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1. 发明专利

JP2005106351A Gas turbine combustor 有权
标题翻译：气体涡轮搅拌机
公开(公告)号：JP2005106351A
公开(公告)日：2005-04-21
申请号：JP2003339045
申请日：2003-09-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SASAO TOSHIBUMI , TAKEHARA ISAO , WATANABE YASUYUKI , YAMANOBE TAKUMI , AKATSU FUMIHIKO , ITO KAZUYUKI
IPC分类号： F23R3/08 , F02C7/18
摘要： PROBLEM TO BE SOLVED: To reduce an air flow rate slipping through from a fitting and connecting part of a combustion chamber liner and a transition piece, to approximately uniformize distribution in a circumferential direction of a cooling air flow rate on the combustion chamber liner, thus to increase a fuel air flow rate, leading to reduction in NOx discharge amount, and to suppress increase in metal temperature at a terminal of the combustion chamber liner.
SOLUTION: The combustion chamber liner 2 is connected with the transition piece 3 in a fitting structure, and an air flow passage is formed outside the combustion chamber liner 2 and the transition piece 3. At the fitting and connecting position, flow passage width in a radial direction of the air flow passage is set small in the transition piece 3 side, and is set large in the combustion chamber liner 2 side, creating a step 300. A partition wall (ring) 100 serving as resistance to an air flow is provided on an outer wall of the combustion chamber liner 2 in the vicinity of a terminal of the transition piece 3 at the fitting and connecting position.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题为了减少从燃烧室衬套和过渡件的装配和连接部分滑过的空气流量，大致均匀化在燃烧室上的冷却空气流量的圆周方向上的分布从而增加燃料空气流量，导致NOx排出量的降低，并且抑制燃烧室衬套的端子处的金属温度升高。解决方案：燃烧室衬套2与过渡件3以配合结构连接，并且在燃烧室衬套2和过渡件3之外形成空气流动通道。在配合和连接位置，流动通道空气流路的径向的宽度在过渡件3侧被设定得较小，并且在燃烧室衬垫2侧被设定得较大，形成了台阶300.用作空气阻力的隔壁（环）100 在装配和连接位置处在过渡件3的端子附近在燃烧室衬套2的外壁上设置有流动。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JPH08240485A EXHAUST GAS TEMPERATURE MEASURING DEVICE OF GAS TURBINE 失效
公开(公告)号：JPH08240485A
公开(公告)日：1996-09-17
申请号：JP4548595
申请日：1995-03-06
申请人： HITACHI LTD
发明人： NAKAMURA TOKUJI , YAMANOBE TAKUMI , SHIMURA AKIRA
IPC分类号： G01K1/08 , F02C7/00 , G01K7/02 , G01K13/02
摘要： PURPOSE: To provide an exhaust gas temperature measuring device of gas turbine on which response speed in measuring temperature is not reduced and in which the degradation and abrasion by a collision or the like of impurity particles and foreign matters and a failure such as breaking are not caused. CONSTITUTION: In the exhaust gas temperature measuring device of gas turbine which has a thermocouple 1 arranged in the direction perpendicular to the jet direction of gas turbine exhaust gas and in which this thermocouple has a heat resistant protective cylinder 2 on the surface, the heat resistant protective cylinder 2 is formed so as to cover up to a temperature measuring tip part of the thermocouple 1. An exhaust gas penetrating window 4 which opens in the jet direction of the gas turbine exhaust gas and has a diameter smaller than an exhaust gas impurity particle, is arranged in a temperature measuring side tip part of this heat resistant protective cylinder 2.

3. 发明专利

JPS63311006A SHAFT SEALING WATER DEVICE FOR BOILER FEED PUMP 失效
公开(公告)号：JPS63311006A
公开(公告)日：1988-12-19
申请号：JP14311787
申请日：1987-06-10
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NAKAMURA YASUAKI , TAMURA YUHEI , YAMANOBE TAKUMI
IPC分类号： F22D11/00

4. 发明专利

JP2002138856A FUEL CONTROL DEVICE FOR GAS TURBINE 失效
公开(公告)号：JP2002138856A
公开(公告)日：2002-05-17
申请号：JP2000333459
申请日：2000-10-31
申请人： HITACHI LTD
发明人： MORIWAKI BUNJI , SASADA TETSUO , YAMANOBE TAKUMI , TAKEHARA ISAO , KIMURA YOTARO , ITO KAZUYUKI , NAGABUCHI NAOYUKI
IPC分类号： F02C9/28 , F02C9/34 , F02C9/52 , F02C9/54
摘要： PROBLEM TO BE SOLVED: To provide a fuel control device for a gas turbine, improving the operability of the gas turbine. SOLUTION: When load rejection or shut-off from a feeding system occurs, the fuel control device 20 sets a predetermined fuel flow rate in a premixed combustion fuel system F2-1 to be a predetermined first minimum fuel flow rate b03 for a first effective time T01 and sets a fuel flow rate in a diffusion combustion fuel system F1 to be a predetermined second minimum fuel flow rate c03 for a second effective time T02.

5. 发明专利

JPH08158893A CONTROL METHOD OF GAS TURBINE 失效
公开(公告)号：JPH08158893A
公开(公告)日：1996-06-18
申请号：JP30059794
申请日：1994-12-05
申请人： HITACHI LTD
发明人： ENDO TOMOYOSHI , HIROSE FUMIYUKI , SHIMURA AKIRA , YAMANOBE TAKUMI , SATO ISAO , IKEDA HIROSHI
IPC分类号： F02C9/00 , F23N5/00 , F23R3/30 , F23R3/34 , F23R3/46
摘要： PURPOSE: To continue driving without stopping a gas turbine by speedily detecting abnormality of combustion and transferring to individual combustion of only a first stage combustion part even in the case when abnormal combustion is taken place in a second stage combustion part of a large number of combustors simultaneously. CONSTITUTION: Change of each combustor metal temperature 1 is monitored, and a rate of change 3 as time passes is taken out by a rate of change enumerator 2. In the case when the rate of change 3 still exceeds an allowable value even when time set by a timer 5 passes, a monitor relay 4 regards the combustor is abnormal and transmits a signal 6. The number of the combustors regarded as combustion abnormality is found out by an adder 7 in accordance with this signal 6, in the case when it exceeds the majority of the total number of the combustors, a monitor relay 8 regards it as multiple combustor simultaneous combustion unstability and transmits a signal 9. By transmission of this signal 9, a transferring command to individual driving of the first stage combustion part is transmitted. Consequently, it is possible to continue driving while maintaining a stable combustion state without stopping a gas turbine.

6. 发明专利

JPH03122401A WATER SUPPLYING SYSTEM CLEAN-UP DEVICE AND CLEAN-UP METHOD 失效
公开(公告)号：JPH03122401A
公开(公告)日：1991-05-24
申请号：JP25523289
申请日：1989-10-02
申请人： HITACHI LTD , TOKYO ELECTRIC POWER CO
发明人： MISHIMA NOBUYOSHI , YOKOSUKA KENJI , HORIKAWA YORIAKI , YAMANOBE TAKUMI , SUZUKI TATSUO
IPC分类号： F22B37/00 , F22B37/54 , F22D11/00
摘要： PURPOSE:To shorten a clean-up time by a method wherein a carbon steel pipe in a clean-up device in a power generating plant is heated by hot water, the hot water is blown, oxygen contained in the surrounding atmosphere is contacted with the carbon steel pipe to form an oxidized iron film and then it is cleaned up. CONSTITUTION:A hot water supplying operation is carried out from a deaerator 19 to high pressure supplied water heating devices 25 to 27 during a high pressure cleaning-up operation and the hot water is circulated through a stop valve 30 and a circulation valve 33. During this operation, the hot water is heated by deaeration auxiliary steam fed through an auxiliary steam stop valve 35 within the deaerator 19. Then, former and later valves 24, 28 and 30 are closed to cause the hot water to be discharged through a high pressure supplied water heater water chamber drain blow valve 51, and in place of it the surrounding atmosphere is fed through a vent valve 50. With such an arrangement, iron oxide protection film is formed at an inner surface of a steel pipe. With such an arrangement, a fast clean-up operation can be accomplished.

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