SHAFT SEALING DEVICE, ROTATING MACHINE, AND METHOD FOR MANUFACTURING SHAFT SEALING DEVICE

摘要

A shaft sealing device (10) includes a plurality of leaves (20) that is arranged in a periphery of a rotating shaft (50) and divides a space around the rotating shaft into two spaces in an axial direction of the rotating shaft, and a side seal plate that is arranged on one side of the leaf in the axial direction and has an opposite surface facing a side end on one side of the leaf. The leaf and/or the side seal plate has a friction reducing portion for reducing a friction force between the opposite surface and a surface of the side end.

主权项

1. A shaft sealing device comprising:
a plurality of leaves that is arranged in a circumferential direction of a rotating shaft and divides a space around the rotating shaft into two spaces in an axial direction of the rotating shaft; and a side seal plate that is arranged on one side of the plurality of leaves in the axial direction and includes an opposite surface facing a side end on the one side of the plurality of leaves, wherein the opposite surface of the plurality of leaves includes a friction reducing portion configured to reduce a friction force between the opposite surface and a surface of the side end, and wherein the friction reducing portion includes a film with a low friction coefficient formed on an entire surface of the opposite surface.