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    Inlet screen for a hydropower plant
    16.
    发明授权
    Inlet screen for a hydropower plant 有权

    公开(公告)号：US11898529B2

    公开(公告)日：2024-02-13

    申请号：US16759889

    申请日：2018-11-06

    Applicant: FASSELAND MEKANISKE VERKSTED AS

    Inventor： Johan Arnt Fasseland

    IPC: F03B11/08 ,  B01D29/44 ,  B01D29/60 ,  B01D35/18

    CPC classification number: F03B11/08 ,  B01D29/445 ,  B01D29/608 ,  B01D35/18

    Abstract: The present invention relates to an inlet screen adapted to be arranged at the water inlet (8) of a hydropower plant and comprises a plurality of elongated bars (20), said bars (20) being separated by a distance holding means, each elongated bar (20) having in its elongation a proximal portion and a distal portion, and an upstream region and a downstream region, said upstream and downstream regions being at an angle in relation to said proximal and distal portions, at least one of said bars (20) defining a space (36; 36a) extending along at least a portion of the elongation of said bar (20), said bar (20) being provided with an electric heating means (31). In accordance with the invention, said elongated bar has an elongated intermediate portion (38a), said space (36; 36a) being defined in either of the upstream region (35a) and the downstream region (35b), said intermediate portion (38a) extending along the elongation of the bar (20) between the upstream region (35a) and the downstream region (35b), said electric heating means (31) comprising at least one electric heating member (37) being introduced into said space (36; 36a).

    HYDROELECTRIC POWER GENERATION APPARATUS AND POWER GENERATION SYSTEM
    17.
    发明申请
    HYDROELECTRIC POWER GENERATION APPARATUS AND POWER GENERATION SYSTEM 审中-公开

    公开(公告)号：US20180223792A1

    公开(公告)日：2018-08-09

    申请号：US15771997

    申请日：2016-10-03

    Applicant: NTN CORPORATION

    Inventor： Yasuyuki FUJITA ,  Tomoya KAWAI

    IPC: F03B15/16 ,  F03B11/00 ,  F03B17/06

    CPC classification number: F03B15/16 ,  F03B11/008 ,  F03B11/08 ,  F03B13/22 ,  F03B13/264 ,  F03B15/18 ,  F03B17/061 ,  F03B17/062 ,  F05B2270/20 ,  F05B2270/327 ,  Y02E10/28

    Abstract: A hydroelectric power generation apparatus includes a braking force generation unit configured to apply a braking force to rotation of a hydraulic turbine, and a controller configured to control the braking force generation unit to repeat increasing and decreasing the braking force to vary a rotational speed of the hydraulic turbine. Varying the rotational speed of the hydraulic turbine helps to flow away debris and the like adhering to hydraulic turbine blades. Preferably, the braking force generation unit includes an electrical, mechanical or fluid type braking device configured to apply a braking force to a rotary shaft of the hydraulic turbine. Preferably, the braking force generation unit includes a power generator configured to generate power through rotation of the hydraulic turbine, and the controller increases/decreases the braking force by varying power extracted from the power generator.

    TURBINE ASSEMBLY, AND KIT WITH COMPONENTS FOR ASSEMBLING THE SAME
    20.
    发明申请
    TURBINE ASSEMBLY, AND KIT WITH COMPONENTS FOR ASSEMBLING THE SAME 审中-公开
    涡轮组件，以及装配组件的组件

    公开(公告)号：US20130341930A1

    公开(公告)日：2013-12-26

    申请号：US13992841

    申请日：2011-12-12

    Applicant: Marc Campagna

    Inventor： Marc Campagna

    IPC: F01D15/10

    CPC classification number: F01D15/10 ,  F03B3/04 ,  F03B3/18 ,  F03B11/08 ,  F03B13/105 ,  F03D1/02 ,  F03D1/04 ,  F03D9/25 ,  F03D13/10 ,  F05B2210/16 ,  F05B2240/133 ,  Y02E10/22 ,  Y02E10/223 ,  Y02E10/226 ,  Y02E10/28 ,  Y02E10/725

    Abstract: A turbine assembly for generating electricity from kinetic energy of a moving fluid flow. The turbine assembly includes an elongated casing defining a fluid channel through which the fluid flow is allowed to travel, as well as an inlet and an outlet for respectively receiving and releasing the fluid flow to and from the fluid channel. The assembly also includes a main rotor contained within the casing and intersecting the fluid channel, the main rotor being rotatably moveable with respect to the casing via a pivoting component. The main rotor has a closed-loop arrangement provided with a plurality of rotor vanes each defining a neighbouring closed-loop rotor passage, the main rotor being rotatably driven via the passage of fluid flow through its closed-loop arrangement, and the closed-loop arrangement being further configured for imparting a forced rotational movement to the fluid flow exiting from the main rotor. The assembly also includes a main generator being operatively connectable to the main rotor and being driven by a rotation of the main rotor, in order to generate electricity, the main generator being contained within the casing and being positioned within the casing via a supporting component so as to be placed in a vortex region defined by the forced rotational movement of the fluid flow exiting the main rotor.

    Abstract translation: 一种用于通过运动流体流的动能产生电力的涡轮组件。 涡轮组件包括限定流体通道的细长壳体，流体流通过该通道，以及用于分别接收和释放流体流体流出流体流体的入口和出口。 组件还包括容纳在壳体内并与流体通道相交的主转子，主转子经由枢转部件相对于壳体可旋转地运动。 主转子具有设置有多个转子叶片的闭环装置，每个转子叶片限定相邻的闭环转子通道，主转子经由流体流过其闭环装置的通道被可旋转地驱动，并且闭环 进一步构造为用于对从主转子排出的流体流进行强制旋转运动。 组件还包括主发电机，其可操作地连接到主转子并且被主转子的旋转驱动，以便发电，主发电机被容纳在壳体内并且经由支撑部件定位在壳体内 被放置在由离开主转子的​​流体流的强制旋转运动限定的涡流区域中。

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