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    • 1. 发明专利
    • Gas turbine
    • 燃气轮机
    • JP2012107628A
    • 2012-06-07
    • JP2012015763
    • 2012-01-27
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • UECHI HIDEYUKISUGISHITA HIDEAKI
    • F02C7/18F01D9/02
    • PROBLEM TO BE SOLVED: To provide a technique for effectively preventing burning-out of a gap between a tail tube of a combustor and a stator vane shroud caused by pressure nonuniformity of a combustor gas in a circumferential direction of a stator vane cascade.SOLUTION: This gas turbine includes the combustor 3 for ejecting the combustor gas 3a from the tail tube 4, and a turbine to which the combustor gas 3a is supplied from the tail tube 4. The turbine includes a stator vane 5, and the stator vane shroud 6 positioned downstream of the tail tube 4 and supporting the stator vane 5. A rear end portion 4a of the downstream side of the tail tube 4 has an opening 4c for ejecting cooling air 13 toward a front end portion 6a of the upstream side of the stator vane shroud 6. A cooling air passage 4b for supplying cooling air to the opening 4c has a tapered shape toward the opening 4c.
    • 要解决的问题:提供一种用于有效地防止燃烧器尾管与定子叶片护罩之间的间隙燃烧的技术,其由定子叶片级联的周向上的燃烧器气体的压力不均匀性引起 。 解决方案:该燃气轮机包括用于从尾管4喷射燃烧器气体3a的燃烧器3和从尾管4供给燃烧器气体3a的涡轮机。涡轮机包括定子叶片5和 定子叶片护罩6位于尾管4的下游并支撑定子叶片5.尾管4的下游侧的后端部分4a具有用于将冷却空气13朝着前端部分6a排出的开口4c 定子叶片护罩6的上游侧。用于向开口4c供应冷却空气的冷却空气通道4b具有朝向开口4c的锥形形状。 版权所有(C)2012,JPO&INPIT
    • 2. 发明专利
    • Gas turbine
    • 燃气轮机
    • JP2006105076A
    • 2006-04-20
    • JP2004295562
    • 2004-10-08
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • UECHI HIDEYUKISUGISHITA HIDEAKI
    • F01D9/02F01D11/00F02C7/18F02C7/28
    • PROBLEM TO BE SOLVED: To provide technology effectively preventing burning of a part in a gap between a tail pipe of a combustor and a stationary blade shroud due to unevenness of pressure of combustion gas in a circumference direction of a stationary blade row. SOLUTION: This gas turbine is provided with the combustor 3 jetting combustion gas 3a out of the tail pipe 4 and a turbine having combustion gas 3a supplied from the tail pipe 4. The turbine includes a stationary blade 5 and a stationary blade shroud 6 positioned in a downstream side of the tail pipe 4 and supporting the stationary blade 5. An opening 4c jetting cooling air 13 out toward an upstream side end part 6a of the stationary blade shroud 6 is provided on a downstream end part 4a of the tail pipe 4. Intrusion of combustion gas 3a to the gap between the tail pipe 4 and the stationary blade shroud 6 by jetting cooling air 13 toward the upstream side end part 6a of the stationary blade shroud 6 from the downstream side end part 4a of the tail pipe 4. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供有效防止由于燃烧气体在固定叶片排的圆周方向上的压力不均匀而使燃烧器尾管与固定叶片罩之间的间隙燃烧的技术。 解决方案:该燃气轮机设置有燃烧器3,其从尾管4排出燃烧气体3a,并且具有从尾管4供给的燃烧气体3a的涡轮。涡轮机包括固定叶片5和固定叶片罩 6设置在尾管4的下游侧并支撑固定叶片5.向尾部的下游端部4a设置向固定叶片护罩6的上游侧端部6a喷射冷却空气13的开口4c 通过从尾部的下游侧端部4a向固定叶片护罩6的上游侧端部6a喷射冷却空气13,将燃烧气体3a入口到尾管4和固定叶片护罩6之间的间隙 管道4.版权所有(C)2006,JPO&NCIPI
    • 3. 发明专利
    • Dual fluid gas turbine
    • 双流体涡轮机
    • JP2005325739A
    • 2005-11-24
    • JP2004143584
    • 2004-05-13
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • UECHI HIDEYUKISUGISHITA HIDEAKI
    • F01K23/10F02C3/30F02C6/18F02C7/18F02C7/262F02C9/00
    • Y02E20/16
    • PROBLEM TO BE SOLVED: To provide a dual fluid gas turbine, in which high output can be provided at low cost, and in which cooling effect similar to that in steam cooling can be achieved in simple structure. SOLUTION: By using steam before injection of a steam injection turbine, high-temperature parts such as the turbine and inner walls of a combustor can be effectively cooled. By using steam before injection for cooling the high-temperature parts, cooling effect similar to that in a steam-cooled gas turbine can be achieved. Steam used for cooling is emitted to a combustion gas passage in the end, so that application of steam cooling to rear end parts, blade end parts, and shroud end parts becomes easy. This enables cooling of film, which provides excellent cooling effect compared to the steam-cooled gas turbine. Since steam used for cooling is emitted to the combustion gas passage in the end, steam released to the combustion gas passage works in the turbine, thereby output of the dual fluid gas turbine is increased. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种可以以低成本提供高输出的双流体燃气轮机,其中可以以简单的结构实现与蒸汽冷却相似的冷却效果。 解决方案:通过在喷射蒸汽喷射涡轮机之前使用蒸汽,可以有效地冷却诸如涡轮机和燃烧器内壁的高温部件。 通过在注射前使用蒸汽来冷却高温部件,可以实现与蒸汽冷却燃气轮机相似的冷却效果。 用于冷却的蒸汽最终被排放到燃烧气体通道,使得对后端部分,叶片端部和护罩端部的蒸汽冷却的应用变得容易。 这使得能够冷却膜,与蒸汽冷却的燃气轮机相比,其提供了优异的冷却效果。 由于用于冷却的蒸汽最终被排放到燃烧气体通道,所以释放到燃烧气体通道的蒸汽在涡轮机中运行,从而增加双流体燃气轮机的输出。 版权所有(C)2006,JPO&NCIPI
    • 5. 发明专利
    • GAS TURBINE SEGMENT
    • JP2002213207A
    • 2002-07-31
    • JP2001006451
    • 2001-01-15
    • MITSUBISHI HEAVY IND LTD
    • SUGISHITA HIDEAKIARIMURA HISATOTOMITA YASUMOTO
    • F01D5/14F01D9/04F01D11/08F01D25/24
    • PROBLEM TO BE SOLVED: To restrain a local temperature rise of divided pieces of gas turbine segment. SOLUTION: The gas turbine segment 10 is disposed at a position opposite to a tip of a moving blade 8 in an inner periphery of a gas turbine casing 1. The gas turbine segment is constituted by divided pieces 11 annularly arranged in a circumferential direction along an inner peripheral face of the turbine casing, and the divided pieces are spaced from each other at predetermined intervals of spaces 13 in the circumferential direction. In end faces 11a, 11b in the circumferential direction of each divided piece 11, the end face 11a upstream from a moving blade rotating direction R is connected to a divided piece inner peripheral face 11c with a gentle inclined face 11f. Since a whirling flow of combustion gas FR accompanied by rotations of the moving blade flows along the inclined face 11f when the moving blade passes through the space 13, the whirling flow of combustion gas FR does not collide with the end face 11a. Therefore, increase in heat transfer coefficient at the end face 11 caused by the collision is prevented to restrain the local temperature rise.
    • 6. 发明专利
    • HYDROGEN COMBUSTION TURBINE PLANT
    • JPH1193621A
    • 1999-04-06
    • JP25209997
    • 1997-09-17
    • MITSUBISHI HEAVY IND LTD
    • UEMATSU KAZUOMORI HIDETAKASUGISHITA HIDEAKI
    • F01K25/00F02C3/22F02C3/34F02C7/16
    • PROBLEM TO BE SOLVED: To provide a hydrogen combustion turbine plant using a cooling system capable of reducing a decrease rate of power generating end efficiency in the hydrogen combustion turbine plant in which high temperature steam is generated by combustion of hydrogen and oxygen to drive a turbine, and the steam cools a turbine blade. SOLUTION: High temperature steam produced by combustion of hydrogen and oxygen in a combustor 104 is introduced into a first turbine 105, and its exhaust gas flows to heat exchangers 103, 106, 107, 108, to be supplied to a low pressure compressor 100. A part of the exhaust gas of the first turbine 105 through in the third heat exchanger 107 is extracted, to be supplied to the second turbine 109. Steam heated at the heat exchangers 108, 107, 106 is introduced into a third turbine 110. A part of exhaust gas of the third turbine 110 is introduced into the first turbine 105 as first turbine cooling steam 119, and further, a part of the residual exhaust gas of the third turbine 110 is supplied to the first turbine 105 as first turbine recovery type cooling steam 120, followed by heating, to be thus recovered at an inlet of the combustor 104.
    • 7. 发明专利
    • STEAM-COOLED GAS TURBINE SYSTEM
    • JPH10159584A
    • 1998-06-16
    • JP31945496
    • 1996-11-29
    • MITSUBISHI HEAVY IND LTD
    • SUGISHITA HIDEAKI
    • F01D5/18F01D9/02F01K23/10F02C7/18
    • PROBLEM TO BE SOLVED: To sufficiently increase an equivalent ratio of air in a combustion region so as to ensure stable combustion of a combustor by forming medium pressure generating steam in an exhaust heat recovery boiler as cooling steam of a tail cylinder of the combustor, and recovering cooling steam whose temperature is raised after cooling, into an intermediate pressure turbine. SOLUTION: In a combined power generating plant provided with a gas turbine 01 and an exhaust heat recovery boiler 02 which is assembled with a steam turbine plant and which is arranged for generating driving steam of a steam turbine utilizing gas turbine exhaust heat, steam generated in an intermediate pressure drum 2 by a tail cylinder cooling steam piping 16 is supplied to a tail cylinder of a combustor 6. A generating rate of a drain in the tail cylinder cooling piping 16 of the combustor 6 is suppressed to the utmost in a small level by using steam having a temperature few higher than a saturation temperature of pressure in the intermediate pressure drum 2. Steam heated at the tail cylinder of the combustor 6 is heated to the nearly same temperature as that of steam generated in a re-heater RH of an exhaust heat recovery boiler 02, and power is recovered by the intermediate pressure turbine 8 after mixing its steam through a tail cylinder cooling steam recovering piping 17.
    • 10. 发明专利
    • HYDROGEN OXYGEN COMBUSTION TURBINE PLANT
    • JPH07208192A
    • 1995-08-08
    • JP234294
    • 1994-01-14
    • MITSUBISHI HEAVY IND LTD
    • UEMATSU KAZUOSUGISHITA HIDEAKI
    • F02B43/10F01K7/38F01K7/44F01K25/00F02C3/34F02C6/00
    • PURPOSE:To enhance freedom in bottoming cycle, and concurrently enhance cycle efficiency by letting a bottoming cycle (second closed cycle) be so constitut ed as to be separated from topping cycle (first closed cycle). CONSTITUTION:A compressor 50, a first O2, H2 combustor 51, and a first turbine 52 are provided so as to be formed into a topping cycle acting as a first closed cycle, and a second turbine 56, a condenser 64 and a second O2, H2 combustor 55 are provided so as to be formed into a bottoming cycle acting as a second closed cycle. The downstream side of the first turbine 52 communicates with the second turbine 56 and a condenser 62 by a communicating line 58, and a third turbine 59 is interposed between the communicating line 58 and the condenser 64. Besides, a first heat exchanger 54 is provided, by which heat is exchanged between the downstream section of the first turbine 52 and the upstream section of the second O2, H2 combustor 55, and a second heat exchanger 63 is concurrently interposed between the first heat exchanger 54 and the condenser 64, wherein heat exchanged by the second heat exchanger between the upstream and downstream sides of the condenser 64.