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    • 2. 发明专利
    • Gas turbine combustor, control device for gas turbine combustor and abnormality detection method for gas turbine combustor
    • 气体涡轮搅拌机,气体涡轮搅拌机控制装置和气体涡轮搅拌机异常检测方法
    • JP2013241873A
    • 2013-12-05
    • JP2012115181
    • 2012-05-21
    • Hitachi Ltd株式会社日立製作所
    • KOGANEZAWA TOMOKIABE KAZUCHIKAMIURA KEISUKESAITO TAKEO
    • F02C9/00F01D25/00F02C7/00F02C7/22F02C9/26F23R3/00F23R3/28F23R3/34
    • PROBLEM TO BE SOLVED: To provide a means for detecting an abnormality and protecting a combustor or a gas turbine with a simple means even when an abnormality occurs for example, a part of a plurality of fuel nozzles or a part of a plurality of fuel jetting ports which are provided in a gas turbine combustor, and a section where the plurality of fuel jetting ports or the like are branched at the downstream of a fuel flow rate control valve of one fuel system.SOLUTION: A means for detecting a difference pressure between fuel pressure at the downstream of a fuel flow rate control valve provided in a fuel system and pressure in a combustor is provided. A means for specifying a fuel flow rate flowing in the fuel system is also provided. A divider for calculating ratio of difference pressure signal of the fuel system and a fuel flow rate signal of the fuel system is provided. A comparator for determining a combustor abnormality based on a signal from the divider is included.
    • 要解决的问题:为了提供一种用于检测异常并且即使在异常发生时也以简单的方式保护燃气轮机或燃气轮机的装置,例如,多个燃料喷嘴的一部分或多个燃料喷射的一部分 设置在燃气轮机燃烧器中的端口以及多个燃料喷射口等在一个燃料系统的燃料流量控制阀的下游分支的部分。解决方案:一种用于检测燃料喷射口之间的差压的装置, 提供了设置在燃料系统中的燃料流量控制阀的下游的燃料压力和燃烧器中的压力。 还提供了用于指定在燃料系统中流动的燃料流量的装置。 提供了用于计算燃料系统的差压信号的比率和燃料系统的燃料流量信号的分压器。 包括用于基于来自分频器的信号确定燃烧器异常的比较器。
    • 3. 发明专利
    • Combustor
    • 燃烧室
    • JP2012098027A
    • 2012-05-24
    • JP2012032283
    • 2012-02-17
    • Hitachi Ltd株式会社日立製作所
    • MIURA KEISUKEMOMO SATOSHIABE KAZUCHIKAKOGANEZAWA TOMOKI
    • F23R3/30F23R3/10F23R3/28
    • PROBLEM TO BE SOLVED: To provide a structure that strikes a balance between a low NOx and a combustion stability, in a gas turbine combustor.SOLUTION: The combustor 2 includes: a combustion chamber 50 from which fuel and air are supplied; an air hole plate 33, which is located in an upstream side of the combustion chamber 50, and which has a plurality of air holes 32; and a fuel nozzle 31 for supplying fuel to the air holes 32 of the air hole plate 33. The air hole plate has an inner peripheral side plane and an outer peripheral side plane, which are the planes vertical to a central axis direction of the air hole plate in a combustion chamber side, respectively. The inner peripheral side plane is located in a downstream side more than the outer peripheral side plane, and the inner peripheral side plane is connected with the outer peripheral side plane by the plane or a smooth surface.
    • 要解决的问题:提供一种在燃气轮机燃烧器中实现低NOx和燃烧稳定性之间平衡的结构。 解决方案:燃烧器2包括:供应燃料和空气的燃烧室50; 位于燃烧室50的上游侧的气孔板33,具有多个气孔32; 以及用于向空气孔板33的气孔32供给燃料的燃料喷嘴31.气孔板具有作为垂直于空气的中心轴方向的平面的内周侧面和外周侧面 分别在燃烧室侧的孔板。 内周侧面位于比外周侧平面更靠下游的一侧,内周侧面通过平面或平滑面与外周侧面连接。 版权所有(C)2012,JPO&INPIT
    • 4. 发明专利
    • Gas turbine combustor
    • 气体涡轮搅拌机
    • JP2011074802A
    • 2011-04-14
    • JP2009225888
    • 2009-09-30
    • Hitachi Ltd株式会社日立製作所
    • ASAI TOMOHIROKOIZUMI HIROMIYOSHIDA SHOHEIKOGANEZAWA TOMOKI
    • F02C3/24F02C6/08F02C7/22F02C9/00F02C9/18F02C9/40F02C9/52F23R3/06F23R3/14F23R3/26F23R3/28
    • PROBLEM TO BE SOLVED: To solve a problem that the reliability of a burner is deteriorated because the metal temperature of a swirler surface drastically changes due to non-evaporation fuel or soot accumulating on the swirler surface, in a low quality oil fuel burning gas turbine combustor.
      SOLUTION: The combustor includes a liquid fuel nozzle 20 jetting liquid fuel into a combustion chamber, a spray air nozzle 21 positioned on an outer peripheral side of the liquid fuel nozzle 20 and spraying spray air for atomizing the liquid fuel, and a swirler 17 supplying combustion air from the outer peripheral side of the spray air nozzle 21 to the combustion chamber. A purge air hole 50 for supplying purge air 104 is provided between a spray air hole 21a and a combustion air hole 24a on a swirler surface 18.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题为了解决由于旋流器表面的金属温度由于积聚在旋流器表面上的非蒸发燃料或烟灰而急剧变化的燃烧器的可靠性恶化的问题,在低质量的油燃料 燃烧燃气轮机燃烧器。 解决方案:燃烧器包括将液体燃料喷射到燃烧室中的液体燃料喷嘴20,位于液体燃料喷嘴20的外周侧的喷雾空气喷嘴21,喷射用于使液体燃料雾化的喷射空气, 旋流器17将燃烧空气从喷雾空气喷嘴21的外周侧供给到燃烧室。 在旋流器表面18上的喷射空气孔21a和燃烧空气孔24a之间设置有用于供给吹扫空气104的吹扫空气孔50.(C)2011,JPO&INPIT
    • 6. 发明专利
    • Gas turbine combustor
    • 气体涡轮搅拌机
    • JP2009014297A
    • 2009-01-22
    • JP2007178422
    • 2007-07-06
    • Hitachi Ltd株式会社日立製作所
    • ABE KAZUCHIKAKOGANEZAWA TOMOKI
    • F23R3/28F02C3/30F02C7/08
    • PROBLEM TO BE SOLVED: To provide a gas turbine combustor equipped with a fuel nozzle and a fuel nozzle header forming a coaxial jet of fuel and air wherein thermal stress generated in the fuel nozzle header is restrained and the service life is elongated. SOLUTION: The gas turbine combustor is formed so that a fuel jet injected from the plurality of fuel nozzles in the fuel nozzle header and an air jet injected from a plurality of air holes of an air hole plate are in the form of the coaxial jet. A mounting hole 40 for arranging the fuel nozzle 31 in the fuel nozzle header 30 is provided, a space part of an air layer 42 or a hollow cylindrical heat insulating layer 44 is arranged between an outer peripheral side of the fuel nozzle and an inner peripheral side of the mounting hole in the inside of the mounting hole of the fuel nozzle header, a fitting means fitted with the mounting hole of the fuel nozzle header or an end face of the fuel nozzle header opening the mounting hole is arranged on a rear end of the fuel nozzle, and the fuel nozzle is fixed to the fuel nozzle header. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种装备有燃料喷嘴和燃料喷嘴头的燃气轮机燃烧室,其形成同时喷射的燃料和空气,其中在燃料喷嘴集管中产生的热应力被限制并且使用寿命延长。 解决方案:燃气轮机燃烧器形成为使得从燃料喷嘴头中的多个燃料喷嘴喷射的燃料喷射和从空气孔板的多个气孔喷射的空气喷射的形式为 同轴射流 设置用于将燃料喷嘴31配置在燃料喷嘴集管30内的安装孔40,在燃料喷嘴的外周侧和内周侧配置有空气层42或中空圆筒状隔热层44的空间部 安装孔位于燃料喷嘴集管的安装孔的内侧,装配有燃料喷嘴集管的安装孔的装配装置或打开安装孔的燃料喷嘴集管的端面设置在后端 并且燃料喷嘴固定到燃料喷嘴头。 版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • GAS TURBINE COMBUSTOR
    • JPH09329336A
    • 1997-12-22
    • JP14888896
    • 1996-06-11
    • HITACHI LTD
    • HIRATA YOSHITAKAYOSHIDA SHOHEIINOUE HIROSHIKOGANEZAWA TOMOKIOTSUKA MASAYAMUROTA TOMOYAMORIWAKI BUNJI
    • F23R3/22F23D14/26F23R3/48
    • PROBLEM TO BE SOLVED: To prevent the burning loss of a flame propagating tube upon load operation without reducing a combustion gas temperature by a method wherein the entering of air into the flame propagating tube is prevented upon ignition while air is introduced into the flame propagating tube after finishing the ignition. SOLUTION: Combustion gas 12 is injected into a gas turbine 2 through a transition piece 10 to drive the gas turbine 2. A flame propagating tube 8 is inserted into an inner cylinder 5 and a cover 17, made of a bidirectional shape memory alloy, is installed on a plurality of cooling ports 16, formed on the flame propagating tube 8 to deform the cover 17 by the shape memory effect thereof and open or close the cooling ports 16. The cover 17 is attached so as to close the cooling ports 16 of the flame propagating tube 8 upon igniting a combustor to preclude the inflow of compressed air 11 into the flame propagating tube 8 through the cooling ports 16. Upon load operation, the cooling ports 16 are brought into opened condition and, as a result, the compressed air 11 flows into the flame propagating tube 8 through the cooling ports 16 whereby the temperature rise of the flame propagating tube 8 due to high-temperature combustion gas can be prevented.