CN206320745U - One kind classification combustion gas low NO - Google Patents

One kind classification combustion gas low NO Download PDF

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Publication number
CN206320745U
CN206320745U CN201621284443.9U CN201621284443U CN206320745U CN 206320745 U CN206320745 U CN 206320745U CN 201621284443 U CN201621284443 U CN 201621284443U CN 206320745 U CN206320745 U CN 206320745U
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CN
China
Prior art keywords
classification
combustion gas
fuel
fuel nozzle
gas
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Expired - Fee Related
Application number
CN201621284443.9U
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Chinese (zh)
Inventor
周浩
任雯
刘宁
王涛
许向阳
倪云峰
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BEIJING SHUIMU XINGYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
Original Assignee
BEIJING SHUIMU XINGYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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Priority to CN201621284443.9U priority Critical patent/CN206320745U/en
Application granted granted Critical
Publication of CN206320745U publication Critical patent/CN206320745U/en
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Abstract

Combustion gas low NO is classified the utility model discloses one kind, is related to technical field of burner.The utility model includes classification gas distributor, and the classification gas distributor includes distributor body, multiple classification fuel nozzles and burner cylinder.Distributor body is that with cylinder with dissection, spaced apart multiple fuel distribution cavities are formed with the top of interlayer.Multiple classification fuel nozzles and multiple fuel distribution cavities are corresponded and docking connection.The corresponding fuel gas flow path that each corresponding fuel distribution cavity is formed with classification fuel nozzle, combustion gas is flowed in corresponding fuel gas flow path and sprayed in corresponding classification fuel nozzle punishment level.Burner tube body is formed at outside the classification gas distributor, is that combustion gas and air provide mixing and burning place.Distributor of the present utility model has multiple classification fuel nozzles that combustion gas is equably classified to ejection and burnt, and effectively reduces NOx discharge, meets existing environmental requirement.

Description

One kind classification combustion gas low NO
Technical field
The utility model is related to low NO technical field, more particularly to a kind of classification combustion gas low NO.
Background technology
Atmosphere pollution turns into the focus of present global concern, and it is that nitrogen oxidation is closed to cause one of main arch-criminal of atmosphere pollution Thing.The factor of oxynitrides formation can be summarized as three aspects in influence flue gas, and first aspect is, combustion relevant with fuel characteristic Nitrogen is more in material, easier generation oxynitrides;Second aspect is relevant with the technical parameter in combustion process, temperature of such as burning When degree reaches a certain critical-temperature, the content of oxynitrides has exponent relation rising with temperature;The third aspect and combustion apparatus And the type of burner is relevant.In China, increasingly strict, most power stations of the popularization used with combustion gas and environmental requirement It is not up to standard that boiler and Industrial Boiler match somebody with somebody burner oxynitride discharge, pollutes environment.Therefore research low NO turns into Solve one of atmosphere pollution effective ways.
Existing low NO, mainly by burn classification, dense nitrogen burning based on, due to fuel and air distribution do not conform to Reason, often results in incomplete combustion, combustion instability, the problems such as oxynitride discharge is unsatisfactory for environmental requirement.
Utility model content
One of the present utility model aims to overcome that prior art defect is fully mixed there is provided a kind of combustion gas and combustion air Close, discharged nitrous oxides are low and flameholding, the classification combustion gas low NO of high combustion efficiency.
Especially, the utility model provides a kind of classification combustion gas low NO, including:Gas distributor is classified, is given Combustion gas and air provide flow path, and the classification gas distributor includes:
Distributor body, it, with cylinder with dissection, is that interlayer, inside are hollow bulb outside it, combustion gas passes through the folder to be It is formed with strata collection, the interlayer at the top of fuel gas inlet, the interlayer and is formed with spaced apart multiple fuel distribution cavities;
Multiple classification fuel nozzles, the multiple classification fuel nozzle and the multiple fuel distribution cavity are corresponded and right Connect in succession, the corresponding fuel gas flow path that each corresponding fuel distribution cavity is formed with classification fuel nozzle, the combustion gas exists Flow and sprayed in corresponding classification fuel nozzle punishment level in corresponding fuel gas flow path;
Burner cylinder, is formed at outside the classification gas distributor, is that combustion gas and air provide mixing and combustion field Institute.
Further, each classification fuel nozzle has relative first end and the second end, and the first end is Openend and docked with corresponding fuel distribution cavity, the second end is blind end, close to institute in the classification fuel nozzle State the one-level perforate and two grades of perforates that radial direction insertion is provided with the tube wall of the second end, the one-level perforate and two grades of perforates Tube wall along the classification fuel nozzle is positioned opposite, and the relatively close the second end of two grades of perforates, the one-level is opened Hole sprays one-level combustion gas, and two grades of perforates spray second gas burning.
Further, it is described classification fuel nozzle first end by fastener nest going out in the fuel distribution cavity Gas end, by adjusting the cooperation distance between the classification fuel nozzle and the fuel distribution cavity, so that the adjustment classification The relative position of the relatively described fuel distribution cavity of fuel nozzle.
Further, the one-level tapping of each classification fuel nozzle is correspondingly provided with the first combustion gas spout, first combustion Gas blowout mouthful is in tube wall that is horn-like and protruding from the classification fuel nozzle.
Further, the axis direction of fuel nozzle is classified described in the first gas injection opening's edge at each classification fuel nozzle α is fixedly mounted on the one-level tapping at a predetermined angle;
Alternatively, the predetermined angle is 10 ° -60 °.
Further, the one-level the number of openings is multiple, and multiple one-level perforates are along same axis direction uniform intervals cloth Put;
Correspondingly, the quantity of the first combustion gas spout is multiple, and multiple first combustion gas spouts are in parallel arrangement.
Further, two grades of perforates of each classification fuel nozzle are elongated hole,
Two grades of tappings of each classification fuel nozzle are additionally provided with corresponding spout governor motion, by adjusting the spout The position of the relatively described two grades of perforates of governor motion, the flow sprayed with regulating gas from two grades of perforates.
Further, it is each classification fuel nozzle the second end at be provided with axially through the first screwed hole,
Each corresponding spout governor motion of fuel nozzle that is classified includes:
At cover-shaped body, the second end for being covered in corresponding classification fuel nozzle, wherein, be provided with the top of the cover-shaped body with First screwed hole it is corresponding and axially through circular hole;
Second combustion gas spout, radially runs through the side-walls of the cover-shaped body, makes described by rotating the cover-shaped body Two combustion gas spouts are relative to be changed with two grades of position of opening, the flow sprayed with regulating gas from two grades of perforates, and
Fastener, sequentially through the circular hole and first screwed hole, institute is fixed on by the spout governor motion State at classification fuel nozzle.
Further, the camber line that is formed on its tube wall circumference of two grades of perforates of each classification fuel nozzle and the circumference and The angle of the intersection point formation of the classification fuel nozzle center line is 60 degree.
Further, the multiple be classified arbitrary neighborhood in fuel nozzle two are classified fuel nozzles along the distributor It is in axially interlaced arrangement.
Classification combustion gas low NO of the present utility model includes distributor body, multiple classification fuel nozzles and burner Cylinder.The multiple classification fuel nozzle and the multiple fuel distribution cavity are corresponded and docking connection, by combustion gas equably Classification sprays and burnt, and combustion gas is sufficiently mixed burning with combustion air, effectively reduces NOx discharge, meet existing environmental protection It is required that.
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
It is described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter more of the present utility model specific real 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 that the embodiment of the utility model one is classified combustion gas low NO;
Fig. 2 is the dimensional structure diagram that the embodiment of the utility model one is classified combustion gas low NO;
Fig. 3 is the structural representation of distributor body in the embodiment of the utility model one classification combustion gas low NO;
Fig. 4 is the structural representation of classification fuel nozzle in the utility model Fig. 2;
Fig. 5 is the embodiment of the utility model one classification structural representation of the fuel nozzle with spout structure;
Fig. 6 is the front view of the flow guiding disc of the embodiment of the utility model one classification combustion gas low NO;
Fig. 7 is the right view of the flow guiding disc of the classification combustion gas low NO of the utility model one embodiment.
Embodiment
Fig. 1 is the front view that the embodiment of the utility model one is classified combustion gas low NO.Fig. 2 is that the utility model one is real Apply the dimensional structure diagram that example is classified combustion gas low NO.Fig. 3 is the low nitrogen combustion of the embodiment of the utility model one classification combustion gas The structural representation of distributor body in burner.
As shown in figure 1, referring also to Fig. 2 and Fig. 3, the present embodiment is illustrated based on Fig. 1, and the utility model is provided One kind classification combustion gas low NO, including:It is classified gas distributor and provides flow path to the combustion gas and air.Described point Level gas distributor includes distributor body 1, multiple classification fuel nozzles 2 and burner cylinder 3.Distributor body is with folder The cylinder 11 of layer, is that interlayer 14, inside are hollow bulb 15 outside it, combustion gas is assembled by the interlayer 14, at the interlayer 14 It is formed with the top of fuel gas inlet 13, the interlayer and is formed with spaced apart multiple fuel distribution cavities 12, the hollow bulb 15 Pass through air.The multiple classification fuel nozzle 2 and the multiple fuel distribution cavity 12 correspond and dock connection.Every a pair The fuel distribution cavity 12 answered and the corresponding fuel gas flow path of the classification formation of fuel nozzle 2, the combustion gas is in corresponding combustion gas Flow and sprayed in corresponding classification fuel nozzle 2 punishment level in flow path.Burner cylinder 3 is formed at the classification combustion gas Dispenser exterior, for being that combustion gas and air provide mixing and burning place.
Classification combustion gas low NO of the present utility model includes distributor body 1, multiple classification fuel nozzles 2 and burning Device cylinder 3.The multiple classification fuel nozzle 2 and the multiple fuel distribution cavity 12 correspond and dock connection, by combustion gas Equably classification sprays and burnt, and combustion gas is sufficiently mixed burning with combustion air, effectively reduces NOx discharge, meets existing Row environmental requirement.
Fig. 4 is the structural representation of classification fuel nozzle in the utility model Fig. 2.As shown in figure 4, each classification fuel spray Pipe 2 has relative first end 210 and the second end 211, and the first end 210 is openend and divided with corresponding fuel Docked (referring to Fig. 2) with chamber 12.The second end 211 is close second end in blind end, the classification fuel nozzle 2 The one-level perforate 202 and two grades of perforates 201 of radial direction insertion are provided with the tube wall in portion 211.Second end of each classification fuel nozzle 2 At 211 be provided with axially through the first screwed hole 203.The one-level perforate 202 and two grades of perforates 201 are fired along the classification Expect that the tube wall of jet pipe 2 is positioned opposite, the relatively close the second end 211 of two grades of perforates 201, the one-level perforate 202 One-level combustion gas is sprayed, two grades of perforates 201 spray second gas burning.Two grades of perforates 201 of each classification fuel nozzle 2 are length Hole, the camber line that two grades of perforates 201 of each classification fuel nozzle 2 are formed on its tube wall circumference and the circumference and the classification fuel The angle of the intersection point formation of jet pipe center line is 60 degree.
Classification fuel nozzle 2 of the present utility model is being provided with radial direction insertion at the tube wall of the second end 211 One-level perforate 202 and two grades of perforates 201, so set and make it that fuel is divided into two-stage by classification fuel nozzle 2, can make combustion gas and sky Gas is well mixed in combustion, the stable flame of primary fuel, anti-anti-avulsion fire, fire extinguishing, while the secondary fuel that ignites.One-level is fired Material is in oxygen-enriched lower burning, and center is direct current cold air, forms the hollow flame of low temperature, so as to reduce the production of nitrogen oxides when burning It is raw.
Two classification fuel nozzles 2 of arbitrary neighborhood are along described point in multiple classification fuel nozzles 2 described in the utility model Orchestration is in axially interlaced arrangement, so that the spout interlaced arrangement on the adjacent classification fuel nozzle 2.The classification fuel spray Pipe 2 with classification combustion gas distribution cavity 12 during being mutually butted, it is the multiple classification fuel nozzle interlaced arrangement distance With flexible modulation combustion gas can be made to form a uniform and stable gas belt, reached and the air inside the classification fuel nozzle 2 Reach the purpose efficiently mixed.
Fig. 5 is the embodiment of the utility model one classification structural representation of the fuel nozzle with spout structure.As shown in figure 5, The first combustion gas spout 21 is correspondingly provided with the one-level perforate 202 of each classification fuel nozzle 2, the first combustion gas spout 21 is in loudspeaker Shape and the tube wall for protruding from the classification fuel nozzle 2.The first combustion gas spout 21 at each classification fuel nozzle is along institute State classification fuel nozzle 2 axis direction α is fixedly mounted on the one-level tapping 202 at a predetermined angle.Alternatively, it is described pre- Angle [alpha] is determined for 10 ° -60 °.First combustion gas spout 21 is to obtain optimal combustion gas spouting velocity in horn-like purpose, it is to avoid Combustion gas produces vortex, so as to reduce the generation of nitrogen oxides.As a preferred embodiment, the first combustion gas spout 21 can be can Activity is simultaneously removably arranged on the tube wall of classification fuel nozzle 2, and according to the needs that burn each time, the first combustion can be adjusted at any time The angle of gas blowout mouthful 21.First combustion gas spout 21 is to obtain optimal combustion gas spouting velocity in horn-like purpose, it is to avoid combustion Gas produces vortex, so as to reduce the generation of nitrogen oxides.
Further, corresponding spout governor motion 4 is additionally provided with two grades of perforates 201 of each classification fuel nozzle 2, led to The position of the relatively described two grades of perforates 201 of the spout governor motion 4 is overregulated, with regulating gas from two grades of perforates 201 The flow of ejection.Each corresponding spout governor motion 4 of fuel nozzle that is classified includes cover-shaped body, the second combustion gas spout 42 and fastening Part.Cover-shaped body is covered at the second end 211 of corresponding classification fuel nozzle 2, wherein, it is provided with and institute at the top of the cover-shaped body State the first screwed hole 203 it is corresponding and axially through circular hole 41.The radial direction of second combustion gas spout 42 runs through the cover-shaped body Side-walls, make the second combustion gas spout 42 relative and two grades of perforates 201 change in location by rotating the cover-shaped body, with The flow that regulating gas sprays from two grades of perforates 201.Fastener sequentially passes through the circular hole 41 and first screwed hole 203, the spout governor motion 4 is fixed at the classification fuel nozzle 2.
The quantity of one-level perforate 202 of the present utility model is multiple, and multiple one-level perforates 202 are equal along same axis direction Even arranged for interval.Correspondingly, the quantity of the first combustion gas spout 21 is multiple, and multiple first combustion gas spouts 21 are in parallel cloth Put.Combustion gas is formed a uniform and stable gas belt, mixed with the Efficient air of conveying.
Classification combustion gas low NO of the present utility model also includes flow guiding disc 5 (referring to Fig. 2), and flow guiding disc 5 is located at described The exit of inlet air flow path, makes the air formation Rotating with Uniform air-flow by the flow guiding disc 5.Flow guiding disc 5 is arranged on sky The exit in flow of air path, that is, classification fuel nozzle 2 is arranged at the second end 211.Fig. 6 is the utility model The front view of the flow guiding disc of one embodiment classification combustion gas low NO.Fig. 7 is the classification combustion of the utility model one embodiment The right view of the flow guiding disc of gas low NO.Understand as shown, flow guiding disc 5 includes shell body 56, multiple guide vanes 51, envelope Closing plate 52 and support frame 54.Shell body 56 is used for air circulation, and the shell body 56 is the hollow cylinder of both ends open, including enters Mouth end 511 and the port of export 512, the air are flowed out after being entered by entrance point 511 by the port of export 512.Multiple guide vanes 51 are in Certain angle is arranged in the Internal and external cycle of shell body 56 and is connected, for making the air shape by the multiple guide vane 51 Into swirling eddy.Closed plate 52 blocks the inlet port in the cavity, the closed plate by with the inner ring of shell body 56 Connection, the closed plate 52 is provided with eddy flow gap 57 with shell body inner ring.The one end of support frame 54 is fixed with the shell body 56, The other end is fixedly connected with the classification fuel nozzle 2, for the shell body 56 to be fixedly mounted on into the classification fuel spray At pipe 2.Support frame 54 links together with shell body 56, detachably connects with classification fuel nozzle 2 at the other end of support frame 54 Connect, for the flow guiding disc 5 to be fixedly mounted on into the classification fuel nozzle 2.Formed after air is by flow guiding disc 5 uniform Swirling eddy is mixed with the multiply combustion gas thread that secondary fuel spout 42 radially sprays, and enhances air and combustion gas mixing, is shortened Residence time of the flue gas in high-temperature region, advantageously reduce flame temperature.
In order to which to the gas ignition in the classification combustion gas low NO, ignitor 7 is also set up in this burner The igniter fuel pipe 8 of fuel is provided with for being lighted a fire to the ignitor 7, ignitor 7 is located at the igniter fuel pipe 8 Side (referring to Fig. 2).One end of the igniter fuel pipe 8 is connected with gas source, the other end of the igniter fuel pipe 8 The steady combustion disk 6 for being provided with multiple holes is provided with portion, the ignitor 7 lights steady combustion Pan6Chu combustion gas using arcing mode, real The function of now lighting a fire, ignitor 7 of the present utility model is that Single lead is lighted a fire and the ignitor 7 is kept with steady combustion disk 6 Certain distance with realize arcing light a fire.
So far, although those skilled in the art will appreciate that herein it is detailed have shown and described it is of the present utility model many Individual exemplary embodiment, still, still can be public according to the utility model in the case where not departing from the utility model spirit and scope The content opened directly determines or derived many other variations or modifications for meeting the utility model principle.Therefore, this practicality is new The scope of type is understood that and regarded as to cover other all these variations or modifications.

Claims (10)

1. one kind classification combustion gas low NO, including:Gas distributor is classified, flow path is provided to combustion gas and air, its It is characterised by, the classification gas distributor includes:
Distributor body, it, with cylinder with dissection, is that interlayer, inside are hollow bulb outside it, combustion gas is poly- by the interlayer to be It is formed with collection, the interlayer at the top of fuel gas inlet, the interlayer and is formed with spaced apart multiple fuel distribution cavities;
Multiple classification fuel nozzles, the multiple classification fuel nozzle and the multiple fuel distribution cavity are corresponded and in succession Connect, each corresponding fuel distribution cavity and the corresponding fuel gas flow path of classification fuel nozzle formation, the combustion gas is in correspondence Fuel gas flow path in flowing and it is corresponding classification fuel nozzle punishment level spray;
Burner cylinder, is formed at outside the classification gas distributor, is that combustion gas and air provide mixing and burning place.
2. classification combustion gas low NO according to claim 1, it is characterised in that
Each classification fuel nozzle has a relative first end and the second end, the first end be openend and with it is corresponding The docking of fuel distribution cavity, the second end is blind end, close to the pipe of the second end in the classification fuel nozzle It is provided with the one-level perforate and two grades of perforates of radial direction insertion at wall, the one-level perforate and two grades of perforates are along the classification fuel The tube wall of jet pipe is positioned opposite, the relatively close the second end of two grades of perforates, and the one-level perforate sprays one-level combustion gas, Two grades of perforates spray second gas burning.
3. classification combustion gas low NO according to claim 2, it is characterised in that the first of the classification fuel nozzle End by fastener nest in the outlet side of the fuel distribution cavity, by adjusting the classification fuel nozzle and the fuel Cooperation distance between distribution cavity, so that the relative position of the adjustment classification relatively described fuel distribution cavity of fuel nozzle.
4. the classification combustion gas low NO according to Claims 2 or 3, it is characterised in that each classification fuel nozzle One-level tapping is correspondingly provided with the first combustion gas spout, and the first combustion gas spout is in horn-like and protrude from the classification fuel The tube wall of jet pipe.
5. classification combustion gas low NO according to claim 4, it is characterised in that the at each classification fuel nozzle α is fixedly mounted on the one-level tapping, institute to the axis direction of classification fuel nozzle described in one gas injection opening's edge at a predetermined angle Predetermined angle is stated for 10 ° -60 °.
6. classification combustion gas low NO according to claim 4, it is characterised in that the one-level the number of openings is many Individual, multiple one-level perforates are arranged along same axis direction uniform intervals;
Correspondingly, the quantity of the first combustion gas spout is multiple, and multiple first combustion gas spouts are in parallel arrangement.
7. the classification combustion gas low NO according to claim 2 or 5, it is characterised in that
Two grades of perforates of each classification fuel nozzle are elongated hole,
Two grades of tappings of each classification fuel nozzle are additionally provided with corresponding spout governor motion, are adjusted by adjusting the spout The position of the relatively described two grades of perforates of mechanism, the flow sprayed with regulating gas from two grades of perforates.
8. classification combustion gas low NO according to claim 7, it is characterised in that
It is each classification fuel nozzle the second end at be provided with axially through the first screwed hole,
Each corresponding spout governor motion of fuel nozzle that is classified includes:
At cover-shaped body, the second end for being covered in corresponding classification fuel nozzle, wherein, be provided with the top of the cover-shaped body with it is described First screwed hole it is corresponding and axially through circular hole;
Second combustion gas spout, radially runs through the side-walls of the cover-shaped body, makes second combustion by rotating the cover-shaped body Gas blowout mouthful is relative to be changed with two grades of position of opening, the flow sprayed with regulating gas from two grades of perforates, and
Fastener, sequentially through the circular hole and first screwed hole, described point is fixed on by the spout governor motion At level fuel nozzle.
9. classification combustion gas low NO according to claim 8, it is characterised in that
The camber line that two grades of perforates of each classification fuel nozzle are formed on its tube wall circumference sprays with the circumference and the classification fuel The angle of the intersection point formation of tube hub line is 60 degree.
10. classification combustion gas low NO according to claim 1, it is characterised in that
Two classification fuel nozzles of arbitrary neighborhood are along the distributor axis in staggeredly cloth in the multiple classification fuel nozzle Put.
CN201621284443.9U 2016-11-28 2016-11-28 One kind classification combustion gas low NO Expired - Fee Related CN206320745U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106524152A (en) * 2016-11-28 2017-03-22 北京水木星源环保科技有限公司 Graded gas low-nitrogen burner
CN106524153A (en) * 2016-11-28 2017-03-22 北京水木星源环保科技有限公司 Grading fuel gas low-nitrogen burner
CN108397772A (en) * 2018-05-07 2018-08-14 上海全颉环境设备有限公司 A kind of combustion head
CN108826289A (en) * 2018-08-29 2018-11-16 上海诺特飞博燃烧设备有限公司 Gas gun device and its burner and boiler

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106524152A (en) * 2016-11-28 2017-03-22 北京水木星源环保科技有限公司 Graded gas low-nitrogen burner
CN106524153A (en) * 2016-11-28 2017-03-22 北京水木星源环保科技有限公司 Grading fuel gas low-nitrogen burner
CN108397772A (en) * 2018-05-07 2018-08-14 上海全颉环境设备有限公司 A kind of combustion head
CN108397772B (en) * 2018-05-07 2024-05-14 上海全颉环境设备有限公司 Combustion head
CN108826289A (en) * 2018-08-29 2018-11-16 上海诺特飞博燃烧设备有限公司 Gas gun device and its burner and boiler

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Granted publication date: 20170711

Termination date: 20191128