蒸汽涡轮控制装置

Abstract

A steam turbine control device according to the present invention is equipped with a first valve (5), a second valve (7), a first valve controller (25), a second valve controller (27), and a valve control adjustment unit (30). The first valve (5) is provided to a first steam supply passage (8) connected to a steam turbine (3). The second valve (7) is provided to a second steam supply passage (9) which bypasses the first valve (5) upstream along the first steam supply passage (8), and which is connected further towards the low-pressure side of the steam turbine (3) than the first steam supply passage (8). The first valve controller (25) controls the opening of the first valve (5) on the basis of flow-rate information (A) indicating the flow rate of the steam to be conveyed to the steam turbine (3). The second valve controller (27) controls the opening of the second valve (7) on the basis of the flow-rate information (A). The valve control adjustment unit (30) adjusts the opening control of the second valve (7) implemented by the second valve controller (27).
本发明的蒸汽涡轮控制装置具备第一阀(5)、第二阀(7)、第一阀控制部(25)、第二阀控制部(27)以及阀控制调整部(30)。第一阀(5)设置在与蒸汽涡轮(3)相连的第一蒸汽供给路径(8)中。第二阀(7)从第一蒸汽供给路径(8)上将第一阀(5)旁路,设置在与第一蒸汽供给路径(8)相比连接于蒸汽涡轮(3)的更低压侧的第二蒸汽供给路径(9)中。第一阀控制部(25)基于指示向蒸汽涡轮(3)输送的蒸汽的流量的流量信息(A),控制第一阀(5)的开度。第二阀控制部(27)基于所述流量信息(A),控制第二阀(7)的开度。阀控制调整部(30)对由第二阀控制部(27)进行的第二阀(7)的开度的控制加入调整。

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