CN106196058B - Ultralow NOx flame burning technologies heat-accumulating burner - Google Patents
Ultralow NOx flame burning technologies heat-accumulating burner Download PDFInfo
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- CN106196058B CN106196058B CN201610741022.2A CN201610741022A CN106196058B CN 106196058 B CN106196058 B CN 106196058B CN 201610741022 A CN201610741022 A CN 201610741022A CN 106196058 B CN106196058 B CN 106196058B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/60—Devices for simultaneous control of gas and combustion air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/66—Preheating the combustion air or gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
A kind of ultralow NOx flame burning technologies heat-accumulating burner,Including the interior aerial burner shell equipped with heat storage,Air-fuel mixing head,Air scoop in burner shell front end is set,It bakes bricks,Gas Pipe,Igniter burner,The first combustion chamber is provided in air-fuel mixing head,Gas Pipe is arranged on the outside of burner shell,The lower end of Gas Pipe is fuel gas inlet,It further include low temperature Gas Pipe,High-temperature fuel gas pipe,One end of the low temperature Gas Pipe is connected to Gas Pipe,The other end be arranged in burner shell and with the first combustion chamber,One end of high-temperature fuel gas pipe is connected to Gas Pipe,The other end, which runs through, bakes bricks and is connected to burner hearth,Low temperature Gas Pipe,The connectivity part of high-temperature fuel gas pipe and Gas Pipe is provided with low temperature gas valve,High-temperature fuel gas valve,The second combustion chamber is equipped in baking bricks,An air duct for being respectively communicated to the first combustion chamber and the second combustion chamber is equipped in burner shell,Secondary air duct.The present invention can reduce by 80 90%NOx discharges, low high-temperature heat treatment in being suitable for, while reduce the use of industrial furnace.
Description
Technical field
The present invention relates to heat-accumulating burner field, espespecially a kind of ultralow NOx flame burning technologies heat-accumulating burner.
Background technology
It is just applied early in 19th-century mid-term regenerative combustion technology, but since its regenerative chamber area occupied is big,
Commutating period is long, complicated for operation, is gradually substituted by other combustion technologies.Until the 1980s, heat storage it is small-sized
Change and commutating period shortens, just so that regenerative combustion technology obtains certain development.Currently, due to world energy sources shortage with
And the energy is non-renewable, for energy saving and reduction production cost, in heat treatment heating furnace, heat storage type combustion skill
Art obtains extensive promotion and application.Its operation principle of regenerative combustion technology is：Heat-accumulating burner is arranged in pairs, and utilizes accumulation of heat
Body makees carrier, is alternately heated by waste-gas heat, then is used to heat air or combustion gas, heat storage week by the heat that heat storage stores
Heat to phase property, heat release makes air or gas-preheating is to high temperature, not only ensure that burner hearth heating continuity but also reach energy-efficient effect
Fruit.But since heat storage is by after combustion air or gas heating to high temperature, and with combustion air or gas-preheating temperature
Be sharply increased, flame combustion temperature can also increase so that the NOx generated in combustion process also becomes more, increases to big compression ring
Pollution caused by border, the discharge capacity that domestic industry stove environmental emission standard is NOx at present are less than 150ppm in 8% oxygen content.
Therefore how to reduce NOx emission in heat-accumulating burner combustion process becomes a difficult point of regenerative combustion technology.
In addition conventional heat-accumulating burner generally can be used only in middle Low Temperature Heat Treatment stove（Furnace temperature is less than 850 DEG C）Or it can only use
In high-temperature heater（Furnace temperature is higher than 850 DEG C）, different technological temperature requires the heat accumulating type that must be equipped with different temperature in use to burn
Mouth, it is therefore necessary to additionally build many industrial furnaces, and industrial furnace takes up a large area, not only waste valuable land resource, simultaneously
Also cost of investment is caused to sharply increase.Therefore how to extend the applicability of heat-accumulating burner also becomes an emphasis.
Invention content
To solve the above problems, the present invention, which provides one kind, can effectively reduce NOx discharge, and it is low in being suitable for simultaneously
Warm processing, high-temperature heat treatment, reduce the use of a variety of industrial furnaces, reduce floor space, reduce the ultralow of investment use cost
NOx flame burning technology heat-accumulating burners.
To achieve the above object, the technical solution adopted by the present invention is：A kind of ultralow NOx flame burning technologies heat accumulating type burning
Mouth, including interior aerial burner shell equipped with heat storage, tail end is set in burner shell and is connected to burner shell air-fuel
Air scoop in burner shell front end, the burning that is arranged on the outside of air-fuel mixing head and is connected to air-fuel mixing head is arranged in mixing head
Brick, Gas Pipe, igniter burner are provided with the first combustion chamber in air-fuel mixing head, and Gas Pipe is arranged on the outside of burner shell, combustion gas
The lower end of pipe is fuel gas inlet, wherein further include low temperature Gas Pipe, high-temperature fuel gas pipe, one end of the low temperature Gas Pipe and combustion gas
The side of pipe is connected to, the other end of low temperature Gas Pipe be arranged in burner shell and with the first combustion chamber, the high temperature combustion
One end of tracheae is connected to the upper end of Gas Pipe, and the other end of high-temperature fuel gas pipe, which is arranged in burner shell and runs through, to be baked bricks and connect
Logical burner hearth, the connectivity part of low temperature Gas Pipe, high-temperature fuel gas pipe and Gas Pipe are respectively arranged with low temperature gas valve, high-temperature fuel gas valve,
It is described bake bricks in be equipped with the second combustion chamber and with the first combustion chamber, be equipped in burner shell and be respectively communicated to the first combustion chamber
And second combustion chamber air duct, a secondary air duct.
The beneficial effects of the present invention are：The present invention by be provided be suitable for burner hearth low-temperature heat low temperature Gas Pipe and
Suitable for the high-temperature fuel gas pipe of burner hearth high-temperature heating, selection can be needed to be passed through from low temperature Gas Pipe according to specific heating process temperature
Combustion gas is passed through combustion gas from high-temperature fuel gas pipe, no longer needs to additional building industry stove and ancillary equipment, reduces area occupied, reduces and throws
Use cost is provided, combustion air is classified supply by wherein low temperature Gas Pipe with setting in the first combustion chamber and burner shell
Air duct, a secondary air duct so that repeated combustion is distinguished in combustion gas, improves flame rate so that the flue gas that can be rolled up around inhaling participates in
Burning, can be effectively reduced flame combustion temperature, greatly reduce the discharge of NOx, and emission is to big in reduction combustion process
The pollution of gas；And high-temperature fuel gas pipe directly runs through burner and is connected to burner hearth, fuel and air spray into stove at high speed, and volume is inhaled
Inner flue gas of the stove participates in burning, forms ultralow NOx flame combustions in stove, and entire burner hearth is bright when ultralow NOx flame combustions, no office
Portion's thermal-flame exists, and ultralow NOx flame combustions are compared with traditional combustion, and combustion reaction is in big region, even entire burner hearth
It carries out, flame front disappears, and no localized hyperthermia's flame exists；Heat convection and radiation heat transfer efficiency improve so that warm in stove in stove
It is fabulous to spend uniformity；The generation of the pollutants such as NOx and CO substantially reduces；Ultralow NOx flame combustions can not only effectively improve heat
Utilization ratio, while NOx emission is greatly reduced, than the NOx emission that conventional heat-accumulating burner reduces 80-90%, in furnace temperature
At 1300 DEG C, about 1100 DEG C of preheated air temperature, in inner flue gas of the stove when 3% oxygen content the concentration of NOx in 30ppm hereinafter, being far below
In national flue gas when 8% oxygen content NOx emission 150ppm environmental emission standard, realize NOx ultra-low volume discharge.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Operation principle schematic diagram when Fig. 2 is low-temperature burning of the present invention；
Operation principle schematic diagram when Fig. 3 is high-temp combustion of the present invention；
Fig. 4 is the structural schematic diagram of UV detectors and igniter burner.
Drawing reference numeral explanation：1- burner shells；11- heat storages；12- air-fuel mixing heads；The first combustion chambers 121-；13- is empty
Gas port；14- igniter burners；The air duct 15-；16- secondary air ducts；17-UV detectors；18- insulating layers；19- thermal insulation layers；20-
Cooling tube；2- bakes bricks；The second combustion chambers 21-；The air ducts three times 22-；3- Gas Pipes；31- fuel gas inlets；32- low temperature Gas Pipes；
321- low temperature gas valves；33- high-temperature fuel gas pipes；331- high-temperature fuel gas valves；4- burner hearths.
Specific implementation mode
It please refers to Fig.1 shown in -3, the present invention is about a kind of ultralow NOx flame burning technologies heat-accumulating burner, including interior sets
The air-fuel mixing head for having the aerial burner shell 1 of heat storage 11, the tail end in burner shell 1 being set and is connected to burner shell 1
12, be arranged 1 front end of burner shell air scoop 13, be arranged in the outside of air-fuel mixing head 12 and be connected to air-fuel mixing head 12
It bakes bricks 2, Gas Pipe 3, igniter burner 14, the first combustion chamber 121 is provided in air-fuel mixing head 12, Gas Pipe 3 is arranged in burner
The lower end in the outside of shell 1, Gas Pipe 3 is fuel gas inlet 31, wherein further include low temperature Gas Pipe 32, high-temperature fuel gas pipe 33, it is described
One end of low temperature Gas Pipe 32 is connected to the side of Gas Pipe 3, and the other end of low temperature Gas Pipe 32 is arranged in burner shell 1 simultaneously
It is connected to the first combustion chamber 121, one end of the high-temperature fuel gas pipe 33 is connected to the upper end of Gas Pipe 3, high-temperature fuel gas pipe 33
Other end setting 2 and is connected to burner hearth 4, low temperature Gas Pipe 32, high-temperature fuel gas pipe 33 and combustion gas in the burner shell 1 and through baking bricks
The connectivity part of pipe 3 is respectively arranged with low temperature gas valve 321, high-temperature fuel gas valve 331, and described bake bricks is equipped with the second combustion chamber 21 in 2
And be connected to the first combustion chamber 121, it is equipped in burner shell 1 and is respectively communicated to the first combustion chamber 121 and the second combustion chamber 21
Air duct 15, secondary air duct 16.
Compared to existing technology, the present invention by be provided be suitable for 4 low-temperature heat of burner hearth low temperature Gas Pipe 32 and
Suitable for the high-temperature fuel gas pipe 33 that burner hearth 4 is heated at high temperature, can need to select from low temperature Gas Pipe according to specific heating process temperature
32 are passed through combustion gas or are passed through combustion gas from high-temperature fuel gas pipe 33, no longer need to additional building industry stove and ancillary equipment, reduce occupancy face
Product reduces investment use cost, and wherein low temperature Gas Pipe 32 is connected to the first combustion chamber 121 and setting will help in burner shell 1
Fire an air duct 15, the secondary air duct 16 of air classification supply so that repeated combustion is distinguished in combustion gas, improves flame rate so that
The flue gas around inhaling can be rolled up and participate in burning, flame combustion temperature can be effectively reduced, the great discharge for reducing NOx is reduced
Pollution of the emission to air in combustion process；And high-temperature fuel gas pipe 33 directly through burner and is connected to burner hearth 4, fuel and
Air sprays into stove at high speed, and volume inhales inner flue gas of the stove and participates in burning, and ultralow NOx flame combustions, ultralow NOx flames are formed in stove
Entire burner hearth is bright when burning, and no localized hyperthermia's flame exists.Ultralow NOx flame combustions are compared with traditional combustion, combustion reaction
It is carried out in big region, even in entire burner hearth 4, flame front disappears, and no localized hyperthermia's flame exists；Heat convection and spoke in stove
Heat exchange efficiency is penetrated to improve so that in-furnace temperature uniformity is fabulous；The generation of the pollutants such as NOx and CO substantially reduces；Ultralow NOx fire
Flame burning can not only effectively improve efficiency of utilization, while greatly reduce NOx emission, be reduced than conventional heat-accumulating burner
The NOx emission of 80-90%, in 1300 DEG C of furnace temperature, about 1100 DEG C of preheated air temperature, NOx when 3% oxygen content in inner flue gas of the stove
Concentration in 30ppm hereinafter, far below in national flue gas when 8% oxygen content NOx emission 150ppm environmental emission standard, realize NOx
Ultra-low volume discharge.
As the present invention more preferably embodiment, described bake bricks is additionally provided with air duct 22 three times in 2, the air duct three times 22
One end is connected to 1 other end of burner shell and is connected to burner hearth 4.
Using the above scheme, the flame that combustion gas is generated with combustion air after 21 second-time burning of the second combustion chamber is through mouth brick 2
Spray into burner hearth 4, due to generation flame speed quickly, quick flame can roll up suction partial fume, and part combustion air is from three
Secondary air duct 22 enters burner hearth 4, and the flue gas formation come is drawn through with the flame and volume generated after second-time burning and is burnt three times, flue gas is mixed into
The concentration of oxygen reduces in after-combustion process, flame combustion temperature can be further decreased, to reduce the generation of NOx.
As the present invention, more preferably embodiment, the high-temperature fuel gas pipe 33 are two.
Using the above scheme, by the way that two high-temperature fuel gas pipes 33 are arranged, combustion gas can dispersedly be entered burner hearth 4, more
It rolls up evenly and inhales flue gas participation burning in burner hearth so that exist without localized hyperthermia's flame in stove so that heat flux distribution is more uniform, no
Efficiency of utilization is only improved, while greatly reducing NOx emission.
Further include control valve, control system, UV detectors 17, the control as more preferably embodiment of the invention
Valve is arranged at fuel gas inlet 31, and the setting of the test sides of the UV detectors 17 is being baked bricks in 2, the igniter burner 14, control
Valve processed, UV detectors 17, low temperature gas valve 321, high-temperature fuel gas valve 331 are connect with control system respectively.
Using the above scheme, by fuel gas inlet 31, air scoop 13 be arranged control valve, and be arranged control system with
Igniter burner 14, control valve, UV detectors 17 connect, and can realize that the air inflow of air and combustion gas is controlled by control system,
The ignition control of igniter burner 14, and the alternation of two burners is controlled in actual use, it can by UV detectors 17
It realizes the detection to burner flame, detection signal is sent to control system, it is corresponding to other control valves by control system
Chain control ensures the safety of burner in use, and low temperature gas valve 321, high-temperature fuel gas valve 331 and control in addition is
System connection, can real root respective valves are controlled according to ignition temperature, when such as high-temp combustion, control high-temperature fuel gas valve 331 is opened,
Low-temperature burning valve 321 is closed.
As the present invention, more preferably embodiment, 1 inner wall of the burner shell are provided with insulating layer 18, the heat storage 11
It is fixed in insulating layer 18.
Using the above scheme, by the way that insulating layer 18 is arranged in 1 inner wall of burner shell, heat can will be effectively prevent to shed, carried
High heat insulating ability.
As the present invention, more preferably embodiment, the surface of the low temperature Gas Pipe 32 being arranged in burner shell 1 cover
Equipped with thermal insulation layer 19, the surface for the high-temperature fuel gas pipe 33 being arranged in burner shell 1 is arranged with cooling tube 20.
Using the above scheme, thermal insulation layer 19 is arranged with by the surface of low temperature Gas Pipe 32, in the table of high-temperature fuel gas pipe 33
Surface cover is equipped with cooling tube 20, is used to protection low temperature Gas Pipe 32, high-temperature fuel gas pipe 33 prevents high temperature from damaging.
Further, can be arranged according to specific needs it is different types of bake bricks, specifically include necking and bake bricks, open burn
Brick, flat flame are baked bricks；Wherein necking bakes bricks the second interior combustion chamber as tapered structure, passes through the second of tapered structure after fuel gas buring
High-speed flame is generated after combustion chamber, the flue gas that can be rolled up around inhaling participates in burning, can be effectively reduced flame temperature, further
Reduce the discharge of NOx；Wherein open the second interior combustion chamber of baking bricks is for gradually wide structure and cross-sectional width is more than the first combustion chamber
Cross-sectional width, form diffusion combustion, since flame speed is slower, combustion gas in the second combustion chamber of gradually wide interface after fuel gas buring
Abundant with air mixing, burning is violent, the raising furnace temperature that can be exceedingly fast, and ensures that blank reaches rolling or forging in a short time in stove
Temperature；Wherein flat flame bake bricks in the second combustion chamber 21 be tubaeform helical structure, fuel combustion spray be not updraft but
It is close to the disc flame of furnace wall uniform extension around, uniform temperature field can be caused in prodigious plane, and with very
Strong radianting capacity.
The concrete operating principle of the present invention is illustrated below.
The present invention uses in pairs, respectively symmetrically is arranged in the both sides of burner hearth and 2 is connected to burner hearth by baking bricks, this implementation
In example, bakes bricks and 2 bake bricks 2 using closed-entry, wherein the second combustion chamber 21 is tapered structure.
One, low-temperature burning（When in-furnace temperature is less than 850 DEG C）Operation principle, as shown in Figure 2：
1）Combustion gas is entered by the fuel gas inlet 31 positioned at left side Gas Pipe 3, and the control valve at fuel gas inlet 31 is beaten at this time
It opens, is located at the control valve at the fuel gas inlet 31 on right side and closes, control valve is passed through in combustion gas, into Gas Pipe 3, is located at left side
Low temperature gas valve 32 open, high-temperature fuel gas valve 33 is closed, and combustion gas enters low temperature Gas Pipe 32 from Gas Pipe 3, is fired by low temperature
Tracheae 32 enters the first combustion chamber 121；
2）Combustion air is entered by the air scoop 13 of the burner positioned at left side, and combustion air is stored by 1 inside of burner shell
Hot body 11 preheats, and the combustion air after preheating at this time enters the cavity inside burner shell 1, and a part of combustion air passes through primary
Air duct 15 enters the first combustion chamber 121 and combustion gas mixing, and passes through 14 ignition of igniter burner；The logical combustion air mistake of a part
Secondary air duct 16 enters in the second combustion chamber 21；One combustion air point enters burner hearth 4 by air duct 22 three times；
3）The unburnt gas generated after primary combustion continues forward, and combustion air enters from secondary air duct 16 bakes bricks
In 2 the second combustion chamber 21 second-time burning is formed with unburnt gas mixing；
4）The flame generated after second-time burning through bake bricks spray into burner hearth 4 in, the flame speed generated after second-time burning quickly,
Quick flame can roll up inhale partial fume flame with by the combustion air in the entrance of air duct 22 three times burner hearth 4 at burning three times；
5）The flue gas that combustion gas generates in burner hearth 4 after fully burning flows through the mouth positioned at right side in burner hearth 4
Brick 2 and three times air duct 22 enter the second combustion chamber 21, then reach air-fuel mixing head 12, part of smoke is by the first burning
Room 121 enters an air duct 15, and another part flue gas is pooled to 1 inner chamber of burner shell positioned at right side by secondary air duct 16
Then body reaches 1 inside heat storage 11 of burner shell, for high-temperature flue gas by heat storage body 11, high-temperature flue gas passes heat at this time
Become low-temperature flue gas after passing heat storage 11, the low-temperature flue gas after heat exchange is discharged from air scoop 13, and the burner of both sides is handed over
Temporary substitute is made；
6）Control valve is connected at fuel gas inlet 31, air scoop 13, and control valve, igniter burner 14, UV are detected
First 17, low temperature gas valve 321, high-temperature fuel gas valve 331 are connect with control system, and 4 both sides burner of burner hearth is set by control system
The period of work is located at the control valve, low of fuel gas inlet 31, air scoop 13 at the burner of left side for example when the work of left side burner
Warm gas valve 321 is opened, and high-temperature fuel gas valve 331 is closed, and the control valve for being located at fuel gas inlet 31 at the burner of right side is closed, air
The control valve of mouth 13 is opened, and flue gas is discharged through air scoop 13 for the burner on right side, and after the switching cycle for reaching setting, two burn
The working method of mouth switches over, at this time the work of right side burner, the smoke evacuation of left side burner, while UV detectors 17 are for detecting fire
Flame, and UV detection signals are corresponding to the control mode of other control valves chain, ensure the safety of burner in use
Property.
Two, high-temp combustion（When in-furnace temperature is higher than 850 DEG C）Operation principle, as shown in Figure 3：
1）Combustion gas is entered by the fuel gas inlet 31 positioned at left side Gas Pipe 3, and the control valve at fuel gas inlet 31 is beaten at this time
It opens, is located at the control valve at the fuel gas inlet 31 on right side and closes, control valve is passed through in combustion gas, into Gas Pipe 3, is located at left side
High-temperature fuel gas valve 33 open, low temperature gas valve 32 is closed, and combustion gas enters high-temperature fuel gas pipe 33 from Gas Pipe 3, is directly entered stove
Thorax 4；
2）Combustion air is entered by the air scoop 13 of the burner positioned at left side, and combustion air is stored by 1 inside of burner shell
Hot body 11 preheats, and the combustion air after preheating at this time enters the cavity inside burner shell 1, and combustion air passes through First air respectively
Road 15, imports burner hearth 4 behind air duct 22 at secondary air duct 16 three times；
3）Combustion gas enters with combustion air high speed in burner hearth 4, and volume inhales inner flue gas of the stove and participates in burning, and space combustion is formed in stove
It burns, entire burner hearth is bright when burning, and no localized hyperthermia's flame exists, effective to improve heat convection and radiation heat transfer effect in stove
Rate so that in-furnace temperature uniformity is fabulous, can greatly reduce NOx emission；
4）The flue gas that combustion gas generates in burner hearth after fully burning flows through the mouth brick positioned at right side in burner hearth 4
2 and air duct 22 enters the second combustion chamber 21 three times, air-fuel mixing head 12 is then reached, part of smoke passes through the first combustion chamber
121 enter an air duct 15, and another part flue gas is pooled to 1 inner chamber of burner shell positioned at right side by secondary air duct 16
Then body reaches 1 inside heat storage 11 of burner shell, for high-temperature flue gas by heat storage body 11, high-temperature flue gas passes heat at this time
Become low-temperature flue gas after passing heat storage 11, the low-temperature flue gas after heat exchange is discharged from air scoop 13, and the burner of both sides is handed over
Temporary substitute is made；
5）Control valve is connected at fuel gas inlet 31, air scoop 13, and control valve, igniter burner 14, UV are detected
First 17, low temperature gas valve 321, high-temperature fuel gas valve 331 are connect with control system, and 4 both sides burner of burner hearth is set by control system
The period of work is located at fuel gas inlet 31, the control valve of air scoop 13, height at the burner of left side for example when the work of left side burner
Warm gas valve 331 is opened, and low temperature gas valve 321 is closed, and the control valve for being located at fuel gas inlet 31 at the burner of right side is closed, air
The control valve of mouth 13 is opened, and flue gas is discharged through air scoop 13 for the burner on right side, and after the switching cycle for reaching setting, two burn
The working method of mouth switches over, at this time the work of right side burner, the smoke evacuation of left side burner, while UV detectors 17 are for detecting fire
Flame, and UV detection signals are corresponding to the control mode of other control valves chain, ensure the safety of burner in use
Property.
Embodiment of above be only the preferred embodiment of the present invention is described, not to the scope of the present invention into
Row limits, under the premise of not departing from design spirit of the present invention, technical side of this field ordinary engineering and technical personnel to the present invention
The various modifications and improvement that case is made should all be fallen into the protection domain of claims of the present invention determination.
Claims (6)
1. a kind of ultralow NOx flame burning technologies heat-accumulating burner, including interior aerial burner shell equipped with heat storage, setting exist
In burner shell tail end and be connected to burner shell air-fuel mixing head, be arranged burner shell front end air scoop, setting exist
Be connected on the outside of air-fuel mixing head and with air-fuel mixing head bake bricks, Gas Pipe, igniter burner, be provided with first in air-fuel mixing head
Combustion chamber, Gas Pipe are arranged on the outside of burner shell, and the lower end of Gas Pipe is fuel gas inlet, which is characterized in that further includes low temperature
One end of Gas Pipe, high-temperature fuel gas pipe, the low temperature Gas Pipe is connected to the side of Gas Pipe, and the other end of low temperature Gas Pipe is set
Set in burner shell and with the first combustion chamber, one end of the high-temperature fuel gas pipe is connected to the upper end of Gas Pipe, high temperature
The other end of Gas Pipe, which is arranged in burner shell and runs through, bakes bricks and is connected to burner hearth, low temperature Gas Pipe, high-temperature fuel gas pipe and combustion
The connectivity part of tracheae is respectively arranged with low temperature gas valve, high-temperature fuel gas valve, it is described bake bricks in be equipped with the second combustion chamber and with first
Combustion chamber, burner shell is interior to be equipped with air duct, a secondary air duct for being respectively communicated to the first combustion chamber and the second combustion chamber.
2. ultralow NOx flame burning technologies heat-accumulating burner according to claim 1, which is characterized in that it is described bake bricks in
It is additionally provided with air duct three times, the one end in the air duct three times is connected to the burner shell other end and is connected to burner hearth.
3. ultralow NOx flame burning technologies heat-accumulating burner according to claim 1, which is characterized in that the high temperature combustion
Tracheae is two.
4. ultralow NOx flame burning technologies heat-accumulating burner according to claim 1, which is characterized in that further include control
Valve, control system, UV detectors, the control valve are arranged at fuel gas inlet, and the test side of the UV detectors is arranged
In baking bricks, the igniter burner, control valve, UV detectors, low temperature gas valve, high-temperature fuel gas valve connect with control system respectively
It connects.
5. ultralow NOx flame burning technologies heat-accumulating burner according to claim 1, which is characterized in that the burner shell
Internal wall is provided with insulating layer, and the heat storage is fixed in insulating layer.
6. ultralow NOx flame burning technologies heat-accumulating burner according to claim 1, which is characterized in that the setting exists
The surface of low temperature Gas Pipe in burner shell is arranged with thermal insulation layer, the surface set for the high-temperature fuel gas pipe being arranged in burner shell
Equipped with cooling tube.
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| CN201610741022.2A CN106196058B (en) | 2016-08-26 | 2016-08-26 | Ultralow NOx flame burning technologies heat-accumulating burner |
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|---|---|---|---|
| CN201610741022.2A CN106196058B (en) | 2016-08-26 | 2016-08-26 | Ultralow NOx flame burning technologies heat-accumulating burner |
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| CN106196058B true CN106196058B (en) | 2018-08-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109268827A (en) * | 2017-07-17 | 2019-01-25 | 中冶长天国际工程有限责任公司 | A kind of fuel gas with low heat value burner and hot-blast stove |
| CN108087866A (en) * | 2018-01-09 | 2018-05-29 | 天津市赛洋工业炉有限公司 | A kind of ultralow NOx and high energy-saving thermal storage formula multistage burner |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05157212A (en) * | 1991-02-21 | 1993-06-22 | Nippon Furnace Kogyo Kaisha Ltd | Low nox combustion method for radiant tube burner and radiant tube burner executing the same combustion method |
| CN101285576B (en) * | 2007-05-22 | 2011-01-19 | 同济大学 | Low heat value burnt gas high-temperature air combustion system and method |
| CN202835366U (en) * | 2012-12-13 | 2013-03-27 | 彭东旭 | Novel pulse heat accumulating type combustion controller |
| CN205957173U (en) * | 2016-08-26 | 2017-02-15 | 佛山市科皓燃烧设备制造有限公司 | Ultralow NOx flame combustion technology regenerative burner |
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