CN204420996U - A kind of bell-jar wind cap - Google Patents
A kind of bell-jar wind cap Download PDFInfo
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- CN204420996U CN204420996U CN201520045867.9U CN201520045867U CN204420996U CN 204420996 U CN204420996 U CN 204420996U CN 201520045867 U CN201520045867 U CN 201520045867U CN 204420996 U CN204420996 U CN 204420996U
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- outer cover
- bell
- interior pipe
- wind cap
- jar
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Abstract
A kind of bell-jar wind cap, pipe and be arranged on the outer cover of interior pipe upper end in bag, it is characterized in that, some apertures are opened in the upper end of described interior pipe, described outer cover side be provided with three be tilted under outlet opening.Enter blast cap by air-flow from air compartment by the aperture of interior pipe and upper end thereof, then enter bed surface by the outlet opening of outer cover lower end and realize cloth wind.The utility model can be used for the cloth wind system of all kinds of CFBB and bubbling bed boiler, can realize directed cloth wind, and cloth wind is unobstructed, there will not be jam and overheated burnout phenomenon, effectively prevents material from scurrying into air compartment, and the abrasion of particles that jet produces is little.
Description
Technical field
The utility model relates to a kind of bell-jar wind cap, can be used for the cloth wind system of all kinds of CFBB and bubbling bed boiler, is particularly useful for air distribution plate gradient comparatively large or need to adopt the occasion of directed cloth wind.
Background technology
Along with the development of fluidized-bed combustion boiler technology, there is various air distributor structure with specific function, the blast cap form used is varied, such as biomass fuel circulating fluidized bed boiler, in order to the end slag containing affect fluidized state compared with ratchel etc. can be discharged, gradient is adopted (downward-slopingly to reach 40 very greatly
oduring above) air distribution plate, just need the wind cap adopting the directed cloth wind of energy, but traditional wind cap can not effectively completely cut off the refluence of solid particle to air compartment, and perforate cross section, exit is little, flow velocity is high, the abrasion of particles that jet-stream wind is formed is serious, have a strong impact on the normal fluidisation of material in stove, reduce the availability of boiler.
Summary of the invention
The purpose of this utility model is to provide a kind of wind cap that may be used for the cloth wind system of the fluidized-bed combustion boiler needing directed cloth wind, it can realize directed cloth wind, and cloth wind is unobstructed, there will not be jam and overheated burnout phenomenon, effectively prevent material from scurrying into air compartment; Outer cover perforate is large, flow velocity is low, can reduce the wearing and tearing of jet to blast cap, the availability of extension device and service life, have higher economy.
The utility model is achieved like this, a kind of bell-jar wind cap, pipe and be arranged on the outer cover of interior pipe upper end in bag, it is characterized in that, some apertures are opened in the upper end of described interior pipe, described outer cover side be provided with three be tilted under outlet opening.Enter blast cap by air-flow from air compartment by the aperture of interior pipe and upper end thereof, then enter bed surface by the outlet opening of outer cover lower end and realize cloth wind.
Described aperture is evenly arranged interior pipe upper end surrounding, and along the axial arranged in rows of interior pipe, hole diameter is at 5-8mm, and quantity is determined according to air quantity, fluidizing velocity, percent opening, aperture Peak Flow Rate etc.
Described outlet opening downward-sloping 15
o, the particle scurried into can be discharged in time, not easily blocks, and outer cover adopts casting heat resistant steel, and outer cover thickness is not less than 10mm, outer cover internal diameter 20mm more than larger than interior pipe external diameter.
Technique effect of the present invention is: the cloth wind system that can be used for all kinds of CFBB and bubbling bed boiler, directed cloth wind can be realized, and cloth wind is unobstructed, there will not be jam and overheated burnout phenomenon, effectively prevent material from scurrying into air compartment, the abrasion of particles that jet produces is little, the long service life of blast cap, simultaneously structure simple, be easy to processing and manufacturing, have higher economy.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is outer cover top view of the present utility model;
In figure: 1. pipe in; 2. outer cover; 11. apertures; 21. outlet openings.
Detailed description of the invention
As shown in Figure 1, 2, a kind of bell-jar wind cap, pipe 1 and be arranged on the outer cover 2 of interior pipe upper end in bag, the upper end surrounding of described interior pipe 1 is axially evenly arranged many row's apertures 11 along interior pipe, described outer cover 2 side be provided with three be tilted under outlet opening 21.Allow air-flow enter blast cap from air compartment by the aperture 11 of interior pipe 1 and upper end thereof, then enter bed surface by the outlet opening 21 of outer cover lower end and realize cloth wind.By controlling quantity and the pore size of interior pipe 1 upper end aperture, make blast cap have rational drag characteristic, outlet opening 21 makes air-flow penetrate towards a side positioning, and the aperture of outlet opening 21 is comparatively large, wind speed is low, can reduce the wearing and tearing of blast cap and not easily be prematured by solids, described interior pipe 1 and outer cover 2 are welded to connect.
The diameter of described aperture 11 is at 5-8mm, and quantity is determined according to air quantity, fluidizing velocity, percent opening, aperture Peak Flow Rate etc.
Described outlet opening 21 downward-sloping 15
o, the particle scurried into can be discharged in time, not easily blocks, and outer cover 2 adopts casting heat resistant steel, and outer cover 2 thickness is not less than 10mm, outer cover 2 internal diameter 20mm more than larger than interior pipe 1 external diameter.
The utility model by bell-jar wind cap, efficiently solve bed material particle when fluidized-bed combustion boiler adopts traditional wind cap flow backwards serious, outgoing air-flow is very large to the abrasion of particles of blast cap, easily jam, blast cap such as to be easily burned at the problem; Overcome traditional wind cap short for service life, cause the shortcoming that the availability of equipment is low; Simultaneously the cap structure that relates to of this patent simple, be easy to processing and manufacturing, economy and durability.
Claims (6)
1. a bell-jar wind cap, pipe and be arranged on the outer cover of interior pipe upper end in bag, it is characterized in that, some apertures are opened in the upper end of described interior pipe, described outer cover side be provided with three be tilted under outlet opening.
2. bell-jar wind cap according to claim 1, is characterized in that described aperture is evenly arranged interior pipe upper end surrounding, along the axial arranged in rows of interior pipe.
3. bell-jar wind cap according to claim 2, is characterized in that the diameter of described aperture is at 5-8mm.
4. bell-jar wind cap according to claim 1, is characterized in that, described outlet opening downward-sloping 15
o.
5. bell-jar wind cap according to claim 1, is characterized in that, outer cover adopts casting heat resistant steel, and outer cover thickness is not less than 10mm.
6. bell-jar wind cap according to claim 1, is characterized in that, outer cover internal diameter 20mm more than larger than interior pipe external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520045867.9U CN204420996U (en) | 2015-01-23 | 2015-01-23 | A kind of bell-jar wind cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520045867.9U CN204420996U (en) | 2015-01-23 | 2015-01-23 | A kind of bell-jar wind cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204420996U true CN204420996U (en) | 2015-06-24 |
Family
ID=53471362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520045867.9U Active CN204420996U (en) | 2015-01-23 | 2015-01-23 | A kind of bell-jar wind cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204420996U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090942A (en) * | 2015-08-19 | 2015-11-25 | 河南科技大学 | Micro orientation wind cap device |
-
2015
- 2015-01-23 CN CN201520045867.9U patent/CN204420996U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090942A (en) * | 2015-08-19 | 2015-11-25 | 河南科技大学 | Micro orientation wind cap device |
| CN105090942B (en) * | 2015-08-19 | 2018-06-12 | 河南科技大学 | A kind of micro- wind cap device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 330000 Nanchang national high tech Industrial Development Zone, Jiangxi torch street, No. 125 Patentee after: Jiang Lian heavy industry group Limited by Share Ltd Address before: 330000 Nanchang national high tech Industrial Development Zone, Jiangxi torch street, No. 125 Patentee before: Jianglian Heavy Industry Co., Ltd. |