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    • 31. 发明专利
    • Gas turbine combustor
    • 气体涡轮搅拌机
    • JPS59208130A
    • 1984-11-26
    • JP8179283
    • 1983-05-12
    • Hitachi Ltd
    • HIROSE FUMIYUKIIIZUKA NOBUYUKI
    • F02C3/14F01D9/02F23R3/16
    • F01D9/023
    • PURPOSE:To prevent a movable blade from being damaged by stirring a combustion gas at a combustion gas passage of a transition piece for making a gas temperature distribution complex to disturb a heat cycle pattern. CONSTITUTION:Several rotating panels 31 are provided in a gas passage part of a transition piece 32 leading a combustion gas of a gas turbine combuster to a turbine for stirring the combustion gas 33 to disturb the temperature distribution. The combustion gas rotating panel 31 (an upper stream side rotating panel) is provided in a radial and an axial direction at a gas flowin part, and at its lower stream, a rotating panel 34 (a lower stream side rotating panel) is provided to generate a reverse swirl. This construction permits to disturb a regular temperature distribution of the combustion gas 33 to eliminate the worry of damages and faults caused from a heat weariness and the like by a heat cycle pattern.
    • 目的:通过在过渡件的燃烧气体通道上搅拌燃烧气体来防止可动刀片的损坏,以使气体温度分布复合以扰乱热循环模式。 构成:在过渡片32的气体通道部分设有若干旋转面板31,其将燃气轮机燃烧器的燃烧气体引导到涡轮机,用于搅拌燃烧气体33以扰乱温度分布。 燃烧气体旋转面板31(上游侧旋转面板)在气流部分沿径向和轴向设置,并且在其下游处设有旋转面板34(下游侧旋转面板) 产生反向漩涡。 这种结构允许干扰燃烧气体33的常规温度分布,以消除由热循环模式引起的热疲劳等引起的损坏和故障的担心。
    • 35. 发明专利
    • COMBUSTOR FOR GAS TURBINE
    • JPS57202431A
    • 1982-12-11
    • JP8568381
    • 1981-06-05
    • HITACHI LTD
    • SATOU ISAOISHIBASHI YOUJIIIZUKA NOBUYUKI
    • F23R3/06
    • PURPOSE:To perform an effective reduction with a less air amount, by a method wherein, in a combustion for gas turbine using LNG as fuel, fuel and air are evenly mixed by a first and a second mixing eddy generating means. CONSTITUTION:Fuel 39, such as LNG, is jetted to an inlet of a top combustion chamber 11 from a fuel nozzle 5, combustiom air 41 and fuel 39 are mixed by an air revolving device 6, and the mixture gas is ignited by an ignition plug for burning. In the top combustion chamber 11, the chamber is formed in a smaller diameter than that of a main combustion chamber33, and this promotes the mixture of the fuel 39 and the fuel air 41, and shortens a combustion reaction time. During said combustion, revolving airs 43 and 49 flow from a connecting direction to the inside of each top combustion chamber 11 through revolving air intriducing holes 15 and 18, of which a first and a second mixture eddy air generating means consists, and a part of fuel gas flows backward in the diretion of a fuel nozzle 5 through the force of revolving airs 45, 49. This increases a force of a so-called counter-flow 43 and improves a flame-holding property.
    • 36. 发明专利
    • HOLLOW PIPE ELECTRODE
    • JPS57107739A
    • 1982-07-05
    • JP18044080
    • 1980-12-22
    • HITACHI LTD
    • IIZUKA NOBUYUKIKUROUME HIROSHIUCHIDA MASAHIRONEZU YUUJI
    • B23H9/14
    • PURPOSE:To prevent short circuit with the article to be worked during working process and improve the working efficiency by installing a noninducting guide means in the top edge outer diameter part, in the hollow pipe electrode for working a deep hole by means of the electrochemical effect such as electric discharge, electrolysis etc. CONSTITUTION:The pads 2 as guide means are installed in the top edge outer diameter part of a hollow pipe electrode 1. The pads 2 are arranged, for example at four places at equal intervals on the circumference, and each pad 2 forms an arcuate form, and the thickness t is set nearly equal to the electrolytic gap for discharging the electrolytic liquid and worked sludge from a worked article. As the pads 2 are interposed between the inner diameter of a hole and the top edge outer diameter part of the hollow pipe electrode 1 during boring work, the pads 2 guide the electrode 1 along the inner diameter of the hole, and vibration at the top edge can be suppressed, and at the same time, the top edge part contacts with the inner wall of the hole of the worked article, and generation of short circuit failure is prevented.
    • 37. 发明专利
    • Combustor for gas turbine
    • 燃气轮机
    • JPS5782624A
    • 1982-05-24
    • JP15825080
    • 1980-11-12
    • Hitachi Ltd
    • MINAGAWA YOSHIMITSUSATOU ISAOTAMURA ZENSUKEIIZUKA NOBUYUKI
    • F23R3/02F23R3/42
    • PURPOSE: To reduce vibration of combustion and to improve flame retaining performance, by forming a main combustion chamber liner in a stepped structure having an enlarged head portion and a contracted rear portion, so that interference between primary and secondary combustion flames may not be caused and a space for forming the secondary combustion flame can be enlarged.
      CONSTITUTION: In a main combustion chamber liner 2, a stepped main combustion chamber liner 17 is provided which has an enlarged head portion where a main combustion chamber nozzle 5 and a main chamber swirl producing means 6 are disposed and a contracted portion located on the upstream side of diluting air ports 4. Further, an annular spacer 16 is disposed between the outer circumference of a subsidiary combustion chamber liner 3 and the inner circumference of the swirl producing means 6. With such an arrangement, it is enabled to reduce vibration of combustion by eliminating interference between primary combustion flame 108 and secondary combustion flame 109 and to improve flame retaining performance by developing sufficient recirculating flow 110 on the outside of the secondary combustion flame 109.
      COPYRIGHT: (C)1982,JPO&Japio
    • 目的:为了减少燃烧的振动和提高火焰保持性能,通过在具有扩大的头部和收缩的后部的台阶结构中形成主燃烧室衬套,使得可能不会引起一次和二次燃烧火焰之间的干扰, 可以扩大用于形成二次燃烧火焰的空间。 构成:在主燃烧室衬套2中,设置阶梯式主燃烧室衬套17,其具有扩大的头部,主燃烧室喷嘴5和主室旋流产生装置6设置在上游,并且收缩部位于上游 此外,环形间隔件16设置在辅助燃烧室衬套3的外周和涡流产生装置6的内周之间。通过这种布置,能够减少燃烧的振动 通过消除主燃烧火焰108和二次燃烧火焰109之间的干扰并且通过在二次燃烧火焰109的外部形成足够的再循环流110来改善火焰保持性能。
    • 38. 发明专利
    • IGNITING DEVICE FOR COMBUSTOR OF GAS TURBINE OR THE LIKE
    • JPS5650223A
    • 1981-05-07
    • JP12392679
    • 1979-09-28
    • HITACHI LTD
    • HIROSE FUMIYUKIIIZUKA NOBUYUKI
    • F02C7/266F23R3/42H01T1/00
    • PURPOSE:To improve fuel igniting performance and to prevent falling of a sealer, by coupling the sealer and the rod of the igniting device frictionally by means of a plate spring. CONSTITUTION:At the position where the igniting device 47 is fixed, the sealer 51 is disposed between an inner sleeve 40 and an outer sleeve 41 of a combustor in the manner that one end of the sealer 51 is held in contact with a pipe 44. Length l of the sealer 51 is so selected that it can be moved axially of the igniting device 47 a distance (m) between the outer surface of the inner sleeve 49 and the inner surface of a flange 48 of the igniting device 47. Inside the sealer 51, there is provided the plate spring 52 having a resilient force exerted radially of the sealer 51. At the central part of the spring 52, there is inserted the rod 49 of the igniting device 47, in the manner that the rod 49 and sealer 51 are coupled frictionally by the resilient force of the spring 52. Since, with such an arrangement, any clearance is not formed between the sealer 51 and the rod 49, it is enabled to improve the igniting performance.
    • 39. 发明专利
    • APPRATUS FOR PROTECTING COMBUSTION OF GAS TURBINE
    • JPS55164735A
    • 1980-12-22
    • JP7237879
    • 1979-06-11
    • HITACHI LTD
    • KUNIHIRO MASATSUGUIIZUKA NOBUYUKI
    • F02C9/28
    • PURPOSE:To prevent overheating of combustion of gas turbine through provision of a means for detecting the outlet pressure of compressor, means for detecting the temperature of exhaust gas, means for detecting the pressure loss at the inlet of compressor, means for detecting the pressure loss of exhaust gas, fuel flow controller and operator. CONSTITUTION:In the apparatus of this invention, there are provided a means 10 for detecting the outlet pressure of compressor 3 and a means 9 for detecting the temperature of exhaust gas at the outlet of turbine 5. The apparatus further comprises a means 15 for detecting the pressure loss in the inlet passage of compressor 3 and a means 14 for detecting the pressure loss in the exhaust passage of turbine 5. There is further provided an operator 18 to which outputs of the above various means are afforded. The operator 18 controls operation of the fuel flow controller 12 by calculating the combustion temperature of combustor 4. With such an arrangement, it is enabled to accomplish highly accurate control on the combustion temperature of combustor 4, to prevent that the combustion temperature is raised excessively, and to minimize wear of combustor 4.