CN206958924U - A kind of steam boiler plant low Nox oil and gas combination burner - Google Patents
A kind of steam boiler plant low Nox oil and gas combination burner Download PDFInfo
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- CN206958924U CN206958924U CN201720423311.8U CN201720423311U CN206958924U CN 206958924 U CN206958924 U CN 206958924U CN 201720423311 U CN201720423311 U CN 201720423311U CN 206958924 U CN206958924 U CN 206958924U
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Abstract
The utility model discloses a kind of steam boiler plant low Nox oil and gas combination burner, is made up of brazier brick, gas bag rifle, oil combustion gun, air adjustment actuator, fire defector hole, altar lamp, spark lever propeller, flame-observing hole；The brazier brick uses tube structure, its bottom is connected with the gas bag rifle, the gas bag rifle is connected with the air adjustment actuator, the oil combustion gun is through the air adjustment actuator and is fixed on the center of burner, its top is provided with oil gun shower nozzle, its afterbody is respectively equipped with fuel filler and atomizing steam entrance, the oil gun shower nozzle is provided with two circle fuel inclination spray orifices, the utility model passes through fuel staging and flue gas recirculation, it ensure that the stable burning of fuel, the oxygen content and combustion flame temperature in flue gas are reduced, restrained effectively NO in flue gasXGeneration, burn gas operating mode under NOXConcentration is less than 100mg/Nm3, oil firing operating mode is compared with conventional boiler burner, NOXConcentration can reduce by 30% or so.
Description
Technical field
The energy-saving combustion and environmental protection technical field of petroleum industry tubular heater are the utility model is related to, more particularly to
A kind of steam boiler plant low Nox oil and gas combination burner.
Background technology
With developing rapidly for the industries such as oil-refining chemical, electric power, metallurgy, realize that low pollution emission proposes to burner combustion
Requirements at the higher level.According to the regulation of State Environmental Protection Administration, domestic petroleum refining industry is newly-built and existing enterprise's Furnace divides
Performed not from July 1st, 2015 and 1 day July in 2017《Petroleum refining industry pollutant emission standard》(GB35710-
2015) Air Pollutant Emission limit value as defined in, it discharges NO in flue gasXConcentration limit is 150mg/m3, territorial development it is intensive compared with
NO in the discharge flue gas that high area performsXConcentration limit is 100mg/m3.Understand according to market information, at present steam boiler plant
The middle oil and gas combination burner used, either single fire gas or single fire oil operating mode, generally existing NOXConcentration over-standard problem.
Utility model content
The purpose of this utility model is improved and innovated for defect present in background technology and problem, there is provided one
Kind steam boiler plant low Nox oil and gas combination burner, it is adapted to hot-air forced ventilation operation operating mode, utilizes flue gas
Waste heat recovery condition, it can stablize under the complex environments such as fuel pressure, component change and burn, no matter be gone back in single fire gas, single fire oil
It is that NO can be effectively reduced under oil-gas mixed burning operating modeXGrowing amount, reach the effect of energy-saving and environmental protection.
To achieve the above object, the technical solution of the utility model is as follows：
A kind of steam boiler plant low Nox oil and gas combination burner, by brazier brick, gas bag rifle, oil combustion gun, tune wind
Mechanism, fire defector hole, altar lamp, spark lever propeller, flame-observing hole composition；The brazier brick uses tube structure, its bottom
It is connected with the gas bag rifle, the gas bag rifle is connected with the air adjustment actuator, and the oil combustion gun is through the air adjustment actuator and consolidates
Due to the center of burner, its top is provided with oil gun shower nozzle, and its afterbody is respectively equipped with fuel filler and atomizing steam entrance, described
Oil gun shower nozzle is provided with two circle fuel inclination spray orifices, and the gas bag rifle uses branched structure, including inner ring gun sprayer and the spray of outer ring rifle
Head, the outer ring gun sprayer pass through the hole at the brazier brick edge and stretch out the head of brazier brick, and the inner ring gun sprayer is set
Once fuel jet orifice, the outer ring gun sprayer are provided with secondary fuel spray orifice；The outlet of the air adjustment actuator sets a circle eddy flow
Piece.
Preferably, the gas bag rifle is also including fuel gas inlet, the gas conduct pipe being connected with fuel gas inlet and gas conduct pipe phase
Annular gas bag even, the inner ring rifle conduit and outer ring rifle conduit being connected with annular gas bag, the inner ring gun sprayer and the inner ring
Rifle conduit is connected, and the outer ring gun sprayer is connected with the outer ring rifle conduit.
Further, the annular gas bag includes gas bag bottom plate, gas bag outer ring, gas bag inner ring, gas bag top plate, the fire
The bottom of basin brick is connected with the gas bag top plate.
Preferably, the oil combustion gun also includes gun platform, and the fuel filler is taken over by fuel oil to be connected with the gun platform, institute
State atomizing steam entrance by steam connection with the gun platform to be connected, the opposite side of the gun platform is connected with a fuel duct and steaming
Vapour conduit, the fuel duct and steam lead are connected by adapter sleeve with a blender, are provided with the top of the blender described
Oil gun shower nozzle.
Preferably, the fuel jet orifice of the inner ring gun sprayer is outward-dipping circular hole, the fuel of the outer ring gun sprayer
Spray orifice is intilted circular hole.
Preferably, the outer ring gun sprayer stretches out brazier brick head, the upper table of the upper surface of outer ring gun sprayer than brazier brick
The high 25-35mm in face.
Preferably, the oil gun shower nozzle of the oil combustion gun is provided with two circle fuel inclination spray orifices, and the angle of inner ring fuel jet orifice is
50 degree, the angle of outer ring fuel jet orifice is 80 degree.
Preferably, the fire defector hole, altar lamp, flame-observing hole are fixed at air adjustment actuator bottom, and the spark lever pushes away
Enter the afterbody that device is located at the altar lamp, spark lever is fixed by screws on the piston rod of propeller, and is inserted in altar lamp.
Preferably, the inlet louver of the air adjustment actuator is designed by the way of circumferentially parallel opening, and blade passes through company
Bar, gear, rack are connected with a tune wind handle.
Compared with prior art, the utility model has the advantage that：
1st, the fuel gas that the utility model is sprayed by gas bag rifle inner ring gun sprayer accounts for the 30% of total fuel gas, and shape
Into a flame, the fuel gas that gas bag rifle outer ring gun sprayer sprays accounts for the 70% of total fuel gas, forms secondary flame, once
The flue gas and excess air mixing supplying secondary flame combustion that flame combustion comes out, due to the flue gas and excess air of a flame
Mixing, oxygen concentration reduced, and gas bag rifle outer ring shower nozzle is also by the flue gas volume suction combustion zone in stove, therefore second-time burning
Flame temperature is low, so NOX generations are suppressed.
2nd, fuel oil gun sprayer of the present utility model is provided with two circle fuel inclination spray orifices, and the angle of outer ring oil spray orifice is 80 degree,
The fuel oil ejected accounts for the 50% of total fuel oil and forms outer flame, and the angle of inner ring oil spray orifice is 50 degree, is ejected
Fuel oil accounts for the 50% of total fuel oil and forms internal layer flame, and outer flame burning is carried out under great excess air, fire
Flame temperature is low, and in the air smoke mixture after outer flame burns, oxygen concentration has reduced, and supplies internal layer flame combustion,
Therefore NOx production is also low.
3rd, no matter the utility model can effectively reduce NOX generations compared with conventional burners in the case where burning gas, oil firing operating mode
Amount, combustion gas operating mode can reach 100mg/Nm3,30% or so can be reduced under fuel oil operating mode.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model
Fig. 2 is right view of the present utility model
Fig. 3 is the structural representation of the utility model gas bag rifle
Fig. 4 is the structural representation of the utility model oil combustion gun
In figure, 1- brazier bricks, 2- gas bag rifles, 3- oil combustion guns, 4- air adjustment actuators, 5- fire defectors hole, 6- altar lamps, 7-
Spark lever propeller, 8- flame-observing holes, 21- fuel gas inlets, 22- gas conduct pipes, 23- gas bag bottom plates, 24- gas bags outer ring, 25- gas
Bag inner ring, 26- gas bag top plates, 27- inner ring rifle conduits, 28- outer rings rifle conduit, 29- inner ring gun sprayers, 210- outer rings gun sprayer,
31- fuel fillers, the adapter of 32- fuel oils, 33- atomizing steam entrances, 34- steam connections, 35- gun platforms, 36- steam leads, 37-
Fuel duct, 38- adapter sleeves, 39- blenders, 310- oil gun shower nozzles.
Embodiment
The technical solution of the utility model is described in more detail with reference to the accompanying drawings and detailed description.
As Figure 1-Figure 4, a kind of steam boiler plant low Nox oil and gas combination burner, including brazier brick 1, gas
Bag rifle 2, oil combustion gun 3, air adjustment actuator 4, fire defector hole 5, altar lamp 6, spark lever propeller 7, flame-observing hole 8, the brazier brick 1
Using tube structure, its edge is provided with a circle hole, and its bottom is connected with the upper gas bag top plate 26 of gas bag rifle 2；The gas bag
Rifle 2 uses branched structure, including inner ring gun sprayer 29 and outer ring gun sprayer 210, and outer ring gun sprayer 210 inserts the edge of brazier brick
Hole is simultaneously higher by brazier brick upper surface 25-35mm, and inner ring gun sprayer 29 is provided with primary fuel spray orifice, outward-dipping injection, outer ring rifle
Shower nozzle 210 is provided with secondary fuel spray orifice, and slope inwardly injection；Oil combustion gun 3 is through the air adjustment actuator 4 and is fixed on burner
Center, its top are provided with oil gun shower nozzle 310, and its afterbody is respectively equipped with fuel filler 31 and atomizing steam entrance 33, the oil gun
Shower nozzle 310 is provided with two circle fuel inclination spray orifices, and the angle of inner ring oil spray orifice is 50 degree, and the angle of outer ring oil spray orifice is 80 degree；Institute
The outlet for stating air adjustment actuator 4 is connected with the ring pipe of gas bag rifle 2, and its inlet louver is set by the way of circumferentially parallel opening
Meter, blade is by connecting rod, gear, rack with adjusting wind handle to be connected, and suitable for the pattern of boiler plant entirety air feed, its outlet is set
Put a circle spinning disk；The fire defector hole 5, altar lamp 6, flame-observing hole 8 are fixed on the panel of the bottom of air adjustment actuator 4；It is described
Spark lever propeller 7 is arranged on the afterbody of altar lamp 6, and spark lever is fastened on the piston rod of propeller by screw, and is inserted
In altar lamp 6.
As shown in figure 3, the gas bag rifle also include fuel gas inlet 21, be connected with fuel gas inlet 21 gas conduct pipe 22, and
The connected annular gas bag of gas conduct pipe 22, the inner ring rifle conduit 27 and outer ring rifle conduit 28 that are connected with annular gas bag, the inner ring
Gun sprayer 29 is connected with the inner ring rifle conduit 27, and the outer ring gun sprayer 210 is connected with the outer ring rifle conduit 28；Inner ring rifle
Conduit 27 is preferably 8 or 10, and corresponding outer ring rifle conduit 28 is preferably 8 or 10；The annular gas bag includes gas bag
Bottom plate 23, gas bag outer ring 24, gas bag inner ring 25, gas bag top plate 26, the bottom of the brazier brick 1 and the phase of gas bag top plate 26
Even.
As shown in figure 4, the oil combustion gun 3 also includes gun platform 35, the fuel filler 31 by fuel oil adapter 32 with it is described
Gun platform 35 be connected, the atomizing steam entrance 33 is connected by steam connection 34 with the gun platform 35, the gun platform 35 it is another
Side is connected with a fuel duct 37 and steam lead 36, and the fuel duct 37 and steam lead 36 pass through adapter sleeve 38 and one
Blender 39 is connected, and the top of blender 39 is provided with the oil gun shower nozzle 310.
When the utility model is installed, it is connected by the gas bag top plate 26 on gas bag rifle 2 with body of heater, the bottom of air adjustment actuator 4
Panel is connected with the wallboard of overall bellows, and brazier brick 1 is placed on the gas bag top plate 26 of gas bag rifle 2, and blower fan is adjusted in the insertion of oil combustion gun 3
In oil gun sleeve pipe on structure 4, to be fixed by screw and burner, altar lamp 6 is inserted in the altar lamp sleeve pipe on air adjustment actuator 4,
Fixed by screw and burner, spark lever propeller 7 is fixed on the afterbody of altar lamp 6 by flange, and spark lever passes through screw
It is fastened on the piston rod of propeller, and inserts in altar lamp 6, is lighted using fixed electronic ignition lever.
The utility model burner is applied to first put altar lamp 6, then the two-stage by altar lamp point gas bag rifle 2 or oil combustion gun 3
Sparking mode, operating mode is operated suitable for hot-air forced ventilation and cold air gravity-flow ventilation, mixed in single fire gas, single fire oil or oil gas
Burning operating mode, under the complex environments such as fuel pressure, component change, it can stablize and burn, reach efficient, save, low NOXPollution row
Put the environmentally friendly purpose with low noise.
In the utility model operation, cold air preheats through waste-heat recovery device, and the hot-air of certain pressure, which enters, adjusts blower fan
The entrance of structure 4, according to payload, pass through the intake for adjusting wind handle control burner on the bottom panel of air adjustment actuator 4, heat
The circle spinning disk that air is exported by air adjustment actuator 4, improves air-flow mixing condition, the wadding for adding air-flow moves size, by force
The mixing of air and fuel is changed；The fuel gas that pipeline comes enters inside and outside through fuel gas inlet 21, gas conduct pipe 22, annular gas bag
Enclose rifle conduit, then flow to inner ring gun sprayer 29, outer ring gun sprayer 210 from fuel jet orifice be classified classification spray, inner ring gun sprayer 29
The fuel gas of ejection accounts for the 30% of total fuel gas, and forms a flame, and the fuel gas that outer ring gun sprayer sprays accounts for always firing
Expect the 70% of gas, form secondary flame, the flue gas and excess air mixing supplying secondary flame combustion that a flame combustion comes out,
Due to the mixing of the flue gas and excess air of a flame, oxygen concentration has reduced, and outer ring gun sprayer also rolls up the flue gas in stove
Combustion zone is sucked, therefore the flame temperature of second-time burning is low, so NOXGeneration is suppressed；The fuel oil and atomization that pipeline comes steam
Vapour enters blender 39 through fuel oil and steam inlet, adapter, gun platform, conduit respectively, and fuel oil and atomizing steam mix in blender
After closing atomization, then flowing to oil gun shower nozzle 310 and be layered from fuel jet orifice and sprayed, oil gun shower nozzle 310 is provided with two circle fuel inclination spray orifices,
The angle of outer ring oil spray orifice is 80 degree, and the fuel oil ejected accounts for the 50% of total fuel oil and forms outer flame, inner ring oil spray
The angle in hole is 50 degree, and the fuel oil ejected accounts for the 50% of total fuel oil and forms internal layer flame, and outer flame burns in pole
Carried out under big excess air, flame temperature is low, and in the air smoke mixture after outer flame burns, oxygen concentration has dropped
It is low, and internal layer flame combustion is supplied, therefore NOXGrowing amount is also low.
No matter the utility model can effectively reduce NOX generations compared with conventional burners in the case where burning gas, oil firing operating mode
Amount, combustion gas operating mode can reach 100mg/Nm3,30% or so can be reduced under fuel oil operating mode.
Embodiment described in the utility model is only the description carried out to preferred embodiment of the present utility model, not
The utility model spirit and scope are defined, on the premise of the utility model design philosophy is not departed from, work in this area
The all variations and modifications that journey technical staff makes to the technical solution of the utility model, protection of the present utility model all should be fallen into
Scope.
Claims (9)
1. a kind of steam boiler plant low Nox oil and gas combination burner, it is characterised in that by brazier brick, gas bag rifle, combustion
Oil gun, air adjustment actuator, fire defector hole, altar lamp, spark lever propeller, flame-observing hole composition；The brazier brick uses cylinder knot
Structure, its bottom are connected with the gas bag rifle, and the gas bag rifle is connected with the air adjustment actuator, and the oil combustion gun passes through the tune wind
Mechanism and the center for being fixed on burner, its top are provided with oil gun shower nozzle, and its afterbody is respectively equipped with fuel filler and atomizing steam
Entrance, the oil gun shower nozzle are provided with two circle fuel inclination spray orifices, and the gas bag rifle use branched structure, including inner ring gun sprayer with
Outer ring gun sprayer, the outer ring gun sprayer pass through the hole at the brazier brick edge and stretch out the head of brazier brick, the inner ring
Gun sprayer is provided with primary fuel spray orifice, and the outer ring gun sprayer is provided with secondary fuel spray orifice；The outlet of the air adjustment actuator is set
One circle spinning disk.
2. steam boiler plant according to claim 1 low Nox oil and gas combination burner, it is characterised in that described
Gas bag rifle is also including fuel gas inlet, the gas conduct pipe being connected with fuel gas inlet, the annular gas bag being connected with gas conduct pipe and annular
Gas bag connected inner ring rifle conduit and outer ring rifle conduit, the inner ring gun sprayer are connected with the inner ring rifle conduit, the outer ring
Gun sprayer is connected with the outer ring rifle conduit.
3. steam boiler plant according to claim 2 low Nox oil and gas combination burner, it is characterised in that described
Annular gas bag includes gas bag bottom plate, gas bag outer ring, gas bag inner ring, gas bag top plate, the bottom of the brazier brick and the gas bag top
Plate is connected.
4. steam boiler plant according to claim 1 low Nox oil and gas combination burner, it is characterised in that described
Oil combustion gun also includes gun platform, and the fuel filler is taken over by fuel oil to be connected with the gun platform, and the atomizing steam entrance passes through
Steam connection is connected with the gun platform, and the opposite side of the gun platform is connected with a fuel duct and steam lead, and the fuel oil is led
Pipe and steam lead are connected by adapter sleeve with a blender, and the oil gun shower nozzle is provided with the top of the blender.
5. steam boiler plant according to claim 1 low Nox oil and gas combination burner, it is characterised in that described
The fuel jet orifice of inner ring gun sprayer is outward-dipping circular hole, and the fuel jet orifice of the outer ring gun sprayer is intilted circle
Hole.
6. steam boiler plant according to claim 1 low Nox oil and gas combination burner, it is characterised in that described
Outer ring gun sprayer stretches out brazier brick head, and the upper surface of outer ring gun sprayer is higher 25-35mm than the upper surface of brazier brick.
7. steam boiler plant according to claim 1 low Nox oil and gas combination burner, it is characterised in that described
The oil gun shower nozzle of oil combustion gun is provided with two circle fuel inclination spray orifices, and the angle of inner ring fuel jet orifice is 50 degree, outer ring fuel jet orifice
Angle is 80 degree.
8. steam boiler plant according to claim 1 low Nox oil and gas combination burner, it is characterised in that described
Fire defector hole, altar lamp, flame-observing hole are fixed at air adjustment actuator bottom, and the spark lever propeller is located at the altar lamp
Afterbody, spark lever are fixed by screws on the piston rod of propeller, and are inserted in altar lamp.
9. steam boiler plant according to claim 1 low Nox oil and gas combination burner, it is characterised in that described
The inlet louver of air adjustment actuator is designed by the way of circumferentially parallel opening, and blade adjusts wind by connecting rod, gear, rack and one
Handle connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720423311.8U CN206958924U (en) | 2017-04-21 | 2017-04-21 | A kind of steam boiler plant low Nox oil and gas combination burner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720423311.8U CN206958924U (en) | 2017-04-21 | 2017-04-21 | A kind of steam boiler plant low Nox oil and gas combination burner |
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| Publication Number | Publication Date |
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| CN206958924U true CN206958924U (en) | 2018-02-02 |
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| CN201720423311.8U Active CN206958924U (en) | 2017-04-21 | 2017-04-21 | A kind of steam boiler plant low Nox oil and gas combination burner |
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| CN (1) | CN206958924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425852A (en) * | 2019-01-10 | 2020-07-17 | 宝山钢铁股份有限公司 | Multi-fuel positive pressure boiler burner |
-
2017
- 2017-04-21 CN CN201720423311.8U patent/CN206958924U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425852A (en) * | 2019-01-10 | 2020-07-17 | 宝山钢铁股份有限公司 | Multi-fuel positive pressure boiler burner |
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