[go: up one dir, main page]

CN204084375U - Staged Oxygen-enriched Flameless Combustion Gas Burner - Google Patents

Staged Oxygen-enriched Flameless Combustion Gas Burner Download PDF

Info

Publication number
CN204084375U
CN204084375U CN201420581124.9U CN201420581124U CN204084375U CN 204084375 U CN204084375 U CN 204084375U CN 201420581124 U CN201420581124 U CN 201420581124U CN 204084375 U CN204084375 U CN 204084375U
Authority
CN
China
Prior art keywords
air
fuel
secondary air
combustion
precombustion chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201420581124.9U
Other languages
Chinese (zh)
Inventor
李卫杰
刘豪
周末
段殿勇
涂垚杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wisdri Wuhan Thermal Industry Co ltd
Original Assignee
Wisdri Wuhan Wis Industrial Furnace Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wisdri Wuhan Wis Industrial Furnace Co Ltd filed Critical Wisdri Wuhan Wis Industrial Furnace Co Ltd
Priority to CN201420581124.9U priority Critical patent/CN204084375U/en
Application granted granted Critical
Publication of CN204084375U publication Critical patent/CN204084375U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Abstract

The utility model discloses a hierarchical oxygen boosting flameless combustion gas nozzle, including combustor casing, air distribution plate, precombustion chamber, overgrate air spray tube and fuel spray tube, wherein, be equipped with the passageway that runs through in its wall body on the brickwork of heating furnace, the combustor casing install in one side of passageway, space in the passageway forms the precombustion chamber, be provided with combustion-supporting air passageway on the combustor casing, be equipped with the fuel passageway on the fuel spray tube, be equipped with air inlet and fuel inlet on the air distribution plate, the overgrate air spray tube is equipped with a plurality ofly, and the overgrate air spray tube is equipped with the overgrate air passageway that is arranged in letting in oxygen boosting air or air in to the furnace of heating furnace, and the overgrate air spray tube runs through on the brickwork of heating furnace and the furnace intercommunication of overgrate air passageway. The utility model provides a hierarchical oxygen boosting flameless combustion gas nozzle optimizes the interior temperature distribution of stove, has reduced NOx's emission simultaneously.

Description

Classification oxygen enrichment flameless combustion fuel burner nozzle
Technical field
The utility model relates to the field of combustion equipment of gaseous fuel, particularly relates to a kind of classification oxygen enrichment flameless combustion fuel burner nozzle.
Background technology
Iron and steel heating furnace mostly using hydrocarbon fuel gas if blast furnace gas, coke-stove gas, natural gas, producer gas and mixed gas etc. are as fuel.Realize oxygen-enriched combusting by the oxygen concentration that improves in regular air, ignition temperature, raising combustion temperature in hearth and heat transfer efficiency, minimizing flue gas loss can be reduced, it is not only expanded on heating furnace the source of fuel, and make the efficiency utilization of the low calorie fuels such as blast furnace gas become possibility, effectively can solve the oxygen dissipation issues existed in steel manufacture process simultaneously.But for heating furnace, if simply mix oxygenized air combustion supporting or operation improper use on normal air fuel burner, the drop of the flame can be caused on the contrary, there is localized hyperthermia, in-furnace temperature distribution can be destroyed time serious, cause NOx emission to raise, oxidization burning loss and slag amount increase, and have negative impact to the quality that iron and steel is produced.
In addition, in heating furnace, owing to being subject to CO in furnace gas 2, H 2o, SO 2and O 2oxidation, inevitably iron and steel oxidative phenomena occurs, i.e. oxidization burning loss, approximately often heats once, is oxidized to iron scale with regard to the iron and steel having 0.5% ~ 3%.The formation of oxide layer has material impact to the heating quality of steel billet and productive rate, due to thermal conductivity ratio iron and steel low of iron scale, make the heat transfer condition of steel billet become deterioration, thus reduces the quality of production of steel, add fuel consumption.Heating steel billet quality is relevant with fire box temperature, oven cavity atmosphere and heating steel billet time.Temperature is too high, oxidizing atmosphere and the heat time is long etc. that factor all can cause billet oxidization burning loss to increase the weight of; And the too low steel billet that can cause of furnace temperature can not " be grilled thoroughly ", cause section thermal (temperature difference) stress, increase rolling difficulty.
Along with energy-consuming is growing, the raising of environmental protection consciousness and the continuous pursuit to control of industrial furnace home; development of new efficient heating stove combustion technology; optimize in-furnace temperature distribution, shorten the heat time, improve the thermal efficiency; reduce discharged nitrous oxides; promote the efficiency utilization of low-heat value gas, improve heating product quality, reduce oxidization burning loss; for iron and steel enterprise's energy-saving and emission-reduction and even the technological progress promoting steel industry, have important practical significance and wide application prospect.
Utility model content
Main purpose of the present utility model is to provide a kind of classification oxygen enrichment flameless combustion fuel burner nozzle, is intended to optimize in-furnace temperature distribution, reduces the discharge of NOx simultaneously.
For achieving the above object, the utility model provides a kind of classification oxygen enrichment flameless combustion fuel burner nozzle, comprises burner shell, air-distributing disc, precombustion chamber, Secondary Air jet pipe and fuel nozzle, wherein,
The furnace wall of heating furnace is provided with the passage through its body of wall, burner shell is installed on the side of described passage, space in described passage forms described precombustion chamber, described burner shell is provided with combustion air passage, described air-distributing disc is installed on described burner shell afterbody, described fuel nozzle is interspersed on burner shell, described fuel nozzle is provided with the fuel channel be communicated with described precombustion chamber, described air-distributing disc is provided with the First air import with described combustion air path outlet, and with the fuel inlet of described blast tube outlet, combustion-supporting gas and fuel enter described precombustion chamber respectively through after described combustion air passage and fuel channel by described air-distributing disc, described Secondary Air jet pipe is provided with multiple, described Secondary Air jet pipe is provided with the secondary air channel for passing into oxygen-enriched air or air in the burner hearth of heating furnace, described Secondary Air jet pipe on the furnace wall of heating furnace and described secondary air channel be communicated with the burner hearth of heating furnace.
Preferably, described fuel channel is direct current channel, and described First air import is eddy flow passage.
Preferably, described air-distributing disc comprises the coaxial interior hub of setting and the swirl vane of outer protective cover and the described interior hub of multiple connection and outer protective cover, described fuel inlet is positioned on described hub, and the gap often between adjacent two swirl vanes forms the First air import being used for passing through for First air; Described swirl vane quantity is 4 to 8, and the inclination angle of described swirl vane is 30 to 60 degree.
Preferably, described classification oxygen enrichment flameless combustion fuel burner nozzle also comprises the First air valve for controlling its combustion air current amount be installed on described burner shell, and is positioned at the Secondary Air valve for controlling its combustion air current amount on described Secondary Air jet pipe.
Preferably, described precombustion chamber is flaring truncated cone-shaped cavity, and the flared end of described precombustion chamber is positioned at its burner hearth side near heating furnace, and the necking end of described precombustion chamber is provided with described air-distributing disc.
Preferably, multiple described Secondary Air jet pipe is uniformly distributed at the circumferencial direction of described precombustion chamber.
Preferably, distance between the shower nozzle of described Secondary Air jet pipe and the outlet of described precombustion chamber is 20 to 100mm, described Secondary Air jet pipe is installed on the adjustable angle on the furnace wall of heating furnace, and between the axis of described Secondary Air jet pipe and the axis of described fuel nozzle, angle is 0 ~ 10 degree.
Preferably, described fuel nozzle, air-distributing disc and precombustion chamber are coaxially arranged.
The classification oxygen enrichment flameless combustion fuel burner nozzle that the utility model proposes, has the following advantages:
1) do not need high-temperature heat accumulation and commutation in the process of igniting, the reliability of device strengthens, and its combustion-supporting gas can be air and oxygen-enriched air, and fuel value is unrestricted simultaneously, thus makes the low calorie fuels such as blast furnace gas can efficiency utilization.
2) in this burner, combustion-supporting gas can adopt oxygen and air to shift to an earlier date the mode of premix, can change oxygen-rich concentration according to the difference of heating furnace thermal regulation, to adapt to the demand of different heating material to different temperatures level.
3) this burner is by arranging First air import and Secondary Air jet pipe, the two is provided separately, thus can realize carrying out independent control to First air and Secondary Air, the Secondary Air of Secondary Air jet pipe ejection directly can spray into burner hearth, expand the region of combustion reaction, the effect of even dispersion burning can be reached, be conducive to heating the entirety of steel billet.
4) this burner has good atmosphere modulability and fuel tolerance, for different oxygen concentrations and fuel value, incorporation time and the place of Secondary Air and fuel is controlled by the speed of adjustment Secondary Air jet pipe, jet length and angle, to control flame temperature and the length of flame, obtain desirable fire box temperature distribution, reduce localized hyperthermia's focus, impel fire box temperature to be evenly distributed, improve heating quality and the speed of steel billet, eliminate the problem causing oxidization burning loss to increase because temperature is too high.
5) this burner combines the technology such as oxygen-enriched combusting, fractional combustion and flue gas dilution burning, combustion reaction is distributed to two regions to carry out, because the burning initial stage is in reducing atmosphere, although the burning later stage is oxidizing atmosphere, but high temperature gases recirculating makes the oxygen concentration of reaction zone be diluted, thus make combustion-supporting gas be air or oxygen-enriched air time NOx emission be all inhibited.Therefore, under the prerequisite retaining oxygen-enriched combusting plurality of advantages, temperature distribution evenness can be improve, achieves the object of low NOx drainage simultaneously.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the utility model classification oxygen enrichment flameless combustion fuel burner nozzle preferred embodiment;
Fig. 2 is the partial structurtes schematic diagram of the classification oxygen enrichment flameless combustion fuel burner nozzle left direction shown in Fig. 1;
Fig. 3 is the principle schematic of the utility model classification oxygen enrichment flameless combustion fuel burner nozzle preferred embodiment;
Fig. 4 is the structural representation of air-distributing disc in the utility model classification oxygen enrichment flameless combustion fuel burner nozzle.
In figure: 10-burner shell, 20-air-distributing disc, 30-precombustion chamber, 40-Secondary Air jet pipe, 50-fuel nozzle, 60-furnace wall, 11-combustion air passage, the import of 21-First air, 22-fuel inlet, hub in 201-, 202-outer protective cover, 203-swirl vane.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
It should be noted that, in description of the present utility model, term " transverse direction ", " longitudinal direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, be not indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
See figures.1.and.2, Fig. 1 is the sectional structure schematic diagram of the utility model classification oxygen enrichment flameless combustion fuel burner nozzle preferred embodiment; Fig. 2 is the partial structurtes schematic diagram of the classification oxygen enrichment flameless combustion fuel burner nozzle left direction shown in Fig. 1.
In this preferred embodiment, classification oxygen enrichment flameless combustion fuel burner nozzle comprises burner shell 10, air-distributing disc 20, precombustion chamber 30, Secondary Air jet pipe 40 and fuel nozzle 50, wherein,
The furnace wall 60 of heating furnace is provided with the passage through its body of wall, burner shell 10 is installed on the side of passage, space in passage forms precombustion chamber 30, described burner shell 10 is provided with combustion air passage 11, described air-distributing disc 20 is installed on described burner shell 10 afterbody, described fuel nozzle 50 is interspersed on burner shell 10, described fuel nozzle 50 is provided with the fuel channel be communicated with described precombustion chamber, described air-distributing disc 20 is provided with the First air import 21 with described combustion air path outlet, and with the fuel inlet 22 of described blast tube outlet, combustion-supporting gas and fuel enter precombustion chamber 30 respectively through after described combustion air passage and fuel channel by described air-distributing disc 20, Secondary Air jet pipe 40 is provided with multiple, Secondary Air jet pipe 40 is provided with the secondary air channel for passing into oxygen-enriched air or air in the burner hearth of heating furnace, Secondary Air jet pipe 40 on the furnace wall 60 of heating furnace and secondary air channel be communicated with the burner hearth of heating furnace.The furnace wall 60 of heating furnace uses refractory brick to make.Below being all called for short the combustion-supporting gas entered in precombustion chamber 30 through First air import 21 is First air, and the combustion-supporting gas entered in the burner hearth of heating furnace through Secondary Air jet pipe 40 is Secondary Air.Air-distributing disc 20 is fixedly connected with burner shell 10.Classification nonflame oxygen rich fuel gas burner also comprises the First air valve for controlling its combustion air current amount be installed on burner shell 10, and is positioned at the Secondary Air valve for controlling its combustion air current amount on Secondary Air jet pipe 40.Secondary Air jet pipe 40 is movably installed on the furnace wall 60 of heating furnace, to adjust setting angle and the insertion depth of Secondary Air jet pipe 40.
Further, fuel channel is direct current channel, and First air import 21 is eddy flow passage.The First air import 21 of eddy flow channel design and the fuel channel of direct current channel with the use of, make this burner when passing into First air, fuel low in calories wrap up by rotary air, its ignition and steady combustion all gets a promotion.
Particularly, with reference to Fig. 4, air-distributing disc 20 comprises the swirl vane 203 of hub 201 and outer protective cover 202 in the coaxial interior hub 201 that arranges and outer protective cover 202 and multiple connection, fuel inlet 22 is positioned on hub 201, and the gap often between adjacent two swirl vanes 203 forms the First air import 21 being used for passing through for First air.Swirl vane 203 quantity is 4 to 8, and the inclination angle of swirl vane 203 is 30 to 60 degree.Interior hub 201, outer protective cover 202 and swirl vane 203 are formed in one.Multiple swirl vane 203 is distributed between interior hub 201 and outer protective cover 202 equably.
What pass in Secondary Air jet pipe 40 can be air or oxygen-enriched air.What enter combustion-supporting gas in precombustion chamber 30 through combustion air passage 11 can be air or oxygen-enriched air.Particularly, the combustion-supporting tolerance controlling to pass into Secondary Air jet pipe 40 is 50% to 80% of total combustion-supporting tolerance, in Secondary Air jet pipe 40, the jet velocity of combustion-supporting gas is 45 ~ 180m/s, to realize under the prerequisite of oxygen-enriched combusting, improve temperature distribution evenness, meanwhile, the object reducing NOx discharge is achieved.Total combustion-supporting tolerance refers to that the combustion-supporting tolerance in First air import 21 adds the combustion-supporting tolerance passed in Secondary Air jet pipe 40.
With reference to Fig. 3, the course of work of this classification oxygen enrichment flameless combustion fuel burner nozzle is as follows:
First, the combustion air current amount controlling Secondary Air jet pipe 40 is zero (by Secondary Air Valve controlling), control combustion-supporting gas to enter in precombustion chamber 30 through the combustion air passage 11 of burner shell 10 successively and (open First air valve), fuel to enter precombustion chamber 30 from the fuel channel of fuel nozzle 50 and lights a fire, and First air and fuel carry out preliminary mixed combustion in precombustion chamber 30;
When the fire box temperature of heating furnace is increased to preset temperature (in the present embodiment, preset temperature is 800 DEG C), control combustion-supporting gas and inject burner hearth (now First air valve stays open) through Secondary Air jet pipe 40, due to the ejector action of Secondary Air, interruption-forming low-pressure area is gone out in precombustion chamber 30, entrainment the high-temperature flue gas of burner hearth afterbody and the imperfect combustion high-temperature fuel of precombustion chamber 30 outlet, flue gas dilutes high-temperature fuel and Secondary Air, and precombustion chamber 30 exports high-temperature flue gas further mixed combustion by entrainmenting of high-temperature fuel and burner hearth afterbody.
When combustion-supporting gas only enters from First air import 21, due to combustion air quantity not sufficient, what formed in precombustion chamber 30 is reducing atmosphere, now inhibit high temperature, simultaneously, part of fuel combustion heat release and make fuel entirety obtain preheating, when Secondary Air injects burner hearth at a high speed through Secondary Air jet pipe 40, entrainments the high-temperature fuel of inner side and the high-temperature flue gas in outside.After flue gas dilutes Secondary Air and fuel, combustion rate is weakened, and ignition temperature peak value declines, and meanwhile, combustion reaction region expands, and temperature distribution evenness is improved, and then the formation of thermal NO x is suppressed.
The classification oxygen enrichment flameless combustion fuel burner nozzle that the present embodiment proposes, has the following advantages:
1) do not need high-temperature heat accumulation and commutation in the process of igniting, the reliability of device strengthens, and its combustion-supporting gas can be air and oxygen-enriched air, and fuel value is unrestricted, thus makes the low calorie fuels such as blast furnace gas can efficiency utilization.
2) in this burner, combustion-supporting gas can adopt oxygen and air to shift to an earlier date the mode of premix, changes oxygen-rich concentration, to adapt to the demand of different heating material to different temperatures level according to the difference of heating furnace thermal regulation.
3) this burner is by arranging First air import 21 and Secondary Air jet pipe 40, the two is provided separately, thus can realize carrying out independent control to First air and Secondary Air, the Secondary Air that Secondary Air jet pipe 40 sprays directly can spray into burner hearth, expand the region of combustion reaction, reach the effect of even dispersion burning, be conducive to heating the entirety of steel billet.
4) this burner has good atmosphere modulability and fuel tolerance, for different oxygen concentrations and fuel value, by the speed of adjustment Secondary Air jet pipe 40, jet length and angle, thus control incorporation time and the place of Secondary Air and fuel, reach the object controlling flame temperature and the length of flame, thus obtain desirable fire box temperature distribution, reduce localized hyperthermia's focus, fire box temperature is impelled to be evenly distributed, improve heating quality and the speed of steel billet, eliminate the problem causing oxidization burning loss to increase because temperature is too high.
5) this burner combines the technology such as oxygen-enriched combusting, fractional combustion and flue gas dilution burning, combustion reaction is distributed in two regions (i.e. precombustion chamber 30 and burner hearth) and carries out, because burning initial stage (when Secondary Air is not injected) is in reducing atmosphere, burning later stage (when Secondary Air is injected) is although be oxidizing atmosphere, but high temperature gases recirculating makes the oxygen concentration of reaction zone be diluted, thus make combustion-supporting gas be air or oxygen-enriched air time, the discharge of NOx is all inhibited.Therefore, under the prerequisite retaining oxygen-enriched combusting plurality of advantages, temperature distribution evenness can be improve, achieves the object of low NOx drainage simultaneously.
Further, precombustion chamber 30 is flaring truncated cone-shaped cavity, and the flared end of precombustion chamber 30 is positioned at its burner hearth side near heating furnace, and the necking end of precombustion chamber 30 is provided with air-distributing disc 20, the precombustion chamber 30 of this structure is advantageously in the homogenous combustion of flame.
Further, multiple Secondary Air jet pipe 40 is uniformly distributed at the circumferencial direction of precombustion chamber 30.Two or four Secondary Air jet pipe 40 can be set.The radius of a circle that multiple Secondary Air jet pipe 40 is formed is slightly larger than precombustion chamber 30 exit radius.Now, can further improve the uniformity of fire box temperature distribution.
Further, distance between the shower nozzle of Secondary Air jet pipe 40 and the outlet of precombustion chamber 30 is 20 to 100mm, Secondary Air jet pipe 40 is installed on the adjustable angle on the furnace wall 60 of heating furnace, between the axis of Secondary Air jet pipe 40 and the axis of fuel nozzle 50 angle for 0 ~ 10 degree (but Secondary Air jet pipe 40 namely shown in Fig. 1 both its shower nozzle be inclined upwardly to install also can downward-slopingly install), according to composition (referring to the number of oxygen content) and the fuel value of combustion-supporting gas, control the speed of combustion-supporting gas in Secondary Air jet pipe 40, the relative distance that the setting angle of Secondary Air jet pipe 40 and Secondary Air jet pipe 40 export with precombustion chamber 30.Controlled by above-mentioned parameter, when can make burning to entrainment effect best, flue gas to high-temperature fuel and Secondary Air dilute effective, thus reduce the discharge of NOx further, fire box temperature distributed more even.
Further, fuel nozzle 50, air-distributing disc 20 and precombustion chamber 30 are coaxially arranged.Now, reduce the difficulty that this burner is installed and keeped in repair on the one hand, be conducive to the symmetrical of flame on the other hand.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure transformation utilizing the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (8)

1. a classification oxygen enrichment flameless combustion fuel burner nozzle, is characterized in that, comprises burner shell, air-distributing disc, precombustion chamber, Secondary Air jet pipe and fuel nozzle, wherein,
The furnace wall of heating furnace is provided with the passage through its body of wall, burner shell is installed on the side of described passage, space in described passage forms described precombustion chamber, described burner shell is provided with combustion air passage, described air-distributing disc is installed on described burner shell afterbody, described fuel nozzle is interspersed on burner shell, described fuel nozzle is provided with the fuel channel be communicated with described precombustion chamber, described air-distributing disc is provided with the First air import with described combustion air path outlet, and with the fuel inlet of described blast tube outlet, combustion-supporting gas and fuel enter described precombustion chamber respectively through after described combustion air passage and fuel channel by described air-distributing disc, described Secondary Air jet pipe is provided with multiple, described Secondary Air jet pipe is provided with the secondary air channel for passing into oxygen-enriched air or air in the burner hearth of heating furnace, described Secondary Air jet pipe on the furnace wall of heating furnace and described secondary air channel be communicated with the burner hearth of heating furnace.
2. classification oxygen enrichment flameless combustion fuel burner nozzle as claimed in claim 1, it is characterized in that, described fuel channel is direct current channel, and described First air import is eddy flow passage.
3. classification oxygen enrichment flameless combustion fuel burner nozzle as claimed in claim 2, it is characterized in that, described air-distributing disc comprises the coaxial interior hub of setting and the swirl vane of outer protective cover and the described interior hub of multiple connection and outer protective cover, described fuel inlet is positioned on described hub, and the gap often between adjacent two swirl vanes forms the First air import being used for passing through for First air; Described swirl vane quantity is 4 to 8, and the inclination angle of described swirl vane is 30 to 60 degree.
4. classification oxygen enrichment flameless combustion fuel burner nozzle as claimed in claim 1, it is characterized in that, also comprise the First air valve for controlling its combustion air current amount be installed on described burner shell, and be positioned at the Secondary Air valve for controlling its combustion air current amount on described Secondary Air jet pipe.
5. as the classification oxygen enrichment flameless combustion fuel burner nozzle in Claims 1-4 as described in any one, it is characterized in that, described precombustion chamber is flaring truncated cone-shaped cavity, and the flared end of described precombustion chamber is positioned at its burner hearth side near heating furnace, and the necking end of described precombustion chamber is provided with described air-distributing disc.
6. classification oxygen enrichment flameless combustion fuel burner nozzle as claimed in claim 5, it is characterized in that, multiple described Secondary Air jet pipe is uniformly distributed at the circumferencial direction of described precombustion chamber.
7. classification oxygen enrichment flameless combustion fuel burner nozzle as claimed in claim 1, it is characterized in that, distance between the shower nozzle of described Secondary Air jet pipe and the outlet of described precombustion chamber is 20 to 100mm, described Secondary Air jet pipe is installed on the adjustable angle on the furnace wall of heating furnace, and between the axis of described Secondary Air jet pipe and the axis of described fuel nozzle, angle is 0 ~ 10 degree.
8. classification oxygen enrichment flameless combustion fuel burner nozzle as claimed in claim 5, it is characterized in that, described fuel nozzle, air-distributing disc and precombustion chamber are coaxially arranged.
CN201420581124.9U 2014-10-09 2014-10-09 Staged Oxygen-enriched Flameless Combustion Gas Burner Expired - Lifetime CN204084375U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420581124.9U CN204084375U (en) 2014-10-09 2014-10-09 Staged Oxygen-enriched Flameless Combustion Gas Burner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420581124.9U CN204084375U (en) 2014-10-09 2014-10-09 Staged Oxygen-enriched Flameless Combustion Gas Burner

Publications (1)

Publication Number Publication Date
CN204084375U true CN204084375U (en) 2015-01-07

Family

ID=52177089

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420581124.9U Expired - Lifetime CN204084375U (en) 2014-10-09 2014-10-09 Staged Oxygen-enriched Flameless Combustion Gas Burner

Country Status (1)

Country Link
CN (1) CN204084375U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235849A (en) * 2014-10-09 2014-12-24 中冶南方(武汉)威仕工业炉有限公司 Staged oxygen-enriched flameless combustion gas burner and control method thereof
CN110030554A (en) * 2019-05-09 2019-07-19 重庆赛迪热工环保工程技术有限公司 A kind of oxygen-enriched flat flame burner and application method
CN110056864A (en) * 2019-04-25 2019-07-26 辽宁石油化工大学 A kind of gaseous fuel low NO
CN110145741A (en) * 2019-06-03 2019-08-20 重庆赛迪热工环保工程技术有限公司 An Oxygen-enriched Burner Applicable to Various Calorific Value Coal Gases

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235849A (en) * 2014-10-09 2014-12-24 中冶南方(武汉)威仕工业炉有限公司 Staged oxygen-enriched flameless combustion gas burner and control method thereof
CN104235849B (en) * 2014-10-09 2017-02-01 中冶南方(武汉)威仕工业炉有限公司 Staged oxygen-enriched flameless combustion gas burner and control method thereof
CN110056864A (en) * 2019-04-25 2019-07-26 辽宁石油化工大学 A kind of gaseous fuel low NO
CN110030554A (en) * 2019-05-09 2019-07-19 重庆赛迪热工环保工程技术有限公司 A kind of oxygen-enriched flat flame burner and application method
CN110030554B (en) * 2019-05-09 2024-02-23 重庆赛迪热工环保工程技术有限公司 Oxygen-enriched flat flame burner and use method thereof
CN110145741A (en) * 2019-06-03 2019-08-20 重庆赛迪热工环保工程技术有限公司 An Oxygen-enriched Burner Applicable to Various Calorific Value Coal Gases

Similar Documents

Publication Publication Date Title
CN104235849B (en) Staged oxygen-enriched flameless combustion gas burner and control method thereof
CN104266190B (en) Oxygen-enriched flameless gas burner and control method thereof
CN204084374U (en) Oxygen-enriched flameless gas burner
CN202092129U (en) Gas burner
CN106196056B (en) The burner of smoke backflow indole energy low with the temperature control of Staged Premixed Combustion
CN103277795A (en) Gas burner capable of adjusting gas to be self-recycling
CN204141584U (en) Burner
CN106402861B (en) The ultralow indole energy spiral combustion head of industrial combustion gas and burner
CN206648031U (en) Nonflame sprays oxygen low NOx burner
CN104964282A (en) Double-preheating environmental protection combustor for tube heating furnace and applications thereof
CN204084375U (en) Staged Oxygen-enriched Flameless Combustion Gas Burner
CN205447747U (en) Ultralow NOx combustor of hot flue gas self -loopa type
CN101694297A (en) Forced-draft burner and method for regularizing side-combustion high-temperature preheated air of square-box furnace
CN111780106B (en) Flameless burner of steel rolling heating furnace and application thereof
CN204704817U (en) A kind of low nitrogen oxide gas burner
CN204100244U (en) A kind of gas oxygen-enriched combustion-supporting premixed swirl combustion device
CN206222308U (en) The ultralow indole energy spiral combustion head of industrial combustion gas and burner
CN110410787A (en) A hydrogen water vapor oxygen-enriched flameless burner
CN204987008U (en) Bispin STREAMING low heat value gas combustion ware
CN101812582A (en) Steel wire heat processing naked-flame furnace
CN204534584U (en) The two preheating environmental protection burner of a kind of tubular heater
CN110056869B (en) Burner
CN202125949U (en) Efficient combustor
CN207514902U (en) One kind is used for pulverized-coal fired boiler flat flow oxygen-enriched burner device
CN103900083A (en) Fuel gas burner used for glass melting furnace

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CP03 Change of name, title or address

Address after: 430205 No. 33 University Park Road, Donghu Development Zone, Wuhan City, Hubei Province

Patentee after: WISDRI (WUHAN) THERMAL INDUSTRY Co.,Ltd.

Address before: 430205 No. 33 University Park Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province

Patentee before: WISDRI (WUHAN) WIS INDUSTRIAL FURNACE Co.,Ltd.

CP03 Change of name, title or address
CX01 Expiry of patent term

Granted publication date: 20150107

CX01 Expiry of patent term