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1. 发明专利

JPH05332102A PRESSURE FLUIDIZED BED BOILER POWER PLANT 失效
公开(公告)号：JPH05332102A
公开(公告)日：1993-12-14
申请号：JP13948892
申请日：1992-05-29
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SATO KANZO , SUGITA NARIHISA , SUZUMURA TAKESHI , SASAKI TOSHIHIKO , MAO TAKASHI
IPC分类号： F01K13/02 , F01K23/06 , F01K23/10
摘要： PURPOSE:To protect a boiler and to safely stop it by way of restraining pressure difference between a pressure vessel and a furnace within an allowable range at the time of emergency at a pressure fluidized bed (PFBC) boiler power plant. CONSTITUTION:A combustion air adjustment system connected to a pressure vessel 5 and furnished with a combustion air amount adjustment valve 120 and a combustion gas by-pass adjustment system furnished with a combustion gas amount adjustment valve 130 to by-pass combustion gas of a furnace 6 are provided. At the time of emergency, combustion air is flowed to the combustion air adjustment system, and simultaneously, combustion gas in the furnace 6 is flowed to the combustion gas by-pass system. Consequently, at the time of emergency, it comes to be possible to maintain pressure difference between the pressure vessel 5 and the furnace 6 within an allowable range and simultaneously to restrain generation of overspeed of a gas turbine minimum.

2. 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.

3. 发明专利

JPS6185773A Composite fuel battery power generation facility 失效
标题翻译：复合燃料电池发电设备
公开(公告)号：JPS6185773A
公开(公告)日：1986-05-01
申请号：JP20706184
申请日：1984-10-04
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： NOGUCHI YOSHIKI , HATTORI YOICHI , SUGITA NARIHISA
IPC分类号： H01M8/00 , H01M8/06 , H01M8/14 , H01M8/24 , H01M16/00
CPC分类号： H01M8/0612 , H01M8/2495 , H01M16/00 , H01M2008/147 , H01M2300/0008 , H01M2300/0051 , Y02E60/526
摘要： PURPOSE:To improve heat efficiency of facility as a whole by using the exhaust gas of fused carbonate type fuel battery as the fuel of phosphoric acid type fuel battery. CONSTITUTION:The pressurized natural gas, etc. is used as a fuel 1 for a reformer 2. Meanwhile, vapor 39 is generated by a exhaust heat collecting boiler 35 and the vapor 41 having passed a superheater 40 is supplied to the reformer 2. In the reformer 2, the fuel 1 reacts with the vapor 41 for reforming within a reaction tube 3 and thereby a gas mainly consisting of methane is reformed into the gas mainly consisting of hydrogen and carbon monoxide. This reformed reaction gas 5 is then supplied to the anode 9 of the fused carbonate type fuel battery MFC8, the anode exhaust gas 12 of MFC8 is cooled by a heat exchanger 13 and is then sent to a shift converter 49. Thereby, hydrogen and carbon dioxide are generated from water and carbon monoxide. Such reaction gas is sent, as a fuel, to the phosphoric acid type fuel battery PFC51.
摘要翻译：目的：通过使用熔融碳酸盐型燃料电池的废气作为磷酸型燃料电池的燃料，提高设备整体的热效率。构成：将加压天然气等作为重整器2的燃料1使用。同时，由排气收集锅炉35产生蒸汽39，通过过热器40的蒸汽41被供给至重整器2.在重整器2，燃料1与反应管3内的重整用蒸汽41反应，由此主要由甲烷组成的气体被重整成主要由氢气和一氧化碳组成的气体。然后将该重整反应气体5供给到碳酸酯型燃料电池MFC8的阳极9中，将MFC8的阳极废气12由热交换器13冷却，然后送入移位转换器49.由此，氢和碳二氧化碳由水和一氧化碳产生。这种反应气体作为燃料被输送到磷酸型燃料电池PFC51。

4. 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。

5. 发明专利

JPH01248474A FUEL CELL POWER PLANT 失效
公开(公告)号：JPH01248474A
公开(公告)日：1989-10-04
申请号：JP7433388
申请日：1988-03-30
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NAGASAKI NOBUO , NOGUCHI YOSHIKI , YOKOSUKA KENJI , TAKAHASHI MASAHARU , HATTORI YOICHI , YANAI EIJI , SUGITA NARIHISA
IPC分类号： H01M8/04 , H01M8/06
摘要： PURPOSE:To obtain a high power generation efficiency with a simple system constitution even at a partial load by installing an inverter for driving auxiliary devices and controlling the rpm of a motor for driving a compressor. CONSTITUTION:Installing an inverter 90 for auxiliary devices, motors 57, 60 of circulation compressors 18, 34 of an anode 9 and a cathode 11 are controlled by the rpm. Namely, the amperage of the direct current is controlled by the auxiliary device inverter 90 and the voltage is controlled by the reformer reaction temperature, water vapor to carbon ratio, fuel cell operation pressure, or fuel utilization efficiency to supply a required current at a required voltage. Because the current conversion process is simplified from dc to ac in this way by controlling the frequency using the inverter 90 for the auxiliary devices, conversion loss is reduced. This makes it possible to simplify equipment constitution and to maintain a high power generation efficiency at a partial load.

6. 发明专利

JPS62208562A FUEL CELL POWER GENERATING PLANT 失效
公开(公告)号：JPS62208562A
公开(公告)日：1987-09-12
申请号：JP5047586
申请日：1986-03-10
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 enhance plant efficiency in partial load operation by supplying auxiliary fuel for a gas turbine through a fuel anode during partial load operation. CONSTITUTION:During partial load operation, auxiliary fuel 45 to be supplied to an auxiliary combustor 43 is supplied together with fuel required for a fuel cell to a fuel cell anode 9 through a reformer reaction part 5 as fuel 1. Since the excess amount of fuel exceeding the amount required for power generating is supplied to the anode 9, unreacted fuel is increased in the gas at and outlet of the anode 9. Although fuel concentration at an inlet of the anode 9 is the same, unreacted fuel at the outlet of the anode is increased in inverse proportion to the fuel concentration, and fuel concentration in the anode 9 is increased. Therefore, cell voltage is increased and power generating efficiency is enhanced.

7. 发明专利

JPS6237880A FUNDAMENTAL BASE OF FUEL CELL 失效
公开(公告)号：JPS6237880A
公开(公告)日：1987-02-18
申请号：JP17587985
申请日：1985-08-12
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KUDO FUMIHIKO , AOKI AKIHIDE , SUGITA NARIHISA , NAGASAKI NOBUO , HATTORI YOICHI
IPC分类号： H01M8/04 , H01M8/24
摘要： PURPOSE:To contrive to make the electric power plant compact by constructing the fundamental base in which several fuel cells can be installed as a block so as not to expose the common piping of the fuel gas and the exhaust gas to the outside environment. CONSTITUTION:The fundamental base 2 in which several fuel cells can be installed is constructed with three rooms of the connection piping room 4, the low temperature room 5, and the high temperature room 6 like a box. In the low temperature room 5 the common supply piping 7, 8 of the fuel gas for the anode and the cathode, in the high temperature room 6 the common exhaust gas piping 9, 10, and in the connection piping room 4 the all kinds of piping for connection of the cell 1 to the piping 7-10 are installed respectively. And on the inside of each room 4-6 the common thermal insulator device 11 is provided to prevent the deterioration of the efficiency due to the heat radiation. After fixing the cell 1 on the upper surface the construction of the base is completed by performing the piping. Therefore the power plant of the fuel cell can be made compact and also the work such as installation can be simplified.

8. 发明专利

JPS61128471A Starting method of fuel cell power generating plant 失效
标题翻译：燃料电池发电厂启动方法
公开(公告)号：JPS61128471A
公开(公告)日：1986-06-16
申请号：JP24961284
申请日：1984-11-28
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： NAGASAKI NOBUO , NOGUCHI YOSHIKI , SUGITA NARIHISA , HATTORI YOICHI
IPC分类号： H01M8/04 , H01M8/06 , H01M8/14
CPC分类号： H01M8/04223 , H01M8/04022 , H01M8/0643 , H01M2008/147 , H01M2300/0051 , Y02E60/526
摘要： PURPOSE:To drive a compressor with gasification furnace excess steam introduced into a steam turbine in plant starting by combining the shafts of an expansion turbine, a compressor and a steam turbine into one. CONSTITUTION:A fuel cell power generating plant is formed with a gasification furnace to which fine coal powder 1 and oxygen are supplied for gasification, and a molten carbonate fuel cell 20 in which carbonate such as lithium carbonate is used as an electrolyte. An expansion turbine 36, a compressor 37, a steam turbine 38 and a dynamo 40 are combined into the same shaft. When the plant is started, the gasification furnace 3 is operated and steam 8 obtained from heat recovery boilers 5, 7 is supplied to the steam turbine 38 to drive the compressor 37 and compressed air is supplied to the fuel cell 20. Since a starting device of the compressor is eliminated, starting loss can be decreased.
摘要翻译：目的：为了驱动压缩机，气化炉将多余的蒸汽引入到工厂的蒸汽轮机中，首先将膨胀涡轮机，压缩机和蒸汽轮机的轴组合成一体。构成：燃料电池发电厂形成有用于气化的煤粉1和氧气的气化炉，其中使用碳酸锂等碳酸盐作为电解质的熔融碳酸盐燃料电池20。膨胀涡轮机36，压缩机37，汽轮机38和发电机40组合在同一轴上。当工厂启动时，气化炉3被操作，并且从热回收锅炉5,7获得的蒸汽8被供应到蒸汽轮机38以驱动压缩机37，并且压缩空气被供应到燃料电池20.由于起动装置的压缩机被消除，起动损失可以减小。

9. 发明专利

JPH09125914A WASTE INCINERATION HEAT UTILIZATION SYSTEM 失效
公开(公告)号：JPH09125914A
公开(公告)日：1997-05-13
申请号：JP29015095
申请日：1995-11-08
申请人： HITACHI LTD , HITACHI ENG CO LTD , WAB HITACHI ENG SERVICE KK
发明人： OKUZAWA TSUTOMU , SUGITA NARIHISA , KOYAMA KAZUHITO , HATAMIYA SHIGEO , AJIRO YASUKO , YAMADA AKIRA , KAJI RYUICHI , TOKUNAGA KENJI , MATSUMURA JUBE , NISHIMOTO JUICHI
IPC分类号： F01D15/10 , F01K23/10 , F01K27/02
摘要： PROBLEM TO BE SOLVED: To enhance the total heat utilization rate of a waste incineration heat utilization system, say, a power generating system using heat produced by the incineration of waste, by reducing the amount of heat required for preventing exhaust gas coming from its waste incinerator from becoming white fume. SOLUTION: In a waste incineration heat utilization system, which has at least an incinerator 1 for incinerating wastes, a boiler 2 for producing steam by use of the heat of incineration of the incinerator, and an exhaust gas reheater 6 which, in order to prevent exhaust gas from the incinerator from becoming white fume, heats the exhaust gas while using a part of the steam as a heat source, a water eliminator 9 for eliminating water in the exhaust gas is placed on the upstream side of the exhaust gas reheater 6 to lower a white fume preventing temperature through the elimination of water in the exhaust gas so as to reduce the amount of heat (amount of steam) required for reheating of the exhaust gas. Preferably, a coolant in which heat is stored in ice by a refrigerator 12 by use of night power is circulated by the water eliminator 9 to eliminate the water through condensation.

10. 发明专利

JPH01248476A FUEL CELL POWER PLANT 失效
公开(公告)号：JPH01248476A
公开(公告)日：1989-10-04
申请号：JP7433488
申请日：1988-03-30
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NAGASAKI NOBUO , NOGUCHI YOSHIKI , YOKOSUKA KENJI , HATTORI YOICHI , YANAI EIJI , NANBA SHIGEAKI , SUGITA NARIHISA
IPC分类号： H01M8/04 , H01M8/06
摘要： PURPOSE:To improve thermal efficiency and obtain a simple plant control device by controlling fuel flow rate by selecting a high value of a fuel cell load signal or a reformer reaction temperature signal. CONSTITUTION:Controlling a fuel flow rate controlling valve 65 by selecting a high value of a load signal 62 of a fuel cell 8 or a reformer reaction temperature signal 54, the reaction temperature of the reformer 4 is controlled over the entire load range. As a result, the reformer reaction temperature can be controlled without supplying additional fuel, and the partial pressure corresponding to hydrogen in an anode 9 of the fuel cell can be enhanced by supplying surplus fuel to the fuel cell 8. This makes it possible to improve power generation efficiency and to simplify the control device.

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