发明名称 |
SHAFT SEALING DEVICE, AND ROTARY MACHINE EQUIPPED THEREWITH |
摘要 |
This shaft sealing device and rotary machine equipped therewith are provided with: a sealing body (12) configured by stacking, in the circumferential direction of a rotating shaft (6), a plurality of thin sealing pieces (20) extending from a housing (9) towards the inside of the rotation shaft (6) in the radial direction; and a low-pressure-side side sealing plate (17) which is arranged along the low-pressure side of the sealing body (12) and in which a plate surface (17d) facing the low-pressure side is pressed against the inner wall surface (9e) of the housing (9) by means of the fluid pressure applied from the high-pressure side to the low-pressure side, the aforementioned inner wall surface (9e) facing the axis line direction. A protrusion (9f) for blocking the downward flow (9) towards the inside of the low-pressure-side side sealing plate (17) in the radial direction along the low-pressure side of the sealing body (12) is formed on the inside of the low-pressure-side side sealing plate (17) in the radial direction, and a communication path (9g) for guiding, to a low-pressure-side region, the downward flow (d) blocked by means of the protrusion (9f) is formed on the housing (9). |
申请公布号 |
EP2660430(A4) |
申请公布日期 |
2014.06.25 |
申请号 |
EP20110854206 |
申请日期 |
2011.12.20 |
申请人 |
MITSUBISHI HEAVY INDUSTRIES, LTD. |
发明人 |
SHINOHARA TANEHIRO;UEHARA HIDEKAZU;NISHIMOTO SHIN;NAKANO TAKASHI |
分类号 |
F01D11/02;F01D11/00;F02C7/28;F16J15/22;F16J15/32;F16J15/44;F16J15/54 |
主分类号 |
F01D11/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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