CN104696137B - A kind of vehicle-carried microwave reformer plasma ignition device - Google Patents
A kind of vehicle-carried microwave reformer plasma ignition device Download PDFInfo
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- CN104696137B CN104696137B CN201510063440.6A CN201510063440A CN104696137B CN 104696137 B CN104696137 B CN 104696137B CN 201510063440 A CN201510063440 A CN 201510063440A CN 104696137 B CN104696137 B CN 104696137B
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- microwave
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- reaction chamber
- electromagnetic field
- reaction tube
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P23/00—Other ignition
- F02P23/04—Other physical ignition means, e.g. using laser rays
- F02P23/045—Other physical ignition means, e.g. using laser rays using electromagnetic microwaves
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- Engineering & Computer Science (AREA)
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- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Plasma Technology (AREA)
Abstract
The present invention has designed and developed a kind of vehicle-carried microwave reformer plasma ignition device, comprise reaction chamber, Microwave Power Tubes, microwave plasma reaction tube, microwave electromagnetic field induction discharge loop, on reaction chamber, be also provided with air inlet, in this device, be also provided with upper cover. Microwave Power Tubes is assemblied in reaction chamber and covers and go deep into reaction chamber inside, can be to launched microwave in reaction chamber, be made up of a wire coil with opening in microwave electromagnetic field induction discharge loop, under microwave magnetic field effect, produce induced electromotive force electric discharge, thereby the air mixture in described microwave plasma reaction tube is punctured. The present invention originates as microwave by semiconductor microwave power tube, be easy to form high voltage at discharge loop firing tip, and microwave power is adjustable, can carry out continual and steady reforming plasma. The present invention also have volume little, do not need high-tension electricity, the electric discharge advantages such as demand power is low, safe and efficient, with low cost.
Description
Technical field
The present invention relates to microwave electromagnetic induction technology, particularly a kind of vehicle-carried microwave reformer etc.Ion ignition device.
Background technology
Microwave plasma igniting has very large difference, traditional electric spark with traditional spark ignitionIgniting relies on up to ten thousand volts of voltages of spark plug abrupt release, fuel combination is lighted, but it is putElectricity demand power is large, and firing temperature is high, and constant ignition such as easily burns at the shortcoming. And microwave plasmaThe advantages such as igniting has energy-efficient, sustainable electric discharge, is easy to control, and electric discharge demand power is low.So be necessary that design research and development microwave igniting relevant apparatus makes up lacking of spark ignition nowFall into.
Plasma igniting device is to utilize high frequency to trigger the starting the arc, under high pressure produces direct current skyPneumoelectric arc plasma, plasma flame central temperature T > 10000K, this plasma existsDistrict of the great localized hyperthermia of formation temperature gradient in custom-designed burner central burner cylinder, makesFuel burns rapidly, reduces and impels the needed fire ignition energy of fuel combustion widely.
Plasma contains a large amount of chemically active particles, as atom (C, H, O), formerSon group (OH, H2, O2), ion (O2-, H2-, OH-, O-, H+) andElectronics etc., can accelerate heat chemistry conversion, promote complete combustion of fuel.
Plasma generator is the non-transfevent arc plasma generator of direct current. PlasmaThe advantage such as body has that temperature is high, concentration of energy, composition are controlled. It is made up of negative electrode, anode etc.Wherein cathode and anode material adopts and has high conductivity, high heat conduction, sludge proof metal material systemBecome, they all adopt water-cooling pattern cooling, impact to bear high arc temperature.
Because plasma has higher temperature and energy density, and can produce more workProperty composition, thereby cause in conventional physical-chemical reaction, be difficult to realize variation. Therefore needDesign a set of by microwave electromagnetic field produce induced electromotive force come microwave of discharge igniting etc. fromThe igniter of daughter reformer.
It is excellent that it has safe and efficient, easy startup, easy to control, simple in structure, sustainable igniting etc.Point. For drive the microwave energy of microwave reformer can be by magnetron, prionotron, partly leadThe microwave sources such as body microwave generator, semiconductor microwave power tube produce, and what the present invention adopted isSemiconductor microwave power tube drives microwave reformer, it have volume little, do not need high-tension electricity,The advantages such as electric discharge demand power is low, safe and efficient, with low cost.
Summary of the invention
The present invention has designed and developed a kind of vehicle-carried microwave reformer plasma ignition device, structure letterSingle, function is efficient and rational, be easy to control, and has realized the igniting of microwave electromagnetic induction discharge, wait fromDaughter is reformed in the optimal design of one, has expanded the application of microwave electromagnetic field.
Technical scheme provided by the invention is:
A kind of vehicle-carried microwave reformer plasma ignition device, comprises
Reaction chamber, is provided with air inlet on it;
Microwave Power Tubes, it is arranged in described reaction chamber, and described Microwave Power Tubes can be to instituteState launched microwave in reaction chamber;
Microwave plasma reaction tube, it is arranged in described reaction chamber, described microwave plasmaPrecursor reactant pipe is connected with described air inlet, is connected with and mixes combustion in described microwave plasma reaction tubeGas;
Microwave electromagnetic field induction discharge loop, it is made up of a wire coil with opening,And be connected described microwave electromagnetic field induction discharge loop energy with described microwave plasma reaction tubeThereby enough under microwave magnetic field effect, discharge the mixing in described microwave plasma reaction tubeCombustion gas punctures.
Preferably, described microwave plasma reaction tube is quartz ampoule, earthenware or fibre pipe.
Preferably, described microwave plasma reaction tube is spirality.
Preferably, described microwave electromagnetic field induction discharge loop comprises two free ends, described inThe taper shape with tip is made in two free end front portions, and two tips are mutually close, described twoFree end inserts microwave plasma reaction tube inside and contacts with air mixture, described microwaveElectromagnetic field inducing discharge loop inserts the part metals layer in described microwave plasma reaction tubeExposed, and insertion portion is not surrounded by resistant to elevated temperatures insulating barrier.
Preferably, described reaction chamber is annular cylinder.
Preferably, also comprise upper cover, described upper cover is arranged at the top of described reaction chamber, instituteState Microwave Power Tubes and described upper cover fixes.
Vehicle-carried microwave reformer plasma ignition device beneficial effect of the present invention is: thisBright have advantages such as safe and efficient, easy startup, easy to control, simple in structure, sustainable igniting.For driving the microwave energy of microwave reformer can pass through magnetron, prionotron, semiconductor microactuatorThe microwave sources such as wave producer, semiconductor microwave power tube produce, and are easy to light a fire at discharge loopEnd forms high voltage, and microwave power is adjustable, can carry out continual and steady plasmaReform. The present invention also have volume little, do not need high-tension electricity, low, the safety of electric discharge demand powerEfficiently, the advantage such as with low cost.
Brief description of the drawings
Fig. 1 is microwave reformer top view of the present invention.
Fig. 2 is microwave reformer upward view of the present invention.
Fig. 3 is microwave reformer 3 D stereo view of the present invention.
Fig. 4 is microwave plasma reaction tube 3 D stereo view of the present invention.
Fig. 5 is microwave electromagnetic field induction discharge of the present invention loop 3-D view.
Fig. 6 is that the field coupling in induction discharge loop in microwave electromagnetic field of the present invention is shownIntention.
Fig. 7 is that the magnetic Field Coupling in induction discharge loop in microwave electromagnetic field of the present invention showsIntention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, to make art technology peopleMember can implement according to this with reference to description word.
As shown in Figure 1, Figure 2, Figure 3 shows, the invention provides a kind of vehicle-carried microwave reformer etc.Ion ignition device, comprises reaction chamber 1001, Microwave Power Tubes 1002, microwave plasmaAlso establish on reaction chamber 1001 in reaction tube 1003, microwave electromagnetic field induction discharge loop 1004Be equipped with air inlet 1005. In this device, be also provided with upper cover 1007.
Microwave reformer reaction chamber 1001 is annular cylinder, and there is air mixture air inlet its bottom surfaceMouth 1005, multiple Microwave Power Tubes 1002 form microwave power synthesis system and are positioned over reaction chamberIn, can produce microwave 1006. Microwave Power Tubes 1002 is assemblied in microwave reformer reaction chamberOn upper cover 1007, and go deep into microwave reformer reaction chamber 1001. By to semiconductor microwave meritThe position of rate pipe 1002 and quantitative analysis, make the synthetic maximum of Microwave Power Tubes 1002 power,And by the control break microwave power output to semiconductor Microwave Power Tubes 1002 voltages,Reach eventually the light a fire requirement of the output to microwave power of device.
Consult in the lump Fig. 4 microwave plasma reaction tube 1003 and be placed in microwave reformer reaction chamber1001 centers, microwave plasma reaction tube 1003 can be quartz ampoule, earthenware, fiberPipes etc., adopt quartz ampoule in the present embodiment. Microwave plasma reaction tube 1003 and air inlet1005 connect, and in microwave plasma reaction tube 1003, are connected with air mixture. Microwave etc. fromSub-reaction tube is made 1003 spiralitys, can increase the air mixture microwave energy absorbing time alsoMake its microwave energy absorbing as much as possible, improve reactivity.
As shown in Figure 5, microwave electromagnetic field induction discharge loop 1004, its by one with openingThe wire coil of mouth is made, and it comprises two free ends, and make two free end front portions has tipTaper shape, and two tips are mutually close, two free ends insert microwave plasma reaction tubes1003 inside also contact with air mixture, and insert in microwave electromagnetic field induction discharge loop 1004Part metals layer in described microwave plasma reaction tube 1003 is exposed, and insertion portion notBe surrounded by resistant to elevated temperatures insulating barrier. Microwave electromagnetic field induction discharge loop 1004 is at resonator electromagnetismIn, both can pass through field coupling, magnetic Field Coupling generation induced electromotive force, also can both mixThe mode producing induced electromotive force closing. Described microwave electromagnetic field induction discharge loop 1004 canThereby electric discharge is by mixing in described microwave plasma reaction tube 1003 under microwave magnetic field effectClosing combustion gas punctures.
As shown in Figure 6, scheme the electromagnetic coupled position in microwave electromagnetic field induction discharge loop 1004Middle arrow is depicted as microwave electric field direction and size. By microwave electromagnetic field induction discharge loop 1004Be placed in the strength of electric field, adjust size and the position in microwave electromagnetic field induction discharge loop 1004Make its both sides broadside lay respectively at crest and the trough place of microwave electromagnetic field, induction discharge loop1004 are parallel to direction of an electric field, produce induced electromotive force by field coupling. Microwave electromagnetic fieldAs shown in Figure 7, induction discharge loop is vertical in the magnetic Field Coupling position in induction discharge loop 1004In magnetic direction, surround equidirectional place's high magnetic field area, and magnetic field maximum is positioned at inductionThe center of discharge loop, make surround magnetic flux maximum, be equivalent to like this microwave electromagneticA branch of electromagnetic wire " bundle " is got up in induction discharge loop, field, produces by the magnetic field higher-order of oscillationMagnetic flux change forms magnetic Field Coupling pattern, makes in microwave electromagnetic field induction discharge loop 1004Formation induced electromotive force maximum, continues in the 1004 interior formation of microwave electromagnetic field induction discharge loopDischarge current, thus more easily air mixture in microwave plasma reaction tube 1003 is punctured,Electric discharge forms plasma, improves reactivity.
Under different CGCMs, position, the electricity in microwave electromagnetic field induction discharge loop 1004The line length of field coupling, the area of magnetic Field Coupling have determined microwave electromagnetic field induction discharge loopThe size of 1004 discharge end induced electromotive forces, discharges in microwave electromagnetic field induction discharge loop 1004The radius of end spacing, discharge electrode tips or curvature have determined the electric-field intensity of region of discharge, electricityField intensity reaches the threshold value puncturing can form electric discharge. Therefore by microwave electromagnetic field discharge loop 1004Taper shape is made at two ends and tip is mutually close, is conducive to microwave electromagnetic field induction discharge loop1004 electric discharges form high-tension electricity, and air mixture is punctured to formation plasma.
The vehicle-carried microwave reformer plasma ignition device course of work of the present invention is as follows:
The Microwave Power Tubes 1002 interior sustained release microwave of backward reformer reaction chamber 1001 electricity of switching onMagnetic field 1006. After air mixture vaporization, enter microwave plasma reaction tube by air inlet 1005In 1003. Microwave plasma reaction tube 1003 is placed in microwave reaction chamber 1001 cardioelectric fieldsThe very big district of intensity, be conducive to microwave electromagnetic field induction discharge loop 1004 discharge by microwave etc. fromIn daughter reaction tube 1003, air mixture punctures formation plasma, is conducive to improve reactivity.
Electric field coupling is passed through at resonator elect magnetic field in microwave electromagnetic field induction discharge loop 1004Close, magnetic Field Coupling produce induced electromotive force.
Under field coupling pattern, microwave electromagnetic field induction discharge loop 1004 is parallel to electric fieldDirection, is positioned over electromagnetic field intensity algebraic step maximum, and the length of ab section and cd section is x,The electrical potential difference sum of two sections of inductions is
U＝2Ex
Wherein, E is electric-field intensity, and electrical potential difference is added in two discharge ends, and two discharge ends are equivalent to oneThe individual electric capacity that punctures, capacitance is
C＝Q/U
Wherein Q is electric weight, and two discharge ends are regarded the bead that two radiuses are r as, between two ballsElectric field be
Er＝2KQ/r2＝2KCU/r2＝4KCEx/r2
Wherein, K is electrostatic force constant, and the length x of induction discharge loop ab and cd section is very large,The radius r of discharge tip is very little, and therefore the electric-field intensity between discharge end punctures to realize very greatlyElectric discharge. Under magnetic Field Coupling pattern, be equivalent to microwave electromagnetic induction discharge loop 1004 " bundle "A branch of line of magnetic induction, induction discharge loop area is S, magnetic flux is
Φ＝SH
H is magnetic field intensity, and in resonator, magnetic field intensity H does the higher-order of oscillation in time, inductionElectromotive force is
Electric field between two balls is
Induction discharge loop area is very large, and the radius r of discharge tip is very little, therefore discharge end itBetween electric-field intensity equally very large. Be conducive to like this in microwave electromagnetic field induction discharge loop 1004Form maximum induced electromotive force U, between two discharge ends, form very large electric field strength E, willCombustion mixture punctures formation plasma, thereby realizes in plasma reaction tube 1003The igniting of air mixture, makes circle by 1004 liang, microwave electromagnetic field induction discharge loop discharge endTaper is also mutually close by two tips. Because Microwave Power Tubes 1002 continues to microwave reaction chamberMiddle launched microwave electromagnetic field 1006, thereby can shape in microwave electromagnetic field induction discharge loop 1004Become continuous discharge electric current, thereby the air mixture realizing in article on plasma reaction tube 1003 continuesDischarge breakdown current, form and puncture high-tension electricity. This breakdown voltage is by plasma reaction pipe 1003In air mixture puncture, complete ignition process.
This microwave reformer plasma ignition device is simple in structure, and function is efficient and rational, is easy to controlSystem. And by Microwave Power Tubes 1002, microwave electromagnetic field induction discharge loop 1004, etc.Put the position of gas ions reaction tube, and adjust the input of semiconductor microwave power tube 1002Voltage is to change microwave power output, and the maximized reformer volume that reduced, with manufacturing cost.This device has been realized the igniting of microwave electromagnetic induction discharge, and reforming plasma is established in the optimization of oneMeter, has widened the application of microwave electromagnetic field and the thought of microwave technology application greatly.
Although embodiment of the present invention are open as above, it is not restricted to description and enforcementListed utilization in mode, it can be applied to various applicable the field of the invention completely, forThose skilled in the art, can easily realize other amendment, are not therefore deviating from powerUnder the universal that profit requires and equivalency range limits, the present invention is not limited to specific detailsHere illustrate and the legend of describing.
Claims (6)
1. a vehicle-carried microwave reformer plasma ignition device, is characterized in that, comprises
Reaction chamber, it is cylinder, on described reaction chamber, is provided with air inlet;
Microwave Power Tubes, it gos deep into described reaction chamber inside, and described Microwave Power Tubes can be to described anti-Answer launched microwave in chamber;
Microwave plasma reaction tube, it is arranged on the very big district of electric-field intensity, described reaction chamber center, described inMicrowave plasma reaction tube is connected with described air inlet, is connected with mixed in described microwave plasma reaction tubeClose combustion gas;
Microwave electromagnetic field induction discharge loop, it is made up of a wire coil with opening, its topInsert microwave plasma reaction tube inside, described microwave electromagnetic field induction discharge loop can be at microwave electricityThereby under magnetic fields, producing electric discharge punctures the air mixture in described microwave plasma reaction tube.
2. vehicle-carried microwave reformer plasma ignition device according to claim 1, is characterized in that,Described microwave plasma reaction tube is quartz ampoule, earthenware or fibre pipe.
3. vehicle-carried microwave reformer plasma ignition device according to claim 1 and 2, its featureBe, described microwave plasma reaction tube is spirality.
4. vehicle-carried microwave reformer plasma ignition device according to claim 3, is characterized in that,Described microwave electromagnetic field induction discharge loop comprises two free ends, and make described two free end front portions hasThe taper shape of tip, and two tips are mutually close, and described two free ends insert microwave plasma precursor reactantPipe inside also contacts with air mixture, and described microwave etc. is inserted in described microwave electromagnetic field induction discharge loopPart metals layer in gas ions reaction tube is exposed, and insertion portion is not surrounded by resistant to elevated temperatures insulating barrier.
5. vehicle-carried microwave reformer plasma ignition device according to claim 1, is characterized in that,Described reaction chamber is annular cylinder.
6. vehicle-carried microwave reformer plasma ignition device according to claim 5, is characterized in that,Also comprise upper cover, described upper cover is arranged at the top of described reaction chamber, described Microwave Power Tubes and described onLid fixes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510063440.6A CN104696137B (en) | 2015-02-05 | 2015-02-05 | A kind of vehicle-carried microwave reformer plasma ignition device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510063440.6A CN104696137B (en) | 2015-02-05 | 2015-02-05 | A kind of vehicle-carried microwave reformer plasma ignition device |
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| CN104696137A CN104696137A (en) | 2015-06-10 |
| CN104696137B true CN104696137B (en) | 2016-05-25 |
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| CN201510063440.6A Expired - Fee Related CN104696137B (en) | 2015-02-05 | 2015-02-05 | A kind of vehicle-carried microwave reformer plasma ignition device |
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| CN105909449B (en) * | 2016-05-31 | 2017-08-08 | 吉林大学 | A kind of igniting inlet duct for microwave plasma reformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5531240B2 (en) * | 2005-09-20 | 2014-06-25 | イマジニアリング株式会社 | Ignition device, internal combustion engine, spark plug, and plasma device |
| RU2418978C2 (en) * | 2006-09-20 | 2011-05-20 | Имэджиниринг, Инк. | Ignition device, internal combustion engine, ignition plug, plasma equipment, device for decomposition of waste gas, ozone-forming/sterilising/disinfecting device and odour control device |
| CN202215411U (en) * | 2011-09-28 | 2012-05-09 | 四川得弘电子科技有限公司 | Electromagnetic field ignition coupling device for internal combustion engine |
| JP6446628B2 (en) * | 2013-01-22 | 2019-01-09 | イマジニアリング株式会社 | Plasma generator and internal combustion engine |
| CN103470427B (en) * | 2013-09-30 | 2016-08-17 | 清华大学 | Microwave plasma ignition combustion system of internal combustion engine |
| CN204436675U (en) * | 2015-02-05 | 2015-07-01 | 吉林大学 | A kind of vehicle-carried microwave reformer plasma ignition device |
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Granted publication date: 20160525 Termination date: 20220205 |