CN202082918U - Flow diffusing cone for pulverized coal boiler burner - Google Patents
Flow diffusing cone for pulverized coal boiler burner Download PDFInfo
- Publication number
- CN202082918U CN202082918U CN201120178158XU CN201120178158U CN202082918U CN 202082918 U CN202082918 U CN 202082918U CN 201120178158X U CN201120178158X U CN 201120178158XU CN 201120178158 U CN201120178158 U CN 201120178158U CN 202082918 U CN202082918 U CN 202082918U
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- CN
- China
- Prior art keywords
- cone
- flow cone
- flow
- pulverized coal
- boiler burner
- 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 provides a flow diffusing cone for a pulverized coal boiler burner, wherein at least a hole is arranged on the flow diffusing cone; the shape of each hole is a round platform body, a cylinder, a cube, a cuboid, a triangle body or an ellipsoid. The scheme is simple and easy to carry out, and can solve the problem that the combustor works can not work normally as the flow diffusing cone is liable to burn out and be bonded with slag by the pulverized coal, thereby reducing the maintenance cost of the pulverized coal boiler.
Description
Technical field
The utility model relates to a kind of coal powder fired boiler burner and expands flow cone.
Background technology
China is important in the world coal producer, coal utilization still occupies larger specific gravity in China's energy resource structure, be accompanied by industrial and agricultural production, adopt pulverized-coal fired boiler still comparatively general in productive life as heat source, burner is installed in the pulverized-coal fired boiler, wind exit of coal-burning boiler burner generally is equipped with taper and is expanded flow cone, help catching fire of breeze airflow though expand the recirculating zone of flow cone tail, but be in recirculating zone, high temperature center owing to expand flow cone, thereby expand the normal easy burn-out of flow cone and caused the burner cisco unity malfunction by the coal dust slagging scorification, increased the cost of safeguarding pulverized-coal fired boiler, relevant expansion flow cone is referring to teaching material " boiler of power plant principle and equipment " (third edition), and Ye Jiangming edits, China Electric Power Publishing House, the 99th page, Fig. 5-9.
Summary of the invention
In order to overcome the deficiency that existing coal powder fired boiler burner expands flow cone, the utility model provides a kind of simple technical scheme, existing coal powder fired boiler burner is expanded flow cone make improvement, and the technical scheme that is adopted is:
At least be provided with a hole expanding on the flow cone, described hole be shaped as cone cylinder body shape or the cylinder bodily form or the square bodily form or cuboid or the triangle bodily form or oval shape.Being provided with the cone cylinder body shape hole with the expansion flow cone is example, expands flow cone and is connected on the expansion flow cone round bar, when air-flow enters the airduct road one time, through expanding the formation gas leakage of flow cone cone cylinder body shape hole, forms gas blanket at expansion flow cone leeward side, plays heat-blocking action.Utilize the coal dust heat absorption in the air-flow, reduce the radiation heat absorption of expanding flow cone, prevent that thus expanding flow cone burns out.On the other hand, expand on the flow cone and establish the hole, change the single pattern that expands flow cone of washing away of original air-flow, avoid coal dust that the hole is blocked and high temperature reflux directly washes away and expands flow cone and cause in the problem that expands slagging scorification on the flow cone.
The beneficial effects of the utility model are, this programme is simple, can solve to expand the normal easy burn-out of flow cone and caused the problem of burner cisco unity malfunction by the coal dust slagging scorification, have reduced the maintenance cost of pulverized-coal fired boiler.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the design's structure cutaway view.
In the drawings, 1. an airduct road 2. expands the flow cone round bar, 3. expands flow cone, 4. hole.
The specific embodiment
Be provided with two cone cylinder body shape holes as embodiment to expand flow cone.
In Fig. 1, expanding flow cone 3 is connected on the expansion flow cone round bar 2, expanding interpolation cone cylinder body shape hole 4 on the flow cone 3, when air-flow enters airduct road 1 one time,, form a gas blanket at expansion flow cone 3 leeward sides through expanding cone cylinder body shape hole 4 formation gas leakage on the flow cone 3, play heat-blocking action, utilize the coal dust heat absorption in the air-flow, reduce the radiation heat absorption of expanding flow cone 3, prevent to expand flow cone 3 thus and burn out.On the other hand, adopt cone cylinder body shape hole 4 structures, change the single pattern that expands flow cone 3 of washing away of original air-flow, avoid coal dust that hole 4 is blocked and high temperature reflux directly washes away and expands flow cone 3 and cause in the problem that expands slagging scorification on the flow cone 3.
Claims (2)
1. a coal powder fired boiler burner expands flow cone, it is characterized in that, is provided with a hole at least on the expansion flow cone.
2. coal powder fired boiler burner according to claim 1 expands flow cone, it is characterized in that, described hole be shaped as cone cylinder body shape or the cylinder bodily form or the square bodily form or cuboid or the triangle bodily form or oval shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120178158XU CN202082918U (en) | 2011-05-31 | 2011-05-31 | Flow diffusing cone for pulverized coal boiler burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120178158XU CN202082918U (en) | 2011-05-31 | 2011-05-31 | Flow diffusing cone for pulverized coal boiler burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202082918U true CN202082918U (en) | 2011-12-21 |
Family
ID=45343545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120178158XU Expired - Fee Related CN202082918U (en) | 2011-05-31 | 2011-05-31 | Flow diffusing cone for pulverized coal boiler burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202082918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697468A (en) * | 2014-01-14 | 2014-04-02 | 北京大邦实创节能技术服务有限公司 | Burner with easy ignition and stable burning |
-
2011
- 2011-05-31 CN CN201120178158XU patent/CN202082918U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697468A (en) * | 2014-01-14 | 2014-04-02 | 北京大邦实创节能技术服务有限公司 | Burner with easy ignition and stable burning |
| CN103697468B (en) * | 2014-01-14 | 2016-06-01 | 北京大邦实创节能技术服务有限公司 | One is easy to igniting and combustion stablized burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20130531 |