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公开(公告)号：US20050229581A1
公开(公告)日：2005-10-20
申请号：US10460363
申请日：2003-06-13
CPC分类号： F23D11/402 , F23M20/005 , F23R3/286 , F23R2900/00014 , F23R2900/03341
摘要： A reheat combustion system for a gas turbine comprises a mixing tube adapted to be fed by products of a primary combustion zone of the gas turbine and by fuel injected by a lance; a combustion chamber bed by the said mixing tube; and at least one perforated acoustic screen. The or each said acoustic screen is provided inside the mixing tube or the combustion chamber, at a position where it faces, but is spaced from, a perforated wall thereof. In use, the perforated wall experiences impingement cooling as it admits air into the combustion system for onward passage through the perforations of the said acoustic screen, and the acoustic screen damps acoustic pulsations in the mixing tube and combustion chamber.
摘要翻译： 用于燃气轮机的再热燃烧系统包括适于由燃气轮机的主燃烧区的产物和由喷枪喷射的燃料供给的混合管; 通过所述混合管的燃烧室床; 和至少一个穿孔声屏。 所述或每个所述声屏被设置在所述混合管或所述燃烧室内部，所述位于与所述混合管或所述燃烧室相对的位置，但与其穿孔壁相对。 在使用中，穿孔壁经受冲击冷却，因为它允许空气进入燃烧系统，以便先前通过所述声屏幕的穿孔，并且声屏蔽物阻止混合管和燃烧室中的声脉冲。
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公开(公告)号：US06981358B2
公开(公告)日：2006-01-03
申请号：US10460363
申请日：2003-06-13
申请人： Valter Bellucci , Peter Flohr , Christian Oliver Paschereit , Bruno Schuermans , Daniele Tabacco
发明人： Valter Bellucci , Peter Flohr , Christian Oliver Paschereit , Bruno Schuermans , Daniele Tabacco
CPC分类号： F23D11/402 , F23M20/005 , F23R3/286 , F23R2900/00014 , F23R2900/03341
摘要： A reheat combustion system for a gas turbine comprises a mixing tube adapted to be fed by products of a primary combustion zone of the gas turbine and by fuel injected by a lance; a combustion chamber fed by the said mixing tube; and at least one perforated acoustic screen. The or each said acoustic screen is provided inside the mixing tube or the combustion chamber, at a position where it faces, but is spaced from, a perforated wall thereof. In use, the perforated wall experiences impingement cooling as it admits air into the combustion system for onward passage through the perforations of the said acoustic screen, and the acoustic screen damps acoustic pulsations in the mixing tube and combustion chamber.
摘要翻译： 用于燃气轮机的再热燃烧系统包括适于由燃气轮机的主燃烧区的产物和由喷枪喷射的燃料供给的混合管; 由所述混合管供给的燃烧室; 和至少一个穿孔声屏。 所述或每个所述声屏被设置在所述混合管或所述燃烧室内部，所述位于与所述混合管或所述燃烧室相对的位置，但与其穿孔壁相对。 在使用中，穿孔壁经受冲击冷却，因为它允许空气进入燃烧系统，以便先前通过所述声屏幕的穿孔，并且声屏蔽物阻止混合管和燃烧室中的声脉冲。
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公开(公告)号：US20060101825A1
公开(公告)日：2006-05-18
申请号：US11214919
申请日：2005-08-31
IPC分类号： F23R3/30
CPC分类号： F23R3/286 , F23M20/005 , F23R3/002 , F23R2900/00014
摘要： A premix burner has a swirl generator and two perforated through flow elements are arranged at a defined distance from one another in the inflow region for the combustion air. The through flow elements are preferably arranged in such a way that substantially the entire combustion airstream has to flow through the through flow elements. The degree of perforation of the through flow elements and the distance between these elements are preferably adapted to one another in such a way that a reflection free condition for combustion pulsation frequencies which may be expected is present at the exit from the burner into the combustion chamber.
摘要翻译： 预混燃烧器具有涡流发生器，并且两个穿孔的流动元件在用于燃烧空气的流入区域中以彼此限定的距离布置。 通流元件优选地布置成使得基本上整个燃烧气流必须流过通过流动元件。 通过流动元件的穿孔程度和这些元件之间的距离优选地彼此适配，使得可以预期的燃烧脉动频率的无反射条件存在于从燃烧器进入燃烧室的出口 。
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公开(公告)号：US07901203B2
公开(公告)日：2011-03-08
申请号：US11676584
申请日：2007-02-20
申请人： Alexander Ni , Valter Bellucci , Peter Flohr , Bruno Schuermans , Majed Toqan , Ken-Yves Haffner
发明人： Alexander Ni , Valter Bellucci , Peter Flohr , Bruno Schuermans , Majed Toqan , Ken-Yves Haffner
IPC分类号： F23N1/02
CPC分类号： F23N1/002 , F23N5/08 , F23N5/082 , F23N5/16 , F23N2023/10 , F23N2025/04 , F23N2031/06 , F23N2037/02 , F23R3/28
摘要： A combustion chamber (1), in particular in a gas turbine, has at least two burners (A-H) that are connected to a fuel supply (3) via controllable fuel valves (2′ and 2). Each burner (A to H) is assigned at least one optical measuring device (4) for detecting chemiluminescent radiation, and the combustion chamber (1) is assigned a pressure sensor (7) for detecting a combustion chamber pressure. The optical measuring device (4) and the pressure sensor (7) are connected to a computing and control device, which calculates a correlation value from the incoming measured values. A high correlation value signifies that the associated burner is prone to pulsation. The computing and control device (6) is designed in such a way that it determines the burner or a burner group with the highest correlation and controls the associated fuel valve(s) in such a way that more fuel is fed to the respective burner or the respective burner group, and the pulsation tendency thereof is thereby reduced.
摘要翻译： 特别是在燃气轮机中的燃烧室（1）具有通过可控燃油门（2'和2）连接到燃料供应源（3）的至少两个燃烧器（A-H）。 每个燃烧器（A至H）分配有用于检测化学发光辐射的至少一个光学测量装置（4），并且燃烧室（1）被分配用于检测燃烧室压力的压力传感器（7）。 光学测量装置（4）和压力传感器（7）连接到计算和控制装置，其计算来自测量值的相关值。 高相关值表示相关联的燃烧器容易产生脉动。 计算和控制装置（6）被设计成使得其确定具有最高相关性的燃烧器或燃烧器组，并且以更多的燃料被供给到相应的燃烧器或者相应的燃料 相应的燃烧器组及其脉动趋势由此减小。
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公开(公告)号：US20070224559A1
公开(公告)日：2007-09-27
申请号：US11676584
申请日：2007-02-20
申请人： Alexander Ni , Valter Bellucci , Peter Flohr , Bruno Schuermans , Majed Toqan , Ken-Yves Haffner
发明人： Alexander Ni , Valter Bellucci , Peter Flohr , Bruno Schuermans , Majed Toqan , Ken-Yves Haffner
IPC分类号： F23N5/08
CPC分类号： F23N1/002 , F23N5/08 , F23N5/082 , F23N5/16 , F23N2023/10 , F23N2025/04 , F23N2031/06 , F23N2037/02 , F23R3/28
摘要： A combustion chamber (1), in particular in a gas turbine, has at least two burners (A-H) that are connected to a fuel supply (3) via controllable fuel valves (2′ and 2). Each burner (A to H) is assigned at least one optical measuring device (4) for detecting chemiluminescent radiation, and the combustion chamber (1) is assigned a pressure sensor (7) for detecting a combustion chamber pressure. The optical measuring device (4) and the pressure sensor (7) are connected to a computing and control device, which calculates a correlation value from the incoming measured values. A high correlation value signifies that the associated burner is prone to pulsation. The computing and control device (6) is designed in such a way that it determines the burner or a burner group with the highest correlation and controls the associated fuel valve(s) in such a way that more fuel is fed to the respective burner or the respective burner group, and the pulsation tendency thereof is thereby reduced.
摘要翻译： 特别是在燃气轮机中的燃烧室（1）具有通过可控燃油门（2'和2）连接到燃料供应源（3）的至少两个燃烧器（A-H）。 每个燃烧器（A至H）分配有用于检测化学发光辐射的至少一个光学测量装置（4），并且燃烧室（1）被分配用于检测燃烧室压力的压力传感器（7）。 光学测量装置（4）和压力传感器（7）连接到计算和控制装置，其计算来自测量值的相关值。 高相关值表示相关联的燃烧器容易产生脉动。 计算和控制装置（6）被设计成使得其确定具有最高相关性的燃烧器或燃烧器组，并且以更多的燃料被供给到相应的燃烧器或者相应的燃料 相应的燃烧器组及其脉动趋势由此减小。
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公开(公告)号：US07424804B2
公开(公告)日：2008-09-16
申请号：US11214919
申请日：2005-08-31
CPC分类号： F23R3/286 , F23M20/005 , F23R3/002 , F23R2900/00014
摘要： A premix burner has a swirl generator and two perforated through flow elements are arranged at a defined distance from one another in the inflow region for the combustion air. The through flow elements are preferably arranged in such a way that substantially the entire combustion airstream has to flow through the through flow elements. The degree of perforation of the through flow elements and the distance between these elements are preferably adapted to one another in such a way that a reflection free condition for combustion pulsation frequencies which may be expected is present at the exit from the burner into the combustion chamber.
摘要翻译： 预混燃烧器具有涡流发生器，并且两个穿孔的流动元件在用于燃烧空气的流入区域中以彼此限定的距离布置。 通流元件优选地布置成使得基本上整个燃烧气流必须流过通过流动元件。 通过流动元件的穿孔程度和这些元件之间的距离优选地彼此适配，使得可以预期的燃烧脉动频率的无反射条件存在于从燃烧器进入燃烧室的出口 。
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7.发明授权Device for efficient usage of cooling air for acoustic damping of combustion chamber pulsations 有权用于有效利用冷却空气用于燃烧室脉动的声学阻尼的装置公开(公告)号：US07065971B2
公开(公告)日：2006-06-27
申请号：US10792709
申请日：2004-03-05
申请人： Valter Bellucci , Jonas Hurter , Joerg Pross
发明人： Valter Bellucci , Jonas Hurter , Joerg Pross
IPC分类号： F23R3/02
CPC分类号： F02B77/13 , F05B2260/96 , F23R3/04 , F23R2900/00014 , Y02T50/675
摘要： Combustion driven pressure pulsations may limit the range of operating conditions where a modern gas turbine can operate with low emission and high efficiency performance. The control of acoustic vibrations has been consequently growing as an essential issue in gas turbine design, development and maintenance. The basic idea of the present invention is to use cooling air leakage through the gaps (7) of combustor liner segments (3;4) to get acoustic damping of combustion pulsations. The main component of the design is the sealing device (8) which covers the gap (7) between the two liner segments (3) and (4). The sealing device (8) collects in the plenum (9) some of the cooling air (6) flowing between the outer casing (1) and the inner liner structure (2). For this purpose the sealing device (8) is provided with openings (12) along the side walls (10) which allow the cooling air (6) to enter the plenum (9). In the plenum (9) the cooling air (6) is distributed along the gap (7) and discharged through openings (13), distributed along the top side (11) of the sealing device (8). The jets (18) discharged through the openings (13) achieve the additional effect to dampen acoustic pulsations in the combustion chamber (17).
摘要翻译： 燃烧驱动的压力脉动可能限制现代燃气轮机可以以低排放和高效率运行的操作条件的范围。 因此，声波振动的控制作为燃气轮机设计，开发和维护中的一个重要问题而日益增长。 本发明的基本思想是使用通过燃烧器衬套段（3; 4）的间隙（7）的冷却空气泄漏来获得燃烧脉动的声阻尼。 设计的主要部件是覆盖两个衬垫段（3）和（4）之间的间隙（7）的密封装置（8）。 密封装置（8）在集气室（9）中收集在外壳（1）和内衬层结构（2）之间流动的一些冷却空气（6）。 为此，密封装置（8）沿着侧壁（10）设有允许冷却空气（6）进入增压室（9）的开口（12）。 在集气室（9）中，冷却空气（6）沿着间隙（7）分布并通过沿着密封装置（8）的顶侧（11）分布的开口（13）排出。 通过开口（13）排出的喷嘴（18）实现了抑制燃烧室（17）中的声波脉动的附加效果。
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