JP6567802B2 - 水車の主軸封水装置および主軸封水方法 - Google Patents
水車の主軸封水装置および主軸封水方法 Download PDFInfo
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- JP6567802B2 JP6567802B2 JP2014055149A JP2014055149A JP6567802B2 JP 6567802 B2 JP6567802 B2 JP 6567802B2 JP 2014055149 A JP2014055149 A JP 2014055149A JP 2014055149 A JP2014055149 A JP 2014055149A JP 6567802 B2 JP6567802 B2 JP 6567802B2
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- main shaft
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 105
- 238000007789 sealing Methods 0.000 title claims description 34
- 238000000034 method Methods 0.000 title claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 238000012856 packing Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Classifications
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- 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
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- Hydraulic Turbines (AREA)
Description
2 ラビリンスシール
2a ラビリンス溝
2b エアポケット
3 シールカバー体
4 エアコンプレッサ(圧縮空気供給手段)
101 主軸
W 漏水
Claims (4)
- 水車の主軸からの漏水を防止する、水車の主軸封水装置であって、
前記主軸が挿入される筒状で、内周面にリング状のラビリンス溝が軸方向に複数形成され、前記ラビリンス溝の下流側の内周面に凹状で周方向に延びるエアポケットが設けられたラビリンスシールと、
前記水車の回転とは独立して圧縮空気を生成し、該圧縮空気を前記エアポケットに供給することで前記エアポケット内を昇圧する圧縮空気供給手段と、
を備え、前記水車の稼働状態に係らず前記圧縮空気供給手段が常時稼働され、前記水車の停止時であっても常に前記エアポケット内が昇圧されて該エアポケットよりも下流側への漏水を防止することを特徴とする水車の主軸封水装置。 - 前記圧縮空気供給手段は、前記エアポケット内の圧力を調整可能となっている、
ことを特徴とする請求項1に記載の水車の主軸封水装置。 - 水車の主軸からの漏水を防止する、水車の主軸封水方法であって、
筒状で内周面にリング状のラビリンス溝が軸方向に複数形成され、前記ラビリンス溝の下流側の内周面に凹状で周方向に延びるエアポケットが設けられたラビリンスシールに、前記主軸を挿入し、
前記水車の回転とは独立して圧縮空気を生成する圧縮空気供給手段を前記水車の稼働状態に係らず常時稼働して、前記水車の停止時であっても常に前記圧縮空気を前記エアポケットに供給することで前記エアポケット内を昇圧し、該エアポケットよりも下流側への漏水を防止する、
ことを特徴とする水車の主軸封水方法。 - 前記主軸と前記ラビリンスシールとの隙間の大きさを含む漏水条件に基づいて、前記エアポケット内の圧力を調整する、
ことを特徴とする請求項3に記載の水車の主軸封水方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2014055149A JP6567802B2 (ja) | 2014-03-18 | 2014-03-18 | 水車の主軸封水装置および主軸封水方法 |
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JP2014055149A JP6567802B2 (ja) | 2014-03-18 | 2014-03-18 | 水車の主軸封水装置および主軸封水方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015175366A JP2015175366A (ja) | 2015-10-05 |
JP6567802B2 true JP6567802B2 (ja) | 2019-08-28 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2014055149A Active JP6567802B2 (ja) | 2014-03-18 | 2014-03-18 | 水車の主軸封水装置および主軸封水方法 |
Country Status (1)
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JP (1) | JP6567802B2 (ja) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51353U (ja) * | 1974-06-19 | 1976-01-06 | ||
JPS5747782U (ja) * | 1980-08-30 | 1982-03-17 | ||
JPS58113664A (ja) * | 1981-12-26 | 1983-07-06 | Toshiba Eng Co Ltd | 水力機械の軸封水方法 |
JPH09133094A (ja) * | 1995-11-09 | 1997-05-20 | Mitsubishi Heavy Ind Ltd | ターボ機械 |
JPH10196509A (ja) * | 1997-01-08 | 1998-07-31 | Toshiba Corp | フランシス水車 |
JP2010248936A (ja) * | 2009-04-13 | 2010-11-04 | Tokyo Electric Power Co Inc:The | ラビリンス型封水装置 |
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