CN115307141A - Method for prolonging length of hydrogen flame in combustor and hydrogen combustor device - Google Patents
Method for prolonging length of hydrogen flame in combustor and hydrogen combustor device Download PDFInfo
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- CN115307141A CN115307141A CN202111489930.4A CN202111489930A CN115307141A CN 115307141 A CN115307141 A CN 115307141A CN 202111489930 A CN202111489930 A CN 202111489930A CN 115307141 A CN115307141 A CN 115307141A
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 156
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 156
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 151
- 238000000034 method Methods 0.000 title claims abstract description 15
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 87
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000001301 oxygen Substances 0.000 claims abstract description 55
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 55
- 238000002485 combustion reaction Methods 0.000 claims abstract description 44
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 38
- 239000007789 gas Substances 0.000 claims abstract description 37
- 101710141078 Ammonium transporter Proteins 0.000 claims abstract description 22
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 15
- 239000010935 stainless steel Substances 0.000 claims abstract description 15
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 14
- 239000011229 interlayer Substances 0.000 claims description 6
- 239000002737 fuel gas Substances 0.000 claims description 5
- 230000009970 fire resistant effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000012466 permeate Substances 0.000 abstract description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 239000000446 fuel Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
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- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- -1 wherein Chemical compound 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
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
-
- 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
- F23D14/60—Devices for simultaneous control of gas and combustion air
-
- 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
- F23D14/84—Flame spreading or otherwise shaping
-
- 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 application discloses a method for prolonging the length of hydrogen flame in a combustor and a hydrogen combustor device. The device includes: the hydrogen gas premixing device comprises an innermost hydrogen channel, an intermediate ammonia channel, an outermost oxygen channel and a stainless steel shell, wherein the hollow hydrogen channel is used for conveying hydrogen, and the ammonia channel is sleeved on the periphery of the hydrogen channel and communicated with the hydrogen channel to a gas premixing chamber. The hydrogen and the ammonia are firstly premixed preliminarily in the premixing chamber. The premixing chamber is positioned at the front side of the hydrogen flow path, the outlet of the premixing chamber is communicated with the nozzle, the outlet of the premixing chamber is parallel to the outlet of the oxygen flow path at the periphery of the premixing chamber, and the flowing premixed gas and oxygen respectively flow in parallel in a channel close to the nozzle in the combustor, so that the premixed gas and the oxygen permeate/mix with each other at the inner side flow path side of the nozzle to slow down the combustion rate of the hydrogen, increase the flame length of the hydrogen combustion is realized, the combustion speed is slowed down, the flame stability is enhanced, and the safety of the hydrogen combustor is improved.
Description
Technical Field
The application relates to the field of hydrogen burners, in particular to a method suitable for prolonging the length of combustion flame of a hydrogen burner in a large industrial kiln and a corresponding hydrogen burner device.
Background
In recent years, the consumption of fossil energy in the world has been increasing, and a series of environmental problems such as greenhouse effect have been brought about. Therefore, research and application of carbon-free or low-carbon fuel are urgent and are gradually paid attention from various countries in the world. And hydrogen is an ideal clean fuel. The combustion product is water, and zero carbon emission can be realized in real sense. The hydrogen has wide sources and rich application scenes, and can be used as a medium for high-efficiency conversion of substances and energy among various energy sources. In addition, the hydrogen has the advantages of high heat value, high combustion efficiency and the like, is a high-quality heat source with great development potential in the fields of industrial metallurgy, combustion, forging and the like, and is primarily applied in the fields of industrial kiln burners and the like.
With the technological progress and the improvement of production requirements, the industrial kiln is continuously subjected to energy-saving reconstruction and heating technology upgrading. Industrial kilns are increasing in volume and section width in order to reduce heat dissipation, increase space utilization and product productivity. In order to meet the requirement of product quality, the requirement of uniformity of the temperature field in the inner space of the kiln is higher. In general, the covering area of the flame generated by the burner is as large as possible, heat is transferred to products in the kiln as much as possible, and the requirements of good temperature uniformity of the flame, long flame length, high flame stability, low flame impulse and the like are met.
However, hydrogen combustion has special combustion characteristics such as a wide ignition range, a high combustion speed, a high flame propagation speed, and low ignition energy, as compared with other fuels. This makes the combustion of hydrogen show the characteristics of strong tempering tendency, high combustion temperature, narrow flame front, short flame length, etc. Under the condition, the short hydrogen flame cannot uniformly heat the large-space industrial kiln.
Therefore, the common gas burner is not suitable for hydrogen combustion, and a method capable of prolonging the flame length of hydrogen combustion and realizing no carbon emission is urgently needed at present so as to meet the requirement of hydrogen in the combustion field under the low-carbon background.
Disclosure of Invention
To solve the existing problems. The purpose of this application lies in: aiming at the defects and shortcomings of the existing hydrogen combustor, a method for prolonging the flame length of the hydrogen combustor and a corresponding hydrogen combustor device are provided. According to the method for prolonging the flame length of the hydrogen combustor, the ammonia fuel and the hydrogen are combusted in a combined mode, and the combustion speed of mixed flame is reduced by utilizing the characteristics of high ammonia ignition energy and low combustion speed and heat value, so that the flame length of the hydrogen combustor is prolonged, the flame stability is improved, and the requirement of a large-space industrial kiln on a uniform temperature field is met.
In order to achieve the purpose, the following technical scheme is adopted in the application:
a hydrogen burner apparatus adapted to extend the flame length of hydrogen gas, comprising:
the method comprises the following steps: an innermost hydrogen channel, an ammonia channel sleeved on the periphery of the hydrogen channel, an outermost oxygen channel and a shell,
the hydrogen channel is used for conveying hydrogen, the ammonia channel is used for conveying ammonia, a fire-resistant interlayer is arranged between the hydrogen channel and the ammonia channel,
one end of the outlet of the hydrogen channel and the outlet of the ammonia channel are provided with a gas premixing chamber,
the oxygen channel is contracted into a nozzle at the outlet end,
and hydrogen and ammonia in the gas premixing chamber are mixed and then enter the nozzle, and are led out from the nozzle together with oxygen introduced into the oxygen channel.
Preferably, one side in the hydrogen passage and one side in the ammonia passage are communicated with the gas premixing chamber, and the ratio of the inner diameter of the hydrogen passage to the inner diameter of the ammonia passage is 1.25-1.6.
Preferably, the ratio of the inner diameter of the hydrogen passage to the inner diameter of the gas premixing chamber is between 0.625 and 0.8.
Preferably, the ratio of the inner diameter of the gas premixing chamber to the inner diameter of the nozzle is 0.4-0.625
Preferably, the hydrogen passage is located in the center of the hydrogen burner device, the outer passage thereof is an ammonia passage, and the hydrogen passage and the ammonia passage are communicated with the gas premixing chamber for mixing the hydrogen and the ammonia.
Preferably, the oxygen passage is arranged outside the ammonia passage, and the outlet of the oxygen passage and the outlet of the premixing chamber are kept in parallel at the nozzle so as to enable the gas to be subjected to non-premixed combustion.
The embodiments of the present application provide a method of extending a flame length of a hydrogen burner, which is applicable to a hydrogen burner apparatus that may extend a flame length of hydrogen, as described above, in which method,
the hydrogen channel, the ammonia channel and the oxygen channel are respectively connected with corresponding gas sources,
the combustion reaction degree of the fuel gas is adjusted by controlling the introduction amount of the hydrogen, the ammonia and the oxygen, so that the outlet temperature, the flame length and the combustion speed of the hydrogen combustor are controlled. If, hydrogen passageway, ammonia passageway and oxygen passageway are connected corresponding air supply respectively, through the volume of letting in of control hydrogen, ammonia and oxygen, wherein, hydrogen and ammonia volume ratio are between 100:5 and 100:50, the volume ratio of hydrogen to oxygen is between 100:50 and 100:90, so as to realize the control of the outlet temperature of the hydrogen burner, the flame length and the burning speed. The included angle of the central axis of the outlet of the oxygen channel and the central axis of the outlet of the premixing chamber at the nozzle is smaller than 15 degrees, therefore, hydrogen and ammonia are firstly premixed preliminarily in the premixing chamber, the outlet of the premixing chamber is communicated with the nozzle, the outlet of the premixing chamber is parallel or approximately parallel to the outlet of the oxygen flow path at the periphery of the premixing chamber, and premixed gas and oxygen respectively flow in the channel close to the nozzle in the combustor in parallel or approximately parallel in the flowing process towards the nozzle, so that the premixed gas and the oxygen permeate/mix with each other at the flowing edge of the inner side of the nozzle, the combustion rate of the hydrogen can be slowed down, and the length of the flame of hydrogen combustion is increased.
Advantageous effects
The hydrogen burner device of the embodiment of the application uses ammonia gas as auxiliary fuel to mix hydrogen gas in the hydrogen burner, and the burner is provided with hydrogen gas, an ammonia gas channel and an oxygen gas channel. Hydrogen and ammonia are first preliminarily premixed in a gas premixing chamber. The premixed fuel and the oxygen are kept in parallel at the outlet of the channel at the nozzle, so that the premixed gas and the oxygen are subjected to non-premixed combustion outside the nozzle of the combustor. The hydrogen has high reactivity and high combustion speed, and the flame length is shorter. The ammonia gas has the characteristics of low reaction activity, low combustion speed, relatively high octane number, better anti-explosion performance and the like, so that the device can effectively prolong the flame length of the hydrogen gas and reduce the combustion speed by utilizing the ammonia gas. Meanwhile, the stability of hydrogen flame can be enhanced, the oscillation of the hydrogen flame is reduced, the effect of inhibiting related dangers possibly caused by pure hydrogen combustion is effectively achieved, and the use safety of the hydrogen combustor is improved. Through adjusting the volume of letting in hydrogen, ammonia and oxygen, can adjust the combustion reaction degree to the realization is to the control of hydrogen combustor exit temperature, flame length and burning rate.
Drawings
FIG. 1 is a schematic longitudinal cross-sectional view of a hydrogen burner of the present invention incorporating ammonia gas to extend the flame length.
FIG. 2 is a schematic view of the transverse interface of a hydrogen burner of the present invention incorporating ammonia gas to extend the flame length.
In the figure: 1: a hydrogen gas passage; 2. 2-1, 2-2: an ammonia gas channel; 3. 3-1, 3-2: an oxygen channel; 4: a gas premixing chamber; 5: a nozzle; 6: a stainless steel housing; 7: a stainless steel inner wall; 8: a refractory filler barrier.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present application. The conditions employed in the examples may be further adjusted as determined by the particular manufacturer, and the conditions not specified are typically those used in routine experimentation.
The application discloses hydrogen combustor device suitable for can prolong hydrogen combustor flame length, it includes: the hydrogen channel of the innermost layer, the ammonia channel of the middle layer, the oxygen channel of the outermost layer and the stainless steel shell. The hollow hydrogen channel is used for conveying hydrogen, and the ammonia channel is sleeved on the periphery of the hydrogen channel and communicated with the hydrogen channel to the gas premixing chamber. The hydrogen and ammonia are first premixed initially in the premixing chamber. The premixing chamber is positioned at the front side of the hydrogen channel, the outlet of the premixing chamber is communicated with the nozzle, the outlet of the premixing chamber is parallel (approximately parallel) to the outlet of the oxygen flow channel at the periphery of the premixing chamber, so that the flowing premixed fuel and oxygen respectively flow in parallel in the channel close to the nozzle in the combustor, the premixed gas and the oxygen are mutually permeated/mixed in the flow channel at the inner side of the nozzle (namely in an incomplete mixing state), the combustion rate of the hydrogen is further slowed, and the flame length can be further prolonged. Furthermore, the combustion reaction degree can be effectively adjusted by controlling the introduction amount of hydrogen, ammonia and oxygen, so that the outlet temperature, the flame length and the combustion speed of the hydrogen combustor can be controlled. The ammonia gas has the characteristics of small flammable limit range, low combustion speed and low reaction speed. The hydrogen has the characteristics of high reaction activity, high combustion speed, strong diffusion capacity and the like. The hydrogen and the ammonia are premixed, so that the effects of reducing the combustion speed of mixed gas, prolonging the flame length and stabilizing the flame can be achieved, and the device is suitable for large-scale industrial kilns.
The hydrogen burner apparatus of the present application will be further described with reference to figures 1 and 2,
fig. 1 and 2 are schematic longitudinal and transverse cross-sectional views of a hydrogen burner device capable of extending the length of a hydrogen flame. The hydrogen burner apparatus includes: the device comprises a hydrogen channel 1, an ammonia channel 2-1/2-2, an oxygen channel 3-1/3-2, a gas premixing chamber 4, a nozzle 5, a stainless steel shell 6, a stainless steel inner wall 7 and a fireproof filling interlayer 8.
In operation of the hydrogen burner apparatus, hydrogen and ammonia gas enter the burner through channels 1 and 2-1, 2-2, respectively, and are premixed in a premixing chamber 4.
Oxygen enters the combustor through the air inlet channels 3-1 and 3-2 and enters the nozzle 5 together with the mixed gas in the premixing chamber 4. The outlet of the channel of the fuel gas mixed by hydrogen and ammonia gas is parallel to the outlet of the oxygen channel (or the included angle of the central axes is less than 15 degrees, so that the fuel gas and the oxygen gas are parallel to each other) so as to ensure that a part of the fuel gas and the oxygen gas are combusted in a non-premixed mode outside the nozzle.
In the mode, the hydrogen gas combustion flame length is increased by premixing with ammonia gas, the combustion speed is reduced, the flame stability is enhanced, and the safety of the hydrogen combustor is improved. In one embodiment, the fuel and oxygen are combusted non-premixed by the design of parallel outlets of the fuel and oxygen at the nozzle of the device. Part gas and oxygen mix in the combustor, and remaining gas and oxygen rely on the diffusion effect burning outside the nozzle, can further slow down the burning rate of hydrogen, extension flame length, reach the purpose of increase flame coverage area and adjust the air input of hydrogen and ammonia and can also realize the sensitive regulation to hydrogen flame length. In addition, compare in the too high temperature of pure hydrogen when burning and can cause nitrogen oxide's formation, harm atmospheric environment, the ammonia of this application embodiment mixes the back with hydrogen, can effectively reduce hydrogen combustion temperature, increase flame coverage area to play the effect that reduces nitrogen oxide and generate. Meanwhile, ammonia does not contain carbon, only nitrogen is generated by combustion under the condition of pure oxygen, and extra carbon emission is not caused. This makes the device of this application embodiment not only can not increase carbon emission when using, can also reduce the formation of nitrogen oxide, helps ecological environment sustainable development.
In the present embodiment, by controlling the introduction of hydrogen, ammonia and oxygen (the volume ratio of hydrogen to ammonia is between 100 and 100, and the volume ratio of hydrogen to oxygen is between 100 and 50 and 100), the combustion reaction degree can be effectively adjusted, thereby realizing the control of the outlet temperature of the hydrogen burner, the flame length and the combustion speed. One side in the hydrogen channel and one side in the ammonia channel are communicated with the gas premixing chamber, and the ratio of the inner diameter of the hydrogen channel to the inner diameter of the ammonia channel is 1.25-1.6. The ratio of the inner diameter of the hydrogen passage to the inner diameter of the gas premixing chamber is 0.625-0.8. The ratio of the inner diameter of the gas premixing chamber to the inner diameter of the nozzle is between 0.4 and 0.625. The design can realize the control of the outlet temperature, the flame length and the combustion speed of the hydrogen combustor.
In one embodiment, the hydrogen burner apparatus comprises a hollow hydrogen channel, an ammonia channel, an oxygen channel, and a stainless steel casing, wherein the ammonia channel is sleeved on the hydrogen channel with a space therebetween, the space is used as the ammonia channel, the stainless steel casing is sleeved on the ammonia channel, the stainless steel casing is spaced from the ammonia burner tube, and the space is used as the oxygen channel. When the hydrogen burner device operates, hydrogen and ammonia respectively enter the burner from the hollow hydrogen passage 1 and the ammonia passages 2-1 and 2-2, and enter the nozzle after being premixed in the gas premixing chamber 4, and the outlet of the premixing chamber 4 is parallel to the outlet of the oxygen passage, so that non-premixed combustion of a part of gas and oxygen is ensured outside the nozzle, the part of gas and oxygen are mixed in the burner, and the rest of gas and oxygen are combusted outside the nozzle under the diffusion action, the combustion speed of the hydrogen can be further slowed down, the flame length is prolonged, and the purpose of increasing the flame coverage area is achieved.
The above embodiments are merely illustrative of the technical concepts and features of the present application, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present application and implement the present application, and not to limit the protection scope of the present application. All equivalent changes and modifications made within the spirit of the present application are intended to be covered by the scope of the present application.
Claims (10)
1. A hydrogen burner apparatus adapted to extend the length of a hydrogen flame, comprising:
the method comprises the following steps: an innermost hydrogen channel, an ammonia channel sleeved on the periphery of the hydrogen channel, an outermost oxygen channel and a shell,
the hydrogen channel is used for conveying hydrogen, the ammonia channel is used for conveying ammonia, a fire-resistant interlayer is arranged between the hydrogen channel and the ammonia channel,
one end of the outlet of the hydrogen passage and the outlet of the ammonia passage are provided with a gas premixing chamber,
the oxygen passage is contracted into a nozzle at the outlet end,
and the hydrogen and the ammonia in the gas premixing chamber are mixed and then enter the nozzle, and are led out from the nozzle together with the oxygen introduced into the oxygen channel.
2. A hydrogen burner apparatus adapted for extending the length of a hydrogen flame according to claim 1, wherein:
one side in the hydrogen channel is communicated with one side in the ammonia channel, and the ratio of the inner diameter of the hydrogen channel to the inner diameter of the ammonia channel is 1.25-1.6.
3. A hydrogen burner apparatus adapted for extending the length of a hydrogen flame according to claim 2, wherein:
the ratio of the inner diameter of the hydrogen channel to the inner diameter of the gas premixing chamber is 0.625-0.8.
4. A hydrogen burner apparatus adapted for extending the length of a hydrogen flame according to claim 1, wherein:
the ratio of the inner diameter of the gas premixing chamber to the inner diameter of the nozzle is 0.4-0.625.
5. A hydrogen burner apparatus adapted for extending the length of a hydrogen flame according to claim 1, wherein:
the hydrogen passage is positioned in the center of the hydrogen burner device, the outer passage of the hydrogen passage is an ammonia passage, and the hydrogen passage and the ammonia passage are communicated with the gas premixing chamber and are used for mixing hydrogen and ammonia.
6. A hydrogen burner apparatus adapted to extend the flame length of hydrogen gas according to claim 5, wherein:
the oxygen passage is arranged at the outer side of the ammonia passage, and the outlet of the oxygen passage and the outlet of the premixing chamber are kept in parallel at the nozzle, so that the fuel gas is subjected to non-premixed combustion.
7. A hydrogen burner apparatus adapted for extending the length of a hydrogen flame according to claim 1, wherein:
further comprising: and the stainless steel shell is sleeved on the fireproof filling interlayer, a gap is formed between the stainless steel shell and the fireproof filling interlayer, and the gap is used as a channel of oxygen.
8. A hydrogen burner apparatus adapted to extend the flame length of hydrogen gas according to claim 7, wherein: further comprising:
and the stainless steel inner wall is arranged on the side, close to the stainless steel shell, of the refractory filling interlayer, and a space is formed between the stainless steel shell and the stainless steel inner wall and is used as a passage for oxygen.
9. A method of extending the length of a hydrogen flame, comprising a hydrogen burner apparatus as claimed in any one of claims 1 to 8, characterized in that: the method comprises the following steps:
the hydrogen channel, the ammonia channel and the oxygen channel are respectively connected with corresponding gas sources,
by controlling the input amount of hydrogen, ammonia and oxygen,
wherein the volume ratio of hydrogen to ammonia is between 100:5 and 100:50, the volume ratio of hydrogen to oxygen is between 100:50 and 100:90, so as to realize the control of the outlet temperature of the hydrogen burner, the flame length and the burning speed.
10. The method of extending a hydrogen flame length of claim 9, wherein:
and the included angle between the central axis of the outlet of the oxygen passage and the central axis of the outlet of the premixing chamber at the nozzle is less than 15 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111489930.4A CN115307141B (en) | 2021-12-08 | 2021-12-08 | Method for prolonging hydrogen flame length in burner and hydrogen burner device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111489930.4A CN115307141B (en) | 2021-12-08 | 2021-12-08 | Method for prolonging hydrogen flame length in burner and hydrogen burner device |
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| CN115307141A true CN115307141A (en) | 2022-11-08 |
| CN115307141B CN115307141B (en) | 2024-04-19 |
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2021
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| Title |
|---|
| 周永浩;李艳超;姜海鹏;张术琳;甘波;高伟;: "氨气预混旋流燃烧火焰稳定性及燃烧极限研究", 工程热物理学报, no. 07, 15 July 2018 (2018-07-15) * |
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| CN115307141B (en) | 2024-04-19 |
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