CN203671591U - Combustion chamber of fluidized bed boiler - Google Patents
Combustion chamber of fluidized bed boiler Download PDFInfo
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- CN203671591U CN203671591U CN201320839956.1U CN201320839956U CN203671591U CN 203671591 U CN203671591 U CN 203671591U CN 201320839956 U CN201320839956 U CN 201320839956U CN 203671591 U CN203671591 U CN 203671591U
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- combustion chamber
- air
- fluidized
- chamber
- combustion
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Abstract
The utility model discloses a combustion chamber of a fluidized bed boiler which comprises a primary blower (1), a secondary blower (2) and a combustion chamber (10), wherein the primary blower (1) is connected with the upper end of the combustion chamber (10) through a pipeline; a recirculation separator (13) is arranged at the top of the combustion chamber (10); a smoke vent (9) and an evaporating pipe (8) are arranged at the top and the lower end of the recirculation separator (13) respectively; a plurality of air supply outlets (12) are formed in the lower part of the combustion chamber (10); the upper surfaces of the air supply outlets (12) are paved with a slag damming screen (11); a mixed air chamber (6), an air-splitting layer (5) and a primary air chamber (4) are sequentially arranged under the air supply outlets (12); the primary blower (1) is connected with one side of the primary air chamber (4) through the pipeline; a residue discharge opening (7) is formed in the outer wall at the lower part of the combustion chamber (10). The fluidized bed boiler combustion chamber is simple in structure, solid and durable.
Description
Technical field
The utility model relates to a kind of reaction unit, particularly a kind of fluidized-bed combustion boiler combustion chamber.
Background technology
The maximum feature of China's Energy Mix is taking coal as main, coal resources occupy 70% left and right in Chinese primary energy forms, predict 2050 and will occupy 50% left and right, and meeting produces a large amount of nitrogen oxide in coal burning process, nitrogen oxide is one of major pollutants that cause atmosphere pollution, and it,, except forming acid rain, destroys ecological environment, can also form photochemical fog, be detrimental to health.Visible China has caused the severe exacerbation of atmosphere quality taking coal as main consumption structure, use clean energy resource to stop the deterioration of the ecological environment, has become the subject matter of China's sustainable economic development.And existing boiler cannot reduce effectively to nitrogen oxide, environment is caused to very large impact.The clean combustion technology of the advantages such as recirculating fluidized bed (CFB) combustion technology is that to have fuel tolerance good, and efficiency is high, and pollutant emission is few.In recent years, the development of CFB boiler technology was rapid, constantly to large scale development.Along with large scale development, CFB boiler faces capacity increasing problem.
The increase of boiler capacity is mainly to realize by the increase of heating surface, but because the increase of the long-pending increase of boiler hearth heating surface and boiler capacity is not mated, cause CFBB in the process maximizing, to exist the very scabrous problem of layout of heating surface area, even or solved, brought again other a lot of problems.
Utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of simple in structure, durable CFBB.
The technical solution adopted in the utility model is such: comprise air blast 1 No. one time, post-blast machine 2 and combustion chamber 10, wherein an air blast 1 is connected with the upper end of combustion chamber 10 by pipeline, the top of combustion chamber 10 is provided with recirculation separator 13, top and the lower end of recirculation separator 13 are respectively equipped with outlet flue 9 and evaporation tube 8, the bottom of combustion chamber 10 is provided with several air outlets 12, air outlet 12 upper surfaces are equipped with one deck pushing off the slag net 11, air outlet 12 belows are provided with successively mixes air compartment 6, divide stratification of wind 5 and an air compartment 4, No. one time air blast 1 is connected with a side of an air compartment 4 by pipeline, the bottom outer wall of combustion chamber 10 is provided with slag notch 7.
Further, the inner side of described air outlet 12 is pyramid type cavity.
Further, between a described air blast 1 and an air compartment 4, be provided with burning starter 3.
Further, the exhaust outlet of described point stratification of wind 5 is circle or rhombus, and the degree of depth is 10cm ~ 15cm.
Further, the lower end of described evaporation tube 8 is near the upper surface of pushing off the slag net 11.
Further, the inner chamber of described combustion chamber 10 is cylinder or Elliptic Cylinder.
In sum, the beneficial effects of the utility model are: simple in structure, durable, cost is low, by the optimal design of point stratification of wind and air outlet; make coal ash mixture can become divided combustion in combustion chamber; improve the efficiency of combustion of fluidized bed combustion chamber, thereby save the energy, protection of the environment.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is schematic diagram of the present utility model.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, a kind of fluidized-bed combustion boiler combustion chamber, comprise air blast 1 No. one time, post-blast machine 2 and combustion chamber 10, wherein an air blast 1 is connected with the upper end of combustion chamber 10 by pipeline, the top of combustion chamber 10 is provided with recirculation separator 13, top and the lower end of recirculation separator 13 are respectively equipped with outlet flue 9 and evaporation tube 8, the bottom of combustion chamber 10 is provided with several air outlets 12, air outlet 12 upper surfaces are equipped with one deck pushing off the slag net 11, air outlet 12 belows are provided with successively mixes air compartment 6, divide stratification of wind 5 and an air compartment 4, No. one time air blast 1 is connected with a side of an air compartment 4 by pipeline, the bottom outer wall of combustion chamber 10 is provided with slag notch 7.
Further, the inner side of described air outlet 12 is pyramid type cavity.
Further, between a described air blast 1 and an air compartment 4, be provided with burning starter 3.
Further, the exhaust outlet of described point stratification of wind 5 is circle or rhombus, and the degree of depth is 10cm ~ 15cm.
Further, the lower end of described evaporation tube 8 is near the upper surface of pushing off the slag net 11.
Further, the inner chamber of described combustion chamber 10 is cylinder or Elliptic Cylinder.
Taking above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this utility model technological thought, carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on description, must determine its technical scope according to claim scope.
Claims (6)
1. a fluidized-bed combustion boiler combustion chamber, comprise an air blast (1), post-blast machine (2) and combustion chamber (10), it is characterized in that: an air blast (1) is connected with the upper end of combustion chamber (10) by pipeline, the top of combustion chamber (10) is provided with recirculation separator (13), top and the lower end of recirculation separator (13) are respectively equipped with outlet flue (9) and evaporation tube (8), the bottom of combustion chamber (10) is provided with several air outlets (12), air outlet (12) upper surface is equipped with one deck pushing off the slag net (11), air outlet (12) below is provided with successively mixes air compartment (6), divide stratification of wind (5) and an air compartment (4), an air blast (1) is connected with a side of an air compartment (4) by pipeline, the bottom outer wall of combustion chamber (10) is provided with slag notch (7).
2. a kind of fluidized-bed combustion boiler according to claim 1 combustion chamber, is characterized in that: the inner side of described air outlet (12) is pyramid type cavity.
3. a kind of fluidized-bed combustion boiler according to claim 1 combustion chamber, is characterized in that: between a described air blast (1) and an air compartment (4), be provided with burning starter (3).
4. a kind of fluidized-bed combustion boiler according to claim 1 combustion chamber, is characterized in that: the exhaust outlet of described point stratification of wind (5) is circle or rhombus, and the degree of depth is 10cm ~ 15cm.
5. a kind of fluidized-bed combustion boiler according to claim 1 combustion chamber, is characterized in that: the lower end of described evaporation tube (8) is near the upper surface of pushing off the slag net (11).
6. a kind of fluidized-bed combustion boiler according to claim 1 combustion chamber, is characterized in that: the inner chamber of described combustion chamber (10) is cylinder or Elliptic Cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320839956.1U CN203671591U (en) | 2013-12-19 | 2013-12-19 | Combustion chamber of fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320839956.1U CN203671591U (en) | 2013-12-19 | 2013-12-19 | Combustion chamber of fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203671591U true CN203671591U (en) | 2014-06-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320839956.1U Expired - Fee Related CN203671591U (en) | 2013-12-19 | 2013-12-19 | Combustion chamber of fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203671591U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402708A (en) * | 2015-11-10 | 2016-03-16 | 李聪 | Steam fluidized bed boiler of power station |
-
2013
- 2013-12-19 CN CN201320839956.1U patent/CN203671591U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402708A (en) * | 2015-11-10 | 2016-03-16 | 李聪 | Steam fluidized bed boiler of power station |
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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 |
Granted publication date: 20140625 Termination date: 20141219 |
|
| EXPY | Termination of patent right or utility model |