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    Turbomachine with mixed-flow stage and method
    8.
    发明公开
    Turbomachine with mixed-flow stage and method 审中-公开
    带有混合流动阶段和方法的涡轮机

    公开(公告)号：EP2423510A3

    公开(公告)日：2017-12-13

    申请号：EP11179038.2

    申请日：2011-08-26

    申请人： Nuovo Pignone S.p.A.

    发明人： Bergamini, Lorenzo ,  Michelassi, Vittorio

    IPC分类号： F04D3/00 ,  F04D13/12 ,  F04D29/18 ,  F04D29/22 ,  F04D31/00

    CPC分类号： F04D31/00 ,  F04D3/00 ,  F04D7/04 ,  F04D13/12 ,  F04D29/181 ,  F04D29/183 ,  F04D29/22

    摘要： Method and turbomachine for imparting energy to a multiphase fluid. The turbomachine includes a casing having an inlet and an outlet; an axial stage part including at least one axial stage; a mixed-flow stage part including at least one mixed-flow stage fluidly connected to the axial stage part; and a centrifugal stage part including at least one centrifugal stage fluidly connected to the mixed-flow stage part. The axial stage is defined by an angle between an axial impeller outlet flow and an axis parallel to a rotational axis of the shaft having a value between 0° and 5°, the mixed-flow stage by an angle having a value between 5° and 80°, and the centrifugal stage by an angle having a value between 80° and 90°.

    摘要翻译： 用于将能量传递给多相流体的方法和涡轮机械。 涡轮机包括具有入口和出口的壳体; 轴向级部分，其包括至少一个轴向级; 混流阶段部分，其包括流体连接至所述轴向阶段部分的至少一个混流阶段; 以及包括至少一个流体地连接到混流式平台部分的离心级的离心级部分。 轴向级由轴向叶轮出口流量与平行于轴的旋转轴线的轴线之间的角度限定，所述轴线具有介于0°和5°之间的值，混合流动级通过具有介于5°和5°之间的值的角度 80°，离心阶段的角度在80°和90°之间。

    Method for controlling the pressure dynamics and for estimating the life cycle of the combustion chamber of a gas turbine
    9.
    发明公开
    Method for controlling the pressure dynamics and for estimating the life cycle of the combustion chamber of a gas turbine 审中-公开
    用于控制压力动态特性和估算燃气轮机燃烧室寿命周期的方法

    公开(公告)号：EP1995519A3

    公开(公告)日：2017-07-26

    申请号：EP08156638.2

    申请日：2008-05-21

    申请人： Nuovo Pignone S.p.A.

    发明人： Asti, Antonio

    IPC分类号： F23N3/00 ,  F23N5/00

    摘要： A method is described for controlling the combustion in a gas turbine. The method comprises the phases of measuring, by means of one or more probes (30) situated in correspondence with the combustion chamber (14) of the turbine, the amplitude of the pressure oscillations inside the combustion chamber (14) and the persistence time or cycle of the same oscillations, evaluating the behaviour under fatigue conditions of the combustion chamber (14), by constructing the Wohler curve for a certain material which forms the combustion chamber (14) for a predefined combustion frequency and for the amplitude and cycle values of the pressure oscillations measured, measuring the cumulative damage (D) to the combustion chamber (14) during functioning under fatigue conditions of the turbine by means of the Palmgren-Miner hypothesis and exerting protection actions of the turbine if the cumulative damage value (D) measured is exceeded.

    摘要翻译： 描述了用于控制燃气轮机中的燃烧的方法。 该方法包括借助于与涡轮机的燃烧室（14）相对应地定位的一个或多个探测器（30）测量燃烧室（14）内的压力振荡的振幅和持续时间的阶段，或者 （14）的疲劳状态下的行为，通过针对形成燃烧室（14）的特定材料构造Wohler曲线达预定的燃烧频率以及振幅和周期值 测量压力振荡，通过Palmgren-Miner假设测量在涡轮疲劳条件下运行期间对燃烧室（14）的累积损伤（D），并且如果累积损伤值（D） 测量超过。