CN104613474A - Bottom-mounted type NOx discharging circular flame gas burner - Google Patents
Bottom-mounted type NOx discharging circular flame gas burner Download PDFInfo
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- CN104613474A CN104613474A CN201510058115.0A CN201510058115A CN104613474A CN 104613474 A CN104613474 A CN 104613474A CN 201510058115 A CN201510058115 A CN 201510058115A CN 104613474 A CN104613474 A CN 104613474A
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- brazier brick
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
- F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/007—Mixing tubes, air supply regulation
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention relates to a bottom-mounted type NOx discharging circular flame gas burner which comprises a cylinder part, a combustion air butterfly valve pipeline, a brazier brick part, an incandescent light and a gas supply system. The brazier brick part comprises an inner brazier brick and an outer brazier brick. An annular air channel is arranged between the two brazier bricks. Air channels are arranged at the center of the inner brazier brick. The combustion air butterfly valve pipeline is communicated with the inner portion of the cylinder part. Combustion air is guided into the annular air channel and the center air channels for burning respectively. The gas supply system comprises a plurality of gas nozzles. Each gas nozzle is provided with a first fuel spraying opening, a second fuel spraying opening and a third fuel spraying opening. Combustion air entering the air channels and fuel sprayed out by the gas nozzles are mixed to form oxygen deficient overrich burning, oxygen deficient overrich re-burning, oxygen enrichment over-diluted burning and smoke re-burning. Air staging feeding, gas three-level feeding and mixed multilevel burning are achieved, NOx generating is effectively restrained, and low NOx emission is achieved.
Description
Technical field
The present invention relates to petrochemical heating furnace burner apparatus, refer in particular to a kind of end dress formula low NOx drainage circle flame gas burner meeting that formula is burnt at the end, circular flame, fuel are combustion gas etc. and require.
Background technology
In order to tackle the emission request and urgent situation that national environmental protection improves constantly, the low NOx drainage combustion technology of current domestic petroleum chemical heating furnace burner, mostly can only ensure that NOx emission reaches about 50PPM.Various burner prolongs bear various structures round control NOx emission, fire again from fuel-staged combustion, bias combustion, fuel, flue gas recirculation etc. technology is constantly employed, but, be limited by heating furnace type of furnace design feature, the structure space of burner is limited, many kinds of measures cannot be applied simultaneously, reach the generation of comprehensive suppression NOx in combustion, further develop so limit low NOx drainage combustion technology.
The burner product of the employing low NOx combusting technology commercially applied, it is bad, unstable just to there is flame rigidity in some, and flame licks boiler tube phenomenon, even appears at second-time burning in heating furnace burner hearth, dodges quick-fried dangerous phenomenon.These are all in the generation technique application suppressing NOx, technical problem demanding prompt solution.
Summary of the invention
The object of the invention is for the shortcoming existed in background technology and problem improvement and bring new ideas in addition, a kind of multistage supply by fuel gas is provided, combustion air multiple flow passages, multithread speed, classification supply, realize the second-time burning of bias combustion, fuel-staged combustion, fuel, fully avoid generation best combustion environment and the temperature province of NOx, realize low NOx drainage, make NOx emission concentration lower than the end dress formula low NOx drainage circle flame gas burner within 20 PPM.
Technical scheme of the present invention is that structure a kind ofly comprises the cylinder part assembled with furnace bottom, be connected to the combustion air butterfly valve pipeline bottom cylinder part, be connected to the brazier brick parts at cylinder part top, stretch into the altar lamp of brazier brick part centre, with the round flame gas burner providing the gas supply system of fuel, wherein:
Brazier brick parts comprise interior brazier brick and have the outer brazier brick of combustion gas through hole, annular air channel is formed between two brazier bricks, air duct centered by interior brazier brick inner chamber, described combustion air butterfly valve pipeline communicates with cylinder part inside, and combustion air is introduced respectively described annular air channel and central air passage participation burning;
Described gas supply system comprises at least two gas nozzles being evenly distributed on cylinder part periphery, each gas nozzle is equipped with second fuel injection orifice on the first fuel injection orifice of corresponding outer brazier brick combustion gas through hole, corresponding outer brazier brick outer wall top, and the 3rd fuel injection orifice in correspondence above brazier brick;
The combustion air that described each air duct enters and the fuel mix that gas nozzle sprays also form level Four and burn, the burning of this level Four is included in mixing in annular air channel successively and realizes the burning of oxygen deprivation overrich, the burning of oxygen deprivation overrich is realized again in the mixing of annular air channel exit, realize oxygen enrichment in the mixing of interior brazier brick Zhuan Kou low pressure reflow zone and cross light burning, realize the burning again of flue gas in the mixing of interior brazier brick overhead.
Wherein in an embodiment, described brazier brick parts are arranged on the brazier brick supporting plate on cylinder part top, brazier brick supporting plate has the air hole of corresponding annular air channel and central air passage, described brazier brick supporting plate being also provided with swirl-flow devices makes the air entered in annular air channel form eddy flow First air, and described central air passage forms direct jet Secondary Air from bottom to top.Described swirl-flow devices comprises and is evenly arranged on bottom brazier brick supporting plate, is supported in the gusset of cylinder part inwall, and is evenly arranged on the spinning disk in brazier brick supporting plate top, annular air channel.
Wherein in an embodiment, described interior brazier brick and outer brazier brick are circulus, and interior brazier brick is arranged in outer brazier brick, and fix spacing therebetween by being arranged on brazier brick spacing ring in annular air channel; And described interior brazier brick is higher than outer brazier brick, height of formation is poor therebetween.Described interior brazier brick is the gradually open form structure that lower end vertical upper is opened; Described outer brazier brick inwall is vertical, outer wall top is the cone structure of inside indentation, the combustion gas via count that its outer brazier brick is offered and first fuel injection orifice of combustion gas through hole corresponding gas nozzle identical with the gas nozzle number of setting, the second fuel injection orifice of the outer wall conical surface of outer brazier brick then corresponding gas nozzle.
In above-described embodiment, on the brazier brick supporting plate of cylinder part, empty circulation passage and outer ring air duct two parts centered by combustion air is divided.Air swirl enters the annular air channel between inside and outside brazier brick, with Part I combustion gas mixing, carries out the overrich burning of low oxygen content, suppresses a large amount of productions of NOx; High temperature oxygen deprivation flue gas after burning is at annular air channel upper outlet place, continue to meet with the Part II fuel gas that gas nozzle is sent here mix with higher speed of revolving, carry out combustion with meagre oxygen further, form the reduced zone of a NOx, the effect of eddy flow defines velocity gradient, thermograde, and make combustion reaction relatively evenly, fully.High temperature oxygen deprivation mixed combustible gas body after NOx is reduced, rotation rises to interior brazier brick mouth, in the combustion air mixed combustion risen in the low pressure return region of Zhuan Kouchu and center direct current, forms oxygen enrichment herein and crosses light burning, control ignition temperature, suppress NOx to generate.Sprayed the Part III combustion gas sent here by gas nozzle, on the burner vacancy and oxygen enrichment high-temperature flue gas meet, mixed combustion, realize NOx and be reduced again.Supplied by the multiple fractionation of fuel, the fractional combustion of combustion air, effectively avoid the best formation condition of NOx, inhibit NOx to produce in a large number, and by arranging the reducing zone of NOx, the temperature field in control combustion region, fluid velocity field, finally realize the object of low NOx drainage.
In above-described embodiment, combustion air is divided into two-part object to be also, first outer ring portion eddy flow, realizing dense-dilute burner combustion technology, is to control for the purpose of low NOx drainage, secondly, center combustion air adopts direct jet, its feature is that angle of flare is little, far firing range, this ensures that theres the rigidity of flame and the height of flame.High speed combustion air forms low pressure reflow zone at interior brazier brick upper edge hole, is namely conducive to the mixed flue gas of outer shroud flow field generation and the suction of combustion gas, is beneficial to again flame transmission with smooth combustion, be unlikely to de-fire.
Wherein in an embodiment, described gas supply system comprises the gas nozzle be evenly arranged on around outer brazier brick, each gas nozzle is connected with the combustion gas annular drum pipe of lower end through metal hose by the combustion gas gun barrel being arranged in cylinder part periphery again, and described combustion gas annular drum pipe connects fuel gas transfer pipeline and the fuel gas of access is delivered to each gas nozzle respectively participate in burning through each metal hose, combustion gas gun barrel.
Wherein in an embodiment, described cylinder part comprises the urceolus being arranged at outer wall, be arranged at the noise reduction porous plate of inwall, and the refractory fibre packed layer be arranged between inside and outside wall, the inside of described cylinder part is vertical air duct, is provided with the sleeve pipe passed for gas supply system in top.
Wherein in an embodiment, described altar lamp top extends in the central air passage of interior brazier brick, lower end picks out through cylinder part, combustion air butterfly valve pipeline, and be connected with altar lamp fuel gas entrance, described altar lamp and combustion air butterfly valve duct bottom fixedly mount.
In above-described embodiment, burner fire pot center arranges altar lamp, can ignition burner, can ensure again the requirement of secure context during heating furnace normal operating.
Wherein in an embodiment, described combustion air butterfly valve pipeline is connected laterally at the bottom of cylinder part, combustion air butterfly valve pipeline comprises the urceolus being located at outer wall, is arranged at the noise reduction porous plate of inwall, and is arranged on the refractory fibre packed layer between inside and outside wall.
Advantage of the present invention and beneficial effect:
The present invention, by design multiple flow passages, realizes rotary wind, the burning of low oxygen content overrich more outer.The Secondary Air runner at center, keeps air higher speed, at the uniform velocity supplies, and realizes ensureing the effectively upright and outspoken of flame, realizes elevated oxygen level and cross light burning and fuel reburning.Rotary combustion can realize more uniform combustion zone, ensures the abundant of burning, avoids producing and dodges the dangerous phenomenons such as quick-fried.
The present invention makes the classification of air energy supply, and outer shroud air duct realizes the rotation of First air and overrich burns, and center secondary air channel realizes direct jet; Combustion gas realizes three grades of supplies, realize the burning of oxygen deprivation overrich, oxygen deprivation overrich burning further successively, oxygen enrichment crosses light burning and flue gas reburning burns, thus suppress NOx to generate, realize low NOx drainage, make NOx emission concentration lower than within 20 PPM, meet that formula is burnt at the end, circular flame, fuel is the requirement of combustion gas, flame is effectively upright and outspoken.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present invention.
Fig. 2 is perspective view of the present invention.
Fig. 3 is plan structure schematic diagram of the present invention.
Figure number illustrates:
1, interior brazier brick, 2, altar lamp, 3, outer brazier brick, 31, combustion gas through hole, 4, gas nozzle, 5, combustion gas gun barrel, 6, metal hose, 7, combustion gas annular drum pipe, 8, cylinder part, 81, refractory fibre packed layer, 82, sleeve pipe, 83, urceolus, 84, interior brazier brick spacing ring, 85, brazier brick supporting plate, 86, mounting flange plate, 87, gusset, 88, spinning disk, 89, noise reduction porous plate, 810, flange girth sheets, 9, combustion air butterfly valve pipeline, 10, altar lamp gas hose, 11, gas gun air induction hose, 12, flame-observing hole, 13, igniter aperture.
The outside sharp side of a, circular flame, the inner sharp side of b, flame, c, fuel gas spray line, d, furnace bottom, e, combustion air inlet, f, fuel gas entrance, g, altar lamp fuel gas entrance.
Detailed description of the invention
Combustion air of the present invention realizes classification supply, namely forms eddy flow First air passage, direct jet secondary air channel; Combustion gas realizes three grades of supplies, i.e. the first fuel injection orifice of corresponding outer brazier brick combustion gas through hole, second fuel injection orifice on corresponding outer brazier brick outer wall top, and the 3rd fuel injection orifice in correspondence above brazier brick.Simultaneously, brazier brick mouth is higher than outer brazier brick, forms certain difference in height, provides support for realizing multistage, multithread field burning.In combustion air and the annular air channel of combustion fuel between interior brazier brick and outer brazier brick, First air forms eddy flow, and in annular air channel, realize the burning of oxygen deprivation overrich; The burning of further oxygen deprivation overrich is realized in annular air channel exit; Realize oxygen enrichment in interior brazier brick Zhuan Kou low pressure reflow zone and cross light burning; Realize the burning again of flue gas in interior brazier brick overhead, fully avoid generation best combustion environment and the temperature province of NOx, realize low NOx drainage, make NOx emission concentration lower than within 20 PPM.
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.First-selected embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, the object of these embodiments is provided to be make to disclosure of the present invention more thoroughly comprehensively.
It should be noted that, when element is considered to " setting " or " connection " on another element, it can be directly arrange or be connected on another element or may there is centering elements simultaneously.Term used herein " top ", " bottom surface " and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology used herein are identical with the implication that those skilled in the art of the present invention understand usually with scientific terminology.The term used in description, just in order to describe concrete enforcement object, is not intended to be restriction the present invention.
From Fig. 1 to 3, burner is arranged on furnace bottom d, primarily of interior brazier brick 1, altar lamp 2, outer brazier brick 3, gas nozzle 4, combustion gas gun barrel 5, metal hose 6, combustion gas annular drum pipe 7, cylinder part 8, combustion air butterfly valve pipeline 9, altar lamp gas hose 10, gas gun air induction hose 11, flame-observing hole 12, parts such as igniter aperture 13 grade form, wherein cylinder part 8 is primarily of refractory fibre packed layer 81, sleeve pipe 82, urceolus 83, interior brazier brick spacing ring 84, brazier brick supporting plate 85, mounting flange plate 86, gusset 87, spinning disk 88, noise reduction porous plate 89, part such as flange girth sheets 810 grade forms.
As shown in Figure 1,3, burner entirety is assembled by mounting flange plate 86 and Bottom of Heating Furnace d steel plate, generally with bolts or welded and installed.Burner tube body component 8 bottom is connected with combustion air butterfly valve pipeline 9, and being hollow pipe in the middle of it, is combustion air feed path.For the object of insulation, noise reduction, be provided with inner thermal insulating layer in cylinder part 8 and combustion air butterfly valve pipeline 9, inner thermal insulating layer is that refractory fibre packed layer 81 is filled between noise reduction porous plate 89 and cylindrical shell wallboard.Furnace bottom d is stretched on cylinder part 8 top, upper top is provided with brazier brick supporting plate 85, its brazier brick supporting plate 85 is provided with interior brazier brick 1 and outer brazier brick 3, and offer air hole in corresponding position, an annular annular air channel and First air air duct is defined thus between interior brazier brick 1 and outer brazier brick 3, in interior brazier brick 1, be formed centrally central air passage and secondary air passage, thus achieve the classification of combustion air.Brazier brick supporting plate 85 and the gusset 87 be arranged on bottom it, the spinning disk 88 being arranged on its end face are welded and fixed, and make First air air form eddy flow in annular channel, just can produce velocity gradient and thermograde smoothly during burning, form the combustion field of multiple intensity gradual change.Interior brazier brick 1 is circular tube structure with outer brazier brick 3, and hydromechanical requirement is provided with different water passage surfaces.The annular tube wall of outer brazier brick 3 is provided with combustion gas through hole 31, this through hole and air swirl direction shape at a certain angle, to reduce the resistance that combustion gas sprays into; Outer brazier brick 3 upper design is trochoidal surface, is beneficial to combustion gas and arrives annular channel mouth along taper seat.
As shown in Figure 1, 2, gas nozzle 4, combustion gas gun barrel 5, metal hose 6, combustion gas annular drum pipe 7 and gas gun air induction hose 11 etc. form gas supply system.Gas nozzle 4 is arranged on combustion gas gun barrel 5, and combustion gas gun barrel 5 gos deep in burner hearth through the sleeve pipe 82 of cylinder part 8, and combustion gas gun barrel 5 is fixed on cylinder part 8 by waist type flange, bolt etc.The quantity of combustion gas gun barrel 5 and gas nozzle 4 can be arranged according to burner payload, centrally circumference uniform distribution.Each gas nozzle 4 connects corresponding combustion gas gun barrel 5 and metal hose 6, then is connected on combustion gas annular drum pipe 7 by metal hose 6, and combustion gas annular drum pipe 7 accesses fuel gas by a connecting line and gas gun air induction hose 11 again.The fuel gas of access is divided into three parts through gas nozzle 4 by the first fuel injection orifice, the second fuel injection orifice and the 3rd fuel injection orifice arranged from the bottom to top and sprays, Part I sprays into the combustion gas through hole 31 of outer brazier brick 3 by the first fuel injection orifice, with First air mixed combustion in annular air channel, set according to calculating and control the proportioning of First air and fuel gas, make combustion gas for combustion with meagre oxygen environment, realize overrich burning, generate in a large number to suppress NOx.Part II combustion gas is sprayed on outer brazier brick 3 upper cone shape surface by the second fuel injection orifice, arrive annular air channel exit, mix with oxygen deprivation high-temp combustion flue gas, the NOx generated is reduced, further formation combustion with meagre oxygen reaction, suppresses NOx to generate; Oxygen-deficient mixture body rises and arrives interior brazier brick 1 mouthful, and in low pressure reflow zone and Secondary Air mixed combustion, form oxygen-enriched combusting environment, excessive air reduces ignition temperature rapidly, generates to suppress NOx.Part III combustion gas is sprayed onto the overhead of burner centre by the 3rd fuel injection orifice, mix with the oxygen enrichment flue gas after burning, burn, now flue gas is in burning situation again substantially, and the NOx generated both had been reduced in combustion gas, is consumed by oxygen more than needed in air again by burning.
As shown in Figure 1, altar lamp 2 is arranged on combustion air butterfly valve pipeline 9, gos deep into burner internal, and brazier brick 1 centre position in its head arrives, the fuel gas of altar lamp 2 carries supply by altar lamp gas hose 10.
Embodiment of the present invention is only the description carried out the preferred embodiment of the present invention; not design of the present invention and scope are limited; under the prerequisite not departing from design philosophy of the present invention; the various modification that in this area, engineers and technicians make technical scheme of the present invention and improvement; protection scope of the present invention all should be fallen into; the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (9)
1. at the bottom of one kind, fill formula low NOx drainage circle flame gas burner, it is characterized in that comprising the cylinder part assembled with furnace bottom, be connected to the combustion air butterfly valve pipeline bottom cylinder part, be connected to the brazier brick parts at cylinder part top, stretch into the altar lamp of brazier brick part centre, with the gas supply system providing fuel, wherein:
Brazier brick parts comprise interior brazier brick and have the outer brazier brick of combustion gas through hole, annular air channel is formed between two brazier bricks, air duct centered by interior brazier brick inner chamber, described combustion air butterfly valve pipeline communicates with cylinder part inside, and combustion air is introduced respectively described annular air channel and central air passage participation burning;
Described gas supply system comprises at least two gas nozzles being evenly distributed on cylinder part periphery, each gas nozzle is equipped with second fuel injection orifice on the first fuel injection orifice of corresponding outer brazier brick combustion gas through hole, corresponding outer brazier brick outer wall top, and the 3rd fuel injection orifice in correspondence above brazier brick;
The combustion air that described each air duct enters and the fuel mix that gas nozzle sprays also form level Four and burn, the burning of this level Four is included in mixing in annular air channel successively and realizes the burning of oxygen deprivation overrich, the burning of oxygen deprivation overrich is realized again in the mixing of annular air channel exit, realize oxygen enrichment in the mixing of interior brazier brick Zhuan Kou low pressure reflow zone and cross light burning, realize the burning again of flue gas in the mixing of interior brazier brick overhead.
2. the end according to claim 1 dress formula low NOx drainage circle flame gas burner, it is characterized in that described brazier brick parts are arranged on the brazier brick supporting plate on cylinder part top, brazier brick supporting plate has the air hole of corresponding annular air channel and central air passage, described brazier brick supporting plate being also provided with swirl-flow devices makes the air entered in annular air channel form eddy flow First air, and described central air passage forms direct jet Secondary Air from bottom to top.
3. the end according to claim 2 dress formula low NOx drainage circle flame gas burner, it is characterized in that described swirl-flow devices comprises evenly to be arranged on bottom brazier brick supporting plate, to be supported in the gusset of cylinder part inwall, and be evenly arranged on the spinning disk in brazier brick supporting plate top, annular air channel.
4. the end according to claim 1 dress formula low NOx drainage circle flame gas burner, it is characterized in that described interior brazier brick and outer brazier brick are circulus, interior brazier brick is arranged in outer brazier brick, and fixes spacing therebetween by being arranged on brazier brick spacing ring in annular air channel; And described interior brazier brick is higher than outer brazier brick, height of formation is poor therebetween.
5. the end according to claim 4 dress formula low NOx drainage circle flame gas burner, is characterized in that described interior brazier brick is the gradually open form structure that lower end vertical upper is opened; Described outer brazier brick inwall is vertical, outer wall top is the cone structure of inside indentation, the combustion gas via count that its outer brazier brick is offered and first fuel injection orifice of combustion gas through hole corresponding gas nozzle identical with the gas nozzle number of setting, the second fuel injection orifice of the outer wall conical surface of outer brazier brick then corresponding gas nozzle.
6. the end according to claim 1 dress formula low NOx drainage circle flame gas burner, it is characterized in that described gas supply system comprises the gas nozzle be evenly arranged on around outer brazier brick, each gas nozzle is connected with the combustion gas annular drum pipe of lower end through metal hose by the combustion gas gun barrel being arranged in cylinder part periphery again, and described combustion gas annular drum pipe connects fuel gas transfer pipeline and the fuel gas of access is delivered to each gas nozzle respectively participate in burning through each metal hose, combustion gas gun barrel.
7. the end according to claim 1 dress formula low NOx drainage circle flame gas burner, it is characterized in that described cylinder part comprises the urceolus being arranged at outer wall, be arranged at the noise reduction porous plate of inwall, and the refractory fibre packed layer be arranged between inside and outside wall, the inside of described cylinder part is vertical air duct, is provided with the sleeve pipe passed for gas supply system in top.
8. the end according to claim 1 dress formula low NOx drainage circle flame gas burner, it is characterized in that described altar lamp top extends in the central air passage of interior brazier brick, lower end picks out through cylinder part, combustion air butterfly valve pipeline, be connected with altar lamp fuel gas entrance, described altar lamp and combustion air butterfly valve duct bottom fixedly mount.
9. the end according to claim 1 dress formula low NOx drainage circle flame gas burner, it is characterized in that described combustion air butterfly valve pipeline is connected laterally at the bottom of cylinder part, combustion air butterfly valve pipeline comprises the urceolus being located at outer wall, be arranged at the noise reduction porous plate of inwall, and be arranged on the refractory fibre packed layer between inside and outside wall.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510058115.0A CN104613474A (en) | 2015-02-05 | 2015-02-05 | Bottom-mounted type NOx discharging circular flame gas burner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510058115.0A CN104613474A (en) | 2015-02-05 | 2015-02-05 | Bottom-mounted type NOx discharging circular flame gas burner |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805743A (en) * | 2016-05-30 | 2016-07-27 | 穆瑞力 | Low-nitrogen energy-saving combustion unit of combustor |
| CN107120652A (en) * | 2017-05-09 | 2017-09-01 | 北京水木星源环保科技有限公司 | One kind classification combustion gas low NO |
| CN107726323A (en) * | 2017-11-28 | 2018-02-23 | 岳阳钟鼎热工电磁科技有限公司 | Ultra-low NOx emission circular flame oil and gas combination burner |
| CN107990312A (en) * | 2017-11-28 | 2018-05-04 | 北京拓首能源科技股份有限公司 | A kind of burner of low-nitrogen oxide discharging |
| CN108895446A (en) * | 2018-07-27 | 2018-11-27 | 岳阳恒盛石化科技有限公司 | A kind of odd numbered rounds are ignited energy-efficient ultralow NOXGas burner |
| CN110173690A (en) * | 2019-06-24 | 2019-08-27 | 上海锅炉厂有限公司 | A kind of boiler combustion gas low NO |
| CN110486722A (en) * | 2019-07-31 | 2019-11-22 | 南京天华化学工程有限公司 | A kind of bottom gas burner of the low NOx of hypoxemia |
| CN110553257A (en) * | 2019-09-19 | 2019-12-10 | 洛阳瑞铝耐火材料有限公司 | Novel high-efficiency low NO X burner |
| CN110925755A (en) * | 2019-12-13 | 2020-03-27 | 四川德胜集团钒钛有限公司 | Steam power generation boiler burner |
| CN112050209A (en) * | 2020-09-08 | 2020-12-08 | 合肥依科普工业设备有限公司 | Forced air cooling full-oxygen multi-stage burner |
| CN113757655A (en) * | 2021-08-04 | 2021-12-07 | 王青芝 | Mixed flame fuel staged combustion method |
| CN114183754A (en) * | 2020-09-14 | 2022-03-15 | 意大利利雅路股份有限公司 | Burner head of burner |
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