CN209893382U - Multi-section metal fiber burner - Google Patents
Multi-section metal fiber burner Download PDFInfo
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- CN209893382U CN209893382U CN201920044801.6U CN201920044801U CN209893382U CN 209893382 U CN209893382 U CN 209893382U CN 201920044801 U CN201920044801 U CN 201920044801U CN 209893382 U CN209893382 U CN 209893382U
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- 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 discloses a multistage formula metal fiber combustor, gas and air admission mix the room in advance, through fan one, fan two and splitter plate intensive mixing. The mixture is fed to the first combustion head through the injector head, and the foil releases heat in the form of infrared heat radiation. The products of the combustion of the first combustion head are conveyed into the mixing pipe of the connecting cylinder, the supplementary gas enters the rotating cylinder from the gas nozzle, the rotating cylinder rotates, and then the supplementary gas enters the mixing pipe through the pipeline to be fully mixed with the gas in the mixing pipe. The uniformly mixed gas is delivered to a second combustion head, and the metal fiber felt releases heat in an infrared heat radiation mode or a blue flame mode. The beneficial effects are that: the utility model discloses divide into the multistage burning with combustion process, the air coefficient of lean oxygen burning section is lower, has reduced the content of nitrogen oxide in the combustion products, and the carbon monoxide secondary combustion that oxygen boosting burning section produced gas and lean oxygen burning section has both make full use of gas and has reduced the content of carbon monoxide in the combustion products again.
Description
Technical Field
The utility model belongs to the technical field of the combustor technique and specifically relates to a multistage formula metal fiber combustor is related to.
Background
The theory of gas surface combustion was proposed as early as the beginning of the 20 th century, but gas infrared burners were not developed much until the 50 th century. In 1956, schwankel of german developed a porous ceramic plate gas infrared radiator which was immediately popularized and applied. In the 60 s of the 20 th century, due to the development of high-temperature metal materials, a metal gas infrared radiator appears in the United states, is quickly used for local heating or indoor heating of tall buildings, and is successfully used for overall radiation heating, so that a remarkable effect is achieved. Then, a burner made of metal fiber has been developed, which is used in food drying and textile industries due to its advantages of rapid reactivity and cooling property, shape variability, controllability of thermal expansion, etc., and has high thermal efficiency and low pollutant discharge amount.
The metal fiber burner is a full-premix blue flame type burner, takes special metal fiber as a burning surface, and has the burning intensity of 10000kw/m3The metal fiber combustion technology has the advantages of low NOx and CO emission rate, small pressure loss, high combustion efficiency, compact structure and wide load regulation ratio of thermodynamic equipment. Due to the mechanism of generation of nitrogen oxides, the higher the combustion temperature, the larger the excess air factor, which indicates the degree of excess of air, which is a value "actual air usage/theoretical air usage", generally expressed as α, the larger the amount of nitrogen oxides generated. The alpha value of a common metal fiber burner ranges from 1.05 to 1.35. The means for reducing NOx in the prior art can reduce the oxygen content by reducing alpha in the mixed fuel gas, for example, the combustion zone adopts flue gas recirculation, but needs to add an additional structure, and is difficult to implement on a small-sized combustion device. Further, reducing the α value can reduce the amount of NOx emitted, but as the α value is reduced, the amount of carbon monoxide emitted increases, so that the excess air ratio can be reduced to reduce the amount of nitrogen oxides emitted, and at the same time, the fuel efficiency can be satisfiedThe requirement of partial combustion and the reduction of the emission of carbon monoxide are problems to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve the problem among the above-mentioned background art, provide a multistage formula metal fiber combustor that reduces nitrogen oxide and carbon monoxide content in the combustion products through oxygen deficiency burning and oxygen boosting burning combination mode.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the multi-section metal fiber burner comprises an air-gas mixing device, an ignition system and a combustion head, wherein the air-gas mixing device, the ignition system and the combustion head are sequentially connected in series. The combustion head includes first combustion head and second combustion head, first combustion head and second combustion head pass through the connecting cylinder and link to each other, the connecting cylinder divide into the three-layer, the inlayer is the hybrid tube, the intermediate level is the stay tube, outmost being for rotating a section of thick bamboo, be equipped with the pipeline that is used for realizing hybrid tube and stay tube circulation between hybrid tube and the stay tube, it includes inner tube and urceolus to rotate a section of thick bamboo, inner tube and urceolus are not connected, be equipped with the fan blade between inner tube and the urceolus, the fan blade is connected with the inner tube and contactless with the urceolus, it is connected with stay tube sliding connection to rotate a section of thick bamboo, the mouth of pipe.
Preferably, the air-gas mixing device comprises an air inlet unit and a mixing unit, the air inlet unit comprises a premixing chamber, a gas storage chamber and an air filter, the premixing chamber is connected with the gas storage chamber, a first control valve is arranged between the premixing chamber and the gas storage chamber, the premixing chamber is connected with the air filter, a second control valve is arranged between the premixing chamber and the air filter, the gas storage chamber and the air filter are uniformly distributed on the premixing chamber, the outer wall of the mixing unit is a cylinder with openings at two ends, a first fan and a second fan are oppositely arranged in the cylinder, a splitter vane is arranged between the first fan and the second fan, and an outlet of the premixing chamber is connected with the first fan.
Preferably, the ignition system comprises an ignition chamber, an ignition electrode rod arranged in the ignition chamber, a heat insulation plate and a Venturi tube arranged in the heat insulation plate, wherein two electrodes of the ignition electrode rod are opposite to the inlet of the Venturi tube, the Venturi tube is made of shape memory alloy, the Venturi tube is in a Venturi tube shape at low temperature, and the Venturi tube is in a sealed shape which can not be passed by gas at high temperature.
Preferably, the first combustion head comprises a support inner pipe, a support outer pipe sleeved on the support inner pipe and a sealing metal sheet wrapping the support outer pipe, a plurality of first distribution holes are distributed in the support inner pipe, the distance between every two adjacent first distribution holes is gradually decreased from the inlet to the outlet of the first combustion head, and a plurality of first overflow holes are uniformly distributed in the support outer pipe.
Preferably, the second combustion head comprises a supporting inner cavity, a supporting outer cavity sleeved on the supporting inner cavity, and a metal fiber felt wrapping the supporting outer cavity, the supporting inner cavity and the supporting outer cavity are both of a cavity structure with a closed end at one end and an open end at one end, a plurality of second distribution hole belts are distributed on the supporting inner cavity, the distance between every two adjacent second distribution hole belts is gradually decreased from the open end to the closed end, and a plurality of second overflow holes are uniformly distributed on the supporting outer cavity.
Preferably, a first flange is arranged at the orifice of the supporting outer pipe of the first combustion head, a groove is formed in the protruding part of the first flange, a second flange is arranged at the orifice of the supporting inner pipe, the protruding part of the second flange is matched with the groove of the first flange, a third flange is arranged at the orifice of the mixing pipe of the connecting cylinder, the third flange is connected with the first flange, a fourth flange is arranged at the orifice of the supporting outer cavity of the second combustion head, a groove is formed in the protruding part of the fourth flange, a fifth flange is arranged at the orifice of the supporting inner cavity, the protruding part of the fifth flange is matched with the groove of the fourth flange, and the fifth flange is connected with the.
Preferably, one or at least one first combustion head is arranged, and adjacent first combustion heads are connected through a connecting cylinder.
Compared with the prior art, the invention has the beneficial effects that:
1. the proportion of gas and air is controlled by controlling the opening degree of the first control valve and the second control valve, the gas in the first combustion head is combusted in an oxygen-poor mode, mixed gas (gas and air) is fed into the connecting cylinder, products of the first combustion head are mixed with the mixed gas, the combustion is continued in the second combustion head, and the gas in the second combustion head is combusted in an oxygen-rich mode due to the fact that the content of the air in the mixed gas is high. The first combustion heads can be arranged in a plurality of ways, so the utility model divides the combustion process into a plurality of sections, the air coefficient of the oxygen-poor combustion section is lower, the content of nitrogen oxide in the combustion products is reduced, the oxygen-rich combustion section secondarily combusts the gas and the carbon monoxide generated by the oxygen-poor combustion section, the gas is fully utilized, and the content of the carbon monoxide in the combustion products is reduced;
2. the outer pipe is wrapped and supported by the sealing metal sheet in the first combustion head, the outer cavity is wrapped and supported by the metal fiber felt in the second combustion head, so that the first combustion head is heated in an infrared heat radiation mode, and the second combustion head is heated in an infrared heat radiation mode or a blue flame mode, so that the utility model discloses a burner combines two combustion modes of an infrared heat radiation mode and a blue flame mode, can meet the requirements of different heating temperatures;
3. after the gas and the air in the air-gas mixing device are subjected to convection primary mixing in the premixing chamber, the mixture is conveyed to the fan II after being mixed by the fan I, and small vortexes are formed by the splitter blades during the mixing, so that the air-gas mixing device performs four-step mixing on the gas and the air, and the gas reaching the first combustion head is mixed very uniformly;
4. the mixed gas is burnt in the conveying process of the combustion head, so that the mixed gas concentration of each part of the combustion head is different, the temperature of each part of the combustion head is different, the heating effect is poor, and the service life of the combustion head is shortened;
5. after the ignition electrode bar in the ignition system ignites the fuel gas in the first combustion head through the Venturi tube, the Venturi tube is heated and deformed into a closed shape through which the gas cannot pass, and the ignition chamber forms a closed space, so that the ignition electrode bar cannot be roasted by flame, the service life of the ignition electrode bar can be prolonged, and the ignition reliability of the ignition electrode bar is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a first combustion head configuration;
FIG. 3 is a cross-sectional view of the connector barrel;
FIG. 4 is a schematic view of a connector barrel configuration;
FIG. 5 is a schematic view of a second combustion head.
The reference numerals are explained below: 1. an air intake unit; 11. a premixing chamber; 12. a gas storage chamber; 13. a first control valve; 14. an air cleaner; 15. a second control valve; 2. a mixing unit; 21. a first fan; 22. a splitter plate; 23. a second fan; 3. an ignition system; 31. an ignition electrode rod; 32. a venturi tube; 33. a heat insulation plate; 4. a first combustion head; 41. a second flange; 42. the distribution hole is provided with a first hole; 43. supporting the inner pipe; 44. a first flange; 45. a metal foil; 46. supporting the outer tube; 47. a first overflow hole; 5. a connecting cylinder; 51. a rotating cylinder; 511. an outer cylinder; 512. a fan blade; 513. an inner barrel; 52. supporting a tube; 53. a mixing tube; 54. a gas jet; 55. a pipeline; 56. a third flange; 6. a second combustion head; 61. fifthly, forming a flange; 62. a second distribution hole band; 63. supporting the inner cavity; 64. fourthly, a flange; 65. a metal fiber mat; 66. a supporting outer chamber; 67. and a second overflow hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that as used in the following description, the terms "front," "back," "left," "right," "upper," and "lower" refer to directions in the drawings, and the terms "bottom" and "top," "inner," and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example 1:
as shown in fig. 1 to 5, the multi-section metal fiber burner comprises an air-gas mixing device, an ignition system 3 and a burner head, wherein the air-gas mixing device, the ignition system 3 and the burner head are sequentially connected in series. The combustion head comprises a first combustion head 4 and a second combustion head 6, the first combustion head 4 and the second combustion head 6 are connected through a connecting cylinder 5, the connecting cylinder 5 is divided into three layers, the innermost layer is a mixing pipe 53, the middle layer is a supporting pipe 52, the outermost layer is a rotating cylinder 51, a pipeline 55 for realizing the circulation of the mixing pipe 53 and the supporting pipe 52 is arranged between the mixing pipe 53 and the supporting pipe 52, the rotating cylinder 51 comprises an inner cylinder 513 and an outer cylinder 511, the inner cylinder 513 and the outer cylinder 511 are not connected with each other, fan blades 512 are arranged between the inner cylinder 513 and the outer cylinder 511, the fan blades 512 are connected with the inner cylinder 513 and are not in contact with the outer cylinder 511, the rotating cylinder 51 is in sliding connection with the supporting pipe 52, the inner cylinder 513 cannot completely cover the pipe orifice of the pipeline 55 in the. Make-up gas enters the rotary cylinder 51 from the gas nozzle 54, the rotary cylinder 51 rotates, the make-up gas is uniformly distributed to all parts of the rotary cylinder 51, and then the make-up gas enters the mixing pipe 53 through the pipeline 55 to be fully mixed with the gas in the mixing pipe 53. The structure can realize the sufficient mixing of the make-up gas and the original gas in the mixing pipe 53, and avoid the problem that the flame temperature of each part is different due to the uneven mixing of the gas of the second combustion head 6.
The air-gas mixing device comprises an air inlet unit 1 and a mixing unit 2, wherein the air inlet unit 1 comprises a premixing chamber 11, a gas storage chamber 12 and an air filter 14, the premixing chamber 11 is connected with the gas storage chamber 12, a first control valve 13 is arranged between the premixing chamber 11 and the gas storage chamber 12, the premixing chamber 11 is connected with the air filter 14, a second control valve 15 is arranged between the premixing chamber 11 and the air filter 14, the gas storage chamber 12 and the air filter 14 are uniformly distributed on the premixing chamber 11, the outer wall of the mixing unit 2 is a cylinder with openings at two ends, a first fan 21 and a second fan 23 are oppositely arranged in the cylinder, a splitter vane 22 is arranged between the first fan 21 and the second fan 23, and an outlet of the premixing chamber 11 is connected. After the gas and the air in the air-gas mixing device are subjected to convection primary mixing in the premixing chamber 11, the gas and the air are mixed by the first fan 21 and then are conveyed to the second fan 23, and small vortexes are formed by the splitter vane 22 during the mixing process and are further mixed, so that the gas and the air are mixed by the air-gas mixing device in four steps, and the gas reaching the first combustion head 4 is mixed very uniformly.
The ignition system 3 comprises an ignition chamber, an ignition electrode rod 31 arranged in the ignition chamber, a heat insulation plate 33 and a Venturi tube 32 arranged in the heat insulation plate 33, wherein two electrodes of the ignition electrode rod 31 are opposite to the inlet of the Venturi tube 32, the Venturi tube 32 is made of shape memory alloy, the shape of the Venturi tube 32 is the shape of the Venturi tube 32 at low temperature, and the Venturi tube is in a sealed shape which can not be passed by gas at high temperature. After the ignition electrode rod 31 in the ignition system 3 ignites the fuel gas in the first combustion head 4 through the venturi tube 32, the venturi tube 32 is heated and deformed into a sealed shape through which the gas cannot pass, and the ignition chamber forms a sealed space, so that the ignition electrode rod 31 cannot be burned by flame, the service life of the ignition electrode rod 31 can be prolonged, and the ignition reliability of the ignition electrode rod is improved.
The first combustion head 4 comprises a support inner pipe 43, a support outer pipe 46 sleeved on the support inner pipe 43 and a sealing metal sheet 45 wrapping the support outer pipe 46, a plurality of first distribution hole belts 42 are distributed on the support inner pipe 43, the distance between every two adjacent first distribution hole belts 42 is gradually decreased from the inlet to the outlet of the first combustion head 4, and a plurality of overflow holes 47 are uniformly distributed on the support outer pipe 46. The first combustion heads 4 can be arranged in a plurality, and the adjacent first combustion heads 4 are connected through a connecting cylinder 5. The second combustion head 6 comprises a supporting inner cavity 63, a supporting outer cavity 66 sleeved on the supporting inner cavity 63 and a metal fiber felt 65 wrapping the supporting outer cavity 66, the supporting inner cavity 63 and the supporting outer cavity 66 are both of a cavity structure with one end provided with a closed end and the other end provided with an open end, a plurality of second distribution hole belts 62 are distributed on the supporting inner cavity 63, the distance between the two adjacent second distribution hole belts 62 is gradually decreased from the open end to the closed end, and a plurality of second overflow holes 67 are uniformly distributed on the supporting outer cavity 66. The mist has carried out the burning in the combustion head transportation process, and consequently each partial combustion head mist concentration is different, and this temperature that can lead to each partial combustion head is different, and the heating effect is not good and the combustion head life-span can shorten, the utility model discloses a set up the different distribution hole area of interval on the combustion head, adjust the mist throughput of each partial combustion head, then the mist that passes through overflows from evenly distributed's overflow hole again to the mist outflow that realizes each partial combustion head is the same, and the combustion temperature of each partial combustion head is even. The proportion of the gas and the air is controlled by controlling the opening degree of the first control valve 13 and the second control valve 15, the gas in the first combustion head 4 is combusted in oxygen-poor mode, the connecting cylinder 5 feeds mixed gas (gas and air), the product of the first combustion head 4 is mixed with the mixed gas, the combustion is continued in the second combustion head 6, and the gas in the second combustion head 6 is combusted in oxygen-rich mode due to the fact that the content of the air in the mixed gas is high. First combustion head 4 can set up a plurality ofly, consequently the utility model discloses divide into the multistage burning with the combustion process, the air coefficient of lean oxygen burning section is lower, has reduced the content of nitrogen oxide in the combustion products, and the carbon monoxide secondary combustion that oxygen boosting burning section produced gas and lean oxygen burning section, the content of carbon monoxide in not only make full use of gas but also reduced the combustion products. What the outer tube 46 was supported in the parcel in the first combustion head 4 is sealed foil 45, what the outer chamber 66 was supported in the parcel in the second combustion head 6 is metal fiber felt 65, so the heating methods of first combustion head 4 is infrared heat radiation mode, and the heating methods of second combustion head 6 is infrared heat radiation mode or blue flame mode, consequently the utility model discloses two kinds of combustion methods of infrared heat radiation mode and blue flame mode are combined to the combustor, can satisfy different heating temperature's demand simultaneously.
The pipe orifice of the supporting outer pipe 46 of the first combustion head 4 is provided with a first flange 44, the convex part of the first flange 44 is provided with a groove, the pipe orifice of the supporting inner pipe 43 is provided with a second flange 41, the convex part of the second flange 41 is matched with the groove of the first flange 44, the pipe orifice of the mixing pipe 53 of the connecting cylinder 5 is provided with a third flange 56, the third flange 56 is connected with the first flange 44, the orifice of the supporting outer cavity 66 of the second combustion head 6 is provided with a fourth flange 64, the convex part of the fourth flange 64 is provided with a groove, the orifice of the supporting inner cavity 63 is provided with a fifth flange 61, the convex part of the fifth flange 61 is matched with the groove of the fourth flange 64, and the fifth flange 61 is connected with. The flange structure has good sealing performance and can bear larger gas pressure.
The working principle is as follows: gas enters the premixing chamber 11 from the gas storage chamber 12 through the first control valve 13, air enters the premixing chamber 11 from the air filter 14 through the second control valve 15, and the gas and the air form convection to be primarily mixed. The mixed gas (fuel gas and air) is mixed by the first fan 21 and then is conveyed to the second fan 23, and small vortex is formed by the mixed gas passing through the splitter plate 22 during the period, so that the mixed gas is further mixed. The mixed gas is mixed and then is conveyed to the first combustion head 4 through an injection head (which is common knowledge in the field and therefore is not described in detail herein), the ignition electrode rod 31 in the ignition system 3 ignites the gas in the first combustion head 4 through the venturi tube 32, the venturi tube 32 is heated and deformed into a closed shape through which the gas cannot pass, and the ignition chamber forms a closed space. The mixed gas sequentially passes through the distribution hole belts I42 with different intervals and the overflow holes I47 which are uniformly distributed, the mixed gas is uniformly combusted above the overflow holes I47, the metal sheet 45 is heated, and the metal sheet 45 is heated to an incandescence state and then releases heat in an infrared heat radiation mode. The products of combustion of the first combustion head 4 are delivered to the mixing pipe 53 of the connecting cylinder 5, the supplementary gas enters the rotating cylinder 51 from the gas nozzle 54, the rotating cylinder 51 rotates, the supplementary gas is uniformly distributed to all parts of the rotating cylinder 51, and then the supplementary gas enters the mixing pipe 53 through the pipeline 55 to be fully mixed with the gas in the mixing pipe 53. The mixed gas is conveyed to the second combustion head 6 uniformly, the mixed gas sequentially passes through the second distribution hole belt 62 with different intervals, the second overflow holes 67 uniformly distributed and the metal fiber felt 65, and the mixed gas is combusted on the surface of the metal fiber felt 65 and releases heat in an infrared heat radiation mode or a blue flame mode. The proportion of the gas and the air is controlled by controlling the opening degree of the first control valve 13 and the second control valve 15, the gas in the first combustion head 4 is combusted in oxygen-poor mode, the connecting cylinder 5 feeds mixed gas (gas and air), the product of the first combustion head 4 is mixed with the mixed gas, the combustion is continued in the second combustion head 6, and the gas in the second combustion head 6 is combusted in oxygen-rich mode due to the fact that the content of the air in the mixed gas is high. First combustion head 4 can set up a plurality ofly, consequently the utility model discloses divide into the multistage burning with the combustion process, the air coefficient of lean oxygen burning section is lower, has reduced the content of nitrogen oxide in the combustion products, and the carbon monoxide secondary combustion that oxygen boosting burning section produced gas and lean oxygen burning section, the content of carbon monoxide in not only make full use of gas but also reduced the combustion products.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (6)
1. The multi-section metal fiber burner comprises an air-gas mixing device, an ignition system (3) and a burner, wherein the air-gas mixing device, the ignition system (3) and the burner are sequentially connected in series, and the burner is characterized in that the burner comprises a first burner (4) and a second burner (6), the first burner (4) and the second burner (6) are connected through a connecting cylinder (5), the connecting cylinder (5) is divided into three layers, the innermost layer is a mixing pipe (53), the middle layer is a supporting pipe (52), the outermost layer is a rotating cylinder (51), a pipeline (55) for realizing the circulation of the mixing pipe (53) and the supporting pipe (52) is arranged between the mixing pipe (53) and the supporting pipe (52), the rotating cylinder (51) comprises an inner cylinder (513) and an outer cylinder (511), and the inner cylinder (513) and the outer cylinder (511) are not connected with each other, the fan blade (512) is arranged between the inner cylinder (513) and the outer cylinder (511), the fan blade (512) is connected with the inner cylinder (513) and is not in contact with the outer cylinder (511), the rotating cylinder (51) is in sliding connection with the supporting pipe (52), the inner cylinder (513) cannot completely cover the pipe orifice of the pipeline (55) in the rotating process, and the outer cylinder (511) is provided with a gas nozzle (54).
2. The multi-section metal fiber burner according to claim 1, wherein the air-gas mixing device comprises an air inlet unit (1) and a mixing unit (2), the air inlet unit (1) comprises a premixing chamber (11), a gas storage chamber (12) and an air filter (14), the premixing chamber (11) is connected with the gas storage chamber (12) and a first control valve (13) is arranged between the premixing chamber and the gas storage chamber, the premixing chamber (11) is connected with the air filter (14) and a second control valve (15) is arranged between the premixing chamber and the air filter, the gas storage chamber (12) and the air filter (14) are uniformly distributed on the premixing chamber (11), the outer wall of the mixing unit (2) is a cylinder with openings at two ends, a first fan (21) and a second fan (23) are oppositely arranged in the cylinder, and a splitter plate (22) is arranged between the first fan (21) and the second fan (23), the outlet of the premixing chamber (11) is connected with the first fan (21).
3. The multi-sectional type metal fiber burner of claim 1, wherein the ignition system (3) comprises an ignition chamber, an ignition electrode rod (31) disposed in the ignition chamber, a heat insulation plate (33), and a venturi tube (32) disposed in the heat insulation plate (33), two electrodes of the ignition electrode rod (31) are opposite to an inlet of the venturi tube (32), the venturi tube (32) is made of shape memory alloy, the venturi tube (32) is shaped as a venturi tube (32) at low temperature, and the venturi tube is sealed at high temperature, so that gas cannot pass through the venturi tube.
4. The multi-section metal fiber burner according to claim 1, wherein the first burner head (4) comprises a supporting inner tube (43), a supporting outer tube (46) sleeved on the supporting inner tube (43), and a sealing foil (45) wrapping the supporting outer tube (46), a plurality of first distribution holes (42) are distributed on the supporting inner tube (43), the distance between two adjacent first distribution holes (42) decreases from the inlet to the outlet of the first burner head (4), a plurality of overflow holes (47) are uniformly distributed on the supporting outer tube (46),
the second combustion head (6) comprises a supporting inner cavity (63), a supporting outer cavity (66) sleeved on the supporting inner cavity (63) and a metal fiber felt (65) wrapping the supporting outer cavity (66), the supporting inner cavity (63) and the supporting outer cavity (66) are both of a cavity structure with one end provided with a closed end and the other end provided with an open end, a plurality of distribution hole belts II (62) are distributed on the supporting inner cavity (63), the distance between every two adjacent distribution hole belts II (62) is gradually decreased from the open end to the closed end, and a plurality of overflow hole belts II (67) are uniformly distributed on the supporting outer cavity (66).
5. The multi-section metal fiber burner according to claim 4, wherein the orifice of the outer support tube (46) of the first burner head (4) is provided with a first flange (44), the convex portion of the first flange (44) is provided with a groove, the orifice of the inner support tube (43) is provided with a second flange (41), the convex portion of the second flange (41) is matched with the groove of the first flange (44), the orifice of the mixing tube (53) of the connecting cylinder (5) is provided with a third flange (56), the third flange (56) is connected with the first flange (44), the orifice of the outer support cavity (66) of the second burner head (6) is provided with a fourth flange (64), the convex portion of the fourth flange (64) is provided with a groove, the orifice of the inner support cavity (63) is provided with a fifth flange (61), the convex portion of the fifth flange (61) is matched with the groove of the fourth flange (64), the flange five (61) is connected with the flange three (56) of the nozzle of the mixing pipe (53) of the connecting cylinder (5).
6. The multi-section metal fiber burner according to claim 1 or 4, wherein one or at least one of the first burner heads (4) is provided, and adjacent first burner heads (4) are connected through a connecting cylinder (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920044801.6U CN209893382U (en) | 2019-01-10 | 2019-01-10 | Multi-section metal fiber burner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920044801.6U CN209893382U (en) | 2019-01-10 | 2019-01-10 | Multi-section metal fiber burner |
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| CN209893382U true CN209893382U (en) | 2020-01-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288448A (en) * | 2020-03-20 | 2020-06-16 | 东营富润智能科技有限公司 | Ultralow nitrogen burner for oil field heating furnace |
| CN112050204A (en) * | 2020-09-18 | 2020-12-08 | 中自环保科技股份有限公司 | Low-nitrogen combustor |
| CN117109930A (en) * | 2023-10-23 | 2023-11-24 | 中国空气动力研究与发展中心空天技术研究所 | Multipath parameter adjustment direct-connected test platform under low total temperature condition |
-
2019
- 2019-01-10 CN CN201920044801.6U patent/CN209893382U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288448A (en) * | 2020-03-20 | 2020-06-16 | 东营富润智能科技有限公司 | Ultralow nitrogen burner for oil field heating furnace |
| CN111288448B (en) * | 2020-03-20 | 2022-03-29 | 东营富润智能科技有限公司 | Ultralow nitrogen burner for oil field heating furnace |
| CN112050204A (en) * | 2020-09-18 | 2020-12-08 | 中自环保科技股份有限公司 | Low-nitrogen combustor |
| CN117109930A (en) * | 2023-10-23 | 2023-11-24 | 中国空气动力研究与发展中心空天技术研究所 | Multipath parameter adjustment direct-connected test platform under low total temperature condition |
| CN117109930B (en) * | 2023-10-23 | 2023-12-26 | 中国空气动力研究与发展中心空天技术研究所 | Multipath parameter adjustment direct-connected test platform under low total temperature condition |
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