JPS55146274A - Water turbine runner - Google Patents
Water turbine runnerInfo
- Publication number
- JPS55146274A JPS55146274A JP5418979A JP5418979A JPS55146274A JP S55146274 A JPS55146274 A JP S55146274A JP 5418979 A JP5418979 A JP 5418979A JP 5418979 A JP5418979 A JP 5418979A JP S55146274 A JPS55146274 A JP S55146274A
- Authority
- JP
- Japan
- Prior art keywords
- runner
- vibration
- turbine
- damping material
- shrouded
- 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
-
- 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 prevent a runner from being damaged by a method wherein a damping material is stuck on to the outer periphery of the runner to curb the vibration in the axial direction and thereby reduce a vibration stress concentrating on the part of joint of a blade in a pump wheel and a turbine.
CONSTITUTION: In the runner of a turbine having a large capacity and rotating at a high speed, a crown 1 and a shrouded ring 3 strongly vibrate in the axial direction by hydraulic pulsations, whereby the vibration stress occurs intensively in the part of joint of a blade 2. This vibration is damped by a damping material 54 stuck on to the outer periphery of the crown 1 and the shrouded ring 3, thereby the occuring vibration stress being reduced. As the damping material 54, synthetic resin or the stuff made beforehand of viscous and elastic materials is used, the former being molded into the objective place, while the latter being laminated in one or several layers thereon by sticking. In this way, a turbine runner bearable to high head and high speed can be obtained without a substantial change in the form of the exisiting machines.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5418979A JPS55146274A (en) | 1979-05-04 | 1979-05-04 | Water turbine runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5418979A JPS55146274A (en) | 1979-05-04 | 1979-05-04 | Water turbine runner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55146274A true JPS55146274A (en) | 1980-11-14 |
Family
ID=12963590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5418979A Pending JPS55146274A (en) | 1979-05-04 | 1979-05-04 | Water turbine runner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55146274A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130170993A1 (en) * | 2012-01-04 | 2013-07-04 | Jeff H. Miller | Blade shroud for fluid element |
| CN108843478A (en) * | 2018-06-20 | 2018-11-20 | 国家电网有限公司 | A kind of method of turbine runner blade karman vortex resonance repairing type |
-
1979
- 1979-05-04 JP JP5418979A patent/JPS55146274A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130170993A1 (en) * | 2012-01-04 | 2013-07-04 | Jeff H. Miller | Blade shroud for fluid element |
| US9022742B2 (en) * | 2012-01-04 | 2015-05-05 | Aerojet Rocketdyne Of De, Inc. | Blade shroud for fluid element |
| CN108843478A (en) * | 2018-06-20 | 2018-11-20 | 国家电网有限公司 | A kind of method of turbine runner blade karman vortex resonance repairing type |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3911652A (en) | Safety blade for rotary lawn mowers | |
| ES460983A1 (en) | Pump impeller | |
| EP0142370A3 (en) | Reel assembly for slot machines | |
| JPS55146274A (en) | Water turbine runner | |
| JPS5728810A (en) | Fluid turbine | |
| JPS55146275A (en) | Water turbine runner | |
| CA2023330A1 (en) | Method for making elastomeric sealing device | |
| JPS5781191A (en) | Method and device of improving characteristic of blower or the like | |
| FR2373731A1 (en) | Plastic gear wheel moulded around radially ribbed metal hub - formed from sheet metal with radial ribs embedded in plastics wheel body | |
| GB1488975A (en) | Flexible hose of high pressure-bearing capability and process for the production thereof | |
| JPS5510115A (en) | Mechanical seal | |
| JPS5746068A (en) | Generator and driving device for generator of fluid rotary disc type by use of either wind force or wave force | |
| JPS57197066A (en) | Apparatus for lining mortar to pipe member | |
| JPS6110056Y2 (en) | ||
| JPS569666A (en) | Water pressure balancing device for hydraulic machine | |
| JPS5380632A (en) | Drive propelling shaft for automotive | |
| JPS525412A (en) | Variable type vibrating motor | |
| JPS54159562A (en) | Spiral groove shaft | |
| JPS5649645A (en) | Small-sized molded motor | |
| JPS54128897A (en) | Superfinishing | |
| JPS5432880A (en) | Centrifugal gas separator | |
| JPS5538626A (en) | Rotating magnetic head unit | |
| RU1772430C (en) | Intake of screw-centrifugal pump | |
| JPS5511011A (en) | Defoaning vane in mechanical defoaming apparatus | |
| JPS5514370A (en) | Oil seal |