CN106196058A - Ultralow NOx flame burning technology heat-accumulating burner - Google Patents
Ultralow NOx flame burning technology heat-accumulating burner Download PDFInfo
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- CN106196058A CN106196058A CN201610741022.2A CN201610741022A CN106196058A CN 106196058 A CN106196058 A CN 106196058A CN 201610741022 A CN201610741022 A CN 201610741022A CN 106196058 A CN106196058 A CN 106196058A
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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
nullA kind of ultralow NOx flame burning technology heat-accumulating burner，The aerial burner shell of heat storage it is provided with in including、Air-fuel mixing head、It is arranged on the air scoop of burner shell front end、Bake bricks、Gas Pipe、Igniter burner，The first combustor it is provided with in air-fuel mixing head，Gas Pipe is arranged on outside burner shell，The lower end of Gas Pipe is fuel gas inlet，Also include low temperature Gas Pipe、High-temperature fuel gas pipe，One end of described low temperature Gas Pipe connects with Gas Pipe，The other end be arranged in burner shell and with the first combustion chamber，One end of high-temperature fuel gas pipe connects with Gas Pipe，The other end runs through bakes bricks and connects burner hearth，Low temperature Gas Pipe、High-temperature fuel gas pipe is provided with low temperature gas valve with the connectivity part of Gas Pipe、High-temperature fuel gas valve，The second combustor it is provided with in baking bricks，The air channel being respectively communicated to the first combustor and the second combustor it is provided with in burner shell、Secondary air duct.The present invention can reduce by 80 90%NOx discharge, it is adaptable in low high-temperature heat treatment, reduce the use of industrial furnace simultaneously.
Description
Technical field
The present invention relates to heat-accumulating burner field, a kind of ultralow NOx flame burning technology heat-accumulating burner.
Background technology
Just applied as far back as 19th-century regenerative combustion technology in mid-term, but owing to its regenerator area occupied is big,
Commutating period is long, operation complexity, is gradually substituted by other combustion technologies.Until the 1980s, heat storage small-sized
Change and commutating period shortens, just make regenerative combustion technology obtain certain development.At present, due to world energy sources shortage with
And the energy is non-renewable, in order to save the energy and reduce production cost, in heat treatment heating furnace, heat storage type combustion skill
Art obtains promotion and application widely.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 the heat stored by heat storage is used for adding hot-air or combustion gas, heat storage week
The heating of phase property ground, heat release make air or gas-preheating to high temperature, not only ensure that seriality that burner hearth heats but also have reached energy-conservation effect
Really.But owing to heat storage is by after combustion air or gas heating to high temperature, and along with combustion air or gas-preheating temperature
Significantly rising, flame combustion temperature also can raise so that in combustion process produce NOx also become many, increase big compression ring
The pollution that border is caused, current domestic industry stove environmental emission standard is that the discharge capacity of NOx is less than 150ppm when 8% oxygen content.
The most how to reduce NOx emission in heat-accumulating burner combustion process and become a difficult point of regenerative combustion technology.
In addition conventional heat-accumulating burner typically can be used only in middle Low Temperature Heat Treatment stove (furnace temperature is less than 850 DEG C) and maybe can only use
At high-temperature heater (furnace temperature is higher than 850 DEG C), different technological temperatures requires that must be equipped with the different heat accumulating type using temperature burns
Mouth, it is therefore necessary to extra many industrial furnaces of building, and industrial furnace floor space is big, not only wastes the land resource of preciousness, simultaneously
Also cost of investment is caused to sharply increase.The suitability the most how extending heat-accumulating burner also becomes an emphasis.
Summary of the invention
For solving the problems referred to above, the present invention provides one can effectively reduce NOx discharge, and low in can being simultaneously suitable for
Warm processes, high-temperature heat treatment, reduces the use of multiple industrial furnace, reduces floor space, reduces the ultralow of investment use cost
NOx flame burning technology heat-accumulating burner.
For achieving the above object, the technical solution used in the present invention is: a kind of ultralow NOx flame burning technology heat accumulating type burns
Mouth, including in be provided with the aerial burner shell of heat storage, be arranged on tail end in burner shell the air-fuel connected with burner shell
Mixing head, it is arranged on the air scoop of burner shell front end, is arranged on the burning connected outside air-fuel mixing head and with air-fuel mixing head
Brick, Gas Pipe, igniter burner, be provided with the first combustor in air-fuel mixing head, Gas Pipe is arranged on outside burner shell, combustion gas
The lower end of pipe is fuel gas inlet, the most also includes low temperature Gas Pipe, high-temperature fuel gas pipe, one end of described low temperature Gas Pipe and combustion gas
The side connection of pipe, the other end of low temperature Gas Pipe be arranged in burner shell and with the first combustion chamber, described high temperature fires
One end of trachea connects with the upper end of Gas Pipe, and the other end of high-temperature fuel gas pipe is arranged in burner shell and runs through and bakes bricks and even
Logical burner hearth, the connectivity part of low temperature Gas Pipe, high-temperature fuel gas pipe and Gas Pipe is respectively arranged with low temperature gas valve, high-temperature fuel gas valve,
Described bake bricks in be provided with the second combustor and with the first combustion chamber, be provided with in burner shell and be respectively communicated to the first combustor
And second air channel, the secondary air duct of combustor.
The beneficial effects of the present invention is: the present invention be provided by being suitable to burner hearth low-temperature heat low temperature Gas Pipe and
Be suitable to 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 concrete heating technological temperature
Combustion gas or be passed through combustion gas from high-temperature fuel gas pipe, it is not necessary to extra building industry stove and auxiliary equipment again, reduces area occupied, reduces and throw
Money use cost, is wherein arranged combustion air classification supply in low temperature Gas Pipe and the first combustion chamber and burner shell
Air channel, a secondary air duct so that combustion gas repeated combustion respectively, improve flame speed so that can roll up the flue gas participation inhaled around
Burning, can be effectively reduced flame combustion temperature, reduces the discharge of NOx greatly, and in minimizing combustion process, emission is to greatly
The pollution of gas；And high-temperature fuel gas pipe the most directly runs through burner and is communicated to burner hearth, fuel and air spray in stove at high speed, and volume is inhaled
Inner flue gas of the stove participates in burning, forms ultralow NOx flame combustion in stove, and during ultralow NOx flame combustion, whole burner hearth is bright, without office
Portion's thermal-flame exists, and ultralow NOx flame combustion is compared with traditional combustion, and combustion reaction is in big region, the most whole burner hearth
Carrying out, flame front disappears, and exists without localized hyperthermia's flame；In stove, heat convection and the raising of radiation heat transfer efficiency make temperature in stove
Degree uniformity is fabulous；The generation of the pollutant such as NOx and CO substantially reduces；Ultralow NOx flame combustion can not only effectively improve heat
Utilization ratio, greatly reduces NOx emission simultaneously, reduces the NOx emission of 80-90% than conventional heat-accumulating burner, in furnace temperature
When 1300 DEG C, preheated air temperature about 1100 DEG C, in inner flue gas of the stove, during 3% oxygen content, the concentration of NOx, at below 30ppm, is far below
The environmental emission standard of NOx emission 150ppm during 8% oxygen content in country's flue gas, it is achieved the ultra-low volume discharge of NOx.
Accompanying drawing explanation
Fig. 1 is the structural representation 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 UV detection head and the structural representation of igniter burner.
Drawing reference numeral illustrates: 1-burner shell；11-heat storage；12-air-fuel mixing head；121-the first combustor；13-is empty
QI KOU；14-igniter burner；Air channel of 15-；16-secondary air duct；17-UV detects head；18-heat-insulation layer；19-thermal insulation layer；20-
Cooling tube；2-bakes bricks；21-the second combustor；22-tertiary air road；3-Gas Pipe；31-fuel gas inlet；32-low temperature Gas Pipe；
321-low temperature gas valve；33-high-temperature fuel gas pipe；331-high-temperature fuel gas valve；4-burner hearth.
Detailed description of the invention
Refer to shown in Fig. 1-3, the present invention about a kind of ultralow NOx flame burning technology heat-accumulating burner, including in set
There is the aerial burner shell 1 of heat storage 11, be arranged on tail end in burner shell 1 the air-fuel mixing head connected with burner shell 1
12, it is arranged on the air scoop 13 of burner shell 1 front end, is arranged on outside air-fuel mixing head 12 and connects with air-fuel mixing head 12
Bake bricks 2, Gas Pipe 3, igniter burner 14, be provided with the first combustor 121 in air-fuel mixing head 12, Gas Pipe 3 is arranged on burner
Outside housing 1, the lower end of Gas Pipe 3 is fuel gas inlet 31, the most also includes low temperature Gas Pipe 32, high-temperature fuel gas pipe 33, described
One end of low temperature Gas Pipe 32 connects with the side of Gas Pipe 3, and the other end of low temperature Gas Pipe 32 is arranged in burner shell 1 also
Connecting with the first combustor 121, one end of described high-temperature fuel gas pipe 33 connects with the upper end of Gas Pipe 3, high-temperature fuel gas pipe 33
In the other end is arranged on burner shell 1 and run through and bake bricks 2 and connect burner hearth 4, low temperature Gas Pipe 32, high-temperature fuel gas pipe 33 and combustion gas
The connectivity part of pipe 3 is respectively arranged with low temperature gas valve 321, high-temperature fuel gas valve 331, described in bake bricks and be provided with the second combustor 21 in 2
And connect with the first combustor 121, it is provided with in burner shell 1 and is respectively communicated to the first combustor 121 and the second combustor 21
Air channel 15, a secondary air duct 16.
Compared to existing technology, the present invention be provided by being suitable to the low temperature Gas Pipe 32 of burner hearth 4 low-temperature heat and
Be suitable to the high-temperature fuel gas pipe 33 of burner hearth 4 high-temperature heating, can need to select from low temperature Gas Pipe according to concrete heating technological temperature
32 are passed through combustion gas or are passed through combustion gas from high-temperature fuel gas pipe 33, it is not necessary to extra building industry stove and auxiliary equipment again, reduce and take face
Long-pending, reduce investment use cost, wherein low temperature Gas Pipe 32 connects with the first combustor 121 and arranges in burner shell 1 and will help
Air channel 15 of combustion air classification supply, secondary air duct 16 so that combustion gas repeated combustion respectively, improve flame speed so that
Flue gas participation burning around can be inhaled by volume, flame combustion temperature can be effectively reduced, reduce the discharge of NOx greatly, reduce
The emission pollution to air in combustion process；And high-temperature fuel gas pipe 33 the most directly runs through burner and is communicated to burner hearth 4, fuel and
Air sprays in stove at high speed, and volume is inhaled inner flue gas of the stove and participated in burning, forms ultralow NOx flame combustion, ultralow NOx flame in stove
During burning, whole burner hearth is bright, exists without localized hyperthermia's flame.Ultralow NOx flame combustion compared with traditional combustion, combustion reaction
Carrying out in big region, the most whole burner hearth 4, flame front disappears, and exists without localized hyperthermia's flame；Heat convection and spoke in stove
Penetrating heat exchange efficiency raising makes in-furnace temperature uniformity fabulous；The generation of the pollutant such as NOx and CO substantially reduces；Ultralow NOx fire
Flame burning can not only effectively improve efficiency of utilization, greatly reduces NOx emission simultaneously, reduces than conventional heat-accumulating burner
The NOx emission of 80-90%, when furnace temperature 1300 DEG C, preheated air temperature about 1100 DEG C, NOx during 3% oxygen content in inner flue gas of the stove
Concentration is at below 30ppm, far below the environmental emission standard of NOx emission 150ppm during 8% oxygen content in country's flue gas, it is achieved NOx
Ultra-low volume discharge.
As the embodiment that the present invention is more excellent, described in bake bricks and be additionally provided with tertiary air road 22 in 2, described tertiary air road 22
One end is communicated to burner shell 1 other end and is communicated to burner hearth 4.
Using such scheme, the flame that combustion gas and combustion air produce after the second combustor 21 second-time burning is through mouth brick 2
Spray in burner hearth 4, due to produce flame speed quickly, quick flame can roll up inhale partial fume, part combustion air is from three
Secondary air channel 22 enters burner hearth 4, with second-time burning after produce flame and volume be drawn through flue gas formation three times burn, be mixed into flue gas
During after-combustion, the concentration of oxygen reduces, and can reduce flame combustion temperature further, thus reduce the generation of NOx.
As the embodiment that the present invention is more excellent, described high-temperature fuel gas pipe 33 is two.
Use such scheme, by arranging two high-temperature fuel gas pipes 33, combustion gas can be entered burner hearth 4 dispersedly, more all
In rolling up suction burner hearth, flue gas participates in burning evenly so that exist without localized hyperthermia's flame in stove so that heat flux distribution is more uniform, no
Only improve efficiency of utilization, greatly reduce NOx emission simultaneously.
As the embodiment that the present invention is more excellent, also include controlling valve, control system, UV detection 17, described control
Valve is arranged at fuel gas inlet 31, and the test side of described UV detection 17 is arranged on bakes bricks in 2, described igniter burner 14, control
Valve processed, UV detection 17, low temperature gas valve 321, high-temperature fuel gas valve 331 are connected with control system respectively.
Use such scheme, by arranging control valve at fuel gas inlet 31, air scoop 13, and arrange control system with
Igniter burner 14, control valve, UV detection 17 connect, and can be realized the air inflow control of air and combustion gas by control system,
The IGNITION CONTROL of igniter burner 14, and control the alternation of two burners in actual use, can by UV detection 17
Realize the detection to burner flame, detection signal is sent to control system, control valve by control system to other corresponding
Chain control, it is ensured that burner safety in use, in addition low temperature gas valve 321, high-temperature fuel gas valve 331 and control system
System connects, and can be controlled respective valves according to ignition temperature by real root, during such as high-temp combustion, controls high-temperature fuel gas valve 331 and opens,
Low-temperature burning valve 321 cuts out.
As the embodiment that the present invention is more excellent, described burner shell 1 inwall is provided with heat-insulation layer 18, described heat storage 11
It is fixedly installed in heat-insulation layer 18.
Use such scheme, by arranging heat-insulation layer 18 at burner shell 1 inwall, can shed effectively preventing heat, carry
High heat insulating ability.
As the embodiment that the present invention is more excellent, described in the surface set of low temperature Gas Pipe 32 that is arranged in burner shell 1
Being provided with thermal insulation layer 19, the surface of the high-temperature fuel gas pipe 33 being arranged in burner shell 1 is arranged with cooling tube 20.
Use such scheme, be arranged with thermal insulation layer 19 by the surface of low temperature Gas Pipe 32, at the table of high-temperature fuel gas pipe 33
Surface cover is provided with cooling tube 20, is used to protect low temperature Gas Pipe 32, high-temperature fuel gas pipe 33 to prevent high temperature failure.
Further, different types of baking bricks can be set according to specific needs, specifically include reducing bake bricks, uncovered burning
Brick, flat flame are baked bricks；Wherein reducing the second interior combustor of baking bricks is tapered structure, by the second of tapered structure after fuel gas buring
Produce high-speed flame after combustor, the flue gas participation burning inhaled around can be rolled up, flame temperature can be effectively reduced, further
Reduce the discharge of NOx；The most uncovered the second interior combustor of baking bricks is for being more than the first combustor for the widest structure and cross-sectional width
Cross-sectional width, after fuel gas buring, the second combustor at the widest interface forms diffusion combustion, owing to flame speed is relatively slow, combustion gas
With air mixing fully, burning is violent, the rising furnace temperature that can be exceedingly fast, it is ensured that in stove, blank reaches rolling or forging at short notice
Temperature；Wherein flat flame interior second combustor 21 of baking bricks is tubaeform helical structure, fuel combustion ejection be not updraft but
It is close to the furnace wall disc flame to surrounding uniform extension, uniform temperature field can be caused in the biggest plane, and have very
Strong radianting capacity.
Below the specific works principle of the present invention is illustrated.
The present invention uses in pairs, is arranged on the both sides of burner hearth with being respectively symmetrically and 2 connects with burner hearth by baking bricks, this enforcement
In example, baking bricks 2 uses closed-entry and bakes bricks 2, and wherein the second combustor 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 being positioned at left side Gas Pipe 3, and now the control valve at fuel gas inlet 31 is opened, position
Control valve closing at the fuel gas inlet 31 on right side, combustion gas through controlling valve, enters Gas Pipe 3, is positioned at the low of left side
Temperature gas valve 32 is opened, and high-temperature fuel gas valve 33 cuts out, and combustion gas enters low temperature Gas Pipe 32 from Gas Pipe 3, through low temperature Gas Pipe
32 enter the first combustor 121；
2) combustion air is entered by the air scoop 13 of the burner being positioned at left side, and combustion air is through the internal heat storage of burner shell 1
11 preheatings, now the combustion air after preheating enters the cavity within burner shell 1, and a part of combustion air passes through an air channel
15 enter the first combustor 121 and combustion gas mixing, and by igniter burner 14 ignition；The logical combustion air of a part crosses secondary
Air channel 16 enters in the second combustor 21；One combustion air divides and enters burner hearth 4 by tertiary air road 22；
3) unburnt gas produced after primary combustion continues forward, and combustion air enters from secondary air duct 16 and bakes bricks 2
It is mixed to form second-time burning with unburnt gas in second combustor 21；
4) flame produced after second-time burning sprays into through baking bricks in burner hearth 4, and after second-time burning, the flame speed of generation is quickly, quickly
Flame can roll up suction partial fume flame become three burnings with the combustion air entering in burner hearth 4 by tertiary air road 22；
5) combustion gas the flue gas produced after fully burning in burner hearth 4 flow burner hearth 4 in by the mouth brick 2 on the right side of being positioned at
And tertiary air road 22 enters the second combustor 21, then arriving air-fuel mixing head 12, part of smoke is through the first combustor 121
Entering an air channel 15, another part flue gas is pooled to be positioned at burner shell 1 internal cavity on right side through secondary air duct 16, so
The internal heat storage 11 of rear arrival burner shell 1, now high-temperature flue gas is by heat storage body 11, and high-temperature flue gas transfers heat to store
Becoming low-temperature flue gas after hot body 11, the low-temperature flue gas after heat exchange is discharged from air scoop 13, the burner alternation of both sides；
6) connect at fuel gas inlet 31, air scoop 13 and control valve, and will control valve, igniter burner 14, UV detection 17,
Low temperature gas valve 321, high-temperature fuel gas valve 331 are connected with control system, set the burner work of burner hearth 4 both sides by control system
In the cycle, such as during the work of left side burner, it is positioned at fuel gas inlet 31, the control valve of air scoop 13, low temperature combustion gas at the burner of left side
Valve 321 is opened, and high-temperature fuel gas valve 331 cuts out, and is positioned at the control valve closing of fuel gas inlet 31 at the burner of right side, air scoop 13
Control valve open, the burner on right side through air scoop 13 by flue gas discharge, reach set switching cycle after, the work of two burners
Switching over as mode, now the work of right side burner, left side burner is discharged fume, and UV detection simultaneously 17 is used for detecting flame, and
UV detection signal is corresponding chain to other control mode controlling valve, it is ensured that burner safety in use.
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 being positioned at left side Gas Pipe 3, and now the control valve at fuel gas inlet 31 is opened, position
Control valve closing at the fuel gas inlet 31 on right side, combustion gas through controlling valve, enters Gas Pipe 3, is positioned at the height in left side
Temperature gas valve 33 is opened, and low temperature gas valve 32 is closed, and combustion gas enters high-temperature fuel gas pipe 33 from Gas Pipe 3, is directly entered burner hearth 4；
2) combustion air is entered by the air scoop 13 of the burner being positioned at left side, and combustion air is through the internal heat storage of burner shell 1
11 preheatings, now the combustion air after preheating enters the cavity within burner shell 1, and combustion air is respectively by an air channel
15, burner hearth 4 is imported behind secondary air duct 16, tertiary air road 22；
3) combustion gas enters at a high speed in burner hearth 4 with combustion air, and volume is inhaled inner flue gas of the stove and participated in burning, forms space combustion in stove,
During burning, whole burner hearth is bright, exists without localized hyperthermia's flame, heat convection and radiation heat transfer efficiency in effective raising stove, makes
Obtain in-furnace temperature uniformity fabulous, can greatly reduce NOx emission；
4) combustion gas the flue gas produced after fully burning in burner hearth flow burner hearth 4 in by the mouth brick 2 on the right side of being positioned at
And tertiary air road 22 enters the second combustor 21, then arriving air-fuel mixing head 12, part of smoke is through the first combustor 121
Entering an air channel 15, another part flue gas is pooled to be positioned at burner shell 1 internal cavity on right side through secondary air duct 16, so
The internal heat storage 11 of rear arrival burner shell 1, now high-temperature flue gas is by heat storage body 11, and high-temperature flue gas transfers heat to store
Becoming low-temperature flue gas after hot body 11, the low-temperature flue gas after heat exchange is discharged from air scoop 13, the burner alternation of both sides；
5) connect at fuel gas inlet 31, air scoop 13 and control valve, and will control valve, igniter burner 14, UV detection 17,
Low temperature gas valve 321, high-temperature fuel gas valve 331 are connected with control system, set the burner work of burner hearth 4 both sides by control system
In the cycle, such as during the work of left side burner, it is positioned at fuel gas inlet 31, the control valve of air scoop 13, high-temperature fuel gas at the burner of left side
Valve 331 is opened, and low temperature gas valve 321 is closed, and is positioned at the control valve closing of fuel gas inlet 31 at the burner of right side, air scoop 13
Control valve open, the burner on right side through air scoop 13 by flue gas discharge, reach set switching cycle after, the work of two burners
Switching over as mode, now the work of right side burner, left side burner is discharged fume, and UV detection simultaneously 17 is used for detecting flame, and
UV detection signal is corresponding chain to other control mode controlling valve, it is ensured that burner safety in use.
Embodiment of above is only to be described the preferred embodiment of the present invention, not enters the scope of the present invention
Row limits, on the premise of designing spirit without departing from the present invention, and this area ordinary skill technical staff technical side to the present invention
Various deformation that case is made and improvement, all should fall in the protection domain that claims of the present invention determines.
Claims (6)
1. a ultralow NOx flame burning technology heat-accumulating burner, including in be provided with the aerial burner shell of heat storage, be arranged on
Tail end the air-fuel mixing head connected with burner shell, the air scoop being arranged on burner shell front end in burner shell, it is arranged on
Connect outside 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
Combustor, Gas Pipe is arranged on outside burner shell, and the lower end of Gas Pipe is fuel gas inlet, it is characterised in that also include low temperature
Gas Pipe, high-temperature fuel gas pipe, described one end of low temperature Gas Pipe connects with the side of Gas Pipe, and the other end of low temperature Gas Pipe sets
Put in burner shell and with the first combustion chamber, described one end of high-temperature fuel gas pipe connects with the upper end of Gas Pipe, high temperature
The other end of Gas Pipe is arranged in burner shell and runs through bakes bricks and connects burner hearth, low temperature Gas Pipe, high-temperature fuel gas pipe and combustion
The connectivity part of trachea is respectively arranged with low temperature gas valve, high-temperature fuel gas valve, described in bake bricks in be provided with the second combustor and with first
Combustion chamber, is provided with air channel, the secondary air duct being respectively communicated to the first combustor and the second combustor in burner shell.
Ultralow NOx flame burning technology heat-accumulating burner the most according to claim 1, it is characterised in that described in bake bricks in
Being additionally provided with tertiary air road, the one end in described tertiary air road is communicated to the burner shell other end and is communicated to burner hearth.
Ultralow NOx flame burning technology heat-accumulating burner the most according to claim 1, it is characterised in that described high temperature fires
Trachea is two.
Ultralow NOx flame burning technology heat-accumulating burner the most according to claim 1, it is characterised in that also include controlling
Valve, control system, UV detect head, and described control valve is arranged at fuel gas inlet, and the test side of described UV detection head is arranged
In baking bricks, described igniter burner, control valve, UV detection head, low temperature gas valve, high-temperature fuel gas valve are respectively with control system even
Connect.
Ultralow NOx flame burning technology heat-accumulating burner the most according to claim 1, it is characterised in that described burner shell
Internal wall is provided with heat-insulation layer, and described heat storage is fixedly installed in heat-insulation layer.
Ultralow NOx flame burning technology heat-accumulating burner the most according to claim 1, it is characterised in that described in be arranged on
The surface of the low temperature Gas Pipe in burner shell is arranged with thermal insulation layer, the surface set of the high-temperature fuel gas pipe being arranged in burner shell
It is provided with cooling tube.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610741022.2A CN106196058B (en) | 2016-08-26 | 2016-08-26 | Ultralow NOx flame burning technologies heat-accumulating burner |
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN106196058A true CN106196058A (en) | 2016-12-07 |
| CN106196058B CN106196058B (en) | 2018-08-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940457A (en) * | 2018-01-09 | 2018-04-20 | 天津市赛洋工业炉有限公司 | A kind of New Regenerative high-speed pulse burner |
| 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 |
| CN108613182A (en) * | 2018-07-09 | 2018-10-02 | 河北科技大学 | A kind of double injection low nitrogen burning systems of recuperative heater |
| CN108980831A (en) * | 2018-08-22 | 2018-12-11 | 佛山市科皓燃烧设备制造有限公司 | A kind of ultralow NOxHeat-accumulating burner |
| 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 |
| CN109519920A (en) * | 2018-12-29 | 2019-03-26 | 广州龙鑫蓄热工业炉有限公司 | Combustion system and top typed heat-storage type burner |
| CN111442276A (en) * | 2020-04-21 | 2020-07-24 | 武汉科技大学 | Low-nitrogen oxide heat accumulating type burner and control system and control method thereof |
| CN113154380A (en) * | 2021-04-09 | 2021-07-23 | 山东一然环保科技有限公司 | Low-nitrogen combustion system of regenerative heating furnace and working method thereof |
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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 |
| CN107940457A (en) * | 2018-01-09 | 2018-04-20 | 天津市赛洋工业炉有限公司 | A kind of New Regenerative high-speed pulse burner |
| 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 |
| CN108613182A (en) * | 2018-07-09 | 2018-10-02 | 河北科技大学 | A kind of double injection low nitrogen burning systems of recuperative heater |
| CN108980831A (en) * | 2018-08-22 | 2018-12-11 | 佛山市科皓燃烧设备制造有限公司 | A kind of ultralow NOxHeat-accumulating burner |
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| CN109519920B (en) * | 2018-12-29 | 2024-04-26 | 广州龙鑫蓄热工业炉有限公司 | Combustion system and overhead heat accumulating type combustor |
| CN111442276A (en) * | 2020-04-21 | 2020-07-24 | 武汉科技大学 | Low-nitrogen oxide heat accumulating type burner and control system and control method thereof |
| CN113154380A (en) * | 2021-04-09 | 2021-07-23 | 山东一然环保科技有限公司 | Low-nitrogen combustion system of regenerative heating furnace and working method thereof |
| CN113154380B (en) * | 2021-04-09 | 2022-02-22 | 山东一然环保科技有限公司 | Low-nitrogen combustion system of regenerative heating furnace and working method thereof |
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