CN108534138A - It is a kind of to be classified low NOx updrafts burner - Google Patents

It is a kind of to be classified low NOx updrafts burner Download PDF

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Publication number
CN108534138A
CN108534138A CN201810353166.XA CN201810353166A CN108534138A CN 108534138 A CN108534138 A CN 108534138A CN 201810353166 A CN201810353166 A CN 201810353166A CN 108534138 A CN108534138 A CN 108534138A
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CN
China
Prior art keywords
burner
hole
circular hole
updrafts
air
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Granted
Application number
CN201810353166.XA
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Chinese (zh)
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CN108534138B (en
Inventor
潘景新
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Hangzhou Zhongjing Technology Co Ltd
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Hangzhou Zhongjing Technology Co Ltd
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Priority to CN201810353166.XA priority Critical patent/CN108534138B/en
Publication of CN108534138A publication Critical patent/CN108534138A/en
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Publication of CN108534138B publication Critical patent/CN108534138B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/48Nozzles
    • F23D14/58Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/62Mixing devices; Mixing tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/70Baffles or like flow-disturbing devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2207/00Ignition devices associated with burner
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect 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 present invention relates to a kind of low NOx updrafts burners of classification, belong to fuel burner nozzle technical field.Major part updraft burner mostly uses mixed once burning structure at present, and flame temperature is high, and NOx content is high in combustion product, and larger pollution, but the burner flame poor rigidity of most low NOx drainages at present are caused to environment.The present invention includes end cap, shell, burner core, Gas Pipe, air guide device, burner block, ignitor and flame detecting device, fuel gas interface and peep-hole are provided on end cap, shell includes air interface and air circulation cavity, air interface is connected to air circulation cavity, ignitor and flame detecting device are installed on end cap, end cap is mounted on the side of shell, burner block is mounted on the other side of shell, air guide device is mounted in air circulation cavity, and air guide device is between shell and burner block, burner core is mounted in air guide device, end cap is connect with burner core by Gas Pipe.

Description

It is a kind of to be classified low NOx updrafts burner
Technical field
The present invention relates to a kind of low NOx updrafts burners of classification, belong to fuel burner nozzle technical field.Be practically applicable to steel, it is coloured, The heat-treatment furnace of the industrial furnace of the industries such as machinery, ceramics, especially air preheat.
Background technology
Major part updraft burner mostly uses mixed once burning structure at present, and flame temperature is high, NOx content in combustion product Height causes larger pollution, but the burner flame poor rigidity of most low NOx drainages at present to environment, complicated, influences it in work Popularization on industry stove and application.
Invention content
It is an object of the invention to overcome above-mentioned deficiency existing in the prior art, and provide a kind of reasonable in design It is mixed and burned by multistage, reduces flame kernel oxygen content, reduce flame temperature, NOx is inhibited to generate, reduced in combustion product NOx content, Flame Temperature Distribution is more uniform, improves the low NOx updrafts burner of classification of heating quality.
Technical solution is used by the present invention solves the above problems:The low NOx updrafts burner of the classification, design feature exist In:Including end cap, shell, burner core, Gas Pipe, air guide device, burner block, ignitor and flame detecting device, institute It states and is provided with fuel gas interface and peep-hole on end cap, the shell includes air interface and air circulation cavity, and the air connects Mouth is connected to air circulation cavity, and the ignitor and flame detecting device are installed on end cap, and the end cap is mounted on The side of shell, the burner block are mounted on the other side of shell, and the air guide device is mounted in air circulation cavity, And air guide device is between shell and burner block, the burner core is mounted in air guide device, the end cap with Burner core is connected by Gas Pipe.
Further, the burner core include flow restriction baffle, flange, fan annular groove notch, side wall circular hole, end face circular hole, in Heart circular hole, connecting plate and burner core ontology, the flange are arranged in the side of burner core ontology, and the connecting plate is arranged in burner The other side of core ontology, the fan annular groove notch are arranged on flange, and the flow restriction baffle and side wall circular hole are arranged at burner On the side wall of core ontology, the end face circular hole and center hole are arranged on connecting plate, and center hole is located at connecting plate Middle part.
Further, the Gas Pipe includes second gas burning spurt hole and multistage wind distributing hole, the second gas burning spurt hole Multiple each along being circumferentially provided with for Gas Pipe with multistage wind distributing hole, one end of the Gas Pipe is connected to fuel gas interface, described The other end, second gas burning spurt hole and the multistage wind distributing hole of Gas Pipe are respectively positioned in burner core ontology.
Further, the air guide device includes Circular Plate, through-hole and sleeve, and the Circular Plate is mounted on sleeve On, the through-hole is arranged in Circular Plate, and the Circular Plate is mounted between shell and burner block, and the burner core is mounted on set In cylinder, the quantity of the through-hole is 1~2 ring.
Further, the burner block includes collection chamber, combustion chamber, multiple air flow holes and combustion chamber connector, institute The shape for stating collection chamber is cylindric, and the inside of the combustion chamber is cylindrical cavity, and the multiple air flow hole is both provided with The one end in taper, one end of the combustion chamber and multiple air flow holes is connected to collection chamber, the other end of the combustion chamber It is connected to combustion chamber connector, the diameter of one end of the combustion chamber is more than the diameter of the other end of combustion chamber, the current limliting gear Plate and connecting plate are respectively positioned in sleeve, and the flange is located in combustion chamber, and the quantity in the air flow hole is 2~8.
Further, the shape of the burner core ontology is round table-like, and the inside of the burner core ontology is cavity structure, Angle between the busbar and the axis of burner core ontology of the burner core ontology is θ, 0 °≤θ≤30 °, the fan annular groove notch Quantity be n, n >=2, n fan annular groove notch each along the circumferentially distributed of burner core ontology.
Further, the quantity of the side wall circular hole is 2~3 rings, the integral multiple that the quantity per ring-side wall circular hole is n, In the first ring-side wall circular hole axis and the axis of burner core ontology between angle be α, 30 °≤α≤90 °, remaining each ring side Angle between the axis and the axis of burner core ontology of wall circular hole is β, and 15 °≤β≤75 °, the flow restriction baffle setting exists The right side of first ring-side wall circular hole.
Further, the end face circular hole quantity is 2~3 rings, and the end face circular hole includes outer end face circular hole and inner face The axis of circular hole, the outer end face circular hole is parallel with the axis of burner core ontology, axis and the burner core of the inner face circular hole Angle between the axis of ontology is γ, and the drift angle of inner face circular hole in the counterclockwise direction is λ, 0 °≤γ≤20 °, 0 °≤λ ≤15°。
Further, the height of the sleeve is h, and the distance between arrival end of the sleeve to connecting plate is x, 0≤x ≤h/2。
Further, the combustion method of the low NOx updrafts burner of classification, feature are:The low NOx updrafts of the classification Burner is by the air flow hole of air guide device, the side wall circular hole of burner core and burner block proportionally by air and combustion gas It is repeatedly mixed and burned, it is made to reduce oxygen concentration at combustion flame center, to form reducing atmosphere, inhibited NOx to generate, carry High flame rigidity, reduces flame temperature, reduces the generation of NOx, to realize the low emission of Industrial Burner.
Compared with prior art, the present invention has the following advantages:
The device can be mixed and burned by multistage, reduce flame kernel oxygen content, reduce flame temperature, and NOx is inhibited to generate, The NOx content in combustion product is reduced, Flame Temperature Distribution is more uniform, improves heating quality.
Description of the drawings
Fig. 1 is the main view cross-sectional view of the low NOx updrafts burner of classification of the embodiment of the present invention.
Fig. 2 is the right side structural representation of the burner core of the embodiment of the present invention.
Fig. 3 is the main view cross-sectional view of the burner core of the embodiment of the present invention.
Fig. 4 is the left view structural representation of the burner core of the embodiment of the present invention.
Fig. 5 is the main view cross-sectional view of the air guide device of the embodiment of the present invention.
Fig. 6 is the right side structural representation of the air guide device of the embodiment of the present invention.
In figure:End cap 1, shell 2, burner core 3, Gas Pipe 4, air guide device 5, burner block 6, ignitor 7, flame Detection device 8, fuel gas interface 11, peep-hole 12, air interface 21, air circulation cavity 22, flow restriction baffle 31, flange 32, fan Annular groove notch 33, side wall circular hole 34, end face circular hole 35, center hole 36, connecting plate 37, burner core ontology 38, second gas burning spray Discharge orifice 41, multistage wind distributing hole 42, Circular Plate 51, through-hole 52, sleeve 53, collection chamber 61, combustion chamber 62, air flow hole 63, combustion Burn room connector 64.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following embodiment is to this hair Bright explanation and the invention is not limited in following embodiments.
Embodiment.
Shown in Fig. 1 to Fig. 6, it should however be clear that structure, ratio, size etc. depicted in this specification institute accompanying drawings are only used To coordinate the revealed content of specification, so that those skilled in the art understands and reads, being not limited to the present invention can The qualifications of implementation, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, should all still fall in disclosed skill In the range of art content can cover.Meanwhile if in this specification with reference as "upper", "lower", "left", "right", " centre " and The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness It is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable scope of the present invention.
The low NOx updrafts burner of classification in the present embodiment, including end cap 1, shell 2, burner core 3, Gas Pipe 4, air are led Device 5, burner block 6, ignitor 7 and flame detecting device 8 are flowed, fuel gas interface 11 and peep-hole 12, shell are provided on end cap 1 Body 2 includes air interface 21 and air circulation cavity 22, and air interface 21 is connected to air circulation cavity 22,7 He of ignitor Flame detecting device 8 is installed on end cap 1, and end cap 1 is mounted on the side of shell 2, and burner block 6 is mounted on the another of shell 2 Side, air guide device 5 is mounted in air circulation cavity 22, and air guide device 5 is between shell 2 and burner block 6, Burner core 3 is mounted in air guide device 5, and end cap 1 is connect with burner core 3 by Gas Pipe 4.
Burner core 3 in the present embodiment includes flow restriction baffle 31, flange 32, fan annular groove notch 33, side wall circular hole 34, end face Circular hole 35, center hole 36, connecting plate 37 and burner core ontology 38, flange 32 are arranged in the side of burner core ontology 38, connection Plate 37 is arranged in the other side of burner core ontology 38, and fan annular groove notch 33 is arranged on flange 32, flow restriction baffle 31 and side wall circle Hole 34 is arranged on the side wall of burner core ontology 38, and end face circular hole 35 and center hole 36 are arranged on connecting plate 37, and Center hole 36 is located at the middle part of connecting plate 37.
Gas Pipe 4 in the present embodiment includes second gas burning spurt hole 41 and multistage wind distributing hole 42, second gas burning spurt hole 41 is multiple each along being circumferentially provided with for Gas Pipe 4 with multistage wind distributing hole 42, and one end of Gas Pipe 4 is connected to fuel gas interface 11, The other end, second gas burning spurt hole 41 and the multistage wind distributing hole 42 of Gas Pipe 4 are respectively positioned in burner core ontology 38.
Air guide device 5 in the present embodiment includes Circular Plate 51, through-hole 52 and sleeve 53, and Circular Plate 51 is mounted on set On cylinder 53, through-hole 52 is arranged in Circular Plate 51, and Circular Plate 51 is mounted between shell 2 and burner block 6, and burner core 3 is mounted on In sleeve 53, the quantity of through-hole 52 is 1~2 ring.
Burner block 6 in the present embodiment is connected including collection chamber 61, combustion chamber 62, multiple air flow holes 63 with combustion chamber The shape of mouth 64, collection chamber 61 is cylindric, and the inside of combustion chamber 62 is cylindrical cavity, and multiple air flow holes 63 are both provided with The one end in taper, one end of combustion chamber 62 and multiple air flow holes 63 is connected to collection chamber 61, the other end of combustion chamber 62 It is connected to combustion chamber connector 64, the diameter of one end of combustion chamber 62 is more than the diameter of the other end of combustion chamber 62, flow restriction baffle 31 and connecting plate 37 be respectively positioned in sleeve 53, flange 32 is located in combustion chamber 62, and the quantity in air flow hole 63 is 2~8.
The shape of burner core ontology 38 in the present embodiment is round table-like, and the inside of burner core ontology 38 is cavity structure, Angle between the busbar and the axis of burner core ontology 38 of burner core ontology 38 is θ, 0 °≤θ≤30 °, fans annular groove notch 33 Quantity is n, n >=2, and n fan annular groove notch 33 is each along the circumferentially distributed of burner core ontology 38.
The quantity of side wall circular hole 34 in the present embodiment is 2~3 rings, the integral multiple that the quantity per ring-side wall circular hole 34 is n, Angle wherein between the axis of the first ring-side wall circular hole and the axis of burner core ontology 38 is α, and 30 °≤α≤90 °, remaining is each Angle between the axis and the axis of burner core ontology 38 of ring-side wall circular hole 34 is β, 15 °≤β≤75 °, flow restriction baffle 31 It is arranged on the right side of the first ring-side wall circular hole 34.
35 quantity of end face circular hole in the present embodiment is 2~3 rings, and end face circular hole 35 includes that outer end face circular hole and inner face are justified The axis in hole, outer end face circular hole is parallel with the axis of burner core ontology 38, axis and the burner core ontology 38 of inner face circular hole Angle between axis is γ, and the drift angle of inner face circular hole in the counterclockwise direction is λ, 0 °≤γ≤20 °, 0 °≤λ≤15 °.
The height of sleeve 53 in the present embodiment is h, and the distance between arrival end of sleeve 53 to connecting plate 37 is x, 0≤ x≤h/2。
The combustion method of the low NOx updrafts burner of classification in the present embodiment, passes through the side of air guide device 5, burner core 3 Air is proportionally repeatedly mixed and burned by the air flow hole 63 of wall circular hole 34 and burner block 6 with combustion gas, it is made to fire Burning flame kernel reduces oxygen concentration, to form reducing atmosphere, NOx is inhibited to generate, improves flame rigidity, reduces flame temperature Degree, reduces the generation of NOx, to realize the low emission of Industrial Burner.
It is provided with heat insulation layer in air circulation cavity 22 in the present embodiment.
All orientation in the present embodiment describe on the basis of Fig. 1.
The device can be mixed and burned by multistage, reduce flame kernel oxygen content, reduce flame temperature, inhibit NOx It generates, reduces the NOx content in combustion product, Flame Temperature Distribution is more uniform, improves heating quality.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of parts and components is named Claiming etc. can be different, described in this specification above content is only to structure of the invention example explanation.It is all according to The equivalence changes or simple change done according to the structure, feature and principle described in inventional idea of the present invention, are included in this hair In the protection domain of bright patent.Those skilled in the art can do described specific embodiment various The modify or supplement or adopt similar mode of various kinds substitutes, and without departing from structure of the invention or surmounts present claims Range defined in book, is within the scope of protection of the invention.

Claims (10)

1. a kind of being classified low NOx updrafts burner, it is characterised in that:Including end cap, shell, burner core, Gas Pipe, air conducting dress It sets, burner block, ignitor and flame detecting device, fuel gas interface and peep-hole, the shell packet is provided on the end cap Air interface and air circulation cavity are included, the air interface is connected to air circulation cavity, the ignitor and flame inspection It surveys device to be installed on end cap, the end cap is mounted on the side of shell, and the burner block is mounted on the other side of shell, institute Air guide device is stated in the air circulation cavity, and air guide device is between shell and burner block, the burning Mouth core is mounted in air guide device, and the end cap is connect with burner core by Gas Pipe.
2. according to claim 1 be classified low NOx updrafts burner, it is characterised in that:The burner core include flow restriction baffle, Flange, fan annular groove notch, side wall circular hole, end face circular hole, center hole, connecting plate and burner core ontology, the flange setting exist The side of burner core ontology, the connecting plate are arranged in the other side of burner core ontology, and the fan annular groove notch is arranged in flange On, the flow restriction baffle and side wall circular hole are arranged on the side wall of burner core ontology, and the end face circular hole and center hole are equal It is arranged on connecting plate, and center hole is located at the middle part of connecting plate.
3. according to claim 2 be classified low NOx updrafts burner, it is characterised in that:The Gas Pipe includes second gas burning Spurt hole and multistage wind distributing hole, the second gas burning spurt hole and multistage wind distributing hole are more each along being circumferentially provided with for Gas Pipe A, one end of the Gas Pipe is connected to fuel gas interface, the other end, second gas burning spurt hole and the multistage air distribution of the Gas Pipe Hole is respectively positioned in burner core ontology.
4. according to claim 3 be classified low NOx updrafts burner, it is characterised in that:The air guide device includes circle Ring flat-plate, through-hole and sleeve, the Circular Plate are mounted on sleeve, and the through-hole is arranged in Circular Plate, the Circular Plate installation Between shell and burner block, the burner core is mounted in sleeve, and the quantity of the through-hole is 1~2 ring.
5. according to claim 4 be classified low NOx updrafts burner, it is characterised in that:The burner block includes collection chamber, combustion Room, multiple air flow holes and combustion chamber connector are burnt, the shape of the collection chamber is cylindric, and the inside of the combustion chamber is Cylindrical cavity, the multiple air flow hole are both provided with taper, and the one of one end of the combustion chamber and multiple air flow holes End is connected to collection chamber, and the other end of the combustion chamber is connected to combustion chamber connector, the diameter of one end of the combustion chamber More than the diameter of the other end of combustion chamber, the flow restriction baffle and connecting plate are respectively positioned in sleeve, and the flange is located at combustion chamber Interior, the quantity in the air flow hole is 2~8.
6. according to claim 2 be classified low NOx updrafts burner, it is characterised in that:The shape of the burner core ontology is Round table-like, the inside of the burner core ontology is cavity structure, the axis of the busbar and burner core ontology of the burner core ontology Between angle be θ, 0 °≤θ≤30 °, the quantity of the fan annular groove notch is n, n >=2, and n is fanned annular groove notch each along burner Core ontology it is circumferentially distributed.
7. according to claim 6 be classified low NOx updrafts burner, it is characterised in that:The quantity of the side wall circular hole be 2~ 3 rings, the integral multiple that the quantity per ring-side wall circular hole is n, wherein the axis of the axis of the first ring-side wall circular hole and burner core ontology Between angle be α, 30 °≤α≤90 °, the angle between the axis and the axis of burner core ontology of remaining each ring-side wall circular hole It is β, 15 °≤β≤75 °, the flow restriction baffle is arranged on the right side of the first ring-side wall circular hole.
8. according to claim 2 be classified low NOx updrafts burner, it is characterised in that:The end face circular hole quantity is 2~3 Ring, the end face circular hole include outer end face circular hole and inner face circular hole, axis and the burner core ontology of the outer end face circular hole Axis is parallel, and the angle between the axis and the axis of burner core ontology of the inner face circular hole is γ, and inner face circular hole edge Anticlockwise drift angle be λ, 0 °≤γ≤20 °, 0 °≤λ≤15 °.
9. according to claim 4 be classified low NOx updrafts burner, it is characterised in that:The height of the sleeve is h, described The arrival end of sleeve to the distance between connecting plate be x, 0≤x≤h/2.
10. a kind of combustion method of the low NOx updrafts burner of classification in 1-9 such as claim as described in any claim, special Sign is:The low NOx updrafts burner of the classification passes through air guide device, the side wall circular hole of burner core and the air flow of burner block Air is proportionally repeatedly mixed and burned by hole with combustion gas, it is made to reduce oxygen concentration at combustion flame center, to be formed also Originality atmosphere inhibits NOx to generate, and improves flame rigidity, reduces flame temperature, reduces the generation of NOx, to realize that industry is burnt The low emission of mouth.
CN201810353166.XA 2018-04-19 2018-04-19 Graded low NOx straight flame burner Active CN108534138B (en)

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CN201810353166.XA CN108534138B (en) 2018-04-19 2018-04-19 Graded low NOx straight flame burner

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CN108534138B CN108534138B (en) 2024-02-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110864288A (en) * 2019-11-22 2020-03-06 杭州中景科技有限公司 Low NOx wide flat flame burner

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CN205535799U (en) * 2016-01-26 2016-08-31 佛山市科皓燃烧设备制造有限公司 Low NOx of tertiary burning discharges nozzle
CN206094082U (en) * 2016-09-28 2017-04-12 上海炬联热工装备有限公司 Burner
CN207035120U (en) * 2017-07-28 2018-02-23 佛山市科皓燃烧设备制造有限公司 A kind of special low NOx burner of stainless steel annealing stove
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2729743A1 (en) * 1995-01-24 1996-07-26 Cuenod Thermotech Sa Combustion head for gas burner with forced air
CN2433525Y (en) * 2000-08-12 2001-06-06 湖南吉祥燃烧器股份有限公司 Premixing flat ring flame low NOx burner
CN2481977Y (en) * 2001-06-05 2002-03-13 彭六珠 Gas gun
US20080163614A1 (en) * 2005-08-12 2008-07-10 Proto-Technics, Inc. Turbulence Burner With Vortex Structures
CN201242159Y (en) * 2008-06-03 2009-05-20 天津阿尔法加热设备技术开发有限公司 Anti-radiation combustor for large power high temperature heating and heat processing furnace
CN101634451A (en) * 2008-07-21 2010-01-27 上海凌云瑞升燃烧设备有限公司 Low NOx stepped and staged combustion device
CN202092129U (en) * 2011-05-20 2011-12-28 中冶华天工程技术有限公司 Gas burner
CN202598516U (en) * 2012-05-29 2012-12-12 天华化工机械及自动化研究设计院 Air classification gas burner for achieving low nitrogen oxide (NOx) discharge at bottom of cracking furnace
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CN206094082U (en) * 2016-09-28 2017-04-12 上海炬联热工装备有限公司 Burner
CN207035120U (en) * 2017-07-28 2018-02-23 佛山市科皓燃烧设备制造有限公司 A kind of special low NOx burner of stainless steel annealing stove
CN208487613U (en) * 2018-04-19 2019-02-12 杭州中景科技有限公司 It is classified low NOx updraft burner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110864288A (en) * 2019-11-22 2020-03-06 杭州中景科技有限公司 Low NOx wide flat flame burner

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