CN106524143B - A kind of burner applied to micro thermo optoelectronic system - Google Patents
A kind of burner applied to micro thermo optoelectronic system Download PDFInfo
- Publication number
- CN106524143B CN106524143B CN201610993513.6A CN201610993513A CN106524143B CN 106524143 B CN106524143 B CN 106524143B CN 201610993513 A CN201610993513 A CN 201610993513A CN 106524143 B CN106524143 B CN 106524143B
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- Prior art keywords
- combustion chamber
- optoelectronic system
- chamber lower
- potsherd
- chamber top
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C13/00—Apparatus in which combustion takes place in the presence of catalytic material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C13/00—Apparatus in which combustion takes place in the presence of catalytic material
- F23C13/08—Apparatus in which combustion takes place in the presence of catalytic material characterised by the catalytic material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/13001—Details of catalytic combustors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The present invention provides a kind of burners applied to micro thermo optoelectronic system, including combustion chamber top, igniter, combustion chamber lower part；The combustion chamber top passes through high-temperature plastic adhesion with the combustion chamber lower part；The lower part of the combustion chamber and the rectangular cross-section of combustion chamber top；Vent gas treatment region and porous media region are equipped in the combustion chamber top；The combustion chamber lower part is divided into multiple catalytic combustion zone domains by potsherd, and the potsherd single side adjacent with the long side face of combustion chamber lower part coats catalyst, and face-to-face with the long side face of the combustion chamber lower part.Igniter is set between the combustion chamber top and the combustion chamber lower part, and is inserted into the catalytic combustion zone domain.The present invention can realize that the stability and high efficiency under miniature scale under multi fuel and various maximum conditions burns, and can provide stable wall surface high temperature, while can greatly improve energy utilization rate, reduce environmental pollution.
Description
Technical field
The present invention relates to the hot photovoltaic energy conversion technical fields of minute yardstick, being applied to low-grade fever Opto-electrical Section more particularly to one kind
The burner of system.
Background technology
With the demand increase and the fast development of miniature scale processing technology of small electronic mechanical system, microkinetic
Mechanical system becomes the hot spot of current research.Burning of the system based on fuel, and with high (the about conventional lithium electricity of energy density
Tens times of pond), the features such as small (generally grade or less).Micro thermo optoelectronic system is micro- as a kind of movement-less part
Power machinery system, principle are burnt in the burner the chemical energy of release using fuel, and the spoke of burner wall surface is converted to
Energy is penetrated, recycles photovoltaic cell to carry out opto-electronic conversion and produces electricl energy.However, core component-micro combustor of micro thermo optoelectronic system
Size than traditional combustion room much smaller size, also produce in this way it is many about minute yardstick stablize burning in terms of difficulties
Topic.Such as the surface-to-volume ratio (face body ratio) of micro-scale gas flow room, than big under conventional scale, this makes combustion chamber wall surface
Heat loss greatly increase, seriously affected burning stability and chemical reaction rate；Meanwhile the increase of surface to volume ratio, make
The collision frequency for obtaining living radical and wall surface increases, and to reduce the quantity of free radical in combustion reaction, leads to burning not
Fully, chemical reaction rate reduces, and phenomenon of stopping working easily occurs.
In micro thermo optoelectronic system, it is crucial to obtain the burner wall surface with high radiation energy.Although face body than increase
Many above-mentioned the problem of being unfavorable for burning are brought, but for micro thermo optoelectronic system, the high face-body-rate of micro combustor can have
Effect promotes the radiation energy of unit area in combustion chamber wall surface, is conducive to promote hot photoelectric energy transformation efficiency.Currently, conventional micro- ruler
Spending combustion chamber, there are shortcomings, and if outside wall surface temperature-difference is big, temperature distribution is non-uniform, this is also unfavorable for promoting low-grade fever light
The energy conversion efficiency of electric system.
However, using catalysis combustion system wall surface temperature can be effectively improved, reduces hot-quenching and put out effect and pollutant
Discharge improves efficiency of combustion, can finally stablize and promote to burn.Using multi-hole medium combustion technology, the heat for generation of burning
Unburned premix fuel is passed to by itself heat conduction and radiation effects, high-temperature flue gas waste heat can also pass through the heat storage capacity of itself
It is recycled, this can greatly improve the burning velocity of fuel and flame combustion rate.In consideration of it, the present invention will catalysis burning and
Multi-hole medium combustion technology is combined, and designs the novel micro-burner for having high radiation energy, to reach cleaning, efficient, stabilization
The purpose of burning.
Invention content
In response to the deficiencies in the existing technology, the present invention provides a kind of burners applied to micro thermo optoelectronic system, should
The advantage of lower cost of burner, it is simple in structure, it can realize multi fuel and various lean combustions (or fuel-rich) limit item under miniature scale
Stability and high efficiency burning under part, can provide stable wall surface high temperature, while can greatly improve energy utilization rate, reduce environment
Pollution.
The present invention achieves the above technical objects by the following technical means.
A kind of burner applied to micro thermo optoelectronic system, including combustion chamber top, igniter, combustion chamber lower part；It is described
Combustion chamber top passes through high-temperature plastic adhesion with the combustion chamber lower part；The lower part and combustion chamber top section of the combustion chamber are
Rectangle；Vent gas treatment region and porous media region are equipped in the combustion chamber top；At the porous media region and tail gas
It is porous media to manage packing material in region, porous media impregnation catalyst agent in the vent gas treatment region；Under the combustion chamber
Portion is divided into multiple fluid channels, the potsherd to be parallel to the long side of the combustion chamber lower part by the potsherd being vertically arranged
Face, and it is Nian Jie with the short side face of combustion chamber lower part by high-temperature plastic；The long side face coating catalysis of the combustion chamber lower part
Agent；The potsherd single side adjacent with the long side face of combustion chamber lower part coats catalyst, and with the length of the combustion chamber lower part
Side face is face-to-face；The potsherd formation catalysis burning in the long side face, short side face and single side coating catalyst of the combustion chamber lower part
Region；Igniter is set between the combustion chamber top and the combustion chamber lower part, and is inserted into the catalytic combustion zone domain.
Further, the lower part of the combustion chamber and combustion chamber top material are low thermal conductivity material.
Further, the lower part of the combustion chamber is ceramic material.
Further, the combustion chamber top is high light transmission quartz glass.
Further, the thickness of the potsherd is 0.2-0.4mm, and the distance between every potsherd is 0.2-0.6mm.
Further, the potsherd material is silicon carbide or phosphatization silicon or silicon nitride.
Further, the porous media material porosity is in 0.6-0.95.
Further, the porous media material is corundum either silicon carbide or zirconium oxide.
Further, the igniter is ignition.
Further, catalyst is noble metal or metal oxide containing precious metals.
The beneficial effects of the present invention are
1. the burner of the present invention applied to micro thermo optoelectronic system, it is anti-that on catalysis wall surface heat release occurs for fuel
It answers, improves the temperature of wall surface, reduce being quenched for living radical, also preheated unburned fuel mixture in channel.Due to urging
Agent has adsorptive selectivity, so selecting different catalysis materials that can effectively reduce the generation of intermediate product, reduces pollutant
The generation of (such as nitrogen oxides).
2. the burner of the present invention applied to micro thermo optoelectronic system, adopting porous media has higher specific surface area
And specific heat capacity, high temperature source can be fixed, increases the exchange rate between gas and solid, promotes the uniformity of Temperature Distribution.
The self structure of porous media can extend fuel residence time, and overheavy firing process improves combustion safety and stability；It is more
The heat that the high heat conductance of hole medium and intense radiation effect can be such that reaction releases upstream is transmitted to the fluid closed on downstream and is situated between
Matter.
3. the burner of the present invention applied to micro thermo optoelectronic system, under the conditions of minute yardstick, when fuel is resident
Between it is short burning it is insufficient, wall surface temperature relatively low disadvantage in combustion chamber downstream is filled using the porous media of supported catalyst to combustion
On the one hand efficiency of combustion, wall surface temperature are improved in burn through road tail portion；On the other hand, the discharge of pollutant is reduced.
4. the burner of the present invention applied to micro thermo optoelectronic system, using catalysis burning and multi-hole medium combustion skill
Art is combined, reach stablize burning, efficiently, low stain, it is easy to operate the purpose of, with the novelty in principle.
5. the burner of the present invention applied to micro thermo optoelectronic system can expand fuel using tail gas disposal technique
Use scope, greatly promoted burner applicability.
6. the burner of the present invention applied to micro thermo optoelectronic system, the technology of the present invention may be implemented small processing and
Batch production, has popularization condition.
Description of the drawings
Fig. 1 is the structural schematic diagram of the burner of the present invention applied to micro thermo optoelectronic system.
Fig. 2 is the partial structural diagram in porous media region of the present invention.
Fig. 3 is catalytic combustion zone domain structure schematic diagram of the present invention.
In figure：
The combustion chambers 1- top；2- igniters；The combustion chambers 3- lower part；4- catalytic combustion zones domain；5- porous medias region；6- tails
Gas disposal region；7- potsherds；8- catalyst；9- porous medias；10- long sides face；11- short sides face.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
It is without being limited thereto.
Under burner shown in FIG. 1 applied to micro thermo optoelectronic system, including combustion chamber top 1, igniter 2, combustion chamber
Portion 3；The combustion chamber top 1 passes through high-temperature plastic adhesion, the lower part and combustion chamber of the combustion chamber with the combustion chamber lower part 3
Top material is low thermal conductivity material, and the lower part of the combustion chamber is ceramic material, and the combustion chamber top is high light transmitting stone
English glass；1 rectangular cross-section of lower part 3 and combustion chamber top of the combustion chamber；Vent gas treatment is equipped in the combustion chamber top 1
Region 6 and porous media region 5；Packing material is porous media 9, institute in the porous media region 5 and vent gas treatment region 6
9 impregnation catalyst agent 8 of porous media in vent gas treatment region 6 is stated, the catalyst 8 is noble metal or metal oxide containing precious metals；Knot
It closes shown in Fig. 3, the combustion chamber lower part 3 is divided into multiple fluid channels by potsherd 7, and potsherd 7, which has, supports porous Jie
The effect of matter 9.The potsherd 7 is parallel to the long side face 10 of the combustion chamber lower part 3, and short with the combustion chamber lower part 3
Side face 11 is bonded by high-temperature plastic；The thickness of potsherd 7 is 0.2-0.4mm, and the distance between every potsherd is 0.2-
0.6mm, potsherd preferably use the materials such as silicon carbide, phosphatization silicon or silicon nitride；The coating of long side face 10 of the combustion chamber lower part 3 is urged
Agent 8；Potsherd 7 single side adjacent with the long side face 10 of the combustion chamber lower part 3 coats catalyst 8, and with the combustion chamber
The long side face 10 of lower part 3 is face-to-face.The long side face 10 of the combustion chamber lower part 3, the pottery in short side face 11 and single side coating catalyst 8
Tile 7 forms catalytic combustion zone domain 4；Igniter 2 is set between the combustion chamber top 1 and the combustion chamber lower part 3, and is inserted into
In the catalytic combustion zone domain 4.Igniter 2 selects ignition, and ignition electrode is plain conductor.
When work, fuel and oxidant mixture enter the combustion chamber top 1 and the combustion chamber lower part 3 after premix
The burning gallery of composition is lighted a fire by igniter 2, and ignite mixture, and the catalysis reaction in catalytic combustion zone domain 4 is initiated immediately, is applied
Cover the combustion chamber lower part 3 of catalyst 8 long side face 10 and potsherd 7 by reaction generate heat, while also preheated into
Mouth mixture.When non-burning mixt enters porous media region 5, occur combustion reaction, the heat lift for release of burning is porous
The temperature of medium 9, to obtain that there is the high temperature heat source of high radiation energy；The flue gas that burning generates enters vent gas treatment region 6, by
In catalyst can further to flue gas in unburned fuel or the complete intermediate product of unreacted carry out catalysis reaction, reaction generates heat
It is transmitted in the porous media 9 with catalyst with the heat of flue gas, taken care of yourself has depositing for high temperature heat source in vent gas treatment region
?.The application of these technologies can preferably realize the present invention, achieve the purpose that efficient, stable, combustion with reduced pollutants.
For the material preferable porosity of the porous media 9 in 0.6-0.95,9 material of the porous media is corundum or carbon
SiClx or zirconium oxide.
The embodiment is the preferred embodiments of the present invention, but present invention is not limited to the embodiments described above, not
Away from the present invention substantive content in the case of, those skilled in the art can make it is any it is conspicuously improved, replace
Or modification all belongs to the scope of protection of the present invention.
Claims (10)
1. a kind of burner applied to micro thermo optoelectronic system, which is characterized in that including combustion chamber top (1), igniter (2),
Combustion chamber lower part (3)；
The combustion chamber top (1) passes through high-temperature plastic adhesion with the combustion chamber lower part (3)；The lower part (3) of the combustion chamber
With combustion chamber top (1) rectangular cross-section；
It is equipped with vent gas treatment region (6) and porous media region (5) in the combustion chamber top (1)；The porous media region
(5) and vent gas treatment region (6) interior packing material is porous media (9), the interior porous media of the vent gas treatment region (6) (9)
Impregnation catalyst agent (8)；The combustion chamber lower part (3) is divided into multiple fluid channels by the potsherd (7) being vertically arranged, described
Potsherd (7) is parallel to the long side face (10) of the combustion chamber lower part (3), and passes through high-temperature plastic and the combustion chamber lower part
(3) short side face (11) bonding；Long side face (10) the coating catalyst (8) of the combustion chamber lower part (3)；With under the combustion chamber
Adjacent potsherd (7) single side coating catalyst (8) in the long side face (10) in portion (3), and with the long side of the combustion chamber lower part (3)
Face (10) is face-to-face；The long side face (10) of the combustion chamber lower part (3), the pottery of short side face (11) and single side coating catalyst (8)
Tile (7) forms catalytic combustion zone domain (4)；
Igniter (2) is set between the combustion chamber top (1) and the combustion chamber lower part (3), and is inserted into the catalysis burning
In region (4).
2. the burner according to claim 1 applied to micro thermo optoelectronic system, which is characterized in that under the combustion chamber
Portion (3) and combustion chamber top (1) material are low thermal conductivity material.
3. the burner according to claim 2 applied to micro thermo optoelectronic system, which is characterized in that under the combustion chamber
Portion (3) is ceramic material.
4. the burner according to claim 1 applied to micro thermo optoelectronic system, which is characterized in that combustion chamber top
(1) it is high light transmission quartz glass.
5. the burner according to claim 1 applied to micro thermo optoelectronic system, which is characterized in that the potsherd (7)
Thickness be 0.2-0.4mm, the distance between every potsherd be 0.2-0.6mm.
6. the burner according to claim 1 applied to micro thermo optoelectronic system, which is characterized in that the potsherd (7)
Material is silicon carbide or phosphatization silicon or silicon nitride.
7. the burner according to claim 1 applied to micro thermo optoelectronic system, which is characterized in that the porous media
(9) material porosity is in 0.6-0.95.
8. the burner according to claim 1 applied to micro thermo optoelectronic system, which is characterized in that the porous media
(9) material is corundum either silicon carbide or zirconium oxide.
9. the burner according to claim 1 applied to micro thermo optoelectronic system, which is characterized in that the igniter (2)
For ignition.
10. the burner according to claim 1 applied to micro thermo optoelectronic system, which is characterized in that the catalyst (8)
For noble metal or metal oxide containing precious metals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610993513.6A CN106524143B (en) | 2016-11-10 | 2016-11-10 | A kind of burner applied to micro thermo optoelectronic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610993513.6A CN106524143B (en) | 2016-11-10 | 2016-11-10 | A kind of burner applied to micro thermo optoelectronic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106524143A CN106524143A (en) | 2017-03-22 |
| CN106524143B true CN106524143B (en) | 2018-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610993513.6A Active CN106524143B (en) | 2016-11-10 | 2016-11-10 | A kind of burner applied to micro thermo optoelectronic system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706861B (en) * | 2020-06-29 | 2022-07-22 | 江苏大学 | Spiral-flow type air inlet porous medium burner for micro-thermal photoelectricity |
| CN112555818A (en) * | 2020-11-25 | 2021-03-26 | 江苏大学 | Micro-combustor for burning liquid fuel applied to micro-thermophotovoltaic system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101040147A (en) * | 2004-10-13 | 2007-09-19 | 韦巴斯托股份公司 | Burner device with a porous body |
| CN101929676A (en) * | 2010-08-05 | 2010-12-29 | 西安交通大学 | Catalytic porous medium burner |
| CN206191585U (en) * | 2016-11-10 | 2017-05-24 | 江苏大学 | Be applied to low -grade fever optoelectronic system's combustor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005027698A1 (en) * | 2005-06-15 | 2006-12-21 | Daimlerchrysler Ag | Porous burner for combustion of hydrogen, has mixing space for mixing reducing and oxidizing agents, combustion space filled with porous material, and flame barrier containing another porous material of preset porosity and density |
-
2016
- 2016-11-10 CN CN201610993513.6A patent/CN106524143B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101040147A (en) * | 2004-10-13 | 2007-09-19 | 韦巴斯托股份公司 | Burner device with a porous body |
| CN101929676A (en) * | 2010-08-05 | 2010-12-29 | 西安交通大学 | Catalytic porous medium burner |
| CN206191585U (en) * | 2016-11-10 | 2017-05-24 | 江苏大学 | Be applied to low -grade fever optoelectronic system's combustor |
Non-Patent Citations (1)
| Title |
|---|
| 燃烧室结构对微热光电系统能量转换的影响分析;唐爱坤等;《兵工学报》;20110731;第32卷(第7期);866-871页 * |
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| CN106524143A (en) | 2017-03-22 |
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