-
1.发明公开METHOD AND ARRANGEMENT FOR FEEDING FUEL INTO A CIRCULATING FLUIDIZED BED BOILER 审中-公开将燃料输入循环流化床锅炉的方法和装置
公开(公告)号：EP2499430A1
公开(公告)日：2012-09-19
申请号：EP10829568.4
申请日：2010-10-29
发明人： KLAJNY, Marcin , KAUPPINEN, Kari , KINNUNEN, Pertti , MIETTINEN, Jouni , MYÖHÄNEN, Kari , LEHTONEN, Pekka
摘要： The present invention relates to a method and an apparatus for feeding fuel into a circulating fluidized bed boiler. The invention is specifically concerned on feeding fine, light and/or moist fuel into the boiler. The method and apparatus for feeding light, fine, volatile and/or moist fuel into a circulating fluidized bed boiler is based on collecting circulating bed material to a return flow and introducing the return flow into communication with the fuel being introduced in the furnace (12) so that the bed material return flow and the fuel are mixed together and flow downwards in the furnace (12) for increasing the residence time of the fuel in the furnace (12).
摘要翻译： 用于将燃料供给循环流化床锅炉的方法和设备技术领域本发明涉及一种用于将燃料供给到循环流化床锅炉中的方法和设备 本发明特别涉及将优质，轻质和/或潮湿的燃料送入锅炉。 用于将轻质，易挥发和/或潮湿的燃料送入循环流化床锅炉的方法和装置基于将循环床材料收集到回流并将回流引入与引入炉内的燃料（12 ），使得床料返回流和燃料混合在一起并在炉（12）中向下流动，以增加燃料在炉（12）中的停留时间。
-
公开(公告)号：EP1012502B1
公开(公告)日：2001-12-05
申请号：EP98943925.2
申请日：1998-09-14
发明人： UTUNEN, Pekka , LEHTONEN, Pekka
IPC分类号： F23C10/00
CPC分类号： B01J8/44 , F22B31/0038 , F23C10/20 , F23C10/24
摘要： A grate construction of a fluidized bed boiler comprising a furnace wherein there is maintained a fluidized bed of solid particles; a windbox (14) in the lower part of the boiler under the furnace; a grate (12) having means (22) for distributing fluidizing air or like gas from the windbox into the furnace; and means (20) for removing bed material, coarse ash and like from the grate. The means for removing bed material from the grate comprise several substantially vertical pockets (20) extending from the grate into the windbox and opening into the furnace, and having, at the grate level, a horizontal cross section in the form of a longitudinal slit and having a downwards tapering vertical cross section parallel with the slits. The pockets divide the grate into sections (401, 402, 403, 404, 405).
-
公开(公告)号：EP1012502A1
公开(公告)日：2000-06-28
申请号：EP98943925.2
申请日：1998-09-14
发明人： UTUNEN, Pekka , LEHTONEN, Pekka
IPC分类号： F23C11/02
CPC分类号： B01J8/44 , F22B31/0038 , F23C10/20 , F23C10/24
摘要： A grate construction of a fluidized bed boiler comprising a furnace wherein there is maintained a fluidized bed of solid particles; a windbox (14) in the lower part of the boiler under the furnace; a grate (12) having means (22) for distributing fluidizing air or like gas from the windbox into the furnace; and means (20) for removing bed material, coarse ash and like from the grate. The means for removing bed material from the grate comprise several substantially vertical pockets (20) extending from the grate into the windbox and opening into the furnace, and having, at the grate level, a horizontal cross section in the form of a longitudinal slit and having a downwards tapering vertical cross section parallel with the slits. The pockets divide the grate into sections (401, 402, 403, 404, 405).
-
4.发明公开A METHOD OF AND AN APPARATUS FOR RECOVERING HEAT IN A FLUIDIZED BED REACTOR 有权方法和设备HEAT IN混乱的流化床反应器
公开(公告)号：EP1613422A1
公开(公告)日：2006-01-11
申请号：EP04727304.0
申请日：2004-04-14
CPC分类号： B01J8/388 , B01J8/1818 , B01J2208/00141 , B01J2208/00548 , F22B31/0084 , F23C10/10 , F23C10/26 , F23C10/32 , F23C2206/102 , F23C2206/103 , Y02P20/124
摘要： A fluidized bed reactor, comprising a furnace, a heat exchange chamber, a substantially vertical discharge channel connected to the lower part of the heat exchange chamber for removing particulate material from the heat exchange chamber to the furnace, and a substantially vertical auxiliary channel for transferring particulate material from the heat exchange chamber to the furnace and from the furnace to the heat exchange chamber, the lower part of said auxiliary channel being provided with nozzles for fluidizing gas and with a flow conduit for connecting said auxiliary channel to the furnace and a flow conduit in the upper part for connecting said auxiliary channel to said heat exchange chamber. The furnace, heat exchange chamber, discharge channel and auxiliary channel preferably form an integrated structure having the discharge channel and the auxiliary channel adjacently arranged between the furnace and the heat exchange chamber.
-
5.发明公开
公开(公告)号：EP1210170A1
公开(公告)日：2002-06-05
申请号：EP00938844.8
申请日：2000-06-19
CPC分类号： F23C10/24 , B01J8/0005 , B01J8/0015 , B01J8/006 , B01J8/18 , B01J2208/00539 , B01J2208/00548 , F23C10/10 , F23J3/02
摘要： A method and an apparatus for conveying particulate material of a reactor pneumatically from a high pressure delivery vessel (10) to a receiving vessel (40) at a lower pressure using gas discharging from the reactor as a carrier gas, by using an apparatus comprising a conveyor line (20) and a collecting vessel (30), which collecting vessel comprises means (50) to discharge carrier gas and means (54) to control the flow rate of the carrier gas, in which the pressure in the collecting vessel is controlled in such a way that the material has almost the same pressure as the delivery vessel when conveyed to the collecting vessel, from which it is transferred to the receiving vessel essentially at the same pressure as the receiving vessel.
-
公开(公告)号：EP0708677B1
公开(公告)日：2000-03-15
申请号：EP94920483.8
申请日：1994-07-07
发明人： MARTIN, Gary , LEHTONEN, Pekka
CPC分类号： B01D46/2418 , B01D46/002 , B01D46/0068 , B01D46/2451 , B01D46/2459 , B01D46/521 , B01D2046/2488 , B01D2046/2492
摘要： Gas with entrained particles, such as high temperature and pressure gas from a pressurized circulating fluidized bed reactor, is filtered using a vessel having a gas inlet (4), cleaned gas outlet (5), and filtered particles outlet (13). A pulse of cleaning gas is periodically or intermittently directed to the filters (9) to dislodge the particles which have been filtered and collected on the filters (9). Shrouds (10), having tubular, parallelepiped, zig-zag, or honeycomb configurations, are provided surrounding relevant portions of the filters to prevent dislodged particles from being entrained in gas passing to other filters, and instead directing the dislodged particles toward the vessel particles outlet. The shroud walls may have openings in them to allow gas to be filtered to pass through them, but prevent dislodged particles from passing through the openings. The filters (9) may be mounted in hollow tubular or parallelepiped ducts (12) in such a way that the ducts have smooth outer walls, and the shrouds (10) may be substantially concentric with the ducts. When individual cleaning gas pulsing devices are associated with filters, the shrouds may include separate impingement and material collecting portions.
-
公开(公告)号：EP1766291B1
公开(公告)日：2016-10-12
申请号：EP05730947.8
申请日：2005-04-04
发明人： LEHTONEN, Pekka , MAKKONEN, Pasi , SOININEN, Riku
CPC分类号： F23C10/20 , B01J8/1827
-
8.发明授权A METHOD OF AND AN APPARATUS FOR RECOVERING HEAT IN A FLUIDIZED BED REACTOR 有权方法和设备HEAT IN混乱的流化床反应器
公开(公告)号：EP1613422B1
公开(公告)日：2008-11-19
申请号：EP04727304.0
申请日：2004-04-14
CPC分类号： B01J8/388 , B01J8/1818 , B01J2208/00141 , B01J2208/00548 , F22B31/0084 , F23C10/10 , F23C10/26 , F23C10/32 , F23C2206/102 , F23C2206/103 , Y02P20/124
摘要： A fluidized bed reactor, comprising a furnace, a heat exchange chamber, a substantially vertical discharge channel connected to the lower part of the heat exchange chamber for removing particulate material from the heat exchange chamber to the furnace, and a substantially vertical auxiliary channel for transferring particulate material from the heat exchange chamber to the furnace and from the furnace to the heat exchange chamber, the lower part of said auxiliary channel being provided with nozzles for fluidizing gas and with a flow conduit for connecting said auxiliary channel to the furnace and a flow conduit in the upper part for connecting said auxiliary channel to said heat exchange chamber. The furnace, heat exchange chamber, discharge channel and auxiliary channel preferably form an integrated structure having the discharge channel and the auxiliary channel adjacently arranged between the furnace and the heat exchange chamber.
-
公开(公告)号：EP1766291A1
公开(公告)日：2007-03-28
申请号：EP05730947.8
申请日：2005-04-04
发明人： LEHTONEN, Pekka , MAKKONEN, Pasi , SOININEN, Riku
CPC分类号： F23C10/20 , B01J8/1827
摘要： The present invention relates to a grid nozzle. A nozzle in accordance with the present invention is used advantageously in heat engineering to bring fluidizing gas to a furnace of a fluidized bed boiler. According to a most preferred embodiment, said nozzles are used for removing from a furnace solid particles drifted to the bottom of the furnace. It is typical to the grid nozzle in accordance with the present invention that it comprises a nozzle chamber (6) and a nozzle channel (8, 10) ending to a blow opening of the nozzle, which nozzle chamber and nozzle channel are limited from above by a lid (12) and a protecting cover (22, 32) attached outside the lid (12).
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.014 秒)
