| 发明名称 |
VALVE CONTROL SYSTEM AND VALVE CONTROL METHOD FOR STEAM TURBINE |
| 摘要 |
A valve control system for a steam turbine that decrease in effective power as well as secure control stability in the event of an electric power system accident is provided.;A valve control system for a steam turbine includes an accident detection unit 44 which detects an occurrence of an electric power system accident, a first selection unit 45 which selects, from a plurality of control valves 13 (13a˜13d) which adjust a volume of steam flowing into a steam turbine, control valves 13 to be rapidly closed according to a scale of the accident detected, and a normal control circuit 11 which continues normal pressure or speed control by the control valves 13 which are not selected. |
| 申请公布号 |
US2015378369(A1) |
申请公布日期 |
2015.12.31 |
| 申请号 |
US201414768544 |
申请日期 |
2014.02.18 |
| 申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
NAKATA Norihito;AOKI Toshio;MATSUMOTO Masaaki |
| 分类号 |
G05D7/06;F01K13/02 |
主分类号 |
G05D7/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A valve control system for a steam turbine comprising:
an accident detection unit which detects an occurrence of an electric power system accident; a first selection unit which selects, from a plurality of control valves which adjust a volume of steam flowing into a steam turbine, control valves to be rapidly closed according to a scale of the accident detected; and a normal control circuit which continues normal pressure or speed control by the control valves which are not selected. |
| 地址 |
Minato-Ku, Tokyo JP |
