CN111536515A - Four-stage air supply gas low-nitrogen burner - Google Patents
Four-stage air supply gas low-nitrogen burner Download PDFInfo
- Publication number
- CN111536515A CN111536515A CN202010401499.2A CN202010401499A CN111536515A CN 111536515 A CN111536515 A CN 111536515A CN 202010401499 A CN202010401499 A CN 202010401499A CN 111536515 A CN111536515 A CN 111536515A
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- China
- Prior art keywords
- air supply
- air
- burner
- hole
- gas
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- 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.)
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Links
- 239000007789 gas Substances 0.000 title claims abstract description 59
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 14
- 239000007921 spray Substances 0.000 claims description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 24
- 239000000203 mixture Substances 0.000 abstract description 12
- 238000002485 combustion reaction Methods 0.000 abstract description 11
- 239000000779 smoke Substances 0.000 abstract description 2
- 239000002737 fuel gas Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/70—Baffles or like flow-disturbing devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention provides a four-stage air supply gas low-nitrogen burner, which comprises an air inlet pipe, a gas inner pipe assembly, a burner block assembly and an air supply assembly, wherein the burner block assembly and the air supply assembly are arranged, a fourth air supply through hole is arranged in a burner block and matched with the original three-stage air supply through hole for supplying air, the burner adopts four-stage air supply to increase the air input of the burner, reduce the flame temperature of the burner and reduce the nitrogen oxide generated by combustion, so that the smoke emission meets the emission standard, a sleeve is provided with a first air supply through hole, a second air supply through hole and a third air supply through hole, and distributed air supply through holes are adopted to ensure the air supply requirement of a high-power burner, reduce the noise generated by a high-power burner and avoid noise pollution to the surrounding environment, and when the air and gas mixture is sprayed out of the burner, the shunting holes play a role in shunting the air and gas mixture, the mixture is uniformly distributed in the combustor, the full combustion of the fuel gas is ensured, and the combustion efficiency of the fuel gas is improved.
Description
Technical Field
The invention belongs to the technical field of air supply gas burners, and particularly relates to a four-stage air supply gas low-nitrogen burner.
Background
Along with the country to the combustion products emission control, the nitrogen oxide content control that the nozzle burning produced is in the within range of requiring, and present nozzle adopts second grade air feed, tertiary air feed nozzle more, and nozzle flame temperature is higher, and the nitrogen oxide that the burning produced is not conform to emission standard, and the urgent need is developed a level four air feed gas low-nitrogen nozzle to solve above-mentioned problem, and be convenient for marketing and application.
The existing burner mostly adopts a secondary air supply burner and a tertiary air supply burner, the flame temperature of the burner is higher, nitrogen oxides generated by combustion do not accord with emission standards, and the high-power burner generally has the phenomenon of high noise and causes the problem of noise pollution to the surrounding environment.
Therefore, the invention of the four-stage air supply gas low-nitrogen burner is very necessary.
Disclosure of Invention
In order to solve the technical problems, the invention provides a four-stage air supply gas low-nitrogen burner, which aims to solve the problems that the conventional burner mostly adopts a two-stage air supply burner and a three-stage air supply burner, the flame temperature of the burner is high, nitrogen oxides generated by combustion do not meet the emission standard, and a high-power burner generally has the phenomenon of high noise and causes noise pollution to the surrounding environment. A four-stage air supply gas low-nitrogen burner comprises an air inlet pipe, a gas inner pipe assembly, a burner block assembly and an air supply assembly, wherein the air inlet pipe is fixed at one end of the burner block assembly through a bolt; the air supply assembly is fixed in the middle of one side, close to the air inlet pipe, of the inner part of the burner block assembly through bolts; the gas inner tube subassembly passes through the bolt fastening and advances the inside intermediate position of pipe in the air, and the one end of gas inner tube subassembly runs through to the outside that the air entered the pipe, and the other end of this gas inner tube subassembly is located the inside of air feed subassembly.
The gas inner pipe assembly comprises an inner pipe, a spray head and a gas outlet, the inner pipe is fixed in the middle of the inside of the air inlet pipe through a bolt, one end of the inner pipe penetrates through the outside of the air inlet pipe, and the other end of the inner pipe is positioned in the air supply assembly; the spray head is fixed on the outer side of the tail end of the inner pipe through a bolt and is positioned in the air supply assembly; the gas outlet adopts a plurality ofly, and the gas outlet is evenly seted up on the shower nozzle.
The burner block assembly comprises a burner block, a mounting hole, a splitter plate, a fourth air supply through hole and a splitter hole, wherein the mounting hole is formed in the middle of the inside of the burner block, and two ends of the mounting hole penetrate through to two ends of the burner block; the flow distribution plate is fixed at one end of the mounting hole far away from the air inlet pipe through a bolt; the number of the shunting holes is multiple, and the shunting holes are uniformly formed in the shunting plate; the fourth air supply through holes are multiple and are uniformly arranged in the burner block.
The size of the splitter plate is matched with that of the mounting hole; two ends of the fourth air supply through hole penetrate through two ends of the burner block, and the fourth air supply through hole is positioned on the outer side of the mounting hole; the shunting holes are cylindrical, and the depth of the shunting holes is equal to the thickness of the shunting plate.
The air supply assembly comprises an air supply cylinder, a sleeve, a through groove, a first air supply through hole, a second air supply through hole and a third air supply through hole, the air supply cylinder is fixed at one side, close to the air inlet pipe, in the mounting hole through a bolt, and the size of the air supply cylinder is matched with that of the mounting hole; the sleeve is fixed on one side, close to the air inlet pipe, in the air supply cylinder through bolts, and the diameter of the sleeve is smaller than that of the air supply cylinder; the through groove is formed in the middle of one side, close to the air inlet pipe, of the sleeve, and the size of the through groove is matched with that of the inner pipe; the first air supply through holes are uniformly formed in one side, close to the air inlet pipe, of the sleeve, and are positioned on the outer side of the through groove; the number of the second air supply through holes is multiple, and the second air supply through holes are uniformly formed in the outer side of the sleeve; the third air supply through holes are multiple and are evenly arranged at the connecting position of the air supply cylinder and the sleeve.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the arrangement of the burner block assembly, the fourth air supply through hole is arranged in the burner block and matched with the original three-level air supply through hole for air supply, four-level air supply is adopted for the burner, the air input of the burner is increased, the flame temperature of the burner is reduced, the nitrogen oxide generated by combustion is reduced, and the smoke emission meets the emission standard.
2. According to the arrangement of the air supply assembly, the sleeve is provided with the first air supply through hole, the second air supply through hole and the third air supply through hole, and the distributed air supply through holes are adopted, so that the air supply requirement of the high-power burner is ensured, the noise generated by the high-power burner is reduced, and the noise pollution to the surrounding environment is avoided.
3. According to the arrangement of the flow distribution plate and the flow distribution holes, when the air and gas mixture is sprayed out of the burner, the flow distribution holes have a flow distribution effect on the air and gas mixture, so that the mixture is uniformly distributed in the burner, the gas is ensured to be fully combusted, and the combustion efficiency of the gas is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the gas inner pipe assembly of the present invention.
FIG. 3 is a schematic view of the construction of the burner block assembly of the present invention.
Fig. 4 is a schematic view of the structure of the diverter plate and the diverter holes of the present invention.
Fig. 5 is a schematic structural view of the air supply assembly of the present invention.
In the figure:
1-air inlet pipe, 2-gas inner pipe assembly, 21-inner pipe, 22-nozzle, 23-gas outlet, 3-burner block assembly, 31-burner block, 32-mounting hole, 33-splitter plate, 34-fourth air supply through hole, 35-splitter hole, 4-air supply assembly, 41-air supply pipe, 42-sleeve, 43-through groove, 44-first air supply through hole, 45-second air supply through hole and 46-third air supply through hole.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example (b):
as shown in figures 1 to 5
The invention provides a four-stage air supply gas low-nitrogen burner, which comprises an air inlet pipe 1, a gas inner pipe component 2, a burner block component 3 and an air supply component 4, wherein gas is conveyed from an inner pipe 21 to a nozzle 22, and is conveyed into an air supply cylinder 41 through a gas outlet 23, so that the mixing of air and gas is convenient to carry out, a sleeve 42 is provided with a first air supply through hole 44, a second air supply through hole 45 and a third air supply through hole 46, distributed air supply through holes are adopted, the air supply requirement of a high-power burner is ensured, the noise generated by the high-power burner is reduced, the noise pollution to the surrounding environment is avoided, a fourth air supply through hole 34 is arranged inside a burner block 31 and is matched with the original three-stage air supply through holes for air supply, the air supply of the burner is adopted, the air input of the burner is increased, the flame temperature of the burner is reduced, the nitrogen oxide generated by combustion is reduced, and, when air and gas mixture spout from the nozzle, reposition of redundant personnel hole 35 plays the effect of reposition of redundant personnel to air and gas mixture, makes the mixture evenly distributed in the combustor, guarantees the abundant burning of gas, improves the combustion efficiency of gas.
The gas inner pipe assembly 2 comprises an inner pipe 21, a nozzle 22 and a gas outlet 23, wherein gas is conveyed from the inner pipe 21 to the nozzle 22, and is conveyed into the gas supply cylinder 41 through the gas outlet 23, so that the mixing of air and gas is facilitated.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (5)
1. The utility model provides a low nitrogen nozzle of level four air feed gas which characterized in that: the burner block assembly comprises an air inlet pipe (1), a gas inner pipe assembly (2), a burner block assembly (3) and an air supply assembly (4), wherein the air inlet pipe (1) is fixed at one end of the burner block assembly (3) through a bolt; the air supply assembly (4) is fixed in the middle of one side, close to the air inlet pipe (1), of the inner part of the burner block assembly (3) through bolts; the gas inner tube subassembly (2) is fixed in the middle position of the air inlet tube (1) through a bolt, one end of the gas inner tube subassembly (2) penetrates through the outer side of the air inlet tube (1), and the other end of the gas inner tube subassembly (2) is located inside the air supply subassembly (4).
2. The four-stage air-supply gas low-nitrogen burner of claim 1, characterized in that: the gas inner pipe assembly (2) comprises an inner pipe (21), a spray head (22) and a gas outlet (23), the inner pipe (21) is fixed in the middle of the inside of the air inlet pipe (1) through bolts, one end of the inner pipe (21) penetrates through the outside of the air inlet pipe (1), and the other end of the inner pipe (21) is located inside the air supply assembly (4); the spray head (22) is fixed on the outer side of the tail end of the inner pipe (21) through a bolt, and the spray head (22) is positioned in the air supply assembly (4); the gas outlets (23) are multiple, and the gas outlets (23) are uniformly arranged on the spray head (22).
3. The four-stage air-supply gas low-nitrogen burner of claim 1, characterized in that: the burner block assembly (3) comprises a burner block (31), a mounting hole (32), a flow distribution plate (33), a fourth air supply through hole (34) and a flow distribution hole (35), wherein the mounting hole (32) is formed in the middle of the inner part of the burner block (31), and two ends of the mounting hole (32) penetrate through two ends of the burner block (31); the flow distribution plate (33) is fixed at one end of the mounting hole (32) far away from the air inlet pipe (1) through a bolt; a plurality of shunting holes (35) are adopted, and the shunting holes (35) are uniformly formed in the shunting plate (33); the number of the fourth air supply through holes (34) is multiple, and the fourth air supply through holes (34) are uniformly formed in the burner block (31).
4. The four-stage air-supply gas low-nitrogen burner of claim 3, characterized in that: the size of the flow distribution plate (33) is matched with that of the mounting hole (32); two ends of the fourth air supply through hole (34) penetrate through two ends of the burner block (31), and the fourth air supply through hole (34) is positioned on the outer side of the mounting hole (32); the shunting holes (35) are cylindrical, and the depth of the shunting holes (35) is equal to the thickness of the shunting plate (33).
5. The four-stage air-supply gas low-nitrogen burner of claim 1, characterized in that: the air supply assembly (4) comprises an air supply cylinder (41), a sleeve (42), a through groove (43), a first air supply through hole (44), a second air supply through hole (45) and a third air supply through hole (46), the air supply cylinder (41) is fixed on one side, close to the air inlet pipe (1), in the mounting hole (32) through bolts, and the size of the air supply cylinder (41) is matched with that of the mounting hole (32); the sleeve (42) is fixed on one side, close to the air inlet pipe (1), in the air supply cylinder (41) through bolts, and the diameter of the sleeve (42) is smaller than that of the air supply cylinder (41); the through groove (43) is formed in the middle of one side, close to the air inlet pipe (1), of the sleeve (42), and the size of the through groove (43) is matched with that of the inner pipe (21); the number of the first air supply through holes (44) is multiple, the first air supply through holes (44) are uniformly formed in one side, close to the air inlet pipe (1), of the sleeve (42), and the first air supply through holes (44) are located on the outer side of the through groove (43); the number of the second air supply through holes (45) is multiple, and the second air supply through holes (45) are uniformly formed in the outer side of the sleeve (42); the third air supply through holes (46) are multiple, and the third air supply through holes (46) are uniformly formed in the connecting position of the air supply cylinder (41) and the sleeve (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010401499.2A CN111536515A (en) | 2020-05-13 | 2020-05-13 | Four-stage air supply gas low-nitrogen burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010401499.2A CN111536515A (en) | 2020-05-13 | 2020-05-13 | Four-stage air supply gas low-nitrogen burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111536515A true CN111536515A (en) | 2020-08-14 |
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ID=71968729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010401499.2A Pending CN111536515A (en) | 2020-05-13 | 2020-05-13 | Four-stage air supply gas low-nitrogen burner |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2379705Y (en) * | 1999-06-04 | 2000-05-24 | 重庆钢铁设计研究院 | Low nitrogen oxides and flame adjustable burner nozzle |
| US20040018462A1 (en) * | 2002-03-16 | 2004-01-29 | George Stephens | Apparatus for optimizing burner performance |
| CN101936529A (en) * | 2010-09-29 | 2011-01-05 | 中国石油化工股份有限公司 | Sidewall gas burner capable of reducing emission of nitrogen oxides |
| CN102128453A (en) * | 2011-01-28 | 2011-07-20 | 岳阳科德科技有限责任公司 | Pre-combustion burner |
| CN202092129U (en) * | 2011-05-20 | 2011-12-28 | 中冶华天工程技术有限公司 | Gas burner |
| CN202328252U (en) * | 2011-11-20 | 2012-07-11 | 中国石油化工股份有限公司 | Low-NOx side wall gas combustor using preheating combustion-supporting air |
| CN107435925A (en) * | 2017-09-20 | 2017-12-05 | 安徽皓沣环保科技有限公司 | A kind of multistage combustion energy-conserving and environment-protective burner |
| CN208282100U (en) * | 2018-05-23 | 2018-12-25 | 西安五砂机械设备有限公司 | A kind of ceramic firing high combustion rate burner |
| CN109611844A (en) * | 2018-12-18 | 2019-04-12 | 东北大学 | A kind of fractional combustion natural gas combustion nozzle and its application method |
| CN209415454U (en) * | 2018-12-26 | 2019-09-20 | 振石集团东方特钢有限公司 | A kind of burner structure reducing nitrogen oxide emission |
| CN210118743U (en) * | 2019-04-15 | 2020-02-28 | 武汉汇翔热工技术有限公司 | Burner based on natural gas non-oxidation combustion |
| CN212298979U (en) * | 2020-05-13 | 2021-01-05 | 济南威光节能科技有限公司 | Four-stage air supply gas low-nitrogen burner |
-
2020
- 2020-05-13 CN CN202010401499.2A patent/CN111536515A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2379705Y (en) * | 1999-06-04 | 2000-05-24 | 重庆钢铁设计研究院 | Low nitrogen oxides and flame adjustable burner nozzle |
| US20040018462A1 (en) * | 2002-03-16 | 2004-01-29 | George Stephens | Apparatus for optimizing burner performance |
| CN101936529A (en) * | 2010-09-29 | 2011-01-05 | 中国石油化工股份有限公司 | Sidewall gas burner capable of reducing emission of nitrogen oxides |
| CN102128453A (en) * | 2011-01-28 | 2011-07-20 | 岳阳科德科技有限责任公司 | Pre-combustion burner |
| CN202092129U (en) * | 2011-05-20 | 2011-12-28 | 中冶华天工程技术有限公司 | Gas burner |
| CN202328252U (en) * | 2011-11-20 | 2012-07-11 | 中国石油化工股份有限公司 | Low-NOx side wall gas combustor using preheating combustion-supporting air |
| CN107435925A (en) * | 2017-09-20 | 2017-12-05 | 安徽皓沣环保科技有限公司 | A kind of multistage combustion energy-conserving and environment-protective burner |
| CN208282100U (en) * | 2018-05-23 | 2018-12-25 | 西安五砂机械设备有限公司 | A kind of ceramic firing high combustion rate burner |
| CN109611844A (en) * | 2018-12-18 | 2019-04-12 | 东北大学 | A kind of fractional combustion natural gas combustion nozzle and its application method |
| CN209415454U (en) * | 2018-12-26 | 2019-09-20 | 振石集团东方特钢有限公司 | A kind of burner structure reducing nitrogen oxide emission |
| CN210118743U (en) * | 2019-04-15 | 2020-02-28 | 武汉汇翔热工技术有限公司 | Burner based on natural gas non-oxidation combustion |
| CN212298979U (en) * | 2020-05-13 | 2021-01-05 | 济南威光节能科技有限公司 | Four-stage air supply gas low-nitrogen burner |
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