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：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：US6079946A

公开(公告)日：2000-06-27

申请号：US44746

申请日：1998-03-19

申请人： Kiyoshi Suenaga ,  Sunao Aoki ,  Kazuo Uematsu

发明人： Kiyoshi Suenaga ,  Sunao Aoki ,  Kazuo Uematsu

IPC分类号： F01D5/18

CPC分类号： F01D5/187 ,  F05D2240/81 ,  F05D2260/2322

摘要： In the cooling system for the gas turbine blade, the apparatus of the present disclosure ensures cooling of the trailing edge part of the blade for which machining is difficult, while aiming at improvement of the thermal efficiency. The steam cooling structure for carrying out heat recovery-type steam cooling is employed to the leading edge part and the central part of the blade where machining is easy because of its large thickness, and the convection cooling end film cooling are employed for the trailing edge part of the blade where the thickness is small, using steam cooling and air cooling at the same time.

摘要翻译： 在用于燃气轮机叶片的冷却系统中，本公开的装置确保了难以加工的叶片的后缘部分的冷却，同时旨在提高热效率。 用于进行热回收式蒸汽冷却的蒸汽冷却结构用于叶片的前缘部分和中心部分，其中由于其厚度大而容易加工，并且对流冷却端膜冷却用于后缘 厚度较小的叶片部分，同时使用蒸汽冷却和空气冷却。

公开(公告)号：US5954475A

公开(公告)日：1999-09-21

申请号：US913077

申请日：1997-09-08

申请人： Masaaki Matsuura ,  Kiyoshi Suenaga ,  Kazuo Uematsu

发明人： Masaaki Matsuura ,  Kiyoshi Suenaga ,  Kazuo Uematsu

IPC分类号： F01D9/02 ,  F01D5/18 ,  F01D9/04 ,  F02C7/16

CPC分类号： F01D5/187 ,  F01D5/182 ,  F05D2240/81 ,  F05D2260/205 ,  F05D2260/232 ,  F05D2260/2322

摘要： A gas turbine stationary blade, having a simple structure in which sufficient cooling is achieved and the drop in pressure of cooling vapor is decreased so that the turbine efficiency is prevented from lowering. The shape of a vapor passage is simplified to prevent the drop in pressure because an outer shroud (3) of the stationary blade and a blade unit (2) are cooled with vapor, while an inner shroud (4) is cooled with the air supplied from another system.

摘要翻译： PCT No.PCT / JP96 / 03696 Sec。 371日期：1997年9月8日 102（e）1997年9月8日PCT PCT 1996年12月19日PCT公布。 第WO97 / 25522号公报 日期1997年7月17日具有实现充分冷却和冷却蒸气压力下降的简单结构的燃气轮机固定叶片减少，从而防止涡轮效率降低。 蒸汽通道的形状被简化以防止压力下降，因为固定叶片的外护罩（3）和叶片单元（2）被蒸气冷却，而内护罩（4）被供应的空气冷却 从另一个系统。

公开(公告)号：US06442927B1

公开(公告)日：2002-09-03

申请号：US09381974

申请日：1999-10-04

申请人： Masaaki Matsuura ,  Kiyoshi Suenaga ,  Kazuo Uematsu

发明人： Masaaki Matsuura ,  Kiyoshi Suenaga ,  Kazuo Uematsu

IPC分类号： F02C618

CPC分类号： F01K23/10 ,  F01D5/187 ,  F02C7/16 ,  F05D2260/205 ,  F05D2260/2322 ,  Y02E20/16

摘要： A combined cycle power plant has a gas turbine and an exhaust heat recovery boiler to which exhaust gas from the gas turbine is supplied. The exhaust heat recovery boiler is configured to generate steam for cooling. The combined cycle power plant has several elements: a cooling steam supply pipe; a cooling steam recovery pipe; and a cooling steam connecting pipe. The cooling steam connecting pipe has a cross-sectional area larger than cross-sectional areas of the cooling steam supply pipe and the cooling steam recovery pipe so that a pressure drop thereacross, as a whole, is small.

摘要翻译： 联合循环发电厂具有供给来自燃气轮机的废气的燃气轮机和废热回收锅炉。 废热回收锅炉配置成产生用于冷却的蒸汽。 联合循环发电厂有几个要素：冷却蒸汽供应管; 冷却蒸汽回收管; 和冷却蒸汽连接管。 冷却蒸汽连接管的截面积大于冷却蒸汽供给管和冷却蒸汽回收管的截面面积，因此整体上的压降较小。

公开(公告)号：US06530208B1

公开(公告)日：2003-03-11

申请号：US09865616

申请日：2001-05-29

申请人： Hideaki Sugishita ,  Sunao Aoki ,  Kazuo Uematsu ,  Keizo Tsukagoshi

发明人： Hideaki Sugishita ,  Sunao Aoki ,  Kazuo Uematsu ,  Keizo Tsukagoshi

IPC分类号： F02C600

CPC分类号： F01K23/106 ,  F02C7/16 ,  F05D2260/2322 ,  Y02E20/16 ,  Y02P80/152

摘要： A combined cycle system includes a gas turbine (8) having a generator (1), a compressor (2), a combustor (3), a blade cooling air cooler (4), a fan (5), and a turbine (6); a steam turbine (29) having a high pressure turbine (21), an intermediate pressure turbine (22), and a low pressure turbine (23); and a waste heat recovery boiler (9). Saturated water from a high pressure pump (27) is partially led into a heat exchanger (110) for cooling steam to be supplied into a moving blade (52) and a stationary blade (53). Also, outlet steam from the high pressure turbine (21) is led into the moving blade (52), the stationary blade (53), and the combustor transition piece (54) for cooling thereof, and the steam is then supplied to an inlet of the intermediate pressure turbine (22). Further, the outlet steam from the high pressure turbine (21) is led into the turbine (6) for cooling blades thereof. The steam used for cooling the stationary blade is supplied to the inlet of the intermediate pressure turbine (22), and the steam used for cooling the moving blade is supplied to a reheater (20). Thus, the efficiency is enhanced.

公开(公告)号：US6089012A

公开(公告)日：2000-07-18

申请号：US31814

申请日：1998-02-27

申请人： Hideaki Sugishita ,  Sunao Aoki ,  Hidetaka Mori ,  Kazuo Uematsu ,  Kazuharu Hirokawa

发明人： Hideaki Sugishita ,  Sunao Aoki ,  Hidetaka Mori ,  Kazuo Uematsu ,  Kazuharu Hirokawa

IPC分类号： F01D5/18 ,  F01D9/02 ,  F01K23/10 ,  F02C7/16 ,  F02C7/18 ,  F02C7/224 ,  F02C6/18 ,  F02C7/12

CPC分类号： F02C7/224 ,  F01K23/106 ,  F02C7/16 ,  F05D2220/72 ,  F05D2260/205 ,  F05D2260/2322 ,  Y02E20/16

摘要： A steam cooled gas turbine system in a combined power plant, constituted such that gas turbine blade cooling steam and combustor tail pipe cooling steam are bled from an outlet of a high pressure turbine, passed through a fuel heater for heat exchange with fuel, sprayed with water to be cooled to predetermined temperatures, and then supplied to cooling areas, whereby the cooling steam supply temperatures can be maintained at predetermined values during partial load operation as well as rated operating to achieve effective cooling.

摘要翻译： 一种联合发电厂的蒸汽冷却燃气轮机系统，其构造为使得燃气轮机叶片冷却蒸汽和燃烧器尾管冷却蒸汽从高压涡轮机的出口排出，通过燃料加热器与燃料进行热交换，喷射 水被冷却到预定温度，然后供应到冷却区域，从而在部分负荷运行期间冷却蒸汽供应温度可以保持在预定值，以及额定运行以实现有效冷却。

公开(公告)号：US6065931A

公开(公告)日：2000-05-23

申请号：US035614

申请日：1998-03-05

申请人： Kiyoshi Suenaga ,  Yoshikuni Kasai ,  Kazuo Uematsu

发明人： Kiyoshi Suenaga ,  Yoshikuni Kasai ,  Kazuo Uematsu

IPC分类号： F01D5/18 ,  F01D5/08

CPC分类号： F01D5/187 ,  F05D2240/81 ,  F05D2260/205 ,  F05D2260/2322

摘要： A gas turbine moving blade, which has a blade root section, a wing section, and a platform section, comprises a refrigerant supply port provided in the blade root section, a refrigerant recovery port provided in the blade root section, a serpentine passage provided in the wing section and communicating with the refrigerant supply port and the refrigerant recovery port, and a convection-cooling passage provided in the platform section and allowing sealing air and a refrigerant for cooling the platform section by convection to pass therein.

摘要翻译： 具有叶片根部，翼部和平台部的燃气轮机动叶片包括设置在叶片根部的制冷剂供给口，设置在叶片根部的制冷剂回收口，设置在叶片根部的蛇形通路 所述翼部与所述制冷剂供给口和所述制冷剂回收口连通，所述对流冷却通路设置在所述平台部并且允许密封空气和用于通过对流冷却所述平台部的制冷剂通过。

公开(公告)号：US6019573A

公开(公告)日：2000-02-01

申请号：US15211

申请日：1998-01-29

申请人： Kazuo Uematsu ,  Kiyoshi Suenaga

发明人： Kazuo Uematsu ,  Kiyoshi Suenaga

IPC分类号： F02C7/16 ,  F02C7/18 ,  F01D25/08 ,  F01D5/08 ,  F01D5/18

CPC分类号： F02C7/18 ,  F02C7/16 ,  F05D2260/2322

摘要： In a steam cooled type gas turbine, taking the effect of efficiency and power output into consideration, a rear stage is sufficiently cooled by air in place of cooling all of the stages by steam. In a rotor of the gas turbine having a steam cooled moving blade, a moving blade disposed in a front stage is cooled by steam, and a moving blade disposed at the rear stage is cooled by cooling air through a stationary blade disposed in front of the moving blade at the rear stage.

摘要翻译： 在蒸汽冷却型燃气轮机中，考虑到效率和功率输出的影响，后段通过空气充分冷却，代替通过蒸汽冷却所有级。 在具有蒸汽冷却的动叶片的燃气轮机的转子中，设置在前级的动叶片被蒸汽冷却，并且设置在后级的动叶片被冷却空气通过设置在 在后台移动叶片。

公开(公告)号：US06315518B1

公开(公告)日：2001-11-13

申请号：US09230751

申请日：1999-02-01

申请人： Kazuo Uematsu ,  Kiyoshi Suenaga

发明人： Kazuo Uematsu ,  Kiyoshi Suenaga

IPC分类号： F01D518

CPC分类号： F02C7/16 ,  F01D5/186 ,  F01D5/187 ,  F01D11/04 ,  F05D2240/81 ,  F05D2260/201 ,  F05D2260/205 ,  F05D2260/2212 ,  F05D2260/22141 ,  F05D2260/2322

摘要： In a stationary blade of a gas turbine, the pressure resisting strength can be decreased by using low-pressure cooling air, and effective cooling can be performed by means of a simple construction. An inside shroud 1 and an outside shroud 2 are cooled by cooling air passing through an impingement plate. A trailing edge portion of a blade portion 6, which is thin in shape, is cooled by cooling air flowing in an air passage 10. Part of this air is discharged through a hole 12 on the side of the inside shroud 1 as inside seal air for a combustion gas passage.

摘要翻译： 在燃气轮机的固定叶片中，可以通过使用低压冷却空气来降低耐压强度，并且可以通过简单的结构进行有效的冷却。 内部护罩1和外部护罩2由通过冲击板的冷却空气冷却。 叶片部分6的后缘部分的形状很薄，由在空气通道10中流动的冷却空气冷却。这种空气的一部分通过作为内部密封空气的内侧护罩1侧的孔12排出 用于燃烧气体通道。