CN204786375U - Buggy blunt body combustor that cracks - Google Patents
Buggy blunt body combustor that cracks Download PDFInfo
- Publication number
- CN204786375U CN204786375U CN201520588987.3U CN201520588987U CN204786375U CN 204786375 U CN204786375 U CN 204786375U CN 201520588987 U CN201520588987 U CN 201520588987U CN 204786375 U CN204786375 U CN 204786375U
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- CN
- China
- Prior art keywords
- coal
- combustor
- bluff
- tuber pipe
- blunt
- 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 coal fired boiler field, aim at provides a buggy blunt body combustor that cracks, buggy blunt body combustor that cracks, including the combustor main part, be equipped with the coal tuber pipe that is parallel to each other in the combustor main part, fire oil pipe and back flow, the entry setting of back flow is in the both sides of coal tuber pipe export, fire oil pipe set up in in the coal tuber pipe, coal tuber pipe exit is equipped with two blunt bodies and cowling panel, form the gap between two blunt bodies. The utility model has the advantages of the exit of coal tuber pipe is equipped with two blunt bodies, forms the entry between two blunt bodies and goes out young shrink shape gap greatly, makes the flame stabilizing of combustor, practices thrift combustion -supporting oil, is equipped with the back flow in the combustor, in can collecting the hot -air the combustion chamber in and sneaking into the coal tuber pipe, tentatively heats the buggy in the coal tuber pipe, and supplementary pulverized coal combustion is equipped with the cooling air and exports on the blunt body, prevent that the combustor main part is overheated to to the flame oxygen suppliment.
Description
Technical field
The utility model relates to coal-burning boiler field, particularly a kind of coal dust slitting bluff-body burner.
Background technology
In prior art, adopting the pulverized-coal fired boiler of general pulverized coal combustion, when lighting a fire kindling, generally all will first burn a large amount of oil, the coal dust firing sprayed into then just can be made to stablize.In addition, due to general pulverized-coal fired boiler load lower than 70% time, combustion instability, in order to stable burning under keeping underload also needs considerablely to help fuel oil.Although existing cylinder type coal powder pre-burning room serves the effect of saving igniting and helping fuel oil, but China manufactures and the pulverized-coal fired boiler great majority of use adopt angle to put coal burner, this kind of boiler adopts cylinder type coal powder pre-burning room, due to boiler structure reason, not very convenient, and repacking workload is larger.
Utility model content
The purpose of this utility model is to overcome above-mentioned defect, provides a kind of and saves combustion-supporting oil, combustion stablized coal dust slitting bluff-body burner.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of coal dust slitting bluff-body burner, comprise burner body, the coal airduct, fuel pipe and the return duct that are parallel to each other is provided with in described burner body, the entrance of described return duct is arranged on the both sides of described coal wind tube outlet, described fuel pipe is arranged in described coal airduct, described coal wind tube outlet place is provided with two bluff bodies and cowling panel, gap is formed between described two bluff bodies, the width of air intake side, described gap is greater than the width of air-out side, gap, the outlet of described fuel pipe is arranged in described gap, and described bluff body is provided with cooling air outlet.
Further, the quantity of described cowling panel is two, and described two cowling panels are arranged on the both sides of described two bluff bodies, and the bearing of trend of described cowling panel is parallel with coal airduct direction.
Further, described fuel pipe is provided with protective casing.
The beneficial effects of the utility model are: the exit of coal airduct is provided with two bluff bodies, the contraction shape gap that entrance large outlet is little is formed between two bluff bodies, make the flame stabilization of burner, save combustion-supporting oil, in burner, be provided with return duct, the hot-air in combustion chamber can be collected and be mixed in coal airduct, tentatively heat the coal dust in coal airduct, auxiliary coal dust firing, bluff body is provided with cooling air outlet, prevent burner body overheated, and to flame oxygen supply.
Accompanying drawing explanation
Fig. 1 is the sectional view of the utility model embodiment coal dust slitting bluff-body burner;
Fig. 2 is the front view of the utility model embodiment coal dust slitting bluff-body burner.
Label declaration:
1, coal airduct; 2, fuel pipe; 3, return duct; 11, bluff body; 12, cowling panel; 13, cooling air outlet; 21, protective casing.
Detailed description of the invention
By describing technology contents of the present utility model, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with embodiment.
The design of the utility model most critical is: the exit of coal airduct is provided with two bluff bodies, forms the contraction shape gap that entrance large outlet is little, make the flame stabilization of burner, save combustion-supporting oil between two bluff bodies.
Refer to shown in Fig. 1 to Fig. 2, coal dust slotted blunt 11 burner of the present embodiment, comprise burner body, the coal airduct 1 be parallel to each other is provided with in described burner body, fuel pipe 2 and return duct 3, the entrance of described return duct 3 is arranged on the both sides of described coal airduct 1 outlet, described fuel pipe 2 is arranged in described coal airduct 1, described coal airduct 1 exit is provided with two bluff bodies 11 and cowling panel 12, the contraction shape gap that entrance large outlet is little is formed between described two bluff bodies 11, the width of air intake side, described gap is greater than the width of air-out side, gap, the outlet of described fuel pipe 2 is arranged in described gap, described bluff body 11 is provided with cooling air outlet 13.
The course of work of the present utility model is: the exit of coal airduct 1 is provided with two bluff bodies 11, the contraction shape gap that entrance large outlet is little is formed between two bluff bodies 11, coal dust was compressed when entering gap, the higher region of a coal powder density is formed at slot outlet place, make coal powder ignition point in advance, also can keep the inner cone of a smooth combustion when burner load reduces, thus save flame retardant oil.
From foregoing description, the beneficial effects of the utility model are: the exit of coal airduct 1 is provided with two bluff bodies 11, the contraction shape gap that entrance large outlet is little is formed between two bluff bodies 11, make the flame stabilization of burner, save combustion-supporting oil, return duct 3 is provided with in burner, the hot-air in combustion chamber can be collected and be mixed in coal airduct 1, coal dust in coal airduct 1 is tentatively heated, auxiliary coal dust firing, bluff body 11 is provided with cooling air outlet 13, prevents burner body overheated, and to flame oxygen supply.
Further, the quantity of described cowling panel 12 is two, and described two cowling panels 12 are arranged on the both sides of described two bluff bodies 11, and the bearing of trend of described cowling panel 12 is parallel with coal airduct 1 direction.
Seen from the above description, cowling panel 12 can carry out rectification guiding to the coal wind in coal airduct 1, and coal wind is separated into area with high mercury and low concentration region, form sectional combustion operating mode in coal airduct 1 exit, form the primary combustion zone of anoxycausis and the intermediate zone of oxygen abundance thus reduce NO
xdischarge.
Further, described fuel pipe 2 is provided with protective casing 21.
Seen from the above description, protective casing 21 can protect fuel pipe 2, prevents coal wind from washing away for a long time and causes damage to fuel pipe 2.
Please refer to shown in Fig. 1 to Fig. 2, embodiment one of the present utility model is:
A kind of coal dust slotted blunt 11 burner, comprise burner body, the coal airduct 1 be parallel to each other is provided with in described burner body, fuel pipe 2 and return duct 3, the entrance of described return duct 3 is arranged on the both sides of described coal airduct 1 outlet, described fuel pipe 2 is arranged in described coal airduct 1, described coal airduct 1 exit is provided with two bluff bodies 11 and cowling panel 12, formed between described two bluff bodies 11 and shrink shape gap, the width of air intake side, described gap is greater than the width of air-out side, gap, the outlet of described fuel pipe 2 is arranged in described gap, described bluff body 11 is provided with cooling air outlet 13, the quantity of described cowling panel 12 is two, described two cowling panels 12 are arranged on the both sides of described two bluff bodies 11, the bearing of trend of described cowling panel 12 is parallel with coal airduct 1 direction, described fuel pipe 2 is provided with protective casing 21.
In sum, the coal dust slitting bluff-body burner that the utility model provides, the exit of coal airduct is provided with two bluff bodies, the contraction shape gap that entrance large outlet is little is formed between two bluff bodies, make the flame stabilization of burner, save combustion-supporting oil, return duct is provided with in burner, the hot-air in combustion chamber can be collected and be mixed in coal airduct, coal dust in coal airduct is tentatively heated, auxiliary coal dust firing, bluff body is provided with cooling air outlet, prevent burner body overheated, and to flame oxygen supply, cowling panel can carry out rectification guiding to the coal wind in coal airduct, and coal wind is separated into area with high mercury and low concentration region, sectional combustion operating mode is formed at coal wind tube outlet place, form the primary combustion zone of anoxycausis and the intermediate zone of oxygen abundance thus reduce NO
xdischarge, protective casing can protect fuel pipe, prevents coal wind from washing away for a long time and causes damage to fuel pipe.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. a coal dust slitting bluff-body burner, it is characterized in that: comprise burner body, the coal airduct be parallel to each other is provided with in described burner body, fuel pipe and return duct, the entrance of described return duct is arranged on the both sides of described coal wind tube outlet, described fuel pipe is arranged in described coal airduct, described coal wind tube outlet place is provided with two bluff bodies and cowling panel, gap is formed between described two bluff bodies, the width of air intake side, described gap is greater than the width of air-out side, gap, the outlet of described fuel pipe is arranged in described gap, described bluff body is provided with cooling air outlet.
2. coal dust slitting bluff-body burner according to claim 1, is characterized in that: the quantity of described cowling panel is two, and described two cowling panels are arranged on the both sides of described two bluff bodies, and the bearing of trend of described cowling panel is parallel with coal airduct direction.
3. coal dust slitting bluff-body burner according to claim 1, is characterized in that: described fuel pipe is provided with protective casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588987.3U CN204786375U (en) | 2015-08-07 | 2015-08-07 | Buggy blunt body combustor that cracks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588987.3U CN204786375U (en) | 2015-08-07 | 2015-08-07 | Buggy blunt body combustor that cracks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204786375U true CN204786375U (en) | 2015-11-18 |
Family
ID=54526421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520588987.3U Expired - Fee Related CN204786375U (en) | 2015-08-07 | 2015-08-07 | Buggy blunt body combustor that cracks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204786375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196039A (en) * | 2016-08-29 | 2016-12-07 | 煤科院节能技术有限公司 | A kind of slotted blunt |
-
2015
- 2015-08-07 CN CN201520588987.3U patent/CN204786375U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196039A (en) * | 2016-08-29 | 2016-12-07 | 煤科院节能技术有限公司 | A kind of slotted blunt |
| CN106196039B (en) * | 2016-08-29 | 2018-05-25 | 煤科院节能技术有限公司 | A kind of slotted blunt |
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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: 20151118 Termination date: 20160807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |