CN201254561Y - Gas generator - Google Patents
Gas generator Download PDFInfo
- Publication number
- CN201254561Y CN201254561Y CNU2008201262073U CN200820126207U CN201254561Y CN 201254561 Y CN201254561 Y CN 201254561Y CN U2008201262073 U CNU2008201262073 U CN U2008201262073U CN 200820126207 U CN200820126207 U CN 200820126207U CN 201254561 Y CN201254561 Y CN 201254561Y
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- gas generator
- reaction
- producer gas
- interstitital texture
- reaction zone
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Abstract
The utility model relates to a gas generating furnace which sequentially comprises a furnace hearth, a reaction zone and an air-guiding zone in the wall of a furnace body from down to up; wherein, a filling structure is arranged in the reaction zone, a plurality of channels for gas generating reaction are arranged in the filling structure, the furnace hearth is communicated with the air-guiding zone by the channels. From the above technical scheme, the gas generating furnace adopts a technical method of arranging the filling structure in the reaction zone, thus diminishing the reaction space of the reaction zone; under the circumstance that the quantity of reactants is invariable, the gas generating furnace can increase the pressure in the reaction space with the diminishing of the reaction space, thus increasing the contact probability among each reactant molecule and speeding up the reaction, and improving the reaction rate and the production quantity.
Description
Technical field
The utility model relates to a kind of producer gas generator, relates in particular to a kind of producer gas generator of circulating fluid bed type.
Background technology
Than burning of coal, the burning of coal gas more cleans, efficiently, so coal gas is just receiving more and more widely concern as a kind of clean energy.The producer gas generator that coal is converted to coal gas mainly can be divided into three major types: fixed bed, fluidized-bed and air flow bed.In the production process of reality, the gasification of fine coal is higher than the lump coal gasification efficiency, is the main gasification means of research at present and application.
The gasification principle that utilizes fine coal to produce coal gas is the reaction of coal and vaporized chemical, is the reaction of carbon, oxygen and water vapor in essence.In common producer gas generator, fine coal is fed in the producer gas generator, and vaporized chemicals such as water vapor, air are fed in the producer gas generator, then fine coal and vaporized chemical react, main reaction formula comprises the combustion reactions of carbon and oxygen, emits a large amount of heat energy, shown in (1):
C+O
2→CO
2+Q (1)
Wherein, heat is emitted in "+Q " representative.
Comprise that also carbonic acid gas and water vapor are the reaction of carbon monoxide and hydrogen by carbon reduction, the principal reaction formula is as shown in the formula shown in (2), (3) and (4):
CO
2+C→2CO-Q (2)
H
2O+C→H
2+CO-Q (3)
2H
2O+C→CO
2+2H
2-Q (4)
Wherein, " Q " representative absorbs heat.
Prior art can be circulating fluidized bed based on the employed producer gas generator of above-mentioned principle producing coal in next life gas, its general structure as shown in Figure 1, from bottom to up zone is followed successively by burner hearth 10, reaction zone 20 and air guide district 30 in body of heater 100 walls.Wherein, be provided with fine coal inlet 110 in the middle and lower part of body of heater 100 sidewalls, can claim coal inlet again; Be provided with first inlet mouth 120 in body of heater 100 bottoms, the air inlet first time that is fed mainly is an air, can claim air inlet again.In body of heater 100 walls on the lower side the zone that directly is communicated with fine coal inlet 110 and first inlet mouth 120, the space of portion be exactly burner hearth 10, provide pulverized coal friring required space, what mainly finish is above-mentioned reaction formula (1).Be provided with second inlet mouth 130 at the middle part of body of heater 100 sidewalls, the air inlet second time of feeding mainly is a water vapor, claims the water vapor import again.Above burner hearth 10, the zone that directly is communicated with second inlet mouth 130 is a reaction zone 20, provides carbonic acid gas, water vapor and carbon to finish the reaction compartment of above-mentioned reduction reaction formula (2)～(4).Be air guide district 30 above reaction zone 20, the top of body of heater 100 will be mingled with the gas mixture of solid particulate generally by pipe connection cyclonic separator 200, be commonly called as coal gas, be transferred in the cyclonic separator 200.The top of cyclonic separator 200 is provided with the derivation pipeline, the gas mixture separated is derived, and its lower end is drawn and mouthful is linked to each other with body of heater 100 by being arranged on returning of body of heater 100 middle parts, is used to guide unreacted solid particulate, mainly be fine coal, be circulated back to burning once more in the body of heater 100.
Prior art adopts the producer gas generator of said structure, the defective of its existence is: 1) fine coal, air and water vapor can periodically feed according to setting rule, also can periodically open when coal gas forms and derive pipeline to derive by cyclonic separator, in addition, the reduction reaction that reaction zone takes place is thermo-negative reaction, and the reversed reaction of combustion reactions or reduction reaction all is thermopositive reaction, so the temperature of reaction zone can periodically be communicated with extraneous along with producer gas generator, and the replacing generation of heat absorption/thermopositive reaction and the temperature fluctuation phenomenon occurs.Need improve the temperature of reaction zone when temperature descends from the heat energy that new dependence burning is emitted, under this low-temperature condition, reaction zone is difficult to react generation coal gas; 2) the reaction zone internal gas pressure is lower, so the molecule of carbonic acid gas, water vapor and carbon is difficult to fully contact to react, causes the reaction efficiency of producer gas generator generally not high.
The utility model content
The purpose of this utility model provides a kind of producer gas generator, to improve the reaction efficiency in the producer gas generator, improves turnout.
For achieving the above object, the utility model provides a kind of producer gas generator, in furnace body wall, comprise burner hearth, reaction zone and air guide district from bottom to up successively, wherein, be laid with interstitital texture in the reaction zone, be provided with a plurality of passages that the coal gas formation reaction is carried out that hold in this interstitital texture, this burner hearth and this air guide district are by the passage conducting.
By above technical scheme as can be known, the utility model adopts the technique means that interstitital texture is set in reaction zone, dwindled the real reaction space of reaction zone, under the constant situation of reaction volume, can with reaction compartment reduce to improve pressure in the reaction compartment, make each reactant molecule contact probability bigger, the carrying out of accelerated reaction, thereby improve the speed of reaction that coal gas generates, improve turnout.
Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.
Description of drawings
Fig. 1 is the structural representation of a kind of producer gas generator in the prior art;
Fig. 2 is the structural representation of the utility model producer gas generator specific embodiment one;
Fig. 3 is the structural representation of interstitital texture in the utility model producer gas generator specific embodiment one;
Fig. 4 is the structural representation of interstitital texture in the utility model producer gas generator specific embodiment two;
Fig. 5 is the structural representation of interstitital texture in the utility model producer gas generator specific embodiment three.
Among the figure:
10-burner hearth 20-reaction zone 30-air guide district
40-interstitital texture 100-body of heater 110-fine coal inlet
The 120-first inlet mouth 130-second inlet mouth 140-air guide port
The 200-cyclonic separator
Embodiment
Producer gas generator embodiment one
Be illustrated in figure 2 as the structural representation of the utility model producer gas generator specific embodiment one.Comprise burner hearth 10, reaction zone 20 and air guide district 30 from bottom to up successively in body of heater 100 walls of this producer gas generator.Burner hearth 10 wherein links to each other with first inlet mouth 120 that is arranged on body of heater 100 bottoms, be used for bubbling air, also links to each other with the fine coal inlet 110 that is arranged on body of heater 100 middle and lower parts.Can in burner hearth 10, carry out combustion reactions after feeding fine coal and air.Reaction zone 20 is positioned at the top of burner hearth 10, and reaction zone 20 links to each other with second inlet mouth 130 that is arranged on body of heater 100 sidewalls middle parts, be used to feed water vapor.The carbonic acid gas that burning back generates, under driving, warm air and bottom air stream swims in the coal dust of reaction zone 20 and the water vapor that feeds from second inlet mouth 130 can carry out the major ingredient carbon monoxide that reduction reaction generates coal gas in reaction zone 20, the gas mixture that then comprises carbon monoxide enters air guide district 30, be provided with air guide port 140 on the sidewall in body of heater 100 air guide districts 30, coal gas can be derived from air guide port 140.Burner hearth 10 in body of heater 100, reaction zone 20 and air guide district 30 are not proper division, just divide with the main reaction that takes place in it.In the reaction zone 20 of present embodiment producer gas generator, be laid with interstitital texture 40, promptly set up the interstitital texture 40 that together forms, as shown in Figure 3 by many strip filled poles.Filled pole belongs to multilayer, and the filled pole in every layer is parallel to each other, and the interlaced angle that is of the filled pole of each interlayer.Be formed with the slit of connection in each filled pole, this slit has promptly constituted passage.A plurality of passages in the interstitital texture 40 can hold the coal gas formation reaction to carry out within it.
The producer gas generator of present embodiment is provided with interstitital texture in reaction zone, reaction compartment only is the space of passage, in fact has been equivalent to dwindle the actual reaction compartment that provides of reaction zone.In the case, the amount of reactant does not change, the reactant of same amount carries out in littler reaction compartment, will certainly improve the pressure in the reaction compartment, distance between each molecule of reactant is reduced, and then the contact probability between the reactant molecule is bigger, has quickened the carrying out of reaction, make and react carry out more abundant, therefore can improve the speed of reaction of coal gas formation reaction.
In the present embodiment, it is parallel or staggered that the laying of filled pole is not limited to multilayer, and the purpose that interstitital texture is set is the segment space that takies in the reaction zone, and with channel connection burner hearth and air guide district.So the laying of filled pole can be decided as the case may be.
Temperature in the producer gas generator usually up to 1000 ℃ about, adopt resistant to elevated temperatures material to make so packing material is general, further, can adopt thermal conductivity heat-storing material less, that have heat accumulation function to prepare interstitital texture, for example material such as recrystallized silicon carbide.When the temperature in the reaction zone was higher, interstitital texture can be absorbed heat and accumulation of heat, and when because the entering of external substance, or because the endothermic heat of reaction reaction is when descending temperature, interstitital texture can be emitted heat energy as thermal source.Therefore, the existence of interstitital texture can reduce the temperature fluctuation of appearance in the reaction zone.In the time can stoping temperature in the reaction zone sharply to descend, what promptly can be reduction reaction provides the high temperature assurance, also is to be beneficial to the efficiency factor that the coal gas formation reaction is carried out smoothly, and carrying out that equally can accelerated reaction improved gas production efficient.
Producer gas generator embodiment two
The utility model producer gas generator specific embodiment two is with the difference of embodiment one: the interstitital texture 40 in the producer gas generator is honeycomb, and as shown in Figure 4, a plurality of through holes of the up/down perforation that is provided with in the honeycomb have promptly constituted passage.The staggered spherical pore that links to each other perhaps also can be set in the honeycomb, and then the passage in the interstitital texture 40 is formed by the spherical pore connection that is crisscross arranged in the honeycomb.The material of honeycomb also can be selected heat-storing material for use, for example cellular aluminum oxide.Usually, the material lower thermal conductivity calls lagging material, and thermal conductivity is called thermal insulation material at 0.05 watt/material below the Mi Du, and these materials all can have the accumulation of heat effect.
Interstitital texture in the present embodiment producer gas generator is identical with the principle of work of the foregoing description one, also can play the raising reaction zone pressure, reduces the reaction zone temperature fluctuation, finally improves speed of reaction, improves the purpose of turnout.
Producer gas generator embodiment three
The utility model producer gas generator specific embodiment three is with the difference of embodiment one: interstitital texture 40 comprises multilayer, also can be one deck fill-net, and the mesh that is provided with in the fill-net forms the passage in the interstitital texture 40.When being provided with the multilayer fill-net, as shown in Figure 5, the mesh in each layer fill-net, and the space between each layer fill-net of mesh connection can constitute passage.
Similarly, the fill-net of present embodiment also can adopt the heat-storing material preparation, can play the raising reaction zone pressure, reduces the reaction zone temperature fluctuation, finally improves speed of reaction, improves the purpose of turnout.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (8)
1, a kind of producer gas generator, in furnace body wall, comprise burner hearth, reaction zone and air guide district from bottom to up successively, it is characterized in that: be laid with interstitital texture in the described reaction zone, be provided with a plurality of passages that the coal gas formation reaction is carried out that hold in the described interstitital texture, described burner hearth and described air guide district are by described passage conducting.
2, producer gas generator according to claim 1 is characterized in that: described interstitital texture comprises many filled poles, and the gap between each described filled pole forms described passage.
3, producer gas generator according to claim 2 is characterized in that: described filled pole belongs to the stacked setting in a plurality of planes, and each the described filled pole in the same plane is parallel to each other.
4, producer gas generator according to claim 3 is characterized in that: be an angle setting between the filled pole of Different Plane.
5, producer gas generator according to claim 1 is characterized in that: described interstitital texture is a honeycomb, and described passage is the through hole of the up/down perforation that is provided with in the described honeycomb.
6, producer gas generator according to claim 1 is characterized in that: described interstitital texture is a honeycomb, and described passage is formed by the spherical pore connection that is crisscross arranged in the described honeycomb.
7, producer gas generator according to claim 1 is characterized in that: described interstitital texture comprises the fill-net that one deck is above, and the mesh that is provided with in the described fill-net forms described passage.
8, according to the described arbitrary producer gas generator of claim 1～7, it is characterized in that: the material of described interstitital texture is recrystallized silicon carbide or aluminum oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201262073U CN201254561Y (en) | 2008-07-01 | 2008-07-01 | Gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201262073U CN201254561Y (en) | 2008-07-01 | 2008-07-01 | Gas generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201254561Y true CN201254561Y (en) | 2009-06-10 |
Family
ID=40737879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201262073U Expired - Lifetime CN201254561Y (en) | 2008-07-01 | 2008-07-01 | Gas generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201254561Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307260B (en) * | 2008-07-01 | 2012-10-24 | 广东科达机电股份有限公司 | Gas generator |
-
2008
- 2008-07-01 CN CNU2008201262073U patent/CN201254561Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307260B (en) * | 2008-07-01 | 2012-10-24 | 广东科达机电股份有限公司 | Gas generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090807 Address after: Guangzhou Long Industrial Park, Chencun Town, Shunde District, Guangdong, Foshan province 528313 Co-patentee after: Ma'anshan New Power Jieneng Co., Ltd. Patentee after: Guangdong Koda mechanical and electrical Limited by Share Ltd Address before: Guangzhou Long Industrial Park, Chencun Town, Shunde District, Guangdong, Foshan province 528313 Patentee before: Guangdong Keda Electromechanical Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528313, Foshan, Guangdong province Shunde District Chencun Town Long Industrial Park Patentee after: Guangdong Keda Electromechanical Co., Ltd. Patentee after: Maanshan KEDA Clean Energy Co., Ltd. Address before: 528313, Foshan, Guangdong province Shunde District Chencun Town Long Industrial Park Patentee before: Guangdong Keda Electromechanical Co., Ltd. Patentee before: Ma'anshan New Power Jieneng Co., Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Maanshan KEDA Clean Energy Co., Ltd. Assignor: Guangdong Keda Electromechanical Co., Ltd. Contract record no.: 2010340000003 Denomination of utility model: Closed mixed gas generating furnace Granted publication date: 20090610 License type: Exclusive License Record date: 20100317 |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528313, Foshan, Guangdong province Shunde District Chencun Town Long Industrial Park Co-patentee after: Ma'anshan Keda Clean Energy Co., Ltd. Patentee after: Guangdong Keda Electromechanical Co., Ltd. Address before: 528313, Foshan, Guangdong province Shunde District Chencun Town Long Industrial Park Co-patentee before: Maanshan KEDA Clean Energy Co., Ltd. Patentee before: Guangdong Keda Electromechanical Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20090610 Effective date of abandoning: 20080701 |
|
| RGAV | Abandon patent right to avoid regrant |