CN203718776U - Combustor with stable flame and low NOx (Nitric Oxide) - Google Patents
Combustor with stable flame and low NOx (Nitric Oxide) Download PDFInfo
- Publication number
- CN203718776U CN203718776U CN201420008824.9U CN201420008824U CN203718776U CN 203718776 U CN203718776 U CN 203718776U CN 201420008824 U CN201420008824 U CN 201420008824U CN 203718776 U CN203718776 U CN 203718776U
- Authority
- CN
- China
- Prior art keywords
- refractory brick
- supervisor
- burner
- branched pipe
- cylindrical shell
- 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 - Lifetime
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title abstract description 16
- 239000011449 brick Substances 0.000 claims abstract description 93
- 238000002485 combustion reaction Methods 0.000 claims abstract description 50
- 239000007921 spray Substances 0.000 claims abstract description 26
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 89
- 239000000446 fuel Substances 0.000 description 30
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 21
- 239000003546 flue gas Substances 0.000 description 21
- 238000005516 engineering process Methods 0.000 description 7
- 238000005755 formation reaction Methods 0.000 description 6
- 230000003134 recirculating effect Effects 0.000 description 5
- 206010020843 Hyperthermia Diseases 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000036031 hyperthermia Effects 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000003019 stabilising effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model provides a combustor with stable flame and low NOx (Nitric Oxide). The combustor is arranged in a hearth (5) of a tubular furnace, and comprises a barrel (2), refractory bricks (6), gas spray guns (4) and a night light (3), wherein the refractory bricks (6) are located at the upper part of the barrel (2), flame paths (14) are formed in the refractory bricks (6) and are concentric to the barrel (2), and each gas spray gun (4) comprises a main pipe (16), a main pipe gas sprayer (8), a branched pipe (5) and a branched pipe gas sprayer (7); the each main pipe gas sprayer (8) are higher than each branched pipe gas sprayer (7), so that the main pipe gas sprayers (8) and the branched pipe gas sprayers (7) and combustion air are combusted by stages. Compared with the prior combustor, the highest temperature of the flame of the combustor provided by the utility model can be reduced by about 200 DEG C, the NOx production can be reduced by 60-70%, and the operation cost can be reduced.
Description
Technical field
The utility model relates to a kind of burner of industrial tube furnace, is specifically related to a kind of New-type fuel classification and stabilizes the flame low NO
xburner.
Background technology
Along with the development of industrial tube furnace burner combustion technology and the raising day by day of environmental requirement, all the more strict to the requirement of burner discharge index.NO in new standard regulation flue gas
xdischarge index requires to be controlled at below 50ppm, low NO
xdischarge value becomes the important technology index of current measurement burner product.
In order to meet the environmental requirement of increasingly stringent, low NO
xburner has obtained development technically.It reduces NO in combustion process by combustion technologies such as air classification, fuel staging, smoke backflows
xgrowing amount.The main purpose of three kinds of technology is all to reduce flame zone temperature, avoids flame to have localized hyperthermia district, reduces thermodynamics amount of nitrogen oxides.Flame zone temperature is lower, and thermodynamics formation of nitrogen oxides is lower.But along with the reduction of flame zone temperature, the stability of flame combustion also decreases, very easily there is taking off the potential safety hazards such as fiery, flame-out.Current low NO
xburner ubiquity poor stability,, especially at the initial stage of going into operation or running on the lower load, very easily there is de-fire, flame-out phenomenon in the problem that antijamming capability is not strong.Need to invent a kind of burner that stabilizes the flame that utilizes fuel staging, smoke backflow technology, improve the stability of cold flame.Improve the security of furnace operation.
Utility model content
In order to overcome traditional low NO
xthe above-mentioned shortcoming of burner, realization can reduce the existence of flame combustion high-temperature region, object that again can smooth combustion, the application provides the low NO of novel stabilising flame for a kind of petroleum chemical industry tubular heater
xburner, relies on the unique layout of burner fuel spray gun and the special structure form of refractory brick, burner flame combustion zone is widened to the prolonging combustion reaction time.Meanwhile, the application's burner utilizes refractory brick and steady flame plate to form flue gas recirculation, and the flame stabilization ring that utilizes refractory brick special construction to form, and makes combustion flame more stable.
The utility model completes the technical scheme that its foregoing invention object takes:
The utility model gathers fuel staging technology, flue gas recirculating technique by the unique texture of self, utilizes steady flame plate and unique firebrick structure to improve combustion stability simultaneously, thereby realizes NOx low emission, the goal of the invention of burning high stability.
A kind of low NO that stabilizes the flame of the present utility model
xburner, it is arranged in the burner hearth 15 of tube furnace, and it comprises cylindrical shell 2, refractory brick 6, Gas spray gun 4, altar lamp 3, and described refractory brick 6 is positioned at described cylindrical shell 2 tops, the inner formation passage of described refractory brick 6 is that quirk 14 and this quirk 14 are concentric with cylindrical shell 2, it is characterized in that:
Every Gas spray gun 4 comprises supervisor 16, supervisor's gas tip 8, branched pipe 5, branched pipe gas tip 7;
Described supervisor 16 is straight tube, and its bottom is by passing in cylindrical shell 2, and its top is passed through by described refractory brick 6 peripheries, and this supervisor's 16 top reaches in described burner hearth 15, and described supervisor's 16 top connects described supervisor's gas tip 8;
Described supervisor 16 punishes out connecting tube at described refractory brick 6 bottom positions and connects described branched pipe 5, parallel to each other and branched pipe 5 is in the direction setting straight up of the interior edge of described quirk 14 with branched pipe 5 for described supervisor 16, and described branched pipe 5 tops connect described branched pipe gas tip 7;
The height of described supervisor's gas tip 8, higher than the height of described branched pipe gas tip 7, makes to be responsible for gas tip 8 and burns stage by stage with branched pipe gas tip 7 and combustion air.
It is 90 degree elbows that connecting tube is punished out in refractory brick 6 bottoms described in described supervisor 16;
Between described branched pipe 5 and described refractory brick 6 inwalls, spacing is 5～10mm;
Between described supervisor's gas tip 8 tops and refractory brick 6 tops, distance is 20mm;
The height of described supervisor's gas tip 8 is higher than the height 60～150mm of described branched pipe gas tip 7.
The fuel of branched pipe gas tip 7 ejections goes out port recess 10 places at refractory brick 6 and forms gas whirlpool.Guarantee that high-temperature flue gas can be by the refractory brick 6 vertical through holes 12 of outlet and horizontal through hole 13 ejections, the secondary fuel of supervisor's gas tip 8 ejections of igniting.Promote flame holding.
Along cylindrical shell 2 and refractory brick 6 peripheries, 3～4 Gas spray guns 4 are set.
Described cylindrical shell 2 connection air channel, bottom butterfly valves 1, described air channel butterfly valve 1 is connected with described cylindrical shell 2 inside and forms inner passage as combustion air passage 19.
The combustion air of burner cylindrical shell 2 of flowing through enters quirk 14 by combustion air passage 19.
The top exit of described refractory brick 6 arranges nosing 11 along its inner periphery, and the internal diameter of described nosing 11 is less than described quirk 14 diameters, and described nosing 11 belows arrange groove 10 along refractory brick inner periphery.
In described refractory brick 6, described groove 10 evenly arranges horizontal through hole 13 along its inner periphery, the vertical through hole 12 connecting with above-mentioned horizontal through hole 13 correspondence position settings and each horizontal through hole 13 in described nosing 11.
Described groove 10 evenly arranges 6～8 horizontal through hole 13 along its inner periphery, and in described nosing 11, vertically through hole 12 quantity are identical with horizontal through hole 13 quantity.
The periphery setting of described refractory brick 6 connects the groove 18 to bottom by top, the quantity of described groove 18 is identical with the quantity of Gas spray gun 4, the supervisor 16 of Gas spray gun 4 is positioned at described groove 18, the top of each groove 18 arranges breach 20, the lower edge of described breach 20 is positioned at groove, and edge, below 10 and both sides is vertical with groove 10, and supervisor's gas tip 8 is positioned at described breach 20 places.
Described cylindrical shell 2 described quirk 14 middle parts, top arrange steady flame plate 9, and described steady flame plate 9 is a circular porous plate, and it keeps concentric with cylindrical shell 2;
Described steady flame plate 9 utilizes locking nut 21 to be fixed on quirk 14 centers by screw rod 22;
Described burner cylindrical shell 2 upper interior arrange fixed support plate 23, and three fixed support plates 23 are preferably set, and described screw rod 22 welds to be fixed on cylindrical shell 2 tops with described fixed support plate 23.
The bottom of described cylindrical shell is base plate 17, and described altar lamp 3 bottoms are vertically arranged on described base plate 17, in the quirk 14 of its top in described refractory brick 6.
By above structure, can be found out, the utility model burner adopts fuel staging: branched pipe 5 is positioned at quirk 14, and branched pipe gas tip 7 height in end are lower than supervisor's gas tip 8.Branched pipe gas tip 7 ejection gas mix with combustion air in advance, oxygen-excess combustion.Excessive air can reduce the temperature of fuel combustion.Supervisor's gas gun shower nozzle 8 is arranged in refractory brick 6 quirk 14 peripheries, directly sprays into burner hearth 15, above refractory brick 6, with combustion air mixed combustion, lags behind the fuel combustion of branched pipe gas tip 7 ejections.Said process is the burning stage by stage of fuel, has effectively reduced the ignition temperature of flame region, has suppressed thermodynamics NO
xformation.
The inner flue gas recirculation of burner.The circular steady flame plate of porous 9 tops at refractory brick 6 quirk 14 centers form a negative pressuren zone under the high velocity fuel effect of branched pipe gas tip 7 ejections, the high-temperature flue gas of burning and combustion air form a recirculating zone above steady flame plate 9, flame root has obtained preheating, more be conducive to fuel and reach ignition point, burn more stable.The flue gas of burning is introduced into flame zone again simultaneously, has reduced the partial pressure of oxygen of burner.The adiabatic temperature that has suppressed flame combustion.Avoid forming localized hyperthermia district in quirk 14.
The outside flue gas recirculation of burner.High flake hearth-tapping 15 furnace bottom refractory liner 24 planar sections of burner refractory brick 6 have three or four breach.Each supervisor's gas tip 8 stretches out refractory brick 6, and supervisor's gas tip 8 is in refractory brick 6 indentation, there.The gas of supervisor's gas tip 8 ejections is introduced the flue gas in burner hearth 15 in quirk 14, forms outside flue gas recirculation.
Due to smoke backflow effect, combustion flame temperature is low compared with conventional burners, and combustion flame temperature is more low is more unfavorable for fuel combustion, and then combustion stability is affected.In order to improve flame holding, as mentioned above, refractory brick 6 adopts quirk 14 exit special constructions: quirk 14 outlets are inside nosing 11, and its outlet internal diameter is less than quirk 14 diameters.Outlet nosing 11 belows fluted 10, groove 10 internal circumference uniform 6 or 8 penetrability horizontal through hole 13, on outlet nosing 11 upper surfaces, there are 6 or 8 vertical through holes 12 of penetrability in the position of corresponding horizontal through hole 13, and vertically through hole 12 connects mutually with horizontal through hole 13.
The fuel of branched pipe gas tip 6 ejections is in the interior premature combustion of quirk 14.Refractory brick 6 outlet nosings 11 go out interruption-forming one throat structure, the high-temperature flue gas of quirk 14 interior burnings can be by refractory brick 6 outlet nosing 11 heating, make refractory brick 6 become a heat carrier, guarantee that fuel arrives refractory brick 6 exits and can reach ignition point, avoid fuel combustion unstable, and occur de-fire, flame-out phenomenon.High-temperature flue gas connects outwards ejection by the vertical through hole 12 at refractory brick 6 outlet nosing 11 places mutually with horizontal through hole 13 simultaneously, the fuel of uniform supervisor's gas tip 8 ejection of preheating, refractory brick 6 quirk 14 outsides of igniting, makes supervisor's gas tip 8 of burner quirk 14 outsides also can smooth combustion.
As mentioned above, between branched pipe 5 and refractory brick 6 inwalls, spacing is 5～10mm.Branched pipe 5 branched pipe gas tips 7 are placed in the inside quirk 14 of refractory brick 6, supervisor 16 and supervisor's gas tip 8 are placed in quirk 14 outsides, the fuel of branched pipe gas tip 7 ejections contacts with combustion air in advance in quirk 14, before arriving refractory brick 6 outlets, takes fire.The hot flue gas of burning is in refractory brick 6 outlet nosing 11 lower grooves 10 formation recirculating zones, place, and recirculating zone flue gas is by vertical through hole 12 and horizontal through hole 13 ejection refractory brick, and the fuel gas of preheating supervisor's gas tip 8 ejections of igniting, forms fuel-staged combustion.Branched pipe gas tip 7 Main Functions stabilize the flame.Supervisor's gas tip 8 is main combustion flames.Its stability needs branched pipe gas tip 7 to maintain.Supervisor's gas tip 8 is mainly determined by the character of fuel gas with the difference in height of branched pipe gas tip 7, when hydrogen content is low in fuel, be responsible for gas tip 8 little with the difference in height of branched pipe gas tip 7, when hydrogen content is high in fuel, be responsible for gas tip 8 large with the difference in height of branched pipe gas tip 7.When in fuel, the slow gas content of the burning velocity such as methane is large, supervisor's gas tip 8 is large with the difference in height of branched pipe gas tip 7.
The utility model burner is compared with conventional burners, and peak flame temperature can reduce by 200 ℃ of left and right, NO
xgrowing amount can reduce 60%～70%, reaches below 50ppm, has reduced operating cost, is a kind of energy-saving and environmental protection, novel burner efficiently of integrating.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model burner.
Fig. 2 is the structural representation of the utility model burner refractory brick.
Description of reference numerals:
1. air channel butterfly valve, 2. cylindrical shell, 3. altar lamp, 4. Gas spray gun, 5. branched pipe, 6. refractory brick, 7. branched pipe gas tip, 8. supervisor's gas tip, 9. steady flame plate, 10. groove, 11. nosings, 12. vertical through hole 13. horizontal through hole, 14. quirks, 15. burner hearths, 16. supervisors, 17. base plates, 18. grooves, 19. combustion air passages, 20. breach, 21. locking nuts, 22. screw rods, 23. fixed support plates, 24. furnace bottom refractory liners.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further described, but embodiment of the present utility model is not limited to this.
The low NO of a kind of novel stabilising flame of the present utility model
xburner, burner is divided into air channel butterfly valve 1, cylindrical shell 2, refractory brick 6, Gas spray gun 4, altar lamp 3, steady flame plate 9 six parts formations.
Burner air channel butterfly valve 1 is connected with cylindrical shell 2, and inner passage is combustion air passage 19.Refractory brick 6 is placed on cylindrical shell 2 tops, and the inner quirk 14 of refractory brick 6 keeps concentric with cylindrical shell, and the combustion air of the burner cylindrical shell 2 of flowing through enters quirk 14, and there is a steady flame plate 9 cylindrical shell 2 tops, and it is a circular porous plate.Steady flame plate 9 keeps concentric with cylindrical shell 2, is positioned at quirk 14 middle parts.Burner Gas spray gun 4 can be divided into three or four.Every Gas spray gun 4 consists of 16 and branched pipes 5 of a supervisor and supervisor's gas tip 8, branched pipe gas tip 7, supervisor 16 is a straight tube, install and pass the base plate 17 of burner cylindrical shell 2, and by refractory brick 6 circumferential perimeter grooves 18, stretch out refractory brick 6 to burner hearth 15 always.Branched pipe 5 is supervisor 16, to approach refractory brick 6 places, bottom to separate from being responsible for 16, connects 90 degree elbows and turns, then straight up.Supervisor 16 is parallel with branched pipe 5.Branched pipe 5 is positioned at quirk 14, and branched pipe gas tip 7 height of branched pipe 5 ends are lower than supervisor's gas tip 8.Supervisor's gas gun shower nozzle 8 is arranged in refractory brick 6 quirk 14 peripheries, directly stretches into burner hearth 15.
Altar lamp 3 is arranged on the base plate 17 of cylindrical shell 2, vertically installs, in the quirk 14 of its top in refractory brick 6.
Burner cylindrical shell 2 top refractory brick 6 are cylinder-like structure.Refractory brick 6 belows are gradual shrinkage entrance.Above refractory brick 6, quirk 14 exits adopt special construction: quirk 14 outlets have inwardly outstanding nosing 11 of an annular, and nosing 11 outlet internal diameters are less than quirk 14 diameters.There is an annular groove 10 along circumference outlet nosing 11 belows.Groove 10 internal circumference uniform 6 or 8 penetrability horizontal through hole 13.On outlet nosing 11 upper surfaces, the position of corresponding horizontal through hole 13 has 6 or 8 vertical through holes 12 of penetrability mutually to connect with horizontal through hole 13.
Refractory brick 6 peripheral uniform three or four are for installing the supervisor's 16 of Gas spray gun 4 groove 18, and the number of groove 18 is identical with the number of spray gun 4.
High flake hearth-tapping 15 furnace bottom refractory liner 24 planar sections of burner refractory brick 6 have three or four breach 20, and each supervisor's gas tip 8 is in breach 20 places, and breach quantity is identical with spray gun 4 quantity.
Breach 20, vertical through hole 12 are evenly distributed on refractory brick 6 with horizontal through hole 13.
The circular steady flame plate of porous 9 tops at refractory brick 6 quirk 14 centers form a negative pressuren zone under the high velocity fuel effect of branched pipe gas tip 7 ejections, the high-temperature flue gas of burning and combustion air form a recirculating zone above steady flame plate 9, flame root has obtained preheating, more be conducive to fuel and reach ignition point, burn more stable.The flue gas of burning is introduced into flame zone again simultaneously, has reduced the partial pressure of oxygen of burner, has suppressed the adiabatic temperature of flame combustion, avoids forming localized hyperthermia district in quirk.
The gas of supervisor's gas tip 8 ejections is introduced the flue gas in burner hearth 15 in quirk 14, forms outside flue gas recirculation.Therefore combustion flame temperature is low compared with conventional burners, the low combustion stability that affects of combustion flame temperature.
In order to improve flame holding, the fuel of branch's gas tip 7 ejections is in the interior premature combustion of quirk 14.Refractory brick 6 outlet nosings 11 go out interruption-forming one throat structure, and the high-temperature flue gas of quirk 14 interior burnings can, by refractory brick 6 outlet nosing 11 heating, make refractory brick 6 become a heat carrier.Guarantee that fuel arrives refractory brick 6 exits and can reach ignition point, avoid fuel combustion unstable, occur de-fire, flame-out phenomenon.High-temperature flue gas connects outwards ejection by the vertical through hole 12 at refractory brick 6 outlet nosing 11 places mutually with horizontal through hole 13 simultaneously, the fuel of supervisor's gas tip 8 ejections that the quirk 14 of preheating, the refractory brick 6 that ignites is outside uniform, makes supervisor's gas tip 8 of burner quirk 14 outsides also can smooth combustion.
By reference to the accompanying drawings, preferred embodiment of the present utility model is further described:
Embodiment 1
As illustrated in fig. 1 and 2, a kind ofly stabilize the flame low NO
xburner, it is arranged in the burner hearth 15 of tube furnace, and it comprises cylindrical shell 2, refractory brick 6, Gas spray gun 4, altar lamp 3, and described refractory brick 6 is positioned at described cylindrical shell 2 tops, the inner formation passage of described refractory brick 6 is that quirk 14 and this quirk 14 are concentric with cylindrical shell 2, it is characterized in that:
Every Gas spray gun 4 comprises supervisor 16, supervisor's gas tip 8, branched pipe 5, branched pipe gas tip 7;
Described supervisor 16 is straight tube, and its bottom is by passing in cylindrical shell 2, and its top is passed through by described refractory brick 6 peripheries, and this supervisor's 16 top reaches in described burner hearth 15, and described supervisor's 16 top connects described supervisor's gas tip 8;
Described supervisor 16 punishes out connecting tube at described refractory brick 6 bottom positions and connects described branched pipe 5, parallel to each other and branched pipe 5 is in the direction setting straight up of the interior edge of described quirk 14 with branched pipe 5 for described supervisor 16, and described branched pipe 5 tops connect described branched pipe gas tip 7;
The height of described supervisor's gas tip 8, higher than the height of described branched pipe gas tip 7, makes to be responsible for gas tip 8 and burns stage by stage with branched pipe gas tip 7 and combustion air.
It is 90 degree elbows that connecting tube is punished out in refractory brick 6 bottoms described in described supervisor 16;
Between described branched pipe 5 and described refractory brick 6 inwalls, spacing is 5～10mm; Between described supervisor's gas tip 8 tops and refractory brick 6 tops, distance is 20mm; The height of described supervisor's gas tip 8 is higher than the height 60～150mm of described branched pipe gas tip 7.
The fuel of branched pipe gas tip 7 ejections goes out port recess 10 places at refractory brick 6 and forms gas whirlpool.Guarantee that high-temperature flue gas can be by the refractory brick 6 vertical through holes 12 of outlet and horizontal through hole 13 ejections, the secondary fuel of supervisor's gas tip 8 ejections of igniting.Promote flame holding.
In the present embodiment, along cylindrical shell 2 and refractory brick 6 peripheries, 4 Gas spray guns 4 are set.
Described cylindrical shell 2 connection air channel, bottom butterfly valves 1, described air channel butterfly valve 1 is connected with described cylindrical shell 2 inside and forms inner passage as combustion air passage 19.
The combustion air of burner cylindrical shell 2 of flowing through enters quirk 14 by combustion air passage 19.
The top exit of described refractory brick 6 arranges nosing 11 along its inner periphery, and the internal diameter of described nosing 11 is less than described quirk 14 diameters, and described nosing 11 belows arrange groove 10 along refractory brick inner periphery.
In described refractory brick 6, described groove 10 evenly arranges horizontal through hole 13 along its inner periphery, the vertical through hole 12 connecting with above-mentioned horizontal through hole 13 correspondence position settings and each horizontal through hole 13 in described nosing 11.In the present embodiment, described groove 10 evenly arranges 8 horizontal through hole 13 along its inner periphery, and in described nosing 11, vertically through hole 12 quantity are identical with horizontal through hole 13 quantity.
The periphery setting of described refractory brick 6 connects the groove 18 to bottom by top, the quantity of described groove 18 is identical with the quantity of Gas spray gun 4,4 grooves 18 are set in the present embodiment, the supervisor 16 of Gas spray gun 4 is positioned at described groove 18, the top of each groove 18 arranges breach 20, the lower edge of described breach 20 is positioned at groove, and edge, below 10 and both sides is vertical with groove 10, and supervisor's gas tip 8 is positioned at described breach 20 places.
Described cylindrical shell 2 described quirk 14 middle parts, top arrange steady flame plate 9, and described steady flame plate 9 is a circular porous plate, and it keeps concentric with cylindrical shell 2; Described steady flame plate 9 utilizes locking nut 21 to be fixed on quirk 14 centers by screw rod 22; Described burner cylindrical shell 2 upper interior arrange fixed support plate 23, and described screw rod 22 welds to be fixed on cylindrical shell 2 tops with described fixed support plate 23.
The bottom of described cylindrical shell is base plate 17, and described altar lamp 3 bottoms are vertically arranged on described base plate 17, in the quirk 14 of its top in described refractory brick 6.
Claims (10)
1. one kind stabilizes the flame low NO
xburner, it is arranged in the burner hearth (15) of tube furnace, it comprises cylindrical shell (2), refractory brick (6), Gas spray gun (4), altar lamp (3), described refractory brick (6) is positioned at described cylindrical shell (2) top, the inner formation of described refractory brick (6) passage is that quirk (14) and this quirk (14) are concentric with cylindrical shell (2), it is characterized in that:
Every Gas spray gun (4) comprises supervisor (16), supervisor's gas tip (8), branched pipe (5), branched pipe gas tip (7);
Described supervisor (16) is straight tube, its bottom is by passing in cylindrical shell (2), its top is passed through by described refractory brick (6) periphery, and this supervisor's (16) top reaches in described burner hearth (15), and described supervisor's (16) top connects described supervisor's gas tip (8);
Described supervisor (16) punishes out connecting tube at described refractory brick (6) bottom position and connects described branched pipe (5), described supervisor (16) is parallel to each other and branched pipe (5) edge direction setting straight up in described quirk (14) with branched pipe (5), and described branched pipe (5) top connects described branched pipe gas tip (7);
The height of described supervisor's gas tip (8), higher than the height of described branched pipe gas tip (7), makes to be responsible for gas tip (8) and burns stage by stage with branched pipe gas tip (7) and combustion air.
2. according to claim 1ly stabilize the flame low NO
xburner, is characterized in that:
It is 90 degree elbows that connecting tube is punished out in the bottom of refractory brick (6) described in described supervisor (16);
Between described branched pipe (5) and described refractory brick (6) inwall, spacing is 5～10mm;
Between described supervisor's gas tip (8) top and refractory brick (6) top, distance is 20mm;
The height of described supervisor's gas tip (8) is higher than the height 60～150mm of described branched pipe gas tip (7).
3. according to claim 1ly stabilize the flame low NO
xburner, is characterized in that:
Along cylindrical shell (2) and refractory brick (6) periphery, 3～4 Gas spray guns (4) are set.
4. according to claim 1ly stabilize the flame low NO
xburner, is characterized in that:
Described cylindrical shell (2) bottom connection air channel butterfly valve (1), described air channel butterfly valve (1) is connected with described cylindrical shell (2) inside and forms inner passage as combustion air passage (19).
5. according to the low NO that stabilizes the flame described in claim 1 or 4
xburner, is characterized in that:
The top exit of described refractory brick (6) arranges nosing (11) along its inner periphery, and the internal diameter of described nosing (11) is less than described quirk (14) diameter, and described nosing (11) below arranges groove (10) along refractory brick inner periphery.
6. according to claim 5ly stabilize the flame low NO
xburner, is characterized in that:
In described refractory brick (6), described groove (10) evenly arranges horizontal through hole (13) along its inner periphery, the upper vertical through hole (12) connecting with above-mentioned horizontal through hole (13) correspondence position setting and each horizontal through hole (13) of described nosing (11).
7. according to claim 6ly stabilize the flame low NO
xburner, is characterized in that:
Described groove (10) evenly arranges 6～8 horizontal through hole (13) along its inner periphery, and upper vertical through hole (12) quantity of described nosing (11) is identical with horizontal through hole (13) quantity.
8. according to claim 6ly stabilize the flame low NO
xburner, is characterized in that:
The periphery setting of described refractory brick (6) connects the groove (18) to bottom by top, the quantity of described groove (18) is identical with the quantity of Gas spray gun (4), the supervisor (16) of Gas spray gun (4) is positioned at described groove (18), the top of each groove (18) arranges breach (20), the lower edge of described breach (20) is positioned at the following and both sides of groove (10) along vertical with groove (10), is responsible for gas tip (8) and is positioned at described breach (20) and locates.
9. according to claim 1ly stabilize the flame low NO
xburner, is characterized in that:
Described cylindrical shell (2) the described quirk in top (14) middle part arranges steady flame plate (9), and described steady flame plate (9) is a circular porous plate, and it keeps concentric with cylindrical shell (2);
Described steady flame plate (9) utilizes locking nut (21) to be fixed on quirk (14) center by screw rod (22);
Described burner cylindrical shell (2) upper interior arranges fixed support plate (23), and described screw rod (22) welds to be fixed on cylindrical shell (2) top with described fixed support plate (23).
10. according to claim 1ly stabilize the flame low NO
xburner, is characterized in that:
The bottom of described cylindrical shell is base plate (17), and it is upper that described altar lamp (3) bottom is vertically arranged on described base plate (17), in the quirk (14) of its top in described refractory brick (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008824.9U CN203718776U (en) | 2014-01-07 | 2014-01-07 | Combustor with stable flame and low NOx (Nitric Oxide) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008824.9U CN203718776U (en) | 2014-01-07 | 2014-01-07 | Combustor with stable flame and low NOx (Nitric Oxide) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718776U true CN203718776U (en) | 2014-07-16 |
Family
ID=51157922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420008824.9U Expired - Lifetime CN203718776U (en) | 2014-01-07 | 2014-01-07 | Combustor with stable flame and low NOx (Nitric Oxide) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718776U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642116A (en) * | 2016-12-09 | 2017-05-10 | 岳阳钟鼎热工电磁科技有限公司 | Ultralow NOx emission blue flame round gas burner |
| CN107664303A (en) * | 2017-10-09 | 2018-02-06 | 江苏焱鑫科技股份有限公司 | High stability, short flamed low NOx, CO burner |
| CN108019751A (en) * | 2017-11-08 | 2018-05-11 | 扬州高立达科技产业有限公司 | The low NO of ultralow discharged nitrous oxidesxBurner |
| CN110094732A (en) * | 2019-04-02 | 2019-08-06 | 岳阳恒盛石化科技有限公司 | A kind of low NO of high pressure drop high wind speedxThe gas burner of discharge |
| CN110131713A (en) * | 2019-05-31 | 2019-08-16 | 深圳市龙瑞泰兴能源环境科技有限公司 | A kind of flame stabilization, detection device and its control method of disperse formula combustion system |
| CN110375297A (en) * | 2019-08-23 | 2019-10-25 | 岳阳钟鼎热工电磁科技有限公司 | High and low furnace temperature discharges efficiently steady flame gas burner with ultralow NOx, CO |
-
2014
- 2014-01-07 CN CN201420008824.9U patent/CN203718776U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642116A (en) * | 2016-12-09 | 2017-05-10 | 岳阳钟鼎热工电磁科技有限公司 | Ultralow NOx emission blue flame round gas burner |
| CN107664303A (en) * | 2017-10-09 | 2018-02-06 | 江苏焱鑫科技股份有限公司 | High stability, short flamed low NOx, CO burner |
| CN107664303B (en) * | 2017-10-09 | 2024-05-24 | 江苏焱鑫科技股份有限公司 | High stability, short flame low NOx, CO burner |
| CN108019751A (en) * | 2017-11-08 | 2018-05-11 | 扬州高立达科技产业有限公司 | The low NO of ultralow discharged nitrous oxidesxBurner |
| CN108019751B (en) * | 2017-11-08 | 2024-05-31 | 江苏焱鑫科技股份有限公司 | Low NO with ultra low nitrogen oxide emissionsxBurner with a burner body |
| CN110094732A (en) * | 2019-04-02 | 2019-08-06 | 岳阳恒盛石化科技有限公司 | A kind of low NO of high pressure drop high wind speedxThe gas burner of discharge |
| CN110131713A (en) * | 2019-05-31 | 2019-08-16 | 深圳市龙瑞泰兴能源环境科技有限公司 | A kind of flame stabilization, detection device and its control method of disperse formula combustion system |
| CN110131713B (en) * | 2019-05-31 | 2024-05-24 | 深圳市龙瑞泰兴能源环境科技有限公司 | Flame stabilizing and detecting device of dispersion type combustion system and control method thereof |
| CN110375297A (en) * | 2019-08-23 | 2019-10-25 | 岳阳钟鼎热工电磁科技有限公司 | High and low furnace temperature discharges efficiently steady flame gas burner with ultralow NOx, CO |
| CN110375297B (en) * | 2019-08-23 | 2024-03-26 | 岳阳钟鼎热工电磁科技有限公司 | Ultra-low NOx and CO emission flame stabilizing gas burner for high and low furnace temperatures |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203718776U (en) | Combustor with stable flame and low NOx (Nitric Oxide) | |
| CN204063038U (en) | Low NO xflue gas is from return flow burner | |
| CN104964282A (en) | Double-preheating environmental protection combustor for tube heating furnace and applications thereof | |
| CN204478056U (en) | A kind of oil gas associating low-NOx combustor | |
| CN102052677B (en) | Industrial gas burner | |
| CN202419652U (en) | Low-NOx (nitrogen oxides) environment-friendly combustor by means of combinational combustion | |
| CN104266189B (en) | Control method of low-calorific-value gas radiant tube burner | |
| CN104266188A (en) | Gas oxygen-enriched supporting premixed swirl-flow combustion device | |
| CN205480979U (en) | High speed burner that jets of adaptation pluralities of fuel | |
| CN103267288B (en) | Burner | |
| CN101382286B (en) | Air flow circle alternating and equalization injection combustor for stabilizing flame by pre-mixing | |
| CN102424910B (en) | Combustion nozzle for whole hydrogen bell-type annealing furnace, and waste hydrogen introduction and combustion method adopting the same | |
| CN207065568U (en) | A kind of fuel gas with low heat value burner and hot-blast stove | |
| CN204534584U (en) | The two preheating environmental protection burner of a kind of tubular heater | |
| CN202813367U (en) | Stable-flame low-nitrogen oxide (NOx) bottom burner for cracking furnace | |
| CN104132343A (en) | Radiant tube combustor | |
| CN106247319A (en) | A kind of gas industry boiler combustion device and combustion gas hierarchical arrangement method thereof | |
| CN204084375U (en) | Staged Oxygen-enriched Flameless Combustion Gas Burner | |
| CN105271842A (en) | Method for calcining active lime by use of mixed gas in lime sleeve kiln | |
| CN102798129B (en) | Efficient thermal oxidation furnace for low afterburning-amount smoke constant-speed grading reaction | |
| CN204084368U (en) | Low-heat value gas radiant tube burner | |
| CN206037036U (en) | Cyclone burner | |
| CN103115360B (en) | The short flame high temperature industrial combustor of combustion gas | |
| CN108895446B (en) | Odd number circulation ignition high-efficiency energy-saving ultralow NO X Gas burner | |
| CN105042593A (en) | Gas combustion system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
|
| CX01 | Expiry of patent term |