CN205640891U - Little oil of oxygen boosting surely fires coal burner - Google Patents
Little oil of oxygen boosting surely fires coal burner Download PDFInfo
- Publication number
- CN205640891U CN205640891U CN201620445313.2U CN201620445313U CN205640891U CN 205640891 U CN205640891 U CN 205640891U CN 201620445313 U CN201620445313 U CN 201620445313U CN 205640891 U CN205640891 U CN 205640891U
- Authority
- CN
- China
- Prior art keywords
- oxygen
- oil
- coal
- pipe
- premixer
- 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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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model relates to a little oil of oxygen boosting surely fires coal burner, including a tuber pipe, one time tuber pipe inside has coaxial buggy pipe, premixer, pulverized coal concentrator and the composite chamber of arranging in proper order, the outside evenly distributed of buggy pipe has a plurality of oxygen pipes, the buggy pipe with the premixer has the interval, the composite chamber includes primary burner and secondary combustion chamber, primary burner is the straight tube, secondary combustion chamber comprises divergent pipe and straight tube, primary burner has inserted fuel duct to one side, one time the outside cover of tuber pipe is equipped with coaxial perimeter tuber pipe, guide vanes is installed to the entry of perimeter tuber pipe. The utility model discloses simple structure has let in the oxygen boosting in the combustion processes that catches fire of buggy, and the certain angle of the axis of fuel duct's an axis and tuber pipe formation, and the fuel is changeed and is atomized to saved the fuel, improved and fired the cinder degree, thereby lighted a large amount of buggys and produced the very high torch of temperature.
Description
Technical field
This utility model relates to a kind of burner, particularly relates to a kind of oxygen-enriched micro-oil steady-burning coal power combustor.
Background technology
2012, China's imported crude oil about 2.85 hundred million tons, the interdependency of imported crude oil has been reached 58.7%.One
As current viewpoint think, state's petroleum import interdependency, more than 50%, just illustrates that this state has been enter into energy early warning
Phase.Visible oil has become the strategic materials of relation China economic security.Therefore, fuel-economizing is at current firepower
There is the strongest demand in power plant.The fuel-saving technique of comparative maturity has plasma oil-free ignition technology, micro-oil
(few oil) firing technique.But, both technology are all limited by ature of coal.For plasma ignition skill
Art, when using high-quality bituminous coal, it is possible to achieve without fuel oil power plant, but, for soft coal, meager coal
Low-load combustion-stabilizing effect the most relatively difficult to achieve.For igniting technology with less oil, as coal dust volatile matter Vdaf ＜ 14%,
During Aad ＞ 45%, ignition results is also affected.
Utility model content
For solving above-mentioned technical problem, the purpose of this utility model is to provide a kind of igniting rate of economizing gasoline and reaches 90%
Above oxygen-enriched micro-oil steady-burning coal power combustor.
The oxygen-enriched micro-oil steady-burning coal power combustor of one of the present utility model, including primary air piping, described First air
There is inside pipe coaxial coal dust conduit, premixer, pulverized coal concentrator and the composite chamber arranged successively；
Being evenly distributed with some oxygen catheters outside described coal dust conduit, described coal dust conduit has with described premixer
First-stage firing chamber and secondary combustion chamber, described first-stage firing chamber are straight to have interval, described composite chamber to include
Pipe, described secondary combustion chamber is made up of increaser and straight tube；Described first-stage firing chamber oblique cutting has fuel duct；
Described primary air piping outer cover is provided with coaxial circumference airduct, and the entrance of described circumference airduct is provided with water conservancy diversion leaf
Sheet.
Further, described premixer is cone, and the diameter of the part of close described coal dust conduit is more than leaning on
The diameter of nearly described pulverized coal concentrator part.
Further, described pulverized coal concentrator connects described premixer and described first-stage firing chamber, described coal dust
The part that concentrator connects with described premixer is straight tube, and described pulverized coal concentrator is with described first-stage firing chamber even
The part connect is reducing pipe.
Further, the angle between axis and the axis of described first-stage firing chamber of described fuel duct is
20～60 °.
Further, the radical of described oxygen catheter is 5～25.
Further, the outlet indent of described primary air piping, collectively form derivative combustion with described secondary combustion chamber
Burn room, the afterbody indent of described circumference airduct, agree with the shape of described primary air piping outlet.
By such scheme, this utility model at least has the advantage that
This utility model simple in construction, has been passed through oxygen-enriched in the Ignition of coal dust, and fuel duct
The axis shape of axis and primary air piping have a certain degree, fuel oil is more easy to be atomized, thus save fuel oil,
Improve burn-out degree, and create the highest torch of temperature thus light a large amount of coal dust.
Described above is only the general introduction of technical solutions of the utility model, in order to it is new to better understand this practicality
The technological means of type, and can be practiced according to the content of description, below with preferable reality of the present utility model
Execute example to be described in detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model one preferred embodiment；
Label in accompanying drawing is as follows: 1, primary air piping, and 2, coal dust conduit, 3, oxygen catheter, 4, premix
Room, 5, pulverized coal concentrator, 6, first-stage firing chamber, 7, fuel duct, 8, secondary combustion chamber, 9, circumference
Airduct, 10, guide vane.
Detailed description of the invention
Below in conjunction with embodiment, detailed description of the invention of the present utility model is described in further detail.Below
Embodiment is used for illustrating this utility model, but is not limited to scope of the present utility model.
Seeing Fig. 1, a kind of oxygen-enriched micro-oil steady-burning coal power combustor of this utility model, including primary air piping 1, institute
State primary air piping 1 internal have arrange successively coaxial coal dust conduit 2, premixer 4, pulverized coal concentrator 5
And composite chamber；Described coal dust conduit 2 is outside is evenly distributed with some oxygen catheters 3, described coal dust
Conduit 2 and described premixer 4 have interval, and described composite chamber includes first-stage firing chamber 6 and two grades of combustions
Burning room 8, described first-stage firing chamber 6 is straight tube, and described secondary combustion chamber 8 is made up of increaser and straight tube；Institute
State first-stage firing chamber 6 oblique cutting and have fuel duct 7；Described primary air piping 1 outer cover is provided with coaxial circumference airduct
9, the entrance of described circumference airduct 9 is provided with guide vane 10.
Described premixer 4 is cone, described more than close near the diameter of the part of described coal dust conduit 2
The diameter of pulverized coal concentrator 5 part.
Described pulverized coal concentrator 5 connects described premixer 4 and described first-stage firing chamber 6, described pulverized coal concentrator
5 parts connected with described premixer 4 are straight tube, and described pulverized coal concentrator 5 is with described first-stage firing chamber 6 even
The part connect is reducing pipe.
Angle between axis and the axis of described first-stage firing chamber 6 of described fuel duct 7 is 20～60 °.
The radical of described oxygen catheter 3 is 5～25.
The outlet indent of described primary air piping 1, collectively forms derivative combustor with described secondary combustion chamber 8,
The afterbody indent of described circumference airduct 9, agrees with the shape of described primary air piping 1 outlet.
Operation principle of the present utility model is as follows:
Coal dust sprays into premixer 4 by coal dust conduit 2, and oxygen is also passed through premixer 4 by oxygen catheter 3 simultaneously,
Oxygen catheter 3 can determine opening section according to practical situation or all, oxygen and coal dust are logical after premix
First-stage firing chamber 6 and secondary combustion chamber 8 is sprayed into successively after crossing pulverized coal concentrator 5, because the shape of premixer 4
And the shape of pulverized coal concentrator 5, coal dust concentrate on primary air piping 1 axis and near, remaining coal dust
Being scattered in other spaces, then fuel oil sprays into first-stage firing chamber 6 by fuel duct 7, and ignition point is lighted once
Coal dust in airduct 1, oily flame momentum at this moment is big, rigidity is strong, spread speed is fast, central temperature is high.
Then it is passed through First air from primary air piping 1 entrance, is passed through cooling surrounding air from circumference airduct 9 entrance, makes whole
Burner stable fires, and then closes fuel duct 7, coal dust conduit 2 and oxygen catheter 3.
This utility model simple in construction, has been passed through oxygen-enriched in the Ignition of coal dust, and fuel duct 7
The axis shape of axis and primary air piping 1 have a certain degree, fuel oil is more easy to be atomized, thus saves combustion
Oil, improve burn-out degree, and create the highest torch of temperature thus light a large amount of coal dust.
The above is only preferred implementation of the present utility model, is not limited to this utility model, should
When pointing out, for those skilled in the art, without departing from this utility model know-why
On the premise of, it is also possible to making some improvement and modification, these improve and modification also should be regarded as this utility model
Protection domain.
Claims (6)
1. oxygen-enriched micro-oil a steady-burning coal power combustor, including primary air piping, it is characterised in that described once
There is inside airduct coaxial coal dust conduit, premixer, pulverized coal concentrator and the multistage combustion arranged successively
Room；Some oxygen catheters, described coal dust conduit and described premix it is evenly distributed with outside described coal dust conduit
Room has interval, and described composite chamber includes first-stage firing chamber and secondary combustion chamber, described first-stage firing chamber
For straight tube, described secondary combustion chamber is made up of increaser and straight tube；Described first-stage firing chamber oblique cutting has fuel oil to lead
Pipe；Described primary air piping outer cover is provided with coaxial circumference airduct, and the entrance of described circumference airduct is provided with leads
Stream blade.
Oxygen-enriched micro-oil steady-burning coal power combustor the most according to claim 1, it is characterised in that described pre-
Mixed room is cone, and the diameter near the part of described coal dust conduit is more than near described pulverized coal concentrator part
Diameter.
Oxygen-enriched micro-oil steady-burning coal power combustor the most according to claim 1, it is characterised in that described coal
Powder concentrator connects described premixer and described first-stage firing chamber, described pulverized coal concentrator and described premixer phase
The part connect is straight tube, and the part that described pulverized coal concentrator is connected with described first-stage firing chamber is reducing pipe.
Oxygen-enriched micro-oil steady-burning coal power combustor the most according to claim 1, it is characterised in that described combustion
Angle between axis and the axis of described first-stage firing chamber of oil-piping layout is 20～60 °.
Oxygen-enriched micro-oil steady-burning coal power combustor the most according to claim 1, it is characterised in that described oxygen
The radical of airway is 5～25.
Oxygen-enriched micro-oil steady-burning coal power combustor the most according to claim 1, it is characterised in that described one
The outlet indent of secondary airduct, collectively forms derivative combustor with described secondary combustion chamber, described circumference airduct
Afterbody indent, agrees with the shape of described primary air piping outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620445313.2U CN205640891U (en) | 2016-05-17 | 2016-05-17 | Little oil of oxygen boosting surely fires coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620445313.2U CN205640891U (en) | 2016-05-17 | 2016-05-17 | Little oil of oxygen boosting surely fires coal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205640891U true CN205640891U (en) | 2016-10-12 |
Family
ID=57057077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620445313.2U Expired - Fee Related CN205640891U (en) | 2016-05-17 | 2016-05-17 | Little oil of oxygen boosting surely fires coal burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205640891U (en) |
-
2016
- 2016-05-17 CN CN201620445313.2U patent/CN205640891U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20170517 |