WO2011063613A1 - 一种水冷屏穿过水冷壁的密封结构 - Google Patents

一种水冷屏穿过水冷壁的密封结构 Download PDF

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Publication number
WO2011063613A1
WO2011063613A1 PCT/CN2010/001908 CN2010001908W WO2011063613A1 WO 2011063613 A1 WO2011063613 A1 WO 2011063613A1 CN 2010001908 W CN2010001908 W CN 2010001908W WO 2011063613 A1 WO2011063613 A1 WO 2011063613A1
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WO
WIPO (PCT)
Prior art keywords
water
cooling
wall
screen
sealing structure
Prior art date
Application number
PCT/CN2010/001908
Other languages
English (en)
French (fr)
Inventor
尹双林
陶虹新
郑海英
汪博
Original Assignee
上海锅炉厂有限公司
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 上海锅炉厂有限公司 filed Critical 上海锅炉厂有限公司
Priority to IN388DEN2012 priority Critical patent/IN2012DN00388A/en
Publication of WO2011063613A1 publication Critical patent/WO2011063613A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M2900/00—Special features of, or arrangements for combustion chambers
    • F23M2900/05005—Sealing means between wall tiles or panels

Definitions

  • the invention relates to a sealing structure of a water-cooling screen passing through a water-cooling wall for preventing the flue gas from leaking outward or preventing cold air from being poured into the furnace, and preventing the wear-resistant refractory material from falling off in the area.
  • the sealing structure of the prior art water-cooled screen passing through the water-cooling wall is similar to the conventional pulverized coal boiler tube bundle wall-piercing structure, and is mainly sealed by a water-cooled wall sealing box composed of a comb-shaped plate and a steel plate, and is sealed by a water-cooled screen and a water-cooling wall passing through the water-cooling wall. The box is fully sealed welded.
  • the high-temperature airflow in the boiler furnace is vortexed at the junction of the water-cooled screen through the water-cooling wall due to the presence of the screen, which increases the wear of the water-cooled wall and the water-cooled screen. Therefore, the water-cooled wall and the water-cooled screen are coated with wear-resistant refractory materials. .
  • the structure has a relative displacement between the water-cooled screen tube and the water-cooling wall passing through the water-cooling wall, which often causes the brittle wear-resistant refractory material to fall off, thereby affecting the safe operation of the boiler. Disclosure of invention
  • the object of the present invention is to provide a sealing structure for a water-cooling screen passing through a water-cooling wall, which can completely seal the joint between the water-cooling screen and the water-cooling wall, and reduce the expansion displacement between the water-cooling screen and the water-cooling wall to zero, thereby avoiding The relative displacement of the water-cooled screen and the water-cooled wall that may occur during boiler operation.
  • the present invention provides a sealing structure for a water-cooled screen passing through a water-cooling wall, the sealing structure being located at a joint of a water-cooling screen through a water-cooling wall, the water-cooling wall comprising a plurality of water-cooled wall tubes and connections arranged side by side
  • the fins of the water-cooled wall tubes, the water-cooling screen comprises a plurality of water-cooled screen tubes arranged side by side, and each of the water-cooling screen tubes is fixedly provided with a sleeve, and the sleeve is fixedly connected with the fins of the water-cooling wall.
  • the water-cooling screen passes through a sealing structure of a water-cooling wall, wherein the water-cooling wall passes through the fins
  • the above-mentioned water-cooling screen passes through the sealing structure of the water-cooling wall, wherein the sleeve 'and the permanent cold-screen tube and the fins of the sleeve and the water-cooling wall are sealed and fixed by welding.
  • the above-mentioned water-cooling screen passes through the sealing structure of the water-cooling wall, wherein the water-cooled screen tube with the sleeve is coated with a wear-resistant refractory material layer.
  • the above water-cooling screen passes through the sealing structure of the water-cooling wall, wherein the outer surface of the water-cooling wall is coated with a wear-resistant refractory material layer.
  • the sleeve and the water-cooling screen tube and the fin and the fin of the water-cooling wall are sealed and fixedly connected, so that the connection between the water-cooling screen and the water-cooling wall is sealed and fixed; thereby the water-cooling screen and the water-cooling wall are
  • the expansion displacement at the joint is reduced to zero, which is also used here as an expansion zero of the water-cooled screen.
  • the water-cooled screen of the invention passes through the sealing structure of the water-cooling wall to completely solve the problem of expansion deviation of the joint between the water-cooled screen and the water-cooled wall, avoids the possible relative displacement of the water-cooled screen and the water-cooled wall, and prevents the wear-resistant refractory layer from falling off.
  • the sealing structure has the advantages of simple structure, simple manufacturing, and easy installation quality of the construction site.
  • FIG. 1 is a schematic structural view of a sealing structure of a water-cooled panel passing through a water-cooling wall according to the present invention.
  • Figure 2 is a cross-sectional view showing the sealing structure of the water-cooling panel passing through the water-cooling wall in the B-B direction of the present invention. The best way to implement the invention
  • a water-cooling screen 20 provided by the present invention passes through a sealing structure of the water-cooling wall 10.
  • the water wall 10 is laid on the inner wall of the boiler furnace as the furnace front wall of the boiler, and the water wall 10 includes a plurality of water pipes (ie, water wall tubes 11) arranged in rows, and the water wall tubes 11 pass through the fins 12 Welded into a whole, the water wall 10 is formed into a plate-like structure.
  • a wear resistant refractory layer 30 is applied to the exterior of the water wall 10.
  • the function of the water wall 10 is to absorb the radiant heat of the high temperature flame or the flue gas in the furnace, generate steam or hot water in the tube, and reduce the temperature of the furnace wall to protect the furnace wall.
  • the water-cooling screen 20 includes a water-cooled screen tube 21 that is disposed in parallel and disposed in parallel with the water-cooling wall tube 11.
  • Each of the water-cooling screen tubes 21 is spliced with a sleeve 22 at a portion passing through the water-cooling wall tube 11.
  • the water-cooled screen tube 21 with the sleeve 22 is coated with a wear-resistant refractory material layer 30.
  • the water-cooled screen tube 21 with the sleeve is passed through the water-cooling wall tube 11, and the sleeve 22 is spliced to the fins 12 of the water-cooling wall to be fixed, so that the water-cooled screen 20 and the water-cooling wall 10 are sealed.
  • the sleeve 22 and the fins 12 of the water-cooling wall are sealed and fixed in a welded manner, so that there is no expansion between the water-cooling screen 20 and the water-cooling wall 10, thereby avoiding the possibility that the water-cooling screen 20 and the water-cooling wall 10 may be generated during operation. Relative displacement.
  • the sleeve and the water-cooled screen tube and the fins of the sleeve and the water-cooling wall are sealed and welded, and the expansion displacement of the joint between the water-cooled screen and the water-cooling wall is reduced to zero, thereby avoiding the water-cooled screen and The relative displacement that may occur between the water walls, so that the water-cooled screen and the wear-resistant refractory material outside the water-cooled wall are not easily peeled off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Building Environments (AREA)

Description

一种水冷屏穿过水冷壁的密封结构 技术领域
本发明涉及一种水冷屏穿过水冷壁的密封结构， 用于防止烟气向外泄漏 或防止冷空气倒灌入炉内， 以及防止该区域耐磨耐火材料脱落。 背景技术
由于水冷壁与穿过其中的水冷屏之间存在间隙， 为了防止烟气向外泄漏 或防止冷空气倒灌入炉内需要设置一种密封结构。 现有技术的水冷屏穿过水 冷壁的密封结构与常规煤粉锅炉管束穿墙结构类似， 主要由梳形板和钢板组 成水冷壁密封盒进行密封， 穿过水冷壁的水冷屏与水冷壁密封盒进行全密封 焊接。
锅炉炉膛中的高温气流在水冷屏穿过水冷壁的连接处由于屏的存在会出 现涡流， 增加对水冷壁和水冷屏的磨损作用， 因此在水冷壁与水冷屏上均敷 有耐磨耐火材料。 在实际运行中， 该结构由于穿过水冷壁的水冷屏管与水冷 壁之间存在着相对的位移， 经常造成该部分脆性的耐磨耐火材料脱落， 从而 影响锅炉的安全运行。 发明的公开
本发明的目的是提供一种水冷屏穿过水冷壁的密封结构， 该密封结构能 使得水冷屏与水冷壁连接处完全密封， 水冷屏和水冷壁之间的膨胀位移降低 为零， 从而避免在锅炉运行中可能出现的水冷屏和水冷壁的相对位移。
为了达到上述目的， 本发明提供了一种水冷屏穿过水冷壁的密封结构， 该密封结构位于水冷屏穿过水冷壁的连接处， 所述的水冷壁包含若干并排设 置的水冷壁管及连接各水冷壁管的鳍片， 所述的水冷屏包含若干并排设置的 水冷屏管， 所述的每个水冷屏管上均固定设置有套筒， 该套筒与水冷壁的鳍 片固定连接， 构成水冷屏穿过水冷壁的密封结构。
上述的水冷屏穿过水冷壁的密封结构， 其中， 所述的水冷壁为通过鳍片
1
确认本 连接各水冷壁管形成的板状结构。
上述的水冷屏穿过水冷壁的密封结构， 其中， 所述的套筒'与永冷屏管之 间以及套筒与水冷壁的鳍片之间均通过焊接的方式密封固定。
上述的水冷屏穿过水冷壁的密封结构， 其中， 所述的带有套筒的水冷屏 管外均敷设有耐磨耐火材料层。
上述的水冷屏穿过水冷壁的密封结构， 其中， 所述的水冷壁的外部均敷 设有耐磨耐火材料层。
本发明的技术方案中， 套筒与水冷屏管之间以及套筒与水冷壁的鳍片之 间密封固定连接， 使得水冷屏与水冷壁的连接处密封固定； 从而将水冷屏与 水冷壁的连接处的膨胀位移降低为零， 亦即将此处作为水冷屏的一个膨胀零 点。 这样， 水冷屏与水冷壁之间没有胀差， 此处的耐磨耐火材料也就不易脱 落了。
本发明的水冷屏穿过水冷壁的密封结构彻底解决了水冷屏与水冷壁连接 处的膨胀偏差问题， 避免了可能出现的水冷屏和水冷壁的相对位移， 防止了 耐磨耐火材料层脱落的可能； 该密封结构具有结构简单， 加工制造简^ , 工 地安装质量易于保证的优点。 附图说明
图 1为本发明的一种水冷屏穿过水冷壁的密封结构的结构示意图。
图 2为本发明的一种水冷屏穿过水冷壁的密封结构的 B-B方向的剖视图。 实现本发明的最佳方式
以下结合附图详细说明本发明的具体实施方式。
如图 1及图 2所示， 为本发明提供的一种水冷屏 20穿过水冷壁 10的密 封结构。
水冷壁 10 敷设在锅炉炉膛内壁， 作为锅炉的炉膛前墙， 所述的水冷壁 10包含若干成排铺设的水管（即水冷壁管 11 )，所述的水冷壁管 11之间通过 鳍片 12焊接成一个整体, 形成所述的水冷壁 10， 为板状结构。 水冷壁 10的 外部均敷设有耐磨耐火材料层 30。 水冷壁 10的作用是吸收炉膛中高温火焰 或烟气的辐射热量,在管内产生蒸汽或热水， 并降低炉墙温度， 保护炉墙。 所述的水冷屏 20包含若千穿过水冷壁管 11且平行设置的水冷屏管 21。 所述的每根水冷屏管 21在穿过水冷壁管 11的部位均悍接有套筒 22。带有套 筒 22的水冷屏管 21外均敷有耐磨耐火材料层 30。
安装时， 将带有套筒的水冷屏管 21穿过水冷壁管 11， 并将套筒 22与水 冷壁的鳍片 12悍接， 以固定， 实现水冷屏 20与水冷壁 10的密封， 由于套筒 22与水冷壁的鳍片 12之间以焊接的方式密封固定，故此处水冷屏 20与水冷 壁 10之间没有膨胀，从而避免了水冷屏 20与水冷壁 10之间在工作时可能产 生的相对位移。
' 本发明中套筒与水冷屏管之间以及套筒与水冷壁的鳍片之间均为密封焊 接， 将水冷屏与水冷壁的连接处的膨胀位移降低为零， 从而避免了水冷屏与 水冷壁之间可能产生的相对位移， 从而， 水冷屏和水冷壁外部的耐磨耐火材 料也就不易脱落了。
尽管本发明的内容已经通过上述优选实施例作了详细介绍， 但应当认识 到上述的描述不应被认为是对本发明的限制。 在本领域技术人员阅读了上述 内容后， 对于本发明的多种修改和替代都将是显而易见的。 因此， 本^:明的 保护范围应由所附的权利要求来限定。

Claims

权利要求
1.一种水冷屏穿过水冷壁的密封结构， 该密封结构位于水冷屏 （20) 穿过 水冷壁 （10) 的连接处， 所述的水冷壁 （10) 包含若干并排设置的水冷壁 管（11 ) 及连接各水冷壁管 （11 ) 的鳍片 （12)， 所述的水冷屏 （20) 包含 若干并排设置的水冷屏管（21 )， 其特征在于， 所述的水冷屏管 （21 )上均 固定设置有套筒（22)， 该套筒（22) 与水冷壁的鳍片 （12) 固定连接， 构 成水冷屏 （20) 穿过水冷壁 （10) 的密封结构。
2.如权利要求 1所述的水冷屏穿过水冷壁的密封结构， 其特征在于， 所述 的水冷壁（10) 为通过鳍片 （12)连接各水冷壁管 （11 ) 形成的板状结构。
3. 如权利要求 1所述的水冷屏穿过水冷壁的密封结构， 其特征在于， 所述 的套筒 （22) 与水冷屏管 （21 )之间以及套筒（22) 与水冷壁的鳍片 （12) 之间均通过焊接的方式密封固定。
4. 如权利要求 1所述的水冷屏穿过水冷壁的密封结构， 其特征在于， 所述 的带有套筒的水冷屏管 （21 ) 外部及所述的水冷壁 （10) 的外部均敷设有 耐磨耐火材料层 （30)。
PCT/CN2010/001908 2009-11-30 2010-11-29 一种水冷屏穿过水冷壁的密封结构 WO2011063613A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105937778A (zh) * 2016-06-08 2016-09-14 无锡华光锅炉股份有限公司 一种燃烧器支吊结构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201611110U (zh) * 2009-11-30 2010-10-20 上海锅炉厂有限公司 一种水冷屏穿炉膛前墙的密封结构
CN103411198B (zh) * 2013-08-29 2015-09-09 重庆重锅能源科技有限公司 带保护盒的双锅筒水火管锅炉
CN109434313B (zh) * 2018-10-26 2020-09-29 中国电建集团山东电力建设第一工程有限公司 塔式锅炉穿墙管施工方法
CN110566995B (zh) * 2019-09-19 2021-05-07 哈尔滨锅炉厂有限责任公司 一种用于垂直水冷壁喷口管屏的密封结构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06307601A (ja) * 1993-04-26 1994-11-01 Babcock Hitachi Kk ボイラ火炉水冷壁
JPH07167403A (ja) * 1993-12-14 1995-07-04 Mitsubishi Heavy Ind Ltd 炉壁装置
JPH07248195A (ja) * 1994-01-31 1995-09-26 Kurosaki Refract Co Ltd 水管壁構築方法
JPH09280509A (ja) * 1996-04-15 1997-10-31 Babcock Hitachi Kk ボイラ火炉の炉壁伝熱管貫通部のシール構造
CN201251879Y (zh) * 2008-09-03 2009-06-03 太原电力高等专科学校 部件可拆装的组合式燃煤电站锅炉本体模型
CN201611110U (zh) * 2009-11-30 2010-10-20 上海锅炉厂有限公司 一种水冷屏穿炉膛前墙的密封结构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06307601A (ja) * 1993-04-26 1994-11-01 Babcock Hitachi Kk ボイラ火炉水冷壁
JPH07167403A (ja) * 1993-12-14 1995-07-04 Mitsubishi Heavy Ind Ltd 炉壁装置
JPH07248195A (ja) * 1994-01-31 1995-09-26 Kurosaki Refract Co Ltd 水管壁構築方法
JPH09280509A (ja) * 1996-04-15 1997-10-31 Babcock Hitachi Kk ボイラ火炉の炉壁伝熱管貫通部のシール構造
CN201251879Y (zh) * 2008-09-03 2009-06-03 太原电力高等专科学校 部件可拆装的组合式燃煤电站锅炉本体模型
CN201611110U (zh) * 2009-11-30 2010-10-20 上海锅炉厂有限公司 一种水冷屏穿炉膛前墙的密封结构

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105937778A (zh) * 2016-06-08 2016-09-14 无锡华光锅炉股份有限公司 一种燃烧器支吊结构

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