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1. 发明专利

JPH02157426A STARTER DEVICE OF COMPLEX POWER PLANT WITH COAL GASIFICATION 失效
公开(公告)号：JPH02157426A
公开(公告)日：1990-06-18
申请号：JP30783388
申请日：1988-12-07
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NAGASAKI NOBUO , YANAI EIJI , HATTORI YOICHI , NOGUCHI YOSHIKI
IPC分类号： F02C3/28 , F02C7/26
摘要： PURPOSE:To reduce the start loss, decrease the capacity of a starter device, and simplify the equipment by supplying s gasifying furnace with a starting air with its pressure boosted by a boosting air compressor, which is furnished upstream with a starting air suction system. CONSTITUTION:A starting air suction system 43 is furnished on the suction side of a boosting air compressor 26, and air 15 is inhaled from the atmosphere. The starting air 30 boosted by this air compressor 26 is supplied to a gasifying furnace 1. This enables start of the plant concerned without installing a separate air compressor to be devoted for starting specifically. Because temp. rise of the gasifying furnace 1 can be made by the boosting air compressor 26, the starting loss due to decrease in the aux. fuel at the time of starting will be reduced.

2. 发明专利

JPS6466405A CONTROL METHOD AND CONTROLLER OF INTEGRATED ELECTRIC POWER PLANT 失效
公开(公告)号：JPS6466405A
公开(公告)日：1989-03-13
申请号：JP22186587
申请日：1987-09-07
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： HATTORI YOICHI , NOGUCHI YOSHIKI , YOKOSUKA KENJI , NAGASAKI NOBUO
IPC分类号： F01K23/10 , F02C9/20
摘要： PURPOSE:To enable high steam condition to be selected by adjusting the opening of the inlet guide vane of a gas turbine compressor inlet so that the temperature of generated steam does not exceed the upper limit of exhaust gas temperature set previously. CONSTITUTION:Load setting 21 is performed by load dispatching instruction and an actual load so as to become a fuel flow signal 24 by a difference between it and the actual rotation of a gas turbine. In addition, the upper limit of a gas turbine exhaust gas temperature signal 31 is set from compressor delivery pressure in compliance with definitive function, and a fuel flow signal 28 is obtained by the deviation between this and an actual turbine exhaust gas temperature signal 27, and a lower value selecting mean 29 selects a lower signal between the signals 24, 28 so as to control the opening of a fuel adjusting valve 5. In addition, a lower value selecting mean 34 selects a lower signal between an exhaust gas temperature upper limit signal 31 and an exhaust gas observed temperature signal 27 so as to control the opening of the inlet guide vane of a compressor inlet. With this arrangement, high steam condition can be selected without bringing decrease of plant heat efficiency.

3. 发明专利

JPS63239777A OPERATION METHOD FOR FUEL CELL POWER GENERATING PLANT 失效
公开(公告)号：JPS63239777A
公开(公告)日：1988-10-05
申请号：JP7152387
申请日：1987-03-27
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NAGASAKI NOBUO , NOGUCHI YOSHIKI , YOKOSUKA KENJI , HATTORI YOICHI , SUGITA NARIHISA
IPC分类号： H01M8/04 , H01M8/06
摘要： PURPOSE:To improve the power generation efficiency in a partial load operation by using a multispindle type expansion turbine, driving an air compressor and a generator with separate expansion turbines, and controlling the expansion turbine to drive the generator at a constant rotation frequency. CONSTITUTION:A multispindle expansion turbine is used, an air compressor 36 and a generator 38 are driven by separate turbines, the rotation frequency of the turbine 37 to drive the air compressor 36 is varied to make the flow of the air 27 variable, and the turbine 75 to drive the generator 38 is operated at a constant rotation frequency. Since the energy of the high temperature and high pressure fuel cell exhaust gas can be collected by the driving force as an electric output, and the feeding amount of the air 27 in a partial load operation can be reduced, the motive force for the air compressor can be reduced. Consequently, the power generation efficiency of the power generating plant in a partial load operation can be maintained at a high rate.

4. 发明专利

JPS62241990A GENERATION PLANT COAL GASIFICATION POWER 失效
公开(公告)号：JPS62241990A
公开(公告)日：1987-10-22
申请号：JP8412186
申请日：1986-04-14
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： HATTORI YOICHI , NOGUCHI YOSHIKI , YOKOSUKA KENJI , NAGASAKI NOBUO
IPC分类号： F02C6/00 , C10J3/00
摘要： PURPOSE:To decrease the power of a pressurizing compressor and to improve the overall efficiency of a plant, by decreasing the supply pressure of the air for gasification and coal gasification oven when the load is partially applied. CONSTITUTION:A load requesting signal 13 from the outside is input into a plant control device 14 and compared with an electrical output signal 15 transmitted from a heat generator 11, followed by computation. Corrected signals with respect to the actual pressure and actual temp. of a fuel are added, and a valve opening signal 17 is transmitted to a fuel flow rate control valve 16 to control the output of a gas turbine. The fuel gas pressure at the gas purification output is controlled so as to attain a pressure change pattern corresponding to the load predetermined in the device 14. A coal supply signal 21 is transmitted from the device 14 to a coal supply control device 20 by taking advantage of the deviation between the preset pressure of the fuel gas in the device 14 and a signal 19 from a fuel gas pressure page 18. The flow rate of air 3 supplied into a coal gasification oven 1 is controlled in an air to coal ratio control device 23. The pressurizing compressor 12 is operated at a constant number of revolutions independent of the load of the plant.

5. 发明专利

JPS6139459A Fuel cell power generating plant 失效
标题翻译：燃油电池发电厂
公开(公告)号：JPS6139459A
公开(公告)日：1986-02-25
申请号：JP16068084
申请日：1984-07-31
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： NOGUCHI YOSHIKI , ARAKAWA TADAO , NAGASAKI NOBUO , SUGITA NARIHISA , TAKEUCHI MASAHITO
IPC分类号： H01M8/04 , F01K3/18 , F01K23/06 , H01M8/06
CPC分类号： H01M8/0612 , F01K3/188 , F01K23/06
摘要： PURPOSE: To make turbine inlet temperature go up as well as to improve thermal efficiency in the whole lot of a plant, by installing a combustor in a pipe line leading cathode exhaust gas into a turbine, while leading a part of anode exhaust gas into this combustor, and making it into combustion together with the cathode exhaust gas.
CONSTITUTION: The cathode exhaust gas branched off from cathode circulating gas 78 in cathode exhaust gas 76 is fed to a combustor 170 installed in a pipe line leading the cathode exhaust gas 76 into an expansion turbine 84 as combustion air 168. In addition a part of combustion gas 64 to be fed to a combustion part 62 of a modifier 24 is fed to this combustor 170 as combustion gas 172. The combustor 170 uses the combustion gas 172 for fuel and burns a part of the cathode exhaust gas 76 as the combustion air 168, feeding the expansion turbine 84 with combustion exhaust gas as turbine inlet ags 174. With this constitution, thermal efficiency in the expansion turbine 84 is raised and, what is more, the efficiency of an exhaust heat recovery system 92 is raisable.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了使涡轮机入口温度升高，并提高整个工厂的热效率，通过将管道中的燃烧器安装在将阴极废气引入涡轮机的同时，将阳极废气的一部分引入到燃烧器，并与阴极废气一起燃烧。构成：从阴极废气76中的阴极循环气体78分出的阴极废气被供给到安装在管线中的燃烧器170，该管线将阴极排气76引导到作为燃烧空气168的膨胀涡轮84中。另外，供给到改性剂24的燃烧部62的燃烧气体64作为燃烧气体172供给到该燃烧器170.燃烧器170使用燃烧气体172作为燃料，并将一部分阴极排气76燃烧为燃烧空气 168，将膨胀涡轮机84供给燃烧废气作为涡轮机入口组件174.通过这种结构，膨胀涡轮机84的热效率提高，而且排气热回收系统92的效率提高。

6. 发明专利

JPH02123202A BYPASS SYSTEM FOR STARTING COMBINED PLANT AND METHOD OF OPERATING SAME 失效
公开(公告)号：JPH02123202A
公开(公告)日：1990-05-10
申请号：JP27336088
申请日：1988-10-31
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SUGITA NARIHISA , NOGUCHI YOSHIKI , HOSHINO KAZUSADA , HOIZUMI SHINICHI , NAGASAKI NOBUO
IPC分类号： F01K23/10
摘要： PURPOSE:To suppress amount of dissolved oxygen from time for starting with low load to time with full load at an allowable value or lower while minimizing deterioration in plant efficiency by providing a bypass tube path for connecting from a condenser to a deaerator and a feed water heater. CONSTITUTION:A deaerator 2 is provided at a final. portion of an exhaust gas outlet port of an exhaust heat recovery boiler 1, and a tube 13 for supplying feed water supplied from a condenser 33 to the deaerator 2 and an outlet tube 18 from the deaerator 2 to an economizer 3 are provided. The tube 13 and the outlet tube 18 are connected by a deaerator bypass 15 with a control valve 16 provided in the midway. If load in a combined plant increases to have deairing performance in the condenser 33 improved, this controls a control valve 16 to permit feed water from the condenser 33 to directly flow into the economizer 4 by the deaerator bypass 15. Since gas temperature at an outlet of the exhaust heat recovery boiler 1 can be therefore lowered to limitation of the deaerator 2, deterioration of plant efficiency can be minimized while amount of dissolved oxygen can be suppressed to an allowable value or lower by the deaerator 2.

7. 发明专利

JPH01178727A COAL GASIFICATION COMPOUND POWER PLANT 失效
公开(公告)号：JPH01178727A
公开(公告)日：1989-07-14
申请号：JP123088
申请日：1988-01-08
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： YANAI EIJI , NOGUCHI YOSHIKI , HASHIMOTO TSUGIO , NAGASAKI NOBUO , HATTORI YOICHI
IPC分类号： F02C3/28 , F02C7/057 , F02C9/18
摘要： PURPOSE:To aim at an efficiency improvement by holding extraction pressure ranging from a gas turbine compressor to a gasified furnace air feeding booster compressor so high. CONSTITUTION:A part of air subjected to pressure up at a gas turbine compressor 9 is extracted out of an outlet of this gas turbine compressor 9 and, after pressure is intensified up to the required one at a gasified furnace air feeding booster compressor 17, it is fed to a gasified furnace 1. An inlet guide vane of the gas turbine compressor 9 is controlled and thereby extraction pressure is held so high. With this constitution, shaft power of the booster compressor is abated, so that efficiency is improvable.

8. 发明专利

JPH01112671A OPERATING METHOD FOR FUEL CELL POWER PLANT 失效
公开(公告)号：JPH01112671A
公开(公告)日：1989-05-01
申请号：JP26829887
申请日：1987-10-26
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NAGASAKI NOBUO , NOGUCHI YOSHIKI , HATTORI YOICHI , YOKOSUKA KENJI , SUGITA NARIHISA
IPC分类号： H01M8/04 , H01M8/06
摘要： PURPOSE:To set the load fluctuation range to about 4-100% which is larger than before by controlling the fuel pressure in response to the change of the electric output. CONSTITUTION:The heat quantity fed to an expansion turbine 37 is controlled in response to the fuel pressure, the discharge air pressure of a compressor 36 is controlled, thereby the fuel pressure can be changed while the pressure difference between the anode 9 and the cathode 11 of a fuel cell 8 is suppressed within the allowable value. The power for the pressure rise is decreased by the amount that the air feed pressure is reduced, and the efficiency of the partial load is increased. When the discharge air pressure of the compressor is changed, the operation range of an expansion turbine 37 and the compressor 36 is increased, and the operation property at the partial load is improved. When fuel is fed to an auxiliary combustion device 69 at the inlet of an exhaust heat recovery heat exchanger or the inlet of the expansion turbine 37 independently of the operation restriction of the electric output, the electric/heat output ratio can be optionally selected, thus both the electric power demand and the heat demand can be coped with.

9. 发明专利

JPS62274563A COMPOSITE POWER GENERATING PLANT 失效
公开(公告)号：JPS62274563A
公开(公告)日：1987-11-28
申请号：JP11752086
申请日：1986-05-23
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NOGUCHI YOSHIKI , NAGASAKI NOBUO , HATTORI YOICHI , YOKOSUKA KENJI , SUGITA NARIHISA
IPC分类号： F02C6/18 , H01M8/00 , H01M8/04 , H01M8/06 , H01M8/14
摘要： PURPOSE:To increase the efficiency of a plant by conducting a fuel gas into an anode of fuel cell through a reforming line, converting an exhaust gas exhausted from the anode into a high temperature conbustion gas with a combustor, then driving a gas turbine. CONSTITUTION:Fuel 1 is introduced into a reformer 12 to form a fuel gas 2 by steam reforming reaction. The fuel gas 2 supplied to an anode 14 of fuel cell electrochemically reacts with the air and carbon dioxide in a cathode 15 to generated d.c. current. An anode outlet gas 3 which still keeps more calorific value than that required for gas turbine combustion is supplied to a gas turbine combustor 32 as fuel gas 4. In a gas turbine 29, the air 23 of the atmosphere is compressed by a compressor 30, and the fuel gas 4 is burned in the combustor 32, then heat energy is converted into mechanical energy in a turbine 31 and electric power is generated by a dynamo 33.

10. 发明专利

JPS6280968A FUEL CELL POWER GENERATING PLANT 失效
公开(公告)号：JPS6280968A
公开(公告)日：1987-04-14
申请号：JP21905185
申请日：1985-10-03
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NAGASAKI NOBUO , NOGUCHI YOSHIKI , KUDO FUMIHIKO , HATTORI YOICHI , SUGITA NARIHISA
IPC分类号： H01M8/04
摘要： PURPOSE:To increase temperature and pressure easily and quickly at starting of operation by installing a combustion chamber near a gas inlet of turbine, and forming passages for supplying a part of fuel and a part of exhaust gas from a cathode to the combustion chamber. CONSTITUTION:A combustion chamber is installed in a gas inlet of a gas turbine, and passages for supplying a part of fuel cell fuel and a part of exhaust gas from a cathode of fuel cell are formed. A fuel cell power generating plant is started in such a way that a part of fuel gas is introduced into a combustion chamber 29 of the inlet of a gas turbine 34 to operate the gas turbine, then a compressor 8 is drived by the gas turbine, and compressed air and fuel are supplied to a cathode 7 and an anode 6 respectively to increase pressure, then a part of fuel is supplied to a catalyst burner 18 and residual fuel is bypassed to supply to the combustion chamber to gradually increase temperature of a mixture gas for supplying to the cathode, and the temperature of fuel cell is increased. Thereby, installation cost, preliminary fuel, and starting loss can be decreased.

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