| 发明名称 |
STEAM VALVE |
| 摘要 |
In a steam valve, a seat-side convexly curved surface (35b) of a valve body (30) is configured such that the average radius of curvature Rv from a starting end portion (35c) on the upstream side in a flow direction of steam to a termination end portion (35a) has a relationship of Rv<Rs with respect to the radius of curvature Rs of a valve-seat-side convexly curved surface (26a); the seat-side convexly curved surface (35b) is formed with an upstream-side curved surface (36) and a downstream-side curved surface (37); the seat-side convexly curved surface (35b) has an abutting area (35s) abutting a valve seat portion (26); and the radius of curvature R1 of the downstream-side curved surface (37) has a relationship of Rs<R1 with respect to the radius of curvature Rs in the flow direction of the steam. |
| 申请公布号 |
EP2985423(A1) |
申请公布日期 |
2016.02.17 |
| 申请号 |
EP20130886825 |
申请日期 |
2013.12.27 |
| 申请人 |
MITSUBISHI HITACHI POWER SYSTEMS, LTD. |
发明人 |
HAMADA KATSUHISA;FUTAHASHI KENSUKE |
| 分类号 |
F01D17/10;F01D17/14;F01D17/18;F01D17/26;F01D25/00;F16K1/36;F16K1/42;F16K1/54 |
主分类号 |
F01D17/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
