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    A CIRCULATING FLUIDIZED BED BOILER WITH A LOOPSEAL HEAT EXCHANGER
    1.
    发明申请
    A CIRCULATING FLUIDIZED BED BOILER WITH A LOOPSEAL HEAT EXCHANGER 有权

    公开(公告)号：US20210372610A1

    公开(公告)日：2021-12-02

    申请号：US16761701

    申请日：2018-12-12

    Applicant: Valmet Technologies Oy

    Inventor： Pekka LEHTONEN ,  Tero HEINO

    IPC: F22B31/00 ,  F23C10/06 ,  F23C10/10 ,  F23C10/20 ,  F23C10/28

    Abstract: A circulating fluidized bed boiler, comprising a furnace, a loopseal, and a loopseal heat exchanger arranged in the loopseal. The loopseal heat exchanger comprises at least an inlet chamber, a bypass chamber, and a first heat exchange chamber, heat exchanger pipes arranged in the first heat exchange chamber, and a primary particle outlet for letting out bed material from the first heat exchange chamber. The primary particle outlet has at least a first part and a second part separated from each other by a barrier element in such a way that the first part of the primary particle outlet has a first height and a first width, wherein a ratio of the first height to the first width is less than 0.5 or more than 2. Use of the circulating fluidized bed boiler such that fluidizing gas and bed material are let out from the first heat exchange chamber via the primary particle outlet.

    Method and apparatus for providing a gas seal in a return duct and/or controlling the circulating mass flow in a circulating fluidized bed reactor
    4.
    发明授权
    Method and apparatus for providing a gas seal in a return duct and/or controlling the circulating mass flow in a circulating fluidized bed reactor 失效
    在回流管道中提供气体密封和/或控制循环流化床反应器中的循环质量流的方法和装置

    公开(公告)号：US5601039A

    公开(公告)日：1997-02-11

    申请号：US331605

    申请日：1994-11-04

    Applicant: Timo Hyppanen

    Inventor： Timo Hyppanen

    IPC: F23C10/02 ,  F22B1/02 ,  F22B31/00 ,  F23C10/06 ,  F23C10/10 ,  F23C10/18 ,  F23G5/00

    CPC classification number: F22B31/0084 ,  F23C10/10 ,  F23C2206/101 ,  F23C2206/103 ,  F23J2900/15025

    Abstract: Method and apparatus for providing a gas seal in a CFB reactor, which is provided with a vertical, slot-shaped return duct (16), and for regulating the flow of circulating mass therein. The gas seal (22) is formed by arranging barrier means (22, 24, 26) on two different levels in the regulation zone of the return duct to slow down the flow of the circulating mass through the regulation zone. The flow of the circulating mass through the regulation zone is regulated by injecting fluidizing gas (56, 58, 60) into the regulation zone.

    Abstract translation: PCT No.PCT / FI93 / 00208 Sec。 371日期：1994年11月4日 102（e）日期1994年11月4日PCT提交1993年5月18日PCT公布。 公开号WO93 / 23703 日期：1993年11月25日用于在CFB反应器中提供气体密封的方法和装置，该反应器设置有垂直的槽形回流管道（16），并用于调节其中的循环质量流。 气体密封件（22）通过在返回管道的调节区域中的两个不同水平面上布置阻挡装置（22,24,26）而形成，以减缓循环质量块通过调节区域的流动。 循环质量通过调节区的流动通过将流化气体（56,58,60）注入调节区来调节。

    Method and device for measuring circulation quantity of bed material in circulating fluidized bed combustor
    7.
    发明授权
    Method and device for measuring circulation quantity of bed material in circulating fluidized bed combustor 有权
    循环流化床燃烧器床层循环量测量方法及装置

    公开(公告)号：US07562641B2

    公开(公告)日：2009-07-21

    申请号：US11813250

    申请日：2005-12-27

    Applicant: Takahiro Murakami ,  Koubun Kyo ,  Toshiyuki Suda

    Inventor： Takahiro Murakami ,  Koubun Kyo ,  Toshiyuki Suda

    IPC: F23C10/06

    CPC classification number: G01F1/007 ,  F23C10/10 ,  F23C10/32

    Abstract: In order to quantitatively evaluate actual circulation quantity of bed material extremely simply and to enhance accuracy of comparison of results of thermal balance examined through simulation or the like with actual operation results, time is measured which is required for bed material in a downcomer 5 to reach an upper predetermined height H1 from a lower reference height H0 during stopped feeding of fluidizing air to an external heat exchanger 7; a flow rate of the bed material as circulation quantity is determined from the time and an accumulated amount of the bed material based on an inner diameter D of the downcomer 5.

    Abstract translation: 为了非常简单地定量评价床材的实际循环量，通过模拟等与实际运行结果相比提高热平衡结果的比较精度，可以测量降液管5中床材所需的时间 在将流化空气停止供给到外部热交换器7期间，从较低基准高度H0的上限预定高度H1; 基于降液管5的内径D，从床材料的时间和累积量确定床材料的流量作为循环量。

    Internal circulating fluidized bed type boiler and method of controlling the same
    8.
    发明授权
    Internal circulating fluidized bed type boiler and method of controlling the same 失效
    内循环流化床式锅炉及其控制方法

    公开(公告)号：US5138982A

    公开(公告)日：1992-08-18

    申请号：US760858

    申请日：1991-09-17

    Applicant: Takahiro Ohshita ,  Tsutomu Higo ,  Shigeru Kosugi ,  Naoki Inumaru ,  Hajime Kawaguchi

    Inventor： Takahiro Ohshita ,  Tsutomu Higo ,  Shigeru Kosugi ,  Naoki Inumaru ,  Hajime Kawaguchi

    IPC: B01J8/18 ,  F22B31/00 ,  F23C10/00 ,  F23C10/06 ,  F23C10/14 ,  F23G5/30

    CPC classification number: B01J8/1818 ,  F22B31/0061 ,  F22B31/0092 ,  F23C10/005 ,  F23C10/06 ,  F23C10/14 ,  F23G5/30 ,  B01J2208/00141

    Abstract: An internal recycling type fluidized bed boiler includes a primary fluidized bed incinerating chamber constructed by an air diffusion plate, and an inclined partition wall provided above a portion of the diffusion plate where the mass flow of the air injected from the diffusion plate is greater than that from another portion so as to interfere with the upward flow of the fluidizing air injected from that portion and deflect it towards the portion above the diffusion plate where the mass flow of gas injected is smaller. A thermal energy recovery chamber is formed between the inclined partition wall and a side wall of an incinerator. The inclined partition wall is inclined by 10.degree.-60.degree. relative to the horizontal and is arranged such that the length of its projection in the horizontal direction is 1/6-1/2 of the horizontal length of the bottom of the incinerator bottom. A method of controlling the above fluidized bed boiler with respect to the amount of thermal energy recovered from the thermal energy recovery chamber includes regulating the amount of air injected from a diffuser in the thermal energy recover chamber, based on demands from the user side utilizing the recovered thermal energy. The amount of fuel to the primary fluidized bed incinerating chamber is controlled based on the temperature in the primary fluidized bed incinerating chamber.

    Abstract translation: PCT No.PCT / JP87 / 00530 Sec。 371 1990年1月4日第 102（e）日期1990年1月4日PCT PCT 1987年7月20日PCT公布。 出版物WO89 / 00659 日本1989年1月26日。内部回收型流化床锅炉包括由空气扩散板构成的一级流化床焚烧室，以及设置在扩散板的一部分上方的倾斜分隔壁， 扩散板大于来自另一部分的扩散板，以便干扰从该部分注入的流化空气的向上流动并将其偏转到扩散板上方的部分，其中注入的气体的质量流量较小。 在倾斜分隔壁和焚烧炉侧壁之间形成热能回收室。 倾斜分隔壁相对于水平面倾斜10°-60°，其水平方向的长度为焚烧炉底部底部水平长度的1 / 6-1 / 2。 控制上述流化床锅炉相对于从热能回收室回收的热能量的方法包括：根据来自用户侧的需求调节在热能回收室中从扩散器喷出的空气量， 回收热能。 基于初级流化床焚烧室中的温度控制到初级流化床焚烧室的燃料量。

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