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21. 发明专利

JPS5982531A DISCHARGED NITROGEN-OXIDE CONCENTRATION CONTROLLER FOR GAS TURBINE 失效
公开(公告)号：JPS5982531A
公开(公告)日：1984-05-12
申请号：JP19191582
申请日：1982-11-02
申请人： HITACHI LTD
发明人： TAKAHASHI KOUJI , NISHIJIMA YASUMASA
IPC分类号： F02C3/30
摘要： PURPOSE:To prevent a combustor etc. from being damaged and improve efficiency by suppressing each amount of injection of steam and water, with respect to the regulated concentration of NOx, in a discharged nitrogen-oxide concentration controller which jets-out steam or water onto the combustor of a gas turbine. CONSTITUTION:In a corrected nitrogen-oxide concentration calculator 16, the NOx concentration [NOx (corrected)] after correction with the actual atmospheric humidity is calculated. Each signal supplied from a generation electric power detector 20 and a fuel flow-rate detector 9 is input into a heat-rate calculator 15a in a regulated nitrogen-oxide concentration calculator 15, and the regulated concentration of [NOx(STA)] is calculated. The both signals are input into a nitrogen-oxide concentration comparison and calculation apparatus 17, and the signal of this deviation value is input into a steam injection amount controller 17, and the steam injection amount is controlled to the value corresponding to the output of said apparatus 17. Therefore, each injection amount of water and steam is suppressed to the minimum, and a combustor is prevented from being damaged by the combustion vibration.

22. 发明专利

JPS57177089A DEVICE FOR TREATING FUEL OIL 失效
公开(公告)号：JPS57177089A
公开(公告)日：1982-10-30
申请号：JP6135181
申请日：1981-04-24
申请人： HITACHI LTD
发明人： NISHIJIMA YASUMASA
IPC分类号： C10G31/08
摘要： PURPOSE:As the concentration of metals remaining in fuel oil is measured, after hydrophilic metal compounds are removed, the amount of water for washing the oil is controlled according to the deviation from the set value to remove metal compounds with very small amount of washing water efficiently. CONSTITUTION:After washing water is pouted to fuel oil and they are stirred with stirrer 5, they are separated by the separator 6 into oil layer and washing water layer containing hydrophilic metal compounds such as sodium salts. Then, the metal salt remaining in the fuel oil is measure and the value is compared with the prescribed one in the device 11 and the control valve 14 for pouring washing water in the pipe 3 is operated to make the fluctuation in the metal concentration difference zero. Thus, the amount of water for washing is minimized. EFFECT:The amount of water for washing fuel oil is sufficiently about 1%, about 3% at most and hydrophilic salts such as sodium or potassium salts are effectively removed.

23. 发明专利

JPS5781127A Gas turbine steam injection system 失效
标题翻译：气体涡轮喷射系统
公开(公告)号：JPS5781127A
公开(公告)日：1982-05-21
申请号：JP15767380
申请日：1980-11-11
申请人： Hitachi Ltd
发明人： NISHIJIMA YASUMASA
IPC分类号： F02C3/30
摘要： PURPOSE: To effectively reduce NO
x and to simplify the facility by providing a steam injection passage in a fuel nozzle for atomizing of the fuel and providing a steam injection nozzle in the combustion zone of a combustor for NO
x suppression.
CONSTITUTION: A fuel nozzle 20 is attached a combustor 5 covering the outside of a combstor outer cylinder head 5 and the head of the combustor 5, a fuel passage 21 and a steam injection passage 22 being provided inside of said combustor 5 and multiple number of steam injection nozzle piercing through an attaching flange 20' of the fuel nozzle 20 and opening toward the head of the combustor 5 are circumferentially provided around the head of the combustor. A steam supply line 25 having a flow control valve 27 and being connected to the external steam source is connected to the steam injection passage 22 while another steam supply line 26 having a flow control valve 28 and being connected to the external steam source is connected to the steam injection nozzles 23.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过在燃料喷嘴中设置蒸汽喷射通道，使燃料雾化，并在燃烧器的燃烧区域内提供一个蒸气喷射喷嘴，用于NOx抑制，从而有效地减少NOx和简化设备。构成：燃料喷嘴20安装在覆盖梳子外筒头5的外侧的燃烧器5和燃烧器5的头部，燃料通道21和设置在所述燃烧器5的内部的蒸汽喷射通道22和多个穿过燃料喷嘴20的连接凸缘20'并向燃烧器5的头部开口的蒸汽喷射喷嘴周向设置在燃烧器的头部周围。具有流量控制阀27并连接到外部蒸汽源的蒸汽供应管线25连接到蒸汽注入通道22，而具有流量控制阀28并连接到外部蒸汽源的另一个蒸汽供应管线26连接到蒸汽喷嘴23。

24. 发明专利

JPH0674892B2 失效
公开(公告)号：JPH0674892B2
公开(公告)日：1994-09-21
申请号：JP14315187
申请日：1987-06-10
申请人： HITACHI LTD
发明人： KURODA MICHIO , NISHIJIMA YASUMASA , KUNO KATSUKUNI , KIRIKAMI SEIICHI , IIZUKA NOBUYUKI , ISHIBASHI YOJI , OOMORI TAKASHI
IPC分类号： F23R3/34

25. 发明专利

JPS6429626A FUEL CONTROLLER FOR GAS TURBINE 失效
公开(公告)号：JPS6429626A
公开(公告)日：1989-01-31
申请号：JP18356987
申请日：1987-07-24
申请人： HITACHI LTD
发明人： NISHIJIMA YASUMASA , KIDA ARATA
IPC分类号： F02C9/40
摘要： PURPOSE:To prevent the variation of output for an arbitrary mixing ratio by controlling a flow rate adjusting valve on the basis of the calorific power, specific gravity of each fuel, and the mixing ratio of the both fuels, in the use of two kinds of fuels having different calorific power. CONSTITUTION:After two kinds of fuels A and B having different calorific power are mixed in a prescribed mixing ratio in a mixing valve 3, and the flow rate of the mixed fuel is supplied into a conbustor by the control by a flow rate adjusting valve 4. The mixing valve 3 performs feedback control so that the measured mixing ratio RM calculated from the fuel flow rate QAM and QBM measured by the flow rate meters 1 and 2 becomes a prescribed mixing ratio Rs. The flow rate adjusting valve 4 performs feedback control so that the measured flow rate QM becomes a set flow rate Qs. The set flow rate Qs is obtained through the calculation from the volume heat generation coefficients XA and XB of the fuels A and B which are calculated from the low rank calorific power and specific gravity of each fuel A, B, mixing ratio Rs. and the fuel energy signal Es.

26. 发明专利

JPS64394A DEVICE FOR PREVENTING SURGING IN COMPRESSOR 失效
公开(公告)号：JPS64394A
公开(公告)日：1989-01-05
申请号：JP15448487
申请日：1987-06-23
申请人： HITACHI LTD
发明人： KATO YASUHIRO , MATSUURA YUTARO , KASHIWABARA YASUNARI , NISHIJIMA YASUMASA , OTSUKA HARUHIKO
IPC分类号： F04D27/02
摘要： PURPOSE:To perform a surging prediction with high accuracy by providing an arithmetic processor for calculating a power changing ratio or a power equivalent amount changing ratio and also providing a controller for controlling the operational condition of a compressor. CONSTITUTION:An arithmetic processor 23 is provided for calculating a power changing ratio against a pressure ratio or suction flow rate at a revolutional number corrected by a constant, and a power equivalent amount changing ratio against a pressure ratio or suction flow rate at a revolutional number corrected by a constant with use of the outputs of respective detectors 17-22. A controller 25 for controlling the operational condition of a compressor 16 in such a way that at least one of the power changing ratio and the power equivalent amount changing ratio cannot exceed a limited value. Therefore, it is possible to perform the surging prediction with high accuracy.

27. 发明专利

JPS63183230A CONTROL METHOD FOR COMBUSTION TEMPERATURE OF GAS TURBINE 失效
公开(公告)号：JPS63183230A
公开(公告)日：1988-07-28
申请号：JP1429187
申请日：1987-01-26
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： INABA YOSHIAKI , NISHIJIMA YASUMASA , HASEGAWA TAKERU
IPC分类号： F02C9/28 , F02C9/00
摘要： PURPOSE:To maintain an optimum combustion temperature by calculating changes in exhaust gas temperature characteristics from the amount of heat generated with fuel, compensating the exhaust gas temperature characteristics, and controlling fuel flow rate so that the differential between the compensation value and the exhaust gas temperature measurement is reduced. CONSTITUTION:An air pressure signal PCD at a compressor outlet is inputted to a 1st function device 1 and a generated heat signal LHV is inputted to a 2nd function device. Output signals from the function devices 1, 2 are inputted to an operation device 6 and an output TX from the operation device 6, together with an output TXMAX from a signal generator 3, is inputted to a low value selector 7. A low value signal TXL selected with the low value selector 7 is compared with an output signal TXM of a medium value selector 4 in a comparator 8. The comparator 8 outputs the differential between the control value TXL of exhaust gas of a gas turbine and the medium value TXM to control the exhaust gas temperature of the gas turbine by outputting a gas turbine control signal VCE from a proportional integrator 9 so that the medium value TXM becomes equal to the control value TXL.

28. 发明专利

JPS61187539A GAS TURBINE EQUIPPED WITH SHAFT DRIVEN FUEL GAS COMPRESSOR 失效
公开(公告)号：JPS61187539A
公开(公告)日：1986-08-21
申请号：JP2627085
申请日：1985-02-15
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： HISAYOSHI SHUNICHI , NISHIJIMA YASUMASA
IPC分类号： F02C7/22 , F02C9/40
摘要： PURPOSE:To avoid the necessity of a driving means exclusively used for a combustion-gas compressor system equipment and cut cost by utilizing the gas-turbine driving power as the driving power for the system equipment, in a system equipped with a gas turbine and a fuel gas compressor. CONSTITUTION:The fuel supplied from a low-pressure fuel gas taking-in port 1 is compressed by a fuel gas compressor 5, and supplied into a combustor 30 through a separator 37, precooler 38, snapper 40, and a manifold 44. Under the supply of the discharge air from a compressor 28, said fuel gas is combusted in the combustor 30, and the high-temperature and high-pressure combustion gas generated is supplied into a gas turbine 29 to carry-out work, and said gas drives a power generator 31. In the above, the system equipment consisting of a fuel-gas compressor 5, lubricating-oil pump 9, cooling-water pump 10, etc. is driven by the driving power of the gas turbine through an auxiliary driving gear mechanism 32.

29. 发明专利

JPS6090929A GAS FUEL SYSTEM FOR STARTING GAS TURBINE 失效
公开(公告)号：JPS6090929A
公开(公告)日：1985-05-22
申请号：JP19904483
申请日：1983-10-26
申请人： HITACHI LTD
发明人： NISHIJIMA YASUMASA
IPC分类号： F02C9/28 , F02C7/26
摘要： PURPOSE:To enhance reliability of ignition and stability of combustion, by igniting fuel by use of gas fuel alone, and burning both of gas fuel and liquid fuel at the time of warm-up and the initial stage of acceleration when combustion of fuel is unstable. CONSTITUTION:When a gas turbine is started and the speed of rotation is raised to a required level, a shut-off valve 1 is fully opened and a pump 2 is set into operation in a fuel oil system. At the same time, a control valve 3 is also set into operation and an ignition plug 8 begins to emit spark for igniting fuel at any time when it is required. Further, when the speed of the gas trubine is raised to the ignition speed, a changeover valve 16 in a fuel gas supply system opens a shut-off valve to its full opening, and at the same time, an ON-OFF valve 12 is fully opened by an ignition signal. Thus, fuel gas is injected into a combustor 6 from a fuel nozzle 11 at the rate determined by the opening amount of a throttle 13 and the ON-OFF valve 12 and the differential pressure of the setting pressure of a pressure control valve 14 and pressure in the combustor 6.

30. 发明专利

JPS5915636A Gas turbine package ventilator 失效
标题翻译：燃气涡轮机包装通风机
公开(公告)号：JPS5915636A
公开(公告)日：1984-01-26
申请号：JP12215482
申请日：1982-07-15
申请人： Hitachi Ltd
发明人： TAKIHANA SEISAKU , NISHIJIMA YASUMASA
IPC分类号： F02C7/18 , F02C7/12 , F16M1/00
CPC分类号： F02C7/12
摘要： PURPOSE:To turn an engine accessories room to a non-dangerous area against explosion by installing bulkheads in a package of a fuel-gas combustion gas turbine to divide the package into an engine accessories room and the other compartments and by providing each ompartment with an independent ventilating means. CONSTITUTION:Bulkheads 12-14 are installed in a gas turbine package to divide it into an engine accessories room 1 accommodating engine accessories, a turbine room 3 accommodating a turbine main body, and a gas compartment 5 accommodating fuel gas devices. Each divided compartment is connected to a ventilation duct 19 and is provided independently with a regular ventilation fan 15 and an emergency fan 16. The pressure in the engine accessories room 1 is set higher than that in the gas compartment 5, so that fuel gas leaked from a gas control valve 7 is discharged into the atmosphere as indicated by arrow- mark GV in the illustration, without entering the engine accessories room 1.
摘要翻译：目的：将发动机配件室转到非危险区域，防止爆炸，将舱壁安装在燃料燃气燃气轮机的包装中，以将包装分成发动机附件室和其他舱室，并通过为每个舱室提供独立通风装置。构成：隔板12-14安装在燃气涡轮机组件中，以将其分成容纳发动机附件的发动机附件室1，容纳涡轮机主体的涡轮机室3和容纳燃气装置的气室5。每个分隔室连接到通风管道19，并且独立地设置有规则的通风扇15和紧急风扇16.发动机附件室1中的压力被设定为高于气体室5中的压力，使得燃料气体泄漏如图所示，气体调节阀7被排出到大气中，如图所示，不进入发动机附件室1。

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