CN102424910B - Combustion nozzle for whole hydrogen bell-type annealing furnace, and waste hydrogen introduction and combustion method adopting the same - Google Patents
Combustion nozzle for whole hydrogen bell-type annealing furnace, and waste hydrogen introduction and combustion method adopting the same Download PDFInfo
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- CN102424910B CN102424910B CN 201110385130 CN201110385130A CN102424910B CN 102424910 B CN102424910 B CN 102424910B CN 201110385130 CN201110385130 CN 201110385130 CN 201110385130 A CN201110385130 A CN 201110385130A CN 102424910 B CN102424910 B CN 102424910B
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Abstract
The present invention relates to a combustion nozzle for a whole hydrogen bell-type annealing furnace, and a waste hydrogen introduction and combustion method adopting the combustion nozzle. The combustion nozzle comprises a combustion chamber, an air distribution disk, a coal gas nozzle, an air duct, a coal gas flowing pipe and a dual-electrode. According to the present invention, the coal gas combustion and the waste hydrogen combustion are integrated in the same combustion nozzle; when the waste hydrogen is introduced, the coal is adopted as the ever-burning flame to ignite the waste hydrogen so as to ensure the safety and the stability of the waste hydrogen combustion; the air is divided into three levels in the air distribution disk to carry out mixing combustion, the coal gas is sprayed by adopting the uniform jet flow distribution on the end surface so as to accelerate the mixing speed of the coal gas, the waste hydrogen and the air, and ensure the stability of the combustion nozzle combusting and the reliability of the flame monitoring; with adopting the high-speed combustion nozzle to carry out the high-speed combustion for the waste hydrogen, the resources are recovered and utilized, the temperature uniformity of the furnace is ensured with the high-speed convective circulation of the flue gas.
Description
Technical field
The present invention relates to the burner technical field, be specifically related to the useless hydrogen burning method that a kind of hydrogen that is applied to will to give up on the full-hydrogen hood-type annealing furnace is introduced the high combustion rate burner of heating mantles burning and adopted it.
Background technology
Full-hydrogen hood-type annealing furnace is a kind of type of furnace of coil of strip being carried out non-oxidizing bright annealing under 100% hydrogen state; pure hydrogen carries out the strong convection circulation as shielding gas in the stove; this type of furnace has the production efficiency height, the product mechanical property is even; the plurality of advantages such as surface smoothness height; at home and abroad a lot of iron and steel enterprises have obtained widely promotion and application, become a kind of type of furnace of running neck and neck with continuous annealing furnace.Hot blow is indispensable link in the Full Hydrogen Bell Type Annealing Furnace annealing process, so-called hot blow be exactly cold rolling coil of strip is later heated under 100% hydrogen in, cause the dew point rising of furnace gas to form oxidizing atmosphere in order to prevent from remaining in the rolling mill compound volatilization of belt steel surface, and the technological measure of the anti-oxidation of taking.The method is that the pure hydrogen of high dew point that will contain rolling mill compound is got rid of, and replenishes the pure hydrogen through purifying again.
For this useless hydrogen that contains rolling mill compound, two kinds of processing modes are arranged usually: a kind of is that it is directly discharged to atmosphere or workshop, and this method does not only meet the requirement of national environmental protection regulation, and is a kind of great waste to fuel source; Another kind method is that cover type furnace heating cover is added the hydrogen burner, by the igniter burner kept burning day and night useless hydrogen that ignites, the useless hydrogen that hot blow is produced reenters heating mantles and burns, although this method can realize the recycling to useless hydrogen, but complete combustion of hydrogen pipeline need to be set, add simultaneously hydrogen burner and igniter burner, the firing system configuration is comparatively complicated.Have the discontinuity characteristics because useless hydrogen produces simultaneously, the adding of hydrogen burner affects the homogeneity of capability distribution between each layer of full-hydrogen hood-type annealing furnace heating mantles, thereby temperature uniformity in the heating mantles is exerted an influence in the firing system configuration.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of full-hydrogen hood-type annealing furnace with burner and adopts its useless hydrogen to introduce combustion method, can realize the high velocity combustion to the useless hydrogen of hot blow, when useless hydrogen is recycled, realization is to the optimization of firing system capability distribution, simplify the firing system configuration, improve the fire box temperature homogeneity.
The present invention solves the problems of the technologies described above the technical scheme that adopts to be:
The full-hydrogen hood-type annealing furnace burner mainly comprises combustion chamber, air air-distributing disc, gas jet, air lead, air housing, coal gas housing, Gas Flow siphunculus, two electrodes, electrode suppor, burner nozzle support; The combustion chamber is positioned at the burner exit end, is the cylindric cylinder of horizontal positioned, and exit diameter is contraction-like with respect to the entrance end diameter; Gas jet pass the air air-distributing disc and be assemblied in the combustion chamber entrance end after air-distributing disc is fixedly connected with; The entrance end of combustion chamber is fixed in the exit end of air lead, and the entrance end of air lead connects the air housing, and air housing entrance end links to each other with the coal gas housing, and the housing vertical direction is provided with air intlet; Coal gas housing horizontal direction exit end is connected with the air housing, and the vertical direction of coal gas housing arranges gas inlet, and coal gas housing entrance end is horizontal end face; The Gas Flow siphunculus passes from the air lead center, and exit end and gas jet are fixed, and entrance end is connected and fixed on the coal gas housing; Two electrodes passes along the electrode mounting hole of coal gas housing, by the electrode suppor guiding, and is positioned air air-distributing disc end; Electrode suppor is positioned at the air lead end near the air-distributing disc place; Burner nozzle support is positioned at the Gas Flow siphunculus near combustion chamber side, adopts the A-frame welded construction, is bolted on the Gas Flow siphunculus; It is characterized in that: also be provided with useless hydrogen pipeline, useless hydrogen pipeline stretches in the combustion chamber after coal gas housing and Gas Flow siphunculus center pass.
Press such scheme, the air air-distributing disc adopts the high temperature steel numerical control machine-shaping, on the air-distributing disc along a circumferential uniform circle inclined via-hole, described through hole by the combustion chamber importer to Way out toward center, combustion chamber deflection; The circumferential also uniform circle chute type breach of air distribution limit section, the radially notch of each chute type breach is all simultaneously along pointer or the counterclockwise slope that forms of while.
Press such scheme, gas jet adopts the high temperature steel numerical control machine-shaping, and the gas jet sidepiece has a circle coal gas annular distance, and coal gas sprays by annular distance and mixes in the combustion chamber with three grades of combustion airs after burned chamber Bian Bi breaks up; Center, gas jet end has useless hydrogen pore, and useless hydrogen pipeline passes from useless hydrogen pore and stretches into will give up the combustion chamber hydrogen and air, coal gas and be blended in the combustion chamber internal combustion; Described gas jet and the continuous welding of Gas Flow siphunculus are fixed, and Gas Flow siphunculus entrance end is provided with the pipe connecting of adjustable length.
By technique scheme, useless hydrogen pipeline entrance end adopts threeway to connect, be useless hydrogen import with the useless hydrogen pipeline port vertically upward of level, one end of horizontal port is provided with the plug with the pressure-tapping nozzle hole, the other end is divided into two sections by entering out, one section is connected with the coal gas housing, and another section stretches in the combustion chamber after the useless hydrogen pipeline open holes of coal gas housing and Gas Flow siphunculus center pass.
Press such scheme, whole SIC moulding, 1400 ℃ of the heatproofs of adopting in combustion chamber; The combustion chamber imports and exports diameter and length is determined by burner power and the useless hydrogen amount size of setting burning.
Press such scheme, air lead is welding structural element, and the end is provided with pressure ring and mounting seat, and afterbody is provided with mounting flange, and the middle conduit and mounting seat and ring flange continuous welding of adopting fixed.
Press such scheme, the air housing is square cylinder, the moulding of whole employing carbon steel precision casting, and housing horizontal direction two ends are respectively equipped with air lead mounting flange and coal gas housing mounting flange, and the housing vertical direction is provided with the air intlet flange.
Press such scheme, the coal gas housing adopts the moulding of precision casting post-treatment, and coal gas housing horizontal direction exit end is provided with the square companionflange that is connected with the air housing, and the companionflange face is provided with the gas pipe open holes; The vertical direction of coal gas housing arranges gas inlet, and gas inlet is internal thread interface, and the inner vertical channel that adopts is communicated with the gas pipe open holes.
Press such scheme, described two electrodes can be realized automatic ignition and flame monitoring function, penetrates from coal gas housing top electrode hole,, passes from air-distributing disc top electrode open holes successively by air housing, air lead and electrode suppor along Gas Flow siphunculus both sides; The sparking position of electrode tip is positioned at the air-distributing disc end, near sparking post position on the air-distributing disc.
Adopt the useless hydrogen of above-mentioned burner to introduce combustion method, it is characterized in that comprising following steps:
(1) burner is installed on the bell-type perhydro annealing furnace heating mantles, then connects respectively coal gas, hydrogen and air line and each pipeline valve of burner;
When (2) passing into without useless hydrogen, only this burner infeed coal gas and air are carried out the high velocity combustion of coal gas and air mixed;
(3) after useless hydrogen passes into, the coal gas infeed amount of burner is turned down, coal gas do ever-burning flame use ignite pass into useless hydrogen after, coal gas, useless hydrogen and air are after the burning of combustion chamber internal mix, flue gas is done the high speed convection circulation from the ejection of combustion chamber inner high speed in heating mantles inside;
In above-mentioned steps (2) and (3), combustion air is divided into three grades at air air-distributing disc place, and primary air forms the intersection high-speed jet by inclined via-hole circumferential uniform on the air air-distributing disc, and coal gas and useless hydrogen are broken up, and accelerates empty combustion gas mixing; Secondary air forms high-speed rotational by the circumferential uniform chute type breach of air air distribution web section, accelerates the mixture strength of air and coal gas and useless hydrogen; Tertiary air is adjusted flame profile in the time of the cooling combustion chamber by the ejection of the circular clearance between air air-distributing disc and combustion chamber;
The annular distance of coal gas by gas jet sprays and mixes in the combustion chamber with three grades of combustion airs after burned chamber Bian Bi breaks up; Useless hydrogen to the gas jet end, is blended in combustion chamber internal combustion with air, coal gas by Pipeline transport.
Adopt technique scheme, have following beneficial effect:
1, can either reclaim the useless hydrogen of hot blow, utilize high combustion rate burner that useless hydrogen is carried out high velocity combustion, when recycling resource, can by the circulation of flue gas high speed convection, guarantee the fire box temperature homogeneity again.
2, coal gas, useless hydrogen burning are integrated in the same burner, because the generation of useless hydrogen has the discontinuity characteristics, when passing into without useless hydrogen, " coal gas+useless hydrogen " high combustion rate burner participates in firing system control as common burner; When useless hydrogen passed into, coal gas was done ever-burning flame and is used, and the useless hydrogen that ignites is guaranteed security and the stability of useless hydrogen burning
3, unique air air-distributing disc and gas jet design, air is divided into three grades at the air-distributing disc place and carries out mixed firing, coal gas adopts the uniform jet ejection of end face, has accelerated the mixing velocity of coal gas, useless hydrogen and air, guarantees the stability of burner combustion and the reliability of flame ignition and flame monitoring.
Description of drawings:
Fig. 1 is the nozzle structure synoptic diagram (sectional view) of the preferred embodiment of the present invention
Fig. 2 is that the B of Fig. 1 is to the side-looking enlarged view;
Fig. 3 is air air-distributing disc and the gas jet assembling amplification assumption diagram (skeleton view) among Fig. 1;
Fig. 4 be among Fig. 1 gas line unit construction enlarged view;
Fig. 5 is burner and the bell-type perhydro annealing furnace heating mantles mounting structure synoptic diagram (stereographic map) of the preferred embodiment of the present invention.
Embodiment:
The invention will be further described below in conjunction with embodiment and accompanying drawing, but do not limit the present invention.
Fig. 1-4 is depicted as according to full-hydrogen hood-type annealing furnace of the invention process burner internal structure, it comprises combustion chamber 1, combustion chamber 1 is the horizontal positioned tubular column, the whole SIC pottery casting that adopts, temperature resistant grade can reach 1400 ℃, and coal gas, useless hydrogen and air are finished mixing, igniting and combustion processes in combustion chamber 1.Combustion chamber 1 exit end diameter slightly shrinks, and entrance end is provided with the installation pressing plate.Combustion chamber 1 imports and exports diameter and length is determined according to burner power and the useless hydrogen amount size of designed combustion.Air air-distributing disc 2 adopts the high temperature steel numerical control machine-shaping, is installed on the entrance end of combustion chamber 1, and the installation site of air air-distributing disc 2 is slightly adjusted according to the length of flame and shape.Combustion air is divided into three grades at air air-distributing disc 2 places, primary air forms the intersection high-speed jet by a circle inclined via-hole (as shown in Figure 3) circumferential uniform on the air air-distributing disc 2, coal gas and useless hydrogen are broken up, accelerate empty combustion gas mixing, described through hole by the combustion chamber importer to Way out toward center, combustion chamber deflection; Secondary air forms high-speed rotational by the circumferential uniform circle chute type breach (as shown in Figure 3) of air air-distributing disc 2 limit sections, accelerate the mixture strength of air and coal gas and useless hydrogen, the radially notch of each chute type breach all forms the slope along pointer or while simultaneously counterclockwise; Tertiary air sprays by the circular clearance of 1 of air air-distributing disc 2 and combustion chamber, in the time of cooling combustion chamber 1 flame profile is adjusted; Gas jet 3 is welded and fixed with air air-distributing disc 2, gas jet 3 adopts the high temperature steel numerical control machine-shaping, sidepiece (as shown in Figure 4) has a circle coal gas annular distance, coal gas is broken up rear and three grades of combustion air 1 interior mixed firings in the combustion chamber by the annular distance ejection by combustion chamber 1 limit wall, center, gas jet 3 end has useless hydrogen pore, useless hydrogen is delivered to gas jet 3 ends by the useless hydrogen pipeline 11 that is arranged in the Gas Flow siphunculus 4, with 1 mixed firing in the combustion chamber of air, coal gas.
Gas jet 3 is fixed with 4 continuous weldings of Gas Flow siphunculus, Gas Flow siphunculus 4 entrance ends are provided with the pipe connecting 5 of adjustable length, capable of regulating circulating tube entire length, thereby regulate air air-distributing disc 2 and gas jet 3 position in 1 in the combustion chamber, make combustion gas, useless hydrogen and air mixed distance more reasonable.Pipe connecting 5 two ends are the internal and external threads interface, are tightly connected with coal gas housing 8 and Gas Flow siphunculus 4 respectively.Gas Flow siphunculus 4 passes from air lead 6 centers, and air lead 6 is the tubular welding structural element, and entrance end is connected with air housing 7 by the air lead mounting flange, and exit end is fixing with combustion chamber 1 by snap ring and gland.Air housing 7 is square cylinder, the moulding of whole employing carbon steel precision casting, and housing horizontal direction one end arranges the air mounting flange, the coal gas housing mounting flange that the other end setting links to each other with coal gas housing 8, the housing vertical direction is provided with air intlet flange 9.Air housing 7 is connected and fixed by coal gas housing mounting flange and coal gas housing 8 bolts.Coal gas housing 8 adopts the moulding of precision casting post-treatment, horizontal direction one end is provided with the square companionflange that is connected with the coal gas housing mounting flange of air housing 7, the companionflange face is provided with the gas pipe open holes, the vertical direction of coal gas housing 8 arranges gas inlet 10, gas inlet 10 is internal thread interface, and the inner vertical channel that adopts is communicated with the gas pipe open holes.Coal gas housing 8 the other ends are horizontal end face, are provided with two electrodes hole, useless hydrogen pipeline open holes, peep hole open holes, earth stud open holes and pressure-tapping nozzle open holes.Useless hydrogen pipeline 11, two electrodes 13 pass respectively coal gas housing 8 and are fixed thereon.Useless hydrogen pipeline 11 passes from coal gas housing 8 inner gas flues, is inserted in the combustion chamber 1 along Gas Flow siphunculus 4 centers.Useless hydrogen pipeline 11 entrance ends adopt threeway to connect, be useless hydrogen import 12 with useless hydrogen pipeline 11 port vertically upward, one end of horizontal port is provided with the plug with the pressure-tapping nozzle hole, the other end is divided into two sections by entering out, one section is connected with coal gas housing 8 by hickey, and another section stretches in the combustion chamber 1 after coal gas housing 8 and Gas Flow siphunculus 4 centers pass.
Fig. 4 has expressed two electrodes 13 and has penetrated from coal gas housing 8 top electrode holes,, passes from air air-distributing disc 2 top electrode open holess successively by air housing 7, air lead 6 and electrode suppor 14 along Gas Flow siphunculus 4 both sides.Electrode suppor 14 is positioned at Gas Flow siphunculus 4 middle parts, and electrode suppor 14 is provided with electrode catheter, and two electrodes 13 is had guiding and positioning action.Burner nozzle support 15 is positioned at Gas Flow siphunculus 4 near 1 position, combustion chamber, adopts the A-frame welded construction, is bolted on Gas Flow siphunculus 4.
Fig. 5 provided full-hydrogen hood-type annealing furnace with burner on the bell-type perhydro annealing furnace installation and the embodiment of use, in this embodiment, " coal gas+useless hydrogen " full-hydrogen hood-type annealing furnace is fixed on the cover type furnace heating cover furnace shell 17 with the air mounting flange of high combustion rate burner 16 by air housing 7,17 of air mounting flange and furnace shells add gasket, and connect air, coal gas interface; The useless hydrogen that the full-hydrogen hood-type annealing furnace inner cover is produced is drawn with the useless hydrogen interface of burner by useless hydrogen conduit and is connected.
Be equipped with magnetic valve 20 and hand valve 21 on the useless hydrogen pipeline 18 of burner 16, the gas line 19, use as useless hydrogen pipeline 18 and gas line 19 automatic shutters; The air line 22 of burner 16 is established 21 1 on hand valve, and burner 16 adopts automatic ignition and flame monitoring.When passing into without useless hydrogen, magnetic valve 20 cuts out on the useless hydrogen pipeline 18, magnetic valve is opened on the gas line 19, air, coal gas pass into burner, burner 16 uses as common high combustion rate burner and participates in burning system of hood-type annealing furnace control, by burner quantity and ability between rational each layer of configuration heating mantles, guarantee that heat capacity is balanced, guarantees the fire box temperature homogeneity.After useless hydrogen produced, magnetic valve 20 was opened on the useless hydrogen pipeline 18, and useless hydrogen passes into, and turned burner 16 coal gas amounts this moment down, and coal gas changes does the ever-burning flame use, is used for igniting in combustion chamber 1 useless hydrogen, guarantees security and the stability of useless hydrogen burning.After useless hydrogen passes into burner, ignited by the coal gas ever-burning flame, finish in the combustion chamber and coal gas, air mixed combustion processes, the high speed convection circulation is done at a high speed ejection of 1 outlet in heating mantles inside from the combustion chamber, cooperates with all the other high combustion rate burners to participate in firing system control.
Above disclosed only is preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalence of therefore doing according to the present patent application claim changes, and still belongs to protection scope of the present invention.
Claims (10)
1. the full-hydrogen hood-type annealing furnace burner mainly comprises combustion chamber, air air-distributing disc, gas jet, air lead, air housing, coal gas housing, Gas Flow siphunculus, two electrodes, electrode suppor, burner nozzle support; The combustion chamber is positioned at the burner exit end, is the cylindric cylinder of horizontal positioned, and exit diameter is contraction-like with respect to the entrance end diameter; Gas jet pass the air air-distributing disc and be assemblied in the combustion chamber entrance end after air-distributing disc is fixedly connected with; The entrance end of combustion chamber is fixed in the exit end of air lead, and the entrance end of air lead connects the air housing, and air housing entrance end links to each other with the coal gas housing, and the housing vertical direction is provided with air intlet; Coal gas housing horizontal direction exit end is connected with the air housing, and the vertical direction of coal gas housing arranges gas inlet, and coal gas housing entrance end is horizontal end face; The Gas Flow siphunculus passes from the air lead center, and exit end and gas jet are fixed, and entrance end is connected and fixed on the coal gas housing; Two electrodes passes along the electrode mounting hole of coal gas housing, by the electrode suppor guiding, and is positioned air air-distributing disc end; Electrode suppor is positioned at the air lead end near the air-distributing disc place; Burner nozzle support is positioned at the Gas Flow siphunculus near combustion chamber side, adopts the A-frame welded construction, is bolted on the Gas Flow siphunculus; It is characterized in that: also be provided with useless hydrogen pipeline, useless hydrogen pipeline stretches in the combustion chamber after coal gas housing and Gas Flow siphunculus center pass.
2. burner according to claim 1 is characterized in that: the air air-distributing disc adopts the high temperature steel numerical control machine-shaping, on the air-distributing disc along a circumferential uniform circle inclined via-hole, described through hole by the combustion chamber importer to Way out toward center, combustion chamber deflection; The circumferential also uniform circle chute type breach of air distribution limit section, the radially notch of each chute type breach is all simultaneously along pointer or the counterclockwise slope that forms of while.
3. burner according to claim 1 and 2, it is characterized in that: gas jet adopts the high temperature steel numerical control machine-shaping, the gas jet sidepiece has a circle coal gas annular distance, and coal gas sprays by annular distance and mixes in the combustion chamber with whole three grades of combustion airs after burned chamber Bian Bi breaks up; Center, gas jet end has useless hydrogen pore, and useless hydrogen pipeline passes from useless hydrogen pore and stretches into will give up the combustion chamber hydrogen and air and coal gas and be blended in the combustion chamber internal combustion; Described gas jet and the continuous welding of Gas Flow siphunculus are fixed, and Gas Flow siphunculus entrance end is provided with the pipe connecting of adjustable length.
4. burner according to claim 3, it is characterized in that: useless hydrogen pipeline entrance end adopts threeway to connect, be useless hydrogen import with the useless hydrogen pipeline port vertically upward of level, one end of horizontal port is provided with the plug with the pressure-tapping nozzle hole, the other end is divided into two sections by entering out, one section is connected with the coal gas housing, and another section stretches in the combustion chamber after the useless hydrogen pipeline open holes of coal gas housing and Gas Flow siphunculus center pass.
5. burner according to claim 4 is characterized in that: the combustion chamber whole SIC of employing moulding, 1400 ℃ of heatproofs; The combustion chamber imports and exports diameter and length is determined by burner power and the useless hydrogen amount size of setting burning.
6. burner according to claim 5, it is characterized in that: air lead is welding structural element, and the end is provided with pressure ring and mounting seat, and afterbody is provided with mounting flange, the middle conduit and mounting seat and ring flange continuous welding of adopting fixed.
7. burner according to claim 6, it is characterized in that: the air housing is square cylinder, the moulding of whole employing carbon steel precision casting, housing horizontal direction two ends are respectively equipped with air lead mounting flange and coal gas housing mounting flange, and the housing vertical direction is provided with the air intlet flange.
8. according to claim 1 and 2 or the described burner of one of 4-7, it is characterized in that: the coal gas housing adopts the moulding of precision casting post-treatment, coal gas housing horizontal direction exit end is provided with the square companionflange that is connected with the air housing, and the companionflange face is provided with the gas pipe open holes; The vertical direction of coal gas housing arranges gas inlet, and gas inlet is internal thread interface, and the inner vertical channel that adopts is communicated with the gas pipe open holes.
9. burner according to claim 8, it is characterized in that: described two electrodes can be realized automatic ignition and flame monitoring function, penetrate from coal gas housing top electrode hole,, pass from air-distributing disc top electrode open holes successively by air housing, air lead and electrode suppor along Gas Flow siphunculus both sides; The sparking position of electrode tip is positioned at the air-distributing disc end, near sparking post position on the air-distributing disc.
10. one kind is adopted the useless hydrogen of one of claim 1-9 described burner to introduce combustion method, it is characterized in that comprising following steps:
(1) burner is installed on the bell-type perhydro annealing furnace heating mantles, then connects respectively coal gas, hydrogen and air line and each pipeline valve of burner;
When (2) passing into without useless hydrogen, only this burner infeed coal gas and air are carried out the high velocity combustion of coal gas and air mixed;
(3) after useless hydrogen passes into, the coal gas infeed amount of burner is turned down, coal gas do ever-burning flame use ignite pass into useless hydrogen after, coal gas, useless hydrogen and air are after the burning of combustion chamber internal mix, flue gas is done the high speed convection circulation from the ejection of combustion chamber inner high speed in heating mantles inside;
In above-mentioned steps (2) and (3), combustion air is divided into three grades at air air-distributing disc place, and primary air forms the intersection high-speed jet by inclined via-hole circumferential uniform on the air air-distributing disc, and coal gas and useless hydrogen are broken up, and accelerates air and combustion gas mixing; Secondary air forms high-speed rotational by the circumferential uniform chute type breach of air air distribution web section, accelerates the mixture strength of air and coal gas and useless hydrogen; Tertiary air is adjusted flame profile in the time of the cooling combustion chamber by the ejection of the circular clearance between air air-distributing disc and combustion chamber;
The annular distance of coal gas by gas jet sprays and mixes in the combustion chamber with whole three grades of combustion airs after burned chamber Bian Bi breaks up; Useless hydrogen to the gas jet end, is blended in combustion chamber internal combustion with air, coal gas by Pipeline transport.
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| CN 201110385130 CN102424910B (en) | 2011-11-28 | 2011-11-28 | Combustion nozzle for whole hydrogen bell-type annealing furnace, and waste hydrogen introduction and combustion method adopting the same |
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| CN 201110385130 CN102424910B (en) | 2011-11-28 | 2011-11-28 | Combustion nozzle for whole hydrogen bell-type annealing furnace, and waste hydrogen introduction and combustion method adopting the same |
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| CN102679353A (en) * | 2012-05-05 | 2012-09-19 | 中冶南方(武汉)威仕工业炉有限公司 | Air distribution flame holder for flat flame nozzles |
| CN102679352B (en) * | 2012-05-05 | 2015-05-13 | 中冶南方(武汉)威仕工业炉有限公司 | Flat-flame nozzle with automatic ignition and flame detection device |
| CN102966953B (en) * | 2012-11-08 | 2015-09-09 | 佛山市科皓燃烧设备制造有限公司 | A kind of burner being applicable to ultra-long radiant tube |
| CN110360591A (en) * | 2019-08-23 | 2019-10-22 | 蔡勇梅 | A kind of natural gas adds hydrogen low nitrogen combustion apparatus |
| CN112815357A (en) * | 2020-12-24 | 2021-05-18 | 北航（四川）西部国际创新港科技有限公司 | Flame tube structure of combustion chamber and combustion chamber |
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| CN102206742A (en) * | 2011-07-06 | 2011-10-05 | 艾伯纳工业炉(太仓)有限公司 | Waste hydrogen combustion system for full-hydrogen bell-type furnace used for bright annealing |
| CN102213421A (en) * | 2011-04-13 | 2011-10-12 | 中冶南方(武汉)威仕工业炉有限公司 | W-type radiation tube nozzle for electrode flame monitoring and application method of W-type radiation tube nozzle |
| CN202359177U (en) * | 2011-11-28 | 2012-08-01 | 中冶南方(武汉)威仕工业炉有限公司 | Waste hydrogen burner for full hydrogen bell type annealing furnace |
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| JP4439644B2 (en) * | 1999-12-01 | 2010-03-24 | 中外炉工業株式会社 | Bell type annealing furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102213421A (en) * | 2011-04-13 | 2011-10-12 | 中冶南方(武汉)威仕工业炉有限公司 | W-type radiation tube nozzle for electrode flame monitoring and application method of W-type radiation tube nozzle |
| CN102206742A (en) * | 2011-07-06 | 2011-10-05 | 艾伯纳工业炉(太仓)有限公司 | Waste hydrogen combustion system for full-hydrogen bell-type furnace used for bright annealing |
| CN202359177U (en) * | 2011-11-28 | 2012-08-01 | 中冶南方(武汉)威仕工业炉有限公司 | Waste hydrogen burner for full hydrogen bell type annealing furnace |
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