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    Circulating fluidized bed with in-furnace secondary air nozzles
    1.
    发明授权
    Circulating fluidized bed with in-furnace secondary air nozzles 有权

    公开(公告)号：EP2312210B1

    公开(公告)日：2018-12-05

    申请号：EP10179170.5

    申请日：2010-09-24

    申请人： The Babcock & Wilcox Company

    发明人： Maryamchik, Mikhail ,  Alexander, Kiplin C. ,  Godden, Mark C. ,  Karaft, David L.

    IPC分类号： F23C10/14 ,  F23L9/06

    CPC分类号： F23C10/14 ,  F23C2206/103 ,  F23L9/06

    摘要： A circulating fluidized bed (CFB) boiler includes a reaction chamber, where a bubbling fluidized bed (BFB) is contained within an enclosure within the lower portion of the reaction chamber and contains an in-bed heat exchanger (IBHX) that occupies part of the reaction chamber floor. A plurality of in-bed secondary air nozzles comprise a plurality of tubes which are grouped together and run across the width of the BFB between the BFB enclosure wall and an outside wall of the CFB. The nozzles are positioned to prevent the deflection of solids falling onto the BFB from the CFB by the secondary air jets while avoiding a complicated structure that would interfere with gas and/or solids movement in the furnace. The nozzles' exit openings are flush, or almost flush, with the BFB enclosure wall.

    In-bed solids control valve for fluidised bed boiler
    2.
    发明公开
    In-bed solids control valve for fluidised bed boiler 审中-公开
    用于流化床锅炉的床内固体控制阀

    公开(公告)号：EP2348252A3

    公开(公告)日：2017-07-19

    申请号：EP10178226.6

    申请日：2010-09-22

    申请人： The Babcock & Wilcox Company

    发明人： Maryamchik, Mikhail ,  Alexander, Kiplin C. ,  Godden, Mark C. ,  Karaft, David L.

    IPC分类号： F22B31/00

    CPC分类号： F22B31/0023 ,  F22B31/0061 ,  F22B31/0084 ,  F22B31/0092 ,  F23C10/10 ,  F23C10/20 ,  F23C10/24 ,  F23C10/30

    摘要： A circulating fluidized bed (CFB) boiler comprising a reaction chamber (1). A bubbling fluidized bed (BFB) (4) is contained within an enclosure within the lower portion of the reaction chamber and contains an in-bed heat exchanger (IBHX) (3) that occupies part of the reaction chamber floor. At least one non-mechanical valve (40), which includes an opening between the CFB and BFB (4) and independently controlled fluidizing means located both upstream and downstream of the opening, is used to control the heat transfer to the IBHX (3) by controlling the solids discharge from the BFB (4) to the CFB. The elevation of the bottom of the opening is at or above the elevation of the fluidizing means. A flow control barrier may be located downstream of the opening.

    摘要翻译： 包括反应室（1）的循环流化床（CFB）锅炉。 鼓泡流化床（BFB）（4）容纳在反应室下部内的外壳内，并包含占据反应室底部的一部分的床内热交换器（IBHX）（3）。 至少一个包括位于CFB和BFB（4）之间的开口的非机械阀（40）和位于开口上游和下游的独立控制的流化装置用于控制向IBHX（3）的热传递， 通过控制从BFB（4）到CFB的固体排放。 开口底部的高度等于或高于流化装置的高度。 流量控制屏障可位于开口的下游。