| 摘要 |
A rotary machine is provided with a casing and an atmosphere relief mechanism (20) for closing an opening (12) for atmospheric release formed in the casing and relieving pressure of inner fluid to atmosphere when a pressure in the casing rises. The atmosphere relief mechanism includes: a rupture disc (24) configured to rupture when the pressure in the casing reaches a predetermined pressure; a pair of annular holding parts (22, 27) arranged to hold an outer edge of the rupture disc from both sides; a plurality of fastening members (29) for fastening the pair of annular holding parts to each other so as to hold the rupture disc between the pair of annular holding parts; and an annular spacer part (25) provided along an outer circumference of the rupture disc. |
