CN109489035A - A kind of low NOx drainage burner - Google Patents
A kind of low NOx drainage burner Download PDFInfo
- Publication number
- CN109489035A CN109489035A CN201811618008.9A CN201811618008A CN109489035A CN 109489035 A CN109489035 A CN 109489035A CN 201811618008 A CN201811618008 A CN 201811618008A CN 109489035 A CN109489035 A CN 109489035A
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- spout
- air
- flue gas
- low nox
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
-
- 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
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
- F23D14/583—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits
-
- 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
- F23D14/70—Baffles or like flow-disturbing devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The present invention discloses a kind of low NOx drainage burner, including combustion chamber, the front end of the combustion chamber is provided with fuel gas inlet by blast tube, and the rear end of combustion chamber is then provided with flue gas spout, and the air duct with air intake is provided on the outside of the blast tube, the air port and combustion chamber which passes through setting；The rear end of the blast tube is equipped with Air guide cone by support rod.The present apparatus is simple and compact for structure, occupies little space, and is easily installed and safeguards, combustion chamber volume is smaller compared to the heating furnace burner hearth of ordinary burner, and volumetric heat intensity is greatly up to 6 × 108kJ/m3·h；And the wide reachable 1:50 of adjustable range, and ordinary burner only has 1:10, is easy to auto-control；In addition, high-temperature preheated air can be used in the present apparatus, therefore combustion temperatures can be obtained with fuel gas with low heat value, combustion chambers burn temperature is higher, close to 2000 DEG C, therefore can be suitable for most of industrial furnaces.
Description
Technical field
The present invention relates to industrial burner technical field, specifically a kind of low NOx drainage burner.
Background technique
High velocity burner is mainly used in industrial furnace.General industry furnace is for heated material and guarantees fuel completely burned
All there is a spacious burner hearth.In this way, burner hearth, which is heated to operation temperature, when blow-on needs long time, and when blowing out,
Since thermal inertia still has greatly the quite a while to continue to heat workpiece, it is difficult to control heating temperature, workpiece is easily caused to overheat.For
Prevent workpiece from overheating, common heating furnace have to run under the maximum heating temperature that slightly above workpiece is allowed, this reduces
Heating speed increases heating time, especially even more so in the close heating final temperature of workpiece.
In addition, various adverse effects can be generated by extending heating time at high temperature, the oxidation and decarburization of steel are such as caused, work is made
The shortcomings that part surface is crude and hardness reduces, therefore in order to energy saving, eliminates common heating furnace, and with modern production flowing water
Line is mating, and rapid heating technology occurs in the 1960s.Quickly heating relies primarily on convective heat transfer rather than radiant heat transfer,
Its main feature is that furnace body is small, heating speed is fast, thermal inertia is small, heating workpiece quality is high, the thermal efficiency is high and is easy to automatically control.
The key quickly heated is realized first is that transformation furnace body；Second is that using high velocity burner.High quick burning in the prior art
There are two effects for burner, first is that combustion gas is made to burn under very high calorific intensity；Second is that making high-temperature flue gas with very high flow velocity
Combustion chamber is sprayed, to increase the effect of convective heat transfer in furnace.
And domestic high velocity burner flue gas emission speed in the prior art is high subsonic speed (200~300m/s), and energy
Surmount the application that rarely has that this speed reaches ultrasonic high velocity burner, and the present invention provides a kind of high-temperature flue gas to spray speed
Degree can reach the solution of supersonic speed (340m/s or more), higher heat exchange efficiency be provided than existing product, when shortening heating
Between, while flameless combustion is realized in the combustion chamber.
Summary of the invention
Goal of the invention: in view of the deficiency of the prior art, a kind of low NOx drainage burner is provided.
Technical solution: in order to achieve the above-mentioned object of the invention, The technical solution adopted by the invention is as follows: a kind of low NOx drainage
The front end of burner, including combustion chamber, the combustion chamber is provided with fuel gas inlet by blast tube, and the rear end of combustion chamber is then set
It is equipped with flue gas spout, and is provided with the air duct with air intake on the outside of the blast tube, the air
The air port and combustion chamber that channel passes through setting；The rear end of the blast tube is equipped with air guide by support rod
Cone, the front end of the Air guide cone is set as cone structure, and the tail end of Air guide cone is then equipped with spinning disk, the end of the spinning disk
Portion is in contact with the end of blast tube；The flue gas notch setting is the conical opening and connection front and back end by front and back ends
The spout throat of conical opening is constituted；Wherein the conical opening of front end is contracted to spout throat from large to small, and after spout throat
Rear end conical opening changes from small to big again to be expanded outwardly, to constitute entire flue gas spout.
Preferably, the taper of front end conical opening is greater than the taper of rear end conical opening in the flue gas spout.
Preferably, the flue gas spout of the combustion chamber and rear side is to be piled up by heat resisting brick, and this is resistance to
Hot brick combines fixed installation using inserted seam allowance by front end heat resisting brick and rear end heat resisting brick and constitutes, so that combustion chamber is also constituted
Split type structure.
Preferably, the air port and blast tube is arranged in the heat resisting brick of chamber front end；And
The air port evenly spaced setting 6-12.
Preferably, being also provided with ceramic protective sleeve on the combustion chamber and flue gas spout.
Preferably, being additionally provided with the ignition tip and flame monitor being communicated with the outside in the combustion chamber.
Preferably, the Air guide cone, support rod and spinning disk are an integral structure, and pass through heat resisting steel or ceramic system
It forms.
The utility model has the advantages that compared with prior art, the present invention having the advantage that
(1) present apparatus is simple and compact for structure, occupies little space, and is easily installed and safeguards, combustion chamber volume is compared to common combustion
The heating furnace burner hearth of burner is smaller, and volumetric heat intensity is greatly up to 6 × 108kJ/m3·h；And the wide reachable 1:50 of adjustable range, and it is general
Logical burner only has 1:10, is easy to auto-control；In addition, high-temperature preheated air can be used in the present apparatus, therefore can be with low heat value
Combustion gas obtains combustion temperatures, and combustion chambers burn temperature is higher, close to 2000 DEG C, therefore can be suitable for most of industrial furnaces
In；
(2), strengthen heat convection, shorten heating time, ordinary burner flame speed is very low, based on radiation heat transfer
(accounting for about 80%~90%), heat convection ratio very little.The high velocity burner of the present apparatus is with turbulent flow to heating object surface
It is main；In heating furnace size, combustion product temperature, be heated the identical situation of workpiece temperature under, the high velocity burner of the present apparatus
Heat convection efficiency is 3~4 times of ordinary burner, can significantly shorten heating time, simultaneously because heat convection increases, drop
Low exhaust gas temperature, i.e. heat exchange efficiency improve, and reduce the thermal losses that flue gas is taken away；
(3) combustion chamber temperature uniformity can be improved in the burner of the present apparatus, shortens equal temperature time, the high speed of the present apparatus
Burner avoids the burning local high temperature zone of ordinary burner flame, and the red-hot air-flow of high speed sprayed can play relatively by force
Volume is inhaled and stirring action, keeps burning indoor temperature distribution more uniform, so as to shorten workpiece soaking time, improves productivity, together
When energy saving；
(4) present apparatus can reduce the concentration of emission of NOx, and compared with ordinary burner, interior flame more disperse of burning does not have
There is apparent burning local high temperature zone, forms flameless combustion, reduce the concentration of oxygen, nitrogen；Further, since taking big speed gas
Stream, burning velocity is fast, and flue gas residence time in pipeline is short, also further reduced the concentration of emission of NOx；In addition, burner
The speed of flame jet is bigger, and the indoor volume that burns is inhaled and reflux effect is stronger, is more advantageously implemented the atmosphere of hypoxemia, this
Kind relatively low combustion gas and oxygen concentration reduce the average combustion speed in entire combustion zone, have expanded combustion boundary,
Uniform temperature field is formd, and then also reduces the discharge of NOx；And burning Indoor Combustion reaction speed is fast, can be realized
Full burning, meets the necessary condition of low NOx drainage.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is left side view in Fig. 1；
Fig. 3 is right part cross-sectional view in Fig. 1.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated, and the present embodiment is with technical solution of the present invention
Premised under implemented, it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in Figure 1, Figure 2 and Figure 3, the front end of a kind of low NOx drainage burner, including combustion chamber 1, the combustion chamber 1 is logical
It crosses blast tube 2 and is provided with fuel gas inlet 3, and the rear end of combustion chamber 1 is then provided with flue gas spout 4, and the blast tube 2
Outside be provided with the air duct 6 with air intake 5, the air duct 5 by setting air port 7 and combustion
Room 1 is burnt to be connected；The rear end of the blast tube 2 is equipped with Air guide cone 9 by support rod 8, the front end setting of the Air guide cone 9
For cone structure, and the tail end of Air guide cone 9 is then equipped with spinning disk 10, the end of the spinning disk 10 and blast tube 2
End is in contact；The flue gas spout 4 is set as the conical opening by front and back ends and connects the spout larynx of front and back end conical opening
Portion is constituted；Wherein the conical opening of front end is contracted to spout throat from large to small, and the rear end conical opening after spout throat by
Small become larger expands outwardly, to constitute entire flue gas spout.
The taper of front end conical opening is greater than the taper of rear end conical opening in the flue gas spout 4；The combustion chamber 1 with
And the flue gas spout 4 of rear side is to be piled up by heat resisting brick 11, and the heat resisting brick 11 is resistance to by front end heat resisting brick and rear end
Hot brick is fixedly mounted using the combination of inserted seam allowance and is constituted, so that combustion chamber 1 also constitutes split type structure.
The air port 7 and blast tube 2 is arranged in the heat resisting brick 11 of 1 front end of combustion chamber；And it is described
Air port 7 evenly spaced setting 6-12；Ceramic protection is also provided on the combustion chamber 1 and flue gas spout 4
Set 12；The ignition tip 13 and flame monitor 14 being communicated with the outside are additionally provided in the combustion chamber 1.The air guide
Cone 9, support rod 8 and spinning disk 10 are an integral structure, and are formed by heat resisting steel or ceramic making.
The present apparatus is in use, air is passed through from air duct by spraying into the 6-12 air port being circumferentially distributed high speeds
In the included combustion chamber of burner；And combustion gas shunts after being then passed through by blast tube along Air guide cone, then is dispersed into height by spinning disk
After fast eddy flow out of, combustion gas spout enters burner included combustion chamber, then it is ignited mouth and ignites, formed with the air of convergence
Multiply flame jet substantially carries out completely burned (90% or more) in the combustion chamber.
Due to the suction of the strong volume of multiply combustion gas and the high-speed jet of air and stirring action, combustion gas and air can be uniform
Mixing makes interior flame more disperse of burning, and without local high temperature zone of significantly burning, forms flameless combustion.
And the variable cross-section flue gas spout high speed ejection that the red-hot air-flow that combustion chamber generates is constituted from two conical pipes, spout
First half is that throat changes from small to big again later to be expanded outwardly, the gas in combustion chamber from large to small to middle shrinkage to spout throat
Body is flowed into the first half of spout by high pressure, by latter half of evolution after throat.This structure can be such that the speed of air-flow cuts because of spray
The variation of area and change, make air-flow from subsonic speed to velocity of sound, until accelerate to supersonic speed.
The red-hot flue gas of indoor high temperature that burns has extremely strong erosion corrosion effect, and the service life of flue gas spout side is lower than
Air and combustion gas spout side.And the heat resisting brick of combustion chamber is made of two parts in the present apparatus, combustion chamber also mutually should be split type knot
Structure arranges the spout of air and combustion gas inside the heat resisting brick of front end, and ceramic protective sleeve, rear end heat resisting brick cloth is arranged in outlet side
Flue gas spout has been set, and ceramic protective sleeve is equally set in inside, has been combined between the heat resisting brick of front and back side using inserted seam allowance
Fixed, the heat resisting brick of rear side is rapid wear side, replacement convenient for safeguarding；And ceramic protective sleeve is arranged in the inner wall of heat resisting brick, it can be effective
Resist the erosion corrosion of the red-hot flue gas of high temperature, while replacement easy to maintain.
The present apparatus is suitable for diversified forms industrial furnace, can be integrated in burner inlet to further increase energy utilization rate
Preheater preheats room temperature combustion gas and air, reduces energy loss.For example, being mixed using producer gas or height/coke
Coal gas, calorific value is in 6000~10000kJ/Nm3, and 250 DEG C of preheating temperature, 450 DEG C of air preheat；When not preheating, using producer
Coal gas or height/coke mixed gas, calorific value is in 6000~10000kJ/Nm3, and 25 DEG C of air room temperature.
Specific embodiment is a preferred embodiment of the present invention, is not for limiting implementation and power of the invention
Sharp claimed range, the equivalence changes and modification that content described in all ranges of patent protection according to the present invention is made should all
It is included in the scope of the patent application of the present invention.
Claims (7)
1. a kind of low NOx drainage burner, it is characterised in that: the front end including combustion chamber (1), the combustion chamber (1) passes through combustion gas
Channel (2) is provided with fuel gas inlet (3), and the rear end of combustion chamber (1) is then provided with flue gas spout (4), and the combustion gas is logical
The air duct (6) with air intake (5) is provided on the outside of road (2), the sky which passes through setting
Gas blowout mouth (7) is connected with combustion chamber (1)；The rear end of the blast tube (2) is equipped with Air guide cone by support rod (8)
(9), the front end of the Air guide cone (9) is set as cone structure, and the tail end of Air guide cone (9) is then equipped with spinning disk (10), described
The end of spinning disk (10) be in contact with the end of blast tube (2)；The flue gas spout (4) is set as by front and back ends
Conical opening and connect front and back end conical opening spout throat constitute；Wherein the conical opening of front end is contracted to spout from large to small
Throat, and the rear end conical opening after spout throat changes from small to big and expands outwardly, to constitute entire flue gas spout.
2. a kind of low NOx drainage burner according to claim 1, it is characterised in that: before in the flue gas spout (4)
The taper of end toper mouth is greater than the taper of rear end conical opening.
3. a kind of low NOx drainage burner according to claim 1, it is characterised in that: the combustion chamber (1) and after
The flue gas spout (4) of side is to be piled up by heat resisting brick (11), and the heat resisting brick (11) is by front end heat resisting brick and rear end
Heat resisting brick is fixedly mounted using the combination of inserted seam allowance and is constituted, so that combustion chamber (1) also constitutes split type structure.
4. a kind of low NOx drainage burner according to claim 3, it is characterised in that: the air port (7) and
Blast tube (2) is arranged in the heat resisting brick (11) of combustion chamber (1) front end；And air port (7) interval is uniform
Setting 6-12.
5. a kind of low NOx drainage burner according to claim 3, it is characterised in that: the combustion chamber (1) and flue gas
Ceramic protective sleeve (12) are also provided on spout (4).
6. a kind of low NOx drainage burner according to claim 1, it is characterised in that: also set in the combustion chamber (1)
It is equipped with the ignition tip (13) and flame monitor (14) being communicated with the outside.
7. a kind of low NOx drainage burner according to claim 1, it is characterised in that: the Air guide cone (9), support
Bar (8) and spinning disk (10) are an integral structure, and are formed by heat resisting steel or ceramic making.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811618008.9A CN109489035A (en) | 2018-12-28 | 2018-12-28 | A kind of low NOx drainage burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811618008.9A CN109489035A (en) | 2018-12-28 | 2018-12-28 | A kind of low NOx drainage burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109489035A true CN109489035A (en) | 2019-03-19 |
Family
ID=65712816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811618008.9A Pending CN109489035A (en) | 2018-12-28 | 2018-12-28 | A kind of low NOx drainage burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109489035A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682788A (en) * | 2019-10-17 | 2021-04-20 | 芜湖美的厨卫电器制造有限公司 | Combustor and gas water heater |
| CN115355503A (en) * | 2022-08-29 | 2022-11-18 | 哈尔滨工业大学 | Gas distribution structure of head part of full-premixing surface burner |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0534685A1 (en) * | 1991-09-23 | 1993-03-31 | General Electric Company | Air staged premixed dry low NOx combustor |
| GB0709350D0 (en) * | 2007-05-15 | 2007-06-27 | Alstom Technology Ltd | Cool flame combustion |
| CN201652354U (en) * | 2010-04-20 | 2010-11-24 | 无锡南理工科技发展有限公司 | High-speed energy-saving ceramic kiln burning nozzle |
| CN101900333A (en) * | 2010-07-22 | 2010-12-01 | 黄晓华 | High-temperature low-oxygen burner |
| CN104266190A (en) * | 2014-10-09 | 2015-01-07 | 中冶南方(武汉)威仕工业炉有限公司 | Oxygen-enriched and flameless gas burner and control method thereof |
| CN106196056A (en) * | 2016-08-19 | 2016-12-07 | 陈维汉 | The burner of the temperature control low indole energy of smoke backflow and Staged Premixed Combustion |
| CN106678788A (en) * | 2016-12-01 | 2017-05-17 | 安徽科达洁能股份有限公司 | Solid powder fuel burner and combustion method |
| 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 |
| CN207350340U (en) * | 2017-06-15 | 2018-05-11 | 神雾科技集团股份有限公司 | A kind of burner of replaceable burner block for regenerative radiant tube burner |
| CN209484601U (en) * | 2018-12-28 | 2019-10-11 | 中冶京诚(扬州)冶金科技产业有限公司 | A kind of low NOx drainage burner of fuel gas with low heat value |
-
2018
- 2018-12-28 CN CN201811618008.9A patent/CN109489035A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0534685A1 (en) * | 1991-09-23 | 1993-03-31 | General Electric Company | Air staged premixed dry low NOx combustor |
| GB0709350D0 (en) * | 2007-05-15 | 2007-06-27 | Alstom Technology Ltd | Cool flame combustion |
| CN201652354U (en) * | 2010-04-20 | 2010-11-24 | 无锡南理工科技发展有限公司 | High-speed energy-saving ceramic kiln burning nozzle |
| CN101900333A (en) * | 2010-07-22 | 2010-12-01 | 黄晓华 | High-temperature low-oxygen burner |
| CN104266190A (en) * | 2014-10-09 | 2015-01-07 | 中冶南方(武汉)威仕工业炉有限公司 | Oxygen-enriched and flameless gas burner and control method thereof |
| CN106196056A (en) * | 2016-08-19 | 2016-12-07 | 陈维汉 | The burner of the temperature control low indole energy of smoke backflow and Staged Premixed Combustion |
| CN106678788A (en) * | 2016-12-01 | 2017-05-17 | 安徽科达洁能股份有限公司 | Solid powder fuel burner and combustion method |
| CN207350340U (en) * | 2017-06-15 | 2018-05-11 | 神雾科技集团股份有限公司 | A kind of burner of replaceable burner block for regenerative radiant tube 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 |
| CN209484601U (en) * | 2018-12-28 | 2019-10-11 | 中冶京诚(扬州)冶金科技产业有限公司 | A kind of low NOx drainage burner of fuel gas with low heat value |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682788A (en) * | 2019-10-17 | 2021-04-20 | 芜湖美的厨卫电器制造有限公司 | Combustor and gas water heater |
| CN115355503A (en) * | 2022-08-29 | 2022-11-18 | 哈尔滨工业大学 | Gas distribution structure of head part of full-premixing surface burner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201363728Y (en) | Air jet flow self-preheating burner nozzle | |
| CN104235849A (en) | Grading oxygen-enriched flameless combustion gas burner and control method thereof | |
| CN104266190B (en) | oxygen enrichment flameless gas burner and control method thereof | |
| SU955866A3 (en) | Apparatus for feeding and burning additional fuel in shaft furnace | |
| CN110469851A (en) | A kind of low nitrogen non-oxidation burner of self-preheating type flue gas self-circulation type | |
| CN109489035A (en) | A kind of low NOx drainage burner | |
| CN209484601U (en) | A kind of low NOx drainage burner of fuel gas with low heat value | |
| US4060380A (en) | Furnace having burners supplied with heated air | |
| CN104132343B (en) | A kind of radiant tube burner | |
| JPH01500049A (en) | Annular nozzle burner and method of using the annular nozzle burner | |
| CN106051759B (en) | Multi-stage separation central backflow formula axial rotational flow burner | |
| CN100439798C (en) | Gas burning premixing high speed burning nozzle | |
| CN105531541B (en) | For burn gas fuel or fluid combustion device assembly and method | |
| CN209484594U (en) | A kind of high heating value high velocity burner | |
| CN206669731U (en) | A kind of premixed high-speed jet burner | |
| CN109253630A (en) | A kind of two-stage exchanges heat low NOx self preheating burner | |
| CN109539252A (en) | A kind of high velocity burner | |
| CN203534218U (en) | Recovery and utilization system for heat of flue gas discharged from normalizing treatment | |
| CN111237758B (en) | Combustion device for premixed airflow high-speed rotational flow jet flue gas backflow low-nitrogen combustion | |
| CN110454786A (en) | A kind of low nitrogen non-oxidation burner of flue gas self-circulation type | |
| CN105886752A (en) | Thermal treatment furnace for steel wires | |
| CN205917314U (en) | Steel wire heat treatment stove | |
| CN115013813A (en) | Non-premixed burner for gas with ultra-low heat value | |
| CN205119066U (en) | High combustion rate burner | |
| CN106047377B (en) | A kind of quirk of pyrolysis oven, pyrolysis oven and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |