CN201568964U - Micro-combustor adopting applied electric field - Google Patents
Micro-combustor adopting applied electric field Download PDFInfo
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- CN201568964U CN201568964U CN2009202381873U CN200920238187U CN201568964U CN 201568964 U CN201568964 U CN 201568964U CN 2009202381873 U CN2009202381873 U CN 2009202381873U CN 200920238187 U CN200920238187 U CN 200920238187U CN 201568964 U CN201568964 U CN 201568964U
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- microburner
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- pedestal
- jacket wall
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Abstract
The utility model relates to a micro-combustor adopting an applied electric field, which comprises a fuel inlet hole (1), a vent (2), an air diversion fence (8), an external jacketwall (3), an internal jacketwall (4), a base (5), an electrode anode (6), an electrode cathode (7) and an electronic ignition device (10). The internal jacketwall and the external jacketwall form an interlayer space (6), fuel deflector holes (9) are distributed on the internal jacketwall, the base is a cone, and the air flow line formed by the air diversion fence (8) is parallel to the surface of the base (5), and is tangent with the round cross section of a combustion chamber (12). Through the ionic wind generated by the applied electric field, the utility model enables the air to forcibly flow; and through cyclone formed by the air diversion fence, tangential combustion is formed in the combustion chamber, so that the air is fully contacted with the fuel to improve combustion efficiency. The utility model has the advantages of low heat loss and stable combustion.
Description
Technical field
The utility model relates to a kind of microburner, is specifically related to a kind of microburner that adopts extra electric field, produces ion wind by adding highfield, and utilizes ion wind to organize the microburner of tangential firing.
Background technology
Along with microelectromechanical systems (MEMS) technology rapid development, the microminiaturized new trend that has become scientific and technological trend, as succeeding in developing of small weapon in various minute vehicles and electronic equipment and the high-tech modernized war, also make people recognize the importance of micro-energy resource system simultaneously to people have started a new field.It is that its energy density is little that the microkinetic device adopts the distinct disadvantage of lithium battery energy supply, and the shared volume of energy supplying system, weight are bigger.Therefore, the micro-energy resource system that the development volume is little, in light weight, energy density is high and can continue energy supply has important effect.And as the core of micro-energy resource system, the research of microburner caused both at home and abroad paid close attention to greatly.
Research direction to micro-burner mainly concentrates on how to reduce thermal loss to raise the efficiency the assurance flame holding at present, as adopt porous material to suppress heat transmission, adopt the backheat passage to come preheating unburned mixture body, and multi-turn is twined countercurrent flow structure etc.But the fuel form that existing micro-burner adopted is premixed gas, needs fuel to mix in advance with air.The premixed gas volume is big, and energy density is low, stores and transportation inconvenience, and explosion danger is arranged, so do not have a practicality.Comparatively speaking, liquid fuel or high-pressure gaseous fuel then are the inevitable choices of micro-burner future development.But the burning form of pure fuel is a diffusion flame, and is different with premixed flame, and diffusion flame when burning need fully mix with air to impel fuel in air current composition mode preferably.But the problem that air current composition exists in the microburner is: compare with conventional burners, the volume of micro-burner is little, between general several cubic millimeters to one cubic centimetre, and the little energy that produces, this makes the air current composition structure based on blower fan etc. that is used for large-scale combustors traditionally big because of its volume, complex structure, factor such as energy consumption height and energy utilization rate are low is difficult to realize on microburner.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of prior art, a kind of microburner that adopts extra electric field is provided, the utility model utilization adds the ion wind that highfield forms, and forms tangential firing, to solve the problem of micro-burner diffusion flame air current composition.
The utility model is based on a kind of like this physical principle, and in the formed open area in high-field electrode two ends, air is owing to ionization takes place highfield, wherein the free electron anode moves, be absorbed, the gas molecule of positively charged moves to negative electrode, thereby forms negative pressure region near anode.It is electronegative that positively charged molecule and negative pole clash into the back, acts on and reverse moving because the same sex is repelled each other, and neutralizes with the molecules strike of the positively charged that heads on, thereby form barotropic field near negative electrode.Because pressure differential, electrode place air and ambient gas form forced circulation and flow, thereby form ion wind.Air is by the air conducting fence, the ion wind that forms forms circumferential whirlwind in the combustion chamber, and, form tangential firing, thereby combustion reaction can fully be carried out with the gaseous state that laterally enters the combustion chamber by fuel pod apertures on the interior jacket wall or because the liquid fuel of high-temperature evaporation fully mixes.
The utility model is achieved through the following technical solutions:
A kind of microburner that adopts extra electric field, comprise overcoat wall 3, interior jacket wall 4, fuel hand-hole 1, steam vent 2 and electronic striking device 10, overcoat wall 3 forms mezzanine space 11 with interior jacket wall 4, and interior jacket wall 4 inboards are combustion chamber 12, and micro-burner is provided with electrode assembly and air conducting fence 8.
Described electrode assembly is made of electrode anode 6 and electrode cathode 7, and electrode anode 6 is embedded or be plated on pedestal 5 tops, electrode cathode 7 embedded or be plated in jacket wall end plate 14.
Described electrode cathode 7 is by lead ground connection; Described electrode anode 6 links to each other by lead and high-voltage DC power supply are anodal.
Jacket wall 4 has fuel pod apertures 9 in described.
The air-flow streamline that described air conducting fence 8 forms is parallel with pedestal 5 surfaces, and tangent with combustion chamber 12 cross circular section.
Described pedestal 5 is a circular cone, and the base angle of pedestal 5 is the bus of circular cone and the angle of bottom surface.
Described overcoat wall 4, interior jacket wall 3, steam vent 2 and pedestal 5 are on same axis, and cross section is circle.
Described pedestal 5 is positioned at the bottom of overcoat wall 3.
Described electronic striking device 10 is positioned at center, pedestal 5 top.
The electric-field intensity that described electrode assembly forms is 250-2000kV/m.
A kind of microburner that adopts extra electric field, wherein interior jacket wall 4 is cylinder with overcoat wall 3, and fuel pod apertures 9 evenly distributes on interior jacket wall 4.Overcoat wall 3 bottoms are provided with the air conducting fence 8 that is cone.Steam vent 2 links to each other with interior jacket wall 4, vertically passes overcoat wall 3 top end faces.Steam vent 2 is airtight the connection with interior jacket wall 4, overcoat wall 3.Fuel hand-hole 1 is positioned at overcoat wall 3 end faces with steam vent 2 homonymies, and near steam vent 2 places, its axis is parallel with steam vent 2 axis.Pedestal 5 is positioned at overcoat wall 3 bottoms, and it is shaped as cone, closely is connected with overcoat wall 3, and pedestal 5 conical tip are provided with electronic striking device 10.
The gap is 0.5mm to 2mm between described overcoat wall 3 and the interior jacket wall 4.
Jacket wall 4 is circle, interior jacket wall 4 internal diameter 3mm to 10mm, thickness 0.1～3mm with overcoat wall 3 cross sections in described.
Burner is provided with electrode assembly, and its electrode assembly is made of electrode anode 6, electrode cathode 7.Electrode anode 6 is positioned at pedestal 5 tops, is conical, and electrode cathode 7 is embedded in interior jacket wall 4 tops, and ringwise, negative and positive the two poles of the earth are the fire-resistant oxidation resistant metal.Interior jacket wall 4, pedestal 5 is the high-temperature insulation body.
The material of described electrode cathode 9 is the fire-resistant oxidation resistant metal, comprises silver, gold, platinum.
Jacket wall 4, pedestal 5 are high-temperature insulation material in described, comprise pottery, boron carbide, carborundum, boron nitride, silicon nitride, boron phosphide, phosphatization silicon etc.
The zone of fuel pod apertures 9 annular spread in interior jacket wall 4 bottoms to the middle part on the wherein interior jacket wall 4.The fuel pod apertures 9 of interior jacket wall 4 bottoms is semicircle, and all the other are circle.Overcoat wall 3 is provided with air conducting fence 8, and airintake direction and level are 10～20 ° of angles.Electrode anode 6 should be more than or equal to interior jacket wall 4 internal diameters at the formed diameter of a circle of horizontal plane projection.
Described fuel pod apertures 9 bore dias are 0.1～1mm.
During work, connect DC high-voltage power supply, make air enter the combustion chamber, form ion wind, because of flow-guiding channel and the interior jacket wall 4 inwall faces of cylinder are tangent and with level certain angle is arranged, so ion wind forms the rising whirlwind in combustion chamber 12 by air conducting fence 8.Simultaneously, fuel enters mezzanine space 11 by fuel hand-hole 1, by the pressure effect, enter combustion chamber 12 through fuel pod apertures 9 on the interior jacket wall 4 uniformly, and mix fully with the ion wind that rotates in a circumferential direction, 10 igniting of electronic striking device, fuel takes fire.Flame in the combustion chamber 12 forms tangential firing under ion wind drives, make the burning can efficient, stable carrying out.In addition, liquid film or air film that fuel forms at mezzanine space 11 places can form one deck heat insulation layer; The heat convection that jacket wall 4 outsides produced in fuel was flowing in, air during by air conducting fence 8 heat convection and the heat of taking back, also can effectively stop heat radiation, thereby further reduce heat loss.By above comprehensive function, the burning of fuel in micro-burner can be stablized, fully, carry out efficiently at 2.
The utility model is with respect to the advantage and the beneficial effect of prior art:
Advantages such as (1) organize air-flow to compare with using small-sized fan, utilize high-field electrode to produce this technical scheme of ion wind, it is little, in light weight to have a volume, and self specific consumption is low are specially adapted to microkinetic device field;
(2) combustion system is a diffusion flame in the utility model, need not fuel and mixes in advance with air, compares with premixed flame micro-burner in the past to have more practicality;
(3) in the utility model, the flame in the combustion chamber forms tangential firing under ion wind drives, and it is good that this combustion system has flame holding, and the ignition temperature advantages of higher can guarantee micro-combustion stable, carries out under efficient;
(4) liquid film or the air film that fuel forms at the mezzanine space place in the utility model can form one deck heat insulation layer; The heat convection that the jacket wall outside produced in fuel was flowing in, air during by the air conducting fence heat convection and the heat of taking back, also can effectively stop heat radiation, thereby reduce the wall heat loss to a great extent, make the combustion chamber keep high temperature, it is few to possess heat dissipation capacity, the good characteristics of combustion stability.
Description of drawings
Fig. 1 is the utility model structure chart;
Fig. 2 is the overcoat wall structure chart;
Fig. 3 is an overcoat wall A-A cutaway view;
Fig. 4 is interior jacket wall and electrode cathode structure chart;
Fig. 5 is pedestal and electrode anode structure chart.
Description of reference numerals:
1, fuel hand-hole 2, steam vent 3, overcoat wall 4, interior jacket wall 5, pedestal 6, electrode anode 7, electrode cathode 8, air conducting fence 9, fuel pod apertures 10, electronic striking device 11, mezzanine space 12, combustion chamber 13, overcoat wall end plate 14, interior jacket wall end plate.
The specific embodiment
As shown in Figure 1, adopt the microburner of extra electric field, its concrete structure comprises overcoat wall 3, interior jacket wall 4, pedestal 5, fuel hand-hole 1, air conducting fence 8, steam vent 2, electronic striking device 10.Wherein interior jacket wall 4 is cylinder with overcoat wall 3, and is coaxial, overcoat wall 3 internal diameter 9mm, wall thickness 0.5mm; Interior jacket wall 4 internal diameter 6.5mm, wall thickness 0.5mm.Overcoat wall and the thick 0.5mm that is of interior jacket wall end plate.The space forms mezzanine space 11, mezzanine space 11 spacing 0.75mm between interior jacket wall 4 and the overcoat wall 3.Interior jacket wall 4 inboards are 12 spaces, combustion chamber, combustion chamber 12 height 6.8mm.Steam vent 2 and interior jacket wall 4 vertically pass overcoat wall 3 top end faces.Steam vent 2 and interior jacket wall 4, overcoat wall 3 are coaxial, and are airtight connection.Fuel hand-hole 1 is positioned at overcoat wall 3 end faces with steam vent 2 homonymies, and apart from steam vent axial line distance 3mm place, its axis is parallel with steam vent 2 axis.Fuel hand-hole 1 internal diameter 1mm, steam vent internal diameter 1.5mm, pipe thickness is 0.5mm.Shown in Figure 5, pedestal 5 is positioned at overcoat wall 3 bottoms, is cone, closely is connected its base circle diameter (BCD) 10mm, high 1.4mm with overcoat wall 3 bottoms.Base bottom surface is apart from the upper surface 9.6mm of overcoat wall end plate 13.Pedestal 5 tops are provided with electronic striking device 10.
Burner is provided with electrode assembly, and its electrode assembly is made of electrode anode 6, electrode cathode 7.Pedestal 5 upper end diameter of sections are electrode anode smaller or equal to platinum plating in the 6.5mm scope, are circular cone.Interior jacket wall end plate 14 inboard platinum plating are electrode cathode 7, ringwise.Overcoat wall 3, interior jacket wall 4, pedestal 5 is ceramic material.Pedestal 5 bottoms, interior jacket wall end plate 14,13 perforation of overcoat wall end plate make electrode anode 6 connect 10kv DC high-voltage power supply positive pole by lead, and electrode cathode 7 is by lead ground connection, and the electric-field intensity that electrode assembly forms is 350kV/m
Fig. 4 establishes 8 fuel pod apertures 9 altogether on the interior jacket wall 4, divide 2 layers, 4 every layer be evenly distributed on the cross circular section of jacket wall 4, the 1st layer is being positioned at the jacket wall bottom, the 2nd layer is positioned at distance 2.6mm place, jacket wall bottom.The fuel pod apertures 9 of interior jacket wall 3 bottoms is semicircle, and all the other are circle, diameter 0.5mm.Air conducting fence 8 airintake directions are horizontal by angle on the overcoat wall 3.As shown in Figure 3, air conducting fence 8 has equally distributed 8 flow-guiding channels, the left and right sides end face of each flow-guiding channel is all tangent with the interior jacket wall face of cylinder, tangent with the cross circular section that guarantees air-flow streamline and combustion chamber 12, the upper surface of flow-guiding channel is parallel to pedestal 5 surfaces, and is parallel with pedestal 5 surfaces to guarantee the air-flow streamline.Flow-guiding channel is 0.5mm in the standoff height of perpendicular.
During work, connect DC high-voltage power supply, make air enter combustion chamber 12, form ion wind, because of flow-guiding channel and interior jacket wall 4 inwalls are tangent and with level certain angle is arranged, so ion wind forms the rising whirlwind in combustion chamber 12 by air conducting fence 8.Simultaneously, fuel enters mezzanine space 11 by fuel hand-hole 1, by the pressure effect, enter combustion chamber 12 through fuel pod apertures 9 on the interior jacket wall 4 uniformly, and mix fully with the ion wind that rotates in a circumferential direction, 10 igniting of electronic striking device, fuel takes fire.Flame in the combustion chamber 12 forms tangential firing under ion wind drives, make the burning can efficient, stable carrying out.In addition, liquid film or air film that fuel forms at mezzanine space 11 places can form one deck heat insulation layer; The heat convection that jacket wall 4 outsides produced in fuel was flowing in, air during by air conducting fence 8 heat convection and the heat of taking back, also can effectively stop heat radiation, thereby further reduce heat loss.Fuel fully contacts with air, adds less wall heat loss, and both actings in conjunction can make efficient, stable the carrying out of combustion reaction.
Claims (10)
1. microburner that adopts extra electric field, comprise overcoat wall (3), interior jacket wall (4), fuel hand-hole (1), steam vent (2) and electronic striking device (10), overcoat wall (3) forms mezzanine space (11) with interior jacket wall (4), interior jacket wall (4) inboard is combustion chamber (12), it is characterized in that micro-burner is provided with electrode assembly and air conducting fence (8).
2. microburner according to claim 1, it is characterized in that, described electrode assembly is made of electrode anode (6) and electrode cathode (7), and electrode anode (6) is embedded or be plated on pedestal (5) top, electrode cathode (7) embedded or be plated in jacket wall end plate (14).
3. microburner according to claim 2 is characterized in that, described electrode cathode (7) is by lead ground connection; Described electrode anode (6) links to each other by lead and high-voltage DC power supply are anodal.
4. according to claim 2 or 3 described microburners, it is characterized in that described interior jacket wall (4) has fuel pod apertures (9).
5. microburner according to claim 4 is characterized in that, the air-flow streamline that described air conducting fence (8) forms is parallel with pedestal (5) surface, and tangent with combustion chamber (12) cross circular section.
6. microburner according to claim 5 is characterized in that, described pedestal (5) is a circular cone.
7. microburner according to claim 6 is characterized in that, described overcoat wall (4), interior jacket wall (3), steam vent (2) and pedestal (5) are on same axis, and cross section is circle.
8. microburner according to claim 7 is characterized in that, described pedestal (5) is positioned at the bottom of overcoat wall (3).
9. microburner according to claim 8 is characterized in that, described electronic striking device (10) is positioned at pedestal (5) center, top.
10. microburner according to claim 9 is characterized in that, the electric-field intensity that described electrode assembly forms is 250-2000kV/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202381873U CN201568964U (en) | 2009-10-30 | 2009-10-30 | Micro-combustor adopting applied electric field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202381873U CN201568964U (en) | 2009-10-30 | 2009-10-30 | Micro-combustor adopting applied electric field |
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| CN201568964U true CN201568964U (en) | 2010-09-01 |
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| CN2009202381873U Expired - Fee Related CN201568964U (en) | 2009-10-30 | 2009-10-30 | Micro-combustor adopting applied electric field |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878555A (en) * | 2012-09-11 | 2013-01-16 | 华南理工大学 | Electrospray liquid fuel combustor |
| CN104235839A (en) * | 2014-09-11 | 2014-12-24 | 浙江大学 | Catalytic reforming microburner of liquid fuel |
| CN105402725A (en) * | 2015-12-31 | 2016-03-16 | 重庆大学 | Micro diffuse type combustion apparatus for micro-thermphotoelectric system |
| CN105546583A (en) * | 2015-12-31 | 2016-05-04 | 重庆大学 | Miniature heat regeneration diffusion type uniform combustion device with combustion room shrunk gradually |
| CN108469020A (en) * | 2012-07-24 | 2018-08-31 | 克利尔赛恩燃烧公司 | Electric stabilizing burner |
| CN112254127A (en) * | 2020-10-30 | 2021-01-22 | 哈尔滨工业大学 | System and method for testing flame stabilizing effect in flat plate slit by external electric field |
-
2009
- 2009-10-30 CN CN2009202381873U patent/CN201568964U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469020A (en) * | 2012-07-24 | 2018-08-31 | 克利尔赛恩燃烧公司 | Electric stabilizing burner |
| CN102878555A (en) * | 2012-09-11 | 2013-01-16 | 华南理工大学 | Electrospray liquid fuel combustor |
| CN104235839A (en) * | 2014-09-11 | 2014-12-24 | 浙江大学 | Catalytic reforming microburner of liquid fuel |
| CN104235839B (en) * | 2014-09-11 | 2017-01-11 | 浙江大学 | Catalytic reforming microburner of liquid fuel |
| CN105402725A (en) * | 2015-12-31 | 2016-03-16 | 重庆大学 | Micro diffuse type combustion apparatus for micro-thermphotoelectric system |
| CN105546583A (en) * | 2015-12-31 | 2016-05-04 | 重庆大学 | Miniature heat regeneration diffusion type uniform combustion device with combustion room shrunk gradually |
| CN105546583B (en) * | 2015-12-31 | 2018-02-27 | 重庆大学 | A kind of tapered miniature backheat disperse formula homogenous combustion device in combustion chamber |
| CN112254127A (en) * | 2020-10-30 | 2021-01-22 | 哈尔滨工业大学 | System and method for testing flame stabilizing effect in flat plate slit by external electric field |
| CN112254127B (en) * | 2020-10-30 | 2022-12-13 | 哈尔滨工业大学 | System and method for testing flame stabilizing effect in flat plate slit by external electric field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20161030 |
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| CF01 | Termination of patent right due to non-payment of annual fee |