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公开(公告)号：US06532905B2
公开(公告)日：2003-03-18
申请号：US09906993
申请日：2001-07-17
IPC分类号： F28D1300
CPC分类号： F22B31/0084 , F22B31/0023
摘要： A circulating fluidized bed (CFB) boiler has one or more bubbling fluidized bed enclosures containing heating surfaces and located within a lower portion of the CFB boiler to provide a compact, efficient design with a reduced footprint area. The heating surfaces are provided within the bubbling fluidized bed located above a CFB grid and/or in a moving packed bed below the CFB grid inside the lower portion of the CFB boiler. Solids in the bubbling fluidized bed are maintained in a slow bubbling fluidized bed state by separately controlled fluidization gas supplies. Separately controlled fluidization gas is used to control bed level in the bubbling fluidized beds or to control the throughput of solids through the bubbling fluidized beds. Solids ejected from the bubbling fluidized beds can be returned directly into the surrounding CFB environment of the CFB boiler, or purged from the system for disposal or recycle back into the CFB. Solids which are recycled back to the CFB have less heat and can be used to control the temperature of the fast moving bed in the CFB.
摘要翻译： 循环流化床（CFB）锅炉具有一个或多个含有加热表面并且位于CFB锅炉的下部内的起泡流化床外壳，以提供紧凑，有效的设计，减少占地面积。 加热表面设置在位于CFB格栅上方的起泡流化床内和/或在CFB锅炉下部的CFB格栅下方的移动填充床中。 鼓泡流化床中的固体通过单独控制的流化气体供应维持在缓慢的起泡流化床状态。 单独控制的流化气体用于控制鼓泡流化床中的床层或控制通过鼓泡流化床的固体的通过量。 从起泡流化床喷出的固体可以直接返回到CFB锅炉的周围CFB环境中，或者从系统中清除，以便将其回收回CFB。 循环回CFB的固体具有较少的热量，可用于控制CFB中快速移动床的温度。
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公开(公告)号：US06500221B2
公开(公告)日：2002-12-31
申请号：US09865609
申请日：2001-05-25
申请人： David J. Walker , Mikhail Maryamchik , Sundara M. Kavidass , Felix Belin , Kiplin C. Alexander , David E. James , David R. Gibbs , Donald L. Wietzke
发明人： David J. Walker , Mikhail Maryamchik , Sundara M. Kavidass , Felix Belin , Kiplin C. Alexander , David E. James , David R. Gibbs , Donald L. Wietzke
IPC分类号： B01D4508
CPC分类号： B01D45/08 , F22B31/0084 , F23C10/08
摘要： Apparatus for separating solids from flue gas in a circulating fluidized bed (CFB) boiler includes plural vertical, impact type particle separators made of cooling tubes located within the CFB in a plurality of staggered rows. One embodiment employs a plurality of stacked, slip fit elements having apertures which accept the cooling tubes. The slip fit elements cooperate with one another to form a collecting channel, typically U-shaped, which separates particles from flue gases conveyed across the particle separators. Shiplap joints in between the individual slip fit elements prevent gas and solids from leaking therebetween and allow for thermal expansion. Alternatively, the impact type particle separators include cooling tubes connected to one another to form a unitary structure. Pin studs welded to the cooling tubes and covered with a coating of refractory; ceramic tiles; metal or ceramic spray coatings; metal or ceramic castings; weld overlay; and/or shields provide erosion resistance.
摘要翻译： 用于在循环流化床（CFB）锅炉中从烟道气中分离固体的装置包括多个垂直的冲击型颗粒分离器，其由位于CFB内的多个交错排中的冷却管制成。 一个实施例采用具有接收冷却管的孔的多个堆叠的滑动配合元件。 滑动配合元件彼此配合以形成通常为U形的收集通道，其将颗粒与通过颗粒分离器输送的烟道气分离。 单个滑动配合元件之间的刮板接头可防止气体和固体在其间泄漏，并允许热膨胀。 或者，冲击式颗粒分离器包括彼此连接以形成一体结构的冷却管。 销螺栓焊接到冷却管并覆盖有耐火材料涂层; 瓷砖; 金属或陶瓷喷涂; 金属或陶瓷铸件; 焊缝覆盖层; 和/或防护罩提供抗侵蚀性。
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3.发明授权公开(公告)号：US06454824B1
公开(公告)日：2002-09-24
申请号：US09865332
申请日：2001-05-25
申请人： Mikhail Maryamchik , Kiplin C. Alexander , Felix Belin , David R. Gibbs , David J. Walker , Donald L. Wietzke
发明人： Mikhail Maryamchik , Kiplin C. Alexander , Felix Belin , David R. Gibbs , David J. Walker , Donald L. Wietzke
IPC分类号： B01D4508
摘要： Apparatus for separating solids from flue gas in a circulating fluidized bed (CFB) boiler comprises plural vertical, impact type particle separators located within the CFB in a plurality of staggered rows. The impact type particle separators employ hung elements supported from fluid-cooled tubes which form a collecting channel, typically U-shaped, which separates particles from flue gases conveyed across the particle separators. By separating the support function from the collection shape required by functional performance considerations, the strength requirements of the material used to form the collection shape are reduced and the strength of the material from which the fluid-cooled support is made is much higher due to the lower operating temperature of the material comprising the fluid-cooled support, thereby permitting the use of lower cost materials.
摘要翻译： 用于在循环流化床（CFB）锅炉中从烟道气中分离固体的装置包括位于CFB内的多个交错行的多个垂直冲击型颗粒分离器。 冲击式颗粒分离器采用由流体冷却管支撑的悬挂元件，其形成通常为U形的收集通道，其将颗粒与通过颗粒分离器输送的烟道气分离。 通过将支撑功能与由功能性能考虑所需的收集形状分离，用于形成收集形状的材料的强度要求降低，并且制造流体冷却支撑件的材料的强度由于 包括流体冷却的载体的材料的较低的操作温度，从而允许使用较低成本的材料。
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公开(公告)号：US06863703B2
公开(公告)日：2005-03-08
申请号：US10135432
申请日：2002-04-30
CPC分类号： F23J15/027 , B01D45/12 , B01J8/005 , B01J8/0065 , B01J8/388 , B01J2208/00141 , F23C10/10
摘要： A circulating fluidized bed (CFB) unit utilizing a mechanical dust collector located in a vertical flue above at least one heat exchange surface, and at least partially underneath the floor of a non-vertical flue, includes a plurality of individual collection elements each having a downward bottom outlet for a flow of cleaned gas conveyed through the collection elements.
摘要翻译： 循环流化床（CFB）单元利用位于至少一个热交换表面上方并且至少部分地位于非垂直烟道底部的垂直烟道中的机械除尘器，包括多个单独收集元件，每个收集元件具有 向下的底部出口，用于通过收集元件输送的净化气体流。
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公开(公告)号：US07464669B2
公开(公告)日：2008-12-16
申请号：US11406765
申请日：2006-04-19
IPC分类号： F23C10/24
CPC分类号： F23C10/18 , F23J1/00 , F23J2900/01002
摘要： An integrated fluidized bed ash cooler for a fluidized bed boiler, particularly a circulating fluidized bed (CFB) boiler, employs at least two fluidized bed sections positioned in series along a solids flow path. Each section contains fluidizing means, the first section along the solids path being separated from a following section with a threshold. The first section contains means for measuring a bed temperature in the vicinity of the fluidizing means and at a higher elevation within the fluidized bed. Means are provided for removing oversized bed material from the first section to facilitate the removal of ash while minimizing the possibility of ash plugging during operation.
摘要翻译： 用于流化床锅炉，特别是循环流化床（CFB）锅炉的集成流化床灰分冷却器采用沿着固体流动路径串联定位的至少两个流化床部分。 每个部分包含流化装置，沿着固体路径的第一部分与具有阈值的随后部分分离。 第一部分包含用于测量流化床附近的床温度以及在流化床内的较高高度的装置。 提供了用于从第一部分移除超大床层材料的手段，以便于在运行期间最小化灰尘堵塞的可能性的灰分除去。
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公开(公告)号：US20090025658A1
公开(公告)日：2009-01-29
申请号：US12175102
申请日：2008-07-17
IPC分类号： F22B33/00
CPC分类号： F22B37/42 , F23C10/10 , F23J2219/10
摘要： A system and method for quickly cooling and de-pressurizing a boiler arrangement in the event of a plant power loss, a.k.a. a black plant condition. A steam discharge system injects steam from the steam/water circuit into the furnace, thereby both cooling components of the boiler arrangement and reducing pressure in the steam/water circuit. This reduces or eliminates the additional cost associated with providing extra capacity in a steam drum and/or an independently powered boiler water pump. The system and method is particularly useful for quickly cooling the U-beams of a circulating fluidized bed (CFB) boiler during a black plant condition. In application to boiler arrangements with a selective non-catalytic reduction (SNCR) system employing steam as a carrier for a NOx reducing agent, the steam discharge system advantageously uses the discharge nozzles of the SNCR system to inject the steam into the furnace.
摘要翻译： 一种在工厂电力损失的情况下快速冷却和减压锅炉装置的系统和方法，例如黑色植物条件。 蒸汽排放系统将来自蒸汽/水回路的蒸汽注入炉中，从而将锅炉装置的冷却部件和蒸汽/水回路中的压力降低。 这减少或消除了在蒸汽鼓和/或独立供电的锅炉水泵中提供额外容量的附加成本。 该系统和方法特别适用于在黑色植物条件下快速冷却循环流化床（CFB）锅炉的U型梁。 在应用具有使用蒸汽作为NOx还原剂的载体的选择性非催化还原（SNCR）系统的锅炉装置时，蒸汽排放系统有利地使用SNCR系统的排放喷嘴将蒸汽注入炉中。
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公开(公告)号：US08047162B2
公开(公告)日：2011-11-01
申请号：US12175102
申请日：2008-07-17
IPC分类号： B01D45/00
CPC分类号： F22B37/42 , F23C10/10 , F23J2219/10
摘要： A system and method for quickly cooling and de-pressurizing a boiler arrangement in the event of a plant power loss, a.k.a. a black plant condition. A steam discharge system injects steam from the steam/water circuit into the furnace, thereby both cooling components of the boiler arrangement and reducing pressure in the steam/water circuit. This reduces or eliminates the additional cost associated with providing extra capacity in a steam drum and/or an independently powered boiler water pump. The system and method is particularly useful for quickly cooling the U-beams of a circulating fluidized bed (CFB) boiler during a black plant condition. In application to boiler arrangements with a selective non-catalytic reduction (SNCR) system employing steam as a carrier for a NOx reducing agent, the steam discharge system advantageously uses the discharge nozzles of the SNCR system to inject the steam into the furnace.
摘要翻译： 一种在工厂电力损失的情况下快速冷却和减压锅炉装置的系统和方法，例如黑色植物条件。 蒸汽排放系统将来自蒸汽/水回路的蒸汽注入炉中，从而将锅炉装置的冷却部件和蒸汽/水回路中的压力降低。 这减少或消除了在蒸汽鼓和/或独立供电的锅炉水泵中提供额外容量的附加成本。 该系统和方法特别适用于在黑色植物条件下快速冷却循环流化床（CFB）锅炉的U型梁。 在应用具有使用蒸汽作为NOx还原剂的载体的选择性非催化还原（SNCR）系统的锅炉装置时，蒸汽排放系统有利地使用SNCR系统的排放喷嘴将蒸汽注入炉中。
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8.发明授权Floored impact-type solids separator using downward expanding separator elements 失效地下冲击型固体分离器使用向下扩张的分离器元件公开(公告)号：US06681722B1
公开(公告)日：2004-01-27
申请号：US10273917
申请日：2002-10-18
IPC分类号： F22B100
CPC分类号： F22B31/0084 , F23C10/08 , F23J2217/20
摘要： A collection element arrangement is provided having sleeve attachments near their lowermost ends which simulate a continuous sloping surface, or floor. The sleeve attachments upper surfaces forming the floor permit collected solids to flow down the sloping surface back into the furnace or reactor chamber. Stainless steel can be used for the collection elements and sleeve attachments since the floating floor accommodates differential thermal expansion between CFB components.
摘要翻译： 提供收集元件布置，其在其最下端附近具有套筒附件，其模拟连续的倾斜表面或地板。 套筒附件形成地板的上表面允许收集的固体沿着倾斜的表面向下流回炉或反应室。 不锈钢可以用于收集元件和套筒附件，因为浮动地板容纳CFB部件之间的差分热膨胀。
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9.发明授权Circulating fluidized bed reactor with floored internal primary particle separator 有权循环流化床反应器内置一次粒子分离器
公开(公告)号：US6095095A
公开(公告)日：2000-08-01
申请号：US206353
申请日：1998-12-07
CPC分类号： F23C10/08 , B01D45/08 , B01J8/0065 , B01J8/388 , B07B7/04 , F23J2217/20
摘要： A CFB reactor or combustor having an impact type primary particle separator collects solids particles from a flow of flue gas/solids and returns the collected particles along an inclined or substantially horizontal planar floor to a bottom portion of the reactor or combustor for subsequent recirculation.
摘要翻译： 具有冲击型一次粒子分离器的CFB反应器或燃烧器从烟气/固体流中收集固体颗粒，并将收集的颗粒沿着倾斜或基本上水平的平面底板返回到反应器或燃烧器的底部，用于随后的再循环。
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公开(公告)号：US06967005B2
公开(公告)日：2005-11-22
申请号：US09958622
申请日：2001-02-06
CPC分类号： F23J15/006 , B01D53/8631 , B01J8/005 , B01J8/0055 , B01J8/388 , B01J2208/00292 , B01J2208/0053 , B01J2219/00006 , F23C2206/10 , F23J2217/101 , F23J2217/102 , F23J2217/20 , F23J2217/40 , F23J2219/10 , F23J2219/60
摘要： A CFB reactor or combustor having a selective catalytic reduction (SCR) system (150) employed downstream of the CFB reactor or combustor furnace (10) together with a dry scrubber system (220) to achieve enhanced NOx reduction.
摘要翻译： 在CFB反应器或燃烧器炉（10）的下游与干式洗涤器系统（220）一起使用具有选择性催化还原（SCR）系统（150）的CFB反应器或燃烧器，以实现增强的NO x 减少。
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