CN102853429B - Gas burner - Google Patents
Gas burner Download PDFInfo
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- CN102853429B CN102853429B CN201210229300.8A CN201210229300A CN102853429B CN 102853429 B CN102853429 B CN 102853429B CN 201210229300 A CN201210229300 A CN 201210229300A CN 102853429 B CN102853429 B CN 102853429B
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Abstract
The invention relates to a gas burner and belongs to the technical field of gas appliances. The gas burner comprises a burner casing. A gas pipe port is fixedly connected with a gas connector provided with a first gas inlet through an outer gas pipe, the outer gas pipe extends to an air outlet end, and the outer gas pipe and the burner casing from a first channel connected with an air inlet. An inner gas pipe provided with a gas inlet end and a gas outlet end is concentrically arranged in the outer gas pipe, the outer gas pipe and the inner gas pipe form a second channel, the gas inlet end is connected with a second gas inlet extending out of the gas connector. The gas outlet end of the outer gas pipe is provided with a pre-mixing contracted pipe, the gas outlet end of the inner gas pipe is located in the pre-mixing contracted pipe, and the pre-mixing contracted pipe is located in the gas outlet end of the burner casing. A rotational flow ring is respectively arranged in the inner gas pipe, the second channel and the first channel. The gas burner well solves the problem of mixed burning of two gases, achieves use of low-heating-value gases on an annular sleeve kiln, can save investment cost, and ensures quality and quantity of lime roasted by the annular sleeve kiln.
Description
Technical field
The present invention relates to a kind of fuel burner nozzle, especially a kind of fuel burner nozzle for annular lime kiln, belongs to burner technology field.
Background technology
Annular lime kiln is for the production of products such as the active limes smelted needed for high-quality steel, and fuel generally selects steel and iron industry to produce the byproduct---blast furnace gas, coke-stove gas, the coal gas of converter etc. that produce.The typical structure of burner nozzle of annular sleeve kiln is for disclosed in the Chinese patent of application number 201010515524.6, this fuel burner nozzle for Industrial Stoves comprising outer tube for entering air, managing for entering in combustion gas, described outer tube has at least two-stage closing in form at least two-stage accelerating region, the front portion of interior pipe is furnished with gas outlet in side, be provided with a baffle plate at end face, what make combustion gas and air is mixed to form eddy current.
In order to make the burner of above-mentioned typical structure can use two kinds of different combustion gas simultaneously, for a long time, adopt the method setting up mixing pressurizing point always, make coal gas and the low-heat value gas blending in advance of high heating value, then flow to annular lime kiln.There is inevitable drawback in this method: the investment of 1. building mixing pressurizing point is high; 2. because calorific value of gas exists fluctuation, mixed proportion need regulate, and the metering of mixed gas is difficult to accurately; 3. as pressure reduction before two kinds of coal gas mixing is comparatively large, must to wherein a kind of decompression or pressurization, result causes energy loss.
Summary of the invention
The present invention wants technical solution problem to be: the drawback existed for above prior art, proposes a kind of fuel burner nozzle that can solve two kinds of gas mixings by self structure, thus meet the multifuel combustion requirement of annular lime kiln and so on Industrial Stoves in simple and direct mode.
The present invention solves the problems of the technologies described above by the following technical programs, a kind of fuel burner nozzle, comprises the burner shell with Gas Pipe interface, air intlet and outlet side; Described Gas Pipe interface is fixedly connected with the gas joint with the first fuel gas inlet by outer Gas Pipe, and described outer Gas Pipe penetrates in burner shell and extends to described outlet side, and with form the first passage being communicated with described air intlet between burner shell; In described outer Gas Pipe, arranged concentric has the interior Gas Pipe of fuel gas inlet end and gas outlet end, forms second channel between described outer Gas Pipe and interior Gas Pipe, and described fuel gas inlet end is communicated with second fuel gas inlet of stretching out described gas joint; The premix draw of flaring is equipped with in the outlet side of described outer Gas Pipe; The gas outlet end of described interior Gas Pipe is positioned at the described premix draw, and the described premix draw is positioned at the outlet side of described burner shell; Cyclone ring is settled respectively in pipe, second channel, first passage in described combustion gas.
After adopting technical scheme of the present invention, two kinds of combustion gas are not only rationally made to be able to mix in burner, without the need to preposition mixing pressurizing point, and by the burner shell inside contracted successively, with the outer Gas Pipe of the premix draw, interior Gas Pipe and the corresponding cyclone ring arranged, the combustion gas in combustion gas in pipe is made to produce eddy flow at its gas outlet end, afterwards with the another kind of combustion gas of second channel its export produce eddy flow after mutually mix, produce eddy flow with first passage outlet side again and mixed by the air that premix draw divergent segment raises speed, therefore desirable Thorough combustion effect can be obtained.
The present invention further improves, and the extension diameter section of the described premix draw has circumference passage spaced apart, and the projection of the passage of described premix draw Gas Pipe axial section is outside perpendicular to divergent segment.Like this, air not only raises speed because divergent segment reduces the sectional area of first passage, and partly through passage and air mixture premix, can mix afterwards again, be more conducive to Thorough combustion with high-speed air secondary.
It is that the rotation direction of each adjacent cyclone ring in described combustion gas in pipe, second channel, first passage is contrary that the present invention further improves.Adverse current mixed effect can be formed like this, thus make mixed effect better.
The present invention further improves, and the projection of the passage of described premix draw Gas Pipe end face outside revolves to tilt in the opposite direction towards cyclone ring in described first passage.Premix can be made so also to realize under counter-current condition.
In addition, for making various gas uniform mix, the spinning disk formation that described cyclone ring has at least two circumferences uniform, the helical angle of described spinning disk is 20 ~ 40 °.
During use, the combustion gas of two kinds of different calorific values, different pressures enters outer Gas Pipe and interior Gas Pipe respectively simultaneously, vortex gas-flow is formed through cyclone ring, combustion air is by first passage and above-mentioned two kinds of combustion gas mixing simultaneously, combustion chamber combustion is entered, for lime calcining provides heat after mixing under the effect of the premix draw.
In a word, the present invention compared with prior art, has properly settled two kinds of gas mixed burning difficult problems, realizes the use of low-calorie combustion gas on annular lime kiln, not only can investment reduction cost, also assures that the seed output and quality of annular lime kiln lime burning.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is that the A-A of Fig. 1 is to structural representation.
Detailed description of the invention
Embodiment one
The structure of the present embodiment as depicted in figs. 1 and 2, the fuel burner nozzle device of annular lime kiln, comprise the burner shell 8 with Gas Pipe interface, air intlet and outlet side, its outlet side is by the clamp flange 1 on flange, bolt 4, nut 5 and spring washer 6 fixed interface parts 3.Gas Pipe interface adopts binding clip 13 to be fixedly connected with flange 14 by outer Gas Pipe 9 with the gas joint 18 with outer fuel gas inlet, and lifting bolt 12 is for lifting.Outer Gas Pipe 9 penetrates in burner shell 8 and extends to outlet side, and with form the first passage 25 being communicated with air intlet between burner shell 8, its air intlet end is equipped with the Hand-operated butterfly valve 11 for regulating air-flow.In outer Gas Pipe 9, arranged concentric has the interior Gas Pipe 10 of fuel gas inlet end and gas outlet end, second channel 26 is formed between outer Gas Pipe 9 and interior Gas Pipe 10, fuel gas inlet end is communicated with second fuel gas inlet of stretching out gas joint, and is fixed on the end of gas joint 18 by asbestos pad 20, hex bolts 21, hex nut 22 and packing ring 23.Gas joint 18 is fixed with square toes holding screw 19.The premix draw 2 of flaring is equipped with in the outlet side of outer Gas Pipe 9; The gas outlet end of interior Gas Pipe 10 is positioned at the premix draw 2, and the premix draw 2 is positioned at the outlet side of burner shell 8; Internal combustion tracheal strips is third channel 27.Cyclone ring 7 is settled respectively in the first to third channel.Outer Gas Pipe 9 is equipped with rotation hand wheel 17 on the position of gas joint 18, on burner shell 8, near rotation hand wheel 17 bottom and near flange 14 position on be provided with round nut 16 and adjusting nut 15, to regulate the distance between outer Gas Pipe 9 and burner shell 8 outlet side, and then the distance between the cyclone ring in adjustment first passage exit and the premix draw 2, be convenient to the mixed effect regulating combustion air and combustion gas.For making various gas mix better, being provided with circumference and being evenly arranged 8 spinning disks in cyclone ring 7, the helical angle of spinning disk is 30 ° (20 ~ 40 °).The inlet end bridge piece 24 of interior Gas Pipe 10, for regulating the angle of bend and the direction that arrange bend pipe according to field condition.
During use, the combustion gas of two kinds of different calorific values, different pressures enters outer Gas Pipe and interior Gas Pipe respectively simultaneously, vortex gas-flow is formed through cyclone ring, combustion air is by first passage and above-mentioned two kinds of combustion gas mixing simultaneously, combustion chamber combustion is entered, for lime calcining provides heat after mixing under the effect of the premix draw.Two kinds of combustion gas are so not only rationally made to be able to mix in burner, without the need to preposition mixing pressurizing point, and by the burner shell inside contracted successively, the outer Gas Pipe of the band premix draw, interior Gas Pipe and the corresponding cyclone ring arranged, the combustion gas in combustion gas in pipe is made to produce eddy flow at its gas outlet end, afterwards with the another kind of combustion gas of second channel its export produce eddy flow after mutually mix, produce eddy flow with first passage outlet side again and mixed by the air that premix draw divergent segment raises speed, therefore can obtain desirable Thorough combustion effect.
Experiment shows, when the combustion-supporting air flow speed control entering burner shell controls at 25 ~ 30 m/s built in 8 ~ 12 m/s, the fuel gas with low heat value flow control that enters outer combustion at 20 ~ 25 m/s, the high heating value gas flow rate that enters combustion tracheae, and best results.
In the present embodiment, the extension diameter section of the premix draw 2 has circumference passage spaced apart, and the projection of the passage of premix draw Gas Pipe axial section is outside perpendicular to divergent segment.Like this, air not only raises speed because divergent segment reduces the sectional area of first passage, and partly through passage and air mixture premix, can mix afterwards again, be more conducive to Thorough combustion with high-speed air secondary.In addition, the rotation direction of each adjacent cyclone ring in combustion gas in pipe 10, second channel 26, first passage 25 is contrary.The passage projection of Gas Pipe 9 end face outside of the premix draw 2 is revolved towards cyclone ring in first passage 25 and is tilted (see Fig. 2) in the opposite direction.Premix can be made so also to realize under counter-current condition.
In addition to the implementation, the present invention can also have other embodiments, and the flow channel of the concentric arrangement that all employings are similar or exchange combustion air and combustion gas, all drops on the protection domain of application claims.
Claims (6)
1. a fuel burner nozzle, comprises the burner shell with Gas Pipe interface, air intlet and outlet side; Its spy is: described Gas Pipe interface is fixedly connected with the gas joint with the first fuel gas inlet by outer Gas Pipe, described outer Gas Pipe penetrates in burner shell and extends to described outlet side, and with form the first passage being communicated with described air intlet between burner shell; In described outer Gas Pipe, arranged concentric has the interior Gas Pipe of fuel gas inlet end and gas outlet end, forms second channel between described outer Gas Pipe and interior Gas Pipe, and described fuel gas inlet end is communicated with second fuel gas inlet of stretching out described gas joint; The premix draw of flaring is equipped with in the outlet side of described outer Gas Pipe; The gas outlet end of described interior Gas Pipe is positioned at the described premix draw, and the described premix draw is positioned at the outlet side of described burner shell; Cyclone ring is settled respectively in described interior Gas Pipe, second channel, first passage; The extension diameter section of the described premix draw has circumference passage spaced apart, and the projection of the passage of described premix draw Gas Pipe axial section is outside perpendicular to divergent segment; The rotation direction of each adjacent cyclone ring in described interior Gas Pipe, second channel, first passage is contrary.
2. fuel burner nozzle according to claim 1, is characterized in that: the projection of the passage of described premix draw Gas Pipe end face outside revolves to tilt in the opposite direction towards cyclone ring in described first passage.
3. fuel burner nozzle according to claim 2, is characterized in that: described cyclone ring is made up of the spinning disk that at least two circumferences are uniform, and the helical angle of described spinning disk is 20 ~ 40 °
4. fuel burner nozzle according to claim 3, is characterized in that: described air intlet end is equipped with Hand-operated butterfly valve.
5. fuel burner nozzle according to claim 4, is characterized in that: described outer Gas Pipe is equipped with rotation hand wheel on the position of gas joint.
6. fuel burner nozzle according to claim 5, is characterized in that: the inlet end bridge piece of described interior Gas Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210229300.8A CN102853429B (en) | 2012-07-04 | 2012-07-04 | Gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210229300.8A CN102853429B (en) | 2012-07-04 | 2012-07-04 | Gas burner |
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| Publication Number | Publication Date |
|---|---|
| CN102853429A CN102853429A (en) | 2013-01-02 |
| CN102853429B true CN102853429B (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210229300.8A Active CN102853429B (en) | 2012-07-04 | 2012-07-04 | Gas burner |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574606B (en) * | 2013-11-18 | 2016-01-06 | 南通宝聚颜料有限公司 | A kind of combustion of hydrogen device |
| CN103615722B (en) * | 2013-12-19 | 2015-08-19 | 山东百川同创能源有限公司 | The rough biomass gas burner of high temperature |
| CN112648613B (en) * | 2020-12-25 | 2023-03-24 | 江苏宇力节能科技有限公司 | Combustor for annular sleeve kiln lower combustion chamber and flameless combustion method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2937979Y (en) * | 2006-06-28 | 2007-08-22 | 南京中圣园机电设备有限公司 | Ring-shaped sleeve kiln of burning low heat value gas |
| JP4892107B1 (en) * | 2011-03-23 | 2012-03-07 | 新日鉄エンジニアリング株式会社 | Top-fired hot air furnace |
| CN202927839U (en) * | 2012-07-04 | 2013-05-08 | 江苏中圣园科技股份有限公司 | Gas nozzle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55141708U (en) * | 1980-03-12 | 1980-10-09 |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2937979Y (en) * | 2006-06-28 | 2007-08-22 | 南京中圣园机电设备有限公司 | Ring-shaped sleeve kiln of burning low heat value gas |
| JP4892107B1 (en) * | 2011-03-23 | 2012-03-07 | 新日鉄エンジニアリング株式会社 | Top-fired hot air furnace |
| CN202927839U (en) * | 2012-07-04 | 2013-05-08 | 江苏中圣园科技股份有限公司 | Gas nozzle |
Non-Patent Citations (1)
| Title |
|---|
| JP昭55-141708U 1980.10.09 * |
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| CN102853429A (en) | 2013-01-02 |
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