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公开(公告)号：US06189891B1
公开(公告)日：2001-02-20
申请号：US09028664
申请日：1998-02-24
申请人： Yasuoki Tomita , Kazuharu Hirokawa , Hiroki Fukuno , Kiyoshi Suenaga , Yukihiro Hashimoto , Eisaku Ito
发明人： Yasuoki Tomita , Kazuharu Hirokawa , Hiroki Fukuno , Kiyoshi Suenaga , Yukihiro Hashimoto , Eisaku Ito
IPC分类号： F16J15447
CPC分类号： F01D11/02 , F01D11/001
摘要： A gas turbine seal structure provided between end portions of a moving blade platform and a stationary blade inside shroud. The sealing performance of the seal structure is improved by increasing the resistance to the flow of air. A seal plate (21, 31) is mounted to an end portion of a platform (2, 2′) of the moving blade (1) and a seal portion is formed by seal fins (22, 32) and a honeycomb seal (16, 17) disposed on a lower surface of an end portion (12a, 12b) of an inside shroud (12) of a stationary blade (11). Sealing air from the stationary blade (11) produces a high temperature in a cavity (14) and flows into a space (18, 19), and also air leaking from the cooling air of the moving blade (1) is able to escape into a high temperature combustion gas passage through a seal portion. However, since the seal plate has three seal fins (22, 32) that are inclined in a direction so as to oppose the air flow, air resistance is increased and the flow of air into the combustion gas passage is prevented.
摘要翻译： 一种燃气轮机密封结构，其设置在活动叶片平台的端部和固定叶片内部的护罩内。 通过增加对空气流动的阻力来改善密封结构的密封性能。 密封板（21,31）安装在活动叶片（1）的平台（2,2'）的端部，密封部分由密封翅片（22,32）和蜂窝密封件（16）形成 ，17），其设置在固定叶片（11）的内侧护罩（12）的端部（12a，12b）的下表面上。 来自固定叶片（11）的密封空气在空腔（14）中产生高温并流入空间（18,19），并且从活动叶片（1）的冷却空气泄漏的空气也能够逸出 通过密封部分的高温燃烧气体通道。 然而，由于密封板具有在与空气流相对的方向上倾斜的三个密封翅片（22,32），因此空气阻力增加，并且防止了进入燃烧气体通道的空气流。
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公开(公告)号：US6099244A
公开(公告)日：2000-08-08
申请号：US38376
申请日：1998-03-11
申请人： Yasuoki Tomita , Hiroki Fukuno , Kiyoshi Suenaga
发明人： Yasuoki Tomita , Hiroki Fukuno , Kiyoshi Suenaga
CPC分类号： F01D5/18 , F02D9/02 , F05D2260/22141 , Y02T10/14
摘要： In the present invention, seal air passes through a tube extending in a stationary blade from an outside shroud to an inside shroud, flows into a cavity to keep the pressure in the cavity high so as to seal the high-temperature combustion gas, and is discharged to a passage. Part of cooling air flows into an air passage to cool the leading edge portion, passes through the peripheral portion of the inside shroud to cool the same, and is discharged to a passage. The remaining cooling air flows into a passage, passes through a serpentine cooling flow path consisting of air passages having turbulators, and is discharged through air cooling holes formed at the trailing edge. The cooling air passing through the passage at the leading edge portion cools the peripheral portion of the inside shroud as well as the leading edge portion of blade, by which the cooling efficiency is increased.
摘要翻译： 在本发明中，密封空气通过从外侧护罩延伸到内侧护罩的固定刀片的管道流入空腔，以将空腔内的压力保持在较高高度以密封高温燃烧气体，并且是 排到通道。 一部分冷却空气流入空气通道以冷却前缘部分，通过内侧护罩的周边部分使其冷却，并且排出到通道中。 剩余的冷却空气流入通道，通过由具有湍流器的空气通道组成的蛇形冷却流路，并通过形成在后缘的空气冷却孔排出。 通过前缘部分的通道的冷却空气冷却内部护罩的周边部分以及叶片的前缘部分，从而冷却效率提高。
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公开(公告)号：US5997245A
公开(公告)日：1999-12-07
申请号：US64987
申请日：1998-04-23
申请人： Yasuoki Tomita , Hiroki Fukuno , Hideki Murata , Kiyoshi Suenaga
发明人： Yasuoki Tomita , Hiroki Fukuno , Hideki Murata , Kiyoshi Suenaga
CPC分类号： F01D9/041 , F01D5/187 , F05D2240/81 , F05D2260/2212
摘要： The invention relates to a cooled shroud in a gas turbine stationary blade which is able to flow a cooling air in the entire area of an inner shroud for cooling thereof. Three stationary blades are fixed to the inner shroud 2, a cover 13, 14 is provided to form a space 21 and space 22a, 22b and 22c, respectively. The cooling air is introduced through an independent air passage 3A of a leading edge of each stationary blade into the spaces 22a, 22b and 22c and is flown therefrom through a tunnel 18 and air reservoirs 19-2, 19-3 and 19-4 to be blown out of a trailing edge while cooling surfaces of the shrouds and the trailing edges. Also, a portion of the cooling air from the space 22b is flown into the space 21 through a tunnel 11, a leading edge side passage 12 and an endmost tunnel 11 and is then blown out of the trailing edge through a tunnel 18 and an air reservoir 19-1, so that the leading edge portion, the endmost portion and the endmost trailing edge portion are cooled. By use of the independent air passage, the cooling air is introduced to cool the entire area of the shroud.
摘要翻译： 本发明涉及一种能够在内护罩的整个区域内流动冷却空气的燃气轮机固定叶片中的冷却罩，用于冷却。 三个固定叶片固定在内护罩2上，盖13,14设置成分别形成空间21和空间22a，22b和22c。 冷却空气通过每个固定叶片的前缘的独立空气通道3A引入空间22a，22b和22c中，并且通过隧道18和空气储存器19-2,19-3和19-4从其中流动到 从后缘吹出，同时冷却护罩和后缘的表面。 此外，来自空间22b的一部分冷却空气通过隧道11，前缘侧通道12和最终通道11流入空间21，然后通过隧道18和空气吹出后缘 储存器19-1，使得前缘部分，最末端部分和最末端后缘部分被冷却。 通过使用独立的空气通道，引入冷却空气以冷却护罩的整个区域。
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公开(公告)号：US5971707A
公开(公告)日：1999-10-26
申请号：US109379
申请日：1998-07-02
申请人： Kazuo Uematsu , Rintaro Chikami , Yasuoki Tomita , Hiroki Fukuno , Sunao Aoki , Toshiaki Sano , Yukihiro Hashimoto , Kiyoshi Suenaga , Kazuharu Hirokawa
发明人： Kazuo Uematsu , Rintaro Chikami , Yasuoki Tomita , Hiroki Fukuno , Sunao Aoki , Toshiaki Sano , Yukihiro Hashimoto , Kiyoshi Suenaga , Kazuharu Hirokawa
CPC分类号： F01D5/18 , F01D11/006 , F05D2260/2322
摘要： A gas turbine moving blade steam cooling system in which leakage of steam for cooling a moving blade is prevented and thermal stress at a blade root end portion is mitigated. Each end portion of a blade root portion (3) of the moving blade (1) is projected so as to form a projection portions (4a, 4b). A steam passage 5 is provided between the projection portions (4a, 4b) and a steam supply port 5a and a steam recovery port (5b) are provided downwardly with the respect to the steam passage 5. The steam supply port (5a) connects to a steam supply passage (20) and the steam recovery port (5b) connects to a steam recovery passage (21). Steam is supplied from the steam supply port (5a) into a blade interior and is recovered through the steam recovery port (5b). Side surface seal plates (6, 7 and 8) are provided for preventing steam leakage. The steam cools the moving blade (1) and can be recovered without leakage and stress concentration due to heat at the projection portions (4a, 4b) of the blade root end portion.
摘要翻译： 一种燃气轮机动叶片蒸汽冷却系统，其中防止用于冷却动叶片的蒸汽泄漏并减轻叶片根部端部处的热应力。 活动叶片（1）的叶片根部（3）的每个端部突出以形成突出部分（4a，4b）。 蒸汽通道5设置在突出部分（4a，4b）和蒸汽供应口5a之间，蒸汽回收口（5b）相对于蒸汽通道5向下设置。蒸汽供应口（5a）连接到 蒸汽供应通道（20）和蒸汽回收口（5b）连接到蒸汽回收通道（21）。 蒸汽从蒸汽供给口（5a）供给到叶片内部，并通过蒸汽回收口（5b）回收。 侧面密封板（6,7和8）用于防止蒸汽泄漏。 蒸汽冷却活动叶片（1），并且可以在叶片根部的突出部分（4a，4b）处由于热量而没有泄漏和应力集中而恢复。
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公开(公告)号：US5915923A
公开(公告)日：1999-06-29
申请号：US861753
申请日：1997-05-22
申请人： Yasuoki Tomita , Taku Ichiryu , Kiyoshi Suenaga
发明人： Yasuoki Tomita , Taku Ichiryu , Kiyoshi Suenaga
CPC分类号： F01D5/187 , F05D2240/81 , F05D2260/205 , F05D2260/2322
摘要： A gas turbine moving blade in which the moving blade operating in a high temperature operating gas is cooled from its interior by steam and the steam after being used for the cooling is recovered, by use of a simple structure. A supply side passage (10), through which steam (6) is supplied directly into a cooling passage (51) of a blade leading edge side (11), is provided within a blade root portion (2) and a pocket (19). One end of the pocket is connected to the supply side passage and the other end of which is connected to a cooling passage (52) of a blade trailing edge side (12). The pocket is covered with a plate, which extends in a blade chord direction on an outer peripheral side face of the blade root portion between a blade platform and a rotor plate. Thus, efficiency of the gas turbine can be effectively enhanced.
摘要翻译： 一种燃气轮机动叶片，其中在高温操作气体中操作的移动叶片由其内部由蒸汽冷却，并且在用于冷却之后蒸汽被回收，通过使用简单的结构。 供给侧通道（10）设置在叶片根部（2）和袋（19）内，蒸汽（6）直接供给到叶片前缘侧（11）的冷却通道（51） 。 袋的一端连接到供给侧通道，另一端连接到叶片后缘侧（12）的冷却通道（52）。 该口袋被覆盖有板，其在刀片平台和转子板之间的叶片根部的外周侧面上以叶片弦方向延伸。 因此，能够有效地提高燃气轮机的效率。
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公开(公告)号：US6099253A
公开(公告)日：2000-08-08
申请号：US203680
申请日：1998-12-01
申请人： Ichiro Fukue , Eiji Akita , Kiyoshi Suenaga , Yasuoki Tomita
发明人： Ichiro Fukue , Eiji Akita , Kiyoshi Suenaga , Yasuoki Tomita
CPC分类号： F01D5/225 , F01D5/187 , Y02T50/676
摘要： A gas turbine rotor blade has a plurality of first cooling holes for the flow of a cooling gas bored in a blade portion along its lengthwise direction and a plurality of second cooling holes for flow of the cooling gas bored in a shroud along its plane direction so as to communicate with the first cooling holes, and is constructed such that the cooling gas can flow in a uniform distribution. The plurality of the first cooling holes 3 for flow of the cooling gas are bored in the blade portion 2 and the plurality of the second cooling holes 5 for flow of the cooling gas are bored in the shroud 1 along its plane direction. The second cooling holes 5 communicate with the first cooling holes 3, hole to hole, via two-step holes 4, and the second cooling holes 5 are bored alternately on the dorsal side and the ventral side of the rotor blade.
摘要翻译： 燃气轮机转子叶片具有多个第一冷却孔，用于沿其长度方向在叶片部分中钻出的冷却气体的流动，以及多个用于沿着其平面方向在护罩中钻出的冷却气体的流动的第二冷却孔， 与第一冷却孔连通，并且被构造成使得冷却气体能够以均匀的分布流动。 多个用于冷却气体流动的第一冷却孔3在叶片部分2中钻孔，并且用于冷却气体流动的多个第二冷却孔5沿其平面方向在护罩1中钻孔。 第二冷却孔5通过两步孔4与第一冷却孔3，孔对孔连通，第二冷却孔5在转子叶片的背侧和腹侧交替地钻孔。
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公开(公告)号：US6077034A
公开(公告)日：2000-06-20
申请号：US38451
申请日：1998-03-11
CPC分类号： F01D5/08 , F01D5/187 , F01D9/065 , F05D2260/2212
摘要： In the present disclosure, an air pipe extends through a stationary blade between outer and inner shrouds. Further, an air passage is directed to a lower portion of the stationary blade and is communicated with the air pipe so that a serpentine cooling passage is formed. The air enters a cavity from the air passage and is discharged to a gas passage through an air hole, a passage and a seal. Thus, the cavity is sealed at a high pressure. Cooling air is supplied from the air passage to a rotating blade through a cooling air hole, a cooling air chamber, a radial hole and a lower portion of a platform. The stationary blade is cooled by the air through the air passage. The cooling air can be supplied to the rotating blade at a low temperature and a high pressure as they are. Accordingly, the air can be also supplied to the rotating blade when a rotor is cooled by vapor.
摘要翻译： 在本公开中，空气管在外护罩和内护罩之间延伸穿过固定刀片。 此外，空气通道被引导到固定叶片的下部并且与空气管连通，从而形成蛇形冷却通道。 空气从空气通道进入空腔，并通过气孔，通道和密封件排放到气体通道。 因此，空腔在高压下被密封。 冷却空气从空气通道通过冷却空气孔，冷却空气室，径向孔和平台的下部供应到旋转叶片。 固定叶片由空气通过空气通道冷却。 冷却空气可以以低温和高压直接供给到旋转叶片。 因此，当转子被蒸汽冷却时，空气也可以供应到旋转叶片。
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公开(公告)号：US6036440A
公开(公告)日：2000-03-14
申请号：US53559
申请日：1998-04-01
申请人： Yasuoki Tomita , Hiroki Fukuno , Kiyoshi Suenaga
发明人： Yasuoki Tomita , Hiroki Fukuno , Kiyoshi Suenaga
CPC分类号： F01D5/187 , B22C21/14 , F05D2260/22141 , F05D2260/2322
摘要： The present invention relates to a gas turbine cooled moving blade in order to cool the gas turbine using steam alone. In the moving blade, two cavities are installed in the lower part of the moving blade root section of the moving blade, a steam inlet is located in one cavity, and a steam outlet is installed in the other cavity. Steam is charged from the steam inlet and passes through a serpentine cooling passage consisting of a plurality of steam passages, and discharged to the steam outlet and collected. Bypasses are located near the base of the moving blade in the middle of each steam passage, so that cold steam on the leading edge side can be led into the bypass, mixed with the hot steam which comes from the tip section side and goes into the next downstream section of the steam passage, and flows to an upstream portion of the steam passage, thereby equalizing the steam temperature and cooling the steam over the entire range from the upstream to downstream of the steam flow. A turbulator is installed in the middle of steam passage in order to generate turbulence and enhance heat transfer. Since the moving blade is evenly cooled by steam alone without using air, and the steam is then collected, the performance of the gas turbine can be enhanced.
摘要翻译： 本发明涉及一种燃气轮机冷却的动叶片，以便仅使用蒸汽冷却燃气轮机。 在移动叶片中，两个空腔安装在动叶片的动叶片根部的下部，蒸汽入口位于一个空腔中，蒸汽出口安装在另一腔中。 蒸汽从蒸汽入口充入，并通过由多个蒸汽通道组成的蛇形冷却通道，并排放到蒸汽出口并收集。 旁路位于每个蒸汽通道中间的移动叶片的基部附近，使得前缘侧的冷蒸汽可以被引导到旁路中，与来自尖端部分侧的热蒸汽混合并进入 蒸汽通道的下游下游部分，并且流到蒸汽通道的上游部分，从而在蒸汽流的上游到下游的整个范围内均衡蒸汽温度并冷却蒸汽。 湍流器安装在蒸汽通道的中部，以产生湍流并增强热传递。 由于移动叶片在不使用空气的情况下均匀地被蒸汽均匀地冷却，所以随后收集蒸汽，可以提高燃气轮机的性能。
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公开(公告)号：US06036436A
公开(公告)日：2000-03-14
申请号：US155787
申请日：1998-10-02
申请人： Hiroki Fukuno , Yasuoki Tomita , Kiyoshi Suenaga
发明人： Hiroki Fukuno , Yasuoki Tomita , Kiyoshi Suenaga
CPC分类号： F01D5/187 , F05D2240/81 , F05D2260/201 , F05D2260/202 , F05D2260/2212 , F05D2260/2322
摘要： There is provided a cooled stationary blade of a gas turbine in which the portions which can be cooled sufficiently by air are air-cooled, and the portions which are difficult to cool by air are steam-cooled, by which high temperatures can be overcome. In a stationary blade 1, there is formed a serpentine passage 3 in which cooling steam flows and an air passage 10 adjacent to the trailing edge portion and separated from the serpentine passage 3. Also, an outside shroud 4 is formed with an air cooling passage 16 at the outer edge portion and a steam impingement cooling portion 17 and an air impingement cooling portion 18 on the inside of the air cooling passage 16. An inside shroud 11 is provided with an air cooling passage 19 at the outer edge portion and shaped holes 20 formed on the inside of the air cooling passage 19. The air flowing out through the shaped holes 20 performs film cooling.
摘要翻译： PCT No.PCT / JP98 / 00206 Sec。 371日期：1998年10月2日 102（e）1998年10月2日日期PCT提交1998年1月21日PCT公布。 公开号WO98 / 34013 日本1998年8月6日提供了一种燃气轮机的冷却固定叶片，其中可由空气充分冷却的部分被空气冷却，并且由空气难以冷却的部分被蒸汽冷却，由此高 温度可以克服。 在固定叶片1中，形成有冷却蒸汽流过的蛇形通道3和与后缘部分相邻并与蛇形通道3分离的空气通道10.另外，外部护罩4形成有空气冷却通道 16和外侧边缘部分的蒸汽冲击冷却部分17和空气冷却通道16内部的空气冲击冷却部分18.内部护罩11在外边缘部分设有空气冷却通道19， 20形成在空气冷却通道19的内部。通过成形孔20流出的空气进行膜冷却。
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公开(公告)号：US5980202A
公开(公告)日：1999-11-09
申请号：US35587
申请日：1998-03-05
申请人： Yasuoki Tomita , Kiyoshi Suenaga , Taku Ichiryu
发明人： Yasuoki Tomita , Kiyoshi Suenaga , Taku Ichiryu
CPC分类号： F01D11/04 , F01D11/02 , F01D5/187 , F01D9/065 , F05D2240/81
摘要： A gas turbine stationary blade having a cooling medium passage and outer and inner shrouds in a blade section, comprising a hollow portion in the blade section, the hollow portion including a plurality of chambers divided in the chord direction, the cooling medium passage being formed by connecting the divided chambers in series, one of the chambers located in the center with respect to the chord direction being formed as a sealing air passage in order to allow a cooling medium to flow from the outside of the outer shroud to the bore of the inner shroud.
摘要翻译： 一种燃气轮机固定叶片，其具有冷却介质通道和叶片部分中的外护罩和外护罩，包括叶片部分中的中空部分，所述中空部分包括沿弦弦方向分开的多个室，所述冷却介质通道由 连接分开的室，其中一个相对于弦方向位于中心的腔室形成为密封空气通道，以便使冷却介质从外护罩的外部流动到内罩的孔 裹尸布。
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