CN202203940U - Fuel nozzle for industrial kiln - Google Patents
Fuel nozzle for industrial kiln Download PDFInfo
- Publication number
- CN202203940U CN202203940U CN2011202484576U CN201120248457U CN202203940U CN 202203940 U CN202203940 U CN 202203940U CN 2011202484576 U CN2011202484576 U CN 2011202484576U CN 201120248457 U CN201120248457 U CN 201120248457U CN 202203940 U CN202203940 U CN 202203940U
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- nozzle
- fuel nozzle
- air inlet
- atomizer core
- conical surface
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Abstract
The utility model relates to a fuel nozzle for an industrial kiln. The fuel nozzle is characterized in that a nozzle core (4), an ultrasonic reed (5), a bubble generator (6), a cyclone (11) and an air cap (8) are arranged in a housing (3) and are sequentially in adaptive connection in the direction from an oil inlet (1) to a nozzle (13), wherein the cyclone (11) is divided into a left part and a right part; three rows of symmetrically-drilled tangential holes are formed on the left half part; the right half part adopts a retracted conical surface; a slotted channel is marked on the conical surface, is not communicated with an inner hole, and is matched with an inner conical surface of the air cap (8) to form a spiral air pipe; an air inlet (2), a primary air inlet (9), a secondary air inlet (7) and a third air inlet (10) are formed in the housing (3); an air outlet channel (12) is arranged in the nozzle core (4); and the ultrasonic reed (5) with 3.5-6mm in width and 30-60mm in length is arranged at the position of 2.5-4mm to a nozzle hole of the nozzle core. The utility model has the benefits that: the fuel nozzle provided by the utility model can be applied to fuel with high viscosity, and the atomization effect is better owing to the integration of the ultrasonic wave and bubble atomization.
Description
Technical field
The utility model relates to a kind of fuel nozzle of industrial kiln.
Background technology
(slag) oil of almost all attaching most importance to that China's Industrial Stoves use.Use the unlabelled residual oil of Coal Chemical Industry leftover bits and pieces allotment more and more to be widely used.Be characterized in that viscosity is high and ash is big, impurity is many.Generally come with steam or air medium atomization for this fuel is at present domestic as atomizing medium.What generally adopt is critical bubble crushing atomizing and critical broken impacting type atomization technique.There are many problems in these two kinds of atomizing types in practical application:
Though 1, effervescent atomization can carry out good atomizing to the bigger fuel oil of viscosity.But flame holding (flame rigidity) is relatively poor.Reason is that oil stream forms column.Although formed bubble.But more the axial oil air-flow of not blending under fuel oil viscosity condition with higher.More serious in the lower dry kiln of kiln temperature.
2, the impacting type atomizing needs more atomizing medium.Energy-saving effect is relatively poor.Compare with effervescent atomization under equal atomizing medium situation and working.Atomization is relatively poor.
3, above two kinds of atomizing types are for cooperating the blending of secondary wind.The porous that adopt export more.Angle with axis formation 15-60 degree.Undesirable with the secondary wind blending in the less Industrial Stoves in combustion space.The air distribution difficulty.Cause incomplete combustion.
4, owing to adopt the porous outlet. outlet diameter is less.When the fuel ash is big, occur coking phenomenon easily and stop up muzzle.The fuel oil application bigger to ash content is very limited.
Summary of the invention
The purpose of the utility model provides a kind of fuel nozzle of industrial kiln.
What it was that the Industrial Stoves burner of fuel designs with high viscosity, ash-rich heavy (slag) oil and Coal Chemical Industry tempered oil is medium with compressed air or steam, the oil burner nozzle that dependence ultrasonic wave, effervescent atomization carry out compound atomizing.This spray is ticked and can be carried out good atomizing by fuel oil big to viscosity, that impurity is high.The flame rigidity is good.Can be adapted to low temperature and burn the limited Industrial Stoves in space.Flame brightness is big.Energy-saving effect is obvious.And effectively solved the problem of muzzle obstruction, coking.
The utility model solves the technical scheme that its technical problem adopted:
A kind of fuel nozzle of industrial kiln; It is characterized in that: atomizer core in the enclosure, ultrasonic wave beating reed, bubble generator, cyclone and blast cap are connected to the spout direction is adaptive from oil-in successively; Two parts about cyclone is divided into, its tangential hole that part divides three gang drills that symmetry is arranged in the left side is at the conical surface of right half part for shrinking; Be carved with conduit on the conical surface; Conduit is not communicated with endoporus, with the adaptive formation spiral duct of the inner conical surface of blast cap, is provided with air inlet, air inlet, secondary air inlet mouth, three return-air air inlets in the enclosure; Be provided with oil road in the atomizer core, a long ultrasonic wave beating reed of the wide 30～60mm of 3.5～6mm is arranged at 2.5～4mm place, atomizer core exit.
The nozzle opening of said atomizer core is a rectangle.
Bubble generator injecting hole diameter is 0.5～4mm, 32～48 of circular holes.
The atomizer core can be circular hole, and oil road can be cancelled in ultrasonic wave beating reed and the atomizer core.
Oil road can be the enlarging passage in the atomizer core.
Ultrasonic atomization, effervescent atomization and mechanical atomization are carried out the atomizing of three steps to oil plant and are handled.The first step is when oil plant gets into the atomizer core with the pressure of 0.3～0.8Mp, at atomizer core spout place.Rely on the ultrasonic wave beating reed, under the effect of fuel oil fluid dynamic, produce ultrasonic oscillation.Fuel oil carries out cavitation process under the ultrasonic wave effect, to reduce the fuel oil viscosity.And produce a certain amount of bubble.Second step.Through bubble generator, inject the compression atomizing medium to fuel oil, in fuel oil, form a large amount of fine and closely woven bubbles.In the 3rd step, produce the same swirling flow atomizing medium of similar cyclone through cyclone.The fuel oil that contains great amount of bubbles with flowing out from bubble generator converges at spout.Further broken, spray by spout.After the little oil droplet of the oil bag gas of ejection gets into atmosphere.The outside becomes normal pressure.Explosion can take place in inner high-pressure atomization medium gas.Once more fuel is carried out fragmentation.Make mist of oil straight toward reaching littler.
The beneficial effect of the utility model is: go for the very high fuel of viscosity.Can carry out good atomizing to the fuel oil below the Engler viscosity 70E.Ultrasonic wave+effervescent atomization can make atomizing effect better.SMD＜40um in the experiment.The atomization gas consumption of nozzle is less.Gas/liquid ratio is about 25%.The huge rotation wind that cyclone produces has overcome nozzle coking and blocking problem, makes that nozzle is better to the oil atomization quality, homogeneity is higher.The rotation bulk flame that the oil mist combustion of rotation forms very easily cooperates with Industrial Stoves, and the kiln lower to furnace temperature for example in the drying drum of pitch mixing station, all can be obtained satisfied effect.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified:
Fig. 1: view is analysed and observe in the general assembly that is the utility model;
Fig. 2: bubble generator cutaway view;
Fig. 3: atomizer core and ultrasonic wave beating reed cutaway view;
Fig. 4: circulator cutaway view;
Fig. 5: circulator structure chart.
Among the figure: 1. oil-in, 2. air inlet, 3. shell, 4. atomizer core, 5. ultrasonic wave beating reed, 6. bubble generator, 7. secondary air inlet mouth, 8. blast cap, 9. air inlet, 10. three return-air air inlets, 11. cyclones, 12. oil roads, 13. spouts.
The specific embodiment
A kind of fuel nozzle of industrial kiln; It is characterized in that: 13 directions are adaptive from oil-in 1 to spout successively is connected for the atomizer core 4 in shell 3, ultrasonic wave beating reed 5, bubble generator 6, cyclone 11 and blast cap 8; Two parts about cyclone 11 is divided into, its tangential hole that part divides three gang drills that symmetry is arranged in the left side is at the conical surface of right half part for shrinking; Be carved with conduit on the conical surface; Conduit is not communicated with endoporus, with the adaptive formation spiral duct of the inner conical surface of blast cap 8, in shell 3, is provided with air inlet 2, air inlet 9, secondary air inlet mouth 7, three return-air air inlets 10; Be provided with oil road 12 in the atomizer core 4, a long ultrasonic wave beating reed of the wide 30～60mm of 3.5～6mm is arranged at atomizer core spray orifice 2.5～4mm place.
The nozzle opening of said atomizer core 4 is a rectangle.
Bubble generator 6 injecting hole diameters are 0.5～4mm, 32～48 of circular holes.
Atomizer core 4 can be circular hole, and oil road 12 can be cancelled in ultrasonic wave beating reed and the atomizer core 4.
Claims (5)
1. the fuel nozzle of an industrial kiln; It is characterized in that: the atomizer core (4) in shell (3), ultrasonic wave beating reed (5), bubble generator (6), cyclone (11) and blast cap (8) successively from oil-in (1) to spout (13) the adaptive connection of direction; Two parts about cyclone (11) is divided into, its tangential hole that part divides three gang drills that symmetry is arranged in the left side is at the conical surface of right half part for shrinking; Be carved with conduit on the conical surface; Conduit is not communicated with endoporus, and the adaptive formation spiral duct of the inner conical surface of same blast cap (8) is provided with air inlet (2), an air inlet (9), secondary air inlet mouth (7), three return-air air inlets (10) in shell (3); Be provided with oil road (12) in the atomizer core (4), a long ultrasonic wave beating reed (5) of the wide 30～60mm of 3.5～6mm is arranged at atomizer core spray orifice 2.5～4mm place.
2. the fuel nozzle of a kind of industrial kiln according to claim 1, it is characterized in that: the nozzle opening of said atomizer core (4) is a rectangle.
3. the fuel nozzle of a kind of industrial kiln according to claim 1, it is characterized in that: bubble generator (6) injecting hole diameter is 0.5～4mm, 32～48 of circular holes.
4. the fuel nozzle of a kind of industrial kiln according to claim 1, it is characterized in that: atomizer core (4) is a circular hole, oil road (12) cancellation in ultrasonic wave beating reed and the atomizer core (4).
5. according to the fuel nozzle of the said a kind of industrial kiln of claim 1, it is characterized in that: oil road (12) is the enlarging passage in the atomizer core (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202484576U CN202203940U (en) | 2011-07-04 | 2011-07-04 | Fuel nozzle for industrial kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202484576U CN202203940U (en) | 2011-07-04 | 2011-07-04 | Fuel nozzle for industrial kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202203940U true CN202203940U (en) | 2012-04-25 |
Family
ID=45968061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202484576U Expired - Fee Related CN202203940U (en) | 2011-07-04 | 2011-07-04 | Fuel nozzle for industrial kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202203940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313286A (en) * | 2011-07-04 | 2012-01-11 | 姜伟 | Fuel oil nozzle for industrial kiln |
-
2011
- 2011-07-04 CN CN2011202484576U patent/CN202203940U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313286A (en) * | 2011-07-04 | 2012-01-11 | 姜伟 | Fuel oil nozzle for industrial kiln |
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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: 20120425 Termination date: 20160704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |