JPS62108573U - - Google Patents
Info
- Publication number
- JPS62108573U JPS62108573U JP1985201977U JP20197785U JPS62108573U JP S62108573 U JPS62108573 U JP S62108573U JP 1985201977 U JP1985201977 U JP 1985201977U JP 20197785 U JP20197785 U JP 20197785U JP S62108573 U JPS62108573 U JP S62108573U
- Authority
- JP
- Japan
- Prior art keywords
- seal structure
- runner
- gap
- hydraulic machine
- enlarged chamber
- 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
- 239000012530 fluid Substances 0.000 claims 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)
Description
第１図は本考案による水力機械のシール構造の
一実施例を示す垂直断面図、第２図は第１図の
―線に沿つた一部断面図、第３図は流量に対す
る体積効率の変化を示す図、第４図は本考案によ
る水力機械のシール構造の他の実施例を示す垂直
断面図、第５図は第４図の方向一部矢視図、第
６図は流量に対する体積効率の変化を示す図、第
７図はフランシス水車を示す一部断面図、第８図
は従来のシール構造を示す垂直断面図である。
４……ランナ、６……上カバー、７……下カバ
ー、８，９……シール部、１０……間隙、１０ａ
……第１段シール部、１０ｂ……第２段シール部
、１１……環状拡大室、１２，１３……放射状リ
ブ。
Fig. 1 is a vertical cross-sectional view showing an embodiment of the seal structure for hydraulic machinery according to the present invention, Fig. 2 is a partial cross-sectional view taken along the line - in Fig. 1, and Fig. 3 is a change in volumetric efficiency with respect to flow rate. FIG. 4 is a vertical sectional view showing another embodiment of the seal structure for a hydraulic machine according to the present invention, FIG. 5 is a partial view taken in the direction of FIG. 4, and FIG. 7 is a partial sectional view showing a Francis turbine, and FIG. 8 is a vertical sectional view showing a conventional seal structure. 4...Runner, 6...Upper cover, 7...Lower cover, 8, 9...Seal portion, 10...Gap, 10a
. . . First stage seal portion, 10b… Second stage seal portion, 11… Annular expansion chamber, 12, 13… Radial rib.
Claims (1)
状の拡大室を形成し、上記隙間内の流体の流れを
妨げるようにした水力機械のシール構造において
、上記拡大室内の複数の放射状リブを円周方向に
所定の間隔で上記ランナまたはカバーのいずれか
一方に立設したことを特徴とする水力機械のシー
ル構造。 In a seal structure for a hydraulic machine in which an annular enlarged chamber is formed in the middle of a gap between a runner and a cover covering the runner, and the flow of fluid within the gap is obstructed, a plurality of radial ribs in the enlarged chamber are arranged in a circumferential direction. A seal structure for a hydraulic machine, characterized in that the seal structure is installed on either the runner or the cover at predetermined intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985201977U JPS62108573U (en) | 1985-12-25 | 1985-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985201977U JPS62108573U (en) | 1985-12-25 | 1985-12-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62108573U true JPS62108573U (en) | 1987-07-10 |
Family
ID=31165934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985201977U Pending JPS62108573U (en) | 1985-12-25 | 1985-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62108573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020084799A (en) * | 2018-11-16 | 2020-06-04 | 株式会社東芝 | Fluid machine, seal member and method for modifying fluid machine |
-
1985
- 1985-12-25 JP JP1985201977U patent/JPS62108573U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020084799A (en) * | 2018-11-16 | 2020-06-04 | 株式会社東芝 | Fluid machine, seal member and method for modifying fluid machine |
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