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公开(公告)号：WO2017060228A1
公开(公告)日：2017-04-13
申请号：PCT/EP2016/073652
申请日：2016-10-04
Applicant: NUOVO PIGNONE TECNOLOGIE SRL
Inventor： PIERI, Marco
Abstract: A valve assembly for use to regulate a flow of steam in a flowpath of a turbine. The valve assembly can be configured with a body 200 that circumscribes a rotor. The body is disposed upstream of the rotor blades. In one implementation, the body forms an annular ring with a plurality of arcuate segments202, 204, 206, each being configured to move independently of the other segments in the ring to change the size of an annular gap between the arcuate segments and the rotor. The size of the annular gap corresponds with flow parameters for working fluid that flows across the rotor and that exits the turbine for use in pre-heaters and like collateral equipment.
Abstract translation: 一种用于调节涡轮流路中蒸汽流量的阀组件。 阀组件可以配置有外接转子的主体200。 主体设置在转子叶片的上游。 在一个实施方式中，主体形成具有多个弓形段202,204,206的环形环，每个弧形段都被构造成独立于环中的其它段移动以改变弧形段和转子之间的环形间隙的尺寸。 环形间隙的尺寸对应于流过转子的工作流体的流动参数，并且离开涡轮以用于预热器和类似的辅助设备。
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公开(公告)号：WO2019007907A1
公开(公告)日：2019-01-10
申请号：PCT/EP2018/067810
申请日：2018-07-02
Applicant: NUOVO PIGNONE TECNOLOGIE SRL
Inventor： PIERI, Marco
Abstract: The sealing system (1) for a machine comprises: a sealing element (4) that is movable back and forth along a direction (D) and that comprises a first recess (41) with first and second surfaces (42, 43), a component (2) of an assembly of the machine that comprises a second recess (21) with first and second surfaces (22, 23), and an elastic element (5). The first and second recesses (41, 21) face each other. The elastic element (5) is partially housed inside the first recess (41) and partially housed inside the second recess (21) so to apply forces on the first and second surfaces (42, 22, 43, 23) depending on where the sealing element (4) is positioned with respect to the component (2).
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