CN105387442A - Expansion joint sealing device of boiler ceiling - Google Patents
Expansion joint sealing device of boiler ceiling Download PDFInfo
- Publication number
- CN105387442A CN105387442A CN201510974884.5A CN201510974884A CN105387442A CN 105387442 A CN105387442 A CN 105387442A CN 201510974884 A CN201510974884 A CN 201510974884A CN 105387442 A CN105387442 A CN 105387442A
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- CN
- China
- Prior art keywords
- ceiling
- sealing device
- backplate
- expansion
- comb
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- 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.)
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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
- F22B37/10—Water tubes; Accessories therefor
- F22B37/105—Penetrations of tubes through a wall and their sealing
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The invention relates to an expansion joint sealing device of a boiler ceiling. Conventional steel plate sealing cannot realize free expansion between components, and the components are easily pull-cracked. The expansion joint sealing device consists of ceiling pipes (13), guard plates(10), comb-shaped plates (4), ripple expansion joints (1), circular expansion joints (12), pressing plates (2) and ceramic fiber paper (3). Connection forms comprise that a ceiling membrane type wall, peripheral membrane type walls, and pipelines (9) and hanging rods (8), which penetrate through a furnace roof are connected with the guard plates, wherein the ceiling membrane type wall, and the peripheral membrane type walls are connected with the guard plates in the manner that the comb-shaped plates are welded to the ceiling pipes and a water-cooled wall (7), the ripple expansion joints are additionally arranged between the guard plates and the comb-shaped plates, and the ceramic fiber paper is padded between the comb-shaped plates and the ripple expansion joints; the ripple expansion joints and the guard plates are in welding connection. The expansion joint sealing device disclosed by the invention is applied to the expansion joint sealing device of the boiler ceiling.
Description
technical field:
the present invention relates to hermetically-sealed construction between pipeline that a kind of large coal powder boiler ceiling membrane wall, surrounding membrane wall and furnace roof pass, suspension rod, particularly relate to a kind of boiler ceiling expansion joint sealing device.
background technology:
the burner hearth of large coal powder boiler and flue are all-sealed structures, but arrange at ceiling place and surrounding
membrane wall, pass the heating surface of roof tube and the sealing of suspension rod, pipeline etc., if only seal the free wxpansion that cannot realize between each parts with steel plate, be easy to drawing crack, affect heating surface safe operation, current domestic station boiler herein hermetically-sealed construction all adopts steel plate to seal or bolt connection sealing, in the easy drawing crack in steel plate bight.
summary of the invention:
the object of this invention is to provide a kind of boiler ceiling expansion joint sealing device.
above-mentioned object is realized by following technical scheme:
a kind of boiler ceiling expansion joint sealing device, its composition comprises: roof tube, backplate, comb plate, comb joint, expansion bellow, circular expander saves, pressing plate and ceramic fiber paper, type of attachment is divided into ceiling membrane wall, surrounding membrane wall, the pipeline that furnace roof passes and being connected between suspension rod and described backplate, it is be welded on described roof tube and water-cooling wall by described comb plate, comb joint that described ceiling membrane wall and surrounding membrane wall are connected with described backplate, described expansion bellow is added between described backplate and described combed plate, described ceramic fiber paper is padded between described combed plate and described expansion bellow, soldered connecing between described expansion bellow and described backplate.
described boiler ceiling expansion joint sealing device, described ceiling membrane wall is connected with described backplate with surrounding membrane wall, is to be welded to connect adopting between ceiling metal inner casing coated to header, pipe joint.
described boiler ceiling expansion joint sealing device, the pipeline that described furnace roof passes connects the mode adopting and install described circular expander joint additional, by pipeline through described circular expander joint, and described circular expander is saved one end be welded on backplate, the other end is welded in giving on weldment of pipeline.
described boiler ceiling expansion joint sealing device, the suspension rod that described furnace roof passes connects the mode also adopting and install described circular expander joint additional, by described suspension rod through described circular expander joint, and described circular expander is saved one end and be welded on described backplate, the other end is welded in described the giving on weldment of described suspension rod.
described boiler ceiling expansion joint sealing device, adopts screw bolt and nut to be connected between described comb plate, comb joint and described pressing plate, is connected to again described backplate while that described screw bolt and nut connecting,
described boiler ceiling expansion joint sealing device, described backplate has T-steel plate framework.
beneficial effect of the present invention:
1. boiler ceiling expansion joint sealing device of the present invention, structure is simple, is convenient to workshop processing and site operation; Solve membrane wall that large coal powder boiler ceiling place and surrounding arrange simultaneously, pass the heating surface of roof tube and the sealing problem of suspension rod, pipeline etc.
boiler ceiling expansion joint sealing device of the present invention, adopts expansion bellow and steel plate expansion joint to absorb the differential expansion of different heating surface, pipeline, suspension rod, can adopt welded seal form under the prerequisite not affecting expansion.
boiler ceiling expansion joint sealing device of the present invention, be welded between combed plate on heating surface and backplate and add expansion bellow, expansion bellow and combed plate junction bolt fastening structure, ceramic fiber paper is padded between combed plate and expansion bellow, be welded to connect between expansion joint and backplate, adding a circle expansion joint between heating surface and backplate makes the swollen difference of backplate and ceiling and water-cooling wall effectively absorb, by header, adopt between the ceiling metal inner casing that pipe joint is coated and be welded to connect, through the suspension rod of backplate, pipeline installs expansion joint additional, expansion joint and pipeline, suspension rod adopts and is welded to connect, sealing effectiveness is fine, and do not affect heating surface security of operation.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present invention.
accompanying drawing 2 is bolted structural representations that the present invention adopts.
accompanying drawing 3 is that the suspension rod that the present invention adopts wears backplate place structural representation.
accompanying drawing 4 is that backplate place structural representation worn by the pipeline that the present invention adopts.
detailed description of the invention:
embodiment 1:
a kind of boiler ceiling expansion joint sealing device, its composition comprises: roof tube 13, backplate 10, comb plate, comb joint 4, expansion bellow 1, circular expander joint 12, pressing plate 2 and ceramic fiber paper 3, type of attachment is divided into ceiling membrane wall, surrounding membrane wall, the pipeline 9 that furnace roof passes and being connected between suspension rod 8 and described backplate, it is be welded on by described comb plate, comb joint on described roof tube and water-cooling wall 7 that described ceiling membrane wall and surrounding membrane wall are connected with described backplate, described expansion bellow is added between described backplate and described combed plate, described ceramic fiber paper is padded between described combed plate and described expansion bellow, soldered connecing between described expansion bellow and described backplate.
embodiment 2:
boiler ceiling expansion joint sealing device according to embodiment 1, described ceiling membrane wall is connected with described backplate with surrounding membrane wall, is to be welded to connect adopting between ceiling metal inner casing coated to header, pipe joint.
embodiment 3:
boiler ceiling expansion joint sealing device according to embodiment 1 or 2, the pipeline that described furnace roof passes connects the mode adopting and install described circular expander joint additional, by pipeline through described circular expander joint, and described circular expander is saved one end be welded on backplate, the other end is welded in giving on weldment of pipeline.
embodiment 4:
boiler ceiling expansion joint sealing device according to embodiment 1 or 2, the suspension rod that described furnace roof passes connects the mode also adopting and install described circular expander joint additional, by described suspension rod through described circular expander joint, and described circular expander is saved one end and be welded on described backplate, the other end is welded in described the giving on weldment of described suspension rod.
embodiment 2:
boiler ceiling expansion joint sealing device according to embodiment 1 or 2, adopts bolt 5 and nut 6 to be connected between described comb plate, comb joint and described pressing plate, be connected to again described backplate while that described screw bolt and nut connecting.
embodiment 6:
boiler ceiling expansion joint sealing device according to embodiment 1 or 2, described backplate has T-steel plate framework 11.
Claims (5)
1. a boiler ceiling expansion joint sealing device, its composition comprises: roof tube, backplate, comb plate, comb joint, expansion bellow, circular expander saves, pressing plate and ceramic fiber paper, it is characterized in that: type of attachment is divided into ceiling membrane wall, surrounding membrane wall, the pipeline that furnace roof passes and being connected between suspension rod and described backplate, it is be welded on described roof tube and water-cooling wall by described comb plate, comb joint that described ceiling membrane wall and surrounding membrane wall are connected with described backplate, described expansion bellow is added between described backplate and described combed plate, described ceramic fiber paper is padded between described combed plate and described expansion bellow, soldered connecing between described expansion bellow and described backplate.
2. boiler ceiling expansion joint sealing device according to claim 1, is characterized in that: described ceiling membrane wall is connected with described backplate with surrounding membrane wall, is to be welded to connect adopting between ceiling metal inner casing coated to header, pipe joint.
3. boiler ceiling expansion joint sealing device according to claim 1 and 2, it is characterized in that: the pipeline that described furnace roof passes connects the mode adopting and install described circular expander joint additional, by pipeline through described circular expander joint, and described circular expander is saved one end be welded on backplate, the other end is welded in giving on weldment of pipeline.
4. boiler ceiling expansion joint sealing device according to claim 1 and 2, it is characterized in that: the suspension rod that described furnace roof passes connects the mode also adopting and install described circular expander joint additional, by described suspension rod through described circular expander joint, and described circular expander is saved one end and be welded on described backplate, the other end is welded in described the giving on weldment of described suspension rod.
5. boiler ceiling expansion joint sealing device according to claim 1 and 2, it is characterized in that: between described comb plate, comb joint and described pressing plate, adopt screw bolt and nut to be connected, described screw bolt and nut is connected to again described backplate while of connection. and boiler ceiling expansion joint sealing device according to claim 1 and 2, is characterized in that: described backplate has T-steel plate framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974884.5A CN105387442B (en) | 2015-12-23 | 2015-12-23 | Boiler penthouse expansion joint sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974884.5A CN105387442B (en) | 2015-12-23 | 2015-12-23 | Boiler penthouse expansion joint sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105387442A true CN105387442A (en) | 2016-03-09 |
| CN105387442B CN105387442B (en) | 2018-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510974884.5A Active CN105387442B (en) | 2015-12-23 | 2015-12-23 | Boiler penthouse expansion joint sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105387442B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016233A (en) * | 2016-06-20 | 2016-10-12 | 中国十五冶金建设集团有限公司 | Boiler roof with long span and fewer welding spots and hoisting method for boiler roof |
| CN109869738A (en) * | 2019-02-28 | 2019-06-11 | 大唐华银电力股份有限公司金竹山火力发电分公司 | A kind of anti-expansion drawing crack administering method of boiler |
| CN110566931A (en) * | 2019-09-24 | 2019-12-13 | 西安热工研究院有限公司 | ceiling penetrating structure for preventing and treating cracking of boiler pipe ceiling penetrating sealing part and transformation method |
| CN113418058A (en) * | 2021-06-29 | 2021-09-21 | 无锡华光环保能源集团股份有限公司 | Sealing structure of protective plate penetrating pipeline of gas turbine waste heat boiler |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869737B (en) * | 2019-02-28 | 2019-12-31 | 大唐华银电力股份有限公司金竹山火力发电分公司 | Prevent "W" flame boiler system that inflation is drawn and is split |
Citations (4)
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| JPH10259902A (en) * | 1997-03-18 | 1998-09-29 | Babcock Hitachi Kk | Sealing structure for penetrated part of boiler ceiling wall |
| CN201903040U (en) * | 2010-12-22 | 2011-07-20 | 夏正 | External welded junction-type pyrite waste heat boiler |
| CN202442327U (en) * | 2011-12-27 | 2012-09-19 | 哈尔滨锅炉厂有限责任公司 | Boiler top sealing device for circulating fluidized bed (CFB) boiler |
| CN205299468U (en) * | 2015-12-23 | 2016-06-08 | 哈尔滨锅炉厂有限责任公司 | Boiler top canopy expansion joint sealing device |
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2015
- 2015-12-23 CN CN201510974884.5A patent/CN105387442B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10259902A (en) * | 1997-03-18 | 1998-09-29 | Babcock Hitachi Kk | Sealing structure for penetrated part of boiler ceiling wall |
| CN201903040U (en) * | 2010-12-22 | 2011-07-20 | 夏正 | External welded junction-type pyrite waste heat boiler |
| CN202442327U (en) * | 2011-12-27 | 2012-09-19 | 哈尔滨锅炉厂有限责任公司 | Boiler top sealing device for circulating fluidized bed (CFB) boiler |
| CN205299468U (en) * | 2015-12-23 | 2016-06-08 | 哈尔滨锅炉厂有限责任公司 | Boiler top canopy expansion joint sealing device |
Non-Patent Citations (2)
| Title |
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| 樊淑杰: "超超临界顶棚内护板的结构特点", 《锅炉制造》 * |
| 黄志坚: "《工业设备密封及泄漏防治》", 31 March 2015 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016233A (en) * | 2016-06-20 | 2016-10-12 | 中国十五冶金建设集团有限公司 | Boiler roof with long span and fewer welding spots and hoisting method for boiler roof |
| CN109869738A (en) * | 2019-02-28 | 2019-06-11 | 大唐华银电力股份有限公司金竹山火力发电分公司 | A kind of anti-expansion drawing crack administering method of boiler |
| CN110566931A (en) * | 2019-09-24 | 2019-12-13 | 西安热工研究院有限公司 | ceiling penetrating structure for preventing and treating cracking of boiler pipe ceiling penetrating sealing part and transformation method |
| CN113418058A (en) * | 2021-06-29 | 2021-09-21 | 无锡华光环保能源集团股份有限公司 | Sealing structure of protective plate penetrating pipeline of gas turbine waste heat boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105387442B (en) | 2018-02-13 |
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