CN203203030U - Alcohol group fuel burner - Google Patents
Alcohol group fuel burner Download PDFInfo
- Publication number
- CN203203030U CN203203030U CN2013202229158U CN201320222915U CN203203030U CN 203203030 U CN203203030 U CN 203203030U CN 2013202229158 U CN2013202229158 U CN 2013202229158U CN 201320222915 U CN201320222915 U CN 201320222915U CN 203203030 U CN203203030 U CN 203203030U
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- China
- Prior art keywords
- fuel
- shell
- throat
- catalytic reaction
- reaction body
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses an alcohol group fuel burner which comprises an outer shell. A fuel pipeline is arranged on the top of the outer shell, a catalytic reaction body is arranged inside the outer shell and located between the throat portion and the fuel pipeline, and a flue gas returning channel is vertically arranged inside the outer shell. The flue gas returning channel penetrates through the catalytic reaction body, a top cover is arranged on the flue gas channel, and a bottom cover is arranged on the bottom of the flue gas channel. An outlet section of a fuel output pipe vertically extends to the throat portion of the outer shell from the lower portion of the outer shell, and an igniter is arranged on the inner wall of the outer shell. Before fuels are atomized, the alcohol group fuel is heated by the heat produced by the burner, the tension of the alcohol group fuel is reduced, and the atomization effect is better. When the flue gas flows back to a gas atomization mixture area, the air is heated, the comprehensive heat utilization efficiency of the burner is improved, the heat of a flame burning zone moves to the mixture space under the action of the backflow of the flue gas, the temperature of the flame burning zone is reduced, the temperature of the whole burner is prone to being even, and carbon deposition produced by liquid fuels due to the fact that the flame temperature is excessively high is reduced.
Description
Technical field
The utility model relates to technical field of burner, particularly relates to a kind of alcohol-based fuel burner.
Background technology
Burner is widely used in industry, and agricultural in the middle of communications and the daily life, in actual life, mainly contains three kinds of burners of gas, liquid, solid.Fluid combustion need to be through just obtaining high efficiency of combustion after the mode refinements such as atomizing, such as the disclosed liquid-fuel burner of the utility application 201110405701.X of China, directly utilize the nozzle atomization liquid fuel, then air supply mouth, overheavy firing are set around flame.Prior art institute Adopts measure has improved efficiency of combustion to a certain extent, but utilize the atomizing granule of jet pipe ejection directly to burn, flame is so that the liquid particles combustion by evaporation, but because flame high temperature is also so that the liquid internal direct carbonization, burning is not very abundant, and easy carbon distribution after the burning, the Thermal Synthetic utilization ratio is still lower.Therefore, improve the efficiency of combustion of alcohol-based fuel burner, Thermal Synthetic utilization ratio and the still further improvement of eliminating the aspects such as carbon distribution.
The utility model content
For above shortcomings in the prior art, the utility model provides a kind of atomizing effect better, improves the Thermal Synthetic utilization ratio, eliminates the alcohol-based fuel burner of carbon distribution.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
Alcohol-based fuel burner, comprise hollow and profile be the shell of goblet shape structure, the bottom of described shell is air intake; The top of described shell is the fuel channel of helical structure along the inwall setting, the upper port of described fuel channel is connected with fuel inlet pipe, and the lower port of fuel channel is connected with the fuel efferent duct; In the enclosure and between the throat of shell and fuel channel the catalytic reaction body is set, the smoke backflow passage vertically is set in the described shell, described smoke backflow passage passes the catalytic reaction body, and the top, top of smoke backflow passage arranges top cover, and the bottom of smoke backflow passage arranges bottom;
The outlet section of described fuel efferent duct is stretched to the throat of shell straight up by the bottom of shell, the port of export of described fuel efferent duct arranges fuel nozzle;
Described catalytic reaction body is comprised of to setting gradually a plurality of ring-shaped pottery sheets between the outer casing inner wall the outer wall of smoke backflow passage, forms miniature catalysis passage between the adjacent annular potsherd; Surface at the ring-shaped pottery sheet scribbles catalyst;
Described bottom arranges a plurality of annular fins from top to bottom in a circumferential direction, and the fin passage is set between the adjacent annular fin.
As a kind of preferred version of the present utility model, the outward flange of described annular fin upwards, and with the angle of level be 15 °.
As another kind of preferred version of the present utility model, the diameter ratio of the height of described shell and shell throat is 9:1, the diameter of cover top portion and the diameter ratio of throat are 4:1, the upper surface diameter of catalytic reaction body and the diameter ratio of throat are 3:1, the lower surface diameter of catalytic reaction body and the diameter ratio of throat are 2.6:1, and the diameter of top cover is 1.4:1～1.6:1 with the direct ratio of throat.
As another preferred version of the present utility model, the thickness of described catalytic reaction body is 4～8cm, forms the air-flow mixed zone between catalytic reaction body and throat, and the height of described air-flow mixed zone and the diameter ratio of throat are 3:1.
Compared with prior art, alcohol-based fuel burner of the present utility model has following advantage:
1, before fuel atomization, the heat heating alcohol-group fuel that utilizes burner self to produce, so that the tension force of alcohol-group fuel reduces, atomizing effect is better; Burner also is provided with recirculation zone, smoke backflow is to the gas atomization Mixed Zone, not only can preheated air, improve comprehensive combustion device efficiency of utilization, and because the backflow of flue gas so that flame combustion district heat move to blending space, so that flame combustion district temperature reduces, it is even that the temperature of whole burner is tending towards more, lack of air causes the main cause of carbon distribution owing to the burning local temperature is too high, therefore, the reduction of burner local temperature can reduce liquid fuel because the carbon distribution that too high flame temperature produces.
2, the utility model utilization is alcohol-group fuel, and non-fossil fuel directly can extract from plant, therefore, is the energy-conservation burner of a kind of clean environment firendly; Because the homogenising of temperature, so that the Reducing exhaust emission of pernicious gas, the main combustion product of discharge is CO
2And H
2O.
3, the utility model uses the miniature catalysis passage that potsherd forms, and realizes reforming reaction, the H of generation in the passage
2Can realize the purpose of overheavy firing; Microchannel wall surface area is very large, and is ceramic surface, can play accumulation of heat, thereby realizes the purpose of smooth combustion.
4, the utility model directly utilizes Fire Radiation heat, and backflow flue gas comes the preheating mixed airflow, so not only can improve efficiency of combustion, and flue gas also provides active particle for catalytic reaction.
5, the utility model has very high efficiency of utilization, and also has very strong anti-carbon deposition ability, according to the size of burner and the difference of fuel, the utility model can improve Thermal Synthetic utilization ratio 15%-19% on the basis of common alcohol-based fuel burner.
Description of drawings
Fig. 1 is the structural representation of alcohol-based fuel burner;
Fig. 2 is the top view of catalytic reaction body;
Fig. 3 is the cross section view of catalytic reaction body;
Fig. 4 is the structural representation of bottom.
In the accompanying drawing: 1-shell; 2-air intake; 3-fuel channel; 4-fuel inlet pipe; 5-fuel efferent duct; 6-catalytic reaction body; 7-smoke backflow passage; 8-top cover; 9-bottom; 10-fuel nozzle; 11-ring-shaped pottery sheet; 12-miniature catalysis passage; 13-annular fin; 14-fin passage; 15-igniter; 16-air-flow mixed zone; 17-bracing frame; 18-potsherd; 19-door; The take-up reel of 20-liquid; The take-up reel of 21-liquid; 22-flame region.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Shown in Fig. 1～4, alcohol-based fuel burner, comprise hollow and profile be the shell 1 of goblet shape structure, it is large that shell 1 forms the two ends diameter, the middle part diameter is little.The bottom of shell 1 is air intake 2, the top of shell 1 is exhanst gas outlet, the top of shell 1 is the fuel channel 3 of helical structure along the inwall setting, the upper port of fuel channel 3 is connected with fuel inlet pipe 4, fuel inlet pipe 4 extends to the bottom of shell 1 straight down, the lower port of fuel channel 3 is connected with fuel efferent duct 5, fuel efferent duct 5 is U-shaped structure, the outlet section of fuel efferent duct 5 is stretched to the throat of shell 1 straight up by the bottom of shell 1, the port of export of fuel efferent duct 5 arranges fuel nozzle 10.In shell 1 and between the throat of shell 1 and fuel channel 3, catalytic reaction body 6 is set, the shell 1 interior smoke backflow passage 7 that vertically arranges, smoke backflow passage 7 passes catalytic reaction body 6, catalytic reaction body 6 is stretched out at the two ends of smoke backflow passage 7, the top, top of smoke backflow passage 7 arranges top cover 8, and top cover is arranged on the smoke backflow passage 7 by bracing frame 17.The bottom of smoke backflow passage 7 arranges bottom 9.
The structure of catalytic reaction body 6 is shown in Fig. 2,3, catalytic reaction body 6 is comprised of to setting gradually a plurality of ring-shaped pottery sheets 11 between shell 1 inwall the outer wall of smoke backflow passage 7, form miniature catalysis passage 12 between the adjacent annular potsherd 11, ring-shaped pottery sheet 11 connects by the potsherd 18 that vertical and horizontal arrange.Surface at ring-shaped pottery sheet 11 scribbles catalyst.Smoke backflow passage 7 is fixed on the middle part of catalytic reaction body 6, and then smoke backflow passage 7 is fixed in the shell 1.The structure of bottom 9 as shown in Figure 4, bottom 9 arranges a plurality of annular fins 13 from top to bottom in a circumferential direction, the outward flange of annular fin 13 upwards, and with the angle of level be 15 °, the assurance backflow flue gas is laterally injected air-flow mixed zone 16 like this, fin passage 14 is set between the adjacent annular fin 13, and the bottom of bottom 9 is door 19.The inwall of shell 1 and be provided with igniter 15 between fuel channel 3 and catalytic reaction body 6, igniter 15 is arranged on the top of reactive agent 6, is installed on the inwall of shell 1 impact that external circuits is not burnt.
Alcohol-based fuel burner is by Rafael nozzle shape burner housing, fuel inlet pipe 4, fuel efferent duct 5, top cover 8, smoke backflow passage 7, partly form with the bottom 9 of annular fin 13, catalytic reaction body 6 etc.The whole similar large Rafael nozzle of burner, the purpose of ingehious design is so that forced draft obtains accelerating decompression in the burner throat region like this, so that fluid mixing region forms a negative pressure, thereby plays the purpose of injection backflow flue gas.
The diameter ratio of the height of shell 1 and shell 1 throat is 9:1, the diameter at shell 1 top and the diameter ratio of throat are 4:1, the upper surface diameter of catalytic reaction body 6 and the diameter ratio of throat are 3:1, the lower surface diameter of catalytic reaction body 6 and the diameter ratio of throat are 2.6:1, the diameter of top cover 8 is 1.4:1～1.6:1 with the direct ratio of throat, and the size of top cover 8 is to regulate according to required exhaust gas volumn.The thickness of catalytic reaction body 6 is 4～8cm, forms air-flow mixed zone 16 between catalytic reaction body 6 and throat, thereby the uniformity of mixing should enough be realized greatly in air-flow mixed zone 16, and the height of air-flow mixed zone 16 and the diameter ratio of throat are 3:1.
Fuel enters fuel channel 3 by fuel inlet pipe 4, by the fuel in the hot pre-heating fuel pipeline 3 of flame radiation, behind the fuel preheating, fluid tension reduces, at last, by fuel nozzle 10 ejections, the fuel after the atomizing enters air-flow mixed zone 16 to be mixed with flue gas and air fuel by fuel efferent duct 5.
Air enters burner by shell 1 bottom air intake 2, acceleration and pressure decrease in flow process, be mixed into air-flow mixed zone 16 in throat with the atomizing alcohol-group fuel that ejects, flue gas is spouting by fin channels 14, form a plurality of flue gas layer, fuel and air after the atomizing are injected flue gas layer, mix with flue gas and realize preheating.Mixed airflow after the preheating enters catalytic reaction body 6, is the Rafael nozzle of annular by the miniature catalysis passage of miniature catalysis passage 12(, realizes acceleration and pressure decrease), make H at miniature catalysis passage 12 interior realization catalytic reforming reactions
2 Miniature catalysis passage 12 is combined by ring-shaped pottery sheet 11, and to be coated with Ni catalyst based every annular potsherd 11 surface, and ring-shaped pottery sheet 11 is formed by connecting by potsherd 18, makes it into as a whole.Air-flow behind the catalytic reforming enters flame region 22 and realizes final combustion process.In the flame uphill process so that pressure decreased, can the ejection burner ambient air, realize completing combustion.
Internal layer flame is beaten on top cover 8, and deceleration is boosted, and four through holes by bracing frame 17 come together in top cover 8.Air-flow mixed zone 16 is subnormal ambient, so that top cover 8 interior stream pressures are greater than the pressure of air-flow mixed zone 16, so that producing, flue gas refluxes, flue gas flows to bottom 9 by smoke backflow passage 7, flue gas converges at this, and then the fin passage 14 by 13 of ring fins enters air-flow mixed zone 16 and finishes circulation.
The partly atomized particle of fuel nozzle 10 ejections collects on the bottom 9; and drop (liquid take-up reel 21 is arranged on the outer wall on fuel efferent duct 5 tops and is positioned at the throat below) in the liquid take-up reel 21, the part drop is dropped in the liquid take-up reel 20 (liquid take-up reel 20 is arranged on the inwall of shell 1 and is positioned at the throat top) in the air-flow mixed zone 16.The purpose of liquid take-up reel 20 and liquid take-up reel 21 is accepted liquid exactly, the temperature of air-flow mixed zone 16 can reach more than 200 ℃, under this temperature, the liquid in the liquid take-up reel can evaporate, and the alcohol-group fuel of evaporation reacts along with air-flow enters Catalytic Layer together.
In the miniature catalysis passage area of the above region division of burner throat, oxygen, fuel and backflow flue gas can be at miniature catalysis channel interior generation catalytic reforming reactions.Steam reforming and oxyreforming reaction mainly occur take ethanol as example in catalytic reforming reaction:
Steam reformation: CH
3CH
2OH+H
2O → 4H
2+ 2CO+256.8kJ/mol
CH
3CH
2OH+3H
2O→6H
2+2CO
2+174.2kJ/mol
Oxidation and reformation: CH
3CH
2OH+2H
2O+1/2O
2→ 5H
2+ 2CO
2-68.5kJ/mol
CH
3CH
2OH+H
2O+O
2→4H
2+2CO
2-311.3kJ/mol
Produce H
2Combustion intensity is increased, be conducive to the burning of fuel.And the H in the middle of the backflow flue gas
2The enough alcohol-group fuels of O are finished catalytic reforming reaction, do not need the adding of free moisture.
Liquid fuel atomizes with certain pressure, before alcohol-group fuel atomizes from fuel nozzle 10 ejections, also need by the fuel channel 3 of dish at shell 1 inwall, the part heat that utilizes Fire Radiation to produce, thereby improve the temperature of alcohol-group fuel, reducing the tension force of fuel, can be so that atomizing effect be better, and this part heat this be the dissipation tow taste heat, used by alcohol-group fuel, therefore, the Thermal Synthetic utilization ratio improves, and the fuel of preheating is directly from fuel nozzle 10 ejection atomizings.
The ingenious smoke reflux device that is provided with of burner, flame makes progress, and top cover 8 can converge the flue gas of beating on top cover 8, flue gas is finally collected in the top cover 8, and deceleration is boosted, and the pressure here is greater than the pressure of air-flow mixed zone 16, therefore, flue gas is back to air-flow mixed zone 16 by smoke backflow passage 7.This burner is ingenious size and the angle that top cover and ring fin are set also, so that alcohol-group fuel was finished vaporization (air-flow mixed zone temperature should be lower than approximately 50 ℃ of alcohol-group fuel burning-points) substantially before entering miniature catalysis passage.Increase the surface area of top cover, can increase the backflow flue gas amount, can choose by burning alcohol-group fuel type.
The narrowest part of miniature catalysis passage is less than 0.5cm, miniature catalysis passage 12 is combined by ring-shaped pottery sheet 11, and the channel types of formation is like a Rafael nozzle, and gaseous mixture accelerates decompression inside, pre-anti-backfire so not only, but also can strengthen the catalytic reaction that occurs with wall.Alcohol-group fuel three fluid streams after flue gas, air (inlet pressure should be more than the 3000Pa according to varying in size of burner), the atomizing enter and realize catalytic reforming reaction, the H that reforms and obtain in the miniature catalysis passage after mix the air-flow mixed zone
2And other gases enter flame region and burn.Alcohol-group fuel can produce the H of several times of unnecessary its molal quantitys
2Molecule, H
2Calorific value very high, be a kind of efficient fuel, and used heat and Fire Radiation heat that the reformation heat that miniature catalysis passage needs is utilized by flue gas heat, fuel channel, therefore, the introducing of catalytic reforming reaction layer so that efficiency of combustion improve.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. alcohol-based fuel burner is characterized in that: comprise hollow and profile be the shell (1) of goblet shape structure, the bottom of described shell (1) is air intake (2); The top of described shell (1) is the fuel channel (3) of helical structure along the inwall setting, the upper port of described fuel channel (3) is connected with fuel inlet pipe (4), and the lower port of fuel channel (3) is connected with fuel efferent duct (5); In shell (1) and be positioned between the throat of shell (1) and the fuel channel (3) catalytic reaction body (6) is set, smoke backflow passage (7) vertically is set in the described shell (1), described smoke backflow passage (7) passes catalytic reaction body (6), the top, top of smoke backflow passage (7) arranges top cover (8), and the bottom of smoke backflow passage (7) arranges bottom (9);
The throat that the outlet section of described fuel efferent duct (5) stretches to shell (1) straight up by the bottom of shell (1), the port of export of described fuel efferent duct (5) arranges fuel nozzle (10);
Described catalytic reaction body (6) is comprised of to setting gradually a plurality of ring-shaped pottery sheets (11) between shell (1) inwall the outer wall of smoke backflow passage (7), forms miniature catalysis passage (12) between the adjacent annular potsherd (11); Surface at ring-shaped pottery sheet (12) scribbles catalyst;
Described bottom (9) arranges a plurality of annular fins (13) from top to bottom in a circumferential direction, and fin passage (14) is set between the adjacent annular fin (13).
2. alcohol-based fuel burner according to claim 1 is characterized in that: the outward flange of described annular fin (13) upwards, and with the angle of level be 15 °.
3. alcohol-based fuel burner according to claim 1, it is characterized in that: the diameter ratio of the height of described shell (1) and shell (1) throat is 9:1, the diameter at shell (1) top and the diameter ratio of throat are 4:1, the upper surface diameter of catalytic reaction body (6) and the diameter ratio of throat are 3:1, the lower surface diameter of catalytic reaction body (6) and the diameter ratio of throat are 2.6:1, and the diameter of top cover (8) is 1.4:1～1.6:1 with the direct ratio of throat.
4. alcohol-based fuel burner according to claim 1, it is characterized in that: the thickness of described catalytic reaction body (6) is 4～8cm, form air-flow mixed zone (16) between catalytic reaction body (6) and throat, the height of described air-flow mixed zone (16) and the diameter ratio of throat are 3:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202229158U CN203203030U (en) | 2013-04-27 | 2013-04-27 | Alcohol group fuel burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202229158U CN203203030U (en) | 2013-04-27 | 2013-04-27 | Alcohol group fuel burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203203030U true CN203203030U (en) | 2013-09-18 |
Family
ID=49147135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202229158U Expired - Fee Related CN203203030U (en) | 2013-04-27 | 2013-04-27 | Alcohol group fuel burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203203030U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620599A (en) * | 2018-05-29 | 2018-10-09 | 葫芦岛市金景达清洁燃料有限公司 | A kind of device and method producing zinc powder using alcohol-based fuel |
| CN109855091A (en) * | 2019-04-08 | 2019-06-07 | 山西煜能科技开发有限公司 | A kind of gas-phase methanol atmospheric burner |
| CN110671698A (en) * | 2019-11-20 | 2020-01-10 | 郑州大学 | Alcohol-based fuel burner |
-
2013
- 2013-04-27 CN CN2013202229158U patent/CN203203030U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620599A (en) * | 2018-05-29 | 2018-10-09 | 葫芦岛市金景达清洁燃料有限公司 | A kind of device and method producing zinc powder using alcohol-based fuel |
| CN109855091A (en) * | 2019-04-08 | 2019-06-07 | 山西煜能科技开发有限公司 | A kind of gas-phase methanol atmospheric burner |
| CN110671698A (en) * | 2019-11-20 | 2020-01-10 | 郑州大学 | Alcohol-based fuel burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20140427 |