Dual trip manifold assembly for turbine systems
First Claim
Patent Images
1. An emergency overspeed protection system comprising:
- at least one trip manifold assembly (TMA) comprising a fluid supply header and a trip header coupled in flow communication to said fluid supply header; and
an isolation valve assembly comprising;
a first valve configured to receive a flow of fluid from a hydraulic system fluid supply, said first valve coupled in flow communication to said fluid supply header; and
a second valve coupled in flow communication to said trip header, said second valve configured to receive the flow of fluid from said trip header,wherein said first valve and said second valve are coupled to each other such that closing said first valve with respect to said at least one TMA causes said second valve to close with respect to said at least one TMA, thereby isolating said at least one TMA from the flow of fluid.
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Abstract
A dual trip manifold assembly (TMA) includes an isolation valve assembly having a first valve configured to receive a flow of fluid from a hydraulic system fluid supply. The first valve is configured to channel the flow of fluid to at least one hydraulic circuit. The isolation valve assembly also includes a second valve configured to receive the flow of fluid from the at least one hydraulic circuit. The second valve is further configured to channel the fluid flow to a trip header. The first valve and the second valve are synchronized to each other such that rotation of one valve causes a substantially similar rotation in the other valve.
17 Citations
11 Claims
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1. An emergency overspeed protection system comprising:
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at least one trip manifold assembly (TMA) comprising a fluid supply header and a trip header coupled in flow communication to said fluid supply header; and an isolation valve assembly comprising; a first valve configured to receive a flow of fluid from a hydraulic system fluid supply, said first valve coupled in flow communication to said fluid supply header; and a second valve coupled in flow communication to said trip header, said second valve configured to receive the flow of fluid from said trip header, wherein said first valve and said second valve are coupled to each other such that closing said first valve with respect to said at least one TMA causes said second valve to close with respect to said at least one TMA, thereby isolating said at least one TMA from the flow of fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification