CN203478309U - Oxygen-enriched local-oxygen-aeration, jetting, combustion-supporting, energy-saving and emission-reduction device for heating furnace of olefin factory - Google Patents
Oxygen-enriched local-oxygen-aeration, jetting, combustion-supporting, energy-saving and emission-reduction device for heating furnace of olefin factory Download PDFInfo
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- CN203478309U CN203478309U CN201320536849.1U CN201320536849U CN203478309U CN 203478309 U CN203478309 U CN 203478309U CN 201320536849 U CN201320536849 U CN 201320536849U CN 203478309 U CN203478309 U CN 203478309U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
An oxygen-enriched local-oxygen-aeration, jetting, combustion-supporting, energy-saving and emission-reduction device for a heating furnace of an olefin factor comprises a plurality of oxygen-enriched nozzles, wherein the oxygen-enriched nozzles are close to a combustor; the distance between an opening of each enlarged oxygen-enriched nozzle and an opening of a fire basket of the combustor is 50mm-300mm; the jetting angle of combusting flame which is jetted by the enlarged oxygen-enriched nozzles is 6-30 degrees; and the enlarged oxygen-enriched gas jetting speed is 7%-30%, so that the combustion flame moves by a certain distance towards a side which is far away from one sides of the oxygen-enriched nozzles. The oxygen-enriched local-oxygen-aeration, jetting, combustion-supporting, energy-saving and emission-reduction device is characterized in that the oxygen-enriched nozzles are arranged between the combustor and the bottom of a material heating tube; the distance L1 between the center point of the opening of each oxygen-enriched nozzle and the center point of the combustor is 100mm-800mm; an included angle between the central axis of the combustor and the central axis of an oxygen-enriched jetting gun is 10-80 degrees; and an oxygen-enriched jetting divergence angle R1 is 15-65 degrees.
Description
Technical field
The present invention relates to the local oxygen-enriched oxygenation jet combustion supporting of olefin plant heating furnace energy-saving emission-reducing apparatus, be applicable to the heating furnace of all olefin plant, belong to the energy-conservation sciemtifec and technical sphere of alkene industry oxygen enrichment.
Background technology
At the heating furnace of olefin plant, implement oxygen-enriched combustion-supporting energy-conservation, this only has implementation success on the hydrogenation heating furnace of two, workshop of inventor Wei Baiqing Sinopec asphalt in Shenli Refinery's olefin plant aromatic hydrocarbons at home and abroad, and has so far normally moved more than 2 years safely, in refining olefin plant, implement oxygen enrichment Energy-saving Projects, not only to consider its energy-saving effect, more to consider the security of its enforcement oxygen-enriched combustion-supporting, the interior Temperature Distribution of burner hearth that the combustion flame that particularly in stove, oxygen-enriched combustion-supporting brings is controlled and combustion flame temperature raises to be brought changes, for guaranteeing the security of oxygen-enriched combustion-supporting, this just requires us when implementing oxygen-enriched combustion-supporting transformation, should consider that the distribution that changes temperature in burner hearth is to improve heat exchange efficiency, consider that again the change of the interior Temperature Distribution of burner hearth can not affect the security of heating furnace, in addition, implementing has the flare of one of them burner of heating furnace always to float towards nearest heating material pipe in two energy-conservation heating furnaces of oxygen enrichment, because be heated material in heating material pipe, be hydrogen, once floating towards nearest heating material pipe formation hot-spot, the flare of burner will burn out heating material pipe, cause blast to form very serious major break down, for this reason, inventor uncle's Wei minister in ancient times is by strengthening distance and the angle between rich-oxygen nozzle axis and burner axis and the measures such as flow velocity of oxygen enrichment Gas Jet between rich-oxygen nozzle mouth and burner fire pot mouth, the burner flare that success always floats towards nearest heating material pipe by flare presses to away from nearest heating material pipe, guaranteed the production run safety of heating furnace.
Summary of the invention
The object of this invention is to provide and a kind ofly can utilize radiation efficiency that oxygen-enriched combustion-supporting improves heating furnace and change in heating furnace flame distribution to improve the local oxygen-enriched oxygenation jet combustion supporting of the olefin plant heating furnace energy-saving emission-reducing apparatus of the production run security of heating furnace by changing the position of rich-oxygen nozzle and angle that oxygen enrichment sprays.
The local oxygen-enriched oxygenation jet combustion supporting of olefin plant heating furnace energy-saving emission-reducing apparatus, comprise that many covers are installed near rich-oxygen nozzle burner, thereby and strengthen distance 50mm ~ 300 mm between rich-oxygen nozzle mouth and burner fire pot mouth, strengthen 6 ° ~ 30 ° of spray angles, the increasing oxygen rich gas jet velocity 7% ~ 30% that rich-oxygen nozzle sprays to combustion flame and make combustion flame to moving certain displacement away from rich-oxygen nozzle one thruster; It is characterized in that:
1, rich-oxygen nozzle is arranged between burner and heating material pipe bottom, making the distance L 1 between rich-oxygen nozzle mouth central point and burner central point is 100 mm ~ 800 mm, and to make burner axis and oxygen enrichment spray gun axis angle Q1 be 10 ° ~ 80 °, and making oxygen enrichment spraying divergence angle R1 is 15 ° ~ 65 °, now, it is combustion-supporting that the direct jet of oxygen rich gas sprays into the region of the anoxic in combustion flame center, make combustion flame center temperature reach the highest, thereby increase the radiation efficiency of combustion flame to improve the radiation efficiency of heating furnace and then to realize energy-conservation, the now highest temperature zone of combustion flame and former combustion flame maximum temperature area overlapping.
2, by strengthening the distance between rich-oxygen nozzle mouth and burner fire pot mouth, the spray angle that increasing rich-oxygen nozzle sprays to combustion flame, the jet velocity that strengthens oxygen rich gas, realize combustion flame to moving certain displacement T away from rich-oxygen nozzle one thruster, because olefin plant heating furnace has the flare of individual burner always to float towards nearest heating material pipe, in order not make this heating material pipe be caused serious blast major break down by overheated the burning out of flare, rich-oxygen nozzle is arranged between burner fire pot mouth and heating material pipe bottom, simultaneously, for flare, always float towards its burner fire pot mouth of burner of nearest heating material pipe and the rich-oxygen nozzle between heating material pipe bottom, distance L 1 between the rich-oxygen nozzle mouth central point of this rich-oxygen nozzle and burner central point is added to greatly L2, and this burner axis and oxygen enrichment spray gun axis angle Q1 are added to greatly Q2, and thereby the rich-oxygen nozzle mouth internal diameter of this rich-oxygen nozzle is reduced to strengthen the speed that its oxygen rich gas sprays, its oxygen rich gas spouting velocity strengthens 8% ~ 50%, the speed of oxygen rich gas ejection has strengthened, the angle of flare of its oxygen rich gas ejection has also just reduced, by R1, be reduced to R2, near rich-oxygen nozzle this burner fire pot mouth like this, the oxygen rich gas of its injection just can press to the combustion flame of this burner the direction burning that oxygen rich gas sprays, combustion flame is pushed to the concentrated combustion of combustion flame center by oxygen rich gas near the combustion flame of side outermost one circle of oxygen rich gas injection, so just make the combustion flame that always floats towards nearest heating material pipe move apart this heating material pipe, thereby guarantee that the combustion flame that always floats towards nearest heating material pipe no longer floats towards this heating material pipe, and then guaranteed the production run safety of heating furnace, T=20 mm ~ 500 mm, L1 < L2, L2 is 120 mm ~ 1000 mm, Q1<Q2, Q2 is 12 ° ~ 90 °, R2<R1, R2 is 8 ° ~ 45 °.
3, branched oxygen enrichment spray gun stretches in heating furnace from heating furnace bottom and is arranged on the outside of burner for heating furnace, in heating furnace, make the rich-oxygen nozzle of oxygen enrichment spray gun front end be arranged between burner fire pot mouth and heating material pipe bottom the position near burner fire pot mouth, and many vertical being arranged near on a circumference of heating furnace inwall in heating material pipe comparatively dense ground, a plurality of burner fire pot mouths are distributed on another circumference of heating material pipe inner side, heating furnace inwall is a circumference, the circumference that heating furnace inwall circumference and heating material pipe are uniform and the uniform circumference of burner fire pot mouth are concentric circles, the center of circle is heating furnace central point.
The present invention compared with prior art has the following advantages:
1, the present invention can successfully be applied to local oxygen-enriched oxygenation jet combustion supporting the heating furnace of olefin plant safely and efficiently, this at home and abroad still belong in history the first, particularly by local oxygen-enriched oxygenation jet combustion supporting technical security, be successfully applied to the heating furnace that adds hot hydrogen that harmful grade is the highest, this is equal beyond examples at home and abroad.
,the present invention can spray to by the distance by between increasing rich-oxygen nozzle mouth and burner fire pot mouth, increasing rich-oxygen nozzle spray angle, the increasing oxygen rich gas injection flow velocity of combustion flame, realize combustion flame to moving certain displacement away from rich-oxygen nozzle one thruster, thereby make the combustion flame that always floats towards nearest heating material pipe move apart this heating material pipe to guarantee the safety of production run.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention rich-oxygen nozzle position view;
Fig. 2 is middle rich-oxygen nozzle embodiment illustrated in fig. 1 and flame schematic diagram;
Fig. 3 is that middle rich-oxygen nozzle embodiment illustrated in fig. 1 is passed flame schematic diagram.
In Fig. 1-3: 1, heating furnace 2, heating material pipe 3, rich-oxygen nozzle 4, heating furnace central point 5, burner fire pot mouth 6, distance L 27 between rich-oxygen nozzle mouth central point and burner central point, burner 8, oxygen enrichment spray gun 9, oxygen enrichment spraying divergence angle R2 10, burner axis and oxygen enrichment spray gun axis angle Q2 11, oxygen rich gas 12, combustion flame 13, distance L 1 14 between rich-oxygen nozzle mouth central point and burner central point, oxygen enrichment spraying divergence angle R1 15, burner axis and oxygen enrichment spray gun axis angle Q1 16, large angle of flare oxygen rich gas 17, the circumference 18 that rich-oxygen nozzle is uniform, the circumference 19 that burner fire pot mouth is uniform, the circumference that heating material pipe is uniform.
The specific embodiment
In the embodiment shown in Fig. 1-3: the local oxygen-enriched oxygenation jet combustion supporting of olefin plant heating furnace energy-saving emission-reducing apparatus, comprise that many covers are installed near the rich-oxygen nozzle 3 burner 7, thereby and strengthen distance 50mm ~ 300 mm between 3 mouthfuls of rich-oxygen nozzles and burner fire pot mouth 5, strengthen 6 ° ~ 30 ° of spray angles, increasing oxygen rich gas 11 jet velocities 7% ~ 30% that rich-oxygen nozzle 3 sprays to combustion flame 12 and make combustion flame 12 to moving certain displacement away from rich-oxygen nozzle 3 one thrusters, it is characterized in that: rich-oxygen nozzle 3 is arranged between burner 7 and heating material pipe 2 bottoms, making the distance L 1 13 between rich-oxygen nozzle mouth central point and burner central point is 100 mm ~ 800 mm, and to make burner axis and oxygen enrichment spray gun axis angle Q1 15 be 10 ° ~ 80 °, and making oxygen enrichment spraying divergence angle R1 14 is 15 ° ~ 65 °, now, it is combustion-supporting that the direct jet of oxygen rich gas sprays into the region of the anoxic in combustion flame 12 centers, make combustion flame 12 center temperature reach the highest, thereby increase the radiation efficiency of combustion flame 12 to improve the radiation efficiency of heating furnace 1 and then to realize energy-conservation, the now highest temperature zone of combustion flame 12 and former combustion flame 12 maximum temperature area overlappings.
By strengthening the distance between 3 mouthfuls of rich-oxygen nozzles and burner fire pot mouth 5, the spray angle that increasing rich-oxygen nozzle 3 sprays to combustion flame 12, the jet velocity that strengthens oxygen rich gas 11, realize combustion flame 12 to moving certain displacement T away from rich-oxygen nozzle 3 one thrusters, because olefin plant heating furnace 1 has the flare of individual burner 7 always to float towards nearest heating material pipe 2, in order not make this heating material pipe 2 be caused serious blast major break down by overheated the burning out of flare, rich-oxygen nozzle 3 is arranged between burner fire pot mouth 5 and heating material pipe 2 bottoms, simultaneously, for flare, always float towards burner 7 its burner fire pot mouths 5 of nearest heating material pipe 2 and the rich-oxygen nozzle 3 between heating material pipe 2 bottoms, distance L 1 13 between the rich-oxygen nozzle mouth central point of this rich-oxygen nozzle 3 and burner central point is added to greatly L2, and this burner axis and oxygen enrichment spray gun axis angle Q1 15 are added to greatly Q2, and thereby 3 mouthfuls of internal diameters of the rich-oxygen nozzle of this rich-oxygen nozzle 3 are reduced to strengthen the speed that its oxygen rich gas 11 sprays, its oxygen rich gas 11 spouting velocities strengthen 8% ~ 50%, the speed of oxygen rich gas 11 ejections has strengthened, the angle of flare of its oxygen rich gas 11 ejections has also just reduced, by R1, be reduced to R2, near rich-oxygen nozzle 3 this burner fire pot mouth 5 like this, the oxygen rich gas 11 of its injection just can press to the combustion flame of this burner 7 12 the direction burning that oxygen rich gas 11 sprays, combustion flame 12 is pushed to combustion flame 12 center concentrated combustions by oxygen rich gas 11 near the combustion flame 12 of side outermost one circle of oxygen rich gas 11 injections, so just make the combustion flame 12 that always floats towards nearest heating material pipe 2 move apart this heating material pipe 2, thereby guarantee that the combustion flame 12 that always floats towards nearest heating material pipe 2 no longer floats towards this heating material pipe 2, and then guaranteed the production run safety of heating furnace, T=20 mm ~ 500 mm, L1 < L2, L2 is 120 mm ~ 1000 mm, Q1<Q2, Q2 is 12 ° ~ 90 °, R2<R1, R2 is 8 ° ~ 45 °.
Branched oxygen enrichment spray gun 8 stretches in heating furnace 1 and is arranged on the outside of heating furnace 1 burner 7 from heating furnace 1 bottom, in heating furnace 1, make the rich-oxygen nozzle 3 of oxygen enrichment spray gun 8 front ends be arranged between burner fire pot mouth 5 and heating material pipe 2 bottoms the position near burner fire pot mouth 5, and many vertical being arranged near on a circumference of heating furnace 1 inwall in heating material pipe 2 comparatively dense ground, a plurality of burner fire pot mouths 5 are distributed on another circumference of heating material pipe 2 inner sides, heating furnace 1 inwall is a circumference, the circumference that heating furnace 1 inwall circumference and heating material pipe 2 are uniform and burner fire pot mouth 5 uniform circumference are concentric circles, the center of circle is heating furnace central point 4.
Claims (2)
1. the local oxygen-enriched oxygenation jet combustion supporting of olefin plant heating furnace energy-saving emission-reducing apparatus, comprise that many covers are installed near the rich-oxygen nozzle (3) burner (7), and strengthen distance 50mm ~ 300 mm between rich-oxygen nozzle (3) mouthful and burner fire pot mouth (5), strengthen 6 ° ~ 30 ° of spray angles that rich-oxygen nozzle (3) sprays to combustion flame (12), increasing oxygen rich gas (11) thus jet velocity 7% ~ 30% makes combustion flame (12) to moving certain displacement away from rich-oxygen nozzle (3) one thrusters; It is characterized in that: rich-oxygen nozzle (3) is arranged between burner (7) and heating material pipe (2) bottom, making the distance L 1 (13) between rich-oxygen nozzle mouth central point and burner central point is 100 mm ~ 800 mm, and to make burner axis and oxygen enrichment spray gun axis angle Q1 (15) be 10 ° ~ 80 °, and to make oxygen enrichment spraying divergence angle R1 (14) be 15 ° ~ 65 °.
2. the local oxygen-enriched oxygenation jet combustion supporting of olefin plant heating furnace as claimed in claim 1 energy-saving emission-reducing apparatus, it is characterized in that: branched oxygen enrichment spray gun (8) stretches in heating furnace (1) from heating furnace (1) bottom and is arranged on the outside of heating furnace (1) burner (7), in heating furnace (1), make the rich-oxygen nozzle (3) of oxygen enrichment spray gun (8) front end be arranged between burner fire pot mouth (5) and heating material pipe (2) bottom the position near burner fire pot mouth (5), and many heating material pipes (2) comparatively dense ground is vertical, be arranged near on a circumference of heating furnace (1) inwall, a plurality of burner fire pot mouths (5) are distributed on another circumference of heating material pipe (2) inner side, heating furnace (1) inwall is a circumference, the circumference that heating furnace (1) inwall circumference and heating material pipe (2) are uniform and the uniform circumference of burner fire pot mouth (5) are concentric circles, the center of circle is heating furnace central point (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320536849.1U CN203478309U (en) | 2013-08-31 | 2013-08-31 | Oxygen-enriched local-oxygen-aeration, jetting, combustion-supporting, energy-saving and emission-reduction device for heating furnace of olefin factory |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320536849.1U CN203478309U (en) | 2013-08-31 | 2013-08-31 | Oxygen-enriched local-oxygen-aeration, jetting, combustion-supporting, energy-saving and emission-reduction device for heating furnace of olefin factory |
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| CN203478309U true CN203478309U (en) | 2014-03-12 |
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| CN201320536849.1U Expired - Fee Related CN203478309U (en) | 2013-08-31 | 2013-08-31 | Oxygen-enriched local-oxygen-aeration, jetting, combustion-supporting, energy-saving and emission-reduction device for heating furnace of olefin factory |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534863A (en) * | 2014-12-12 | 2015-04-22 | 魏伯卿 | Oxygen-enriched energy-saving and emission-reducing system of aluminum melting furnace |
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2013
- 2013-08-31 CN CN201320536849.1U patent/CN203478309U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534863A (en) * | 2014-12-12 | 2015-04-22 | 魏伯卿 | Oxygen-enriched energy-saving and emission-reducing system of aluminum melting furnace |
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Granted publication date: 20140312 Termination date: 20150831 |
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