CN103557524A - Minitype swirl premixed regenerative catalytic combustion reactor - Google Patents
Minitype swirl premixed regenerative catalytic combustion reactor Download PDFInfo
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- CN103557524A CN103557524A CN201310587858.8A CN201310587858A CN103557524A CN 103557524 A CN103557524 A CN 103557524A CN 201310587858 A CN201310587858 A CN 201310587858A CN 103557524 A CN103557524 A CN 103557524A
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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 that is applicable to gas catalytic combustion, relate in particular to the miniature catalytic combustion reactor of a kind of swirl-flow premixed heat accumulating type.
Background technology
To the energy-producing utilization of fuel combustion, be the energy utilization patterns that the most extensively adopt in productive life.Along with scientific and technical development, the application of micromachine is more and more subject to scientific worker's attention.At present the micro-scale burner of research is generally lower than 1cm
3volume in occur.That micro-scale burner has is cheap, the pot-life is longer, can provide more stable voltage, energy density high and again add the advantages such as fuel is convenient.The research of micro-scale burner is wished to solve the problem into the long-time stabilized power source of portable electronic device supply, but except this application on the one hand, minute yardstick burning also has an important applied field, and that is exactly the application aspect following national defence.The soldier that fights in minute vehicle, micro-satellite, modern war, 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 the microkinetic energy resource system burning based on minute yardstick has very high energy density, be acknowledged as at present a kind of the most promising method addressing these problems.But present stage, micro-scale burner also has following not enough: one, heat radiation is serious; Two, gas pre-mixed close 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 and source of the gas easy to connect, 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, the present invention has adopted following technical scheme:
The miniature catalytic combustion reactor of swirl-flow premixed heat accumulating type, comprises that exterior cylinder, top panel, porous panel and cross section are U-shaped U-shaped panel;
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 to centre gradually from surrounding; Described cavity arranges in exterior cylinder, and the plate face of described top panel and U-shaped panel is parallel with the axis 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 right panel between there is a gap;
On described top panel, be furnished with four upper heat accumulating type cylinders that stretch to straight down in cavity, on the lower shoe of described U-shaped panel, be 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 top panel and the lower shoe of 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 is along being furnished with four inlet channels in tangent to periphery direction, wherein two symmetrical inlet channels of exterior cylinder are air inlet relatively, and two other is gas inlet; The center of described Left-Hand Panel arrange outwardly and with the gas outlet communicating 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, with exterior cylinder, porous panel and cavity, be combined into air-flow premixed channel, can avoid the high-temperature wall surface of combustion chamber 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, can reduce gas igniting difficulty.
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 strengthened the distance between inlet duct, make the connection of pipeline convenient simultaneously.
3, the aperture of the porous panel of cavity one end increases to centre gradually from surrounding, 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 part heat that energy effective saving combustion reaction discharges when violent, avoids because cavity inner wall excess Temperature causes catalyst high temperature deactivation; When temperature reduces in burner, can save heat by release simultaneously and improve burning, play the effect of steady combustion and overheavy firing, efficiency of combustion is improved.
6, the existence of exterior cylinder has increased catalysis wall surface area, and exterior cylinder also plays the effect of bluff body flow-disturbing simultaneously, has extended the reaction time and has strengthened air and the mixed effect of combustion gas, has improved reaction efficiency, is conducive to reduce the size of 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 that the miniature catalytic combustion reactor of swirl-flow premixed heat accumulating type is along the cross section view of A-A direction;
Fig. 3 is that the miniature catalytic combustion reactor of swirl-flow premixed heat accumulating type is along the cross section view of 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.
The specific embodiment
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 that exterior cylinder 1, top panel 2, porous panel 4 and cross section are U-shaped U-shaped panel 3.
On top panel 2, be furnished with four upper heat accumulating type cylinders 5 that stretch to straight down in cavity, on the lower shoe of U-shaped panel 3, be provided with six straight up and identical with the size materials of 6, four upper heat accumulating type cylinders 5 of the staggered lower heat accumulating type cylinder of upper heat accumulating type cylinder 5 and six lower heat accumulating type cylinders 6.The height of upper heat accumulating type cylinder 5 and lower heat accumulating type cylinder 6 is all less than the distance between top panel 2 and the lower shoe of 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's heat of saving can be in the situation that ignition temperature be 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 is along being furnished with four inlet channels in tangent to periphery direction, wherein two symmetrical inlet channels of exterior cylinder 1 are air inlet 81 relatively, two other is gas inlet 82, this kind of air inlet and source of the gas are easy to connect, effectively solve and simplified air admission hole to be connected difficult problem with source of the gas.The center of Left-Hand Panel 7 arrange outwardly and with the gas outlet 9 communicating in cavity.
Between exterior cylinder 1 and cavity, form rotational flow gas premixed channel, make incoming flow gas along gas passage rotational flow, effectively extend gas flow paths, increase and do time in advance, can utilize the high-temperature wall surface of cavity 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 have increased combustion surfacearea, and have strengthened combustion gas mixing disturbance, contribute to strengthen the stability of flame in micro-scale burner, improve efficiency of combustion.
While using the miniature catalytic combustion reactor of this swirl-flow premixed heat accumulating type, first the air inlet of exterior cylinder 1 81 is connected with corresponding source of the gas respectively with gas inlet 82, gas forms rotary premixed air-flow in gas channel, can absorb heat 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 perturbations and catalyst, catalyst combustion reaction occurs, and the gas that reaction produces is 9 discharges from gas outlet.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (2)
1. the miniature catalytic combustion reactor of swirl-flow premixed heat accumulating type, is characterized in that: comprise that exterior cylinder (1), top panel (2), porous panel (4) and cross section are U-shaped U-shaped panel (3);
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 to centre gradually from surrounding; Described cavity arranges in exterior cylinder (1), and the plate face of described top panel (2) and U-shaped panel (3) is parallel with the axis 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 right panel between there is a gap;
On described top panel (2), be furnished with four upper heat accumulating type cylinders (5) that stretch to straight down in cavity, on the lower shoe of described U-shaped panel (3), be 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 top panel (2) and the lower shoe of 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) is along being furnished with four inlet channels in tangent to periphery direction, wherein two symmetrical inlet channels of exterior cylinder (1) are air inlet (81) relatively, and two other is gas inlet (82); The center of described Left-Hand Panel (7) arrange outwardly and with the gas outlet communicating 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.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310587858.8A CN103557524B (en) | 2013-11-21 | 2013-11-21 | Minitype swirl premixed regenerative catalytic combustion reactor |
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| CN201310587858.8A CN103557524B (en) | 2013-11-21 | 2013-11-21 | Minitype swirl premixed regenerative catalytic combustion reactor |
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| CN103557524A true CN103557524A (en) | 2014-02-05 |
| CN103557524B CN103557524B (en) | 2015-07-15 |
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Cited By (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 |
| CN110893332A (en) * | 2018-09-13 | 2020-03-20 | 中国石油天然气集团有限公司 | Catalyst basket and oxidation-reduction reaction device |
| CN113357628A (en) * | 2021-05-25 | 2021-09-07 | 江苏大学 | Baffling type automatic ignition micro catalytic combustor |
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| JPH04118042A (en) * | 1990-06-01 | 1992-04-20 | Toyo Eng Corp | Heating apparatus |
| JPH08338614A (en) * | 1995-06-14 | 1996-12-24 | Miura Kenkyusho:Kk | Liquid fuel vaporization apparatus |
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Cited By (5)
| 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 |
| CN110893332A (en) * | 2018-09-13 | 2020-03-20 | 中国石油天然气集团有限公司 | Catalyst basket and oxidation-reduction reaction device |
| 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 |
| CN113357628A (en) * | 2021-05-25 | 2021-09-07 | 江苏大学 | Baffling type automatic ignition micro catalytic combustor |
| CN113357628B (en) * | 2021-05-25 | 2024-03-19 | 江苏大学 | Baffling type automatic ignition miniature catalytic combustor |
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| CN103557524B (en) | 2015-07-15 |
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