CN1197689A - 联接到一循环流化床反应器的浓流化床热交换器 - Google Patents

联接到一循环流化床反应器的浓流化床热交换器 Download PDF

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CN1197689A
CN1197689A CN98105539A CN98105539A CN1197689A CN 1197689 A CN1197689 A CN 1197689A CN 98105539 A CN98105539 A CN 98105539A CN 98105539 A CN98105539 A CN 98105539A CN 1197689 A CN1197689 A CN 1197689A
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wall
pipe
dividing plate
fluidized bed
extension
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CN1100600C (zh
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让-奥比
加米尔-达乌德
阿兰-夸兰塔
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General Electric Technology GmbH
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GEC Alsthom Stein Industrie
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/0007Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
    • F22B31/0084Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed with recirculation of separated solids or with cooling of the bed particles outside the combustion bed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/0007Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
    • F22B31/0015Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed for boilers of the water tube type
    • F22B31/0023Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed for boilers of the water tube type with tubes in the bed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D13/00Heat-exchange apparatus using a fluidised bed

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

本发明涉及浓流化床热交换器,具有一箱体(1),其纵向立壁(1A,1B)由运送载热流体的管子组成,箱体在其长度方向上由溢流隔板(10)分割成相互隔离的室,隔板(10)由运送载热流体管子组成的壁构成。所述纵向立壁(1A,1B)由水平管子(11A,11B,12A,12B)组成,隔板从箱体(1)底壁开始在低于箱体(1)壁的高度上延伸,所述隔板由纵向立面(1A,1B)的管子(11A,11B)的发夹形横向延伸部分叠加而成,延伸部分与管子垂直,一直延伸到相对的纵向立面(1B,1A)。

Description

联接到一循环流化床反应器的浓流化床热交换器
本发明涉及联接到一个循环流化床反应器的浓流化床热交换器。
更确切地说它涉及这样的浓流化床热交换器,它具有一个箱体,其垂直纵向壁由运送载热流体的管子组成,并且在其长度方向上由一溢出隔板将其分割成相互分开的室,该隔板由运送载热流体的管子组成的一个壁构成。
这样的热交换器一般用于燃料设备,包括一个有气体出口的循环流化床热交换器,气体送到一台旋风分离器中,其回收的固体至少在部分被重新注入循环流化床热交换器前在此浓流化床中进行处理。
按照传统做法,浓流化床热交换器在箱体中包括一定数量的室:
-一个固体接收室,固体由一孔注入室中,
-至少一个中间室,固体越过第一隔板后溢出到该室中,
-一个固体输出室,该室接收越过第二隔板的固体,该室带有一个固体排出孔。
中间室装备一个供应流化空气的下箱,在室的下壁上装备有流化空气的喷嘴,中间室还装备有一个热交换器,该热交换器通常装配多根平行的载热流体运输管,例如在室横向配置的运输蒸汽管,这些蒸汽运输管悬挂在室的上壁上,管子在下部与载热流体输入收集器联接,而在上部与被加热的这种流体输出收集器联接。
因此,在该室中进行固体浓缩流化,由热交换器回收其热量。
众所周知,采用载热流体运送管的方法来实现箱体的纵向壁,以便增加热交换,回收热量,从而提高设备效率。
已知的这样的隔板都由立式管壁组成,并在箱体整个高度上伸展,且具有一些小窗口,这些小窗口以所希望的溢出高度分布在它们的宽度上。
这种溢出配置不能让固体在箱体的整个宽度上通过,考虑到隔板的从下到上的立管的连续性,窗口要有合适的宽度,这种配置不能使固体从一个室向另一个室进行连续和最佳的流动。
本发明解决了这一问题,提出由管子构成隔板的配置能够在给定的高度上实施,因此能使固体在隔板上面连续溢出而不受干扰。
为了做到这点,根据本发明,所述纵向立面由水平管构成,所述壁由每个纵向立面的管子的叠加的横向延伸部分构成,并且呈发夹形,与管子垂直并一直伸展到相对的纵向立面。
因此,可以使隔板具有任意的高度。
根据优选的实施方案,这些延伸部分从一个平面到另一个平面垂直交替,以便达到机械稳定性和载热流体流量的平衡。
为了实现流体静力学性能,最好,由双层管壁构成的隔板在内部由横向联杆加强。
根据优选的制造方案,在每个立壁的两个管子中一个管子具有朝向另一壁的这样的一延伸部分,并在两个这样的延伸部分之间插入另一壁的一个延伸部分,与另一壁的管子处于相同水平面上,该另一壁不带延伸部分。
有利的是,隔板的上部呈断面缩小的斜角形。
借助附图,下面更详细地描述本发明,这些图只示出本发明的一种优选实施方案。
图1是一个浓流化床热交换器箱体的立体示意图。
图2是根据本发明的热交换器的详细立体图。
图3是沿图2中II-II的局部剖视图。
图4是根据本发明的热交换器的局部拆开的立体图。
按传统方式,在图1所示的浓流化床热交换器的箱体1中包括一定数量的室:
-一个固体接收室2,在该室中由孔3注入固体。
-至少一个室4、5,在该室中固体越过第一隔板10A后溢出,并由相同类型的隔板10B将其相互分隔,
-一个固体输出室6,该室接收越过另一隔板10c的固体,并具有一固体排放孔7。
正如在图2所看到的,根据本发明,纵向立壁1A、1B由水平管11A、12A和11B、12B构成。
隔板10由每个纵向立壁1A、1B的管11A、11B的叠加的横向延伸部分组成,延长部分呈发夹形,与所述管子垂直,一直延伸到相对的纵向立面1B、1A。
更确切地讲,在每个立壁1A、1B的两个管11A、11B中的一个管具有朝向另一壁1B、1A的这样的一个延伸部分。在两个这样的延伸部分之间插入另一壁1B、1A的一个延伸部分,该延伸部分与不带延伸部分的另一壁1A、1B的管12A、12B在同一个水平面上。
隔板10的上部形成断面缩小的斜角。
这样,实现了管子之间恒定不变的间距,不论在立壁上或在隔板上都是如此,没有管子的交叉。
按照传统方式,用金属翼板封闭管壁,因此形成所有相邻管的联接,隔板外部覆盖一层混凝土13(图3)。
这种管结构通过在隔板内部设置横向联杆来加强机械性能。
隔板10的上部在图3的剖视图上可以看到。
一条高位横向联杆14显示于图3,这是在发夹形延伸部分的两个分枝之间焊接的一条杆。这样的横向联杆14分布在隔板上部的高度上和宽度上,以便得到所希望的机械稳定性。
正如在图4上看到的,在隔板10下部,在宽度上分布的横向联杆确保了机械稳定性,也确保了与箱体下壁的联接。
这个称作底板的下壁也由水平管构成,更确切地说,由水平翼板联接起来的管子组成的一个上壁15构成。在此壁每个管子下面,通过垂直翼板17将另一管16联接到每个管子。沿隔板的纵向,与隔板成直角设置的两根拉杆18焊接在底板上,并穿过垂直翼板17。与这些拉杆18相联安置有撑板19,其最大高度等于隔板断面恒定部分的高度,并由一块金属板或等同物构成,在侧面具有槽口,以接纳延长部分的管子。

Claims (5)

1.浓流化床热交换器,具有一个箱体(1),其纵向立壁(1A,1B)由运送载热流体的管子组成,并在其长度方向上由溢出隔板(10)分割成相互分离的室,隔板由运送载热流体的管子组成的壁构成,其特征在于,所述纵向立壁(1A,1B)由水平管(11A,11B,12A,12B)组成,所述隔板从箱体(1)的下壁开始,在低于箱体高度的高度上延伸,隔板由每个纵向立面(1A,1B)的管子(11A,11B)的发夹形的横向延伸部分叠加而成,延伸部分与管子垂直,一直延伸到对面的纵向立面(1B,1A)。
2.根据权利要求1所述的浓流化床热交换器,其特征在于,这些延伸部分从一个面到另一个面垂直地交替配置。
3.根据上述权利要求之一所述的浓流化床热交换器,其特征在于,由双管壁构成的隔板在其内部由横向联杆(14,19)进行加强。
4.根据权利要求2所述的浓流化床热交换器,其特征在于,每个立壁(1A,1B)的两个管子(11A,11B)中的一个管子具有这样一个朝向另一壁(1B,1A)的延伸部分,两个这样的延伸部分之间插入另一壁(1B,1A)的一个延伸部分,该壁(1B,1A)的延伸部分与不带延伸部分的另一壁(1A,1B)的管子(12A,12B)在同一水平面上。
5.根据上述权利要求之一所述的热交换器,其特征在于,隔板的上部呈断面缩小的斜角形。
CN98105539A 1997-03-13 1998-03-12 联接到一循环流化床反应器的浓流化床热交换器 Expired - Lifetime CN1100600C (zh)

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FR9702991A FR2760829B1 (fr) 1997-03-13 1997-03-13 Echangeur a lit fluidise dense destine a etre associe a un reacteur a lit fluidise circulant
FR9702991 1997-03-13

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US (1) US5979367A (zh)
EP (1) EP0864834B1 (zh)
JP (1) JPH10318686A (zh)
CN (1) CN1100600C (zh)
AT (1) ATE434164T1 (zh)
CA (1) CA2230098A1 (zh)
DE (1) DE69840901D1 (zh)
FR (1) FR2760829B1 (zh)
ZA (1) ZA982102B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101922874A (zh) * 2010-06-22 2010-12-22 北京烨晶科技有限公司 组合式换热器及流化床反应器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2884900B1 (fr) * 2005-04-26 2007-11-30 Alstom Technology Ltd Reacteur a lit fluidise avec double extension de paroi

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893426A (en) * 1974-03-25 1975-07-08 Foster Wheeler Corp Heat exchanger utilizing adjoining fluidized beds
US4173950A (en) * 1978-07-03 1979-11-13 Combustion Engineering, Inc. Coal fired fluid bed module for a single elevation style fluid bed power plant
FI97315C (fi) * 1990-09-26 1996-11-25 Stein Industrie Leijukerroskattilan tulipesäseinämän jäähdytyslaitteisto
DE4135582A1 (de) * 1991-10-29 1993-05-06 Metallgesellschaft Ag, 6000 Frankfurt, De Wirbelbettkuehler fuer eine anlage zum thermischen behandeln koerniger feststoffe in der wirbelschicht

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101922874A (zh) * 2010-06-22 2010-12-22 北京烨晶科技有限公司 组合式换热器及流化床反应器
CN101922874B (zh) * 2010-06-22 2012-07-18 四川金象赛瑞化工股份有限公司 组合式换热器及流化床反应器

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ZA982102B (en) 1998-10-21
CN1100600C (zh) 2003-02-05
EP0864834A1 (fr) 1998-09-16
US5979367A (en) 1999-11-09
FR2760829A1 (fr) 1998-09-18
DE69840901D1 (de) 2009-07-30
EP0864834B1 (fr) 2009-06-17
ATE434164T1 (de) 2009-07-15
CA2230098A1 (fr) 1998-09-13
JPH10318686A (ja) 1998-12-04
FR2760829B1 (fr) 1999-05-14

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