EP3086034A1 - Procédé permettant de connecter des surfaces à échange de chaleur à une structure principale d'une chaudière, chaudière et module de chaudière - Google Patents

Procédé permettant de connecter des surfaces à échange de chaleur à une structure principale d'une chaudière, chaudière et module de chaudière Download PDF

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Publication number
EP3086034A1
EP3086034A1 EP15164252.7A EP15164252A EP3086034A1 EP 3086034 A1 EP3086034 A1 EP 3086034A1 EP 15164252 A EP15164252 A EP 15164252A EP 3086034 A1 EP3086034 A1 EP 3086034A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanging
module
exchanging surfaces
main structure
boiler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15164252.7A
Other languages
German (de)
English (en)
Inventor
Christoph Boecker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Technology GmbH
Original Assignee
General Electric Technology GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Technology GmbH filed Critical General Electric Technology GmbH
Priority to EP15164252.7A priority Critical patent/EP3086034A1/fr
Priority to CN201610245934.0A priority patent/CN106066034B/zh
Publication of EP3086034A1 publication Critical patent/EP3086034A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/24—Supporting, suspending, or setting arrangements, e.g. heat shielding
    • F22B37/244—Supporting, suspending, or setting arrangements, e.g. heat shielding for water-tube steam generators suspended from the top
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/104—Connection of tubes one with the other or with collectors, drums or distributors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/22—Drums; Headers; Accessories therefor
    • F22B37/225—Arrangements on drums or collectors for fixing tubes or for connecting collectors to each other

Definitions

  • the present invention relates to a method for connecting heat exchanging surfaces to a main structure of a boiler, boiler and boiler module.
  • the boiler is a large boiler of a power plant for electric power generation.
  • Boilers are known to comprise a main structure (also known as steel structure) that supports heat exchanging surfaces such as (from the top of the boiler downwards) an economizer, a reheater, a superheater, an evaporator.
  • a main structure also known as steel structure
  • heat exchanging surfaces such as (from the top of the boiler downwards) an economizer, a reheater, a superheater, an evaporator.
  • the main structure is erected first and the heat exchanging surfaces are then element-by-element connected to the main structure, often by handling them with large cranes.
  • An aspect of the invention includes providing a method for connecting heat exchanging surfaces to a main structure of a boiler, a boiler and a boiler module that allow a quick boiler erection.
  • the heat exchanging surfaces can e.g. be the economizer and/or reheater and/or superheater and/or evaporator.
  • the boiler 1 ( figures 2 and 3 ) comprises a main structure 2 including a tower 3 and a top grid 4 above the tower 3.
  • the main structure 2 supports heat exchanging surfaces.
  • the boiler can be any type of boiler, such as e.g. a tower boiler or a two pass boiler.
  • the main structure 2 is connected to and supports modules 5 that define heat exchanging surfaces.
  • the modules 5 can be a whole or a section of: an evaporator, a superheater, a reheater, an economizer.
  • Each module 5 comprises ( figures 5-8 ) outer hanger supports 6 and peripheral heat exchanging surfaces 7; preferably each module defines a cross section of the boiler.
  • the outer hanger supports 6 can be connected to and support the peripheral heat exchanging surfaces 7 e.g. via posts (other example are anyhow possible).
  • the outer hanger supports 6 can be solid bars or tubular bar, e.g. to allow steam circulation through them, in order to allow a similar thermal expansion for the outer hanger supports 6 as for the peripheral heat exchanging surfaces 7 and counteract differential expansion through the boiler that could cause stress.
  • the peripheral heat exchanging surfaces 7 can be defined by tubed walls, e.g. they can comprise tubes 8 and fins 9 (but the fins 9 are optional).
  • the outer hanger supports 6 are directly (i.e. the supports 6 are connected to the main structure 2) or indirectly (i.e. the supports 6 are connected to another element that is in turn directly or indirectly connected to the main structure 2) connected to the main structure 2.
  • the outer hanger supports 6 are directly or indirectly connected to the upper part of the main structure 2 and/or top grid 4.
  • peripheral heat exchanging surfaces 7 of each module 5 are connected to the peripheral heat exchanging surfaces 7 of another module 5.
  • connection of the peripheral heat exchanging surfaces 7a, 7b of different modules 5 can be done by welding each tube 8a of the peripheral heat exchanging surfaces 7a to another tube 8b of the peripheral heat exchanging surfaces 7b.
  • Reference 11 indicates the welds between the tubes 8a, 8b.
  • the welds 11 are also provided between the fins 9a, 9b of the peripheral heat exchanging surfaces 7a, 7b.
  • the modules 5 can have peripheral heat exchanging surfaces 7a, 7b, having collectors 12a, 12b connected to a headers 13a, 13b.
  • the header 13a of a module can be connected to the header 13b of the other module in order to realize the connection.
  • This connection can for example be made with a pipe 14.
  • connections by directly welding the tubes 8 (and possibly the fins 9) and by connecting together the headers 13a and 13b can be implemented in the same boiler but at different parts thereof.
  • the modules 5 can comprise internal heat exchanging surfaces 15 located within the peripheral heat exchanging surfaces 7 ( figures 5-7 ).
  • the module preferably defines a cross section of the boiler.
  • the internal heat exchanging surfaces 15 can for example define a superheater or a reheater or an economizer. In addition, they are preferably defined by coil pipes.
  • the modules 5 have inner hanger supports 16 connected to the internal heat exchanging surfaces 15.
  • the inner hanger supports 16 can be defined by solid posts or by tubes, in this last case the hanger supports can be part of a superheater or reheater and are connected to headers.
  • the internal heat exchanging surfaces 15 of a module are connected to the internal heat exchanging surfaces 15 of another module.
  • the internal heat exchanging surfaces 15a, 15b i.e. the coil pipes defining them
  • the internal heat exchanging surfaces 15a, 15b i.e. the coil pipes defining them
  • an intermediate pipe 16 could be used (but this is not mandatory).
  • the internal heat exchanging surfaces 15a, 15b i.e. the coil pipes defining them
  • the internal heat exchanging surfaces 15a, 15b are connected by connecting the header 17a of an internal heat exchanging surface 15a of a module to the header 17b of the internal heat exchanging surface 15b of the other module.
  • an intermediate pipe 16 can be used also in this case.
  • the inner hanger supports 16, the internal heat exchanging surfaces 15, the outer hanger supports 6 and the peripheral heat exchanging surfaces 7 are connected together.
  • FIG 3 shows the main structure 2 with a top grid 4 supporting the modules 5a-5e.
  • the modules 5a-5c have their peripheral heat exchanging surfaces 7 that define sections of the superheater; the module 5c has its inner heat exchanging surfaces 15 that define an additional section of the superheater.
  • the modules 5b and 5a have their inner heat exchanging surfaces 15 that define a reheater.
  • the modules 5d and 5e define an evaporator.
  • All modules 5a-5e have outer hanger supports 6 that are connected together; the outer hanger supports 6 of the module 5a are directly connected to the top grid 4 and the outer hanger supports 6 of the other modules are connected to the outer hanger supports 6 of overlaying module.
  • modules 5a-5c also have the inner hanger supports 16 connected together; the inner hanger supports 16 of the module 5a are connected to the top grid 4 and the inner hanger supports 16 of the other modules 5b, 5c are connected to the inner hanger modules 16 of the overlaying module.
  • a first duct 20 connects the headers 13e of the module 5e to a water supply; for example the first duct 20 is connected to a supply pump and a condenser, possibly via a reservoir.
  • the module 5e and 5d are connected by welds 11 provided between the tubes (and fins) of their peripheral heat exchanging surfaces 7.
  • the heaters 13d are connected to the upper headers 13a, the lower headers 13a are connected to the upper headers 13b; the lower headers 13b are connected to the upper header 13c; the lower headers 13c are connected to the lower header 17c of the inner heat exchanging surface of the module 5c; the upper header 17c is connected to the high pressure turbine.
  • the upper headers 17a of the inner heat exchanging surface 15a of the module 5a is connected to the high pressure turbine outlet, the lower headers 17a is connected to the upper headers 17b and the lower headers 17b is connected to the low pressure turbine.
  • the modules 5a-5c have the peripheral heat exchanging surfaces 7 provided with collectors and headers and the inner heat exchanging surfaces 15 provided with headers; the connection can thus take place by connecting the headers.
  • this connection can be done by providing pipes between the headers.
  • the modules 5d and 5e (defining the evaporator) are reciprocally connected by welding their tubes 8, while the connection with the other modules or water supply occurs via headers 13d, 13e.
  • the boiler has a similar structure as the boiler of figure 3 , but the modules are connected in a different way, i.e. some connections that in the example 1 are done by collectors and headers are done in this example by directly welding the tubes 8.
  • the modules 5a-5b have their peripheral heat exchanging surfaces 7 whose tubes 8 are directly connected together by welds 11.
  • the inner heat exchanging surfaces are also in this example provided with headers.
  • the modules 5d and 5e are connected as described with reference to the example 1.
  • connections among the modules can be any; e.g.:
  • the specific described configurations for the boilers are not mandatory and the boiler configuration can be any according to the needs; e.g. the evaporator can be defined by one or more modules, the superheater can be defined by one or more modules and/or by peripheral and/or inner heat exchanging surfaces; the reheater can be defined by one or more modules and/or by peripheral and/or inner heat exchanging surfaces.
  • Figures 5 and 6 show a module without one peripheral heat exchanging surface 7 (for clarity); these figures show a module having the peripheral heat exchanging surfaces 7 that are not provided with any collector or header.
  • This module further has inner heat exchanging surfaces 15 that are provided with headers 17.
  • the peripheral heat exchanging surfaces define a superheater or a section of a superheater and the inner heat exchanging surfaces can define a superheater or a section of a superheater or a reheater or a section of a reheater.
  • This module is similar to the module of the example 3; in particular this module has the peripheral heat exchanging surfaces 7 with collectors 12 and headers 13.
  • the inner heat exchanging surface 15 has headers 17 as well.
  • the peripheral heat exchanging surfaces define a superheater or a section of a superheater and the inner heat exchanging surfaces can define a superheater or a section of a superheater or a reheater or a section of a reheater.
  • This module has the peripheral heat exchanging surfaces 7 without collectors or headers. No inner heat exchanging surfaces are provided.
  • the peripheral heat exchanging surfaces can define an evaporator or a section of an evaporator (in particular an intermediate section of an evaporator to be connected to other sections of evaporator by welding both ends of the tubes 8 of the peripheral heat exchanging surfaces to the tubes 8 of the peripheral heat exchanging surfaces of other modules).
  • the present invention also refers to a method for connecting heat exchanging surfaces to the main structure 2 of a boiler.
  • the method comprises erecting the main structure 2 ( figure 1 ); typically the tower 3 is erected first and preferably the top grid 4 is not provided on top of it at this stage; assembling the modules comprising at least outer hanger supports 6 and peripheral heat exchanging surfaces 7, in addition, preferably the module to be connected to the top of the main structure 2 can be connected to the top grid 4; connecting the outer hanger supports 6 to the main structure 2; this is advantageously done by lifting the modules 5 as indicated by the arrow F, e.g. with strand jacks 29; the strand jacks 29 can be temporary (i.e.
  • the top grid 4 is part of a module 5 (the module to be connected to the top of the main structure 2), the top grid 4 is lifted via the strand jacks 29 and is then connected to the main structure 2; connecting together the peripheral heat exchanging surfaces 7 of adjacent modules 5 ( figures 3 or 4 ).
  • Connecting the outer hanger supports 6 to the main structure 2 comprises directly or indirectly connecting the outer hanger supports 6 to the main structure 2.
  • This connection can e.g. be a welded connection.
  • Connecting together the peripheral heat exchanging surfaces 7 can be done in different ways.
  • connecting together the peripheral heat exchanging surfaces 7 comprises welding each tube 8 of a peripheral heat exchanging surface 7 of a module 5 to a tube 8 of a peripheral heat exchanging surface 7 of another module 5.
  • modules can have peripheral heat exchanging surfaces 7 having a collector 12 connected to headers 13; in this case connecting together the peripheral heat exchanging surfaces 7 comprises connecting the header 13 of a module 5 to the header 13 of another module 5.
  • the method further comprises connecting the internal heat exchanging surface 15 of a module 5 to the internal heat exchanging surface 15 of another module 5.
  • connecting the internal heat exchanging surface 15 of a module 5 to the internal heat exchanging surface 15 of another module 5 is done by directly welding the internal heat exchanging surfaces 15 together or via the intermediate pipe 16.
  • connecting the internal heat exchanging surface 15 of a module to the internal heat exchanging surface 15 of another module comprises connecting the headers 17 of the internal heat exchanging surface of the module to the header 17 of the internal heat exchanging surfaces the other module.
  • the module 5a connected first to the main structure 2 (this module can comprise the top grid 4, but this is not mandatory) is directly hanged to the main structure 2 (e.g. via the top grid 4 according to the design), and the other modules 5b-5e successively connected to the main structure 2 are indirectly connected to the main structure 2 by connecting them in sequence below the modules already connected to the main structure 2.
  • the strand jacks 29 are connected to the outer hanger supports 6 and to the peripheral heat exchanging surfaces 7 and to the internal heat exchanging surfaces 15 (if provided).
  • a module the one to be connected at the top of the main structure 2
  • the outer hanger supports 6, the peripheral heat exchanging surfaces 7 and the internal heat exchanging surfaces 15 (if provided) are connected to the top grid 4
  • the strand jacks 29 can be only connected to the top grid 4.
  • the present invention also refers to a method to assemble a module.
  • This method comprises ( figures 13-20 ) providing a module assembling table 30 ( figure 13 ), providing peripheral heat exchanging surface assembling tables 31 ( figure 13 ), providing the module assembling table with lifting towers 32 ( figure 14 ), assembling the peripheral heat exchanging surfaces 7 on the peripheral heat exchanging surface assembling tables 31 ( figure 15 ), possibly the peripheral heat exchanging surfaces 7 can also be provided with buckstays 33 (i.e. stiffening elements for the peripheral heat exchanging surfaces 7; figure 16 ), lifting the peripheral heat exchanging surfaces 7 in vertical position on the module assembling table 30 ( figure 17 ), removing the peripheral heat exchanging surface assembling tables 31 ( figure 13 ), providing outer hanger supports 6 ( figure 18 ) and, if needed, the collector and headers and protections for the collector and headers.
  • buckstays 33 i.e. stiffening elements for the peripheral heat exchanging surfaces 7; figure 16
  • At least an internal heat exchanging surface 15 can be installed at least while providing the outer hanger supports 6.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
EP15164252.7A 2015-04-20 2015-04-20 Procédé permettant de connecter des surfaces à échange de chaleur à une structure principale d'une chaudière, chaudière et module de chaudière Withdrawn EP3086034A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15164252.7A EP3086034A1 (fr) 2015-04-20 2015-04-20 Procédé permettant de connecter des surfaces à échange de chaleur à une structure principale d'une chaudière, chaudière et module de chaudière
CN201610245934.0A CN106066034B (zh) 2015-04-20 2016-04-20 将热交换表面连到锅炉主要结构的方法、锅炉和锅炉模块

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15164252.7A EP3086034A1 (fr) 2015-04-20 2015-04-20 Procédé permettant de connecter des surfaces à échange de chaleur à une structure principale d'une chaudière, chaudière et module de chaudière

Publications (1)

Publication Number Publication Date
EP3086034A1 true EP3086034A1 (fr) 2016-10-26

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Application Number Title Priority Date Filing Date
EP15164252.7A Withdrawn EP3086034A1 (fr) 2015-04-20 2015-04-20 Procédé permettant de connecter des surfaces à échange de chaleur à une structure principale d'une chaudière, chaudière et module de chaudière

Country Status (2)

Country Link
EP (1) EP3086034A1 (fr)
CN (1) CN106066034B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109664052A (zh) * 2019-02-01 2019-04-23 大唐东营发电有限公司 一种锅炉施工吊装方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111256098B (zh) * 2018-11-30 2022-05-31 川崎重工业株式会社 导热管块、废热回收锅炉以及废热回收锅炉的施工方法
CN114923177B (zh) * 2022-06-15 2024-03-01 清华大学 双介质tfb气化焚烧炉和实施废料气化焚烧方法

Citations (7)

* Cited by examiner, † Cited by third party
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JPH06313501A (ja) * 1993-04-30 1994-11-08 Hitachi Plant Eng & Constr Co Ltd 吊下げ式ボイラの火炉側耐圧部一体スリング工法
JPH06323503A (ja) * 1993-05-11 1994-11-25 Hitachi Plant Eng & Constr Co Ltd 大型吊下げ式ボイラの組立方法
EP0777080A1 (fr) * 1995-11-28 1997-06-04 GEC ALSTHOM Stein Industrie Procédé de montage d'une chaudière de production de vapeur
JPH11100902A (ja) * 1997-09-25 1999-04-13 Hitachi Plant Eng & Constr Co Ltd 大梁の据付け工法
JP2002213707A (ja) * 2001-01-19 2002-07-31 Mitsubishi Heavy Ind Ltd セパレート型ボイラプラント及びその建設工法
US20070272172A1 (en) * 2006-05-29 2007-11-29 Hitachi Plant Technologies, Ltd. Method of installing furnace walls of a boiler
WO2012173092A1 (fr) * 2011-06-16 2012-12-20 株式会社日立プラントテクノロジー Procédé de construction d'une installation de chaudière

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DE10335499B3 (de) * 2003-07-31 2004-11-25 Alstom Power Boiler Gmbh Montageverfahren für einen Dampferzeuger
CN101910776B (zh) * 2008-01-14 2013-12-04 巴布科克和威尔科克斯能量产生集团公司 换热器
CN101581446A (zh) * 2009-06-18 2009-11-18 哈尔滨工业大学 一种产生过热蒸汽的对流废热锅炉
CN201599786U (zh) * 2010-01-14 2010-10-06 中国石油化工集团公司 加热炉对流段余热锅炉受热面的模块式结构
CN201748392U (zh) * 2010-06-28 2011-02-16 山东骏马石油设备制造集团有限公司 车载、移动撬装式烟气三回程注汽锅炉

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06313501A (ja) * 1993-04-30 1994-11-08 Hitachi Plant Eng & Constr Co Ltd 吊下げ式ボイラの火炉側耐圧部一体スリング工法
JPH06323503A (ja) * 1993-05-11 1994-11-25 Hitachi Plant Eng & Constr Co Ltd 大型吊下げ式ボイラの組立方法
EP0777080A1 (fr) * 1995-11-28 1997-06-04 GEC ALSTHOM Stein Industrie Procédé de montage d'une chaudière de production de vapeur
JPH11100902A (ja) * 1997-09-25 1999-04-13 Hitachi Plant Eng & Constr Co Ltd 大梁の据付け工法
JP2002213707A (ja) * 2001-01-19 2002-07-31 Mitsubishi Heavy Ind Ltd セパレート型ボイラプラント及びその建設工法
US20070272172A1 (en) * 2006-05-29 2007-11-29 Hitachi Plant Technologies, Ltd. Method of installing furnace walls of a boiler
WO2012173092A1 (fr) * 2011-06-16 2012-12-20 株式会社日立プラントテクノロジー Procédé de construction d'une installation de chaudière

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109664052A (zh) * 2019-02-01 2019-04-23 大唐东营发电有限公司 一种锅炉施工吊装方法

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Publication number Publication date
CN106066034A (zh) 2016-11-02
CN106066034B (zh) 2019-12-27

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