CN103557524B - Minitype swirl premixed regenerative catalytic combustion reactor - Google Patents
Minitype swirl premixed regenerative catalytic combustion reactor Download PDFInfo
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- CN103557524B CN103557524B CN201310587858.8A CN201310587858A CN103557524B CN 103557524 B CN103557524 B CN 103557524B CN 201310587858 A CN201310587858 A CN 201310587858A CN 103557524 B CN103557524 B CN 103557524B
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- accumulating type
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Abstract
The invention discloses a minitype swirl premixed regenerative catalytic combustion reactor. The catalytic combustion reactor comprises an external cylinder, an upper panel, a porous panel and a U-shaped panel, wherein the upper panel and the U-shaped panel form a cavity with the rectangular cross section; the porous panel is arranged at one end of the cavity; the cavity is formed in the external cylinder; four upper regenerative columns, which vertically extend into the cavity downwards, are arranged on the upper panel; six lower regenerative columns vertically arranged upwards and staggered with the upper regenerative columns are arranged on a lower bottom plate of the U-shaped panel; two air inlets and two fuel gas inlets are formed in the external cylinder in the tangential direction of the circumference; an outwards protruded air outlet is formed in the center of a left side panel. The external cylinder, the porous panel and the cavity are combined to form an airflow premixed passage to avoid the direct contact between the high temperature wall surface of a combustion chamber and the environment and reduce the heat loss; meanwhile, the high temperature wall surface of the cavity can preheat the premixed gas to increase the initial temperature of the premixed gas and reduce the ignition difficulty of the gas.
Description
Technical field
The present invention relates to a kind of reactor being applicable to gas catalytic combustion, particularly relate to the miniature catalytic combustion reactor of a kind of swirl-flow premixed heat accumulating type.
Background technology
The energy utilization patterns the most extensively adopted in productive life to the energy-producing utilization of fuel combustion.Along with the development of science and technology, the application of micromachine is more and more subject to the attention of scientific worker.The micro-scale burner of current research is generally lower than 1cm
3volume in occur.Micro-scale burner have cheap, the pot-life is longer, can provide more stable voltage, energy density is high and again add the advantages such as fuel is convenient.The research of micro-scale burner is wished to solve the problem into portable electronic device supply long-time stable power supply, but except the application of this one side, micro-scale gas flow also has an important applied field, and that is exactly the application in following national defence.Fight in minute vehicle, micro-satellite, modern war soldier, and these all require high performance power, electric power support.Address these problems that, quality little in the urgent need to volume is light, energy and the high energy supplyystem of power density, but also there is no suitable energy resource supply mode at present.And based on the microkinetic energy resource system of micro-scale gas flow, there is very high energy density, be acknowledged as a kind of the most promising method addressed these problems at present.But present stage, micro-scale burner also has following not enough: one, heat radiation is serious; Two, gas pre-mixed conjunction is abundant not; Three, because burner dimensions is too little, the time of staying is short, and response area is too little causes reaction fully not occur, and efficiency of combustion is too low; Four, structure of reactor is complicated, and difficulty of processing is too large.
Summary of the invention
For above shortcomings in prior art, the invention provides a kind of easy to connect with source of the gas, reduce radiation loss and can make tiny flow quantity gas that the miniature catalytic combustion reactor of swirl-flow premixed heat accumulating type of catalyst combustion reaction rapidly and efficiently occurs.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
The miniature catalytic combustion reactor of swirl-flow premixed heat accumulating type, comprises the U-shaped panel that exterior cylinder, top panel, porous panel and cross section are U-shaped;
Described top panel is arranged on the top open part of U-shaped panel, and top panel and U-shaped panel form the rectangular cavity of a cross section, and described porous panel is arranged on one end of cavity, and the aperture of described porous panel increases gradually in the middle of four circumferences; Described cavity arranges in exterior cylinder, the plate face of described top panel and U-shaped panel and the axis being parallel of exterior cylinder; One end of described exterior cylinder arranges right panel, and the other end arranges Left-Hand Panel, described porous panel near right panel and and there is between right panel a gap;
Described top panel is furnished with four upper heat accumulating type cylinders stretched to straight down in cavity, the lower shoe of described U-shaped panel is provided with six straight up and the lower heat accumulating type cylinder staggered with upper heat accumulating type cylinder; The height of described upper heat accumulating type cylinder and lower heat accumulating type cylinder is all less than the distance between the lower shoe of top panel and U-shaped panel;
The inwall of described top panel, U-shaped panel and porous panel, and the equal coated catalysts of outer wall of upper heat accumulating type cylinder and lower heat accumulating type cylinder; Described exterior cylinder circumferentially tangential direction is furnished with four inlet channels, and two inlet channels that wherein exterior cylinder is symmetrical are relatively air inlet, and two other is gas inlet; The center of described Left-Hand Panel arrange outwardly and with the gas outlet communicated in cavity.
As a preferred embodiment of the present invention, described upper heat accumulating type cylinder and lower heat accumulating type cylinder are made by heat accumulating type material.
Compared with prior art, tool has the following advantages the miniature catalytic combustion reactor of swirl-flow premixed heat accumulating type of the present invention:
1, air-flow premixed channel is combined into exterior cylinder, porous panel and cavity, the high-temperature wall surface of combustion chamber can be avoided directly to contact with environment, reduce thermal loss, simultaneously the high-temperature wall surface of cavity can preheating premixed gas, improve the initial temperature of premixed gas, gas igniting difficulty can be reduced.
2, inlet channel is arranged along exterior cylinder tangential direction, and combustion gas and air enter gas channel along the tangential direction of exterior cylinder, can form swirling eddy, increase premixing effect, extend gas motion path, also increase the distance between inlet duct simultaneously, make the connection of pipeline convenient.
3, the aperture of the porous panel of cavity one end increases gradually in the middle of four circumferences, can reduce the inhomogeneities of distribution of gas in combustion chamber.
4, the inwall of cavity and porous panel, and the equal coated catalysts of outer wall of upper heat accumulating type cylinder and lower heat accumulating type cylinder, improve combustion stability and efficiency of combustion.
5, upper heat accumulating type cylinder and lower heat accumulating type cylinder adopt heat accumulating type material, and the partial heat discharged when energy effective saving combustion reaction is violent, avoids causing catalyst high temperature deactivation because cavity inner wall temperature is too high; By release savings heat improve burning when temperature reduces in burner simultaneously, play the effect of steady combustion and overheavy firing, efficiency of combustion is improved.
6, the existence of exterior cylinder adds catalysis wall surface area, and simultaneously exterior cylinder also plays the effect of bluff body flow-disturbing, extends the reaction time and strengthens the mixed effect of air and combustion gas, improve reaction efficiency, be conducive to the size of reduction microburner.
Accompanying drawing explanation
Fig. 1 is the top view of the miniature catalytic combustion reactor of swirl-flow premixed heat accumulating type;
Fig. 2 is the cross section view of the miniature catalytic combustion reactor of swirl-flow premixed heat accumulating type along A-A direction;
Fig. 3 is the cross section view of the miniature catalytic combustion reactor of swirl-flow premixed heat accumulating type along B-B direction;
Fig. 4 is the left view of the miniature catalytic combustion reactor of swirl-flow premixed heat accumulating type.
In accompanying drawing: 1-exterior cylinder; 2-top panel; 3-U profile plate; 4-porous panel; The upper heat accumulating type cylinder of 5-; Heat accumulating type cylinder under 6-; 7-Left-Hand Panel; 81-air inlet; 82-gas inlet; 9-gas outlet.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1,2,3, 4, the miniature catalytic combustion reactor of swirl-flow premixed heat accumulating type, comprises the U-shaped panel 3 that exterior cylinder 1, top panel 2, porous panel 4 and cross section are U-shaped.
Top panel 2 is arranged on the top open part of U-shaped panel 3, top panel 2 and U-shaped panel 3 form the rectangular cavity of a cross section, edges and corners in cavity are arc transition, effectively can reduce the flow resistance of premixed flow, porous panel 4 is arranged on one end of cavity, porous panel 4 there is the circular hole that a lot of size is different, the aperture of porous panel 4 increases gradually in the middle of four circumferences, the change in aperture effectively can regulate the uneven of different parts gas density in combustion chamber, reduces because gas flow rate is uneven to the harmful effect brought of burning.Cavity arranges in exterior cylinder 1, the plate face of top panel 2 and U-shaped panel 3 and the axis being parallel of exterior cylinder 1.One end of exterior cylinder 1 arranges right panel, and the other end arranges Left-Hand Panel 7, and porous panel 4 is near right panel and and have a gap between right panel.
Top panel 2 is furnished with four upper heat accumulating type cylinders 5 stretched to straight down in cavity, the lower shoe of U-shaped panel 3 is provided with six straight up and identical with the size material of six lower heat accumulating type cylinders 6 with the upper heat accumulating type cylinder 5 of staggered 6, four, the lower heat accumulating type cylinder of upper heat accumulating type cylinder 5.The height of upper heat accumulating type cylinder 5 and lower heat accumulating type cylinder 6 is all less than the distance between the lower shoe of top panel 2 and U-shaped panel 3.Upper heat accumulating type cylinder 5 and lower heat accumulating type cylinder 6 are made by heat accumulating type material.Upper heat accumulating type cylinder 5 and lower heat accumulating type cylinder 6 not only can increase the disturbance of mist, extend the time of staying, and itself institute save heat can when ignition temperature is lower release portion heat, improve steady fuel efficiency really.
The inwall of top panel 2, U-shaped panel 3 and porous panel 4, and the equal coated catalysts of outer wall of upper heat accumulating type cylinder 5 and lower heat accumulating type cylinder 6.Exterior cylinder 1 circumferentially tangential direction is furnished with four inlet channels, two inlet channels that wherein exterior cylinder 1 is symmetrical are relatively air inlet 81, two other is gas inlet 82, this kind of air inlet and source of the gas easy to connect, effectively solve and simplify air admission hole be connected with source of the gas difficulty problem.The center of Left-Hand Panel 7 arrange outwardly and with the gas outlet 9 communicated in cavity.
Rotational flow gas premixed channel is formed between exterior cylinder 1 and cavity, make Incoming gas along gas passage rotational flow, effective prolongation gas flow paths, increase and do time in advance, the high-temperature wall surface of cavity can be utilized to carry out preheating to premixed gas simultaneously, improve the initial temperature of premixed combustion gas, reduce igniting difficulty; And between the top panel 2 of cavity and U-shaped panel 3, forming combustion chamber, upper heat accumulating type cylinder 5 and lower heat accumulating type cylinder 6 add combustion surfacearea, and strengthen combustion gas mixing disturbance, contribute to the stability strengthening micro-scale burner flame, improve efficiency of combustion.
When using the miniature catalytic combustion reactor of this swirl-flow premixed heat accumulating type, first the air inlet 81 of exterior cylinder 1 is connected with corresponding source of the gas respectively with gas inlet 82, gas forms rotary premixed air-flow in gas channel, heat can be absorbed by the high-temperature wall surface of cavity simultaneously, improve the initial temperature of burning gases, then the mist after preheating enters combustion chamber by porous panel 4, under the effect of upper heat accumulating type cylinder 5 and lower heat accumulating type cylinder 6 hybrid perturbation and catalyst, catalyst combustion reaction occurs, and the gas that reaction produces is discharged from gas outlet 9.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (2)
1. the miniature catalytic combustion reactor of swirl-flow premixed heat accumulating type, is characterized in that: comprise the U-shaped panel (3) that exterior cylinder (1), top panel (2), porous panel (4) and cross section are U-shaped;
Described top panel (2) is arranged on the top open part of U-shaped panel (3), top panel (2) and U-shaped panel (3) form the rectangular cavity of a cross section, described porous panel (4) is arranged on one end of cavity, and the aperture of described porous panel (4) increases gradually in the middle of four circumferences; Described cavity is arranged in exterior cylinder (1), the plate face of described top panel (2) and U-shaped panel (3) and the axis being parallel of exterior cylinder (1); One end of described exterior cylinder (1) arranges right panel, and the other end arranges Left-Hand Panel (7), described porous panel (4) near right panel and and there is between right panel a gap;
Described top panel (2) is furnished with four upper heat accumulating type cylinders (5) of stretching to straight down in cavity, the lower shoe of described U-shaped panel (3) is provided with six straight up and the lower heat accumulating type cylinder (6) staggered with upper heat accumulating type cylinder (5); The height of described upper heat accumulating type cylinder (5) and lower heat accumulating type cylinder (6) is all less than the distance between the lower shoe of top panel (2) and U-shaped panel (3);
The inwall of described top panel (2), U-shaped panel (3) and porous panel (4), and the equal coated catalysts of outer wall of upper heat accumulating type cylinder (5) and lower heat accumulating type cylinder (6); Described exterior cylinder (1) circumferentially tangential direction is furnished with four inlet channels, and two inlet channels that wherein exterior cylinder (1) is symmetrical are relatively air inlet (81), and two other is gas inlet (82); The center of described Left-Hand Panel (7) arrange outwardly and with the gas outlet communicated in cavity (9).
2. the miniature catalytic combustion reactor of swirl-flow premixed heat accumulating type according to claim 1, is characterized in that: described upper heat accumulating type cylinder (5) and lower heat accumulating type cylinder (6) are made by heat accumulating type material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310587858.8A CN103557524B (en) | 2013-11-21 | 2013-11-21 | Minitype swirl premixed regenerative catalytic combustion reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310587858.8A CN103557524B (en) | 2013-11-21 | 2013-11-21 | Minitype swirl premixed regenerative catalytic combustion reactor |
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| Publication Number | Publication Date |
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| CN103557524A CN103557524A (en) | 2014-02-05 |
| CN103557524B true CN103557524B (en) | 2015-07-15 |
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| CN201310587858.8A Expired - Fee Related CN103557524B (en) | 2013-11-21 | 2013-11-21 | Minitype swirl premixed regenerative catalytic combustion reactor |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154542A (en) * | 2014-09-02 | 2014-11-19 | 中冶华天工程技术有限公司 | Combustion device with heat exchange function |
| CN110893332B (en) * | 2018-09-13 | 2022-05-10 | 中国石油天然气集团有限公司 | Catalyst basket and oxidation-reduction reaction device |
| CN113357628B (en) * | 2021-05-25 | 2024-03-19 | 江苏大学 | Baffling type automatic ignition miniature catalytic combustor |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51133108A (en) * | 1975-05-15 | 1976-11-18 | Nippon Kokan Kk <Nkk> | A swirl burner for hot stoves |
| JPH04118042A (en) * | 1990-06-01 | 1992-04-20 | Toyo Eng Corp | Heating apparatus |
| JP3504777B2 (en) * | 1995-06-14 | 2004-03-08 | 株式会社三浦研究所 | Liquid fuel vaporizer |
| JP2005103399A (en) * | 2003-09-29 | 2005-04-21 | Casio Comput Co Ltd | Reaction apparatus and reaction method |
| CN100538176C (en) * | 2005-11-04 | 2009-09-09 | 浙江大学 | Micro-internal mixed catalytic burner |
| EP2066973A1 (en) * | 2007-03-30 | 2009-06-10 | Corning Incorporated | Three dimensional micro-fabricated burners |
| CN201547781U (en) * | 2009-12-16 | 2010-08-11 | 重庆大学 | Burning chamber of miniature burner |
| CN101737780A (en) * | 2009-12-16 | 2010-06-16 | 重庆大学 | Miniature premix catalytic reforming combustor |
| CN202470062U (en) * | 2012-03-05 | 2012-10-03 | 罗江平 | Bottom-feeding type biomass gas combustion engine |
| CN103090386A (en) * | 2013-01-21 | 2013-05-08 | 江苏大学 | Catalytic mini-burner |
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