CN106524152B - A kind of classification combustion gas low NO - Google Patents
A kind of classification combustion gas low NO Download PDFInfo
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- CN106524152B CN106524152B CN201611065603.5A CN201611065603A CN106524152B CN 106524152 B CN106524152 B CN 106524152B CN 201611065603 A CN201611065603 A CN 201611065603A CN 106524152 B CN106524152 B CN 106524152B
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- combustion gas
- exhaust gas
- gas nozzle
- air
- spout
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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
-
- 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
-
- 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 present invention provides a kind of classification combustion gas low NOs, are related to technical field of burner.Classification combustion gas low NO includes distributor, flow guiding disc, ignitor, igniter fuel pipe and burning cylinder.Distributor is used to provide flow path, the multiple exhaust gas nozzles connecting including ontology and with ontology to combustion gas.Ontology is with cylinder with dissection, and external is interlayer, inside is hollow portion, there is spaced apart multiple combustion gas distribution cavitys at the top of interlayer, and combustion gas enters distribution cavity by ontology and sprays through exhaust gas nozzle.The inlet air flow path that air then flows through the hollow portion of ontology and exhaust gas nozzle is formed, provides fire-retardant gas to combustion gas.The present invention does not have to that air flow conduit is separately provided, and simplifies equipment, saves space and cost.The backlayering time arrangement that three layers of combustion air, two layers of combustion gas and volume in burner of the present invention are inhaled, reduces the concentration of oxygen in flame temperature and flue gas, effectively reduces the discharge of NOx, meet existing environmental requirement.
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 technique
Burner is that the device for making fuel and air spray mixed firinor fuel burning in a certain way is referred to as.
By taking gas burner as an example, as environmental protection policy constantly becomes tight to NOx (i.e. nitrogen oxides) discharge limitation, burning
The low nitrogen transformation of device is very urgent.According to some research reports and data from investigation show to influence NOx in flue gas formed it is main because
Element can be summarized as three aspects：First aspect be it is related with fuel characteristic, nitrogen is more in fuel, NOx more easily generated.Second
Aspect is related with some technical parameters in combustion process, and when reaching a certain critical-temperature such as ignition temperature, the content of NOx is with temperature
Degree has exponent relation rising.The third aspect is related with the type of combustion apparatus and burner.
Existing low NO, inlet air flow path are a sealed passage being separately provided, and air can only be in channel
Exit and combustion gas mixing, be unfavorable for combustion gas and air is sufficiently mixed burning, cause incomplete combustion, combustion instability,
NOx emission is unsatisfactory for the problems such as environmental requirement.
Summary 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.
Particularly, the present invention provides a kind of classification combustion gas low NO, including：
Distributor is used to provide flow path to the combustion gas and air, including：
Ontology, for cylinder with dissection, external is interlayer, inside is hollow portion, and the interlayer is assembled for combustion gas,
It is formed with fuel gas inlet at the interlayer, spaced apart multiple combustion gas distribution cavitys are formed at the top of the interlayer；
Multiple exhaust gas nozzles, the multiple exhaust gas nozzle and the multiple combustion gas distribution cavity correspond and in succession
It connects, each corresponding combustion gas distribution cavity forms corresponding fuel gas flow path with exhaust gas nozzle, and the combustion gas is in corresponding combustion
It flows in flow of air path and is sprayed in corresponding exhaust gas nozzle punishment grade；
Wherein, air from the hollow portion and surrounding space of distributor flow, the air by the hollow portion with it is described
Direct current wind is formed at the space that multiple exhaust gas nozzles are formed；
Flow guiding disc is formed for making by the air of the flow guiding disc positioned at the exit of the inlet air flow path
Even swirling eddy；
Ignitor is located at the distributor side, for the gas ignition；
Igniter fuel pipe, is separate fuel pipe, provides fuel for lighting a fire to the ignitor；With
Burn cylinder, is formed in outside the distributor, the flow guiding disc, the ignitor and the igniter fuel pipe
Portion, for providing mixing and burning place for combustion gas and air.
Further, each exhaust gas nozzle has opposite first end and the second end, and the first end is opening
It holds and is docked with corresponding combustion gas distribution cavity, the second end is closed end；Close to described second in the exhaust gas nozzle
The first circular hole and long hole radially penetrated through is equipped at the tube wall of end, first circular hole and the long hole are along the exhaust gas nozzle
Tube wall it is positioned opposite, the relatively close the second end of long hole, first circular hole is described for spraying level-one combustion gas
Long hole is for spraying second gas burning.
Further, the first combustion gas spout, first combustion are correspondingly provided at 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 of composition.
Further, corresponding spout regulating mechanism is additionally provided at the long hole of each exhaust gas nozzle, by adjusting the spray
The position of the mouth relatively described long hole of regulating mechanism, the flow sprayed with regulating gas from the long hole.
Further, at the second end of each exhaust gas nozzle be equipped with axially through the first threaded hole；
The corresponding spout regulating mechanism of each exhaust gas nozzle includes：
Cover-shaped body, for being covered at the second end of corresponding exhaust gas nozzle, wherein axis is equipped at the top of the cover-shaped body
To perforation the second circular hole corresponding with first threaded hole；
Second combustion gas spout, radially runs through the side-walls of the cover-shaped body, by rotating described in the cover-shaped body change
Position of the second combustion gas spout relative to the long hole, the flow sprayed with regulating gas from the long hole；With
Fastener, for across second circular hole and first threaded hole being correspondingly arranged, by the spout tune
Section mechanism is fixed at the exhaust gas nozzle.
Further, the camber line and the circumference and the gas injection that the long hole of each exhaust gas nozzle is formed on its tube wall circumference
The angle that the intersection point of tube hub line is formed is 60 degree.
Further, in the multiple exhaust gas nozzle two exhaust gas nozzles of arbitrary neighborhood along the distributor axis to submission
Mistake arrangement.
Further, the flow guiding disc includes：
Outer housing, is used for air circulation, and the outer housing is the hollow cylinder of both ends open, including input end and outlet
End, the air are flowed out after being entered by input end by outlet end；
Multiple guide vanes are arranged in the inside of the outer housing and middle part at an angle and form cavity, for make through
The air for crossing the multiple guide vane forms swirling eddy；
Inner housing is set at the cavity, for connecting with the multiple guide vane；
Closed plate, blocks the inlet port in the inner housing, and the closed plate connect and connected with the inner housing
Place's setting has the gap；With
Support frame, one end are fixed with the outer housing, and the other end is used for for being fixedly connected with the exhaust gas nozzle by institute
Outer housing is stated to be fixedly mounted at the exhaust gas nozzle.
Further, the flow guiding disc further includes taper ring, and the taper ring is arranged at the outlet end of the outer housing,
Multiple through-holes are provided on the wall of the taper ring, the taper ring is in flared along the air-flow direction.
Classification combustion gas low NO of the invention is only by shape inside the combustion gas distribution cavity and exhaust gas nozzle in distributor
At fuel gas flow path, it is that air and combustion gas are abundant that air is blown inside the hollow portion and fuel gas conduit of day distributor by blower
It is mixed and burned, without air flow conduit is separately provided, simplifies equipment, save space and cost.
Flow guiding disc is arranged in the tail end of inlet air flow path in classification combustion gas low NO of the invention, and air is in blower
It blows down, the Whirl deposite tank and second level formed by the rotary gas after the center direct current wind that is formed after hollow portion, flow guiding disc
Air is divided into three layers of combustion air by the gap air between fuel nozzle ports and flow guiding disc.It is sprayed from exhaust gas nozzle the first combustion gas spout
Out level-one combustion gas and second gas burning is sprayed from the second combustion gas spout combustion gas is divided into two layers of ejection, three layers of combustion-supporting sky in burner
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.
Level-one exhaust gas nozzle nozzle uses bell shape, in order to obtain best combustion gas spouting velocity, avoid firing
Gas generates vortex, to reduce the generation of nitrogen oxides.
The multiply second gas burning thread that the Rotating with Uniform air-flow and secondary fuel spout formed after flow guiding disc radially sprays is mixed
It closes, enhances air and combustion gas mixing, shorten flue gas in the residence time of high-temperature region, advantageously reduce flame temperature.Water conservancy diversion
The outlet end of the outer housing of disk connects a taper ring, and many places aperture on it does not take off the purpose is to play the role of surely firing
Fire is not put out a fire, to enhance burning.
Burner cylinder does variable diameter processing in outlet end, first reduces and becomes larger afterwards, it is therefore an objective to prevent from being tempered when burning.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing：
Fig. 1 is the schematic perspective view of classification combustion gas low NO according to an embodiment of the invention；
Fig. 2 is the main view of classification combustion gas low NO according to an embodiment of the invention；
Fig. 3 is the structural schematic diagram 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 schematic diagram；
Fig. 5 is the structural representation of the spout regulating mechanism of classification combustion gas low NO according to an embodiment of the invention
Figure；
Fig. 6 is the main 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 schematic diagram of classification combustion gas low NO 100 according to an embodiment of the invention.Fig. 2 is root
According to the main view of the classification combustion gas low NO of one embodiment of the invention.
As shown in Fig. 2, the present embodiment is illustrated based on Fig. 2 referring also to Fig. 1, it is classified combustion gas low NO 100
It may be used to combustion gas and mix well with air fractional combustion to reduce the nitrogen oxides generated after burning.It is schematical in Fig. 2
Showing 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 set to inside burning cylinder 40.Fig. 1 will
The cylinder 40 that burns omits.
Distributor 10 is used to the combustion gas and provides flow path, may include ontology 11 and multiple exhaust gas nozzles
12.Ontology 11 is with cylinder with dissection, and external is interlayer 111, inside is hollow portion 112, and the interlayer 111 is used for combustion gas
Assemble, 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
Cavity 114 is distributed, the hollow portion 112 is for passing through air.Multiple exhaust gas nozzles 12, the multiple exhaust gas nozzle 12 and described
Multiple combustion gas distribution cavitys 114 are corresponded and are connected, each corresponding combustion gas distribution cavity 114 and 12 shape of exhaust gas nozzle
At corresponding fuel gas flow path, the combustion gas is flowed in corresponding fuel gas flow path and at corresponding exhaust gas nozzle 12
Classification sprays.In the present embodiment, burning cylinder 40 is blowed air into the side blowing air of burning cylinder 40, and using blower
In, which blows air-flow direction mainly towards the hollow portion 112 of the ontology 11 of distributor 10 towards igniter fuel pipe 12
Place is blown, therefore air, from when the flowing of the hollow portion 112 and surrounding space of distributor 10, the air passes through the hollow portion
Direct current wind is formed at 112 spaces formed with the multiple exhaust gas nozzle 12.The present invention is classified combustion gas low NO 100 and is dividing
Fuel gas flow path is formed inside orchestration 10, air is flowed in the dispenser exterior, and is blown by blower to distributor 10,
Without air flow conduit is separately provided, equipment is simplified, space and cost are saved.
As a specific embodiment, the hollow cylinder that ontology 11 can be arranged for the circular ring shape of jacketed, combustion gas distribution
Combustion gas is arranged side by side at one end of cavity and distributes cavity 114, combustion gas is distributed cavity 114 and exhaust gas nozzle and connected using fastener 16
It connects.The shape of ontology 11 is not necessarily fixed as circular ring shape hollow cylinder, can be other shapes, for example, as other realities
It applies in example, ontology 11 is regular hexagon hollow cylinder or octagon hollow cylinder, and gas inlet is arranged on its outer layer
111, combustion gas distribution cavity 114 is arranged side by side in end, hollow portion is used for air circulation.
Fig. 3 is the structural schematic diagram 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 opposite first end 121 and the second end 122, the first end 121 is
Open end and with corresponding combustion gas distribution cavity 114 dock, the second end 122 be closed end.In the exhaust gas nozzle 12
The first circular hole 123 and long hole 124 radially penetrated through, first circular hole 123 are equipped at the tube wall of the second end 122
It is positioned opposite along the tube wall of the exhaust gas nozzle 12 with the long hole 124, the relatively close the second end of long hole 124
122, first circular hole 123 is for spraying level-one combustion gas, and the long hole 124 is for spraying second gas burning.In this way setting so that
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 of the ejection (as shown in Figure 5) of second combustion gas spout 152 can be sufficiently mixed with the swirling eddy come out from flow guiding disc, by force
Air and combustion gas mixing are changed, have shortened flue gas in the residence time of high-temperature region, advantageously reduce flame temperature.
Be equipped at the second end 122 of each exhaust gas nozzle 12 axially through the first threaded hole 126, which is used for
Through fastener.As shown in Figs. 1-2, institute is collectively formed in the inner space of the combustion gas distribution cavity 11 and the exhaust gas nozzle 12
Fuel gas flow path is stated, the combustion gas enters in ontology 11 from the gas inlet 113, then distributes cavity by the combustion gas
114 outflows are used after flowing through the first end 121 by flowing to the ejection of the second end 122 inside the exhaust gas nozzle 12
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 schematic diagram.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 angle that the center line of the first combustion gas spout 125 at place and the centerline direction of the exhaust gas nozzle 12 are constituted is 10-60 degree.The
One combustion gas spout 125 is that horn-like purpose is to avoid combustion gas from generating vortex, to drop to obtain best combustion gas spouting velocity
The generation of low NOx.As a preferred embodiment, the first combustion gas spout 125 can be movable and removably be arranged
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 that horn-like purpose is to avoid combustion gas from generating vortex, to reduce to obtain best combustion gas spouting velocity
The generation of nitrogen oxides.
In the camber line and the circumference and the exhaust gas nozzle that the long 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 distribution cavity 114 during interconnection, can
It is equidistant setting be placed at the ontology, can also be placed at the not equal setting of spacing of ontology, it is preferable that institute
Two exhaust gas nozzles 12 for stating arbitrary neighborhood in multiple exhaust gas nozzles 12 are axial in interlaced arrangement along the distributor 10.Distance can
With flexible modulation, so that combustion gas is formed a uniform and stable gas belt, reach and reach efficient with the air inside exhaust gas nozzle 12
Mixed purpose.
Fig. 5 shows the structure of the spout regulating mechanism of classification combustion gas low NO according to an embodiment of the invention
Schematic diagram.Spout regulating mechanism is correspondingly arranged at the second end 122 of each exhaust gas nozzle 12.Each spout regulating mechanism 15
It all include cover-shaped body 151, the second combustion gas spout 152 and fastener.Cover-shaped body 151 is for being covered on corresponding exhaust gas nozzle 12
At the second end 122, wherein at the top of the cover-shaped body 151 be equipped with axially through with first threaded hole 126 corresponding second
Circular hole 153.The radial side-walls for running through the cover-shaped body 151 of second combustion gas spout 152, by rotating the cover-shaped body 151
Change position of the second combustion gas spout 152 relative to the long hole 124, is sprayed with regulating gas from the long hole 124
Flow.Fastener is used for across second circular hole 153 and first threaded hole 126 being correspondingly arranged, by the spout
Regulating mechanism 15 is fixed at the second end 122 of the exhaust gas nozzle 12.Preferably, fastener is bolt.
As a specific embodiment, as shown in Figs. 1-2, as a specific embodiment, exhaust gas nozzle 12 is connected to ontology
On 11, has the gap and be interspersed between the adjacent exhaust gas nozzle 12.The size shape of each exhaust gas nozzle 12 is the same,
With a distance from the second end 122 of the first combustion gas spout 125 and the second combustion gas spout 152 of any exhaust gas nozzle 12 from exhaust gas nozzle 12
It is equal.When exhaust gas nozzle 12 is at 11 side of ontology side by side and when not being interspersed, multiple first combustion gas spouts 125 in same
One plane, multiple second combustion gas spouts 152 are in same plane.Embodiment as one preferred, adjacent exhaust gas nozzle 12
Between it is axially staggered be arranged in 11 end of ontology, 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, achievees the purpose that efficiently to mix with the air of conveying.Certainly, according to
Actual needs, the first combustion gas spout 125 can be arranged side by side one or more.
As shown in Figs. 1-2, flow guiding disc 20 is located at the exit of the inlet air flow path, for making by the flow guiding disc
20 air forms Rotating with Uniform air-flow.The exit of inlet air flow path is arranged in flow guiding disc 20, that is, is arranged in 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 schematic diagram.As shown in the figure it is found that flow guiding disc 20 may include outer housing 21, multiple guide vanes 22, inner housing, closed plate
23 and support frame 24.
Outer housing 21 is used for air circulation, and the outer housing 21 is the hollow cylinder of both ends open, including 211 He of input end
Outlet end 212, the air are flowed out after being entered by input end 211 by outlet end 212.Multiple guide vanes 22 are arranged at an angle
It is listed in the inside of the outer housing 21 and middle part and forms cavity, for making the air shape by the multiple guide vane 22
At swirling eddy.Inner housing is set at the cavity, for connecting with the multiple guide vane 22.Closed plate 23 blocks
The inlet port of the inner housing, the closed plate 23 is connect with the inner housing and setting has the gap 231 in junction.Support
24 one end of frame is fixed with the outer housing, and the other end is used for for being fixedly connected with the exhaust gas nozzle 12 by the outer housing
21 are fixedly mounted at the exhaust gas nozzle 12.It is understood that the shape and outer housing 21 of inner housing and closed plate 23
Shape is adapted.Inner housing is also hollow cylinder similar with outer housing 21 simultaneously, is set at the center of outer housing 21 and outer
Shell 21 collectively constitutes ring-type, and guide vane 22 is fixed between inner housing and outer housing 21 by certain angle, makes to pass through water conservancy diversion
The air of blade 22 forms swirling eddy.Support frame 24 links together with outer housing 21, at the other end of support frame 24 and fires
Gas blowout pipe 12 is detachably connected, for the flow guiding disc 20 to be fixedly mounted on the exhaust gas nozzle 12.When air is by leading
After flow table 20 formed Rotating with Uniform air-flow mixed with the multiply combustion gas thread that secondary fuel spout radially sprays, enhance air with
Combustion gas mixing shortens flue gas in the residence time of high-temperature region, advantageously reduces flame temperature.
Preferably as one, the flow guiding disc 20 can also include taper ring 25, and the setting of taper ring 25 is described outer
At the outlet end 212 of shell 21, multiple through-holes 251 are provided on the wall of the taper ring 25, the taper ring 25 is along the air
Flow direction is in flared.The flow guiding disc 20 not only forms the air-flow of Rotating with Uniform, while taper ring 25 also acts as the work surely fired
With not de- fire is not put out a fire, to enhance burning.
Flow guiding disc 20 is arranged in the tail end of inlet air flow path in classification combustion gas low NO 100 of the invention.Make to have leisure
Gas forms center direct current wind in inlet air flow path, the rotary gas after flow guiding disc 20 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.The sprayed from exhaust gas nozzle 12
One combustion gas spout 125, which sprays level-one combustion gas and sprays second gas burning from the second combustion gas spout 152, is divided into two layers of ejection for combustion gas, fires
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 Figs. 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, be located at 10 side of distributor, for the gas ignition.Igniting
Cartridge 31 is separate fuel pipe, provides fuel for lighting a fire to the ignitor 30.As one embodiment, the igniting
Cartridge 31 is that fuel gas conduit is separately provided in opposite exhaust gas nozzle 12, 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 to 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 setting with ignitor 30.This hair
The effect of bright middle steady combustion disk 32 of the setting one with multiple holes 321 is will to light a fire combustion gas uniform by formation after surely firing disk 32
Air-flow, it is ensured that the efficient pilot gas of ignitor 30 realizes the function of igniting.
It is understood that being also provided with valve (not shown) on the igniter fuel pipe 31, need to light a fire
Valve described in Shi Kaiqi uses combustion gas for igniting by the igniter fuel pipe 31, after the completion of igniting, closes the valve.
Under normal circumstances, ignitor 30 can be one or two, when ignitor 30 is one, the ignitor 30 setting
There is certain suitable distance with steady combustion disk 32 after surely combustion disk 32, realizes arcing igniting.When ignitor 30 is two, two
There is gap between a ignitor 30, between electrode and steady combustion disk 32 there is also gaps, and in arcing ignition process, distance is close
Realize ignition function.It can be seen that two ignitors compare an electrode, ignition effectiveness is higher.Certainly in the specific implementation,
The number of its ignitor 30 with the need depending on.
Burn distributor, the flow guiding disc 20, the ignitor 30 and the igniter fuel pipe described in cylinder-shaped Cheng Yu
31 outside, for providing mixing and burning place for combustion gas and air.As the burning cylinder 40 in space is provided, it is being located at
Circumferential size at the second end 122 of the exhaust gas nozzle 12 first reduces to be increased (referring to fig. 2) afterwards, it is therefore an objective to when burning
Prevent the generation of tempering.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (8)
1. a kind of classification combustion gas low NO, including：
Distributor is used to provide flow path to combustion gas, including：
Ontology, for cylinder with dissection, external is interlayer, inside is hollow portion, and the interlayer is assembled for combustion gas, described
It is formed with fuel gas inlet at interlayer, spaced apart multiple combustion gas distribution cavitys are formed at the top of the interlayer；
Multiple exhaust gas nozzles, the multiple exhaust gas nozzle and the multiple combustion gas distribution cavity are corresponded and are connected, 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
It flows in path and is sprayed in corresponding exhaust gas nozzle punishment grade；
Wherein, air from the hollow portion and surrounding space of distributor flow, the air by the hollow portion with it is the multiple
Direct current wind is formed at the space that exhaust gas nozzle is formed；
Flow guiding disc, positioned at the exit of inlet air flow path, for making the air by the flow guiding disc form Rotating with Uniform gas
Stream；
Ignitor is located at the distributor side, for the gas ignition；
Igniter fuel pipe, is separate fuel pipe, provides fuel for lighting a fire to the ignitor；With
Burn cylinder, is formed in outside the distributor, the flow guiding disc, the ignitor and the igniter fuel pipe, uses
In providing mixing and burning place for combustion gas and air；
Each exhaust gas nozzle have opposite first end and the second end, the first end be open end and with it is corresponding
Combustion gas distribution cavity docking, the second end be closed end；Close to the tube wall of the second end in the exhaust gas nozzle
Place is equipped with the first circular hole and long hole radially penetrated through；
Corresponding spout regulating mechanism is additionally provided at the long hole of each exhaust gas nozzle, by adjusting the spout regulating mechanism
The position of the relatively described long hole, the flow sprayed with regulating gas from the long hole；
The first combustion gas spout is correspondingly provided at first circular hole of each exhaust gas nozzle, the first combustion gas spout is in loudspeaker
Shape and the tube wall for protruding from the exhaust gas nozzle；
The first combustion gas spout is movable and is removably arranged on the tube wall of the exhaust gas nozzle；
The ontology is regular hexagon hollow cylinder or octagon hollow cylinder.
2. classification combustion gas low NO according to claim 1, which is characterized in that
First circular hole and the long hole are positioned opposite along the tube wall of the exhaust gas nozzle, the long hole relatively close described
Two ends, first circular hole is for spraying level-one combustion gas, and the long hole is for spraying second gas burning.
3. classification combustion gas low NO according to claim 1, which is characterized in that
The angle that the center line of the first combustion gas spout at each exhaust gas nozzle and the centerline direction of the exhaust gas nozzle are constituted
For 10-60 degree.
4. classification combustion gas low NO according to claim 3, which is characterized in that
At the second end of each exhaust gas nozzle be equipped with axially through the first threaded hole；
The corresponding spout regulating mechanism of each exhaust gas nozzle includes：
Cover-shaped body, for being covered at the second end of corresponding exhaust gas nozzle, wherein axial pass through is equipped at the top of the cover-shaped body
Lead to the second circular hole corresponding with first threaded 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 long hole, the flow sprayed with regulating gas from the long hole；With
Fastener, for across second circular hole and first threaded hole being correspondingly arranged, the spout to be adjusted machine
Structure is fixed at the exhaust gas nozzle.
5. classification combustion gas low NO according to claim 4, which is characterized in that
The friendship of camber line and the circumference and the exhaust gas nozzle center line that the long hole of each exhaust gas nozzle is formed on its tube wall circumference
The angle that point is formed is 60 degree.
6. classification combustion gas low NO according to claim 1, which is characterized in that
Two exhaust gas nozzles of arbitrary neighborhood are along the distributor axis in interlaced arrangement in the multiple exhaust gas nozzle.
7. classification combustion gas low NO according to claim 1 to 6, which is characterized in that
The flow guiding disc includes：
Outer housing, is used for air circulation, and the outer housing is the hollow cylinder of both ends open, including inlet end and an outlet end, institute
It states after air is entered by input end and is flowed out by outlet end；
Multiple guide vanes are arranged in the inside of the outer housing and middle part and form cavity, at an angle for making by institute
The air for stating multiple guide vanes forms swirling eddy；
Inner housing is set at the cavity, for connecting with the multiple guide vane；
Closed plate, blocks the inlet port in the inner housing, and the closed plate connect with the inner housing and sets in junction
It is equipped with gap；With
Support frame, one end are fixed with the outer housing, and for the other end for being fixedly connected with the exhaust gas nozzle, being used for will be described outer
Shell is fixedly mounted at the exhaust gas nozzle.
8. classification combustion gas low NO according to claim 7, which is characterized in that
The flow guiding disc further includes taper ring, and the taper ring is arranged at the outlet end of the outer housing, the taper ring
Multiple through-holes are provided on wall, the taper ring is in flared along the air-flow direction.
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| CN106524152B true CN106524152B (en) | 2018-11-27 |
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| CN107120652B (en) * | 2017-05-09 | 2023-07-21 | 北京水木星源环保科技有限公司 | Graded gas low-nitrogen burner |
| CN107270287A (en) * | 2017-06-22 | 2017-10-20 | 北京奥林联诚能源设备有限公司 | A kind of low NO |
| CN107166381B (en) * | 2017-06-28 | 2018-12-11 | 河南科技大学 | A kind of tangential movable nozzle turbulent burner |
| CN107191932B (en) * | 2017-07-07 | 2019-08-30 | 江阴创捷电气设备有限公司 | Low NO |
| 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 |
| 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 |
| CN109442399B (en) * | 2018-07-20 | 2020-02-18 | 北京航空航天大学 | Opposed direct injection low-nitrogen combustor |
| CN109099424A (en) * | 2018-09-04 | 2018-12-28 | 辽宁工程技术大学 | A kind of device with injection, combustion function |
| CN116642180B (en) * | 2023-04-07 | 2023-11-17 | 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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| US3685740A (en) * | 1969-10-29 | 1972-08-22 | Air Reduction | Rocket burner with flame pattern control |
| US6282904B1 (en) * | 1999-11-19 | 2001-09-04 | Power Systems Mfg., Llc | Full ring fuel distribution system for a gas turbine combustor |
| CN201535508U (en) * | 2009-06-30 | 2010-07-28 | 洛阳市隆盛冶金设备有限公司 | Gas combustor |
| CN202392802U (en) * | 2011-11-22 | 2012-08-22 | 广东万方意高能源设备有限公司 | Novel air intake mechanism for adjustable combustor |
| JP6021705B2 (en) * | 2013-03-22 | 2016-11-09 | 三菱重工業株式会社 | Combustor and gas turbine |
| CN204063046U (en) * | 2014-08-12 | 2014-12-31 | 广东江联能源环保有限公司 | A kind of low nitrogen oxide gas injection apparatus |
| CN204756933U (en) * | 2015-07-06 | 2015-11-11 | 广东意高能源科技股份有限公司 | Gas spray gun that combustor multitube is adjustable |
| CN206320745U (en) * | 2016-11-28 | 2017-07-11 | 北京水木星源环保科技有限公司 | One kind classification combustion gas low NO |
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