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    • 46. 发明授权
    • Nozzle adjustment mechanism for variable-capacity turbine
    • 可变容量涡轮喷嘴调节机构
    • US06699010B2
    • 2004-03-02
    • US09853679
    • 2001-05-14
    • Yasuaki Jinnai
    • Yasuaki Jinnai
    • F04D1716
    • F16D1/06F01D17/16F01D17/165Y10T29/49323
    • A nozzle adjustment mechanism for a variable-capacity turbine has a connection between a connecting lever, for connecting a nozzle drive component driven by a actuator to a nozzle vane, and an edge of a nozzle shaft on the nozzle vane. The connection has a high degree of strength and does not experience deformation. A connecting hole of the connecting lever has a stopper surface which is flat or curved. The connecting edge of the nozzle shaft also has a stopper surface which corresponds to the stopper surface of the connecting hole. When the connecting edge of the nozzle shaft goes into the connecting hole of the connecting lever, the stopper surface of the connecting edge is brought into contact with the stopper surface of the connecting hole. After contact is made, a fixing process is applied to the connecting edge. The connector lever and the connecting edge of the nozzle shaft are thus effectively locked together in such a way that neither can rotate with respect to the other. The end of the nozzle shaft, in other words, prevents the shaft's rotation.
    • 用于可变容量涡轮机的喷嘴调节机构具有用于将由致动器驱动的喷嘴驱动部件连接到喷嘴叶片的连接杆与喷嘴叶片上的喷嘴轴的边缘之间的连接。 连接强度高,不会发生变形。 连接杆的连接孔具有平坦或弯曲的止动表面。 喷嘴轴的连接边缘也具有与连接孔的止动面相对应的止动面。 当喷嘴轴的连接边缘进入连接杆的连接孔时,连接边缘的止动面与连接孔的止动面接触。 接触后,对连接边缘进行定影处理。 因此,连接器杆和喷嘴轴的连接边缘以相对于另一个旋转的方式被有效地锁定在一起。 换句话说,喷嘴轴的端部防止轴旋转。
    • 47. 发明申请
    • Method and operational strategy for controlling variable stator vanes of a gas turbine power generator compressor component during under-frequency events
    • 在低频事件期间控制燃气轮机发电机压缩机部件的可变定子叶片的方法和操作策略
    • US20030011199A1
    • 2003-01-16
    • US09893608
    • 2001-06-29
    • Thomas Edward WickertBryan Edward Sweet
    • H02P009/04H02K007/18F02C006/00F01D015/10
    • F04D27/0246F01D15/10F01D17/14F01D17/16F02C9/20F05D2270/061F05D2270/304
    • A method is provided for controlling variable inlet and stator vanes of a heavy-duty gas turbine electrical power generator compressor component upon occurrence of power grid under-frequency events. Variable inlet guide vanes and the front four variable stator vanes of the compressor are ganged together by means of a common actuation mechanism. Altering the angle of the ganged vanes changes the overall airflow consumption of the compressor and affects the amount of turbine output power produced. Predetermined operational schedules for varying the angular position of the stator vanes in accordance with compressor speed are defined for both nominal and under-frequency operating conditions to ensure optimum compressor efficiency without violating minimum safe compressor surge margin criteria. During a power grid under-frequency event, the variable stator vanes of the compressor are operated in a manner that provides a smooth transition from the predetermined nominal operational schedule to the predetermined under-frequency operational schedule.
    • 提供一种用于在发生电力网频率事件时控制重型燃气轮机发电机压缩机部件的可变入口和定子叶片的方法。 压缩机的可变入口引导叶片和前四个可变定子叶片通过公共致动机构联接在一起。 改变组合叶片的角度会改变压缩机的总体气流消耗并影响所产生的涡轮机输出功率。 根据压缩机转速来定义用于改变定子叶片的角位置的预定操作计划,用于额定和低频操作条件,以确保最佳压缩机效率,而不会违反最小安全压缩机喘振裕度标准。 在电网欠频事件期间,压缩机的可变定子叶片以提供从预定的标称操作时间表到预定的低频操作时间表的平滑过渡的方式操作。
    • 49. 发明授权
    • Turbomachines having rogue vanes
    • 涡轮机有流氓叶片
    • US5730580A
    • 1998-03-24
    • US409437
    • 1995-03-24
    • David Japikse
    • David Japikse
    • F01D17/16F04D27/02F04D29/44F04D29/46F04D29/56
    • F04D29/462F01D17/16F04D27/00F04D27/02F04D29/448F04D29/563F05D2220/40
    • A turbomachine has a set of vanes in the airfoil cascade of its diffuser system. A first portion of the vanes are "rogue" vanes. A second portion of the vanes are "remaining" vanes. For a given flow through the vane set, the angle of incidence of the rogue vanes differs from the angle of incidence of the remaining normal vanes. The remaining vanes may be free-floating or positionable. The rogue vanes can be fixed or scheduled to dominate flow through the diffuser system, thereby improving efficiency of operation. Optionally, additional "intermediate" vanes can be disposed between the "rogue" vanes and the "remaining" vanes. In a centrifugal pump or compressor, the "rogue" vanes are positioned such that a preponderance of the flow will proceed through the impeller, subsequently through the rogue vanes, and then smoothly into the volute so that flow will pass smoothly through the system with minimum frictional effects and maximum pressure recovery. For centrifugal or axial turbomachines, the use of one or more sets of rogue vanes creates a "channelizing" effect of the flow throughout the entire turbomachine.
    • 涡轮机在其扩散器系统的翼型级联中具有一组叶片。 叶片的第一部分是“流氓”叶片。 叶片的第二部分是“剩余”叶片。 对于通过叶片组的给定流量,流氓叶片的入射角与剩余的普通叶片的入射角不同。 剩余的叶片可以是自由浮动的或可定位的。 流氓叶片可以固定或调度,以支配通过扩散系统的流动,从而提高操作效率。 任选地,附加的“中间”叶片可以设置在“流氓”叶片和“剩余”叶片之间。 在离心泵或压缩机中,“流氓”叶片被定位成使得流​​动的优势将通过叶轮进行,随后通过流氓叶片,然后平滑地进入蜗壳,使得流动将以最小的速度顺利地通过系统 摩擦效应和最大压力恢复。 对于离心式或轴向涡轮机,使用一套或多组流氓叶片会在整个涡轮机上产生流动的“通道化”效应。