CN106524152A - Graded gas low-nitrogen burner - Google Patents
Graded gas low-nitrogen burner Download PDFInfo
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- CN106524152A CN106524152A CN201611065603.5A CN201611065603A CN106524152A CN 106524152 A CN106524152 A CN 106524152A CN 201611065603 A CN201611065603 A CN 201611065603A CN 106524152 A CN106524152 A CN 106524152A
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- Prior art keywords
- combustion gas
- exhaust gas
- gas
- gas nozzle
- air
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Classifications
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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
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
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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
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
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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
- F23D14/70—Baffles or like flow-disturbing devices
-
- 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
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
- F23D2203/108—Flame diffusing means with stacked sheets or strips forming the outlets
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention provides a graded gas low-nitrogen burner, and relates to the technical field of burners. The graded gas low-nitrogen burner comprises a distributor, a diversion disc, an ignition electrode, an ignition fuel pipe and a combustion barrel, wherein the distributor is used for providing flow paths for gas, and comprises a body and a plurality of gas injection pipes connected with the body; the body is a barrel with an interlayer; the exterior is the interlayer; the interior is a hollow part; a plurality of gas distribution cavities are arranged at the top of the interlayer at intervals; gas enters the distribution cavities through the body and is injected through the gas injection pipes; air flows through the hollow part of the body; the hollow part and the gas injection pipes form air flow paths; and a flame retardant gas is provided for gas. According to the graded gas low-nitrogen burner, an air circulation pipeline does not need to be separately arranged, so that the equipment is simplified, the space is saved, and the cost is reduced; and three layers of combustion-supporting air, two layers of gas and entraining flue gas in the burner are arranged by layers, so that the flame temperature and oxygen content in flue gas are decreased, emission of NOx is effectively reduced, and the current environmental protection requirement is met.
Description
Technical field
The present invention relates to a kind of technical field of burner, more particularly to a kind of classification combustion gas low NO.
Background technology
Burner, is that the device for making fuel and air spray mixed combustion in a certain way is referred to as.
By taking gas burner as an example, as environmental protection policy constantly becomes tight to what NOx (i.e. nitrogen oxides) discharges were limited, burn
The low nitrogen transformation of device is very urgent.Shown according to some research reports and data from investigation, affect flue gas in NOx formed it is main because
Element can be summarized as three aspects：First aspect is relevant with fuel characteristic, and in fuel, nitrogen is more, easier generation NOx.Second
Aspect is relevant with some technical parameters in combustion process, and when such as ignition temperature reaches a certain critical-temperature, the content of NOx is with temperature
Degree has exponent relation rising.The third aspect is relevant with the type of combustion apparatus and burner.
Existing low NO, its inlet air flow path are a sealing passage being separately provided, and air can only be in passage
Exit and combustion gas mixing, be unfavorable for combustion gas and air is sufficiently mixed burning, causes incomplete combustion, combustion instability,
The problems such as NOx emission is unsatisfactory for environmental requirement.
The content of the invention
It is an object of the present invention to provide a fuel and Researched of Air Staging Combustion Burning Pulverized Coal, make the clean-burning classification combustion gas of combustion gas
Low NO.
Especially, the present invention provides a kind of classification combustion gas low NO, including：
Distributor, for providing flow path to the combustion gas and air, including：
Body, be with cylinder with dissection, its it is outside for interlayer, it is internal be hollow bulb, the interlayer is used for combustion gas aggregation,
Fuel gas inlet is formed with the interlayer, spaced apart multiple combustion gas is formed with the top of the interlayer and is distributed cavity；
Multiple exhaust gas nozzles, the plurality of exhaust gas nozzle and the plurality of combustion gas distribution cavity are corresponded and in succession
Connect, each corresponding combustion gas distribution cavity forms corresponding fuel gas flow path with exhaust gas nozzle, and the combustion gas is in corresponding combustion
Flow in flow of air path and be classified at corresponding exhaust gas nozzle and spray；
Wherein, air flows from the hollow bulb of distributor and surrounding space, the air by the hollow bulb with it is described
Direct current wind is formed at the space that multiple exhaust gas nozzles are formed；
Flow guiding disc, positioned at the exit of the inlet air flow path, for making the air through the flow guiding disc be formed
Even swirling eddy；
Ignitor, positioned at the distributor side, for the gas ignition；
Igniter fuel pipe, is separate fuel pipe, for providing fuel to ignitor igniting；With
Burning cylinder, is formed at outside the distributor, the flow guiding disc, the ignitor and the igniter fuel pipe
Portion, for being that combustion gas and air provide mixing and place of burning.
Further, each exhaust gas nozzle has relative first end and the second end, and the first end is opening
Hold and dock with corresponding combustion gas distribution cavity, the second end is blind end；Near described second in the exhaust gas nozzle
First circular hole and elongated hole of radial direction insertion are provided with the tube wall of end, first circular hole and the elongated hole are along the exhaust gas nozzle
Tube wall it is positioned opposite, the relatively close the second end of the elongated hole, first circular hole are used to spray one-level combustion gas, described
Elongated hole is used to spray second gas burning.
Further, the first combustion gas spout, first combustion are correspondingly provided with first circular hole of each exhaust gas nozzle
Gas blowout mouth is in tube wall that is horn-like and protruding from the exhaust gas nozzle.
Further, the center line side of the center line of the first combustion gas spout at each exhaust gas nozzle and the exhaust gas nozzle
It is 10-60 degree to the angle for constituting.
Further, corresponding spout governor motion is additionally provided with the elongated hole of each exhaust gas nozzle, by adjusting the spray
The position of the relatively described elongated hole of mouth governor motion, with the flow that regulating gas are sprayed from the elongated hole.
Further, be provided with the second end of each exhaust gas nozzle axially through the first screwed hole；
The corresponding spout governor motion of each exhaust gas nozzle includes：
Cover-shaped body, for being covered at the second end of corresponding exhaust gas nozzle, wherein, axle is provided with the top of the cover-shaped body
To insertion the second circular hole corresponding with first screwed hole；
Second combustion gas spout, radially runs through the side-walls of the cover-shaped body, changes described by rotating the cover-shaped body
Position of the second combustion gas spout relative to the elongated hole, with the flow that regulating gas are sprayed from the elongated hole；With
Securing member, for through second circular hole and first screwed hole being correspondingly arranged, the spout being adjusted
Section mechanism is fixed at the exhaust gas nozzle.
Further, the camber line that the elongated hole of each exhaust gas nozzle is formed on its tube wall circumference and the circumference and the gas injection
The angle that the intersection point of tube hub line is formed is 60 degree.
Further, in the plurality of exhaust gas nozzle two exhaust gas nozzles of arbitrary neighborhood along the distributor axis to submission
Wrong arrangement.
Further, the flow guiding disc includes：
Shell body, for air circulation, hollow cylinder of the shell body for both ends open, including entrance point and outlet
End, the air are flowed out by the port of export after being entered by entrance point；
Multiple guide vanes, the inner side and middle part for being arranged in the shell body at an angle form cavity, for making Jing
The air for crossing the plurality of guide vane forms swirling eddy；
Inner housing, is arranged at the cavity, for being connected with the plurality of guide vane；
Closed plate, blocks the inlet port in the inner housing, and the closed plate is connected with the inner housing and in connection
Place is provided with gap；With
Bracing frame, one end are fixed with the shell body, and the other end is used to be fixedly connected with the exhaust gas nozzle, for by institute
State shell body to be fixedly mounted at the exhaust gas nozzle.
Further, the flow guiding disc also includes taper ring, and the taper ring is arranged at the port of export of the shell body,
Multiple through holes are provided with the wall of the taper ring, the taper ring is in enlarging shape along the air-flow direction.
The classification combustion gas low NO of the present invention is only by shape inside the combustion gas distribution cavity and exhaust gas nozzle in distributor
Into fuel gas flow path, air is blown by blower fan, is that air is abundant with combustion gas
Mixed combustion, without being separately provided air flow conduit, simplifies equipment, save space and cost.
The classification combustion gas low NO of the present invention arranges flow guiding disc in the tail end of inlet air flow path, and air is in blower fan
Blow down, a Whirl deposite tank that the rotary gas after the center direct current wind that formed after hollow bulb, flow guiding disc are formed and two grades
Air is divided into three layers of combustion air by the gap air between fuel nozzle ports and flow guiding disc.Spray from the first combustion gas of exhaust gas nozzle spout
Going out one-level combustion gas and second gas burning is sprayed from the second combustion gas spout, combustion gas is divided into into two-layer ejection, the combustion-supporting sky of three in burner layer
The backlayering time arrangement that gas, two layers of combustion gas and volume are inhaled, reduces the concentration of oxygen in flame temperature and flue gas, effectively reduces
The discharge of NOx, meets existing environmental requirement.
The one-level exhaust gas nozzle mouth of pipe adopts bell shape, in order to obtain optimal combustion gas spouting velocity, it is to avoid combustion
Gas produces vortex, so as to reduce the generation of nitrogen oxides.
The Rotating with Uniform air-flow formed after flow guiding disc is mixed with the multiply second gas burning thread that secondary fuel spout radially sprays
Close, enhance air and combustion gas mixing, shorten the time of staying of the flue gas in high-temperature region, advantageously reduce flame temperature.Water conservancy diversion
The port of export of the shell body of disk connects a taper ring, and many places perforate thereon, its objective is to play a part of steady combustion, does not take off
Fire, does not put out a fire, so as to enhance burning.
Burner cylinder does reducing process in the port of export, first reduces and becomes big afterwards, it is therefore an objective to tempering is prevented when burning.
According to the detailed description below in conjunction with accompanying drawing to the specific embodiment of the invention, those skilled in the art will be brighter
The above-mentioned and other purposes of the present invention, advantages and features.
Description of the drawings
Describe some specific embodiments of the present invention hereinafter with reference to the accompanying drawings by way of example, and not by way of limitation in detail.
In accompanying drawing, identical reference denotes same or similar part or part.It should be appreciated by those skilled in the art that these
What accompanying drawing was not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the dimensional structure diagram of classification combustion gas low NO according to an embodiment of the invention；
Fig. 2 is the front view of classification combustion gas low NO according to an embodiment of the invention；
Fig. 3 is the structural representation of the exhaust gas nozzle of classification combustion gas low NO according to an embodiment of the invention；
Fig. 4 is the exhaust gas nozzle of classification combustion gas low NO according to an embodiment of the invention with spout structure
Structural representation；
Fig. 5 is the structural representation of the spout governor motion of classification combustion gas low NO according to an embodiment of the invention
Figure；
Fig. 6 is the front view of the flow guiding disc of classification combustion gas low NO according to an embodiment of the invention；
Fig. 7 is the right view of the flow guiding disc of classification combustion gas low NO according to an embodiment of the invention.
Specific embodiment
Fig. 1 is the structural representation of classification combustion gas low NO according to an embodiment of the invention 100.Fig. 2 is root
According to the front view of the classification combustion gas low NO of one embodiment of the invention.
As shown in Fig. 2 referring also to Fig. 1, the present embodiment is illustrated based on Fig. 2, classification combustion gas low NO 100
May be used to the nitrogen oxides that combustion gas is sufficiently mixed fractional combustion to reduce producing after burning with air.In Fig. 2 schematically
Show that classification combustion gas low NO 100 includes distributor 10, flow guiding disc 20, ignitor 30, igniter fuel pipe 31 and combustion
Burn cylinder 40.Distributor 10, flow guiding disc 20, ignitor 30 and igniter fuel pipe 31 are arranged inside burning cylinder 40.Fig. 1 will
Burning cylinder 40 is omitted.
Distributor 10 is used to the combustion gas and provides flow path, can include body 11 and multiple exhaust gas nozzles
12.Body 11 is that, with cylinder with dissection, it is hollow bulb 112 for interlayer 111, inside which is outside, and the interlayer 111 is for combustion gas
Aggregation, is formed with fuel gas inlet 113 at the interlayer 111, the top of the interlayer 111 is formed with spaced apart multiple combustion gas
Distribution cavity 114, the hollow bulb 112 are used for by air.Multiple exhaust gas nozzles 12, the plurality of exhaust gas nozzle 12 and described
Multiple combustion gas distribution cavitys 114 correspond and dock connection, each corresponding combustion gas distribution cavity 114 and 12 shape of exhaust gas nozzle
Into corresponding fuel gas flow path, the combustion gas is flowed and at corresponding exhaust gas nozzle 12 in corresponding fuel gas flow path
Classification sprays.In the present embodiment, in the side blowing air of burning cylinder 40, and burning cylinder 40 is blowed air into using blower fan
In, the blower fan blow air-flow direction mainly towards distributor 10 body 11 hollow bulb 112 towards igniter fuel pipe 12
Place blows, thus air from the hollow bulb 112 of distributor 10 and surrounding space flow when, the air passes through the hollow bulb
Direct current wind is formed at 112 spaces formed with the plurality of exhaust gas nozzle 12.Present invention classification combustion gas low NO 100 is dividing
Orchestration 10 is internally formed fuel gas flow path, and air flows in the dispenser exterior, and is blown to distributor 10 by blower fan,
Without being separately provided air flow conduit, equipment, save space and cost are simplified.
As the hollow cylinder that a specific embodiment, body 11 can be arranged for the annular of jacketed, combustion gas distribution
The end of cavity is arranged side by side combustion gas distribution cavity 114, and combustion gas distribution cavity 114 is connected using securing member 16 with exhaust gas nozzle
Connect.The shape of body 11 is not necessarily fixed as annular hollow cylinder, can be other shapes, such as, as other realities
Apply in example, body 11 is regular hexagon hollow cylinder or octagon hollow cylinder, on its outer layer arranges gas inlet
111, combustion gas distribution cavity 114 is arranged side by side in end, hollow bulb is used for air circulation.
Fig. 3 is the structural representation of the exhaust gas nozzle of classification combustion gas low NO according to an embodiment of the invention.
As shown in figure 4, each exhaust gas nozzle 12 has relative first end 121 and the second end 122, the first end 121 is
Openend and with corresponding combustion gas distribution cavity 114 dock, the second end 122 be blind end.In the exhaust gas nozzle 12
First circular hole 123 and elongated hole 124 of radial direction insertion, first circular hole 123 are provided with the tube wall of the second end 122
It is positioned opposite along the tube wall of the exhaust gas nozzle 12 with the elongated hole 124, the relatively close the second end of the elongated hole 124
122, first circular hole 123 is used to spray one-level combustion gas, and the elongated hole 124 is used to spray second gas burning.So arrange and cause
Primary fuel is in oxygen-enriched lower burning, and the center of inlet air flow path is direct current cold air, forms the hollow flame of low temperature.While from
The second gas burning that second combustion gas spout 152 (as shown in Figure 5) sprays can be sufficiently mixed with the swirling eddy from flow guiding disc out, by force
Air and combustion gas mixing are changed, have shortened the time of staying of the flue gas in high-temperature region, advantageously reduce flame temperature.
Be provided with the second end 122 of each exhaust gas nozzle 12 axially through the first screwed hole 126, the screwed hole is used for
Through securing member.As shown in Figure 1-2, the combustion gas distribution cavity 11 is collectively forming institute with the inner space of the exhaust gas nozzle 12
Fuel gas flow path is stated, the combustion gas is entered in body 11 from the gas inlet 113, then distributes cavity by the combustion gas
114 flow out, after flowing through the first end 121 by flow to inside the exhaust gas nozzle 12 the second end 122 spray use
In burning.
Fig. 4 is the exhaust gas nozzle of classification combustion gas low NO according to an embodiment of the invention with spout structure
Structural representation.As shown in figure 4, being correspondingly provided with the first combustion gas spout at first circular hole 123 of each exhaust gas nozzle 12
125, the first combustion gas spout 125 is in tube wall that is horn-like and protruding from the exhaust gas nozzle 12.Each exhaust gas nozzle 12
The center line of the first combustion gas spout 125 at place is 10-60 degree with the angle that the centerline direction of the exhaust gas nozzle 12 is constituted.The
One combustion gas spout 125 is to obtain optimal combustion gas spouting velocity for trumpet-shaped purpose, it is to avoid combustion gas produces vortex, so as to drop
The generation of low NOx.Used as a preferred embodiment, the first combustion gas spout 125 can be movable and removably arrange
On the tube wall of exhaust gas nozzle 12, according to the needs that burn each time, the angle of the first combustion gas spout 125 can be adjusted at any time.First
Combustion gas spout 125 is to obtain optimal combustion gas spouting velocity for trumpet-shaped purpose, it is to avoid combustion gas produces vortex, so as to reduce
The generation of nitrogen oxides.
In camber line and the circumference and the exhaust gas nozzle that the elongated hole 124 of each exhaust gas nozzle 12 is formed on its tube wall circumference
The angle that the intersection point of heart line is formed is 60 degree.Exhaust gas nozzle 12 with combustion gas distribute cavity 114 during being connected with each other, can
With the equal setting of the distance for being placed at the body, the spacing that can be yet placed at body does not wait setting, it is preferable that institute
Two exhaust gas nozzles 12 for stating arbitrary neighborhood in multiple exhaust gas nozzles 12 are in axially interlaced arrangement along the distributor 10.Distance can
With flexible modulation, make combustion gas form a uniform and stable gas belt, reach and reach efficiently with the air inside exhaust gas nozzle 12
The purpose of mixing.
Fig. 5 shows the structure of the spout governor motion of classification combustion gas low NO according to an embodiment of the invention
Schematic diagram.Spout governor motion is correspondingly arranged at the second end 122 of each exhaust gas nozzle 12.Each spout governor motion 15
All include cover-shaped body 151, the second combustion gas spout 152 and securing member.Cover-shaped body 151 is used to be covered in corresponding exhaust gas nozzle 12
At the second end 122, wherein, be provided with the top of the cover-shaped body 151 axially through with first screwed hole 126 corresponding second
Circular hole 153.Second combustion gas spout, 152 radial direction runs through the side-walls of the cover-shaped body 151, by rotating the cover-shaped body 151
Change position of the second combustion gas spout 152 relative to the elongated hole 124, sprayed from the elongated hole 124 with regulating gas
Flow.Securing member for through second circular hole 153 and first screwed hole 126 being correspondingly arranged, by the spout
Governor motion 15 is fixed at the second end 122 of the exhaust gas nozzle 12.Preferably, securing member is bolt.
Used as a specific embodiment, as shown in Figure 1-2, used as a specific embodiment, exhaust gas nozzle 12 is connected to body
On 11, there is gap between the adjacent exhaust gas nozzle 12 and be interspersed.The size shape of each exhaust gas nozzle 12 is the same,
The first combustion gas spout 125 and the second combustion gas spout 152 of arbitrary exhaust gas nozzle 12 is with a distance from the second end 122 of exhaust gas nozzle 12
It is equal.When exhaust gas nozzle 12 is at 11 side of body side by side and when not being interspersed, multiple first combustion gas spouts 125 with same
One plane, multiple second combustion gas spouts 152 are in same plane.As a kind of preferred embodiment, adjacent exhaust gas nozzle 12
Between it is axially staggered be arranged in 11 end of body, then the first combustion gas spout 125 and the second combustion gas spout 152 can all form staggered floor
Distribution, makes combustion gas form a uniform and stable gas belt, and the purpose for efficiently mixing is reached with the air of conveying.Certainly, according to
Actual needs, the first combustion gas spout 125 can be one or more that be arranged side by side.
As shown in Figure 1-2, flow guiding disc 20 is located at the exit of the inlet air flow path, for making through the flow guiding disc
20 air forms Rotating with Uniform air-flow.Flow guiding disc 20 is arranged on the exit of inlet air flow path, that is, is arranged on combustion gas
Jet pipe 12 is at the second end 122.Fig. 6-7 shows the flow guiding disc 20 of the classification combustion gas low NO of one embodiment
Structural representation.Understand as shown in the figure, flow guiding disc 20 can include shell body 21, multiple guide vanes 22, inner housing, closed plate
23 and bracing frame 24.
Shell body 21 is used for air circulation, hollow cylinder of the shell body 21 for both ends open, including 211 He of entrance point
The port of export 212, the air are flowed out by the port of export 212 after being entered by entrance point 211.Multiple guide vanes 22 are arranged at an angle
The inner side and middle part for being listed in the shell body 21 forms cavity, for making the air shape through the plurality of guide vane 22
Into swirling eddy.Inner housing is arranged at the cavity, for being connected with the plurality of guide vane 22.Closed plate 23 is blocked
The inlet port of the inner housing, the closed plate 23 are connected with the inner housing and junction are provided with gap 231.Support
24 one end of frame is fixed with the shell body, and the other end is used to be fixedly connected with the exhaust gas nozzle 12, for by the shell body
21 are fixedly mounted at the exhaust gas nozzle 12.It is understood that inner housing and the shape and shell body 21 of closed plate 23
Shape is adapted.Simultaneously inner housing is also the hollow cylinder similar to shell body 21, be arranged at the center of shell body 21 with it is outer
Housing 21 collectively constitutes ring-type, and guide vane 22 is fixed between inner housing and shell body 21 by certain angle, is made by water conservancy diversion
The air of blade 22 forms swirling eddy.Bracing frame 24 is linked together with shell body 21, with combustion at the other end of bracing frame 24
Gas blowout pipe 12 is detachably connected, for the flow guiding disc 20 is fixedly mounted on the exhaust gas nozzle 12.When air is by leading
Form the multiply combustion gas thread that Rotating with Uniform air-flow and secondary fuel spout radially spray to mix after flow table 20, enhance air with
Combustion gas mixing, shortens the time of staying of the flue gas in high-temperature region, advantageously reduces flame temperature.
As one preferably, the flow guiding disc 20 can also include taper ring 25, and the taper ring 25 is arranged on described outer
At the port of export 212 of housing 21, multiple through holes 251 on the wall of the taper ring 25, are provided with, the taper ring 25 is along the air
Flow direction is in enlarging shape.The flow guiding disc 20 not only forms the air-flow of Rotating with Uniform, while taper ring 25 also acts as the work of steady combustion
With de- fire is not put out a fire, so as to enhance burning.
The classification combustion gas low NO 100 of the present invention arranges flow guiding disc 20 in the tail end of inlet air flow path.Make to have leisure
Gas forms center direct current wind, the rotary gas Jing after flow guiding disc 20 in inlet air flow path and forms Whirl deposite tank, a Yi Ji
Air is divided into three layers of combustion air by the gap location between two combustion gas spouts 152 and flow guiding disc 20.From the of the spray of exhaust gas nozzle 12
One combustion gas spout 125 sprays one-level combustion gas and sprays second gas burning from the second combustion gas spout 152 and combustion gas is divided into two-layer ejection, combustion
The backlayering time arrangement that three layers of combustion air, two layers of combustion gas and volume in burner are inhaled, reduces oxygen in flame temperature and flue gas
Concentration, effectively reduce the discharge of NOx, meet existing environmental requirement.
As shown in Figure 1-2, in order to give gas ignition, ignitor 30 is also set up in this burner and for the point
The igniting of thermoelectricity pole 30 provides the igniter fuel pipe 31 of fuel, and ignitor 30 is located at the side of the igniter fuel pipe 31.
Ignitor 30 can be at least one, positioned at 10 side of the distributor, for the gas ignition.Igniting
Cartridge 31 is separate fuel pipe, for providing fuel to the igniting of the ignitor 30.As a kind of embodiment, the igniting
Cartridge 31 is that relative exhaust gas nozzle 12 is separately provided Gas Pipe, and which is in the side of the distributor 10.The igniter fuel pipe
31 include two ends, and an end of the igniter fuel pipe 31 is connected with gas source, the igniter fuel pipe 31 it is another
An end portion is provided with the steady combustion disk 32 for being provided with multiple holes 321, and the steady combustion disk 32 has gap to arrange with ignitor 30.This
The bright middle effect for arranging a steady combustion disk 32 with multiple holes 321 is that igniting combustion gas is formed uniform after by steady combustion disk 32
Air-flow, it is ensured that 30 efficient pilot gas of ignitor, realizes the function of igniting.
It is understood that valve (not shown) is also provided with the igniter fuel pipe 31, need igniting
Valve described in Shi Kaiqi, makes combustion gas use for igniting through the igniter fuel pipe 31, after the completion of igniting, closes the valve.
Generally, ignitor 30 can be one or two, and when ignitor 30 is one, the ignitor 30 is arranged
There is certain suitable distance with steady combustion disk 32 after steady combustion disk 32, realize that arcing is lighted a fire.When ignitor 30 is two, two
There is gap between individual ignitor 30, gap is there is also between electrode and steady combustion disk 32, in arcing ignition process, apart near
Ignition function is realized.It can be seen that two ignitors compare an electrode, its ignition effectiveness is higher.Certainly in the specific implementation,
The number of its ignitor 30 with the need depending on.
Distributor, the flow guiding disc 20, the ignitor 30 and the igniter fuel pipe described in burning cylinder-shaped Cheng Yu
31 outside, for being that combustion gas and air provide mixing and place of burning.Used as the burning cylinder 40 for providing space, which is being located at
Circumferential size at the second end 122 of the exhaust gas nozzle 12 first reduces and increases (referring to Fig. 2) afterwards, it is therefore an objective to when burning
Prevent the generation being tempered.
So far, although those skilled in the art will appreciate that detailed herein illustrate and describe multiple showing for the present invention
Example property embodiment, but, without departing from the spirit and scope of the present invention, still can be direct according to present disclosure
It is determined that or deriving many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all these other variations or modifications.
Claims (10)
1. it is a kind of to be classified combustion gas low NO, including：
Distributor, for providing flow path to combustion gas, including：
Body, is that, with cylinder with dissection, it is hollow bulb for interlayer, inside which is outside, and the interlayer is assembled for combustion gas, described
Fuel gas inlet is formed with interlayer, spaced apart multiple combustion gas is formed with the top of the interlayer and is distributed cavity；
Multiple exhaust gas nozzles, the plurality of exhaust gas nozzle and the plurality of combustion gas distribution cavity are corresponded and dock connection, often
One corresponding combustion gas distribution cavity forms corresponding fuel gas flow path with exhaust gas nozzle, and the combustion gas is in corresponding fuel gas flow
Flow in path and be classified at corresponding exhaust gas nozzle and spray；
Wherein, air flows from the hollow bulb of distributor and surrounding space, the air by the hollow bulb with it is the plurality of
Direct current wind is formed at the space that exhaust gas nozzle is formed；
Flow guiding disc, positioned at the exit of the inlet air flow path, for making the air through the flow guiding disc form uniform rotation
Turn air-flow；
Ignitor, positioned at the distributor side, for the gas ignition；
Igniter fuel pipe, is separate fuel pipe, for providing fuel to ignitor igniting；With
Burning cylinder, is formed at outside the distributor, the flow guiding disc, the ignitor and the igniter fuel pipe, uses
In being that combustion gas and air provide mixing and place of burning.
It is 2. according to claim 1 to be classified combustion gas low NO, it is characterised in that
Each exhaust gas nozzle has relative first end and a second end, the first end be openend and with corresponding combustion
Gas distribution cavity docking, the second end is blind end；Set at the tube wall of the second end in the exhaust gas nozzle
There is the relative cloth of tube wall of first circular hole and elongated hole of radial direction insertion, first circular hole and the elongated hole along the exhaust gas nozzle
Put, the relatively close the second end of the elongated hole, first circular hole is used to spray one-level combustion gas, and the elongated hole is used to spray
Second gas burning.
It is 3. according to claim 2 to be classified combustion gas low NO, it is characterised in that
The first combustion gas spout is correspondingly provided with first circular hole of each exhaust gas nozzle, the first combustion gas spout is in horn-like
And protrude from the tube wall of the exhaust gas nozzle.
It is 4. according to claim 3 to be classified combustion gas low NO, it is characterised in that
The angle that the centerline direction of the center line of the first combustion gas spout at each exhaust gas nozzle and the exhaust gas nozzle is constituted
For 10-60 degree.
5. the classification combustion gas low NO according to any one of claim 2-4, it is characterised in that
Corresponding spout governor motion is additionally provided with the elongated hole of each exhaust gas nozzle, it is relative by adjusting the spout governor motion
The position of the elongated hole, with the flow that regulating gas are sprayed from the elongated hole.
It is 6. according to claim 5 to be classified combustion gas low NO, it is characterised in that
Be provided with the second end of each exhaust gas nozzle axially through the first screwed hole
The corresponding spout governor motion of each exhaust gas nozzle includes：
Cover-shaped body, for being covered at the second end of corresponding exhaust gas nozzle, wherein, it is provided with the top of the cover-shaped body and axially passes through
Lead to the second circular hole corresponding with first screwed hole；
Second combustion gas spout, radially runs through the side-walls of the cover-shaped body, changes described second by rotating the cover-shaped body
Position of the combustion gas spout relative to the elongated hole, with the flow that regulating gas are sprayed from the elongated hole；With
Securing member, for through second circular hole and first screwed hole being correspondingly arranged, the spout being adjusted machine
Structure is fixed at the exhaust gas nozzle.
7. the classification combustion gas low NO according to any one of claim 2-6, it is characterised in that
The friendship of camber line and the circumference and the exhaust gas nozzle center line that the elongated hole of each exhaust gas nozzle is formed on its tube wall circumference
The angle that point is formed is 60 degree.
8. the classification combustion gas low NO according to any one of claim 1-7, it is characterised in that
In the plurality of exhaust gas nozzle two exhaust gas nozzles of arbitrary neighborhood along the distributor axis in interlaced arrangement.
9. the classification combustion gas low NO according to any one of claim 1-8, it is characterised in that
The flow guiding disc includes：
Shell body, for air circulation, hollow cylinder of the shell body for both ends open, including entrance point and the port of export, institute
State after air is entered by entrance point and flowed out by the port of export；
Multiple guide vanes, the inner side and middle part for being arranged in the shell body at an angle form cavity, for making through institute
The air for stating multiple guide vanes forms swirling eddy；
Inner housing, is arranged at the cavity, for being connected with the plurality of guide vane；
Closed plate, blocks the inlet port in the inner housing, and the closed plate is connected with the inner housing and is set in junction
It is equipped with gap；With
Bracing frame, one end are fixed with the shell body, and the other end is used to be fixedly connected with the exhaust gas nozzle, for will it is described outward
Housing is fixedly mounted at the exhaust gas nozzle.
It is 10. according to claim 9 to be classified combustion gas low NO, it is characterised in that
The flow guiding disc also includes taper ring, and the taper ring is arranged at the port of export of the shell body, the taper ring
Multiple through holes are provided with wall, the taper ring is in enlarging shape along the air-flow direction.
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| CN107120652A (en) * | 2017-05-09 | 2017-09-01 | 北京水木星源环保科技有限公司 | One kind classification combustion gas low NO |
| CN107166381A (en) * | 2017-06-28 | 2017-09-15 | 河南科技大学 | A kind of tangential movable nozzle turbulent burner |
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| CN108613181A (en) * | 2018-04-25 | 2018-10-02 | 北京兴达奇热工控制设备有限公司 | A kind of low NO |
| CN109099424A (en) * | 2018-09-04 | 2018-12-28 | 辽宁工程技术大学 | A kind of device with injection, combustion function |
| CN109442399A (en) * | 2018-07-20 | 2019-03-08 | 北京航空航天大学 | One kind, which liquidates, directly sprays low NO |
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| CN116642180A (en) * | 2023-04-07 | 2023-08-25 | 沧州市天龙燃烧设备有限公司 | Full-automatic oil-gas mixed combustion low-nitrogen combustor |
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| CN109654496A (en) * | 2017-10-12 | 2019-04-19 | 重庆赛迪热工环保工程技术有限公司 | A kind of self-preheating type high combustion rate burner and its control method |
| CN109654496B (en) * | 2017-10-12 | 2023-10-03 | 重庆赛迪热工环保工程技术有限公司 | Self-preheating type high-speed burner and control method thereof |
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| CN109099424A (en) * | 2018-09-04 | 2018-12-28 | 辽宁工程技术大学 | A kind of device with injection, combustion function |
| CN109959001A (en) * | 2019-04-10 | 2019-07-02 | 佛山市顺德区乐华陶瓷洁具有限公司 | A kind of high velocity burner |
| CN109959001B (en) * | 2019-04-10 | 2024-05-31 | 佛山市顺德区乐华陶瓷洁具有限公司 | High-speed burner |
| CN116642180A (en) * | 2023-04-07 | 2023-08-25 | 沧州市天龙燃烧设备有限公司 | Full-automatic oil-gas mixed combustion low-nitrogen combustor |
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