CN220870867U - Transversely-installed vertical-burning premixing combustion head - Google Patents
Transversely-installed vertical-burning premixing combustion head Download PDFInfo
- Publication number
- CN220870867U CN220870867U CN202322661097.8U CN202322661097U CN220870867U CN 220870867 U CN220870867 U CN 220870867U CN 202322661097 U CN202322661097 U CN 202322661097U CN 220870867 U CN220870867 U CN 220870867U
- Authority
- CN
- China
- Prior art keywords
- nozzles
- lateral
- premixing
- oblique
- plates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 30
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 229910002091 carbon monoxide Inorganic materials 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 239000002737 fuel gas Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Abstract
The utility model relates to the field of combustors, in particular to a transverse vertical combustion premixing combustion head. Comprises a premixing guide cylinder, two groups of lateral nozzles and two groups of oblique nozzles; the utility model relates to a premixing guide cylinder, which comprises a bottom plate, side plates and inclined plates, wherein two groups of lateral nozzles are respectively and vertically arranged on the two side plates, two groups of oblique nozzles are respectively and vertically arranged on the two inclined plates, the middle part of each lateral nozzle is provided with a lateral cavity communicated with a premixing cavity, the upper part of the peripheral wall of each lateral nozzle is provided with a plurality of notches which extend downwards from top to bottom and are communicated with the outside, each oblique nozzle is provided with a plurality of arc-shaped gaps which are coaxially arranged and are distributed at intervals along the radial direction, and each arc-shaped gap penetrates through the top surface of each oblique nozzle downwards to the bottom surface.
Description
Technical Field
The utility model relates to the field of combustors, in particular to a transverse vertical combustion premixing combustion head.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
In the related technology, along with the increasingly prominent environmental problems, the establishment of relevant gas fuel combustion appliance standards at home and abroad and the implementation of nitrogen oxide control measures by government environmental protection departments, more and more low-nitrogen combustion technologies are also applied to the technical field of combustion, and the technical field of combustion at home and abroad is recognized that a combustor with the NOX content of combustion products lower than 30mg/m < 3 > is called an ultralow-nitrogen combustor.
At present, a part of vertical heating furnaces with the heat load below 1MW is matched with a simple part of premixed gas burners, and the other part of vertical heating furnaces with the simple part of premixed gas burners is matched with a forced air type full-premixed burner, wherein the simple part of premixed gas burners is of an injection type structure due to the structural size of the heating furnaces, primary air is not supplied uniformly, flames are longer, the flow rate of flue gas is high, the residence time in the furnaces is short, the amount of NOX generated is more than 100mg/m < 3 >, the conventional part of vertical heating furnaces with the heat load below 1MW is mainly of a flat plate type and a cylindrical type at home and abroad, the surface of the conventional full-premixed gas burners is mainly of a metal fiber material or a porous ceramic plate type material, and the continuous sheet type structure is generally adopted, so that the structure has several defects: firstly, the flames are tightly connected in the combustion process, a large-area high-temperature area exists in the combustion process, and secondly, almost no smoke gas in the combustion area is circulated to participate in combustion to reduce the temperature of the flames, and the two points are mainly caused by relatively high content of NOX in the exhaust.
Disclosure of utility model
The utility model aims at: the transverse vertical combustion premixing combustion head can fully mix and burn fuel gas and air through reasonable arrangement of a nozzle structure, so that the generation of nitrogen oxidation and carbon monoxide can be reduced.
The utility model is realized by the following technical scheme: a transversely-mounted vertical-combustion premixing combustion head, which is characterized in that: comprises a premixing guide cylinder, two groups of lateral nozzles and two groups of oblique nozzles; the premixing guide cylinder comprises a bottom plate, two side plates and two inclined plates, wherein the side plates are respectively arranged on the left side and the right side of the bottom plate and extend upwards vertically, one sides of the two inclined plates are respectively connected to the upper parts of the two side plates, the other sides of the two inclined plates are mutually connected, the upper ends of the two inclined plates incline towards the direction close to each other in the upward extending process and are closely connected together, one ends of the bottom plate, the side plates and the inclined plates are provided with end plates, so that a premixing chamber with one end open and one end closed and used for facilitating fuel mixing is formed in the premixing guide cylinder, and one end of the premixing guide cylinder with the opening is also provided with a flange head;
The two groups of lateral nozzles are respectively and vertically arranged on the two side plates, the number of each group of lateral nozzles is multiple and is arranged at intervals along the length direction of the side plates, the two groups of oblique nozzles are respectively and vertically arranged on the two inclined plates, the number of each group of oblique nozzles is multiple and is arranged at intervals along the length direction of the inclined plates, the lateral nozzles are cylindrical, the middle parts of the lateral nozzles are provided with lateral cavities communicated with the premixing chamber, the upper parts of the peripheral walls of the lateral nozzles are provided with a plurality of notches which extend downwards from top to bottom and are communicated with the outside, the notches are arranged at intervals along the axial direction of the lateral nozzles, and the width of the notches is 0.2-0.8mm;
The oblique nozzle is cylindrical, the oblique nozzle is provided with a plurality of arc-shaped slits which are coaxially arranged and are distributed at intervals along the radial direction, each arc-shaped slit penetrates through the top surface of the oblique nozzle downwards to the bottom surface, and the width of each arc-shaped slit is 1-3mm.
The transverse vertical combustion premixed combustion head provided by the utility model has the advantages that fuel and air enter the premixed guide cylinder to be mixed, the mixed fuel is sprayed out from the inclined nozzles and the lateral nozzles to realize the transverse vertical combustion effect, wherein two groups of lateral nozzles are provided with a plurality of vertical cuts to disperse and output fuel gas, the contact area of the fuel gas and the air can be increased, and the fuel gas and the air are fully mixed and combusted, so that the generation of carbon monoxide is reduced, and the redundant carbon monoxide is burnt, wherein the inclined nozzles are designed for a plurality of arc-shaped gaps, and the width of each inclined nozzle is 1-3mm to realize the reduction of the generation of nitrogen oxides.
Preferably, the number of each group of lateral nozzles and the number of each group of oblique nozzles are 4-16, and are made of 310S stainless steel, and the number of the incisions of the lateral nozzles is 20-60. The 310S stainless steel has good oxidation resistance and corrosion resistance, can continuously operate at high temperature, and has good high temperature resistance.
Preferably, a base is arranged at the bottom of the inclined nozzle, and the base is fixedly connected with the inclined plate through bolts.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model relates to a transverse vertical combustion premixed combustion head, wherein fuel and air enter a premixed guide cylinder for mixing, mixed fuel is sprayed out from an inclined nozzle and a lateral nozzle, and the transverse vertical combustion effect is realized, wherein two groups of lateral nozzles are provided with a plurality of vertical cuts, so that the generation of carbon monoxide can be reduced, and the excessive carbon monoxide can be burnt, the inclined nozzle is designed for a plurality of arc-shaped gaps, and the width of the inclined nozzle is 1-3mm, so that the generation of nitrogen oxides can be reduced.
Drawings
FIG. 1 is a schematic diagram of a specific embodiment of the present utility model;
FIG. 2 is an explosion schematic of an embodiment of the present utility model;
FIG. 3 is a second schematic representation of an explosion in accordance with an embodiment of the present utility model;
FIG. 4 is a schematic view of a side nozzle according to an embodiment of the present utility model;
FIG. 5 is a cross-sectional view of a lateral nozzle in an embodiment of the utility model;
FIG. 6 is a schematic view of a nozzle in an embodiment of the present utility model;
fig. 7 is a cross-sectional view of a nozzle in an embodiment of the present utility model.
Description of the reference numerals: 1. premixing the guide cylinder; 11. a bottom plate; 12. a side plate; 13. a sloping plate; 14. an end plate; 15. a premix chamber; 16. a flange head; 2. a lateral nozzle; 21. a lateral cavity; 22. a notch; 3. a slant nozzle; 31. an arc-shaped slit; 32. and (5) a base.
Detailed Description
The utility model is described in detail below with reference to the accompanying drawings:
The embodiment relates to a transverse vertical burning premixed combustion head, which is shown in figures 1-7 and comprises a premixed guide cylinder 1, two groups of lateral nozzles 2 and two groups of oblique nozzles 3; the premixing guide cylinder 1 comprises a bottom plate 11, two side plates 12 which are respectively arranged on the left side and the right side of the bottom plate 11 and vertically extend upwards, and two inclined plates 13, wherein one sides of the two inclined plates 13 are respectively connected to the upper parts of the two side plates 12, the other sides of the two inclined plates are mutually connected, the upper ends of the two inclined plates 13 incline towards the direction which is mutually close in the upward extending process and are closely connected together, one ends of the bottom plate 11, the side plates 12 and the inclined plates 13 are provided with end plates 14, so that a premixing chamber 15 with one open end and one closed end for facilitating fuel mixing is formed in the premixing guide cylinder 1, and one end of the premixing guide cylinder 1 with the opening is also provided with a flange head 16;
The two groups of lateral nozzles 2 are respectively and vertically arranged on the two side plates 12, the number of each group of lateral nozzles 2 is a plurality of the lateral nozzles and are arranged at intervals along the length direction of the side plates 12, the two groups of oblique nozzles 3 are respectively and vertically arranged on the two inclined plates 13, the number of each group of oblique nozzles 3 is a plurality of the oblique nozzles and are arranged at intervals along the length direction of the inclined plates 13, the lateral nozzles 2 are cylindrical, the middle part of the lateral nozzles 2 is provided with a lateral cavity 21 communicated with the premixing chamber 15, the upper part of the peripheral wall of the lateral nozzles 2 is provided with a plurality of notches 22 which extend downwards from top to bottom and are communicated with the outside, the notches 22 are arranged at intervals along the axial direction of the lateral nozzles 2, and the width of the notches 22 is 0.2-0.8mm;
The inclined nozzle 3 is cylindrical, the inclined nozzle 3 is provided with a plurality of arc-shaped slits 31 which are coaxially arranged and are distributed at intervals along the radial direction, each arc-shaped slit 31 penetrates downwards from the top surface to the bottom surface of the inclined nozzle 3, and the width of each arc-shaped slit 31 is 1-3mm. Wherein the arcuate slot 31 is not formed in a ring shape so that the different radial components can be joined together.
The fuel and air enter the premixing guide cylinder 1 for mixing, the mixed fuel is sprayed out from the inclined nozzle 3 and the lateral nozzles 2 to realize the effect of transverse vertical burning, two groups of lateral nozzles 2 are provided with a plurality of vertical cuts 22, the generation of carbon monoxide can be reduced, and the redundant carbon monoxide can be burnt, wherein the inclined nozzle 3 is designed for a plurality of arc-shaped gaps 31, and the width of the inclined nozzle is 1-3mm to realize the reduction of the generation of nitrogen oxides.
Preferably, the number of the lateral nozzles 2 and the inclined nozzles 3 of each group is 4-16, and the lateral nozzles 2 and the inclined nozzles 3 are made of 310S stainless steel, and the number of the notches 22 of the lateral nozzles 2 is 20-60. The 310S stainless steel has good oxidation resistance and corrosion resistance, can continuously operate at high temperature, and has good high temperature resistance.
Preferably, a base is provided at the bottom of the oblique nozzle 3, and the base is fastened to the sloping plate 13 by bolts.
While the utility model has been illustrated and described with respect to specific embodiments and alternatives thereof, it will be appreciated that various changes and modifications can be made therein without departing from the spirit of the utility model. It is, therefore, to be understood that the utility model is not to be in any way limited except by the appended claims and their equivalents.
Claims (3)
1. A transversely-mounted vertical-combustion premixing combustion head, which is characterized in that: comprises a premixing guide cylinder, two groups of lateral nozzles and two groups of oblique nozzles; the premixing guide cylinder comprises a bottom plate, two side plates and two inclined plates, wherein the side plates are respectively arranged on the left side and the right side of the bottom plate and extend upwards vertically, one sides of the two inclined plates are respectively connected to the upper parts of the two side plates, the other sides of the two inclined plates are mutually connected, the upper ends of the two inclined plates incline towards the direction close to each other in the upward extending process and are closely connected together, one ends of the bottom plate, the side plates and the inclined plates are provided with end plates, so that a premixing chamber with one end open and one end closed and used for facilitating fuel mixing is formed in the premixing guide cylinder, and one end of the premixing guide cylinder with the opening is also provided with a flange head;
The two groups of lateral nozzles are respectively and vertically arranged on the two side plates, the number of each group of lateral nozzles is multiple and is arranged at intervals along the length direction of the side plates, the two groups of oblique nozzles are respectively and vertically arranged on the two inclined plates, the number of each group of oblique nozzles is multiple and is arranged at intervals along the length direction of the inclined plates, the lateral nozzles are cylindrical, the middle parts of the lateral nozzles are provided with lateral cavities communicated with the premixing chamber, the upper parts of the peripheral walls of the lateral nozzles are provided with a plurality of notches which extend downwards from top to bottom and are communicated with the outside, the notches are arranged at intervals along the axial direction of the lateral nozzles, and the width of the notches is 0.2-0.8mm;
The oblique nozzle is cylindrical, the oblique nozzle is provided with a plurality of arc-shaped slits which are coaxially arranged and are distributed at intervals along the radial direction, each arc-shaped slit penetrates through the top surface of the oblique nozzle downwards to the bottom surface, and the width of each arc-shaped slit is 1-3mm.
2. A transversely mounted vertical combustion premix burner according to claim 1, wherein: the number of each group of lateral nozzles and the number of the oblique nozzles are 4-16, the lateral nozzles are made of 310S stainless steel, and the number of the incisions of the lateral nozzles is 20-60.
3. A transversely mounted vertical combustion premix burner according to claim 1, wherein: the bottom of the oblique nozzle is provided with a base, and the base is fixedly connected with the inclined plate through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322661097.8U CN220870867U (en) | 2023-09-28 | 2023-09-28 | Transversely-installed vertical-burning premixing combustion head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322661097.8U CN220870867U (en) | 2023-09-28 | 2023-09-28 | Transversely-installed vertical-burning premixing combustion head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220870867U true CN220870867U (en) | 2024-04-30 |
Family
ID=90814998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322661097.8U Active CN220870867U (en) | 2023-09-28 | 2023-09-28 | Transversely-installed vertical-burning premixing combustion head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220870867U (en) |
-
2023
- 2023-09-28 CN CN202322661097.8U patent/CN220870867U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5826429A (en) | Catalytic combustor with lean direct injection of gas fuel for low emissions combustion and methods of operation | |
| KR970009485B1 (en) | LOW NOx GAS-BURNER | |
| CN109695877B (en) | Two-stage combustion type fire grate burner | |
| JP2013053814A (en) | Gas turbine combustor | |
| CN109899786B (en) | Flameless low-nitrogen combustor and flameless low-nitrogen combustion method | |
| CN107461742B (en) | Graded flameless low-nitrogen combustion head | |
| CA2693624A1 (en) | Reactor employing high-temperature air combustion technology | |
| CN213577479U (en) | Combustion part and combustor | |
| CN220870867U (en) | Transversely-installed vertical-burning premixing combustion head | |
| US5899680A (en) | Low nitrogen oxides generating combustion method and apparatus | |
| JPH0443220A (en) | Combustion device for gas turbine | |
| KR100420002B1 (en) | premixed metal fiber burner | |
| CN2878940Y (en) | Gas fuel catalytic burner | |
| CN109442402B (en) | Water-cooling premixed combustion method and device | |
| CN220728237U (en) | Combustion head and low-nitrogen combustor | |
| CN2499707Y (en) | Low pollution gas burner | |
| CN219045746U (en) | Low-nitrogen burner | |
| CN218442276U (en) | Low-nitrogen burner injected by staged combustion gas | |
| CN212273986U (en) | Gas burner for heating furnace and heating furnace thereof | |
| CN217329789U (en) | Special combustion head of ultra-low nitrogen combustor | |
| CN221375662U (en) | Low-nitrogen combustor for smoke internal circulation flat chemical industry | |
| CN210532368U (en) | Flameless combustion machine | |
| WO2022096022A1 (en) | Combustion part and combustor | |
| KR20010065375A (en) | Three step combustion type burner of an oxide rare combustion type | |
| CN114234187A (en) | High-speed low-nitrogen combustor for heating furnace and combustion method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |