CN220229148U - Low-nitrogen burner for premixing blunt body during propane staged combustion - Google Patents
Low-nitrogen burner for premixing blunt body during propane staged combustion Download PDFInfo
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- CN220229148U CN220229148U CN202321738814.6U CN202321738814U CN220229148U CN 220229148 U CN220229148 U CN 220229148U CN 202321738814 U CN202321738814 U CN 202321738814U CN 220229148 U CN220229148 U CN 220229148U
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 67
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 46
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 23
- 239000001294 propane Substances 0.000 title claims abstract description 23
- 239000007789 gas Substances 0.000 claims abstract description 78
- 239000000446 fuel Substances 0.000 claims abstract description 38
- 239000002737 fuel gas Substances 0.000 claims abstract description 36
- 230000008602 contraction Effects 0.000 claims abstract description 24
- 238000009792 diffusion process Methods 0.000 claims abstract description 16
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 8
- 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
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 45
- 238000013461 design Methods 0.000 abstract description 9
- 239000006185 dispersion Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000000567 combustion gas Substances 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
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011162 downstream development Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000010355 oscillation 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
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 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
Abstract
The utility model relates to the technical field of combustors, and discloses a propane staged combustion blunt body premixed low-nitrogen combustor 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 an air contraction section and a middle air straightening section; a plurality of air diversion cylinders are uniformly distributed on the radial circumference of the surface of the air contraction section; the air diversion cylinder comprises a fuel air premixing channel and a premixing channel horn diffusion opening; a plurality of gas radial branch pipes are uniformly distributed on the radial circumference of the gas channel pipe; the fuel gas radial branch pipe part is arranged in the fuel air premixing passage; the tail end of the fuel gas straight section is provided with a radial fuel injection hole and an anti-backfire flame stabilizing disc. According to the utility model, through the design of the contraction section and the arrangement of the staged combustion of the fuel-air premixing passage, the emission of nitrogen oxides generated by combustion is reduced.
Description
Technical Field
The utility model belongs to the technical field of burners, and particularly relates to a low-nitrogen burner for premixing a blunt body in propane staged combustion.
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. The latest atmospheric emission standards reduce the emission of pollutant gases such as smoke concentration, NOx, CO, etc. 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 premixing a blunt body during propane staged combustion, 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 an air contraction section and a middle air straightening section; a plurality of air diversion cylinders are uniformly distributed on the radial circumference of the surface of the air contraction section; the air diversion cylinder comprises a fuel air premixing channel and a premixing channel horn diffusion opening; a plurality of gas radial branch pipes are uniformly distributed on the radial circumference of the gas channel pipe; the fuel gas radial branch pipe part is arranged in the fuel air premixing passage; the tail end of the fuel gas straight section is provided with a radial fuel injection hole and an anti-backfire flame stabilizing disc.
Further, the gas radial branch pipe is coaxially and sequentially provided with a first-stage radial dispersing hole, a first-stage cyclone mixing blade, a second-stage radial dispersing hole, a second-stage cyclone mixing blade and a gas mixture dispersing disc.
Further, air vent holes or air swirl vanes uniformly distributed on the circumference are arranged on the surface of the backfire-proof flame stabilizing disc.
Further, the number of the first-stage rotational flow mixing blades and the second-stage rotational flow mixing blades is 6-12.
Further, the rotational flow angle of the primary rotational flow mixing blade and the secondary rotational flow mixing blade is 20-60 degrees.
Further, the angle of the horn diffusion opening of the premixing passage is 3-12 degrees.
Further, the number of the fuel gas radial branch pipes is 4-12.
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 air fuel premixing is increased, so that when the air-fuel ratio is biased towards rich combustion, the combustion temperature is lower, the flame temperature is reduced, and the generation of nitrogen oxide 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 blunt premixed low nitrogen burner of the present utility model;
FIG. 2 is a partial schematic view of a propane staged combustion blunt premixed low nitrogen burner of the present utility model;
FIG. 3 is a partial schematic view of a propane staged combustion blunt premixed low nitrogen burner of the present utility model at the gas radial manifold;
FIG. 4 is a side view of a propane staged combustion blunt premixed low nitrogen burner of the present utility model;
FIG. 5 is a side view of a propane staged combustion blunt premixed low nitrogen burner of the present utility model at the gas radial manifold;
FIG. 6 is a perspective view of a propane staged combustion blunt premixed 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; an air constriction section 3; a fuel air premixing passage 4; a premixing channel horn diffusing port 5; a gas radial branch pipe 6; a gas constriction section 7; a gas straight section 8; a backfire-proof flame stabilizing disc 9; radial fuel injection holes 10; air swirl vanes 11; primary radial dispersion holes 12; primary swirl mixing vanes 13; secondary radial dispersion holes 14; a secondary swirl mixing vane 15; a mixture gas dispersion plate 16; an intermediate air straight section 17.
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. 1-6, the low-nitrogen burner for premixing a blunt body in the staged combustion of propane 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 7 and a gas straight section 8; specifically, the gas contraction section 7 is in a contraction shape, one end close to the gas channel pipe 2 is consistent with the aperture size of the gas channel pipe 2, one end close to the gas straight section 8 is consistent with the aperture size of the gas straight section 8, and the aperture size of the gas contraction section 7 gradually becomes smaller from the gas channel pipe 2 to the gas straight section 8; the tail end of the air channel barrel 1 is sequentially and coaxially provided with an air contraction section 3 and a middle air straightening section 17; specifically, the air contraction section 3 is in a contracted shape, one end close to the air passage cylinder 1 keeps consistent with the aperture size of the air passage cylinder 1, one end close to the middle air straightening section 17 keeps consistent with the aperture size of the middle air straightening section 17, and the aperture size of the air contraction section 3 gradually becomes smaller from the air passage cylinder 1 to the middle air straightening section 17; the effect is that the flow velocity and pressure of the fuel gas and the air are increased by reducing the sectional area of the contracted pipeline, so that the fuel gas and the air are better mixed. This helps to form a uniform fuel-air mixture, improving combustion efficiency and stability. The arrangement of the straight section can reduce the turbulence and vortex of the fuel gas, so that the fuel gas can enter the combustion area more uniformly, and the combustion stability and efficiency are further improved.
A plurality of air diversion cylinders are uniformly distributed on the radial circumference of the surface of the air contraction section 3; the air diversion cylinder comprises a fuel air premixing channel 4 and a premixing channel horn diffusion opening 5; the premixing passage horn diffusion opening 5 is positioned in the air diversion cylinder, and the design shape of the premixing passage horn diffusion opening is horn-shaped. When fuel and air enter the air splitter cylinder, the flow rate of air decreases and the static pressure increases as it passes through the premix passage horn diffuser 5, thereby allowing better mixing of the fuel and air. This diffusion effect helps to increase the contact area between the fuel and air, improving the uniformity and completeness of mixing. By designing the premixing passage horn diffuser 5, better fuel and air mixing can be achieved. The fully mixed fuel-air mixture is beneficial to the combustion reaction and improves the combustion efficiency. Meanwhile, through better mixing, the temperature and concentration distribution in the combustion process can be optimized, and the generation of nitrogen oxides (NOx) is reduced, so that the emission of nitrogen oxides of the burner is reduced.
A plurality of gas radial branch pipes 6 are uniformly distributed on the radial circumference of the gas channel pipe 2; the number of air diversion cylinders is consistent with the number of the fuel gas radial branch pipes 6. A part of the fuel gas radial branch pipe 6 is arranged in the fuel air premixing passage 4; specifically, the gas radial branch pipe 6 placed in the fuel-air premixing passage 4 is coaxially arranged with the fuel-air premixing passage 4; the tail end of the gas straight section 8 is provided with a radial fuel injection hole 10 and an anti-backfire flame stabilizing disc 9.
The burner realizes the low-nitrogen combustion of propane by optimizing the mixing process of air and fuel gas. Through the design of the air contraction section and the gas contraction section and the arrangement of the fuel air premixing channel 4, the generation of nitrogen oxides (NOx) in the combustion process is effectively controlled, and the emission of nitrogen oxides generated by combustion is reduced. Bluff body premixing is an advanced combustion technique to improve combustion efficiency and stability by premixing fuel and air during combustion to form a uniform fuel-air mixture. The combustor adopts a blunt body premixing mode, and through the design of the air diversion cylinder and the gas radial branch pipe 6, the uniform mixing of fuel and air is realized, so that the combustion efficiency and stability are improved. By adopting the blunt body premixing technology and through the uniform mixing of fuel and air, the combustion efficiency is improved. Meanwhile, through the design of the air contraction section and the gas contraction section, the combustion area is effectively increased, the combustion reaction is promoted, and the combustion efficiency is further improved. The coaxial arrangement of the gas channel pipe 2 and the air channel barrel 1 and the arrangement of the part of the gas radial branch pipe 6 in the fuel air premixing channel 4 realize the uniform mixing and stable supply of fuel and air, reduce the unstable phenomenon in the combustion process and improve the stability of the burner.
In some embodiments, the gas radial branch pipe 6 is coaxially and sequentially provided with a primary radial dispersing hole 12, a primary rotational flow mixing blade 13, a secondary radial dispersing hole 14, a secondary rotational flow mixing blade 15 and a mixture dispersing disc 16, wherein the mixture dispersing disc 16 is located at the end of the gas radial branch pipe 6. The primary and secondary radial distribution holes 12, 14 are located in the gas radial branch pipe 6 and function to introduce an annular gas flow around the gas in the gas channel. The radial dispersion holes disperse the fuel gas into a plurality of fine streams and increase the contact area between the fuel gas and the air, which is beneficial to mixing the fuel and the air. The primary swirl mixing blades 13 and the secondary swirl mixing blades 15 are positioned downstream of the radial dispersion holes, so that a swirling effect can be generated, and the mixing of fuel gas and air is further enhanced. The swirl mixing blades form rotary flow by guiding the fuel gas, so that the fuel gas and the air are more fully mixed together, and the uniformity and completeness of mixing are improved.
In some embodiments, the surface of the flashback-preventing flame holding plate 9 is provided with air ventilation holes or air swirl vanes 11 uniformly distributed on the circumference. The provision of the flashback resistant flame holding pan 9 may prevent flashback of the flame by providing additional gas (air) to the flame region. By the arrangement of the air vent holes or the air swirl vanes 11, the auxiliary gas is supplied to the flame region so that the flame does not propagate in the direction of the supply air of the burner, thereby enhancing combustion stability. On the other hand, the provision of air vents or air swirl vanes 11 may alter the airflow pattern of the combustion region, create swirl or increase gas flow. This change in airflow pattern helps to maintain a stable shape of the flame, avoiding rocking or severe oscillations of the flame, thereby improving combustion stability. By controlling the air supply of the air vent holes or the air swirl vanes 11, the size and shape of the flame can be adjusted, further optimizing the combustion effect.
In some embodiments, the number of the primary cyclone mixing blades 13 and the secondary cyclone mixing blades 15 is 6-12; the rotational flow angle of the primary rotational flow mixing blade 13 and the secondary rotational flow mixing blade 15 is 20-60 degrees; the angle of the horn diffusion opening 5 of the premixing passage is 3-12 degrees; the number of the fuel gas radial branch pipes 6 is 4-12; the number of the radial fuel injection holes 10 is 4 to 12. The number and swirl angle of the primary and secondary swirl mixing vanes 13, 15 can affect the swirl mixing effect of the gas and air. The number and the angle of the blades can generate proper rotational flow strength and direction, promote the mixing and diffusion of fuel gas and air, and increase the contact area between the fuel gas and the air, thereby improving the uniformity and the completeness of mixing. By adjusting the number and swirl angle of the primary swirl mixing blades 13 and the secondary swirl mixing blades 15, the shape and position of the flame can be controlled, and the combustion stability can be improved. The angle of the premixing passage horn diffusing port 5, the number of the fuel gas radial branch pipes 6 and the number of the radial fuel injection holes 10 can realize better fuel and air mixing, and improve the combustion efficiency. Meanwhile, the optimized mixed design can also reduce the generation of nitrogen oxides (NOx), reduce the emission of nitrogen oxides of the burner and improve the environmental protection performance.
In operation, 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 3 and the middle air straight section 17, is divided into two parts between the air contraction section 3 and the fuel gas channel pipe 2, and one part of air flows between the fuel air premixing channel 4 and the fuel gas radial branch pipe 6 to form premixing air; the fuel gas formed by the primary radial dispersion holes 12, the primary swirl mixing blades 13, the secondary radial dispersion holes 14 and the secondary swirl mixing blades 15 together form premixed gas which is uniformly mixed, and the premixed gas is formed into peripheral premixed combustion gas through the graded diffusion of the mixed gas dispersion plate 16 and the premixed channel horn dispersion opening 5; the other part of air passes through the middle air straight section 17 and the air vent holes or the air swirl vanes 11 on the surface of the coaxial backfire-preventing flame stabilizing disc 9 to form central jet flow or swirl air.
The gas inflow gas passage pipe 2 is divided into two parts. The first part of fuel gas is sprayed out through a radial fuel spray hole 10 arranged at the end part of the fuel gas straight section 8, and is mixed with air flowing out of the middle air straight section 17, the air vent holes or the air swirl vanes 11 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 second part of fuel gas is injected through the fuel gas radial branch pipe 6 at the first radial dispersing hole 12, the first rotational flow mixing blade 13 is in rotational flow mixing, the first premixing is finished, the second radial dispersing hole 14 is injected, the second rotational flow mixing blade 15 is in rotational flow mixing, the formed fuel gas forms premixed gas which is uniformly mixed, the premixed gas is formed through the step diffusion of the mixed gas dispersing disc 16 and the premixing passage horn dispersing opening 5, peripheral premixed combustion gas is formed by downstream development, a peripheral diffusion flame area is formed, and as the fuel gas passes through the first rotational flow mixing blade 13 and the second rotational flow mixing blade 15 and is in rotational flow disturbance, the mixing of the fuel gas and air is promoted, the combustion is more sufficient, the fuel ratio of the air-fuel ratio biased to the rich combustion also reduces the flame temperature, and 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 provided by the utility model for premixing the blunt body of the propane staged combustion 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 (8)
1. The utility model provides a low nitrogen combustor that propane hierarchical burning blunt body was premixed, 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 (7) and a gas straight section (8); the tail end of the air channel cylinder (1) is sequentially and coaxially provided with an air contraction section (3) and a middle air straightening section (17); a plurality of air diversion cylinders are uniformly distributed on the radial circumference of the surface of the air contraction section (3); the air diversion cylinder comprises a fuel air premixing channel (4) and a premixing channel horn diffusion opening (5); a plurality of gas radial branch pipes (6) are uniformly distributed on the radial circumference of the gas channel pipe (2); the fuel gas radial branch pipe (6) is partially arranged in the fuel air premixing passage (4); the tail end of the fuel gas straight section (8) is provided with a radial fuel injection hole (10) and an anti-backfire flame stabilizing disc (9).
2. A propane staged combustion blunt premixed low nitrogen burner as in claim 1 wherein:
the gas radial branch pipe (6) is coaxially and sequentially provided with a first-stage radial dispersing hole (12), a first-stage rotational flow mixing blade (13), a second-stage radial dispersing hole (14), a second-stage rotational flow mixing blade (15) and a mixed gas dispersing disc (16).
3. A propane staged combustion blunt premixed low nitrogen burner as in claim 2 wherein:
the surface of the backfire-proof flame stabilizing disc (9) is provided with air vent holes or air swirl vanes (11) uniformly distributed on the circumference.
4. A propane staged combustion blunt premixed low nitrogen burner as in claim 3 wherein:
the number of the first-stage rotational flow mixing blades (13) and the second-stage rotational flow mixing blades (15) is 6-12.
5. A propane staged combustion blunt premixed low nitrogen burner as in claim 3 wherein:
the rotational flow angle of the primary rotational flow mixing blade (13) and the secondary rotational flow mixing blade (15) is 20-60 degrees.
6. A propane staged combustion blunt premixed low nitrogen burner as in claim 3 wherein:
the angle of the premixing channel horn diffusion opening (5) is 3-12 degrees.
7. A propane staged combustion blunt premixed low nitrogen burner as in claim 3 wherein:
the number of the fuel gas radial branch pipes (6) is 4-12.
8. A propane staged combustion blunt premixed low nitrogen burner as in claim 3 wherein:
the number of the radial fuel injection holes (10) is 4-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321738814.6U CN220229148U (en) | 2023-07-05 | 2023-07-05 | Low-nitrogen burner for premixing blunt body during propane staged combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321738814.6U CN220229148U (en) | 2023-07-05 | 2023-07-05 | Low-nitrogen burner for premixing blunt body during propane staged combustion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220229148U true CN220229148U (en) | 2023-12-22 |
Family
ID=89182298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321738814.6U Active CN220229148U (en) | 2023-07-05 | 2023-07-05 | Low-nitrogen burner for premixing blunt body during propane staged combustion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220229148U (en) |
-
2023
- 2023-07-05 CN CN202321738814.6U patent/CN220229148U/en active Active
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