CN220541080U - Low-nitrogen combustor for propane staged combustion gas injection - Google Patents
Low-nitrogen combustor for propane staged combustion gas injection Download PDFInfo
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- CN220541080U CN220541080U CN202321739562.9U CN202321739562U CN220541080U CN 220541080 U CN220541080 U CN 220541080U CN 202321739562 U CN202321739562 U CN 202321739562U CN 220541080 U CN220541080 U CN 220541080U
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- gas
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- peripheral
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- 238000002347 injection Methods 0.000 title claims abstract description 106
- 239000007924 injection Substances 0.000 title claims abstract description 106
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 44
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 23
- 239000001294 propane Substances 0.000 title claims abstract description 22
- 239000000567 combustion gas Substances 0.000 title claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 111
- 239000000446 fuel Substances 0.000 claims abstract description 76
- 230000002093 peripheral effect Effects 0.000 claims abstract description 60
- 239000002737 fuel gas Substances 0.000 claims abstract description 25
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 14
- 230000008602 contraction Effects 0.000 claims abstract description 13
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003546 flue gas Substances 0.000 abstract description 6
- 239000006185 dispersion Substances 0.000 abstract description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 38
- 238000002485 combustion reaction Methods 0.000 description 34
- 238000013461 design Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000009826 distribution Methods 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical class [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Pre-Mixing And Non-Premixing Gas Burner (AREA)
Abstract
The utility model relates to the technical field of burners, and discloses a low-nitrogen burner for injecting propane staged combustion gas, which comprises an air channel barrel and a gas channel pipe coaxially arranged with the air channel barrel; the air channel cylinder is sleeved on the outer side of the fuel gas channel pipe; the tail end of the gas channel pipe is sequentially and coaxially provided with a gas contraction section and a gas straight section; the tail end of the air channel cylinder is sequentially and coaxially provided with a middle air contraction section, a middle air straightening section 14 and an air adjusting section; a plurality of peripheral gas fuel ejectors are uniformly distributed on the radial circumference of the periphery of the air adjusting section; the peripheral gas fuel injector tip is provided with radial dispersion holes; a plurality of gas peripheral injection pipes are uniformly distributed on the radial circumference of the gas channel pipe; the end part of the fuel gas channel pipe is provided with a radial fuel injection pipe, a radial fuel injection hole and an anti-backfire flame stabilizing disc. According to the utility model, through increasing the high-speed injection of the peripheral gas fuel, the downstream flue gas is mixed with the gas fuel, the flame temperature is reduced, and the generation of oxynitride is reduced.
Description
Technical Field
The utility model belongs to the technical field of burners, and particularly relates to a low-nitrogen burner for injecting propane staged combustion gas.
Background
The current social environment problems are increasingly prominent, and the international society is increasingly concerned about the influence and the consequences caused by environmental pollution. In China, the contradiction between energy supply and demand and environmental pollution is increasingly prominent, and acid rain, haze and the like of air pollution and bleed air continuously bring serious harm to social development and human health, so that the national requirements on environmental protection are increasingly strict, and the latest atmospheric emission standard reduces the emission of pollutant gases such as smoke dust concentration, NOx, CO and the like. Therefore, whether it is used as a strict requirement for emission in response to national policies or an environmental protection requirement for energy saving and emission caused by the use of a large amount of various gases, developing a burner with low NOx emissions will become a key factor for solving these contradictions. Therefore, the design of a low NOx gas burner structure is particularly important for organizing combustion and reducing pollutant emissions.
The burner combustion head is a key core component of the whole burner, and the component is used for mixing fuel gas and combustion air and organizing combustion, and releasing heat for practical needs. The structural form of the component determines the reliability and stability of the combustion process, as well as the speed and temperature distribution of the whole combustion area, which are key factors affecting the smoke emission.
Most of the existing burners use diffusion combustion. In order to ensure sufficient combustion, the burner generally adopts a design mode of better mixing of fuel and air, and the combustion in the mode has high flame temperature, large area of a high-temperature area and easy generation of a large amount of NOx. How to design a problem which needs to be solved by the research and development technicians at present.
Disclosure of Invention
The utility model aims to provide a low-nitrogen burner for injecting propane staged combustion gas, which applies a staged combustion technology and a premixed combustion technology to a forced air burner technology and aims to solve the problems of high nitrogen oxide emission, unstable combustion and the like of a propane gas burner of a common chemical boiler.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
the low-nitrogen burner comprises an air channel cylinder and a gas channel pipe coaxially arranged with the air channel cylinder, wherein the air channel cylinder is sleeved on the outer side of the gas channel pipe;
the tail end of the gas channel pipe is sequentially and coaxially provided with a gas contraction section and a gas straight section; the tail end of the air channel cylinder is sequentially and coaxially provided with a middle air contraction section, a middle air straightening section and an air adjusting section; the air adjusting section comprises a horn section, a straight section and an air closing-in section, wherein a plurality of peripheral gas fuel ejectors are uniformly distributed on the periphery and the radial circumference of the air adjusting section, and radial dispersing holes are formed in the end heads of the peripheral gas fuel ejectors; a plurality of gas peripheral injection pipes are uniformly distributed on the radial circumference of the gas channel pipe; the tail end of the fuel gas peripheral injection pipe is arranged in a peripheral gas fuel injector; the end part of the fuel gas channel pipe is provided with a radial fuel injection pipe, a radial fuel injection hole and an anti-backfire flame stabilizing disc.
Further, the peripheral gas fuel injector includes an injection port and an injection barrel; the two ends of the injection cylinder are opened; the injection port is in a reduced shape; one end of the injection port with smaller aperture is connected with the injection cylinder; the tail end of the fuel gas peripheral injection pipe is arranged in the injection port; the aperture of the injection cylinder is larger than the aperture of the gas peripheral injection pipe.
Further, the radial fuel injection pipe and the radial fuel injection hole are both arranged between the flashback prevention flame holding disk and the end part of the fuel gas channel pipe.
Further, air vent holes or air swirl vanes are uniformly distributed on the circumference of the surface of the backfire-proof flame stabilizing disc.
Further, the number of the blades of the air swirler is 6-12.
Further, the rotational flow angle of the air swirler vane is 20-60 degrees.
Further, the number of the radial fuel injection pipes is 4-10.
Further, the number of the gas peripheral injection pipes is 4-12, and the number of the peripheral gas fuel ejectors is consistent with the number of the gas peripheral injection pipes.
Further, the number of the radial fuel injection holes is 4 to 12.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The fuel and the air are graded for multiple times, so that the combustion is more sufficient, and the combustion efficiency is improved;
(2) The peripheral gas fuel is increased to be ejected at a high speed, so that the downstream flue gas is mixed with the gas fuel, the flame temperature is reduced, and the generation of nitrogen-oxygen compounds is reduced;
(3) The central radial jet type stable flame ensures the stability of the flame, thereby ensuring the reliable and stable operation of the burner, reducing the risk of backfire and improving the safety of the burner in the use process.
Drawings
The utility model can be further illustrated by means of non-limiting examples given in the accompanying drawings;
FIG. 1 is a cross-sectional view of a propane staged combustion gas injection low nitrogen burner of the present utility model;
FIG. 2 is a partial schematic view of a propane staged combustion gas injection low nitrogen burner of the present utility model;
FIG. 3 is a side view of a propane staged combustion gas injection low nitrogen burner of the present utility model utilizing an air vent;
FIG. 4 is a side view of a propane staged combustion gas injection low nitrogen combustor of the present utility model utilizing air swirl vanes;
FIG. 5 is a perspective view of a propane staged combustion gas injection low nitrogen burner of the present utility model.
The main reference numerals are as follows:
an air passage tube 1; a gas passage pipe 2; a gas peripheral injection pipe 3; a peripheral gas fuel injector 4; radial dispersion holes 5; an air constriction section 6; a backfire-proof flame stabilizing disc 7; a radial fuel injection pipe 8; an air vent 9; an air inlet 10; radial fuel injection holes 11; air swirl vanes 12; a gas constriction section 13; an intermediate air straight section 14.
Detailed Description
The present utility model will be described in detail below with reference to the drawings and the specific embodiments, wherein like or similar parts are designated by the same reference numerals throughout the drawings or the description, and implementations not shown or described in the drawings are in a form well known to those of ordinary skill in the art. In addition, directional terms such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", etc. in the embodiments are merely directions with reference to the drawings, and are not intended to limit the scope of the present utility model.
As shown in fig. 1-5, a low-nitrogen burner for injecting propane staged combustion gas comprises an air channel barrel 1 and a gas channel pipe 2 coaxially arranged with the air channel barrel, wherein the air channel barrel 1 is sleeved outside the gas channel pipe 2:
the tail end of the gas channel pipe 2 is sequentially and coaxially provided with a gas contraction section 13 and a gas straight section; specifically, the aperture of the gas channel pipe 2 is larger than the aperture of the gas straight section, the aperture of one end of the gas contraction section 13, which is close to the gas channel pipe 2, is consistent with the aperture of the gas channel pipe 2, the aperture of one end of the gas contraction section 13, which is close to the gas straight section, is consistent with the aperture of the gas straight section, and the aperture of the gas contraction section 13 is gradually reduced from the gas channel pipe 2 to the gas straight section; due to the design that the aperture of the gas channel pipe 2 is larger than that of the gas straight section and the gas shrinkage section 13 is gradually reduced, the gas is gradually accelerated when flowing in the pipeline. The acceleration effect can promote better mixing of the fuel gas and the air, and enhance the gas diffusion and mixing effect in the combustion process;
the tail end of the air channel barrel 1 is sequentially and coaxially provided with a middle air straight section 14 and an air adjusting section; the air-contracting section 6 is similar in shape and structure to the fuel gas contracting section 13 described above and will not be described again here. The air adjusting section comprises a horn section, a straight section and an air closing-in 10, wherein the aperture size of the straight section is between the middle air straight section 14 and the air channel barrel 1; one end of the straight section is connected with the contraction section, and the other end of the straight section is connected with the horn section; a plurality of peripheral gas fuel ejectors 4 are uniformly distributed on the radial circumference of the periphery of the air adjusting section, and a plurality of radial dispersion holes 5 are formed at the end head of each peripheral gas fuel ejector 4; a plurality of gas peripheral injection pipes 3 are uniformly distributed on the radial circumference of the gas channel pipe 2; the end of the gas peripheral injection pipe 3 is arranged in a peripheral gas fuel injector 4; the end part of the fuel gas channel pipe 2 is provided with a radial fuel injection pipe 8, a radial fuel injection hole 11 and an anti-backfire flame stabilizing disc 7.
Compared with the prior art, the burner effectively reduces the generation of nitrogen oxides through the special structural design of the gas channel pipe 2 and the air channel cylinder 1. It can significantly reduce environmental pollution compared with conventional burners. The optimized channel structure and the mixing design enable the fuel gas and the air to be mixed better, and the combustion efficiency is improved. This can reduce fuel consumption and reduce energy waste. In addition, by introducing the peripheral gas fuel injector 4 and the gas peripheral injection pipe 3, peripheral gas fuel is injected at a high speed, so that downstream flue gas reflux and gas fuel are mixed, the flame temperature is reduced, and the generation of oxynitride is reduced.
In some embodiments, the peripheral gas fuel injector 4 comprises an injection port and an injection barrel; the two ends of the injection cylinder are opened; the injection port is in a reduced shape; one end of the injection port with smaller aperture is connected with the injection cylinder; the tail end of the fuel gas peripheral injection pipe 3 is arranged in the injection port; the aperture of the injection cylinder is larger than the aperture of the gas peripheral injection pipe 3.
Through the design of the injection cylinder, the speed and the flow of the gas can be regulated, the peripheral gas fuel is ensured to enter the injection port at a proper speed, and the uniform mixing of the gas and the air is realized. The reduced design of the injection port increases the gas flow rate, thereby increasing the negative pressure effect near the injection port. This helps to create a stronger suction near the injection port, allowing better mixing of the gas and air. In addition, the tip of the gas peripheral injection pipe 3 is placed in the injection port, further promoting mixing and uniform distribution of the gas. This helps control the peak fuel combustion temperature during the combustion process, and lower peaks of combustion temperature help reduce the formation of nitrogen oxides (NOx), thereby reducing environmental pollution.
In some embodiments, the radial fuel injection tube 8 and the radial fuel injection holes 11 are both disposed between the flashback resistant flame holding disk 7 and the end of the gas channel tube 2. The radial fuel injection pipe 8 and the radial fuel injection hole 11 are arranged between the flashback prevention flame holding disk 7 and the end of the gas passage pipe 2, so that the injection direction of the fuel can be better controlled. By adjusting the position and angle of the injection holes, the fuel can be injected to a proper position, thoroughly mixed with air and form a stable combustion region.
In some embodiments, air ventilation holes 9 or air swirl vanes 12 are uniformly distributed on the circumference of the surface of the backfire-proof flame stabilizing disc 7. The provision of air vents 9 or air swirl vanes 12 may introduce additional air and inject it into the combustion zone. By adjusting the amount and distribution of air, the temperature distribution of the combustion zone can be controlled. This helps to avoid localized high temperature regions in the combustion process, reducing the formation of nitrogen oxides (NOx). When the air swirl vanes 12 are uniformly distributed on the circumference of the surface of the anti-backfire flame stabilizing disc 7, a swirl effect can be formed, so that the gas forms rotary flow around the anti-backfire flame stabilizing disc 7, and the swirl can enhance the mixing of fuel and air and ensure that the combustion is more uniform and stable.
In some embodiments, the number of the air swirl vanes 12 is 6 to 12; the rotational flow angle of the air rotational flow blade 12 is 20-60 degrees; the number of the radial fuel injection pipes 8 is 4-10; the number of the gas peripheral injection pipes 3 is 4-12, and the number of the peripheral gas fuel ejectors 4 is consistent with the number of the gas peripheral injection pipes 3; the number of the radial fuel injection holes 11 is 4 to 12.
By adjusting the number of air swirler vanes and the swirl angle, a swirling effect can be created to impart a swirling flow to the gas in the combustion zone. This helps to enhance the mixing of fuel and air, improving combustion efficiency and stability. The number of the radial fuel injection pipes 8 determines the position and distribution of the injected fuel, and by adjusting the number of the injection branch pipes, the reasonable distribution of the fuel in the burner can be realized, and the mixing of the fuel and the air is promoted, so that the combustion efficiency is improved and the generation of nitrogen oxides (NOx) is controlled. The number of peripheral gas injection branches and peripheral gas fuel injectors 4 determines the injection location and distribution of the peripheral fuel. By properly arranging the peripheral gas injection branch pipe and the peripheral gas fuel injector 4, reasonable injection of fuel at the periphery of the burner can be realized, the mixing and burning surface area of the fuel can be increased, and the burning efficiency and stability can be improved. The number of radial injection holes determines the position and distribution of the fuel entering the gas passage pipe 2 from the injection branch pipe, and the injection direction and speed of the fuel can be controlled by adjusting the number of radial injection holes, thereby affecting the mixing and combustion process of the fuel and air. By the arrangement, better fuel and air mixing can be realized, the combustion efficiency and stability are improved, and meanwhile, the generation of nitrogen oxides (NOx) is reduced. Such a design may optimize the performance of the low nitrogen burner, improving the combustion process.
In use, the air channel tube 1 is used for a channel through which air flows to guide the air to the boiler furnace, and the gas channel tube 2 is used for a channel through which gas enters the burner to guide the gas to the boiler furnace. The air enters the burner from the air channel cylinder 1, the air contraction section 6 and the middle air contraction section 14, is divided into two parts between the air closing-in 10 and the backfire-preventing flame stabilizing disc 7, and one part of the air flows between the air closing-in 10 and the backfire-preventing flame stabilizing disc 7 to form peripheral air, and is mixed with fuel gas accelerated by the nozzle of the peripheral gas fuel injector 4 to form peripheral jet air; the other part of air passes through the air vent holes 9 or the air swirl vanes 12 on the surface of the backfire-preventing flame stabilizing disc 7 to form central jet flow or swirl air;
the gas inflow gas passage pipe 2 is divided into three parts. The first part of fuel gas is sprayed out through the radial fuel injection pipe 8 and is mixed with air of the air vent hole 9 to form intermediate flame; the second part of fuel gas is sprayed out through the radial fuel spray hole 11 and is mixed with air of the air vent hole 9 to form a central flame; the air quantity in the area is relatively large, and a low-nitrogen oxygen-enriched combustion atmosphere is formed in the central area; the third part of fuel gas flows into the peripheral gas fuel injector 4 after being sprayed out at a high speed through the fuel gas peripheral injection pipe 3, and after being mixed with part of peripheral air, the fuel gas develops downstream to form a peripheral diffusion flame area, and as the fuel gas flows in the peripheral gas fuel injector 4 to form negative pressure, the air and the flue gas are mixed with the third part of fuel gas by backflow and entrainment, the mixing of the fuel gas, the air and the flue gas is promoted, the combustion is more sufficient, the flame temperature is reduced due to the mixing of low-temperature flue gas, and the NOx is also reduced; and redundant peripheral air forms certain division of a central flame area in the center and peripheral diffusion flames, so that the classification effect is improved, and the flame temperature and NOx are further reduced. The mixing effect and shearing effect of each combustion area are generated by the swirling action, and intense substance and heat transfer is carried out, so that stable and efficient combustion areas are formed together.
The low-nitrogen burner for injecting the propane staged combustion gas provided by the utility model is described in detail above. The description of the specific embodiments is only intended to aid in understanding the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (9)
1. The utility model provides a low nitrogen combustor that propane staged combustion gas penetrated, includes air channel section of thick bamboo (1) and rather than coaxial gas channel pipe (2) that set up, air channel section of thick bamboo (1) cover is located gas channel pipe (2) outside, its characterized in that:
the tail end of the gas channel pipe (2) is sequentially and coaxially provided with a gas contraction section (13) and a gas straight section; the tail end of the air channel cylinder (1) is sequentially and coaxially provided with a middle air contraction section (6), a middle air straightening section (14) and an air adjusting section; the air adjusting section comprises a horn section, a straight section and an air closing-in (10), wherein a plurality of peripheral gas fuel ejectors are uniformly distributed on the periphery and the radial circumference of the air adjusting section, and radial dispersing holes (5) are formed in the end heads of the peripheral gas fuel ejectors; a plurality of gas peripheral injection pipes (3) are uniformly distributed on the radial circumference of the gas channel pipe (2); the tail end of the fuel gas peripheral injection pipe (3) is arranged in a peripheral gas fuel injector; the end part of the fuel gas channel pipe (2) is provided with a radial fuel injection pipe (8), a radial fuel injection hole (11) and an anti-backfire flame stabilizing disc (7).
2. A propane staged combustion gas injection low nitrogen burner as defined in claim 1, wherein:
the peripheral gas fuel injector comprises an injection port and an injection barrel; the two ends of the injection cylinder are opened; the injection port is in a reduced shape; one end of the injection port with smaller aperture is connected with the injection cylinder; the tail end of the fuel gas peripheral injection pipe (3) is arranged in the injection port; the aperture of the injection cylinder is larger than the aperture of the gas peripheral injection pipe (3).
3. A propane staged combustion gas injection low nitrogen burner as defined in claim 2, wherein:
the radial fuel injection pipe (8) and the radial fuel injection hole (11) are arranged between the backfire-proof flame stabilizing disc (7) and the end part of the fuel gas channel pipe (2).
4. A propane staged combustion gas injection low nitrogen burner as defined in claim 2, wherein:
the surface circumference of the tempering-preventing flame stabilizing disc (7) is uniformly provided with air vent holes (9) or air swirl vanes (12).
5. A propane staged combustion gas injection low nitrogen burner as defined in claim 4, wherein:
the number of the air swirl vanes (12) is 6-12.
6. A propane staged combustion gas injection low nitrogen burner as defined in claim 4, wherein:
the rotational flow angle of the air rotational flow blade (12) is 20-60 degrees.
7. A propane staged combustion gas injection low nitrogen burner as defined in claim 3, wherein:
the number of the radial fuel injection pipes (8) is 4-10.
8. A propane staged combustion gas injection low nitrogen burner as defined in claim 3, wherein:
the number of the gas peripheral injection pipes (3) is 4-12, and the number of the peripheral gas fuel ejectors (4) is consistent with the number of the gas peripheral injection pipes (3).
9. A propane staged combustion gas injection low nitrogen burner as defined in claim 3, wherein:
the number of the radial fuel injection holes (11) is 4-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321739562.9U CN220541080U (en) | 2023-07-05 | 2023-07-05 | Low-nitrogen combustor for propane staged combustion gas injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321739562.9U CN220541080U (en) | 2023-07-05 | 2023-07-05 | Low-nitrogen combustor for propane staged combustion gas injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220541080U true CN220541080U (en) | 2024-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321739562.9U Active CN220541080U (en) | 2023-07-05 | 2023-07-05 | Low-nitrogen combustor for propane staged combustion gas injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220541080U (en) |
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2023
- 2023-07-05 CN CN202321739562.9U patent/CN220541080U/en active Active
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