CN209470215U - Burner and central flame flame boiler containing it - Google Patents
Burner and central flame flame boiler containing it Download PDFInfo
- Publication number
- CN209470215U CN209470215U CN201920037236.0U CN201920037236U CN209470215U CN 209470215 U CN209470215 U CN 209470215U CN 201920037236 U CN201920037236 U CN 201920037236U CN 209470215 U CN209470215 U CN 209470215U
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- China
- Prior art keywords
- burner
- exhaust gas
- gas nozzle
- jet port
- inner liner
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model provides a kind of burner and the central flame flame boiler containing it, burner includes exhaust gas nozzle, the end of exhaust gas nozzle has the first jet port, first jet port is arranged along the length direction of exhaust gas nozzle, the end of exhaust gas nozzle also has the second jet port, burner provides the air outlet slit of air in being surrounded by the second jet port for exhaust gas nozzle, second jet port is arranged along the length direction perpendicular to exhaust gas nozzle, and towards air outlet slit, the air in combustion gas and air outlet slit for spraying the length direction perpendicular to exhaust gas nozzle mixes combining combustion.The burner by using layering, step-by-step arrangement and supplies the mode of fuel in jet port, avoid the situation that local burnup is excessive, and uniform fuel and air mixture is formed before reaching burning point, enable burner fractional combustion and local oxygen-enriched combusting, to help reduce the temperature of flame, thermal NO is reducedXGeneration, overall thermal is high-efficient.
Description
Technical field
The utility model relates to a kind of burner and containing its central flame flame boiler.
Background technique
For the air pollution situation occurred more than the whole nation often, primary pollution source NOX, NOXWith the water knot in air
Conjunction is eventually converted to nitric acid and nitrate, and nitric acid is one of origin cause of formation of acid rain；It under certain condition can with other pollutants
Photochemical pollution is generated, is all existed to body direct and potentially hazardous.Raising due to national policy to emission request
With the extensive application of various gas fired-boilers, environmental protection policy is also put into effect in various regions successively, it is desirable that boiler meets low NOXExhaust emissions, in
The heart boiler that strile-backs is no exception.
For central flame flame boiler, since its burner ends is enclosed construction, metallic fiber premix combustion is usually used
Burner, but oxygen content is higher in metallic fiber premix burner tail gas, causes exhaust smoke level to increase, the thermal efficiency is caused to reduce, energy
Source loss；Air filter needs often cleaning simultaneously, increases workload, and air filter there is also blocking, be easy to happen
The safety accidents such as tempering, detonation.
Utility model content
The technical problems to be solved in the utility model be in order to overcome the burner of the prior art tail gas in oxygen content compared with
Height causes exhaust smoke level to increase, and the thermal efficiency reduces, the defect of energy loss, provides a kind of burner and the central flame flame containing it
Boiler.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of burner comprising exhaust gas nozzle, the end of the exhaust gas nozzle have the first jet port, first spray
Loophole is arranged along the length direction of the exhaust gas nozzle, and the end of the exhaust gas nozzle also has the second jet port, the burning
Device provides the air outlet slit of air, second jet port edge in being surrounded by second jet port for the exhaust gas nozzle
Perpendicular to the length direction setting of the exhaust gas nozzle, and towards the air outlet slit, make the length side perpendicular to exhaust gas nozzle
Air into the combustion gas and air outlet slit of ejection mixes combining combustion.
The burner by using layering, step-by-step arrangement and supplies the mode of fuel in jet port, avoids local burnup's mistake
More situations, and uniform fuel and air mixture is formed before reaching burning point, enable burner fractional combustion and part
Oxygen-enriched combusting reduces thermal NO to help reduce the temperature of flameXGeneration, and overall thermal is high-efficient.
Preferably, the burner further include:
Blower and burner inner liner, the blower are set to one end of the burner inner liner, for providing into the burner inner liner
Air；
Eddy flow tray, the eddy flow tray is set to the other end of the burner inner liner, and the eddy flow tray and the burner inner liner are same
Heart setting；
The exhaust gas nozzle is set between the burner inner liner and the eddy flow tray, the inner wall of the burner inner liner and the rotation
The air outlet slit is formed between flow table, to provide air to the second jet port.
By making the air of blower offer using the gap formed between the outer ledge of eddy flow tray and the inner wall of burner inner liner
In addition to it can be blown out from the whirlwind sheet of eddy flow tray, it can also be blown out from the outside of eddy flow tray, to avoid air concentrations,
And lead to fuel concentrated combustion.
Preferably, the edge of the burner inner liner bends inwards, the bending part of the burner inner liner has notch, the combustion gas
Jet pipe is set in the notch, and the air outlet slit is formed between the notch and the outside wall surface of the exhaust gas nozzle.
These air outlet slits are away from the central burner region of burner, thus effectively disperses combustion region, avoid burning
Concentrations are in the center of burner.
Preferably, the shape of the notch is C-shaped, to adapt to the shape of the outside wall surface of exhaust gas nozzle, and can be into
One step keeps the spacing between exhaust gas nozzle and notch equal everywhere, to enable air to equably blow out from the air outlet slit.
Preferably, the end of the exhaust gas nozzle has multiple second jet ports.
Preferably, the end of the exhaust gas nozzle also has third jet port, the third jet port is along perpendicular to described
The length direction of exhaust gas nozzle is arranged, and towards the eddy flow tray.
By the way that the third jet port is arranged, make exhaust gas nozzle that can also spray combustion gas towards the center of burner, with
Further realize layering, step-by-step arrangement and the function of supplying fuel.
Preferably, the centre of the eddy flow tray has the hollow-out parts passed through for air, the whirlwind sheet of the eddy flow tray is surround
It is arranged in the hollow-out parts.
Change airflow direction by eddy flow tray, enable air to be dispersed at the fire end of burner, avoids concentrating and fire
Incomplete combustion caused by burning happens.
Preferably, the burner further includes bypass ignitron and ignition electrode, the bypass ignitron and the ignition electrode
It is all set in the hollow-out parts, to realize rapid-ignition using air-flow generated by blower, through hollow-out parts.
Preferably, the burner includes multiple exhaust gas nozzles, the exhaust gas nozzle is with the axis of the burner inner liner
For center circumference uniform distribution.
By each jet port of every exhaust gas nozzle to multi-direction injection combustion gas, burner is made to realize the mesh of homogenous combustion
's.
A kind of central flame flame boiler comprising burner as described above.
The burner in a manner of being evenly supplied fuel, keeps fuel abundant with air layering, step-by-step arrangement jet port
Mixing, homogenous combustion improve the whole thermal efficiency；NO can also be effectively reducedXGeneration, mitigate pollution to environment.
The positive effect of the utility model is:
In the burner and central flame flame boiler containing it, the jet port of burner by using layering, step-by-step arrangement simultaneously
The mode for supplying fuel, avoids the situation that local burnup is excessive, and uniform fuel and air mixing is formed before reaching burning point
Object enables burner fractional combustion and local oxygen-enriched combusting to reduce thermal NO to help reduce the temperature of flameX's
It generates, and overall thermal is high-efficient.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the burner of an embodiment of the utility model.
Fig. 2 is the side view schematic diagram of internal structure of the burner of an embodiment of the utility model.
Fig. 3 is the positive structure diagram of the burner of an embodiment of the utility model.
Description of symbols:
Exhaust gas nozzle 1, length direction A
First jet port 11
Second jet port 12
Third jet port 13
Flue gas recirculation regulating valve 2
Air control valve 3
Blower 4
Burner inner liner 5, bending part 51, notch 52
Eddy flow tray 6, whirlwind sheet 61, hollow-out parts 62
Bypass ignitron 7
Ignition electrode 8
Air outlet slit B
Specific embodiment
A preferred embodiment is named, and completely illustrates the utility model in conjunction with attached drawing to become apparent from.
As depicted in figs. 1 and 2, the utility model provides a kind of burner comprising has six roots of sensation exhaust gas nozzle 1, Mei Yigen
The end of exhaust gas nozzle 1 has the first jet port 11 and the second jet port 12.Wherein, the first jet port 11 is along exhaust gas nozzle 1
Length direction A setting, with for directly spraying combustion gas to the front of burner, and the second jet port 12 is then along perpendicular to this
The length direction A of exhaust gas nozzle 1 is arranged, and is additionally provided in the position that the burner is located at 1 surrounding of exhaust gas nozzle to the second jet port
12 provide the air outlet slit B of air.Second jet port 12 is also arranged towards the direction of air outlet slit B, so that perpendicular to combustion
The air in combustion gas and air outlet slit B that the length direction A of gas blowout pipe 1 sprays mixes combining combustion.
The burner by using layering, step-by-step arrangement and supplies the mode of fuel in jet port, avoids local burnup's mistake
More situations, and uniform fuel and air mixture is formed before reaching burning point, enable burner fractional combustion and part
Oxygen-enriched combusting reduces thermal NO to help reduce the temperature of flameXGeneration, and overall thermal is high-efficient.
As shown in Fig. 2, the burner further includes having flue gas recirculation regulating valve 2, air control valve 3, blower 4, burner inner liner 5
With eddy flow tray 6, which is arranged in the end of flame cylinder, with for conveying air into burner inner liner 5, flue gas recirculation is adjusted
Valve 2 and air control valve 3 are sequentially connected to blower 4, and with parameters such as the air outputs that controls blower 4, and eddy flow tray 6 is then arranged at this
The other end of burner inner liner 5, and be to be arranged concentrically between eddy flow tray 6 and burner inner liner 5.And exhaust gas nozzle 1 setting burner inner liner 5 with
Between eddy flow tray 6, to form above-mentioned air outlet slit B between the inner wall of burner inner liner 5 and eddy flow tray 6, and to the second jet port 12
Air is provided.
By the gap formed between the outer ledge using eddy flow tray 6 and the inner wall of burner inner liner 5, provide blower 4
Air can also be blown out, to avoid air in addition to it can blow out from the whirlwind sheet 61 of eddy flow tray 6 from the outside of eddy flow tray 6
Concentrations, and lead to fuel concentrated combustion.
The six roots of sensation exhaust gas nozzle 1 of the burner is using the axis of the burner inner liner 5 as center circumference uniform distribution, to pass through every combustion gas
Each jet port of jet pipe 1 makes burner realize the purpose of homogenous combustion to multi-direction injection combustion gas.Certainly, in the present embodiment
The radical of exhaust gas nozzle 1 is only for example, the quantity of practical exhaust gas nozzle 1 is not limited thereto with distribution.
In addition, as shown in figures 1 and 3, the edge of burner inner liner 5 also bends inwards, and the bending part 51 of the burner inner liner 5 has
Notch 52, all exhaust gas nozzles 1 are arranged in corresponding notch 52, and between notch 52 and the outside wall surface of exhaust gas nozzle 1
Also air outlet slit B (for details, reference can be made to the local magnification regions in Fig. 3) is formed, to provide air to exhaust gas nozzle 1.The air goes out
Mouth B is away from the central burner region of burner, thus effectively disperses combustion region, excessively concentrates on burner to avoid burning
Center.Wherein, the shape of the notch 52 is C-shaped, to adapt to the shape of the outside wall surface of exhaust gas nozzle 1, and can
Make the spacing between exhaust gas nozzle 1 and notch 52 equal everywhere, further to enable air to equably from air outlet slit B
Blowout.
In the present embodiment, (for details, reference can be made to Fig. 1 for second jet port 12 there are two being respectively provided on each exhaust gas nozzle 1
With the local magnification region in Fig. 3), the two second jet ports 12 correspond respectively to 1 two sides of exhaust gas nozzle by 5 He of burner inner liner
The air outlet slit B that eddy flow tray 6 surrounds, is supplied with dispersion fuel.Certainly, in other embodiments, can also be set on exhaust gas nozzle 1
More second jet ports 12 are set, with the supply of further dispersion fuel.
As shown in Figure 1, the end of every exhaust gas nozzle 1 also has third jet port 13, the third jet port 13 is along vertical
Directly it is arranged in the length direction A of exhaust gas nozzle 1, and towards the direction of eddy flow tray 6.By the way that the third jet port 13 is arranged, make to fire
Gas blowout pipe 1 can also spray combustion gas towards the center of burner, to further realize layering, step-by-step arrangement and supply fuel
Function.Wherein, the air that the combustion gas sprayed from third jet port 13 should be blown out in the whirlwind sheet 61 with eddy flow tray 6 is mixed and is fired
It burns, so that air-flow is whirled up, forms stable flame, ensure that the stability of flame, avoid the de- fire of burner.
Preferably, also there are the hollow-out parts 62 passed through for air in the middle position of eddy flow tray 6, and the whirlwind of eddy flow tray 6
Piece 61 is then surrounded on the hollow-out parts 62 setting.By the way that whirlwind sheet 61 and hollow-out parts 62 are respectively set on eddy flow tray 6, make to pass through rotation
The air of flow table 6 can be divided into two kinds of air-flows: first is that directly by hollow-out parts 62 along its length A blowout air-flow, two
It is the air-flow for stopping through whirlwind sheet 61 and being whirled up.Change airflow direction by eddy flow tray 6, enables air in burner
Dispersed at fire end, is happened to avoid incomplete combustion caused by concentrated combustion.In addition, the burner further includes having side
Waypoint fire tube 7 and ignition electrode 8, the bypass ignitron 7 and ignition electrode 8 are arranged in hollow-out parts 62, are generated with utilizing by blower 4
, air-flow through hollow-out parts 62 realize rapid-ignition.
The burner makes fuel in a manner of being distributed injection by the way that the jet port of different directions is arranged on exhaust gas nozzle 1
It being capable of full combustion.By taking the present embodiment as an example, specific effect caused by each jet port is as follows:
1. the first jet port 11 directly sprays combustion along the axis direction (i.e. the length direction A of exhaust gas nozzle 1) of burner
Gas stablizes flame to form middle part；
2. the second jet port 12 is along axis direction (i.e. the length direction A of exhaust gas nozzle 1) Xiang Xuanliu perpendicular to burner
Air outlet slit B between disk 6 and burner inner liner 5 sprays combustion gas, and premixing is achieved the effect that in a manner of by quickly mixing, is avoided
There is the excessive region of local burnup, can significantly reduce Quick-type NOXGeneration.Wherein, due to the bending part of burner inner liner 5
51 effectively reduce the outlet diameter of burner inner liner 5, therefore flow velocity of the air at this also can be improved.
3. third jet port 13 is along axis direction (i.e. the length direction A of exhaust gas nozzle 1) Xiang Xuanfeng perpendicular to burner
Piece 61 sprays combustion gas, to be mixed and burned the flame to be formed with the rotary air blown out from whirlwind sheet 61, ensure that flame
Stability, avoid the de- fire of burner.
Wherein, it closes in this present embodiment for the blow-off direction of the air of burning, can refer to the side that arrow in Fig. 2 is indicated
To.
The utility model also provides a kind of central flame flame boiler comprising has burner as described above, the burner is logical
Layering, step-by-step arrangement jet port are crossed in a manner of being evenly supplied fuel, mixes well with air fuel, homogenous combustion, effectively
Reduce NOXGeneration, reduce pollution to environment.Meanwhile flow velocity of the combustion gas at air outlet slit B is accelerated, therefore at this
Region only has combustion gas edge to have combustion-supporting air, effectively prevents being tempered.
And by improving the air velocity positioned at burner centre position in the center of cyclone disk setting hollow-out parts 62,
So that the combustion gas mixed with air is formed the long flame in rear end in center, increase the surface area of flame, reduces flame peak value
Temperature, meanwhile, higher flow velocity may make combustion flame to reach central flame flame boiler furnace end, keep combustion chamber heated equal
It is even, improve boiler thermal efficiency.
Wherein, the specific structure and principle of other component of the central flame flame boiler in addition to burner, such as combustion chamber etc.
The prior art is belonged to, therefore details are not described herein.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and the protection scope of the utility model is defined by the appended claims.Those skilled in the art
Under the premise of without departing substantially from the principles of the present invention and essence, many changes and modifications may be made,
But these change and modification each fall within the protection scope of the utility model.
Claims (10)
1. a kind of burner comprising exhaust gas nozzle, the end of the exhaust gas nozzle have the first jet port, first injection
The length direction of exhaust gas nozzle described in opening's edge is arranged, which is characterized in that and the end of the exhaust gas nozzle also has the second jet port,
The burner the exhaust gas nozzle be surrounded by second jet port provide air air outlet slit, described second
Jet port is arranged along the length direction perpendicular to the exhaust gas nozzle, and towards the air outlet slit.
2. burner as described in claim 1, which is characterized in that the burner further include:
Blower and burner inner liner, the blower are set to one end of the burner inner liner, for providing air into the burner inner liner；
Eddy flow tray, the eddy flow tray are set to the other end of the burner inner liner, and the eddy flow tray with the burner inner liner is concentric sets
It sets；
The exhaust gas nozzle is set between the burner inner liner and the eddy flow tray, the inner wall of the burner inner liner and the eddy flow tray
Between form the air outlet slit.
3. burner as claimed in claim 2, which is characterized in that the edge of the burner inner liner bends inwards, the burner inner liner
Bending part there is notch, the exhaust gas nozzle is set in the notch, the outer wall of the notch and the exhaust gas nozzle
The air outlet slit is formed between face.
4. burner as claimed in claim 3, which is characterized in that the shape of the notch is C-shaped.
5. burner as claimed in claim 3, which is characterized in that the end of the exhaust gas nozzle has multiple second sprays
Loophole.
6. burner as claimed in claim 2, which is characterized in that the end of the exhaust gas nozzle also has third jet port,
The third jet port is arranged along the length direction perpendicular to the exhaust gas nozzle, and towards the eddy flow tray.
7. burner as claimed in claim 2, which is characterized in that the centre of the eddy flow tray has the hollow out passed through for air
Portion, the whirlwind sheet of the eddy flow tray are surrounded on the hollow-out parts setting.
8. burner as claimed in claim 7, which is characterized in that the burner further includes bypassing ignitron and ignition electrode,
The bypass ignitron and the ignition electrode are all set in the hollow-out parts.
9. such as the described in any item burners of claim 2-8, which is characterized in that the burner includes multiple gas injections
Pipe, the exhaust gas nozzle is using the axis of the burner inner liner as center circumference uniform distribution.
10. a kind of central flame flame boiler, which is characterized in that it includes such as the described in any item burners of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920037236.0U CN209470215U (en) | 2019-01-09 | 2019-01-09 | Burner and central flame flame boiler containing it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920037236.0U CN209470215U (en) | 2019-01-09 | 2019-01-09 | Burner and central flame flame boiler containing it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209470215U true CN209470215U (en) | 2019-10-08 |
Family
ID=68091621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920037236.0U Active CN209470215U (en) | 2019-01-09 | 2019-01-09 | Burner and central flame flame boiler containing it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209470215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668149A (en) * | 2019-01-09 | 2019-04-23 | 上海迎韦热能设备有限公司 | Burner and central flame flame boiler containing it |
-
2019
- 2019-01-09 CN CN201920037236.0U patent/CN209470215U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668149A (en) * | 2019-01-09 | 2019-04-23 | 上海迎韦热能设备有限公司 | Burner and central flame flame boiler containing it |
| CN109668149B (en) * | 2019-01-09 | 2024-02-23 | 上海迎韦热能设备有限公司 | Combustor and central backfire boiler comprising same |
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