CN205014347U - Novel circulating fluidized bed boiler abrasionproof fin - Google Patents
Novel circulating fluidized bed boiler abrasionproof fin Download PDFInfo
- Publication number
- CN205014347U CN205014347U CN201520515269.3U CN201520515269U CN205014347U CN 205014347 U CN205014347 U CN 205014347U CN 201520515269 U CN201520515269 U CN 201520515269U CN 205014347 U CN205014347 U CN 205014347U
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- CN
- China
- Prior art keywords
- water
- bed boiler
- fluidized bed
- circulating fluidized
- cooling wall
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a novel circulating fluidized bed boiler abrasionproof fin belongs to circulating fluidized bed boiler technical field, the technical problem that will solve can effectively alleviate the boiler water wall surface because the downward wearing and tearing that flow back and cause of solid particle promote the improved generation circulating fluidized bed boiler water wall abrasionproof fin that boiler water wall managed the heat absorption capacity simultaneously for providing one kind, the problem of the technique is solved the technical scheme who adopts does: a novel circulating fluidized bed boiler abrasionproof fin, is dull and stereotyped including the connection of welding between adjacent water -cooling wall pipe, and the vertical perpendicular reposition of redundant personnel baffle that sets up in dull and stereotyped surface is connected to water -cooling wall heating surface of tubes side, and reposition of redundant personnel height of sidewall matches with water -cooling wall pipeline radius, generally sets up two reposition of redundant personnel baffles between the adjacent water -cooling wall pipe, is provided with the water conservancy diversion piece on connecting the flat board, the utility model discloses the wearing and tearing that the water -cooling wall surface received can be effectively alleviateed, boiler water wall pipe heat absorption capacity is promoted simultaneously.
Description
Technical field
The utility model relates to a kind of circulating fluid bed boiler abrasionproof fin, belongs to Sector of Cfb Boilers.
Background technology
Along with CFBB is in the application of China and universal, waterwall tube cracking is the problem that CFBB brainstrust makes every effort to solve always.The wearing and tearing of water screen tube can be divided into following four kinds of situations: the wearing and tearing of lower furnace portion wall with refractory lining, refracto and water screen tube transitional region tube wall, the transducer wall ' s abrasion of burner hearth four corner regions, the general wearing and tearing of water-cooling wall, the wearing and tearing of irregular area tube wall.The water-cooling wall of recirculating fluidized bed is the important heating surface of boiler, and single water screen tube is welded into pipe row by current vertical water wall band steel, is referred to as fin panel casing or fin type water-cooling wall.Operationally, boiler water-cooling wall surface has solid particle and refluxes downwards CFBB, due to the quick severe friction that direct solid particle impingement and whirlpool are formed, makes water-cooling wall produce wearing and tearing.The worn down problem of water wall surface is very serious, due to the safe operation of the pipe explosion accident serious threat CFBB caused that weares and teares, also shortens the cycle of operation of recirculating fluidized bed, increases operation and maintenance cost.
Summary of the invention
The purpose of this utility model is, carries out improvement and bring new ideas to existing circulating fluidized bed boiler water-cooling wall fin, the wearing and tearing that the material that effectively can alleviate adherent backflow causes water-cooling wall, promotes boiler water-wall tube heat absorption capacity simultaneously.
The purpose of this utility model is realized by following technical scheme, a kind of circulating fluid bed boiler abrasionproof fin, comprise the connection be welded between adjacent water screen tube dull and stereotyped, water screen tube heating surface side connects planar surface longitudinally vertically disposed distributing damper, distributing damper height is suitable with water-cooling wall pipe radius, two distributing dampers are generally set between adjacent water screen tube, connection flat board is also provided with flow deflector with horizontal plane angle 30 ° ~ 40 °.
The beneficial effects of the utility model are, between adjacent water screen tube, the cross section of fin is ∏ shape, when encountering fin along the dull and stereotyped downward solid particle of connection in stove, adherent solids flow rate slows down, and the thickness of the adherent material flow of water screen tube surface and adjacent tube wall groove also changes, the erosive wear that therefore vertical water-wall tube receives reduces; This method also suitably adds the heat absorption capacity of boiler water wall; Flow deflector in the utility model effectively can slow down the speed along the material flow of wall flowing and change its direction, uses the utility model, can effectively reduce the wearing and tearing to water-cooling wall at vertical direction with a determining deviation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is water-cooling wall cross sectional representation of the present utility model.
Fig. 2 is that using state of the present utility model is with reference to figure 1.
Fig. 3 is the left view of Fig. 2.
In figure: 1. water screen tube, 2. fin connects dull and stereotyped, 3. distributing damper, 4. deflector.
Detailed description of the invention
As shown in Figure 1, a kind of circulating fluid bed boiler abrasionproof fin described in the utility model, comprise the connection flat board (2) be welded between adjacent water-cooling wall pipeline (1), be vertically installed with two distributing dampers (3) at connection flat board (2) surface longitudinal of described water-cooling wall pipeline (1) heating surface side, also horizontal plane angle 30 ° ~ 40 ° be provided with deflector (4) on dull and stereotyped (2) surface of connection.
As shown in Figures 2 and 3, a kind of circulating fluid bed boiler abrasionproof fin deflector described in the utility model is an inclined-plane, and the angle of this inclined-plane and horizontal plane is between 30 ° ~ 40 °.
Claims (2)
1. a circulating fluid bed boiler abrasionproof fin, comprise the connection flat board (2) be welded between adjacent water screen tube, water screen tube heating surface side connects dull and stereotyped (2), the vertically disposed distributing damper of surface longitudinal (3), connects dull and stereotyped (2) surface and also horizontal plane angle 30 ° ~ 40 ° is provided with deflector (4).
2. a kind of circulating fluid bed boiler abrasionproof fin according to claim 1, is characterized in that circulating fluidized bed boiler water-cooling wall fin deflector (4) is an inclined-plane, and the angle of it and plane is between 30 ° ~ 40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520515269.3U CN205014347U (en) | 2015-07-16 | 2015-07-16 | Novel circulating fluidized bed boiler abrasionproof fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520515269.3U CN205014347U (en) | 2015-07-16 | 2015-07-16 | Novel circulating fluidized bed boiler abrasionproof fin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205014347U true CN205014347U (en) | 2016-02-03 |
Family
ID=55212947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520515269.3U Expired - Fee Related CN205014347U (en) | 2015-07-16 | 2015-07-16 | Novel circulating fluidized bed boiler abrasionproof fin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205014347U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737132A (en) * | 2016-03-01 | 2016-07-06 | 重庆大学 | Device used for reducing deformation of membrane type water-cooled wall pipes of supercritical circulating fluidized bed boiler |
| CN109028045A (en) * | 2018-06-12 | 2018-12-18 | 中蓝长化工程科技有限公司 | The anti-high sodium coal combustion of one kind stains circulating fluidized bed boiler and releasing pollution discharge treatment method |
| CN106152116B (en) * | 2016-08-05 | 2019-11-22 | 华电电力科学研究院 | A kind of wear-resistance circulation fluidized bed boiler combustion chamber water-cooling wall |
-
2015
- 2015-07-16 CN CN201520515269.3U patent/CN205014347U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737132A (en) * | 2016-03-01 | 2016-07-06 | 重庆大学 | Device used for reducing deformation of membrane type water-cooled wall pipes of supercritical circulating fluidized bed boiler |
| CN105737132B (en) * | 2016-03-01 | 2017-11-10 | 重庆大学 | A kind of device for reducing the deformation of supercritical circulating fluidized bed boiler monowall tube |
| CN106152116B (en) * | 2016-08-05 | 2019-11-22 | 华电电力科学研究院 | A kind of wear-resistance circulation fluidized bed boiler combustion chamber water-cooling wall |
| CN109028045A (en) * | 2018-06-12 | 2018-12-18 | 中蓝长化工程科技有限公司 | The anti-high sodium coal combustion of one kind stains circulating fluidized bed boiler and releasing pollution discharge treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20160716 |