[go: up one dir, main page]

WO2011069333A1 - Dispositif d'isolation thermique et d'étanchéité entre un faisceau de tubes de surface chauffante de platine de chaudière et des tubes de paroi supérieure de chaudière - Google Patents

Dispositif d'isolation thermique et d'étanchéité entre un faisceau de tubes de surface chauffante de platine de chaudière et des tubes de paroi supérieure de chaudière Download PDF

Info

Publication number
WO2011069333A1
WO2011069333A1 PCT/CN2010/001978 CN2010001978W WO2011069333A1 WO 2011069333 A1 WO2011069333 A1 WO 2011069333A1 CN 2010001978 W CN2010001978 W CN 2010001978W WO 2011069333 A1 WO2011069333 A1 WO 2011069333A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube bundle
heating surface
insulating material
surface tube
insulation
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.)
Ceased
Application number
PCT/CN2010/001978
Other languages
English (en)
Chinese (zh)
Inventor
刘义
陶虹新
刘建斌
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.)
SHANGHAI BOILIER WORKS Ltd
Original Assignee
SHANGHAI BOILIER WORKS Ltd
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 SHANGHAI BOILIER WORKS Ltd filed Critical SHANGHAI BOILIER WORKS Ltd
Publication of WO2011069333A1 publication Critical patent/WO2011069333A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/107—Protection of water tubes
    • 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
    • F22B37/105—Penetrations of tubes through a wall and their sealing

Definitions

  • the invention relates to a device for preventing high temperature flue gas from leaking at a screen heating surface through a top tube bundle, and at the same time ensuring that the outer surface temperature reaches a safety standard, and particularly relates to a boiler screen type heating surface tube bundle topping Tube insulation and sealing device.
  • the screen type heating surface tube bundle in the boiler passes through the top tube of the furnace, and there is a certain gap between the two, which requires sealing design and heat preservation.
  • the difference in medium temperature between the two due to the difference in medium temperature between the two, there is a difference in expansion, and it is necessary to consider the sealing structure. Expansion problem.
  • the prior art utilizes a sealed box welded to the top tube bundle to seal the screen-type heated surface tube bundle and the top tube, and the metal expansion joint absorbs the expansion displacement between the screen-type heated surface tube bundle and the furnace tube. Finally, the sealing box, the metal expansion joint, the screen heating surface tube bundle, and the top tube are integrally covered with a temperature-preserving material to reduce the surface temperature.
  • the technology uses metal expansion joints to absorb and expand, and can only absorb the difference in expansion between the screen-type heating surface tube bundle and the top tube of the furnace roof within a limited range, and the expansion material is prone to occur due to the expansion structure in the overall insulation coating. The phenomenon of being pulled down, thus affecting the safe operation of the boiler. Disclosure of invention
  • the object of the present invention is to provide a boiler screen type heating surface tube bundle topping tube heat insulating and sealing device which is made of an insulating material, is not easily damaged and has a simple structure.
  • the technical proposal of the present invention provides a boiler screen type heating surface tube bundle topping tube heat insulating and sealing device, which is used for contacting the contact between the top tube and the screen type heating surface tube bundle. Sealed
  • the device comprises a sealing box which is sleeved outside the contact between the above-mentioned screen type heating surface tube bundle and the top tube;
  • a first insulating material layer disposed outside the panel heating surface tube bundle; and a non-metallic expansion joint disposed between the first insulating material layer and the second insulating material layer.
  • the above sealed box is provided with a refractory heat insulating material.
  • the first layer of insulating material comprises a plurality of layers of different insulating materials.
  • the second layer of insulating material comprises a plurality of layers of different insulating materials.
  • the above non-metallic expansion joint is provided with an insulating material.
  • the invention relates to a boiler screen type heating surface tube bundle top tube insulation and sealing device compared with the prior art sealing device, which has the advantage that the first heat insulating material layer is provided on the upper part of the screen heating surface tube bundle,
  • the second insulation material layer is disposed on the top pipe, and the first insulation material layer and the second insulation material layer are relatively independent, and the upper part of the screen heating surface tube bundle and the furnace top tube are independently insulated to ensure smooth expansion during operation of the boiler;
  • the non-metallic expansion joint of the invention absorbs the difference between the expansion of the screen-type heating surface tube bundle and the furnace top tube, thereby avoiding the damage of the furnace roof insulation material due to the expansion of the boiler and ensuring the safety of the worker;
  • the invention adopts a non-metallic expansion joint, and the non-metal expansion joint is provided with a heat insulating material, and the non-metallic expansion joint absorbs the difference between the screen type heating surface tube bundle and the top tube of the furnace, and achieves the purpose of heat preservation.
  • the outer wall temperature of the boiler is expanded to meet the safety standard;
  • the invention is provided with the first heat insulating material layer and the second heat insulating material layer, and the fireproof heat insulating material is arranged in the sealed box, thereby greatly reducing the contact between the screen heating surface and the furnace top tube bundle
  • the external surface temperature reduces the heat loss of the boiler and ensures the safety of the operator.
  • FIG. 1 is a schematic view showing the structure of a heat insulating and sealing device for a boiler panel-type heated face tube bundled through tube. The best way to implement the invention
  • the present invention discloses a boiler screen type heating surface tube beam-through furnace top tube heat preservation and sealing device, which is used for sealing the contact between the furnace top tube 2 and the screen type heating surface tube bundle .
  • the top pipe 2 is horizontally disposed at the top of the boiler.
  • the screen heating surface tube bundle 1 is vertically disposed at the top end of the boiler. The lower half of the screen heating surface tube bundle 1 passes through the top of the boiler and enters the interior of the boiler.
  • the screen type heating surface tube bundle 1 and the furnace top tube 2 have a contact point, the boiler panel type heating surface tube bundles the furnace top tube insulation and sealing device, that is, the screen type heating surface tube bundle 1 and the furnace top tube 2 The contact between the portions is sealed, and the screen-type heated tube bundle 1 and the top tube 2 are insulated.
  • the boiler screen type heating surface tube bundles the top pipe insulation and sealing device comprises a sealing box 3 ⁇ 4.
  • the sealing box 3 is arranged on the top pipe 2, and the sealing box 3 is sealedly connected with the contact surface between the top pipe 2 and the boiler.
  • the screen type heating surface tube bundle 1 is vertically stringed in the sealing case 3, and the contact surface between the sealing box 3 and the screen type heating surface tube bundle 1 is also sealedly connected.
  • the seal box 3 seals the contact portion of the screen-type heated face tube bundle 1 with the furnace top tube 2 in the inner cavity of the sealed casing 3.
  • a refractory heat retaining material 4 is cast in the sealed box 3.
  • the contact between the screen type heating surface tube bundle 1 and the top tube 2 is sealed in the sealed box 3 to prevent smoke leakage at the place.
  • the refractory insulating material 4 also serves as a heat insulating effect.
  • the boiler screen type heating surface tube bundle top tube insulation and sealing device further comprises a first insulation material layer 5, a second insulation material layer 6 and a non-metal expansion joint 7.
  • the second layer of insulating material 6 is tightly sleeved on the outside of the sealed box 3.
  • the second layer of insulating material 6 is made of several layers of insulating materials of different materials, and the insulating materials of the plurality of layers are selected according to national standards, according to the temperature conditions of the furnaces of different sizes. According to the standard calculated temperature, the outer part is generally wrapped with ceramic fiber and high temperature glass wool.
  • the several layers of thermal insulation material are sequentially stacked in the vertical direction.
  • the sealing box 3 wrapped by the second thermal insulation material layer 6 is horizontally arranged, for the convenience of installation, the second A plurality of insulating materials within the layer of insulating material 6 are arranged in a vertically stacked manner.
  • the first heat insulating material layer 5 is tightly sleeved on the outside of the upper end of the screen heating surface tube bundle 1.
  • the first heat insulating material layer 5 is also made of several layers of different materials of heat insulating material, and the outer part is generally wrapped with ceramic 'fiber and high temperature glass wool.
  • the plurality of layers of thermal insulation materials are selected according to national standards, and the plurality of layers of thermal insulation materials are selected to be vertically stacked in a direction perpendicular to the radial direction of the screen-type heated surface tube bundle 1 according to the temperature conditions of the furnaces of different sizes according to the standard temperature.
  • the panel-type heated surface tube bundle 1 wrapped in the layer 5 is vertically arranged.
  • a plurality of insulation materials in the first insulation layer 5 are arranged in a laterally stacked manner.
  • the non-metallic expansion joint 7 is disposed on the first heat insulating material layer 5 and the second heat insulating material layer 6 , and the non-metal expansion joint 7 is closely adhered to the first heat insulating material layer 5 and the second heat insulating material layer 6 respectively.
  • the non-metallic expansion joint 7 is a device with a non-metallic material texture and capable of absorbing expansion, absorbing the difference in expansion between the screen-type heating surface tube bundle 1 and the furnace top tube 2, avoiding the first insulation material layer 5 and the second layer of insulating material 6 are damaged by the expansion of the boiler, which is different from the corrugated board shell of the metal expansion joint.
  • the non-metallic expansion joint 7 is filled with a heat insulating material, and the heat insulating material is also used.
  • the heat insulating material in the non-metal expansion joint can be made of different materials according to the manufacturer of the non-metallic expansion joint. Material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

L'invention concerne un dispositif d'isolation thermique et d'étanchéité entre un faisceau de tubes de surface chauffante de platine de chaudière (1) et des tubes de paroi supérieure de chaudière (2), qui est utilisé pour assurer l'étanchéité d'une jonction entre les tubes de paroi supérieure de chaudière (2) et le faisceau de tubes de surface chauffante de platine (1). Le dispositif comprend une boîte d'étanchéité (3) qui est agencée à l'extérieur de la jonction entre le faisceau de tubes de surface chauffante de platine (1) et les tubes de paroi supérieure de chaudière (2). Le dispositif comprend également une seconde couche d'isolation thermique (6) agencée à l'extérieur de la boîte d'étanchéité (3), une première couche d'isolation thermique (5) agencée à l'extérieur de la partie supérieure du faisceau de tubes de surface chauffante de platine (1), et un joint de dilatation non métallique (7) disposé entre la première couche d'isolation thermique (5) et la seconde couche d'isolation thermique (6).
PCT/CN2010/001978 2009-12-09 2010-12-07 Dispositif d'isolation thermique et d'étanchéité entre un faisceau de tubes de surface chauffante de platine de chaudière et des tubes de paroi supérieure de chaudière Ceased WO2011069333A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2009202128273U CN201724196U (zh) 2009-12-09 2009-12-09 一种锅炉屏式受热面穿炉顶管束保温和密封装置
CN200920212827.3 2009-12-09

Publications (1)

Publication Number Publication Date
WO2011069333A1 true WO2011069333A1 (fr) 2011-06-16

Family

ID=43492531

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/001978 Ceased WO2011069333A1 (fr) 2009-12-09 2010-12-07 Dispositif d'isolation thermique et d'étanchéité entre un faisceau de tubes de surface chauffante de platine de chaudière et des tubes de paroi supérieure de chaudière

Country Status (2)

Country Link
CN (1) CN201724196U (fr)
WO (1) WO2011069333A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103062752B (zh) * 2012-12-30 2016-01-20 深圳市广前电力有限公司 用于燃机余热锅炉穿墙管的隔热保温结构
CN103912860B (zh) * 2014-03-28 2015-11-04 无锡华光锅炉股份有限公司 一种用于锅炉集箱穿墙处的密封结构
CN110566931B (zh) * 2019-09-24 2020-12-01 西安热工研究院有限公司 一种防治锅炉管穿顶棚密封处开裂的穿顶棚结构及改造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10259902A (ja) * 1997-03-18 1998-09-29 Babcock Hitachi Kk ボイラ天井壁貫通部のシール構造
JPH11118102A (ja) * 1997-10-16 1999-04-30 Babcock Hitachi Kk ボイラ天井壁貫通部のシール構造
JPH11218302A (ja) * 1998-02-02 1999-08-10 Babcock Hitachi Kk 火炉壁貫通部のシール構造
JP2000291903A (ja) * 1999-04-07 2000-10-20 Babcock Hitachi Kk ボイラ天井壁貫通部のシールプレート構造
CN101004258A (zh) * 2006-01-18 2007-07-25 天津市津鲁源电力工程技术服务有限公司 电厂锅炉立体柔性密封方法
CN101315182A (zh) * 2007-06-01 2008-12-03 过典正 一种管道与锅炉本体结合部的密封方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10259902A (ja) * 1997-03-18 1998-09-29 Babcock Hitachi Kk ボイラ天井壁貫通部のシール構造
JPH11118102A (ja) * 1997-10-16 1999-04-30 Babcock Hitachi Kk ボイラ天井壁貫通部のシール構造
JPH11218302A (ja) * 1998-02-02 1999-08-10 Babcock Hitachi Kk 火炉壁貫通部のシール構造
JP2000291903A (ja) * 1999-04-07 2000-10-20 Babcock Hitachi Kk ボイラ天井壁貫通部のシールプレート構造
CN101004258A (zh) * 2006-01-18 2007-07-25 天津市津鲁源电力工程技术服务有限公司 电厂锅炉立体柔性密封方法
CN101315182A (zh) * 2007-06-01 2008-12-03 过典正 一种管道与锅炉本体结合部的密封方法

Also Published As

Publication number Publication date
CN201724196U (zh) 2011-01-26

Similar Documents

Publication Publication Date Title
CN105909918B (zh) 一种柔性保温组件
CN205227273U (zh) 用于余热锅炉穿墙管道的密封装置
WO2011069333A1 (fr) Dispositif d'isolation thermique et d'étanchéité entre un faisceau de tubes de surface chauffante de platine de chaudière et des tubes de paroi supérieure de chaudière
WO2011063613A1 (fr) Structure d'étanchéité d'un écran de refroidissement d'eau passant à travers un mur d'eau
CN217081735U (zh) 一种热力管道保温隔热结构
CN203309873U (zh) 增压锅炉的穿墙双密封结构
CN101852325A (zh) 保温层结构
CN204612480U (zh) 一种加热炉炉顶出口密封结构
CN207147301U (zh) 一种急冷换热器管板隔热结构
CN202171096U (zh) 一种对流段炉管出入口密封保温结构
CN209370684U (zh) 一种耐高温补偿器
CN116838878A (zh) 一种易于密封保温的预制保温管组件及其组装方法
WO2019092673A1 (fr) Feuille d'isolation thermique souple
CN209705539U (zh) 一种弹性耐高温隔热结构
CN209229212U (zh) 一种耐高温非金属补偿器
CN219975668U (zh) 一种电厂锅炉炉顶柔性纤维喷涂密封装置
CN107893890A (zh) 橡胶膨胀节及管道
CN220892296U (zh) 一种耐膨胀密封性好的锅炉炉墙
CN223120869U (zh) 余热锅炉穿墙管密封装置
CN215337765U (zh) 一种浇铸埋管式低应力高效换热装置
CN217951212U (zh) 万能自锁柔性高温密封套
CN201819241U (zh) 锅炉炉墙密封装置
CN217877179U (zh) 工业炉套筒式炉管密封装置
CN207112771U (zh) 一种锅炉集箱结构布置
CN206246841U (zh) 余热锅炉墙管炉外柔性密封装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2011/07814

Country of ref document: TR

WWE Wipo information: entry into national phase

Ref document number: 6303/DELNP/2011

Country of ref document: IN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10835370

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10835370

Country of ref document: EP

Kind code of ref document: A1