:To reduce the water thrust caused by runner back pressure and the design load of a thrust bearing, by guiding the pressurized water staying in an iron pipe to a runner lateral pressure chamber when a transient phenomenon such as the interception of the load of a pump water wheel or the like occurs. CONSTITUTION:A back pressure chamber 1 is connected to a lateral pressure chamber 3 through a balance tube 4, and on the way of this connecting route, an automatic valve 15 is interposed, while an automatic valve 14 is also interposed on a water supply tube 13 by which the balance tube 4 and a container 7 are connected to each other. A back pressure chamber 2 is connected to a draft pipe 9 by a balance tube 5. Under normal conditions, the automatic valve 14 is closed and the automatic valve 15 is opened by a control device not figured. But, in the case that a water thrust is generated when a transient condittion such as the interception of load or the like occurs, the automatic valve 14 is opened and the automatic valve 15 is closed, and then the water pressure in the iron pipe is guided to the lateral pressure chamber 3. Thereby, the water thrust during the transition period is reduced to the normal water thrust or below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56072277A JPS57188775A (en) | 1981-05-15 | 1981-05-15 | Water thrust reducing method at transition time of pump water wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56072277A JPS57188775A (en) | 1981-05-15 | 1981-05-15 | Water thrust reducing method at transition time of pump water wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57188775A true JPS57188775A (en) | 1982-11-19 |
Family
ID=13484623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56072277A Pending JPS57188775A (en) | 1981-05-15 | 1981-05-15 | Water thrust reducing method at transition time of pump water wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57188775A (en) |
-
1981
- 1981-05-15 JP JP56072277A patent/JPS57188775A/en active Pending
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