发明名称 |
Control Device and Method for a Quick-Acting Gate Valve of a Steam Turbine |
摘要 |
A control device for a quick-closing valve of a steam turbine including a relief valve for reducing a hydraulic pressure opening the quick-closing valve, and a relief valve control valve arrangement having at least three valves which are hydraulically interconnected with the relief valve in such a way that the relief valve does not close the quick-closing valve unless at least two valves of the relief valve control valve arrangement are switched to a quick-closing position. The system includes a test control valve arrangement for selectively reducing and increasing the hydraulic pressure opening the quick-closing valve when the relief valve is closed.
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申请公布号 |
US2011072821(A1) |
申请公布日期 |
2011.03.31 |
申请号 |
US20090993944 |
申请日期 |
2009.05.19 |
申请人 |
MAN DIESEL & TURBO SE |
发明人 |
POTTEN CHRISTIAN;HENNECKE HOLGER |
分类号 |
F01D21/00;F16K15/00;G01M15/00 |
主分类号 |
F01D21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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