专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明专利

JPS61284066A STARTING METHOD FOR FUEL CELL POWER GENERATING PLANT AND ITS EQUIPMENT 失效
公开(公告)号：JPS61284066A
公开(公告)日：1986-12-15
申请号：JP12434285
申请日：1985-06-10
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NAGASAKI NOBUO , HATTORI YOICHI , SUGITA NARIHISA , NOGUCHI YOSHIKI , KUDO FUMIHIKO
IPC分类号： H01M8/04 , H01M8/06 , H01M8/14
摘要： PURPOSE:To make a starting equipment compact, reduce facility cost, and decrease power loss by arranging a combustion chamber in which purified gas is burned, and supply combustion gas to a gas turbine. CONSTITUTION:Gas is purified in a gas purification unit C, and part of purified gas is passed through a bypass value to control its temperature and the other purified gas 17 is supplied to a combustion chamber 40 through a bypass control valve 19. Air for combustion is supplied to the combustion chamber 40 through an air bypass line 41 and an air bypass valve 57. The purified gas supplied to the combustion chamber 40 is burned to form a high temperature and high pressure gas and operates a gas turbine 43 and drives a compressor 46. Thereby, a starting procedure is simplified and storage tanks of heating gas for fuel cell are eliminated. The consumption of fuel for heating is reduced and facility cost for starting equipment is decreased and running cost of starting operation is also decreased.

12. 发明专利

JPS6069221A COMBINED POWER PLANT UTILIZING GASIFIED COAL 失效
公开(公告)号：JPS6069221A
公开(公告)日：1985-04-19
申请号：JP17711583
申请日：1983-09-27
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NAGASAKI NOBUO , NOGUCHI YOSHIKI
IPC分类号： F01K23/02 , C10J3/02 , C10J3/20 , F01K13/00 , F01K23/06 , F01K23/10 , F02C3/22 , F02C6/10
摘要： PURPOSE:To raise the thermal efficiency of a power plant, by heating air or oxygen gas serving as a gasifier by the gas produced by a gasifying furnace and dedusted by a precision dedusting means which is disposed at the outlet of a steam generating means at the outlet of the gasifying furnace. CONSTITUTION:A steam generating means 7 disposed at the outlet of a coal gasifying furnace 3 cools crude coal gas produced at the furnace 3 and carries steam generated at the steam generating means 7 to a waste-heat recovering boiler 20. The, the crude gas is carried to a precision dedusting means 63, in which dust contained in the crude gas is removed perfectly. A heat exchanger 64 is provided on the downstream side of the dedusting means 63 so as to preheat a gasifying agent such as air supplied to the coal gasifying furnace 3 by the dedusted crude coal gas. Further, a gasifying-agent passage 83 is provided to connect the heat exchanger 64 to a gas turbine 17 of a combined power plant 61 so that preheated gasifying agent is supplied to the coal gasifying furnace 3. With such an arrangement, it is enabled to raise the thermal efficiency of the power plant to a great extent, to lower the plant cost considerably and to improve operation of the power plant.

13. 发明专利

JPH0881687A ENTRAINED BED TYPE COAL GASIFIER 失效
公开(公告)号：JPH0881687A
公开(公告)日：1996-03-26
申请号：JP26168095
申请日：1995-10-09
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： YOKOSUKA KENJI , NOGUCHI YOSHIKI , NAGASAKI NOBUO , HATTORI YOICHI
IPC分类号： C10J3/46 , C10J3/54
摘要： PURPOSE: To maintain a high gasification efficiency corresponding to the fluctuation in load and keep the downflow stability of a slag. CONSTITUTION: This entralned bed type coal gasifier is obtained by keeping a higher oxygen concentration of a mixed gas of air 31 with an oxygen-enriched air 32 fed to the lower reactional bed 2 of the coal gasifier 1 than that in the air 31 fed to the lower reactional bed 3 and keep a higher temperature of the lower reactional bed 2 than the melting point of a slag even if the load fluctuates. The flow rate of the air fed to the upper part is regulated according to the load to keep a high gasification efficiency. The flow rate of the oxygen- enriched air fed to the lower reactional bed is regulated to control the temperature of the lower reactional bed above the set value.

14. 发明专利

JPH03115707A COMBINED POWER PLANT 失效
公开(公告)号：JPH03115707A
公开(公告)日：1991-05-16
申请号：JP25299389
申请日：1989-09-28
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： YANAI EIJI , HATTORI YOICHI , NAGASAKI NOBUO , NOGUCHI YOSHIKI , HOSHINO KAZUSADA
IPC分类号： F01K23/10
摘要： PURPOSE:To improve the power generation efficiency by diverting existing steam turbine power generation equipment and existing water circulating system for condenser, adding gas turbine equipment and exhaust heat recovering boilers, and by carrying out effective hat recovery in the exhaust heat recovering boilers. CONSTITUTION:In steam turbine equipment, a high pressure turbine 21, an intermediate pressure turbine 22, a low pressure turbine 23, a condenser 25 and a generator 26 are left as a remaining part, and a feed water heater and a steam turbine extraction system to it are removed. Two units of gas turbine power generation equipment and two exhaust heat recovering boilers are added, and exhaust gas 6 used at a gas turbine 3 is sent to an exhaust heat recovering boiler 10 so as to heat hot water 14 supplied from the steam turbine equipment to generate steam. Condensed water at the condenser 25 is used for the hot water 14 and sent through a condensate pump 27. The steam generated by the boiler 10 is diverted to main steam 15 at high temperature and high pressure and reheated steam 16 at high temperature and intermediate pressure, and the main steam 15 is supplied to the high pressure turbine 21 and the reheated steam 16 to the intermediate turbine 22 respectively.

15. 发明专利

JPH0350302A COMPOSITE POWER GENERATION PLANT 失效
公开(公告)号：JPH0350302A
公开(公告)日：1991-03-04
申请号：JP18262489
申请日：1989-07-17
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： HATTORI YOICHI , NAGASAKI NOBUO , YANAI EIJI , NOGUCHI YOSHIKI
IPC分类号： F01K23/10
摘要： PURPOSE:To improve the heat efficiency of a plant by constructing one cycle with plural exhaust heat recovery boilers, and installing a superheater which heats the steam supplied to a steam turbine at the uppest-stream part of the exhaust heat recovery boiler which the hottest exhaust heat enters. CONSTITUTION:For a composite power generation plant consisting of two gas turbines 1, 2 of different types, two exhaust heat recovery boilers 3, 4 of different bank structures corresponding to respective gas turbines 1, 2 and one steam turbine 5, one cycle is constructed with both the exhaust heat recovery boilers 3, 4. Namely, water supply is carried out for the respective exhaust heat recovery boilers 3, 4 by a feed water pump 14, and is heat-exchanged with exhaust gas by economizers 16 in respective boilers 3, 4 for high temperature water. After it joins the flow of the high temperature water which gets out of the respective economizers 16, it is fed to the evaporator 17 of the exhaust heat recovery boiler 4 and is heated for saturated steam. The saturated steam is fed to the superheater 18 of the exhaust heat recovery boiler 3, and the heated steam is fed to a steam turbine 5.

16. 发明专利

JPH01248477A CONTROL OF ANODE INLET GAS TEMPERATURE 失效
公开(公告)号：JPH01248477A
公开(公告)日：1989-10-04
申请号：JP7433588
申请日：1988-03-30
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SAITO NAOHARU , NAGASAKI NOBUO , NANBA SHIGEAKI
IPC分类号： H01M8/04 , H01M8/06 , H01M8/14
摘要： PURPOSE:To prevent loss of electrolyte due to abnormal temperature rise in a fuel cell by measuring reaction temperature of the cell and the gas temperature at an anode inlet, and injecting vapor or water into the anode inlet according to the measured temperature, thereby controlling the gas temperature entering the anode. CONSTITUTION:Installing temperature detectors 73, 74 at an inlet and inside of an anode 24 of a pipe introducing a gas from a gas heat exchanger 10 to the anode 24, gas temperature at the anode inlet and the reaction temperature of a fuel cell 22 are measured. Controlling the opening of a vapor injection valve 68 or a water injection valve 69 according to the gas temperature, vapor or water is injected to the gas introduced through the pipe from the gas heat exchanger 10 to the anode 24 to lower the temperature of the gas entering the anode 24. This enables to prevent the loss of electrolyte due to abnormal rise of the reaction temperature.

17. 发明专利

JPH01248475A FUEL CELL POWER PLANT 失效
公开(公告)号：JPH01248475A
公开(公告)日：1989-10-04
申请号：JP7433288
申请日：1988-03-30
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NAGASAKI NOBUO , NOGUCHI YOSHIKI , SAITO NAOHARU , YANAI EIJI , HATTORI YOICHI , YOKOSUKA KENJI , SUGITA NARIHISA
IPC分类号： H01M8/04 , H01M16/00
摘要： PURPOSE:To design reduction in the operation power and simplify a device by supplying a direct current generated with a fuel cell to a device using direct current as a power source. CONSTITUTION:Output terminals of a fuel cell power plant as a power source are connected to a device using direct current for example a salt water desalination device 90 to use directly the direct current as a power for the desilination device 90. Controlling the fuel flow rate to the fuel cell 8 so that the fuel cell voltage becomes a specified value, the cell is operated according to the specified operating condition of the device 90 requiring direct current. This makes an inverter unnecessary to make the system constitution simple and eliminates the loss in conversion from ac to dc.

18. 发明专利

JPS61114009A Coal supplying method and apparatus for coal gasification electric power plant 失效
标题翻译：煤炭燃气发电厂煤炭供应方法及装置
公开(公告)号：JPS61114009A
公开(公告)日：1986-05-31
申请号：JP23500384
申请日：1984-11-09
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： NAGASAKI NOBUO , NOGUCHI YOSHIKI
IPC分类号： F01K23/02 , C10J3/46 , F01K23/10 , F23K3/00 , F23K3/02
CPC分类号： Y02E20/18
摘要： PURPOSE: To prevent a back-fire from a gasification furnace, a coal dust exprosion at a coal supplying system and improve safety by a method wherein pulverized coal is supplied to a gasification furnace by utilizing of inactive gas produced and seperated from the system of a composite electric plant at coal gasification.
CONSTITUTION: Cabon deoxide remaining in purification gas 28 is contacted with absorbing liquid at a decarbonate tower 75 and is absorbed only in a amount necessary for the coal supply. The absorbing liquid absorbed the carbon deoxide is sent to a reclaim tower 77 and the absorbed carbon deoxide is seperated by reducing pressure and heating, thereafter, it is reclaimed and used in a circulation. The carbon deoxide is seperated from the reclaim tower 77 in this process. The inactive gas 80, having the carbon deoxide as principal component which is obtained by above mentioned process, is pressurized by a pressurizing compressor 81 to be supplied to a lock hopper 3. According to this method, the back-fire and or the coal dust exprosion are prevented and the safety may be improved.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了防止气化炉的反火，煤供应系统中的煤尘暴露，并且通过利用从系统中产生和分离的不活泼气体将气化炉供应给气化炉的方法来提高安全性煤气化复合电厂。构成：保留在净化气体28中的脱氧化钯与在碳酸氢盐塔75处的吸收液接触，并且仅以煤供应所需的量吸收。吸收碳酸氢盐的吸收液被送到回收塔77，通过减压和加热分离吸收的碳酸氢盐，然后回收再循环使用。在该过程中，碳酸氢盐与回收塔77分离。以上述方法获得的具有作为主要成分的碳氧化物的惰性气体80由加压压缩机81加压，供给到封闭料斗3.根据该方法，背火和/或煤尘防止了侵蚀，可以提高安全性。

19. 发明专利

JPS59229005A COAL GASIFICATION COMPOSITE POWER GENERATING PLANT 失效
公开(公告)号：JPS59229005A
公开(公告)日：1984-12-22
申请号：JP10265083
申请日：1983-06-10
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： ARAKAWA TADAO , NOGUCHI YOSHIKI , HISHINUMA TAKAO , NAGASAKI NOBUO
IPC分类号： F22B1/18 , C10J3/46 , F01K23/02 , F01K23/06 , F01K23/10
摘要： PURPOSE:To improve heat efficiency, by a method wherein a heat is recovered in a manner that the pressure of steam, from which a heat is recovered by a steam generator at the outlet of a gasifying furnace, is increased over the pressure of steam from which a heat is recovered by the gas cooler of the gasifying furnace. CONSTITUTION:A heat recovery system is combined with a system, which recovers exhaust gas 19 from a gas turbine by means of an exhaust heat recovery boiler 20 togetherwith steam, a gas cooler 54 of a drum type steam generator which recovers a radiation heat from a gasifying furnace 3, and a drum type steam generator 7 which recovers the latent heat of gas at the outlet of the gasifying furnace. The drum pressure of the steam generator 7 at the outlet of the gasifying furnace can be increased over the drum pressure of the gas cooler 54 of the gasifying furnace. This enables improvement of heat efficiency.

20. 发明专利

JPS5787815A METHOD AND DEVICE FOR DRY TAYPE WASTE GAS DESULFURIZATION 失效
公开(公告)号：JPS5787815A
公开(公告)日：1982-06-01
申请号：JP16460280
申请日：1980-11-25
申请人： HITACHI LTD , BABCOCK HITACHI KK , HITACHI ENG CO LTD
发明人： NAGASAKI NOBUO , MORI AKIRA , YOKOSUGA KENJI , KURODA HIROSHI
IPC分类号： B01D53/50 , B01D53/06 , B01D53/08 , B01D53/34 , B01D53/81 , C01B17/02 , C01B17/04
摘要： PURPOSE:To improve the removal efficincy of SOx and to make a titled device simple and small by including water or oxygen into waste gases prior to adsorption and removal of sulfur oxide thereby conditioning the waste gases. CONSTITUTION:After the waste gas of a boiler 1 is passed through a denitrating device 3, it is cooled in an air preheater 5. Cooling water through a piping 10 for supplying cooling water in contact with a piping 8 is included into the waste gas from the preheater 5. The waste gas included with the cooling water is captured and separated of dust in an electrical dust precipitator 7, after which it is adsorbed away of SOx in an adsorption tower 11, and is released as a purified gas through a piping 15. The adsorbent adsorbed with SOx is conducted through a piping 12 into a desorption tower 14, where it is heated and regenerated. This adsorbent is again returned into the tower 11 through a piping 13. The desorbed gaseous SO2 of a high concn. from a desorption tower 14 is fed through a piping 16 into a sulfur recovery device 17, by which it is recoveed as single substance sulfur 18. The tail gas after recovery of the single substance sulfur is reflowed to the precipitator 7 through a piping 23 so that the remaining SO2 is adsorbed and recovered. It is equally well to supply oxygen and steam for conditioning to the piping 9 in lieu of the cooling water through the piping 10.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式