| 摘要 |
A liquid-sealing shaft seal apparatus includes a rotation shaft (1), brush seals (4a, 4b) arranged in such a manner as to contact and surround the rotation shaft (1), and a brush holder (3) which holds the brush seals (4a, 4b), wherein more than one line of the brush seals are arranged in the axial direction of the rotation shaft through a cavity (10), and the brush holder (3) is provided with a liquid returning pass (12) to return a liquid having leaked through the brush seals (4a, 4b) into the cavity (10) to the side of an atmosphere (S1) in which a liquid is present as a sealing target. |
