公开(公告)号：US6164075A

公开(公告)日：2000-12-26

申请号：US155937

申请日：1999-04-29

申请人： Kiryo Igarashi ,  Akio Ogose ,  Kouichi Akagi ,  Mitsuru Inada

发明人： Kiryo Igarashi ,  Akio Ogose ,  Kouichi Akagi ,  Mitsuru Inada

IPC分类号： F02C7/141 ,  F02C7/18 ,  F23M5/08 ,  F23R3/00 ,  F23R3/42

CPC分类号： F23R3/005 ,  F05B2260/205 ,  F05B2260/233

摘要： This invention concerns the use of pressurized steam as the cooling medium in the combustor wall of a gas turbine combustor. It is distinguished by the following. The combustor wall is configured by 1) a plurality of cooling channels for cooling steam, sealed by an exterior wall panel and a heat-resistant plate which are assembled by soldering or some other method; 2) a supply manifold for supplying the cooling steam into the cooling channels, which is provided on one end of the cooling channels; and 3) a recovery manifold for recovering the cooling steam from the cooling channels, which is provided on another end of the cooling channels. This arrangement can form strong enough steam-channels that do not allow any leakage of the high pressure steam from the cooling system.

摘要翻译： PCT No.PCT / JP98 / 00552 Sec。 371日期1999年4月29日第 102（e）日期1999年4月29日PCT提交1998年2月12日PCT公布。 公开号WO98 / 36220 PCT 日期1998年8月20日本发明涉及使用加压蒸汽作为燃气轮机燃烧器的燃烧器壁中的冷却介质。 它的区别在于以下内容。 燃烧室壁由1个冷却通道构成，冷却通道用于通过焊接或其它方法组装的外壁板和耐热板进行密封; 2）供应歧管，用于将冷却蒸汽供应到设置在冷却通道一端的冷却通道中; 以及3）回收歧管，用于从冷却通道的冷却通道的另一端回收冷却蒸汽。 这种布置可以形成足够强的蒸汽通道，其不允许来自冷却系统的高压蒸汽的任何泄漏。

公开(公告)号：US06173561B1

公开(公告)日：2001-01-16

申请号：US09155938

申请日：1999-04-29

申请人： Minoru Sato ,  Yuichi Kobayashi ,  Kouichi Akagi ,  Mitsuru Inada

发明人： Minoru Sato ,  Yuichi Kobayashi ,  Kouichi Akagi ,  Mitsuru Inada

IPC分类号： F23R342

CPC分类号： F02C7/18 ,  F05D2260/205 ,  F05D2260/2322 ,  F23R3/005

摘要： This invention concerns the use of pressurized steam as the cooling medium for a gas turbine combustor. It is distinguished by the following. Steam supply manifolds or ports for the cooling steam are provided on the gas inlet and outlet sides of the combustion chamber in the gas turbine combustor. A steam exhaust manifold or port for the cooling steam is provided between the gas inlet and outlet sides, in approximately the center of the chamber. Cooling channels for the steam are created in the external wall panel of the chamber between the steam supply manifolds and the exhaust manifold. The steam supplied into the wall panel through the steam supply manifolds on the gas inlet and outlet sides of the chamber is exhausted to the exterior via the steam exhaust manifold in the center of the chamber. This design allows pressurized steam with a high thermal capacity to be used to effectively cool the wall panels of the combustor, which are exposed to extremely hot combustion gases.

摘要翻译： 本发明涉及使用加压蒸汽作为燃气轮机燃烧器的冷却介质。 它的区别在于以下内容。 用于冷却蒸汽的蒸汽供应歧管或端口设置在燃气轮机燃烧器中的燃烧室的气体入口侧和出口侧。 用于冷却蒸汽的蒸汽排气歧管或端口设置在气体入口侧和出口侧之间，大致在室的中心。 蒸汽的冷却通道在蒸汽供应歧管和排气歧管之间的室的外壁板中产生。 通过腔室的气体入口和出口侧的蒸汽供应歧管向壁板供应的蒸汽通过腔室中心的蒸汽排气歧管排放到外部。 这种设计允许具有高热容量的加压蒸汽用于有效地冷却暴露于极热燃烧气体的燃烧器的壁板。

公开(公告)号：US06220036B1

公开(公告)日：2001-04-24

申请号：US09194016

申请日：1998-11-19

申请人： Mitsuru Inada ,  Kouichi Akagi ,  Jun Kubota ,  Koji Watanabe ,  Yoshichika Sato

发明人： Mitsuru Inada ,  Kouichi Akagi ,  Jun Kubota ,  Koji Watanabe ,  Yoshichika Sato

IPC分类号： F02C330

CPC分类号： F23R3/005 ,  F01D9/023 ,  F01D25/26 ,  F05D2230/642 ,  F05D2260/2322 ,  Y02E20/16 ,  Y02T50/676

摘要： Gas turbine combustor tail tube cooling structure is improved so that temperature distribution along tail tube axial direction is made gentle and large thermal stress is prevented from occurring resulting in enhancement of safety and reliability of the combustor tail tube. Supply jacket (16) is disposed between upstream side discharge jacket (14) and downstream side discharge jacket (15). The upstream side discharge jacket (14) is disposed apart from tail tube inlet (2) at position close to by-pass passage (10) so as to form non-cooled zone (A) in the vicinity of the tail tube inlet (2). On the downstream side thereof, the supply jacket (16) is disposed at position in tail tube (1) contracting portion and near the downstream side discharge jacket (15) so as to shorten length of cooling pipes there.

摘要翻译： 改善了燃气轮机燃烧器尾管冷却结构，使得沿着尾管轴向的温度分布变得平缓，并且防止发生大的热应力，从而提高了燃烧器尾管的安全性和可靠性。 电源护套（16）设置在上游侧放电护套（14）和下游侧放电护套（15）之间。 上游侧排气套（14）在靠近旁路通道（10）的位置处与尾管入口（2）分开设置，以在尾管入口（2）附近形成非冷却区域（A） ）。 在其下游侧，供气套（16）设置在尾管（1）收缩部分中并位于下游侧排放套（15）附近，以缩短冷却管的长度。

公开(公告)号：US06772581B2

公开(公告)日：2004-08-10

申请号：US09748158

申请日：2000-12-27

申请人： Yasuhiro Ojiro ,  Kouichi Akagi ,  Ryotaro Magoshi ,  Hitoshi Morimoto ,  Shinya Hashimoto ,  Tadao Yashiki

发明人： Yasuhiro Ojiro ,  Kouichi Akagi ,  Ryotaro Magoshi ,  Hitoshi Morimoto ,  Shinya Hashimoto ,  Tadao Yashiki

IPC分类号： F02C300

CPC分类号： F02C7/16 ,  F01D11/24 ,  F01D25/12 ,  F05D2260/205 ,  F05D2260/2322

摘要： A gas turbine blade ring is cooled by steam whose temperature, pressure and flow rate are controlled so that a clearance between a moving blade tip and blade ring is maintained appropriately. Steam from a steam turbine bottoming cycle (10) flows into a blade ring cooling passage (8) of a gas turbine (1) via piping (12) for cooling the blade ring. The steam, having cooled the blade ring, is supplied into a transition piece cooling passage (9) of a combustor (3) for cooling the transition piece, and is then recovered into the steam turbine bottoming cycle (10) via piping (14). While the steam cools the blade ring, the temperature, pressure and flow rate of the steam are controlled so that thermal elongation of the blade ring is adjusted and the clearance at the moving blade tip is controlled so as to approach a target value. Thus, the clearance is maintained as small as possible in operation and the gas turbine performance is enhanced.

摘要翻译： 燃气轮机叶片环由其温度，压力和流速被控制的蒸汽冷却，使得动叶片尖端和叶片环之间的间隙适当地保持。 来自汽轮机底循环（10）的蒸汽经由用于冷却叶片环的管道（12）流入燃气轮机（1）的叶片环冷却通道（8）。 已经将叶片环冷却的蒸汽被供应到用于冷却过渡件的燃烧器（3）的过渡件冷却通道（9）中，然后通过管道（14）回收到蒸汽涡轮机底循环（10）中， 。 当蒸汽冷却叶片环时，控制蒸汽的温度，压力和流速，从而调节叶片环的热伸长并控制活动叶片尖端处的间隙以接近目标值。 因此，在操作中，间隙保持尽可能小，并且提高了燃气轮机的性能。

公开(公告)号：US5988890A

公开(公告)日：1999-11-23

申请号：US18731

申请日：1998-02-04

申请人： Kazuo Uematsu ,  Tadao Yashiki ,  Kouichi Akagi

发明人： Kazuo Uematsu ,  Tadao Yashiki ,  Kouichi Akagi

IPC分类号： F01D25/16 ,  F02C7/06 ,  F16C19/54 ,  F16C25/04 ,  F16D3/72 ,  F16C19/49

CPC分类号： F16C19/54 ,  F16D3/72

摘要： A rotor shaft that is supported by a deep groove ball bearing a radial load and a unidirectional thrust load, and by a cylindrical roller bearing for bearing a radial load. Also, a pretension applying means is provided for applying a pretension to the rotor shaft in the same direction as the thrust load which is borne by the deep groove ball bearing.

摘要翻译： 转子轴由承受径向载荷和单向推力载荷的深沟球轴承，以及用于承受径向载荷的圆柱滚子轴承支撑。 而且，提供了一种预紧施加装置，用于沿与由深沟球轴承承载的推力载荷相同的方向向转子轴施加预紧力。

公开(公告)号：US06578363B2

公开(公告)日：2003-06-17

申请号：US10072865

申请日：2002-02-12

申请人： Yukihiro Hashimoto ,  Hironobu Hakoda ,  Kouichi Akagi ,  Rintaro Chikami

发明人： Yukihiro Hashimoto ,  Hironobu Hakoda ,  Kouichi Akagi ,  Rintaro Chikami

IPC分类号： F02C712

CPC分类号： F01D25/26 ,  F01D9/02 ,  F01D25/14 ,  F01D25/30 ,  F02C7/18

摘要： Cooling air passages are formed in the wall of an exhaust casing connected to a turbine casing of a gas turbine. Low pressure air extracted from the low pressure stage of an air compressor of the gas turbine is supplied to the cooling air passage from the portion near the downstream end of the exhaust casing. Cooling air flows through the cooling air passage toward the upstream end of the exhaust casing and then flows into an annular cavity formed in the turbine casing near the portion corresponding to the last turbine stage. Therefore, the metal temperature of the exhaust casing near the upstream end (near the joint between the exhaust casing and the turbine casing) is lowered by the cooling air and, as cooling air of a relatively high temperature is supplied to the cavity in the turbine casing, the metal temperature of the turbine casing near the downstream end becomes higher than that provided by a conventional cooling system. Therefore, the difference between the metal temperatures of the turbine casing and the exhaust casing becomes very small and the thermal stress exerted on the exhaust casing due to the temperature difference can be largely reduced.

公开(公告)号：US06976680B2

公开(公告)日：2005-12-20

申请号：US10253511

申请日：2002-09-25

申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Kouichi Akagi ,  Masanori Yuri ,  Takashi Nakano ,  Shin Nishimoto

发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Kouichi Akagi ,  Masanori Yuri ,  Takashi Nakano ,  Shin Nishimoto

IPC分类号： F01D11/00 ,  F02C7/28 ,  F16J15/32 ,  F16J15/54 ,  F16J15/447

CPC分类号： F16J15/3292

摘要： The shaft seal structure is based on a leaf seal that includes springs, disposed between the stator blades and the leaf seal ring, to force the leaf seal ring away from the rotation shaft, and pressure guiding grooves for guiding the fluid pressure, through a boundary of planar plates, to a space between the outer peripheral surface of the leaf seal ring and the inner peripheral surface of the stator blade. Also, a turbine may be provided with the leaf seal so as to reduce gas leakage from the high-pressure-region to the low-pressure-region as well as to control the frictional wear between the planar plates and the rotation shaft.

摘要翻译： 轴封结构基于叶片密封件，其包括设置在定子叶片和叶片密封环之间的弹簧，以迫使叶片密封环远离旋转轴，以及用于引导流体压力的压力引导槽，通过边界 平板的间隔设置在叶片密封环的外周面与定子叶片的内周面之间的空间。 此外，涡轮机可以设置有叶片密封件，以便减少从高压区域到低压区域的气体泄漏，以及控制平板和旋转轴之间的摩擦磨损。

公开(公告)号：US06732528B2

公开(公告)日：2004-05-11

申请号：US10114053

申请日：2002-04-03

申请人： Kouichi Akagi ,  Souichirou Tomimoto

发明人： Kouichi Akagi ,  Souichirou Tomimoto

IPC分类号： F23R306

CPC分类号： F23R3/002 ,  F23R3/04 ,  Y02T50/675

摘要： An internal cylinder which has the opening section from which combustion gas is blown out is inserted into the tail cylinder which becomes a flow path of the combustion gas, and is engaged with the tail cylinder, while securing a clearance between the edge of the opening section and the internal wall surface of the tail cylinder. Air compressed with a compressor is jetted from the clearance along the internal wall surface of the tail cylinder, and a film of cooling air is formed on the internal wall surface of the tail cylinder.

摘要翻译： 具有吹出燃烧气体的开口部的内筒被插入作为燃烧气体的流路的尾筒中，并且与尾筒接合，同时确保开口部的边缘之间的间隙 和尾缸的内壁表面。 利用压缩机压缩的空气沿着尾筒的内壁表面从间隙喷射，并且在尾筒的内壁表面上形成冷却空气膜。

公开(公告)号：US06343792B1

公开(公告)日：2002-02-05

申请号：US09525317

申请日：2000-03-13

申请人： Tanehiro Shinohara ,  Kouichi Akagi ,  Masanori Yuri ,  Masahiko Toyoda ,  Yutaka Ozawa ,  Akihiro Kawaguchi ,  Setunori Sakakibara ,  Zenichi Yoshida ,  Nobuhiro Kunitake ,  Takahiro Ohta ,  Hidehiko Nakane ,  Eisaku Ito ,  Yutaka Kawata ,  Koji Takeshita

发明人： Tanehiro Shinohara ,  Kouichi Akagi ,  Masanori Yuri ,  Masahiko Toyoda ,  Yutaka Ozawa ,  Akihiro Kawaguchi ,  Setunori Sakakibara ,  Zenichi Yoshida ,  Nobuhiro Kunitake ,  Takahiro Ohta ,  Hidehiko Nakane ,  Eisaku Ito ,  Yutaka Kawata ,  Koji Takeshita

IPC分类号： F16J1548

CPC分类号： F16J15/3288 ,  F01D11/001 ,  F05D2240/56 ,  F16J15/3292 ,  Y02T50/671

摘要： A shaft seal having a high abrasion resistance is disclosed, by which the leakage of the gas from the high-pressure side to the low-pressure side can be reduced. In the shaft seal, flexible leaves are multi-layered to form a ring shape. The shaft seal is mainly arranged around the rotation shaft of a gas turbine or the like. The relevant turbine comprises a casing, a compressor, a rotation shaft, moving blades attached to the rotation shaft, and stationary blades attached to the casing in a manner such that the stationary blades face the moving blades, wherein the shaft seals are provided between a plurality of stationary blades and the rotation shaft wherein the leaves of each shaft seal contact the rotation shaft. Under the rated operating conditions, the top ends of the leaves slightly separate from the surface of the rotation shaft due to the dynamic pressure generated by the rotation of the rotation shaft. When the turbine is not operated, the top ends of the leaves contact the rotation shaft again due to the elastic restoring force of the leaves.

摘要翻译： 公开了一种具有高耐磨性的轴封，能够降低气体从高压侧向低压侧的泄漏。 在轴封中，柔性叶片多层形成环形。 轴封主要设置在燃气轮机等的旋转轴的周围。 相关的涡轮机包括壳体，压缩机，旋转轴，附接到旋转轴的移动叶片和以固定叶片面对动叶片的方式附接到壳体的固定叶片，其中轴密封件设置在 多个固定叶片和旋转轴，其中每个轴封的叶片接触旋转轴。 在额定工作条件下，由于旋转轴的旋转产生的动态压力，叶片的顶端与旋转轴的表面稍微分开。 当涡轮机不工作时，由于叶片的弹性恢复力，叶片的顶端再次与旋转轴接触。

公开(公告)号：US07198463B2

公开(公告)日：2007-04-03

申请号：US11020182

申请日：2004-12-27

申请人： Atsuhiko Kanebako ,  Yasuhiro Ojiro ,  Kouichi Akagi ,  Keita Takamura

发明人： Atsuhiko Kanebako ,  Yasuhiro Ojiro ,  Kouichi Akagi ,  Keita Takamura

IPC分类号： F01D5/02 ,  F01D5/10 ,  F01D11/00

CPC分类号： F01D5/081 ,  F01D5/3007 ,  Y02T50/671 ,  Y02T50/676 ,  Y10S416/50

摘要： Such a rotating blade body is supplied as can prevent not only local wear and deformation but also inadvertent vibration and can maintain cooling efficiency. A rotating blade body consists of a rotor disc 2 and rotating blades 1 which are assembled so as to extend from the outer circumference of the rotor disc 2 in a radial pattern, wherein blade root portions 10 of the rotating blades 1 are engaged into blade grooves 20 which are formed along a direction of a rotating shaft on an edge of the outer circumference of the rotor disc 2. Circulation spaces 25 for the cooling air are formed along the direction of a rotating shaft between the bottom-end portions 10a of the blade root portions 10 and the bottom portions 20a of the blade grooves 20. Pushing-up members 3 which push up the rotating blades 1 outward in a radial direction are inserted into the circulation spaces 25, maintaining circulation of the cooling air.

摘要翻译： 供应这样的旋转叶片体不仅可以防止局部磨损和变形，而且可以避免无意的振动，并且可以保持冷却效率。 旋转叶片体由转子盘2和旋转叶片1构成，转子盘2以旋转叶片1的外圆周方向延伸组装，其中旋转叶片1的叶根部10与叶片槽 20是沿转子盘2的外周边缘上的旋转轴的方向形成的。冷却空气的循环空间25沿着旋转轴的方向形成在底部部分10a的底端部分10a之间 叶片根部10和叶片槽20的底部部分20a。 将旋转叶片1向径向推出的推出构件3插入到循环空间25中，保持冷却空气的循环。