CN206247331U - One kind classification combustion gas low NO - Google Patents
One kind classification combustion gas low NO Download PDFInfo
- Publication number
- CN206247331U CN206247331U CN201621284444.3U CN201621284444U CN206247331U CN 206247331 U CN206247331 U CN 206247331U CN 201621284444 U CN201621284444 U CN 201621284444U CN 206247331 U CN206247331 U CN 206247331U
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- combustion gas
- fuel nozzle
- air
- passage
- fuel
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Abstract
The utility model discloses one kind classification combustion gas low NO, belong to burner arts.Classification combustion gas low NO includes distributor, flow guiding disc, ignitor and burning cylinder.Distributor provides flow path, including body and multiple fuel nozzles for the combustion gas and air, and combustion gas is classified ejection at fuel nozzle, wherein, the air forms direct current wind by the space that the hollow bulb and the multiple exhaust gas nozzle are surrounded.Flow guiding disc is located at the exit of the inlet air flow path, for making air form swirling eddy.Ignitor is located at the distributor side, provides fuel by fuel nozzle proximate to it to light a fire.Burning cylinder is used to provide mixing and burning place for combustion gas and air.Three layers of combustion air and two-layer combustion gas are formed in classification combustion gas low NO of the present utility model, is arranged by different level, reduce the concentration of oxygen in flame temperature and flue gas, effectively reduce the discharge of nitrogen oxides, meet existing environmental requirement.
Description
Technical field
The utility model is related to burner arts, more particularly to a kind of classification combustion gas low NO.
Background technology
Nitrogen oxides as atmosphere pollution one of arch-criminal, discharge limitation of the country to nitrogen oxides constantly become tight, therefore,
Relevant criterion has been formulated in discharge of the China to boiler atmosphere pollution, and the low nitrogen transformation to boiler is very urgent.
The type of combustion apparatus and burner is one of factor of NOx for influence boiler emission.It is existing that some are low
Nitrogen burner, mainly based on burn classification, bias combustion, but fuel and air unreasonable distribution, often result in burning not
Completely, combustion instability, efficiency of combustion is low, the problems such as NOx emission is unsatisfactory for environmental requirement.
Utility model content
The purpose of this utility model is to provide a kind of classification combustion gas low NO, nitrogen oxygen when can effectively reduce fuel gas buring
The generation of compound.
The utility model one is further objective is that the space of igniter will be saved.
Especially, the utility model provides a kind of classification combustion gas low NO, including：
Distributor, for the combustion gas and air provide flow path, the distributor includes：
Body, is that, with cylinder with dissection, it is outside for interlayer, inside are hollow bulb, by interlayer aggregation combustion gas,
Fuel gas inlet is formed with the interlayer, spaced apart multiple combustion gas distribution cavitys is formed with the top of the interlayer,
Multiple fuel nozzles, the multiple fuel nozzle and the multiple combustion gas distribution cavity are corresponded and in succession
Connect, the corresponding fuel gas flow path that each corresponding combustion gas distribution cavity is formed with fuel nozzle, the combustion gas is corresponding
Flowing and the classification ejection at corresponding fuel nozzle in fuel gas flow path,
Wherein, the air flows from the hollow bulb and surrounding space of the distributor, and the air is by described hollow
Portion forms direct current wind with the space that the multiple exhaust gas nozzle is surrounded；
Flow guiding disc, positioned at the exit of the inlet air flow path, makes to form uniform rotation by the air of the flow guiding disc
Turn air-flow；
Ignitor, positioned at the distributor side, provides fuel, by the point by fuel nozzle proximate to it
The gas ignition is given in thermoelectricity pole；
Burning cylinder, is formed at the distributor, the flow guiding disc and the ignitor and outside, by the burning
Cylinder provides mixing and burning place for combustion gas and air.
Further, each fuel nozzle has relative first end and the second end, and the first end is opening
Hold and docked with corresponding combustion gas distribution cavity, the second end is blind end, near described second in the fuel nozzle
First passage and the second passage of radial direction insertion, first passage and second ventilation are provided with the tube wall of end
Hole is positioned opposite along the tube wall of the fuel nozzle, the relatively close the second end of the second passage, by described
One passage sprays one-level combustion gas, and second gas burning is sprayed by second passage.
Further, one-level spout is correspondingly provided with the first passage of each fuel nozzle, the one-level spout is in loudspeaker
Shape and protrude from the tube wall of the fuel nozzle.
Further, the centerline direction structure of the center line of the one-level spout at each fuel nozzle and the fuel nozzle
Into angle be 10-60 degree.
Further, the second passage of each fuel nozzle is elongated hole, at the second passage of each fuel nozzle also
Corresponding spout governor motion is provided with, by adjusting the position of relatively described second passage of the spout governor motion, to adjust
The flow that gas fuel saving sprays from second passage.
Further, be provided with the second end of each fuel nozzle axially through circular hole, each fuel nozzle is corresponding
Spout governor motion includes：
Cover-shaped body, is covered at the second end of corresponding fuel nozzle, wherein, the cover-shaped body top is provided with axially to be passed through
Logical screwed hole, the screwed hole is corresponding with the circular hole；
Two grades of spouts, radially run through the side-walls of the cover-shaped body, and two grades of sprays are made by rotating the cover-shaped body
The change in location of relatively described second passage of mouth, with the flow that regulating gas spray from second passage, and
Fastener, through the screwed hole and the circular hole, the fuel spray is fixed on by the spout governor motion
At pipe.
Further, the second passage of each fuel nozzle is formed on its tube wall circumference camber line and the circumference and this
The angle that the intersection point of fuel nozzle center line is formed is 60 degree.
Further, it is provided with a little at the tube wall close to the ignitor with the hand-to-hand fuel nozzle of the ignition power
Fire hole, the fire hole provides combustion gas for the ignitor.
Further, the flow guiding disc includes：
Shell body, is the hollow cylinder of both ends open, including entrance point and the port of export, after the air is entered by entrance point
Flowed out by the port of export；
Multiple guide vanes, be spaced at an angle the shell body inner side and middle part formed cavity, make through
The air for crossing the multiple guide vane forms swirling eddy；
Inner housing, is hollow cylinder, and its outside is connected at the cavity with the multiple guide vane；
Closed plate, is arranged at the cavity, the closed plate be connected to the inner side of the inner housing and with the inner casing
The inner side of body forms gap；With
Support frame, one end is fixed with the shell body, and the other end is fixedly connected with the fuel nozzle, by the support
Be fixedly mounted on the shell body at the fuel nozzle by frame.
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.
Classification combustion gas low NO of the present utility model, the air passes through the hollow bulb and the multiple gas injection
The space that pipe is surrounded, the gap between flow guiding disc, two grades of spouts and the flow guiding disc form three layers of combustion air, respectively are
Center direct current wind, a swirling eddy and gap air.The one-level spout and two grades of spouts spray two-layer combustion gas respectively.Described three
The backlayering time arrangement that layer combustion air, two-layer combustion gas and volume are inhaled, so as to the concentration of oxygen in reducing flame temperature and flue gas,
The discharge of nitrogen oxides is effectively reduced, existing environmental requirement is met.
According to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will be more
Plus understand of the present utility model above-mentioned and other purposes, advantages and features.
Brief description of the drawings
Describe some specific realities of the present utility model in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter
Apply example.Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that
What these accompanying drawings were not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the front view of the classification combustion gas low NO according to the utility model one embodiment；
Fig. 2 is the right view of the classification combustion gas low NO according to the utility model one embodiment；
Fig. 3 is the dimensional structure diagram of the classification combustion gas low NO according to the utility model one embodiment；
Fig. 4 is the exhaust gas nozzle of the classification combustion gas low NO according to the utility model one embodiment with fire hole
Structural representation；
Fig. 5 is the exhaust gas nozzle band one-level spout of the classification combustion gas low NO according to the utility model one embodiment
Structural representation；
Fig. 6 is the structure of the spout governor motion of the classification combustion gas low NO according to the utility model one embodiment
Schematic diagram；
Fig. 7 is the front view of the flow guiding disc of the classification combustion gas low NO according to the utility model one embodiment；
Fig. 8 is the right view of the flow guiding disc of the classification combustion gas low NO according to the utility model one embodiment.
Specific embodiment
Fig. 1 is the front view of the classification combustion gas low NO according to the utility model one embodiment.Fig. 2 is according to this
The right view of the classification combustion gas low NO of utility model one embodiment.As shown in figure 1, referring also to Fig. 2, this implementation
The classification combustion gas low NO of example, it can include distributor 10, flow guiding disc 20, ignitor 30 and combustion barrel in general manner
Body 40.
The distributor 10 provides flow path, including body 11 and multiple fuel nozzles 12 for the combustion gas and air.
The body 11 is the cylinder with interlayer 111, and it is outside for interlayer 111, inside are hollow bulb 112, by the interlayer 111
Aggregation combustion gas, 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 distributes cavity 114.
The multiple fuel nozzle 12 and the multiple combustion gas distribution cavity 114 are corresponded and dock connection, every a pair
The combustion gas distribution cavity 114 answered forms corresponding fuel gas flow path with fuel nozzle 12, and the combustion gas is in corresponding combustion gas stream
Flowing and the classification ejection at corresponding fuel nozzle 12 in dynamic path, wherein, the air is hollow from the distributor 10
Portion 112 and surrounding space are flowed, and the air is formed by the space that the hollow bulb 112 is surrounded with the multiple exhaust gas nozzle
Direct current wind.The flow guiding disc 20 is located at the exit of the inlet air flow path, makes to be formed by the air of the flow guiding disc 20
Rotating with Uniform air-flow.The ignitor 30 is located at the side of the distributor 10, is provided by fuel nozzle 12 proximate to it
Fuel, the gas ignition is given by the ignitor.The burning cylinder 40 is formed at the distributor 10, the water conservancy diversion
Disk 20 and the ignitor 30 and outside, by the burning cylinder for combustion gas and air provide mixing and burning place.
Fig. 3 is the dimensional structure diagram of the classification combustion gas low NO according to the utility model one embodiment.Fig. 4
It is the structural representation of the exhaust gas nozzle with fire hole of the classification combustion gas low NO according to the utility model one embodiment.
It should be noted that the exhaust gas nozzle shown in Fig. 4 carries fire hole 31, i.e., fuel spray close with the ignitor 30
Pipe, and other exhaust gas nozzles are without fire hole 31.Specifically, as shown in figure 3, each fuel nozzle 12 has relative first
End 121 and the second end 122 (referring to Fig. 4), the first end 121 are openend and distribute cavity with corresponding combustion gas
114 docking, the second end 122 is blind end, is set at the tube wall of the second end 122 in the fuel nozzle 12
There are first passage 123 and the second passage 124 of radial direction insertion, first passage 123 and second passage 124
Tube wall along the fuel nozzle 12 is positioned opposite, the relatively close the second end 122 of the second passage 124, passes through
First passage 123 sprays one-level combustion gas, and second gas burning is sprayed by second passage 124.
On the one hand, the air being blown into from the left side (referring to Fig. 1) of burning cylinder 40 through blower fan, by described hollow
Between space, 20, two grades of the flow guiding disc that portion 112 and the multiple exhaust gas nozzle are surrounded are between spout 134 and the flow guiding disc 20
Gap forms three layers of combustion air, respectively is center direct current wind, a swirling eddy and gap air.The one-level spout 125
Two-layer combustion gas is sprayed respectively with two grades of spouts 134.The backlayering time cloth that three layers of combustion air, two-layer combustion gas and volume are inhaled
Put, so as to the concentration of oxygen in reducing flame temperature and flue gas, effectively reduce the discharge of nitrogen oxides, meeting existing environmental protection will
Ask.
On the other hand, the uniform combustion gas for spraying is formed in the burner tube body from the one-level spout 125
The gas belt of even stabilization, the Efficient air exported with the hollow bulb 112 mixes so that combustion efficiency is more preferable.From one-level spout
The 125 anti-anti-avulsion fire of the combustion gas energy for constantly spraying and fire extinguishing are so as to stablize combustion flame, and the combustion gas of the one-level spout 125 is
Burnt under excess oxygen, the air of central tube is the cold air being passed directly into, and is thus susceptible to form the hollow flame of low temperature, from
And reduce the generation of nitrogen oxides.
Fig. 5 is the exhaust gas nozzle band one-level spout of the classification combustion gas low NO according to the utility model one embodiment
Structural representation.Fig. 6 is that the spout of the classification combustion gas low NO according to the utility model one embodiment adjusts machine
The structural representation of structure.As shown in Figure 5, it is preferable that one-level spray is correspondingly provided with the first passage 123 of each fuel nozzle 12
Mouth 125, the one-level spout 125 is in tube wall that is horn-like and protruding from the fuel nozzle 12.At each fuel nozzle 12
One-level spout 125 center line and the fuel nozzle 12 centerline direction constitute angle be 10-60 degree.Due to described
The flare of one-level spout 125 so that combustion gas is sprayed with optimum speed, it is to avoid the combustion gas produces vortex, so as to reduce nitrogen oxygen
The generation of compound.Second passage 124 of each fuel nozzle 12 is elongated hole, the second passage 124 of each fuel nozzle 12
The angle that the camber line formed on its tube wall circumference is formed with the intersection point of the circumference and the center line of fuel nozzle 12 is 60 degree.Often
Be provided with second end of one fuel nozzle 12 axially through circular hole 126.
As shown in figure 3, being additionally provided with corresponding spout governor motion 13 at the second passage 124 of each fuel nozzle 12
(referring to Fig. 6), by adjusting the position of relatively described second passage 124 of the spout governor motion 13, with regulating gas from
The flow that second passage 124 sprays.The corresponding spout governor motion 13 of each fuel nozzle 12 include cover-shaped body 131,
Two grades of spouts 134 and fastener 135.The cover-shaped body 131 is covered at the second end 122 of corresponding fuel nozzle 12, its
In, the top of the cover-shaped body 131 be provided with axially through screwed hole 132, the screwed hole 132 is corresponding with the circular hole 126.
Two grades of spouts 134 radial direction runs through the side-walls of the cover-shaped body 131, and described two are made by rotating the cover-shaped body 131
The change in location of level relatively described second passage 124 of spout 134, is sprayed with regulating gas from second passage 124
Flow.The fastener 135, such as bolt, through the screwed hole 132 and the circular hole 126, machine are adjusted by the spout
Structure 13 is fixed at the fuel nozzle 12.
As shown in figure 4, the fuel nozzle 12 close with the ignitor 30 is in the tube wall close to the ignitor 30
Place is provided with fire hole 31, and it is the ignitor 30 that preferably described fire hole 31 has two (referring to Fig. 4) described fire hole 31
Combustion gas is provided.The arcing at the fire hole 31 of the ignitor 30, realizes the function of igniting, this ignition structure volume
Small, compact conformation can save space.
Fig. 7 is the front view of the flow guiding disc of the classification combustion gas low NO according to the utility model one embodiment.Fig. 8
It is the right view of the flow guiding disc for being classified combustion gas low NO according to the utility model one embodiment.As shown in fig. 7, may be used also
So that referring to Fig. 8, the flow guiding disc 20 includes shell body 21, multiple guide vanes 22 and closed plate 24.The shell body 21 is two
The hollow cylinder of end opening, including entrance point 211 and the port of export 212, the air entered by entrance point 211 after by the port of export
212 outflows.The multiple guide vane 22 is spaced at the inner side of the shell body 21 at an angle and middle part forms sky
Chamber, makes to form swirling eddy by the air of the multiple guide vane 22.The inner housing 23 is hollow cylinder, outside it
Side is connected at the cavity with the multiple guide vane 22.The closed plate 24, is arranged at the cavity, the closing
Plate 24 is connected to the inner side of the inner housing 23 and forms gap with the inner side of the inner housing 23.One end of support frame as described above 25
Fixed with the shell body 21, the other end is fixedly connected with the fuel nozzle 12, by support frame as described above by the shell body
21 are fixedly mounted at the fuel nozzle 12.
Flow guiding disc 20 is set by the exit of the inlet air flow path so that flow through the air shape of the flow guiding disc 20
Into swirling eddy, the multiply combustion gas thread that the swirling eddy sprays with two grades of spouts 134 mixes, and enhances air and combustion
Gas mixes, and shortens residence time of the flue gas in high-temperature region, the temperature of combustion flame is advantageously reduced, when effectively reducing burning
The generation of nitrogen oxides.
Preferably, the flow guiding disc 20 also includes taper ring 26, and the taper ring 26 is arranged on going out for the shell body 21
At mouth end 212, multiple through holes are provided with the wall of the taper ring 26, the taper ring 26 is in enlarging along the air-flow direction
Shape.Flowed out by multiple through holes of the taper ring 26 from the air of the outflow of the flow guiding disc 20, formed tiny air stream from
And playing a part of steady combustion so that the burner does not take off fire and does not put out a fire, overheavy firing.
So far, although those skilled in the art will appreciate that detailed herein have shown and described of the present utility model showing
Example property embodiment, but, in the case where the utility model spirit and scope are not departed from, still can be according to disclosed in the utility model
Content directly determines or derives many other variations or modifications for meeting the utility model principle.Therefore, it is of the present utility model
Scope is understood that and regards as covering all these other variations or modifications.
Claims (10)
1. one kind is classified combustion gas low NO, including：
Distributor, for the combustion gas and air provide flow path, including：
Body, is that, with cylinder with dissection, it is outside for interlayer, inside are hollow bulb, described by interlayer aggregation combustion gas
Fuel gas inlet is formed with interlayer, spaced apart multiple combustion gas distribution cavitys is formed with the top of the interlayer,
Multiple fuel nozzles, the multiple fuel nozzle and the multiple combustion gas distribution cavity are corresponded and docking connection, often
The corresponding fuel gas flow path that one corresponding combustion gas distribution cavity is formed with fuel nozzle, the combustion gas is in corresponding combustion gas stream
Flowing and the classification ejection at corresponding fuel nozzle in dynamic path,
Wherein, the air flows from the hollow bulb and surrounding space of the distributor, the air by the hollow bulb with
The space that the multiple exhaust gas nozzle is surrounded forms direct current wind；
Flow guiding disc, positioned at the exit of the inlet air flow path, makes to form Rotating with Uniform gas by the air of the flow guiding disc
Stream；
Ignitor, positioned at the distributor side, provides fuel, by the ignition power by fuel nozzle proximate to it
The gas ignition is given in pole；
Burning cylinder, is formed at the distributor, the flow guiding disc and the ignitor and outside, by the burning cylinder
For combustion gas and air provide mixing and burning place.
It is 2. according to claim 1 to be classified combustion gas low NO, it is characterised in that
Each fuel nozzle has a relative first end and the second end, the first end be openend and with corresponding combustion
Qi leel is docked with cavity, and the second end is blind end, is set at the tube wall of the second end in the fuel nozzle
There are first passage and the second passage of radial direction insertion, first passage and second passage spray along the fuel
The tube wall of pipe is positioned opposite, the relatively close the second end of the second passage, and one is sprayed by first passage
Level combustion gas, second gas burning is sprayed by second passage.
3. it is according to claim 2 to be classified combustion gas low NO, it is characterised in that the first ventilation of each fuel nozzle
One-level spout is correspondingly provided with hole, the one-level spout is in tube wall that is horn-like and protruding from the fuel nozzle.
4. it is according to claim 3 to be classified combustion gas low NO, it is characterised in that the one-level spray at each fuel nozzle
The angle that the center line of mouth and the centerline direction of the fuel nozzle are constituted is 10-60 degree.
5. the classification combustion gas low NO according to any one of claim 2, it is characterised in that
Second passage of each fuel nozzle is elongated hole, and corresponding spout is additionally provided with the second passage of each fuel nozzle
Governor motion, by adjusting the position of relatively described second passage of the spout governor motion, with regulating gas from described
The flow that two passages spray.
It is 6. according to claim 5 to be classified combustion gas low NO, it is characterised in that
Be provided with second end of each fuel nozzle axially through circular hole,
The corresponding spout governor motion of each fuel nozzle includes：
Cover-shaped body, is covered at the second end of corresponding fuel nozzle, wherein, cover-shaped body top be provided with axially through
Screwed hole, the screwed hole is corresponding with the circular hole；
Two grades of spouts, radially run through the side-walls of the cover-shaped body, and two grades of spout phases are made by rotating the cover-shaped body
To the change in location of second passage, with the flow that regulating gas spray from second passage, and
Fastener, through the screwed hole and the circular hole, the spout governor motion is fixed at the fuel nozzle.
7. the classification combustion gas low NO according to claim 6, it is characterised in that
The camber line that second passage of each fuel nozzle is formed on its tube wall circumference and the circumference and the fuel nozzle center
The angle that the intersection point of line is formed is 60 degree.
8. the classification combustion gas low NO according to any one of claim 7, it is characterised in that with the ignitor
Close fuel nozzle is provided with fire hole at the tube wall close to the ignitor, and the fire hole is carried for the ignitor
For combustion gas.
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, is the hollow cylinder of both ends open, including entrance point and the port of export, the air entered by entrance point after by going out
The outflow of mouth end；
Multiple guide vanes, the inner side and middle part that the shell body is spaced at an angle forms cavity, makes by institute
The air for stating multiple guide vanes forms swirling eddy；
Inner housing, is hollow cylinder, and its outside is connected at the cavity with the multiple guide vane；
Closed plate, is arranged at the cavity, the closed plate be connected to the inner side of the inner housing and with the inner housing
Inner side forms gap；With
Support frame, one end is fixed with the shell body, and the other end is fixedly connected with the fuel nozzle, will by support frame as described above
The shell body is fixedly mounted at the fuel 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621284444.3U CN206247331U (en) | 2016-11-28 | 2016-11-28 | One kind classification combustion gas low NO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621284444.3U CN206247331U (en) | 2016-11-28 | 2016-11-28 | One kind classification combustion gas low NO |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206247331U true CN206247331U (en) | 2017-06-13 |
Family
ID=59002100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621284444.3U Expired - Fee Related CN206247331U (en) | 2016-11-28 | 2016-11-28 | One kind classification combustion gas low NO |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206247331U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524154A (en) * | 2016-11-28 | 2017-03-22 | 北京水木星源环保科技有限公司 | Gas-graded low-NOx burner |
| CN107166381A (en) * | 2017-06-28 | 2017-09-15 | 河南科技大学 | A kind of tangential movable nozzle turbulent burner |
| CN110056874A (en) * | 2019-03-19 | 2019-07-26 | 山东博然电力科技有限公司 | A kind of gas combustion apparatus controlling NO_x formation |
-
2016
- 2016-11-28 CN CN201621284444.3U patent/CN206247331U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524154A (en) * | 2016-11-28 | 2017-03-22 | 北京水木星源环保科技有限公司 | Gas-graded low-NOx burner |
| CN107166381A (en) * | 2017-06-28 | 2017-09-15 | 河南科技大学 | A kind of tangential movable nozzle turbulent burner |
| CN110056874A (en) * | 2019-03-19 | 2019-07-26 | 山东博然电力科技有限公司 | A kind of gas combustion apparatus controlling NO_x formation |
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| GR01 | Patent grant | ||
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Granted publication date: 20170613 Termination date: 20191128 |