CN204943462U - The wind speed Secondary Air burners such as a kind of New-type boiler - Google Patents
The wind speed Secondary Air burners such as a kind of New-type boiler Download PDFInfo
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- CN204943462U CN204943462U CN201520728563.2U CN201520728563U CN204943462U CN 204943462 U CN204943462 U CN 204943462U CN 201520728563 U CN201520728563 U CN 201520728563U CN 204943462 U CN204943462 U CN 204943462U
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- air
- closure plate
- wind speed
- burner
- air hose
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Abstract
The wind speed Secondary Air burners such as a kind of New-type boiler, comprise central air hose and be successively set on the some air loop ducts in central air hose circumference from the inside to the outside, central air hose and some air loop duct air inlet are provided with the combination closure plate of layered arrangement and the adjusting rod for regulating combination closure plate flexible, wherein, combination closure plate comprises the some layer closure plate corresponding with central air hose and some air loop duct air inlets, and some layers of closure plate are from outside to inside successively away from its air inlet.Combination closure plate successively annular passage and the central air hose of the layered arrangement regulating central air hose and some air loop duct air inlet to arrange by adjusting rod, under the state that burner total blast volume reduces, reduce the area of spout air circulation in proportion, keep its rigidity of the constant maintenance of wind speed and the momentum of the through-flow spout of burner, control water-wall corrosion, reduce nitrogen oxide, promote coal powder ignition and after-flame.Between closure plate and blocked air channel, leave ventilation gap, with to blocked air channel air feed, keep the cooling in each air channel of burner.
Description
Technical field:
The utility model belongs to power boiler burning technical field, is specifically related to the wind speed Secondary Air burners such as a kind of New-type boiler.
Background technology:
The wind speed of existing station boiler Secondary Air burner nozzle is regulated by the little air door of its import, vent wind speed raises along with the size of little throttle opening or reduces, when low air quantity, little damper turns down, burner nozzle wind speed decreases, and can not keep the design wind speed of burner outlet.Along with the decline of Secondary Air burner nozzle wind speed, its disturbance and penetration capacity reduce, to coal dust catch fire and after-flame unfavorable.When especially it can be used as burnout degree, adherent wind, vent wind speed declines, and air-spray momentum is not enough, has a strong impact on water-wall corrosion, the catching fire of the control of nitrogen oxide and coal dust, burnout characteristic etc.
For alleviating the adverse effect of burner nozzle wind speed decreased to the control of coal powder ignition, after-flame, water-wall corrosion and nitrogen oxide etc., needing badly and developing a kind of burner nozzle wind speed not reduce wait wind speed burner with little throttle opening minimizing.
Utility model content:
The purpose of this utility model is, for the deficiencies in the prior art, to provide the wind speed Secondary Air burners such as a kind of New-type boiler.
For achieving the above object, the utility model adopts following technical scheme to be achieved:
The wind speed Secondary Air burners such as a kind of New-type boiler, comprise central air hose and be successively set on the some air loop ducts in central air hose circumference from the inside to the outside, central air hose and some air loop duct air inlet are provided with the combination closure plate of layered arrangement and the adjusting rod for regulating combination closure plate flexible, wherein, combination closure plate comprises the some layer closure plate corresponding with central air hose and some air loop duct air inlets, and some layers of closure plate are from outside to inside successively away from its air inlet.
The utility model further improves and is: the through hole at central air hose center is circular port, and air loop duct comprises interior bostle pipe and outer bostle pipe, and interior bostle pipe and outer bostle pipe are successively set in the circumference of central air hose from the inside to the outside.
The utility model further improves and is: closure plate corresponding to central air hose air inlet is cone-shaped closure plate.
The utility model further improves and is: the through hole at central air hose center is manhole, and the surrounding of central air hose is respectively provided with an air loop duct with rectangular through-hole.
The utility model further improves and is: in combination closure plate, the closure plate area of every one deck is less than the air-admitting surface of its correspondence.
The utility model further improves and is: in combination closure plate, the closure plate of every one deck all offers chamfering near the air inlet side of its correspondence.
The utility model further improves and is: some layers of closure plate of combination closure plate are provided with gap with between corresponding central air hose and some air loop duct air inlets.
Relative to prior art, the utility model has following beneficial effect:
The utility model central air hose and the some air loop ducts be successively set on from the inside to the outside in central air hose circumference, the combination closure plate of its layered arrangement regulating central air hose and some air loop duct air inlet to arrange by adjusting rod successively blocks the area of air channel or annulus, under the state that burner total blast volume reduces, the area of same minimizing spout air circulation, keep its rigidity of the constant maintenance of wind speed and the momentum of the through-flow spout of burner, control water-wall corrosion, reduce nitrogen oxide, promote coal powder ignition and after-flame.Meanwhile, between closure plate and blocked air channel, leave ventilation gap, to by blocked air channel air feed, the cooling of burner nozzle can be kept.
Further, when the through hole at central air hose center is circular port, air loop duct comprises interior bostle pipe and outer bostle pipe, and closure plate corresponding to central air hose air inlet is cone-shaped closure plate, so that carry out shutoff to air inlet.
Further, when the through hole at central air hose center is rectangular through-hole, the surrounding of central air hose is respectively provided with an air loop duct with rectangular through-hole.In addition, in combination closure plate, the closure plate area of every one deck is less than the air-admitting surface of its correspondence, so that play cooling effect to blocked air channel air feed.
Further, in combination closure plate, the closure plate of every one deck all offers chamfering near the air inlet side of its correspondence, so that closure plate enters corresponding air inlet fast.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the wind speed Secondary Air burners such as a kind of New-type boiler of the utility model.
In figure: airduct centered by 1,2 is interior bostle pipe, and 3 is outer bostle pipe, and 4 is combination closure plate, and 5 is adjusting rod.
Detailed description of the invention:
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, the wind speed Secondary Air burners such as a kind of New-type boiler of the utility model, comprise central air hose 1 and be successively set on the some air loop ducts in central air hose 1 circumference from the inside to the outside, central air hose 1 and some air loop duct air inlet are provided with the combination closure plate 4 of layered arrangement and the adjusting rod for regulating combination closure plate 4 flexible, wherein, combination closure plate 4 comprises the some layer closure plate corresponding with central air hose 1 and some air loop duct air inlets, and some layers of closure plate are from outside to inside successively away from its air inlet.
Further, when the through hole at central air hose 1 center is circular port, air loop duct comprises interior bostle pipe 2 and outer bostle pipe 3, and interior bostle pipe 2 and outer bostle pipe 3 are successively set in the circumference of central air hose 1 from the inside to the outside.In addition, the closure plate that central air hose 1 air inlet is corresponding is cone-shaped closure plate.
Further, the through hole at central air hose 1 center is rectangular through-hole, and the surrounding of central air hose 1 is respectively provided with an air loop duct with rectangular through-hole.In addition, in combination closure plate 4, the closure plate area of every one deck is less than the air-admitting surface of its correspondence, to by the cooling in the air channel of closure plate shutoff.In combination closure plate 4, the closure plate of every one deck all offers chamfering near the air inlet side of its correspondence, so that closure plate enters corresponding air inlet fast, and first block air loop duct when advancing, next blocks central air hose.
As shown in Figure 1, during use, when boiler at low load or air quantity reduce, the little damper aperture pass hour of Secondary Air, adjusting rod 5 is pushed away from right to left, combination closure plate 4 shutoff outer shroud air channel, inner ring air channel successively, can keep the through-flow vent wind speed of burner constant like this when little damper diminishes.
In addition, the utility model is particularly useful for boiler combustion exhausted wind, adherent wind and Secondary Air burner, can keep its rigidity preferably, promote coal dust firing and after-flame, prevent water-wall corrosion, reduce nitrogen oxide.
Embodiment:
Be exemplified below: when burner uses as adherent wind, burnout degree and Secondary Air burner, along with damper aperture diminishes to 70%, outer shroud air channel blocks by regulating closure plate by this burner, makes the total flow area of burner reduce 30%; Along with after-flame bellows damper aperture continues to diminish to 50%, by regulating closure plate to be blocked in inner ring air channel, the more total flow area of burner is made to reduce 40%; Along with after-flame bellows damper aperture continues to diminish to 10%, by regulating adjusting rod and closure plate to be blocked in portion centers air channel, then making the total flow area of burner reduce 20%, staying the flow area of minimum 10%.
Claims (7)
1. the wind speed Secondary Air burner such as New-type boiler, it is characterized in that: the some air loop ducts comprising central air hose (1) and be successively set on from the inside to the outside in central air hose (1) circumference, central air hose (1) and some air loop duct air inlet are provided with the combination closure plate (4) of layered arrangement and the adjusting rod (5) for regulating combination closure plate (4) flexible, wherein, combination closure plate (4) comprises the some layer closure plate corresponding with central air hose (1) and some air loop duct air inlets, some layers of closure plate are from outside to inside successively away from its air inlet.
2. the wind speed Secondary Air burner such as a kind of New-type boiler according to claim 1, it is characterized in that: the through hole at central air hose (1) center is circular port, air loop duct comprises interior bostle pipe (2) and outer bostle pipe (3), and interior bostle pipe (2) and outer bostle pipe (3) are successively set in the circumference of central air hose (1) from the inside to the outside.
3. the wind speed Secondary Air burner such as a kind of New-type boiler according to claim 2, is characterized in that: closure plate corresponding to central air hose (1) air inlet is cone-shaped closure plate.
4. the wind speed Secondary Air burner such as a kind of New-type boiler according to claim 1, it is characterized in that: the through hole at central air hose (1) center is manhole, the surrounding of central air hose (1) is respectively provided with an air loop duct with rectangular through-hole.
5. the wind speed Secondary Air burner such as a kind of New-type boiler according to claim 4, is characterized in that: in combination closure plate (4), the closure plate area of every one deck is less than the air-admitting surface of its correspondence.
6. the wind speed Secondary Air burner such as a kind of New-type boiler according to claim 5, is characterized in that: in combination closure plate (4), the closure plate of every one deck all offers chamfering near the air inlet side of its correspondence.
7. the wind speed Secondary Air burner such as a kind of New-type boiler according to claim 1, is characterized in that: some layers of closure plate of combination closure plate (4) are provided with gap with between corresponding central air hose (1) and some air loop duct air inlets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520728563.2U CN204943462U (en) | 2015-09-18 | 2015-09-18 | The wind speed Secondary Air burners such as a kind of New-type boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520728563.2U CN204943462U (en) | 2015-09-18 | 2015-09-18 | The wind speed Secondary Air burners such as a kind of New-type boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204943462U true CN204943462U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520728563.2U Expired - Fee Related CN204943462U (en) | 2015-09-18 | 2015-09-18 | The wind speed Secondary Air burners such as a kind of New-type boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204943462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838784A (en) * | 2019-02-28 | 2019-06-04 | 北京航化节能环保技术有限公司 | A kind of novel burner adapting to multi-state |
-
2015
- 2015-09-18 CN CN201520728563.2U patent/CN204943462U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838784A (en) * | 2019-02-28 | 2019-06-04 | 北京航化节能环保技术有限公司 | A kind of novel burner adapting to multi-state |
| CN109838784B (en) * | 2019-02-28 | 2024-02-09 | 北京航化节能环保技术有限公司 | Novel combustor suitable for multiple working conditions |
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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: 20160106 Termination date: 20170918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |