CN201915070U - Gasification combustor for high-energy biomass - Google Patents
Gasification combustor for high-energy biomass Download PDFInfo
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- CN201915070U CN201915070U CN2010206285172U CN201020628517U CN201915070U CN 201915070 U CN201915070 U CN 201915070U CN 2010206285172 U CN2010206285172 U CN 2010206285172U CN 201020628517 U CN201020628517 U CN 201020628517U CN 201915070 U CN201915070 U CN 201915070U
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Abstract
The utility model relates to a gasification combustor for high-energy biomass, which comprises a cavity body and a hollow cylindrical combustion chamber; the combustion chamber is communicated with a feeding pipe and an air outlet pipe; the air outlet pipe is transversely arranged in the center of the combustion chamber; the left end of the air outlet pipe is arranged in the combustion chamber taken as an internal end; the right end of the air outlet pipe is extended out of the combustion chamber taken as an extended end; a wind chamber is arranged between the cavity body and the combustion chamber and is connected with a wind pipe; the air outlet pipe is provided with a plurality of gas discharge holes; the gas discharge holes are communicated with air outlet holes through the wind chamber so that oxygen is supplemented to clean biomass fuel gas before entering a boiler in order to obtain more energy, promote the biomass fuel gas to be fully combusted in the boiler and produce the maximum combustion energy of the boiler.
Description
Technical field
The invention belongs to energy preparation field, specifically relate to a kind of combustion equipment of gasifying biomass.
Background technology
Along with the continuous development of world economy, the energy and environmental problem become increasingly conspicuous.The human main energy sources of using at present has 3 kinds of oil, Sweet natural gas and coals.According to the International Energy Agency statistics, these 3 kinds of energy have only respectively about 35 years, 50 years and 240 years for the time limit of human exploitation on the earth.Fossil resources such as coal, oil exhaust the power supply constant tension day by day on the one hand; On the other hand, the excessive use of fossil resource has caused serious environmental problem day by day.Therefore, develop and seek new substitute energy and become the key subjects that human social must be solved in the new millennium.
Biomass energy is the sun power that is stored in by the photosynthesis of plant and sun power in the plant.According to estimates, the annual energy of storing of plant is equivalent to 10 times that world's main fuel consumes, and is less than 1% of its total amount as the utilization of the energy.Characteristics such as biomass material is because of having the volatility height, and carbon is active high, and N, S content are low, and ash content is low are a kind of fine fuel.By the biomass energy switch technology, can utilize this reproducible clean biomass energy efficiently, substitute fuel such as coal, oil and natural gas.
At present, utilize biomass material, as straw, sawdust, bagasse, rice chaff, wood chip etc., it is carried out high-temp combustion after, can extract bio-oil or biological fuel gas.And existing combustion technology mainly is fire grate grate firing burning and fluidized bed combustion, wherein, adopting the shortcoming of fire grate grate firing enamelware pot is that fuel combustion is incomplete, thermo-efficiency is low, and the employing fluid-bed combustion furnace generally can only be applied to large-sized boiler, and its investment is huge, the production cost height can not be tried hard to recommend application greatly in medium-sized and small enterprises.The energy of the biogas of two kinds of combustion technology generations is lower, is unfavorable for supplying with the high efficiency boiler burning.
Summary of the invention
In order to solve the problem that prior art exists, the invention provides a kind of burner that can produce the high-energy biogas.
To achieve these goals, technical scheme of the present invention is as follows: comprise cavity, the throat less chamber of hollow, the combustion chamber is communicated with feed-pipe and escape pipe, it is characterized in that, described escape pipe is horizontally set at the center of combustion chamber, and the left end of escape pipe places the combustion chamber to be built-in end, and the right-hand member of escape pipe stretches out and is external part outside the combustion chamber; Have air compartment between described cavity and the combustion chamber, described air compartment is connected with airduct, and described escape pipe is provided with the plurality of rows production well, and described air compartment is connected with production well.
The tube wall of the built-in end of described escape pipe is provided with some through holes.
The axial inwall of described feed-pipe and the cross section inwall of combustion chamber are tangent, and after wind was tangentially sent into the combustion chamber from feed-pipe, the self-forming whirlwind burnt for biomass material, and separates ash discharge under the centrifugal force of whirlwind, makes clean biogas.
Form air compartment between described cavity and the combustion chamber, described air compartment is connected with airduct, the inlet of described airduct connects ventilating regulator, an intake opening has been opened in described combustion chamber, the axial inwall of described intake opening and the cross section inwall of combustion chamber are tangent, tangentially enter the wind of combustion chamber from air compartment, the self-forming whirlwind replenishes required air for the combustion chamber and the combustion chamber internal temperature is regulated.
Described air compartment is provided with dividing plate, and air compartment is divided into secondary air chamber and tertiary chamber, and described airduct is made up of secondary air channel and tertiary-air pipe; Described secondary air chamber is connected with secondary air channel, the inlet of described secondary air channel connects ventilating regulator, described combustion chamber offers an intake opening, the axial inwall of described intake opening and the cross section inwall of combustion chamber are tangent, tangentially enter the wind of combustion chamber from air compartment, the self-forming whirlwind replenishes desired gas for the combustion chamber and the combustion chamber internal temperature is regulated; Described tertiary chamber is connected with tertiary-air pipe; The tube wall of the external part of described escape pipe offers production well; Described tertiary chamber is communicated with production well.
The evenly distributed layout of production well on the described air outlet tube.
The outer setting of described cavity has thermal insulation layer, and the main body of described combustion chamber is a flame retardant coating.
Also comprise lighter for ignition and explosive door.
Burner also offers fire door, and described fire door is equipped with bell, and the top of described fire door is provided with form.
Also include the base that can make burner move or load and unload, be used to detect the detection means of chamber temperature.
The present invention is owing to be provided with air chamber, to entering the clean biological fuel gas supplemental oxygen before the boiler, makes the acquisition more energy, promotes biogas fully burning in boiler, the boiler combustion energy that performance is maximum.
Description of drawings
Fig. 1 is the internal structure of burner of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the structural relation synoptic diagram of feed-pipe and combustion chamber;
Fig. 5 is the structural relation synoptic diagram of intake opening and combustion chamber;
Fig. 6 is the cross sectional representation of escape pipe.
Embodiment
This burner is a heat-storage type burner, and the diameter of combustion chamber is 0.8m, and capacity is 0.75m
3As Figure 1-3, this burner is made up of base 12, cavity 20, thermal insulation layer 11, flame retardant coating 9, lighter for ignition 18, feed-pipe 15, secondary air channel 19, dividing plate 5, tertiary-air pipe 17, escape pipe 8, bell 10, form 1 and explosive door 13.The burner body structure is by base 12 support fixation.Cavity 20 is hollow circle tube, the accumbency setting.The inside of cavity 20 is provided with flame retardant coating 9, and this flame retardant coating 9 also is the hollow cylinder structure.The hollow cylinder structure of flame retardant coating 9 has formed combustion chamber 2.Combustion chamber 2 is communicated with the axial inwall of this feed-pipe 15 and the lateral cross section inwall of combustion chamber 2 tangent (as Fig. 4) with the feed-pipe 15 that cavity 20 is provided with.The inwall of the outer wall of flame retardant coating 9 and cavity 20 has the space, and this space has formed air compartment.The inside of cavity 20 and in the left side of flame retardant coating 9 is provided with thermal insulation layer 11.The left end of combustion chamber 2 is provided with a fire door, and by bell 10 sealings.Be positioned at the top of fire door, also be provided with a form 1, be used to observe the combustion case in the burner, the unusual phenomenon when in time finding burning.The axis direction of combustion chamber 2 and be positioned at right side place arranged transversely one escape pipe 8 of combustion chamber 2, escape pipe 8 and combustion chamber 2 concentric settings, this escape pipe 8 is the direct piping of both ends open, the diameter of pipeline is 0.4m.It is built-in end that the left end of escape pipe 8 inserts in 2 inside, combustion chamber, the distance of the inner left wall of the left port of built-in end and combustion chamber 2 is 500mm, the right-hand member of escape pipe 8 extends outside the combustion chamber 2 and exposes to outside the cavity 20 is external part, and the external part of escape pipe 8 is connected with the inlet of boiler (not shown).The external part tube wall of escape pipe 8 offers 8 and discharges pore 16 (as Fig. 6), and every discharge pore 16 is evenly arranged on the cross section of escape pipe 8, and the quantity of every discharge pore 16 is 3, and production well 16 is communicated with tertiary chamber 6.Space between the inwall of the outer wall of flame retardant coating 9 and cavity 20 has formed air compartment, be divided into secondary air chamber 4 and tertiary chamber 6, secondary air chamber 4 and tertiary chamber 6 are separated by dividing plate 5, and dividing plate also plays the effect of supporting the combustion chamber except forming secondary air chamber 4 and tertiary chamber 6.The outside of secondary air chamber 4 connects secondary air channel 19, and the inlet of secondary air channel 19 connects ventilating regulator, and ventilating regulator can be chosen butterfly valve (not shown) etc.One intake opening 14 is set, the axial inwall of this intake opening 14 and the lateral cross section inwall of combustion chamber 2 tangent (as Fig. 5) between secondary air chamber 4 and the combustion chamber 2.The outside of tertiary chamber 6 connects tertiary-air pipe 17.Burner is provided with lighter for ignition 18, when working first, utilizes coal gas ignition that the combustion chamber is risen 400 ℃, begins the whirlwind charging then.Also be provided with temperature detection device in the combustion chamber 2, can be thermopair 3, be used for measuring the furnace temperature of combustion chamber, generally surpass 1000 ℃ and promptly report to the police.Open bell 10 and just can conveniently be cleaning lime-ash in the combustion chamber 2.Base 12 can make things convenient for the dismounting of burner and move.Explosive door 13 is in order to prevent the burner hypertonia, when internal pressure of combustion chamber surpasses 0.01Mpa, opens the explosive door relief pressure, can prevent superpressure and blasts and cause Peril Incident.
The working process of burner is as follows: at first initial igniter 18, after the burning room temp reaches more than 400 ℃, biomass material is after crushed tangentially blown into combustion chamber 2 from feed-pipe 15 by a wind, in combustion chamber 2 through forming biological fuel gas and some biomass ashes (as silicon-dioxide and metal-salt etc.) behind 1 to 2 second high temperature (900～1000 ℃) gasification, and combustion.In combustion processes, because a wind is tangentially to enter the combustion chamber, therefore can in columnar combustion chamber 2, form whirlwind, under the centrifugal action of whirlwind, the grey separated and following bottom that is sunken to the combustion chamber that burning generates, the clean biological fuel gas of combustion chamber 2 axis centre then enters in the boiler by escape pipe 8.Simultaneously, 19 pairs of secondary air chambers of secondary air channel 4 continue air-supply, and enter combustion chamber 2 by intake opening 4 tangential air-supplies, form whirlwind with the required oxygen of gasification incomplete combustion in the aftercombustion chamber 2.Through burning after a while,, then can reach fusion point of ash and slagging scorification easily if the temperature in the combustion chamber 2 surpasses 1000 ℃.After thermopair 3 detects too high temperature, reduce the air quantity that enters secondary air chamber 4 with butterfly valve control, thereby reduce the combustion chamber amount of oxygen, be lower than 1000 ℃ to guarantee the burning room temp.Before clean biological fuel gas enters boiler, also biological fuel gas is replenished air (oxygen), promptly tertiary air enters tertiary chamber from tertiary-air pipe 17, mixes with biological fuel gas by tertiary air, make and together enter fully burning in the boiler, to obtain boiler of feeding burning more heat.
Claims (10)
1. biomass gasification fired device of high-energy, comprise cavity, the throat less chamber of hollow, the combustion chamber is communicated with feed-pipe and escape pipe, it is characterized in that, described escape pipe is horizontally set at the center of combustion chamber, and the left end of escape pipe places the combustion chamber to be built-in end, and the right-hand member of escape pipe stretches out and is external part outside the combustion chamber; Have air compartment between described cavity and the combustion chamber, described air compartment is connected with airduct, and described escape pipe is provided with the plurality of rows production well, and described air compartment is connected with production well.
2. burner according to claim 1 is characterized in that the tube wall of the built-in end of described escape pipe is provided with some through holes.
3. burner according to claim 1, it is characterized in that: the axial inwall of described feed-pipe and the cross section inwall of combustion chamber are tangent, after wind is tangentially sent into the combustion chamber from feed-pipe, the self-forming whirlwind is for the biomass material burning, and under the centrifugal force of whirlwind, separate ash discharge, make clean biogas.
4. according to claim 1 or 3 described burners, it is characterized in that, the inlet of described airduct connects ventilating regulator, an intake opening has been opened in described combustion chamber, the axial inwall of described intake opening and the cross section inwall of combustion chamber are tangent, tangentially enter the wind of combustion chamber from air compartment, the self-forming whirlwind replenishes required air for the combustion chamber and the combustion chamber internal temperature is regulated.
5. burner according to claim 4 is characterized in that described air compartment is provided with dividing plate, and air compartment is divided into secondary air chamber and tertiary chamber, and described airduct is made up of secondary air channel and tertiary-air pipe; Described secondary air chamber is connected with secondary air channel, and the inlet of described secondary air channel connects ventilating regulator, and described tertiary chamber is connected with tertiary-air pipe; The tube wall of the external part of described escape pipe offers production well; Described tertiary chamber is communicated with production well.
6. burner according to claim 5 is characterized in that, the evenly distributed layout of the production well on the described air outlet tube.
7. burner according to claim 1 is characterized in that the outer setting of described cavity has thermal insulation layer, and the main body of described combustion chamber is a flame retardant coating.
8. burner according to claim 1 is characterized in that, also comprises lighter for ignition and explosive door.
9. burner according to claim 1 is characterized in that burner also offers fire door, and described fire door is equipped with bell, and the top of described fire door is provided with form.
10. burner according to claim 1 is characterized in that, also includes the base that can make burner move or load and unload, and is used to detect the detection means of chamber temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206285172U CN201915070U (en) | 2010-11-25 | 2010-11-25 | Gasification combustor for high-energy biomass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206285172U CN201915070U (en) | 2010-11-25 | 2010-11-25 | Gasification combustor for high-energy biomass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201915070U true CN201915070U (en) | 2011-08-03 |
Family
ID=44414878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206285172U Expired - Lifetime CN201915070U (en) | 2010-11-25 | 2010-11-25 | Gasification combustor for high-energy biomass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201915070U (en) |
-
2010
- 2010-11-25 CN CN2010206285172U patent/CN201915070U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110803 Effective date of abandoning: 20130327 |
|
| RGAV | Abandon patent right to avoid regrant |