CN219693255U - Low-nitrogen burner of heating furnace - Google Patents
Low-nitrogen burner of heating furnace Download PDFInfo
- Publication number
- CN219693255U CN219693255U CN202321252491.XU CN202321252491U CN219693255U CN 219693255 U CN219693255 U CN 219693255U CN 202321252491 U CN202321252491 U CN 202321252491U CN 219693255 U CN219693255 U CN 219693255U
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- Prior art keywords
- furnace body
- gas
- furnace
- gun
- open lamp
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 title claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 37
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000446 fuel Substances 0.000 claims abstract description 21
- 239000011449 brick Substances 0.000 claims abstract description 19
- 239000003345 natural gas Substances 0.000 claims abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 10
- 235000009781 Myrtillocactus geometrizans Nutrition 0.000 abstract description 4
- 240000009125 Myrtillocactus geometrizans Species 0.000 abstract description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 230000009970 fire resistant effect Effects 0.000 description 5
- 238000004321 preservation Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Pre-Mixing And Non-Premixing Gas Burner (AREA)
Abstract
The utility model discloses a low-nitrogen burner of a heating furnace, and belongs to the technical field of burners. The technical proposal is as follows: the furnace comprises a furnace body, a normally-open lamp is arranged in the furnace body in a penetrating manner, a first refractory brick layer is arranged at a combustion position at the top of the normally-open lamp, the refractory brick layer is arranged at the periphery of the normally-open lamp, and a normally-open lamp fuel inlet is arranged at the bottom of the normally-open lamp; the furnace body is internally provided with a plurality of gas guns in a penetrating way, the gun heads of the gas guns extend out of the top of the furnace body, the gun heads of the gas guns are provided with holes, the bottoms of the gas guns are connected with a natural gas distributor through a fuel distributing pipe, one end, far away from the furnace body, of the natural gas distributor is connected with a natural gas pipeline, and the periphery of the gas gun at the top of the furnace body is provided with a second refractory brick layer; an air duct is arranged on one side wall of the furnace body, which is close to the bottom of the furnace body, and an air inlet is arranged on the air duct. The utility model adopts the gas guns uniformly distributed in the burner, so that the combustion distribution is more uniform, the flame is well formed, and the blue flame which does not float by the regular flame is more fuel-saving than the original one.
Description
Technical Field
The utility model belongs to the technical field of burners, and particularly relates to a low-nitrogen burner of a heating furnace.
Background
The burner is a device for ejecting and mixing fuel and air in a fixed manner. The burner is divided into industrial burner, civil burner and special burner according to the type and application field. The material is made of corrosion-resistant and high-temperature-resistant materials such as stainless steel or metallic titanium. The burner used on the heating furnace needs to ensure that the flame is round/flat flame under the normal working condition, and the flame is rigid and powerful and does not fly; the utility model discloses a burner for a heating furnace, which can meet the requirement of full-load production under the condition of natural ventilation, and Chinese patent No. 205002159U discloses a burner for a heating furnace, which comprises a furnace body and a spray gun arranged in the furnace body, wherein fuel is introduced into the spray gun, a tuyere communicated with the inside of the furnace body is arranged at the position, close to the bottom of the furnace body, a wind regulating butterfly valve driven to rotate by a servo driving device is arranged on the tuyere, an encoder is arranged between the wind regulating butterfly valve and the servo driving device, a check sensor is arranged at the position of the wind regulating butterfly valve on the tuyere, and the signal feedback end of the check sensor is connected with the signal receiving end of the servo driving device. Through adopting above-mentioned structure, utilize servo drive to adjust the aperture of adjusting the wind butterfly valve, utilize the encoder to realize rotation angle's count simultaneously to the aperture of strictly controlling the wind butterfly valve utilizes check sensor to adjust the aperture of wind butterfly valve whether accurate simultaneously. However, the burner adopts a fuel mode, so that the problems of insufficient combustion, high nitrogen oxides and certain environmental pollution are caused due to uneven air supply of the gun head.
Disclosure of Invention
The utility model aims to solve the technical problems that: the low-nitrogen burner for the heating furnace has the advantages that the defects of the prior art are overcome, the gas guns uniformly distributed in the burner are adopted, so that the combustion distribution is more uniform, the flame is well formed, and the blue flame which does not float due to regular flame is more fuel-saving than the original one.
The technical scheme of the utility model is as follows:
the low-nitrogen burner of the heating furnace comprises a furnace body, a normally-open lamp is arranged in the furnace body in a penetrating manner, a first refractory brick layer is arranged at a burning position at the top of the normally-open lamp, the refractory brick layer is arranged at the periphery of the normally-open lamp, and a normally-open lamp fuel inlet is arranged at the bottom of the normally-open lamp; the furnace body is internally provided with a plurality of gas guns in a penetrating way, the gun heads of the gas guns extend out of the top of the furnace body, the gun heads of the gas guns are provided with holes, the bottoms of the gas guns are connected with a natural gas distributor through a fuel distributing pipe, one end, far away from the furnace body, of the natural gas distributor is connected with a natural gas pipeline, and the periphery of the gas gun at the top of the furnace body is provided with a second refractory brick layer; an air duct is arranged on one side wall of the furnace body, which is close to the bottom of the furnace body, and an air inlet is arranged on the air duct.
Preferably, a compressed air channel communicated with the air channel is arranged at the position of the air channel on the furnace body, and compressed air is introduced into the compressed air channel.
Preferably, the inner wall of the furnace body is provided with a fireproof fiber cotton layer.
Preferably, the number of the gas guns is 8, and gun heads of the 8 gas guns are uniformly distributed on the outer side of the first refractory brick layer.
Preferably, a plurality of holes are formed in the gun head of the gas gun, and each hole comprises a straight hole formed in the center of the gun head and an inclined hole formed in the inclined surface of the gun head.
Preferably, 3 openings are arranged on the gun head of the gas gun, and the openings are respectively a straight opening (502), a 45-degree inclined opening and a 15-degree inclined opening.
Preferably, the inner cavity of the fuel inlet of the normally open lamp is provided with four pipelines.
Preferably, an inner cavity of the air duct is provided with an insulating layer.
Preferably, the wind energy-saving device further comprises a regulating valve and a controller which are arranged at the wind inlet, and the regulating valve is electrically connected with the controller.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the normally open lamp air inlet pipeline is changed into four paths, the air inlet is reduced, the problem that nitrogen oxides are formed due to insufficient combustion caused by large air inflow is effectively solved, meanwhile, the original spray gun is changed into 8 groups of gas guns uniformly distributed in the burner, and the inlet pipelines are uniformly distributed through the natural gas distributor, so that the combustion distribution is more uniform, the flame is well formed, and the regular flame does not emit a blue flame which is more fuel-saving than the original one; 2. the air channel on the furnace body is provided with a compressed air channel communicated with the air channel, and compressed air is introduced into the compressed air channel to prevent the condition that air cannot enter due to the damage of the regulating valve from affecting normal operation; 3. the arrangement of the first refractory brick layer, the second refractory brick layer and the refractory fiber layer can prolong the service life of the burner; 4. the heat-insulating layer in the air duct is arranged to facilitate heat-insulating treatment on the air duct, so that heat in the burner is prevented from diffusing outwards through the air duct; 5. the arrangement of the straight holes and the inclined holes on the gas gun can ensure more uniform combustion.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the gun head of the present utility model.
In the figure, 1, a furnace body; 2. a normally-open lamp; 3. a first refractory brick layer; 4. a normally open lamp fuel inlet; 5. a gas gun; 501. a gun head; 502. a straight hole; 503. inclined holes; 6. a fuel distribution pipe; 7. a natural gas distributor; 8. a second refractory brick layer; 9. an air duct; 10. an air inlet; 11. a compressed air passage; 12. a layer of fire resistant cellulosic cotton; 13. a heat preservation layer; 14. and (3) regulating the valve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1 and 2, the low-nitrogen burner of the heating furnace comprises a furnace body 1, wherein a fire-resistant fiber cotton layer 12 is arranged on the inner wall of the furnace body 1, a normally-open lamp 2 is arranged in the furnace body 1 penetrating through the furnace body 1, a fire-resistant brick layer 3 is arranged at the combustion position at the top of the normally-open lamp 2, the fire-resistant brick layer 3 is arranged on the periphery of the normally-open lamp 2, a normally-open lamp fuel inlet 4 is arranged at the bottom of the normally-open lamp 2, and four pipelines are arranged in the inner cavity of the normally-open lamp fuel inlet 4;
the furnace body 1 is internally and further internally provided with a plurality of gas guns 5 in a penetrating way, gun heads 501 of the gas guns 5 extend out of the top of the furnace body 1, the number of the gas guns 5 is 8, the gun heads 501 of the 8 gas guns 5 are uniformly distributed on the outer side of a fire-resistant brick layer I3, and 3 open holes are formed in the gun heads 501 of each gas gun 5 and are respectively a straight hole 502, a 45-degree inclined hole 503 and a 15-degree inclined hole 503; the bottom of the gas gun 5 is connected with a natural gas distributor 7 through a fuel distributing pipe 6, one end of the natural gas distributor 7, which is far away from the furnace body 1, is connected with a natural gas pipeline, and the periphery of the gas gun 5 at the top of the furnace body 1 is provided with a second refractory brick layer 8;
an air duct 9 is arranged on one side wall of the furnace body 1, which is close to the bottom of the furnace body 1, and an inner cavity of the air duct 9 is provided with a heat preservation layer 13; the air duct 9 is provided with an air inlet 10, and further comprises a regulating valve 14 and a controller which are arranged at the air inlet 10 of the air, wherein the regulating valve 14 is electrically connected with the controller.
When the burner is used, the normally open lamp fuel inlet 4, the natural gas distributor 7 inlet and the regulating valve 14 are opened, so that fuel enters the shell, the air quantity entering the furnace body 1 from the space of the regulating valve 14 is controlled simultaneously along with ignition of the fuel by the igniter, and when the pipelines of the normally open lamp fuel inlet 4 and the natural gas distributor 7 inlet fail, the pipelines of the normally open lamp fuel inlet 4 and the natural gas distributor 7 inlet can be overhauled respectively, so that normal operation can be realized.
The air inlet of the normally open lamp 2 is changed into four paths, the air inlet is reduced, the problem that nitrogen oxides are insufficiently formed due to insufficient combustion caused by large air inflow is effectively solved, meanwhile, the original spray gun is changed into 8 groups of gas guns 5 uniformly distributed in the burner, and the entering pipelines are uniformly distributed through the natural gas distributor 7, so that the combustion distribution is more uniform, the flame is well formed, and the blue flame with regular flame does not fly is more fuel-saving than the original one; the arrangement of the first refractory brick layer 3, the second refractory brick layer 8 and the refractory fiber layer can prolong the service life of the burner; the setting of heat preservation 13 in wind channel 9 is convenient to carry out heat preservation to wind channel 9 through the setting of heat preservation 13, prevents the inside heat of combustor and outwards diffuses through wind channel 9.
Example 2
On the basis of embodiment 1, a compressed air channel 11 communicated to the inside of the air channel 9 is arranged at the position of the air channel 9 on the furnace body 1, compressed air is introduced into the compressed air, and the compressed air is introduced into the compressed air to prevent the condition that air cannot enter due to the damage of the regulating valve 14 from influencing normal operation.
Although the present utility model has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present utility model is not limited thereto. Various equivalent modifications and substitutions for embodiments of the utility model may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these modifications and substitutions are intended to be within the scope of the utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a heating furnace low nitrogen combustor, includes furnace body (1), runs through furnace body (1) in furnace body (1) and is provided with normally open lamp (2), and normally open lamp (2) top burning position department is provided with firebrick layer one (3), and firebrick layer one (3) set up in the periphery of normally open lamp (2), chang Mingdeng (2) bottom is provided with normally open lamp fuel entry (4), its characterized in that: a plurality of gas guns (5) are further arranged in the furnace body (1) in a penetrating manner, gun heads (501) of the gas guns (5) extend out of the top of the furnace body (1), holes are formed in the gun heads (501) of the gas guns (5), the bottoms of the gas guns (5) are connected with a natural gas distributor (7) through fuel distribution pipes (6), one end, far away from the furnace body (1), of the natural gas distributor (7) is connected with a natural gas pipeline, and a second refractory brick layer (8) is arranged on the periphery of the gas gun (5) at the top of the furnace body (1);
an air duct (9) is arranged on one side wall of the furnace body (1) close to the bottom of the furnace body (1), and an air inlet (10) is arranged on the air duct (9).
2. The furnace low nitrogen burner of claim 1, wherein: the air flue (9) on the furnace body (1) is provided with a compressed air channel (11) communicated into the air flue (9), and compressed air is introduced into the compressed air.
3. The furnace low nitrogen burner of claim 1, wherein: the inner wall of the furnace body (1) is provided with a fireproof fiber cotton layer (12).
4. The furnace low nitrogen burner of claim 1, wherein: the number of the gas guns (5) is 8, and gun heads (501) of the 8 gas guns (5) are uniformly distributed on the outer side of the first refractory brick layer (3).
5. The furnace low nitrogen burner of claim 4, wherein: the gas gun is characterized in that a plurality of holes are formed in a gun head (501) of the gas gun (5), and each hole comprises a straight hole (502) formed in the center of the gun head (501) and an inclined hole (503) formed in the inclined surface of the gun head (501).
6. The furnace low nitrogen burner of claim 5, wherein: 3 holes are formed in a gun head (501) of the gas gun (5), and the holes are a straight hole (502), a 45-degree inclined hole (503) and a 15-degree inclined hole (503) respectively.
7. The furnace low nitrogen burner of claim 1, wherein: the inner cavity of the normally open lamp fuel inlet (4) is provided with four pipelines.
8. The furnace low nitrogen burner of claim 1, wherein: an inner cavity of the air duct (9) is provided with an insulating layer (13).
9. The furnace low nitrogen burner of claim 1, wherein: the air conditioner further comprises a regulating valve (14) and a controller, wherein the regulating valve (14) and the controller are arranged at the air inlet (10) of the air, and the regulating valve (14) is electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321252491.XU CN219693255U (en) | 2023-05-23 | 2023-05-23 | Low-nitrogen burner of heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321252491.XU CN219693255U (en) | 2023-05-23 | 2023-05-23 | Low-nitrogen burner of heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219693255U true CN219693255U (en) | 2023-09-15 |
Family
ID=87941478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321252491.XU Active CN219693255U (en) | 2023-05-23 | 2023-05-23 | Low-nitrogen burner of heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219693255U (en) |
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2023
- 2023-05-23 CN CN202321252491.XU patent/CN219693255U/en active Active
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