公开(公告)号：US6092983A

公开(公告)日：2000-07-25

申请号：US202594

申请日：1998-12-17

申请人： Yasuoki Tomita ,  Sunao Aoki ,  Kiyoshi Suenaga ,  Tatsuo Ishiguro

发明人： Yasuoki Tomita ,  Sunao Aoki ,  Kiyoshi Suenaga ,  Tatsuo Ishiguro

IPC分类号： F01D5/18 ,  F01D9/02 ,  F01D9/06 ,  F01D9/04

CPC分类号： F01D9/065 ,  F01D5/187 ,  F01D9/02 ,  F05D2240/10 ,  F05D2240/81 ,  F05D2260/22141

摘要： In a cooled stationary blade assembly for a gas turbine, an interior of a blade and an inner shroud are cooled by steam to eliminate the use of air cooling. Steam passages 33A, 33B, 33C, 33D, 33E and 33F are provided in the stationary blade 30. The cooling steam 39 is introduced from the steam passage 33A on the front edge side through an outer shroud and passes, in order, through the steam passages 33B, 33C, 33D, and 33E to flow into the steam passage 33F at the rear edge side to cool the interior of the blade, and is recovered through the outer shroud from the upper portion of the steam passage 33F. A portion of the steam from the steam passage 33A is introduced into the inner shroud 31, enters to steam passages 20 from a steam introduction passage 22, branches to the right and left through both end portions, and flows out into the steam passage 33F at the rear edge from a steam discharge passage 21. Not only the interior of the blade, but also the interior of the inner shroud 31 is cooled by the steam so that the cooling air is dispensed with.

摘要翻译： PCT No.PCT / JP98 / 01958 371日期1998年12月17日第 102（e）1998年12月17日日期PCT提交1998年4月28日PCT公布。 出版物WO98 / 50684 日期1998年11月12日在用于燃气轮机的冷却固定叶片组件中，叶片和内罩的内部由蒸汽冷却以消除空气冷却的使用。 蒸汽通道33A，33B，33C，33D，33E和33F设置在固定叶片30中。冷却蒸汽39通过外护罩从前边缘侧的蒸汽通道33A引入，并依次通过蒸汽 通道33B，33C，33D和33E在后边缘侧流入蒸汽通道33F以冷却叶片的内部，并通过外护罩从蒸汽通道33F的上部回收。 来自蒸汽通道33A的蒸汽的一部分被引入内罩31，从蒸汽引入通道22进入蒸汽通道20，通过两个端部向右和向左分支，并且流出到蒸汽通道33F中 来自蒸汽排出通道21的后边缘。不仅叶片的内部，而且内部护罩31的内部都被蒸汽冷却，从而省去了冷却空气。

公开(公告)号：US06481967B2

公开(公告)日：2002-11-19

申请号：US09790975

申请日：2001-02-23

申请人： Yasuoki Tomita ,  Yukihiro Hashimoto ,  Kiyoshi Suenaga ,  Hisato Arimura ,  Shunsuke Torii ,  Jun Kubota ,  Akihiko Shirota ,  Sunao Aoki ,  Tatsuo Ishiguro

发明人： Yasuoki Tomita ,  Yukihiro Hashimoto ,  Kiyoshi Suenaga ,  Hisato Arimura ,  Shunsuke Torii ,  Jun Kubota ,  Akihiko Shirota ,  Sunao Aoki ,  Tatsuo Ishiguro

IPC分类号： F01D518

CPC分类号： F01D5/20 ,  F01D5/186 ,  F01D5/187 ,  F05D2240/81 ,  F05D2250/185 ,  F05D2260/22141

摘要： A gas turbine moving blade is provided which prevents occurrence of cracks caused by thermal stresses due to temperature differences between a blade and a platform while the gas turbine is being stopped. During steady operation time of the moving blade, cooling air enters cooling passages to flow through other cooling passages for cooling the blade, and then to flow out of the blade. A recessed portion having a smooth curved surface is provided in the platform near a blade fitting portion on the blade trailing edge side. A fillet of the blade fitting portion on the blade trailing edge side has a curved surface with curvature larger than that of a conventional blade fitting portion. A hub slot below the fillet, for blowing air, has a cross sectional area larger than other slots of the blade trailing edge. A thermal barrier coating is applied to the blade surface. By the above construction, thermal stresses due to temperature differences between the blade and the platform during gas turbine stoppage are made smaller and occurrence of cracks is prevented.

摘要翻译： 提供了一种燃气轮机动叶片，其防止在燃气轮机停止时由于叶片和平台之间的温度差引起的热应力的发生。 在运动叶片的稳定运行时间内，冷却空气进入冷却通道，流过其它冷却通道，以冷却叶片，然后流出叶片。 具有光滑曲面的凹部在叶片后缘侧的叶片嵌合部附近设置在平台上。 叶片后缘侧的叶片嵌合部的圆角具有比现有的叶片嵌合部曲率大的曲率的曲面。 在圆角下方的用于吹送空气的轮毂槽的横截面积大于叶片后缘的其它槽。 将热障涂层施加到叶片表面。 通过上述结构，使得在燃气轮机停止期间由于叶片和平台之间的温度差导致的热应力变小，并且防止了裂纹的发生。

公开(公告)号：US06290462B1

公开(公告)日：2001-09-18

申请号：US09272559

申请日：1999-03-19

申请人： Tatsuo Ishiguro ,  Koji Watanabe ,  Masaaki Matsuura ,  Kenichiro Takeishi ,  Junichiro Masada ,  Yasuoki Tomita ,  Kiyoshi Suenaga

发明人： Tatsuo Ishiguro ,  Koji Watanabe ,  Masaaki Matsuura ,  Kenichiro Takeishi ,  Junichiro Masada ,  Yasuoki Tomita ,  Kiyoshi Suenaga

IPC分类号： F01D1100

CPC分类号： F01D5/187 ,  F05D2250/185 ,  F05D2260/2212

摘要： A gas turbine cooled blade is constructed without an increase in the number of parts or time requirements, in which seal air is maintained at a lower temperature with the heat exchange rate being suppressed, and the heat transfer rate of the cooling medium in cooling passage is enhanced. A plurality of cooling passages (A, B, C, D, E) is provided in a blade, and the first row cooling passage (A) is covered at the blade inner and outer peripheries and communicates with the second row cooling passage (B) through communication holes (6) and with the main flow gas path through film cooling holes (7). The second row cooling passage (B) communicates with the blade inner peripheral cavity (10) to form a seal air supply passage. A plurality of ribs (31) are disposed on the inner wall of cooling passage (22) with a predetermined pitch (P). The ribs are arranged alternately and are inclined against cooling medium flow with respective higher first end contacting lower side faces of an immediately upstream rib at a position on both side portions of cooling passage (22). High heat transfer rate areas are formed on both side portions of cooling passage (22), and the average heat transfer rate in cooling passage is enhanced.

摘要翻译： 在不增加部件或时间要求的情况下构建燃气轮机冷却叶片，其中密封空气在热交换率被抑制下保持在较低温度，并且冷却通道中的冷却介质的传热速率为 增强。 多个冷却通道（A，B，C，D，E）设置在叶片中，第一排冷却通道（A）被覆盖在叶片的内周和外周，并与第二排冷却通道 ）通过连通孔（6）并且主流动气体通道通过膜冷却孔（7）。 第二排冷却通道（B）与叶片内周腔（10）连通，形成密封空气供给通道。 多个肋（31）以预定的间距（P）设置在冷却通道（22）的内壁上。 这些肋交替布置并且相对于冷却介质流倾斜，并且在冷却通道（22）的两侧部分的位置处，相应较高的第一端接触紧紧上游的肋的下侧面。 在冷却通道（22）的两侧形成有高的传热率区域，并且冷却通路的平均传热率提高。

公开(公告)号：US06196791B1

公开(公告)日：2001-03-06

申请号：US09202951

申请日：1998-12-23

申请人： Yasuoki Tomita ,  Hiroki Fukuno ,  Sunao Aoki ,  Kiyoshi Suenaga

发明人： Yasuoki Tomita ,  Hiroki Fukuno ,  Sunao Aoki ,  Kiyoshi Suenaga

IPC分类号： F01D518

CPC分类号： F02C7/12 ,  F01D5/081 ,  F01D5/18

摘要： In gas turbine cooled moving blade, a cooling air passage is made shortest and temperature elevation and pressure drop of the cooling air are suppressed. The cooling air passage (16) is bored in a turbine cylinder wall (15) located below a first stage stationary blade (11). The cooling air passage (16) communicates at one end (16a) with a turbine cylinder and at the other end (16b) with a space (13) between the stationary blade and the moving blade. The passage (16) is directed to an air inflow hole (6) provided in a shank portion (4) of a lower portion of a platform (2) of the moving blade (1). Cooling air is jetted from the cooling air passage (16) toward the air inflow hole (6) so as to flow into the shank portion (4) and then into the moving blade (1) for cooling thereof. An axis (17) of the cooling air passage (16) is directed so as to deviate in a rotational circumferential direction by an angle determined by the velocity of the cooling air jetted from the cooling air passage (16) and the rotational velocity of the moving blade (1) from position of the air inflow hole when the moving blade (1) stands still in row with the stationary blade (11) in rotor axial direction. Thus, the cooling air can be jetted in an optimal direction with the shortest distance, and the temperature elevation and pressure drop of the cooling air can be suppressed to minimum.

摘要翻译： 在燃气轮机冷却动叶片中，冷却空气通道最短，并且冷却空气的温度升高和压降被抑制。 冷却空气通道（16）在位于第一级固定叶片（11）下方的涡轮机气缸壁（15）中钻孔。 冷却空气通道（16）在一端（16a）与涡轮机气缸连通，另一端（16b）在固定叶片和动叶片之间具有空间（13）。 通道（16）被引导到设置在活动叶片（1）的平台（2）的下部的柄部分（4）中的空气流入孔（6）。 冷却空气从冷却空气通路（16）向空气流入孔（6）喷射，从而流入柄部（4），然后进入动叶片（1）进行冷却。 冷却空气通路16的轴线（17）被引导为以从冷却空气通路（16）喷射的冷却空气的速度和旋转速度确定的旋转圆周方向偏离角度 当动叶片（1）在转子轴向与静叶片（11）静置时，从动空气流入孔的位置移动叶片（1）。 因此，可以以最短的距离沿最佳方向喷射冷却空气，并且可以将冷却空气的温度升高和压降降低到最小。

公开(公告)号：US6089826A

公开(公告)日：2000-07-18

申请号：US180469

申请日：1998-11-09

申请人： Yasuoki Tomita ,  Sunao Aoki ,  Hiroki Fukuno ,  Kiyoshi Suenaga

发明人： Yasuoki Tomita ,  Sunao Aoki ,  Hiroki Fukuno ,  Kiyoshi Suenaga

IPC分类号： F01D5/18 ,  F02C7/18

CPC分类号： F01D5/187 ,  F05D2260/2212 ,  F05D2260/22141

摘要： A gas turbine cooled blade has leading edge turbulators. A rounded tip portion of the leading edge portion cooling passage (3) is approximated by a triangular cooling passage (1) having orthogonal turbulators (11, 12) and a smoothly curved rear portion thereof of the leading edge portion cooling passage (3) is approximated by a square cooling passage 2 having oblique turbulators (13, 14).

摘要翻译： PCT No.PCT / JP98 / 01482 Sec。 371日期：1998年11月9日 102（e）1998年11月9日PCT PCT 1998年3月31日PCT公布。 第WO98 / 44241号公报 日期1998年10月8日燃气轮机冷却叶片具有前缘湍流器。 前缘部分冷却通道（3）的圆形末端部分由具有正交湍流器（11,12）的三角形冷却通道（1）近似，其前缘部分冷却通道（3）的平滑弯曲的后部是 由具有倾斜湍流器（13,14）的方形冷却通道2近似。

公开(公告)号：US06257830B1

公开(公告)日：2001-07-10

申请号：US09230983

申请日：1999-06-02

申请人： Masaaki Matsuura ,  Kiyoshi Suenaga ,  Sunao Aoki ,  Kazuo Uematsu ,  Hiroki Fukuno ,  Yasuoki Tomita

发明人： Masaaki Matsuura ,  Kiyoshi Suenaga ,  Sunao Aoki ,  Kazuo Uematsu ,  Hiroki Fukuno ,  Yasuoki Tomita

IPC分类号： F01D518

CPC分类号： F01D5/147 ,  F01D5/187 ,  F05D2260/2322

摘要： In a steam cooling system proposed heretofore, high-pressure steam is supplied into an internal space of a blade for effecting cooling thereof with the high-pressure steam to thereby recover heat energy. This system however suffers from problems concerning the strength of the blade and the like. The present invention solves these problems and provides a gas-turbine blade which does not suffer from problems concerning the strength thereof nor problems concerning the flow of high-pressure steam. To this end, a coolant flow passage is formed within the blade extending in the longitudinal direction of the blade, and reinforcing ribs which interconnects a dorsal wall and a ventral wall of the blade is disposed within the coolant flow passage so as to extend in the flow direction of the coolant. Hence, the strength of the blade can be ensured without any obstacle to the flow of the coolant.

摘要翻译： 在迄今为止提出的蒸汽冷却系统中，将高压蒸汽供应到叶片的内部空间中，以利用高压蒸汽冷却，从而回收热能。 然而，该系统存在关于叶片等的强度的问题。 本发明解决了这些问题，提供了一种不存在与强度相关的问题的燃气轮机叶片，也不会涉及高压蒸汽的流动问题。 为此，在刀片的纵向延伸的叶片内形成冷却剂流动通道，并且将与叶片的背壁和腹壁相互连接的加强筋设置在冷却剂流动通道内，以便在 冷却液的流动方向。 因此，可以确保叶片的强度，而不会妨碍冷却剂的流动。

公开(公告)号：US06217279B1

公开(公告)日：2001-04-17

申请号：US09230820

申请日：1999-02-10

申请人： Toshishige Ai ,  Masanori Yuri ,  Yasuoki Tomita ,  Kiyoshi Suenaga ,  Sunao Aoki ,  Hiroki Fukuno

发明人： Toshishige Ai ,  Masanori Yuri ,  Yasuoki Tomita ,  Kiyoshi Suenaga ,  Sunao Aoki ,  Hiroki Fukuno

IPC分类号： F01D518

CPC分类号： F01D9/065 ,  F01D11/001 ,  F02C7/18

摘要： A sealing device for a gas turbine stator blade, in which an outer shroud (32) is mounted by heat insulating rings (32a,32b) on a blade ring (50). The blade ring (50) has a first air hole (1), which communicates with a space (53), and a second air hole (51), which communicates with a seal tube (2). The seal tube (2) is inserted into the second air hole (51), and a spring (6) is arranged between a projection (4) of the tube (2) and a retaining portion (5) of the air hole (51) to removably secure the seal tube (2). Cooling air (54) flows through the first air hole (1) to cool the shrouds and the inside of a stator blade (31) until it is released from the trailing edge of the blade. The cooling air also flows into a cavity (36) so that a high pressure can be maintained without a pressure loss because the tube (2) is independent of the space (53) in the blade ring.

摘要翻译： 一种用于燃气轮机定子叶片的密封装置，其中外护罩（32）通过隔离环（32a，32b）安装在叶片环（50）上。 叶片环（50）具有与空间（53）连通的第一空气孔（1）和与密封管（2）连通的第二空气孔（51）。 密封管（2）插入到第二空气孔（51）中，弹簧（6）布置在管（2）的突出部（4）和气孔（51）的保持部分（5）之间 ）以可拆卸地固定密封管（2）。 冷却空气（54）流过第一空气孔（1）以冷却护罩和定子叶片（31）的内部，直到其从叶片的后缘释放。 冷却空气也流入空腔（36），从而由于管（2）独立于叶片环中的空间（53）而能够保持高压而没有压力损失。

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

IPC分类号： F01D5/18 ,  F01D11/00 ,  B65H1/14 ,  F01D5/08

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。

公开(公告)号：US06092991A

公开(公告)日：2000-07-25

申请号：US35500

申请日：1998-03-05

申请人： Yasuoki Tomita ,  Taku Ichiryu ,  Kiyoshi Suenaga

发明人： Yasuoki Tomita ,  Taku Ichiryu ,  Kiyoshi Suenaga

IPC分类号： F01D5/18

CPC分类号： F01D5/187 ,  F05D2240/81 ,  F05D2260/2212

摘要： A gas turbine blade having a platform and a turbine wheel plate, in which cooling passages are arranged in a plurality of rows and connected to one another in a blade trunk section of a moving blade and a supply-side passage and a discharge-side passage are formed in a blade root section. The gas turbine blade comprises a pocket having an inlet and an outlet formed in the blade root section. The supply-side passage is connected to one of the cooling passages and the inlet of the pocket, the outlet of the pocket is connected to another of the cooling passages, and the discharge-side passage is connected to one of the cooling passages other than the ones connected individually to the supply-side passage and the pocket.

摘要翻译： 一种具有平台和涡轮机叶轮板的燃气轮机叶片，其中，冷却通道以多行排列并且在动叶片的叶片主干部分和供给侧通道和排出侧通道中彼此连接 形成在叶片根部中。 燃气轮机叶片包括具有形成在叶片根部中的入口和出口的袋。 供给侧通路连接到一个冷却通道和袋的入口，口袋的出口连接到另一个冷却通道，排出侧通道连接到除了 它们分别连接到供应侧通道和口袋。

公开(公告)号：US06196798B1

公开(公告)日：2001-03-06

申请号：US09242330

申请日：1999-02-11

申请人： Hiroki Fukuno ,  Yasuoki Tomita ,  Shigeyuki Maeda ,  Yukihiro Hashimoto ,  Kiyoshi Suenaga

发明人： Hiroki Fukuno ,  Yasuoki Tomita ,  Shigeyuki Maeda ,  Yukihiro Hashimoto ,  Kiyoshi Suenaga

IPC分类号： F01D518

CPC分类号： F01D5/186 ,  F01D5/18

摘要： A number of air-transpiration holes (4) are provided at a leading edge portion (2) of a cooled blade (1). Cooling air flowing through a cooling air passage (15) formed inside of the blade blows out to the blade surface of the leading edge portion (2) of the cooled blade (1) by way of the air-transpiration holes (4), to thereby shower-head cool the surface of the leading edge portion (2). The air-transpiration holes (4) are formed so as to extend substantially orthogonal to the leading edge surface of the cooled blade (1) such that the acute-angled portions are eliminated, whereby thermal stress is reduced and cracking is prevented.

摘要翻译： 在冷却叶片（1）的前缘部分（2）处设置有多个空气蒸发孔（4）。 流过形成在叶片内的冷却风道（15）的冷却空气通过空气蒸发孔（4）吹向冷却叶片（1）的前缘部（2）的叶片表面，至 从而喷淋头对前缘部分（2）的表面进行冷却。 空气蒸发孔（4）形成为基本上垂直于冷却叶片（1）的前缘表面延伸，使得锐角部分被消除，从而减少热应力并防止开裂。