公开(公告)号：US20130255276A1

公开(公告)日：2013-10-03

申请号：US13778674

申请日：2013-02-27

Applicant: ALSTOM TECHNOLOGY LTD.

Inventor： Stephen W. Jorgensen ,  Joshua R. McNally ,  Hany Rizkalla

IPC: F02C7/20 ,  F01D25/24

CPC classification number: F02C7/20 ,  F01D9/023 ,  F01D25/243

Abstract: The present invention is directed to a mounting system for a gas turbine transition duct. The mounting system includes a generally C-shaped mounting bracket having a generally radially extending first portion, an arc-shaped second portion, and a generally radially extending third portion. Each of the first portion and third portion includes a spherical bearing and the second portion has a plurality of sets of mounting holes. In another embodiment of the present invention, a gas turbine transition duct is provided having a panel assembly, an aft frame secured to the panel assembly and a mounting system for securing the transition duct to a turbine inlet. The panel assembly includes two formed sheets of metal secured together along axial seams. The panel assembly is secured to an aft frame that is capable of expanding in the circumferential direction due to thermal growth. The mounting system comprises a generally C-shaped mounting bracket having a generally radially extending first portion, an arc-shaped second portion, and a generally radially extending third portion. Each of the first portion and third portion includes a spherical bearing and the second portion has a plurality of sets of mounting holes.

Abstract translation: 本发明涉及一种用于燃气轮机过渡管道的安装系统。 安装系统包括大致C形的安装支架，其具有大致径向延伸的第一部分，弧形第二部分和大致径向延伸的第三部分。 第一部分和第三部分中的每一个包括球面轴承，第二部分具有多组安装孔。 在本发明的另一个实施例中，提供了一种燃气轮机过渡管道，其具有面板组件，固定到面板组件的后框架和用于将过渡管道固定到涡轮机入口的安装系统。 面板组件包括沿着轴向接缝固定在一起的两个成形金属片。 面板组件被固定到能够由于热生长而沿圆周方向膨胀的后框架。 安装系统包括大致C形的安装支架，其具有大致径向延伸的第一部分，弧形第二部分和大致径向延伸的第三部分。 第一部分和第三部分中的每一个包括球面轴承，第二部分具有多组安装孔。

公开(公告)号：US09376963B2

公开(公告)日：2016-06-28

申请号：US13742401

申请日：2013-01-16

Applicant: ALSTOM TECHNOLOGY LTD.

Inventor： Sumit Soni ,  Donald Gauthier ,  Hany Rizkalla ,  Khalid Oumejjoud ,  Peter Stuttaford

IPC: F02C9/00 ,  F02C9/28 ,  F23D14/82 ,  F23N5/16 ,  F23R3/34

CPC classification number: F02C9/00 ,  F02C9/28 ,  F23D14/82 ,  F23D2209/10 ,  F23N5/16 ,  F23N2031/28 ,  F23R3/34 ,  F23R2900/00013

Abstract: A tuning process is provided for dynamically tuning a gas-turbine (GT) engine to correct for flashback events without directly measuring occurrences of the flashback events at the GT engine. Initially, readings are taken that measure low-frequency dynamics at the GT engine. A determination of whether flashback criteria are met by an instantaneous signal that quantifies a detected spike within the measured low-frequency dynamics is carried out, where the flashback criteria include the following: identifying the spike overcomes a multiple of an average of the low-frequency dynamics measured over a predefined period of time; and identifying the spike overcomes a preestablished minimum amplitude. Upon the spike meeting the flashback criteria, a count is added to a running record of spikes, which is compared to an alarm limit. If the alarm limit is triggered, action(s) are invoked to address the flashback events, such as adjusting fuel-flow splits of the GT engine.

Abstract translation: 提供了一种调节过程，用于动态调整燃气轮机（GT）发动机，以校正闪回事件，而不直接测量GT发动机的闪回事件的发生。 最初，采用测量GT发动机低频动力学的读数。 执行闪光标准是否通过在所测量的低频动态中量化检测到的尖峰的瞬时信号来满足闪回标准，其中闪回标准包括以下：识别尖峰克服了低频的平均值的倍数 动态测量在预定义的时间段内; 并且识别尖峰克服了预先建立的最小幅度。 当峰值满足闪回标准时，会将一个计数添加到运行中的尖峰记录，与报警限制进行比较。 如果触发报警限制，则调用动作来解决闪回事件，例如调整GT引擎的燃油流量分配。