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    • 1. 发明授权
    • Gas turbine having a combustion oscillation suppressing device
    • 具有燃烧振动抑制装置的燃气轮机
    • US08904794B2
    • 2014-12-09
    • US12671046
    • 2008-10-17
    • Keisuke MatsuyamaKotaro Miyauchi
    • Keisuke MatsuyamaKotaro Miyauchi
    • F02C7/24F01D9/02F23R3/00
    • F02C7/24F01D9/023F05D2260/96F05D2260/963F23M20/005F23R3/00F23R2900/00014
    • A gas turbine including a combustion oscillation suppressing device disposed to a transition piece of a combustor to define a gas space S, and having a plurality of vent holes through which a gas space L and the inside of the transition piece communicate. The combustion oscillation suppressing device is formed of a first member and a second member which define the gas space, the second member having the plurality of vent holes, and a portion of a transition piece wall includes the second member. A distance from the second member to the first member in the radial direction of the transition piece is a height of the gas space, and when the height of the gas space varies along an axial direction of the transition piece, an opening ratio σp of each of the plurality of vent holes is adjusted depending on the height of the gas space.
    • 一种燃气轮机,包括设置在燃烧器的过渡件上以限定气体空间S的燃烧振荡抑制装置,并且具有多个通气孔,气体空间L和过渡件的内部通过该通气孔连通。 燃烧振动抑制装置由限定气体空间的第一构件和第二构件形成,具有多个通气孔的第二构件和过渡件壁的一部分包括第二构件。 在过渡件的径向方向上从第二构件到第一构件的距离是气体空间的高度,并且当气体空间的高度沿着过渡件的轴向方向变化时,开口率&sgr 根据气体空间的高度来调节多个通气孔中的每一个。
    • 2. 发明申请
    • GAS TURBINE
    • 燃气轮机
    • US20100186411A1
    • 2010-07-29
    • US12671046
    • 2008-10-17
    • Keisuke MatsuyamaKotaro Miyauchi
    • Keisuke MatsuyamaKotaro Miyauchi
    • F02C7/24
    • F02C7/24F01D9/023F05D2260/96F05D2260/963F23M20/005F23R3/00F23R2900/00014
    • An object of the present invention is to provide a gas turbine that improves appearance of a combustion oscillation suppressing device disposed to a transition piece of a combustor. To achieve the object, a combustion oscillation suppressing device 34 is disposed to a transition piece 32 of a combustor to define a gas space S, and has a plurality of vent holes 343 through which a gas space L and the inside of the transition piece 32 communicate with each other. The combustion oscillation suppressing device 34 has: a first member 341 that has a substantially U-shaped cross-section formed by press-working, and is disposed on the outer circumference of the transition piece 32 with a substantially U-shaped cross-section opening thereof facing the transition piece 32; and a second member 342 that defines the gas space S between the first member 341 and the second member 342 by blocking the substantially U-shaped cross-section opening of the first member 341, and has the vent holes 343. In a radial-direction cross section of the transition piece 32, when the outer diameter of the transition piece 32 varies along an axial direction of the transition piece 32, distances d1 and d2 from the axis L of the transition piece 32 to each bent portion of the first member 341 having a substantially U-shaped cross-section are set to be substantially equal.
    • 本发明的目的在于提供一种能够改善设置在燃烧器的过渡件上的燃烧振动抑制装置的外观的燃气轮机。 为了实现该目的,燃烧振动抑制装置34设置在燃烧器的过渡件32上以形成气体空间S,并且具有多个通气孔343,气体空间L和过渡件32的内部 相互沟通。 燃烧振动抑制装置34具有:第一构件341,其具有通过加压加工形成的大致U字形的截面,并且设置在过渡件32的外周上,具有大致U形的横截面开口 面向过渡件32; 以及第二构件342,其通过阻挡第一构件341的大致U形的横截面开口限定第一构件341和第二构件342之间的气体空间S,并且具有通气孔343。 当过渡件32的外径沿着过渡件32的轴向方向变化时,过渡件32的横截面为从过渡件32的轴线L到第一件341的每个弯曲部分的距离d1和d2 具有基本上U形的横截面被设定为基本相等。
    • 5. 发明申请
    • COOLING STRUCTURE OF GAS TURBINE COMBUSTOR
    • 燃气轮机组的冷却结构
    • US20100180601A1
    • 2010-07-22
    • US12598100
    • 2008-09-24
    • Tatsuo IshiguroKatsunori TanakaKotaro Miyauchi
    • Tatsuo IshiguroKatsunori TanakaKotaro Miyauchi
    • F02C3/14
    • F23R3/283F23R3/005F23R3/06F23R2900/03042F23R2900/03044
    • It is required for a gas turbine combustor to exhaust low NOx. The gas turbine combustor is provided with a combustion tube which has a cooling passage through which cooling air flows in a double wall structure. The cooling passage has a main cooling air supply opening opened to a side of a combustion zone. The cooling air supplied from the main cooling air supply opening is guided to a direction along an inner wall surface of the combustion tube by a guide. The cooling air flows through the cooling passage inside the combustion tube, and then is reused for film cooling along the inner wall surface. Thus, it is possible to save cooling air. Therefore, a more part of the air supplied from a compressor can be used as air for combustion and it becomes possible to exhaust low NOx.
    • 燃气轮机燃烧器需要排出低NOx。 燃气轮机燃烧器设置有燃烧管,该燃烧管具有冷却空气以双壁结构流动的冷却通道。 冷却通道具有向燃烧区侧面敞开的主冷却空气供给口。 从主冷却空气供给口供给的冷却空气通过引导件被引导到燃烧管的内壁面的方向。 冷却空气流过燃烧管内的冷却通道,然后再次用于沿内壁表面进行膜冷却。 因此,可以节省冷却空气。 因此,从压缩机供给的空气的一部分能够用作燃烧用空气,能够排出低NOx。
    • 7. 发明授权
    • Gas turbine control method and device
    • 燃气轮机控制方法及装置
    • US08701420B2
    • 2014-04-22
    • US12673932
    • 2009-02-23
    • Masumi NomuraKotaro Miyauchi
    • Masumi NomuraKotaro Miyauchi
    • F02C9/52F02C9/00
    • F02C9/52F02C9/28F02C9/54F05D2270/114F05D2270/14F05D2270/301F05D2270/3061F05D2270/332F05D2270/334
    • A gas turbine control device having a gas turbine control unit for the gas turbine operation control that computes adjustment increments regarding at least one of the airflow rate into the combustor and the pilot ratio, and makes revisions to the actuating variables comprising the airflow rate and the pilot ratio so that the actuating variables are contrasted with the status signals and the variables are modified toward initial design conditions. The gas turbine control unit resets the revisions made to the actuating variables in a case where the level of the combustion vibration is restrained below the predetermined control criterion for a predetermined time span, and the gas turbine is operated under the control settings of the initial design stage.
    • 一种燃气轮机控制装置,具有用于燃气轮机运行控制的燃气轮机控制单元,该燃气轮机控制单元计算关于进入燃烧器的气流率和导频比中的至少一个的调节增量,并且对包括气流速率和 导频比,使得致动变量与状态信号形成对比,并且将变量修改为初始设计条件。 燃气轮机控制单元将在燃烧振动的水平被抑制在预定控制标准下达预定时间间隔的情况下复位对致动变量的修正,并且燃气轮机在初始设计的控制设置下操作 阶段。
    • 8. 发明申请
    • GAS TURBINE CONTROL METHOD AND DEVICE
    • 气体涡轮机控制方法和装置
    • US20100199680A1
    • 2010-08-12
    • US12673932
    • 2009-02-23
    • Masumi NomuraKotaro Miyauchi
    • Masumi NomuraKotaro Miyauchi
    • F02C9/50
    • F02C9/52F02C9/28F02C9/54F05D2270/114F05D2270/14F05D2270/301F05D2270/3061F05D2270/332F05D2270/334
    • A gas turbine control method for preventing then operation from deviating from the operating state at the ideal fuel and air flow-rates expected when the gas turbine is designed and maintaining an efficient operating state. A gas turbine control device comprises a frequency analyzing means for analyzing the frequencies inside the combustor of a gas turbine, a state grasping means for grasping the combustion state in the gas turbine on the basis of a state signal representing the result of the analysis by frequency band, the amount of operation process including a ratio between the air flow rate and pilot fuel in the gas turbine, the atmosphere state, and the load amount, a combustion characteristic grasping means for grasping the characteristic of the combustion vibration, and a control section for calculating a correction value of at least either the air flow rate supplied to the combustor or the pilot ratio from the grasped combustion vibration characteristic and the grasped combustion state each time the degree of the combustion vibration exceeds a predetermined control value, correcting the initial design values of the air flow rate and the pilot ratio predetermined correspondingly to the amount of operation process and the state signal, and thereby driving the gas turbine. The control section resets the correction of the initial design values when the degree of combustion vibration of the gas turbine is below the predetermined control value for a given period of time and operates the gas turbine using the initial design values.
    • 一种燃气轮机控制方法,用于防止在设计燃气涡轮机时期望的理想燃料和空气流速下操作偏离操作状态并保持有效的操作状态。 燃气轮机控制装置包括:频率分析装置,用于分析燃气轮机的燃烧器内部的频率;状态把持装置,用于根据表示分析结果的状态信号按照频率来获取燃气轮机中的燃烧状态 包括燃气轮机中的空气流量与先导燃料之间的比例,气氛状态和负载量的运转处理量,用于掌握燃烧振动特性的燃烧特性获取装置,以及控制部 每当燃烧振动的程度超过预定的控制值时,根据所掌握的燃烧振动特性和所掌握的燃烧状态来计算至少提供给燃烧器的空气流量或者先导比的校正值,校正初始设计 对应于操作量的空气流量和导频比的值 从而驱动燃气轮机。 当燃气轮机的燃烧振动程度低于预定控制值一段给定的时间段时,控制部分复位初始设计值的校正,并且使用初始设计值来操作燃气轮机。
    • 9. 发明申请
    • GAS TURBINE CONTROL DEVICE
    • 气体涡轮控制装置
    • US20110056180A1
    • 2011-03-10
    • US12933963
    • 2009-04-10
    • Masumi NomuraKozo ToyamaTomo KawakamiKotaro MiyauchiKuniharu Fujibayashi
    • Masumi NomuraKozo ToyamaTomo KawakamiKotaro MiyauchiKuniharu Fujibayashi
    • F02C9/00
    • F02C9/18F01D17/04F01D17/085F02C9/22F02C9/28F02C9/52F02C9/54F05D2270/053F05D2270/082F05D2270/14F05D2270/303F23N1/022F23N5/022F23N2021/10F23N2023/42F23N2025/13F23N2037/20F23N2041/20F23R2900/00013
    • Occurrence of combustion vibration is prevented in a gas turbine plant by enhancing the degree of freedom in setting an airflow rate or a fuel flow rate in correspondence with a target load thereby enhancing combustion stability. A gas turbine controller comprises a first function generator (62) for setting the flow rate of fuel or air being supplied to a combustor (32) in correspondence with a target load, an suction air temperature sensor (22) for detecting intake temperature at the inlet of a compressor, a second function generator (69) for setting a correction amount of a set value of fuel flow rate or air flow rate based on the value detected by the suction air temperature sensor (22), a third function generator (66) for setting a modification amount of the correction amount while taking account of the target load, a first multiplier (68); for operating a modified correction amount from a correction amount set by the second function generator and a modification amount set by the third function generator, and a second multiplier (64) for calculating the flow rate of fuel or air being supplied to a combustor by adding the modified correction amount to the set value of fuel flow rate or air flow rate set by the first function generator.
    • 通过提高与目标负荷相对应地设定气流速度或燃料流量的自由度,从而提高燃烧稳定性,可以防止燃气轮机厂的燃烧振动的发生。 一种燃气轮机控制器包括:第一功能发生器(62),用于根据目标负载设定供给到燃烧器(32)的燃料或空气的流量;吸入空气温度传感器(22),用于检测 第二功能发生器(69),用于基于由吸入空气温度传感器(22)检测的值来设定燃料流量或空气流量的设定值的校正量,第三功能发生器(66) ),用于在考虑目标负载的同时设定修正量的修正量,第一乘法器(68); 用于从由第二函数发生器设定的校正量和由第三函数发生器设置的修正量操作修正校正量;以及第二乘法器(64),用于计算通过添加向燃烧器供应的燃料或空气的流量 将修正校正量设定为由第一函数发生器设定的燃料流量或空气流量的设定值。