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1. 发明专利

JPH11237036A SLURRY SUPPLY NOZZLE AND SUPPLY METHOD OF PRESSURIZED FLUIDIZED BED BOILER 失效
公开(公告)号：JPH11237036A
公开(公告)日：1999-08-31
申请号：JP4086998
申请日：1998-02-23
申请人： CHUGOKU ELECTRIC POWER , BABCOCK HITACHI KK
发明人： KIDA KAZUYA , NISHIMURA SADAO , YOSHIOKA SUSUMU , KATSUTA YASUTSUNE , TAKEZAKI HIROSHI , OTANI YOSHINORI , KAWASAKI TERUFUMI , NONAKA KIMIHIRO
IPC分类号： F23D1/00 , F23K3/00
摘要： PROBLEM TO BE SOLVED: To provide a slurry supply nozzle that can suppress combustion at an upper portion of a layer by relaxing oxygen shortage near the nozzle in a flow layer and can prevent the wear of a nozzle tip part. SOLUTION: A nozzle for supplying CWP with dispersed air is constituted of a slurry conduit 31, a cooling water conduit 33, a cooling water return pipe 35, and an air conduit 37 that are arranged concentrically around it, a pipe edge member 39 in a conical trapezoid shape that is mounted to the tip of the slurry conduit 31 and the cooling water return pipe 35 and has an opening being connected to the inner diameter of slurry conduit 31 that is mounted to the tip of the slurry conduit 31 and the cooling water return pipe 35, and a nozzle tip 40 that is mounted to the tip of the air conduit 37 and has a recess in a conical trapezoid shape at a rear and an emission hole 42 at an axial center part. Also, a slit 41 of an annular section being formed between a nozzle chip 4 and the pipe edge member 39 is connected to an air channel 36, a conical angle is set to 75-105 deg., the convergence point of the slit 41 is located at the front end of or in front of the nozzle tip 40, and the diameter of the emission hole of the nozzle chip 40 is set to the same inner diameter of a slurry conduit exit.

2. 发明专利

JP2008180499A Pressurized fluidized bed boiler 有权
标题翻译：加压流化床锅炉
公开(公告)号：JP2008180499A
公开(公告)日：2008-08-07
申请号：JP2008056723
申请日：2008-03-06
申请人： Chugoku Electric Power Co Inc:The , 中国電力株式会社
发明人： YOSHIZAKO HIDEHISA , SAKATA TARO , YAMASHITA YUKA , IWASE TETSUYA , KAWASAKI TERUFUMI , ISHIDA TAKAYUKI , MAKINO HIDENORI
IPC分类号： F23C10/16 , F23C10/18
摘要： PROBLEM TO BE SOLVED: To simplify a cooling structure for a nozzle, which injects ammonia to a combustion gas outlet flow passage of a furnace outlet, for reducing weight of the nozzle, improving ease of maintenance, and increasing airtightness of a cooling water flow passage. SOLUTION: The combustion gas outlet flow passage 106 is arranged in the furnace outlet through a pressure vessel 1 including a fluidized bed furnace 2 of the pressurized fluidized bed boiler. The ammonia injection nozzle 147 is installed in the direction crossing the outlet flow passage 106. A cooling water dividing plate 25 dividing the flow passage into a cooling water inflow passage and a cooling water outflow passage is installed in the pipe axis direction inside an ammonia injection nozzle outer pipe 22 of the nozzle 147, and an ammonia pipe 21 is installed inside the cooling water dividing plate 25. Through the cooling water dividing plate 25 from the ammonia pipe 21, a plurality of ammonia spray opening parts 25a injecting ammonia toward exhaust gas inside the combustion gas outlet flow passage 106 are provided. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了简化喷嘴的冷却结构，其将氨喷射到炉出口的燃烧气体出口流动通道，用于减少喷嘴的重量，改善维护的便利性和提高冷却的气密性水流通道。解决方案：燃烧气体出口流动通道106通过包括加压流化床锅炉的流化床炉2的压力容器1布置在炉出口中。氨喷嘴147沿着与出口流路106相交的方向安装。在氨注入中的管轴方向上安装有将流路分割成冷却水流入通路和冷却水流出通道的冷却水分隔板25 喷嘴147的喷嘴外管22和氨管21安装在冷却水分隔板25的内部。通过来自氨管21的冷却水分隔板25，将氨喷射到废气设置在燃烧气体出口流路106的内部。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2003185106A FUEL DISTRIBUTION APPARATUS FOR FLUIDIZED BED BOILER 审中-公开
公开(公告)号：JP2003185106A
公开(公告)日：2003-07-03
申请号：JP2001384206
申请日：2001-12-18
申请人： BABCOCK HITACHI KK
发明人： FUJIWARA HIDENARI , KAWASAKI TERUFUMI , MIYAMOTO TOMOHIKO , KAWABE RYUHEI , ITO OSAMU , TOMURO JINICHI , IWASE TETSUYA
IPC分类号： F23C10/22
摘要： PROBLEM TO BE SOLVED: To restrain distribution performance of fuel from being degraded in a fuel distribution apparatus and reduce flowing medium deposited on the fuel distribution apparatus. SOLUTION: This fuel distribution apparatus 1 includes a collision section 5 consisting of a surface with which the fuel 25 rising from downward collides, and a dispersion section 7 consisting of a surface which is formed around the collision section 5 and dispersively flows fuel 25 colliding with the collision section 5. The fuel 25 flows toward the peripheral edge of the distribution section 7 along a surface formed with the dispersion section 7. The surface formed with the dispersion section 7 includes a through hole 9 penetrated upward. COPYRIGHT: (C)2003,JPO

4. 发明专利

JP2002104808A METHOD OF REFORMING FUEL 失效
公开(公告)号：JP2002104808A
公开(公告)日：2002-04-10
申请号：JP2000299102
申请日：2000-09-27
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： KANEKO TOMOKO , YOSHIDA NORIKO , YAMASHITA HISAO , KAWASAKI TERUFUMI
IPC分类号： C01B3/40 , B01J23/10 , B01J32/00 , C01B3/48 , H01M8/06 , H01M8/10
摘要： PROBLEM TO BE SOLVED: To provide a method of reforming a fuel by which a gas containing gaseous hydrogen mainly is produced from gaseous oxygen or air, a hydrocarbon and a steam. SOLUTION: Hydrogen is manufactured without external heating in the fuel-reforming method by making a raw material gas which contains oxygen or air, a hydrocarbon and a steam come in contact with a catalyst which simultaneously promotes an oxidation reaction of the hydrocarbon and a steam- reforming reaction of the hydrocarbon. A porous carrier of the catalyst consists of a metal oxide which contains at least Al and is loaded with precious metals such as Pd, Pt, Ru, and Rh, or the above metals and one or more metals selected from Ni, Co, Fe, Ag, Cu, Zn, Cr and rare earth elements. Exotherm of the oxidation reaction is balanced with endotherm of the steam-reforming reaction by controlling the supported quantity of the active component which promotes the oxidation reaction of the hydrocarbon and the active component which promotes the steam-reforming reaction of the hydrocarbon, as a result the whole catalyst is maintained at a prescribed temperature.

5. 发明专利

JP2000257808A PRESSURE VESSEL, PRESSURIZED FLUIDIZED BED BOILER AND AMMONIA INJECTION DEVICE 失效
公开(公告)号：JP2000257808A
公开(公告)日：2000-09-22
申请号：JP6545199
申请日：1999-03-11
申请人： BABCOCK HITACHI KK
发明人： YOSHIZAKO HIDEHISA , SAKATA TARO , YAMASHITA YUKA , IWASE TETSUYA , KAWASAKI TERUFUMI , ISHIDA TAKAYUKI , MAKINO HIDENORI
IPC分类号： F23C10/16
摘要： PROBLEM TO BE SOLVED: To cool a space between a furnace wall and a pressure vessel effectively, prevent the local abrasion of the wall penetrating part and the bent part of a heat transfer pipe in a layer without constituting the furnace wall of a pressurized fluidized bed furnace structure in a tapered structure, facilitate the construction of a furnace and the support structure, and simplify a structure for cooling an ammonia injection nozzle. SOLUTION: A cooling gas flow passage is provided with at least one set of cooling gas injection nozzle 3, opened in a cooling gas passage provided between a furnace 2 and a pressure vessel 1 while the center axis of injection of cooling gas through the cooling gas injection nozzle 3 is arranged so as to be deviated from the center of gravity of the furnace 2 in order that the cooling gas, injected into the inside of the pressure vessel 1, will not be collided directly against the furnace 2.

6. 发明专利

JP2002104809A APPARATUS OF REFORMING FUEL 失效
公开(公告)号：JP2002104809A
公开(公告)日：2002-04-10
申请号：JP2000299103
申请日：2000-09-27
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： KANEKO TOMOKO , YOSHIDA NORIKO , YAMASHITA HISAO , KAWASAKI TERUFUMI
IPC分类号： C01B3/40 , B01J23/10 , B01J32/00 , H01M8/06
摘要： PROBLEM TO BE SOLVED: To provide a fuel reformer including a fuel cell in which an apparatus and a control system are simplified, while maintaining the reforming performance. SOLUTION: The fuel-reforming apparatus is provided with a combustion catalyst 3 and the following catalyst 4 of reforming in a gas stream. The carrier of the catalyst 3 consists of one or both components selected from a rare earth element/β-alumina and the rare earth element/β-alumina precursor and supports a precious metal. The catalyst 3 whose combustion temperature is higher than that of the conventional catalyst supplies a hot gas to the reforming catalyst 4 whose heat content drives the reforming reaction.

7. 发明专利

JP2000266314A FLUIDIZED-BED BOILER 失效
公开(公告)号：JP2000266314A
公开(公告)日：2000-09-29
申请号：JP6914699
申请日：1999-03-15
申请人： BABCOCK HITACHI KK
发明人： SUGITA RYUICHI , KATSUTA YASUTSUNE , KAWASAKI TERUFUMI , IZUTA KOZO , TOKAWA KENJI , FUJIWARA HIDENARI
IPC分类号： F23C10/22 , F22B1/02
摘要： PROBLEM TO BE SOLVED: To uniformly distribute injected fuel in a fluidized bed by providing fins extended in a horizontal direction at a position which is brought into contact with a fuel accompanied with flowing air and injected from a fuel supply nozzle of a heat transfer tube of the lowermost stage of a heat transfer tube group. SOLUTION: Fins 3 extended in a horizontal direction are provided at a position, where a fuel injected from a fuel supply nozzle 1 of a heat transfer tube 2 of the lowermost stage of the fluidized-bed boiler is collided, and sawtooth-like cutouts are provided at the fins 3. The fuel injected from the nozzle 1 is collided with the fins 3 provided at the tube 2 of the lowermost stage, and distributed substantially uniformly in a skin along an extending direction of the fins 3. Thus, combustion efficiency is improved, unburned combustion on a free board or a cyclone can be avoided, and a circulating atmosphere near the tube of the lowermost stage is suppressed, thereby preventing a corrosion of the tube.

8. 发明专利

JP2000266313A FLUIDIZED BED BOILER AND FUEL DISTRIBUTOR THEREOF 失效
公开(公告)号：JP2000266313A
公开(公告)日：2000-09-29
申请号：JP6651599
申请日：1999-03-12
申请人： BABCOCK HITACHI KK
发明人： KAWASAKI TERUFUMI , FUJIWARA HIDENARI , SUGITA RYUICHI , IWASE TETSUYA
IPC分类号： F23C10/22
摘要： PROBLEM TO BE SOLVED: To provide a fuel distributor for fluidized bed boiler in which fuel can be distributed smoothly, regardless of the supply conditions of fuel or dispersant. SOLUTION: The furnace of a fluidized bed boiler comprises a vessel 1, an air supply opening 2, air nozzles 3, a fuel nozzle 4, and a group of heating tubes 5. A dispersing member 6 projecting downward and a collecting member 7 projecting upward are arrange vertically at a constant interval between the fuel nozzle 4 and the group of heating tubes 5. More specifically, the hollow cone type collecting members 7 projecting upwards and having an opening 8 at the upper end disperses fuel supplied from the opening 8. Since the fuel 12 supplied from the fuel nozzle 4 is collected substantially entirely and dispersed by the dispersing member 6, even if the spreading of fuel is varied, fuel is dispersed uniformly regardless of the fluid condition.

9. 发明专利

JPH11201401A FLUIDIZED BED COMBUSTOR 失效
公开(公告)号：JPH11201401A
公开(公告)日：1999-07-30
申请号：JP134198
申请日：1998-01-07
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： ITO OSAMU , MIYAMOTO TOMOHIKO , KAWABE RYUHEI , KAWASAKI TERUFUMI , FUJIWARA HIDENARI , OKI KATSUYA
IPC分类号： F23M9/10 , F22B1/02 , F22B37/10 , F23C10/16 , F23C11/02
摘要： PROBLEM TO BE SOLVED: To detect the abnormal abrasion within a furnace in its early stage, by preventing the biased existence of fuel mixture or the abrasion of a heat conductive pipe caused by a fluidizing medium or fuel mixture. SOLUTION: This combustor is one which supplies a furnace 3, where a fluid medium a is fluidized to make a fluidized bed 4, with fuel mixture b including a fuel, and combusts it, and heats a heat conductive pipe 5 provided in the fluidized bed 4 and heats the water c1 flowing in this heat conductive pipe 6. In this case, this is provided with a guide vane 12 where a projection and recess to prevent the blow through to the upper area of this fuel mixture b are combined, and an L-shaped board 16 which covers the underside of the heat conductive pipe 6, and, at the place to detect the quantity of abrasion within the furnace, a quantity-of-abrasion detecting element 20 whose electric property changes according to the quantity of the surface abrasion, above the in-furnace injection port 10 for fuel mixture b.

10. 发明专利

JP2003185105A FLUIDIZED BED BOILER APPARATUS 审中-公开
公开(公告)号：JP2003185105A
公开(公告)日：2003-07-03
申请号：JP2001387497
申请日：2001-12-20
申请人： BABCOCK HITACHI KK
发明人： IWASE TETSUYA , TOKAWA KENJI , KAWASAKI TERUFUMI
IPC分类号： F23C10/20 , F22B1/02
摘要： PROBLEM TO BE SOLVED: To reduce wear to a heating tube of a fluidized-bed boiler without providing measures against wear directly on the heating tube. SOLUTION: This boiler apparatus comprises a fluidized bed furnace 3 for burning fuel in a flowing medium 1, an air dispersing plate 7 mounted on the bottom of the fluidized bed furnace 3, an air nozzle 8 fitted on the air dispersing plate 7, a window box 9 for supplying fluidized air to the fluidized bed furnace 3 through the air nozzle 8 and the air dispersing plate 7, a fuel nozzle 11 for supplying fuel to the fluidized bed furnace 3, and the heating tube 13 provided above the fuel nozzle 11. In this boiler apparatus, the superficial velocity of the fluidized air during fluidized layer combustion is between twice and four times as large as fluidization starting speed. COPYRIGHT: (C)2003,JPO

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