CN201343523Y - Multi-wind-distribution fixed bed biomass gasification furnace - Google Patents
Multi-wind-distribution fixed bed biomass gasification furnace Download PDFInfo
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- CN201343523Y CN201343523Y CN 200920050433 CN200920050433U CN201343523Y CN 201343523 Y CN201343523 Y CN 201343523Y CN 200920050433 CN200920050433 CN 200920050433 CN 200920050433 U CN200920050433 U CN 200920050433U CN 201343523 Y CN201343523 Y CN 201343523Y
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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
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Abstract
The utility model discloses a multi-wind-distribution fixed bed biomass gasification furnace, which comprises a furnace body and a fire grate, the fire grate is arranged at middle of the furnace body, a forced air intake system is arranged on the furnace body, the forced air intake system comprises an wind-supplying mechanism, a wind distribution device and a connection pipe, the wind distribution device is a wind distribution pipe which is arranged above the fire grate in the furnace body and supplies wind into the furnace at multiple directions, the wind-supplying mechanism is arranged outside the furnace body, and is connected with the wind distribution pipe through the connection pipe passing through the furnace wall, thereby providing forced wind source in the furnace. The utility model employs a forced air intake mode using the wind-supplying mechanism and the wind distribution device to supply wind, compared with the existing atmospheric pressure air intake mode, power of the gasification furnace is increased, tar content in the combustible gas is reduced, tar quantity in sewage is greatly reduced, which is favorable to environmental protection. The utility model has no especial requirement on size, drying degree and charging mode of the biomass raw material, thereby widening application range of the biomass raw material.
Description
Technical field
The utility model relates to a kind of biomass gasifying furnace, particularly a kind of multi-directional air distribution fixed bed biomass gasification stoves.
Background technology
But hydrocarbon polymer such as biomass, coal is directly or indirectly by a most important class stored energy source that photosynthesis produced on the earth, especially biomass energy, inexhaustible because of it, become mankind nowadays one of the renewable energy source of worth development and utilization.
Gasification is one of important way of biomass energy and coal conversion using, fixed-bed gasification furnace is to adopt gasification mode to containing the minimum gasification type of furnace of hydrocarbon property of raw material requirement, yet existing fixed bed biomass gasifying stove is owing to adopt the normal pressure intake method, thereby has following defective:
(1) the air feed oxygen supply quantity not sufficient in the vapourizing furnace, cloth wind is very inhomogeneous, can't improve the power of vapourizing furnace by the participation reacting weight that increases raw material, so the power of gerotor type fixed bed biomass gasification furnace is generally less than 300KW, efficient is lower, and the body of heater of vapourizing furnace is very huge, also has the potential safety hazard of external flame;
(2) because the gasification of raw material is a low temperature gasification under normal pressure, therefore react insufficient, intensity is not high, thereby produces a large amount of tar, biomass dust in tar and the combustion gas mixes and forms firm tar lump easily, causes line clogging or structure deteriorate; In addition, when combustion gas is cooled, can produce the sewage that contains tar in a large number, this sewage is difficult to purify and utilizes, therefore is unfavorable for environment protection;
(3) because defective such as existing vapourizing furnace exists that power is little, oxygen supply is not enough and tar content is big, therefore vapourizing furnace is to the also corresponding raising of the requirement of raw material, generally raw material is had following requirement: the raw material volume is little, dry, make things convenient for charging and raw material to enter is difficult for putting up a bridge behind the body of heater etc., therefore the practicality of vapourizing furnace is relatively poor, and above requirement has also caused great restriction to the extensive utilization of biomass energy.
The utility model content
The purpose of this utility model is to provide a kind of can be improved vapourizing furnace power, reduces the tar generation and be suitable for the multi-directional air distribution fixed bed biomass gasification stoves that various biomass materials gasify.
The purpose of this utility model realizes by following technical measures: a kind of multi-directional air distribution fixed bed biomass gasification stoves, comprise body of heater and fire grate, described fire grate is arranged on the middle part of described body of heater, it is characterized in that described body of heater is provided with the forced air inlet system, described forced air inlet system comprises wind sector, air-distributing device and connecting leg, described air-distributing device is the wind-distributing pipe road to the multi-faceted air intake of stove that is positioned at body of heater fire grate top, described wind sector is positioned at outside the body of heater, be connected with described wind-distributing pipe road by the connecting leg that passes the furnace wall, thereby for the pressure wind regime is provided in the stove.
The utility model adopts the forced air inlet mode of wind sector in conjunction with the air-distributing device air feed, by air-distributing device air intake in body of heater, compares with existing normal pressure air intake mode, increased oxygen-supplying amount, strengthen the response intensity of biomass material, simultaneously, improved the power of vapourizing furnace; Because sufficient reacting, can reduce the tar content in the inflammable gas, the combustion gas that vapourizing furnace is produced is difficult for pipeline, the equipment of flowing through is damaged when mobile, and when combustion gas carried out condensation, tar content in the sewage also reduces significantly, helps environment protection; In addition, because the utility model can be realized high-power air feed, the oxygen supply abundance is not so there are the special requirement of aspects such as size, ridity, feeding manner to biomass material, thereby widened the scope of application of biomass material, make extensive use biomass energy become possibility.
The utility model can be done following improvement: described air-distributing device can adopt circulating line formula cloth wind structure, described circulating line formula cloth wind structure is provided with several wind distributing holes at least one ring pipe, the looping wind-distributing pipe, described annular wind-distributing pipe is arranged on the inwall of described body of heater, and described annular wind-distributing pipe is realized and being connected of body of heater described wind sector outward by being connected with the connecting leg that passes furnace body wall.
After the utility model adopts circulating line formula cloth wind structure, by wind sector air is sent in the annular wind-distributing pipe, air enters in the body of heater from a plurality of directions of wind distributing hole that distribute along annular wind-distributing pipe again, having guaranteed in abundant air feed can even distributing wind, the utility model can also increase a plurality of annular wind-distributing pipes according to the difference of raw material, promptly it vertically sets gradually two or more annular wind-distributing pipes in the inboard wall of furnace body upper edge, these a plurality of annular wind-distributing pipes are connected with wind sector respectively, can improve the power of vapourizing furnace.
The utility model can further be done following improvement: the wind distributing hole on the described annular wind-distributing pipe is to offer towards the annulus axis direction of described ring pipe, be that wind distributing hole is on the inner edge surface of described ring pipe, both can centering horizontal direction opening, also can centering make progress or downward inclined open, can also on a circulating line, be provided with above-mentioned two or more towards the wind distributing hole that matches arbitrarily, so that adapt to the demand of plurality of raw materials and design.
As another kind of innovative approach of the present utility model, described air-distributing device can also adopt straight pipe type cloth wind structure, described straight pipe type cloth wind structure is provided with several wind distributing holes at least one straight tube, constitute cloth wind straight tube, described cloth wind straight tube can horizontal or oblique being arranged on the described furnace body wall, its at least one end is connected with the connecting leg that passes described furnace body wall, so that be connected with body of heater described wind sector outward.
As embodiment of the present utility model, wind distributing hole on the described cloth wind straight tube can horizontal direction or is oblique or upwards offer, also can adopt aforesaid towards any two kinds or three kinds match and offer, so that adapt to plurality of raw materials situation or design requirements, realize strengthening the purpose of gasification reaction intensity.
Wind sector of the present utility model is sent into air in the cloth wind straight tube by connecting leg, and the air wind distributing hole from the cloth wind straight tube again blows in the body of heater, plays fully and the effect of even distributing wind; Cloth wind straight tube can carry out dismounting outside body of heater, and need not to lift body of heater, therefore is easy to safeguard replacing; Cloth wind straight tube is more than two, and during comparatively small amt, can adopt and in body of heater, arrange the structure of putting or being staggeredly placed side by side, otherwise quantity can adopt the cloth wind straight tube formed fenestral fabric that is staggeredly placed more for a long time, the quantity of cloth wind straight tube and the selection of caliber will be according to raw material reaction and the decisions of cindery characteristics, if cindery size is big or bridging easily, the layout of cloth wind straight tube is thinner relatively, otherwise closeer.
As improvement of the present utility model, described air-distributing device can also adopt overhead duct type cloth wind structure, described overhead duct type cloth wind structure is that at least one airduct stretches to fire grate downwards from described upper of furnace body, constitute the overhead wind-distributing pipe, the upper orifice of described overhead wind-distributing pipe is connected by the outer described wind sector of connecting leg and body of heater.
Wind sector of the present utility model is sent into air in the overhead wind-distributing pipe, and air is entered in the body of heater by its lower nozzle again, plays the effect of abundant air feed, and the plenum system of overhead wind-distributing pipe is an air feed from top to bottom; The overhead wind-distributing pipe then can be selected to enter in the body of heater from the upper portion side wall of body of heater or from the body of heater open top.
As a kind of improvement of the present utility model, the lower nozzle of described overhead wind-distributing pipe is provided with ventilation terminal, described ventilation terminal is the hollow ball-shape structure, and described ventilation terminal wraps up the lower nozzle of described overhead wind-distributing pipe fully, is distributed with wind distributing hole on the sphere of described ventilation terminal.Air enters in the ventilation terminal from the lower nozzle of overhead wind-distributing pipe, is blown in the body of heater by wind distributing hole again, and the structure of ventilation terminal makes the overhead wind-distributing pipe can carry out multidirectional cloth wind, thereby it is more even that the intravital air distribution of stove is got, and helps the abundant reaction of raw material.
As improvement of the present utility model, described air-distributing device adopts cannula type cloth wind structure, and described cannula type cloth wind structure has two intubate at least, and an end of every intubate is connected as a single entity with the connecting leg that passes furnace body wall, the other end then stretches in the space, the intravital middle and upper part of stove, constitutes cloth wind intubate.Air is entered in the cloth wind intubate by wind sector, and enters in the body of heater from its mouth of pipe that stretches into part.
As a kind of embodiment of the present utility model, described cloth wind intubate stretch into the part and inboard wall of furnace body between angle greater than 0 ° and less than 180 °, preferred implementation of the present utility model is that this angle is 30～135 °.When adopting heavier biomass material such as wooden unit, the preferred value of above-mentioned angle is 45 °.
As a kind of embodiment of the present utility model, described cloth wind intubate is arranged around a circle of furnace body wall, and is at least a circle.According to raw materials used characteristic, the mode that cloth wind intubate can take multi-turn to arrange is to increase the response intensity of raw material.
As embodiment of the present utility model, the cloth wind intubate in the described same circle stretches into the intravital length of pipe section of stove both can be identical, also can be different, perhaps adopt length mode spaced apart.Adopt that one is long and the other is short decoration form at interval can satisfy the different requirements of raw material diversification.
The quantity of cloth wind intubate and size are selected according to the physical dimension of raw material in the utility model, fundamental principle is: if raw material is put up a bridge easily, for example straw will be selected the cloth wind intubate that size is little, length is short, simultaneously, also to consider the size of furnace diameter, if furnace diameter is big, the length of cloth wind intubate will suitably increase, and size is also wanted corresponding increase, thereby both can avoid putting up a bridge, and can guarantee wind supply quantity again.
As embodiment of the present utility model, described wind sector comprises drive-motor, blower fan, air feed pipe and temperature-detecting device, described blower fan and air-distributing device are by described air feed pipe coupling, described temperature-detecting device comprises temperature sensor and controller, described controller is located on the described drive-motor, described temperature sensor then places in the described body of heater and is positioned on the described air-distributing device, described temperature sensor is experienced the interior temperature of body of heater and is sent temperature signal to controller, flow to the air output of air-distributing device with the control blower fan, thereby realize the temperature control in the stove.When adopting different air-distributing devices, temperature sensor lays respectively on described annular wind-distributing pipe, cloth wind straight tube, overhead wind-distributing pipe or the cloth wind intubate.
The utility model utilizes temperature-detecting device can guarantee the temperature of reaction in differential responses zone in the body of heater, realizes temperature automatically controlled function; In addition, can be a total information processing system also with the set of each temperature-detecting device, the temperature signal of each temperature sensor is gathered, thereby realize the purpose of air intake and controlled temperature in the across-the-board regulation stove.
The air feed pipe of described wind sector is the total air feed pipe that is positioned at the ring structure of body of heater periphery, and described total air feed pipe is connected by the interior air-distributing device of described connecting leg and stove.Air is entered in total air feed pipe by wind sector, is transported in the air-distributing device from connecting leg, and blows to body of heater from air-distributing device.
As a kind of improvement of the present utility model, also be laid with resistant to elevated temperatures lagging material on the pipe outer wall of described annular wind-distributing pipe, cloth wind straight tube, overhead wind-distributing pipe or cloth wind intubate.Lagging material is high temperature resistant, has avoided above-mentioned pipeline to be positioned at the intravital pipeline section of stove and has suffered that high temperature damages, and guarantees that air-distributing device can works better.
Multi-directional air distribution fixed bed biomass gasification stoves described in the utility model can be upflow fixed bed vapourizing furnace, down-flow fixed bed vapourizing furnace or cross-flow type fixed-bed gasification furnace.The characteristics of upflow fixed bed vapourizing furnace are that vaporized chemical flows from bottom to top, and inflammable gas is discharged from upper of furnace body; The characteristics of down-flow fixed bed vapourizing furnace are that vaporized chemical from top to bottom flows, and inflammable gas is discharged from the body of heater bottom; The characteristics of cross-flow type fixed-bed gasification furnace are that vaporized chemical is supplied with by body of heater one side, and inflammable gas is from the opposite side outflow of body of heater.Because different air-distributing devices of the present utility model meet the plenum system of above-mentioned three kinds of type of furnaces separately, inflammable gas outlet therefore of the present utility model can be opened in according to the difference of air inlet device on the different positions of body of heater, forms upflowing, downflow system or cross-flow type fixed-bed gasification furnace thus.
The position that air-distributing device of the present utility model is located on the body of heater can be adjusted according to the different of raw material with height, does not have restricted regulation, and whether mainly can fully carry out with reaction is foundation; The thickness of pipe of each pipeline in the utility model will be selected according to the granularity of raw material and weight, if raw materials size is big, and Heavy Weight, the hardness height then need be selected thick-walled tube, is smashed when the charging to avoid pipeline.
In addition, the temperature of reaction in the stove will be according to the difference of raw material and specifically determine that rule is: reaction is wanted fully, the utilization ratio of raw materials height.When above various air-distributing devices use on the vapourizing furnace of different size, can adopt the cloth wind mode of above-mentioned one or more combinations of air-distributing device, supply gas pressure can be adjusted as required, for stove directly is little internal diameter vapourizing furnace below the 1.2m, can select above one to three kind air-distributing device, stove directly is the above large diameter vapourizing furnace of 1.2m, then can select above one to four kind air-distributing device.
The biomass material type that the utility model was suitable for is very extensive, can adopt for example cotton stalk, husk, straw, rape stalk, branch, bark, wood processing scrap stock, rubbish from cooking etc.; In addition, can also be applicable to the drying of the solid matter of the gasification of the gasification of coal, the industrial refuse of hydrocarbon class etc. and common mode.
Compared with prior art, the utlity model has following significant effect:
(1) the utility model adopts the forced air inlet system, has increased the response intensity of vapourizing furnace, has improved the gas production rate of unit vapourizing furnace, has increased the power of vapourizing furnace;
(2) after the utility model adopts and carry out the air-distributing device of multi-faceted cloth wind in body of heater, can form laminates wind, make the intravital oxygen uniform distribution of stove on the one hand, help reaction evenly fully, the length of oxidation panel be can prolong on the other hand, the gas production rate of vapourizing furnace and the power of increase vapourizing furnace further improved;
(3) because the prolongation of oxidation zone has relatively reduced the requirement to raw material granularity and water ratio etc., improved the suitability of vapourizing furnace to raw material;
(4) the utility model can adopt automatic temperature-controlled mode, keeps and guaranteed the steady operation of vapourizing furnace, has guaranteed the overall performance of whole vapourizing furnace directly or indirectly;
(5) the utility model has improved the temperature of reaction in the stove, has reduced the generation of tar, and on the one hand, the utilization of inflammable gas after helping gasifying on the other hand, owing to the sewage that the cooling combustion gas produces also is convenient to handle, helps environment protection;
(6) the utility model adopts laminates wind, wind-distributing pipe road dispersive structure, can solve the bridging problem of raw material effectively, has therefore increased the suitability of same vapourizing furnace to various different physical dimension raw materials.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the one-piece construction synoptic diagram of the utility model embodiment 1;
Fig. 2 is the schematic top plan view that annular wind-distributing pipe is connected with wind sector among Fig. 1;
Fig. 3 is the schematic top plan view that annular wind-distributing pipe is connected with total air feed pipe among the utility model embodiment 2;
Fig. 4 is the one-piece construction synoptic diagram of the utility model embodiment 3;
Fig. 5 is the schematic top plan view that cloth wind straight tube is connected with total air feed pipe among Fig. 4;
Fig. 6 is the one-piece construction synoptic diagram of the utility model embodiment 4;
Fig. 7 is the schematic top plan view that cloth wind intubate is connected with total air feed pipe among Fig. 6;
Fig. 8 is the schematic top plan view that cloth wind straight tube is connected with total air feed pipe among Fig. 6.
Embodiment
As shown in Figures 1 and 2, be the embodiment 1 of a kind of multi-directional air distribution fixed bed biomass gasification stoves of the utility model, comprise body of heater 1 and fire grate 2, fire grate 2 is arranged on the middle part of body of heater 1, the bottom of body of heater 1 is a cinder chamber 21, the stove of body of heater 1 directly is 1.2m, belong to little internal diameter fixed-bed gasification furnace, the biomass material that present embodiment uses is a wooden unit, wooden unit is from the top A charging of body of heater 1, body of heater 1 is provided with the forced air inlet system, this forced air inlet system comprises wind sector 4, air-distributing device and connecting leg, air-distributing device adopts circulating line formula cloth wind structure, circulating line formula air inlet structure is provided with the wind distributing hole 32 of several air feeds in body of heater 1 for a ring pipe, looping wind-distributing pipe 31, in the present embodiment, wind distributing hole 32 is to offer towards the annulus axis direction of ring pipe, be that wind distributing hole 32 is on the inner edge surface of ring pipe, the downward inclined open of centering, annular wind-distributing pipe 31 is arranged on the inwall of body of heater 1, and the top that should annular wind-distributing pipe 31 be positioned at fire grate 2, annular wind-distributing pipe 31 is realized and being connected of body of heater wind sector 4 outward by being connected with the connecting leg 46 that passes furnace body wall.
In addition, in other embodiments, wind distributing hole on the annular wind-distributing pipe 31 32 can also centering horizontal direction openings, also can the centering upward opening, can also on a ring pipe, be provided with above-mentioned two or more towards the wind distributing hole that matches arbitrarily, so that adapt to the demand of plurality of raw materials and design.
Wind sector 4 comprises drive-motor 41, blower fan 42, air feed pipe and temperature-detecting device, air feed pipe and connecting leg 46 in the present embodiment are connected as a single entity, annular wind-distributing pipe 31 is connected with blower fan 42 by connecting leg 46, blower fan 42 is sent into air in the annular wind-distributing pipe 31, air is blown in the body of heater 1 by wind distributing hole 32, air flows in body of heater 1 from bottom to top, inflammable gas is drawn from the top B of body of heater 1, be upflow fixed bed vapourizing furnace, also has thermal insulation layer on the inwall of body of heater 1, the laying method of the utility model thermal insulation layer is earlier annular wind-distributing pipe 31 to be fixed on the inboard wall of furnace body, and the installation site of avoiding annular wind-distributing pipe 31 then is coated with thermal insulation layer on body of heater 1 inwall; In addition, also be laid with lagging material on the annular wind-distributing pipe 31, in body of heater 1, burnt out by high temperature to avoid annular wind-distributing pipe 31.
The utility model adopts blower fan forced air inlet mode, compare with existing normal pressure air intake mode, increased oxygen-supplying amount, and after adopting annular wind-distributing pipe 31, can be when guaranteeing abundant air feed even distributing wind, improved the response intensity of raw material, because sufficient reacting, the tar content that generates in the gas is less, therefore inflammable gas is difficult when mobile damages pipeline, equipment etc., inflammable gas when condensation, the also corresponding thereupon minimizing of the cooling water inflow of use, significantly reduce the sewage emissions amount, helped environmental protection.
Temperature-detecting device of the present utility model comprises temperature sensor 44 and controller 45, controller 45 is located on the drive-motor 41,44 of temperature sensors place on the annular wind-distributing pipe 31 in the body of heater 1, temperature in the body of heater of the annular wind-distributing pipe of temperature sensor 44 impressions 31 bands of position, and send temperature signal to controller 45, control blower fan 42 flows to the air output of annular wind-distributing pipe 31, with the temperature of reaction in the assurance aforementioned region, thereby realizes temperature automatically controlled function of the present utility model.
As shown in Figure 3, present embodiment is with the difference of embodiment 1: annular wind-distributing pipe 31 is different with the mode of connection of blower fan 42, present embodiment adopts following scheme: the air feed pipe of wind sector 4 is the total air feed pipes 33 that are positioned at the ring structure of body of heater 1 periphery, total air feed pipe 33 is connected by the interior annular wind-distributing pipe 31 of connecting leg 46 and stove, air is introduced in total air feed pipe 33, enter in the annular wind-distributing pipe 31 by connecting leg 46 again, and flow in the body of heater 1 by wind distributing hole 32.
Embodiment 3
As Fig. 4 and shown in Figure 5, the difference of present embodiment and embodiment 1 is: the employed biomass material of present embodiment is a straw, straw is easy to put up a bridge in body of heater, make the straw of bottom burn empty and the flame-out phenomenon of generation during burning, the straw of present embodiment is from the side A charging of body of heater, and furnace diameter belongs to the large diameter fixed-bed gasification furnace greater than 1.2m, present embodiment removes the circulating line formula cloth wind structure that adopts embodiment 1, also adopts following two kinds of air-distributing devices:
Straight pipe type cloth wind structure, straight pipe type cloth wind structure in the present embodiment is provided with several wind distributing holes 53 for two straight tubes, constitute cloth wind straight tube 52, wind distributing hole 53 is all upwards offered on straight tube, air can be blown in the body of heater 1 from wind distributing hole 53 vertically upward, cloth wind straight tube 52 is horizontally installed on the furnace body wall, and it is arranged in a crossed manner, form cross structure (referring to Fig. 5), this kind straight pipe type cloth wind structure is difficult for making straw to put up a bridge, cloth wind straight tube 52 is located at the middle and upper part in the body of heater 1, and be positioned at the top of annular wind-distributing pipe 31, the pipe end of cloth wind straight tube 52 all is connected with the connecting leg that passes furnace body wall, so that be connected with the wind sector 5 outside the body of heater 1, the pipe end of connecting leg and cloth wind straight tube 52 is connected as a single entity, the air feed pipe of wind sector 5 is the total air feed pipes 54 that are positioned at the ring structure of body of heater 1 periphery, total air feed pipe 54 directly is connected with the pipe end of cloth wind straight tube 52, cloth wind straight tube 52 is positioned on the pipeline section of body of heater 1 and is laid with lagging material, cloth wind straight tube 52, total air feed pipe 54 can directly carry out dismounting outside body of heater 1, therefore do not need to lift body of heater, convenient maintenance and replacement.
Overhead duct type cloth wind structure, overhead duct type cloth wind structure is that an airduct stretches to fire grate 2 downwards from body of heater 1 open top, constitute overhead wind-distributing pipe 62, the part that overhead wind-distributing pipe 62 stretches in the body of heater 1 is laid with lagging material, and the lower end of overhead wind-distributing pipe 62 is positioned at the top of cloth wind straight tube 52, touch on cloth wind straight tube 52 with the lower end of avoiding overhead wind-distributing pipe 62, the lower nozzle of overhead wind-distributing pipe 62 is provided with ventilation terminal 65, ventilation terminal 65 is the hollow ball-shape structure, and ventilation terminal 65 wraps up the lower nozzle of overhead wind-distributing pipe 62 fully, be distributed with wind distributing hole 66 on the sphere of ventilation terminal 65, can carry out multidirectional cloth wind, the upper orifice of overhead wind-distributing pipe 62 is connected with body of heater 1 wind sector 6 outward by connecting leg, the last pipeline section of connecting leg in the present embodiment and overhead wind-distributing pipe 62 is connected as a single entity, and in the air admission overhead wind-distributing pipe 62, is entered in the body of heater 1 by wind distributing hole 66 again, air feed from top to bottom, the inflammable gas that is produced not only can have been drawn but also can have been drawn from body of heater bottom C by furnace roof B.
Straw raw material humidity in the present embodiment is higher, therefore, vertical range between annular wind-distributing pipe 31, cloth wind straight tube 52 and the overhead wind-distributing pipe 62 is bigger, being convenient to straw has adequate time to react and dry, can complete reaction when guaranteeing that straw arrives annular wind-distributing pipe 31 with cloth wind straight tube 52.
In addition, it is fixed that the quantity of cloth wind straight tube 52 and caliber come according to raw material and cindery reaction characteristics, and straw is easy to put up a bridge in the present embodiment, so cloth wind straight tube 52 arranges thinlyyer, otherwise then close; Because straw weight is little, therefore can select the cloth wind straight tube that caliber is little and tube wall is thin.
The wind sector 5,6 of present embodiment is identical with the structure of embodiment 1 wind sector 4, just in the present embodiment in the wind sector 5 of straight pipe type cloth wind structure temperature sensor 56 be installed on the cloth wind straight tube 52, and position near furnace body wall, in order to experience the temperature of cloth wind straight tube 52 body of heater 1 inner compartments of living in, so that carry out temperature regulation, implement temperature control; Temperature sensor 64 then is installed on the lower end of overhead wind-distributing pipe 62 in the wind sector 6 of overhead duct type cloth wind structure.
Present embodiment adopts above three kinds of air-distributing devices, in body of heater 1, formed the oxidation zone of an enough air feed that evenly prolong, and combine with automatic temp controller, can when guaranteeing air feed, improving response intensity, avoid the intensive of above each pipeline, make that straw is difficult for putting up a bridge in body of heater, avoid empty phenomenon of burning to occur.
Embodiment 4
As Fig. 6～shown in Figure 8, be embodiment 4 of the present utility model, the difference of present embodiment and embodiment 3 is: the employed biomass material of present embodiment is a husk, husk is from the top D and the side A charging of body of heater, because husk is difficult for putting up a bridge, so the cloth wind straight tube 73 in the straight pipe type cloth wind structure is arranged closelyer in the present embodiment, the cloth wind straight tube 73 of present embodiment adopts 10, arranged in a crossed manner mutually, form fenestral fabric (referring to Fig. 8).
Present embodiment removes three kinds of air-distributing devices that adopted embodiment 3, also adopt cannula type cloth wind structure, cannula type cloth wind structure has 8 intubate, and an end of every intubate is connected as a single entity with the connecting leg that passes furnace body wall, the other end then stretches in the space, middle and upper part in the body of heater 1, constitute cloth wind intubate 82, cloth wind intubate 82 is positioned at the top of cloth wind straight tube 73, the air feed pipe of wind sector 7 is the total air feed pipes 83 that are positioned at the ring structure of body of heater 1 periphery, total air feed pipe 83 directly is connected with the pipe end of cloth wind intubate 82, so that be connected with body of heater 1 wind sector 7 outward.
Cloth wind intubate 82 in the present embodiment is arranged around a circle of furnace body wall, and be a circle, the length of pipe section that stretches into part of cloth wind intubate 82 is all identical, and and inboard wall of furnace body between angle α be 45 °, stretching on the part of cloth wind intubate 82 is laid with lagging material, also is provided with the temperature sensor 86 that is used to experience this temperature province on the inserting end of cloth wind intubate 82, behind the total air feed pipe 83 of air admission, enter again in the cloth wind intubate 82, and flow in the body of heater 1; Cloth wind intubate 82 oblique cuttings are gone in the body of heater 1, the flow direction of air is bottom in body of heater 1, if adopt more thick and heavy raw materials such as wooden unit, angle-inserting type is installed and can also be avoided cloth wind intubate 82 to be pounded and damage, raw material in the present embodiment waits other angle owing to be husk so above-mentioned angle α can also be chosen as 90 °.The type of furnace of present embodiment vapourizing furnace is that large diameter body of heater and husk are difficult for putting up a bridge, so cloth wind intubate 82 stretches into, and body of heater 1 interior pipeline section is grown, caliber is less, because husk weight is less, so the tube wall of cloth wind intubate 82 can be selected slim.Inflammable gas both can be drawn also and can draw from body of heater bottom C from body of heater top B in the present embodiment.
Because the particle of husk is less, in light weight, short to the time that reaction requires, the vertical range between therefore above cloth wind intubate 82, cloth wind straight tube 73, annular wind-distributing pipe 74 and the overhead wind-distributing pipe 76 is less.
In addition, according to the difference of raw material, can also on body of heater, set up the cloth wind intubate of several circles up and down, to increase response intensity; For use this type of volume of straw for example big, in light weight, the short and raw material that put up a bridge easily of seeking time is wanted in reaction, the cloth wind intubate that is arranged in same circle enters the intravital pipeline section of stove and can also select the long short decoration form that has, to avoid bridging; Simultaneously, annular wind-distributing pipe can also be set up several, because the particle of husk is less, when it was carried out drying, a plurality of layouts of annular wind-distributing pipe can increase exerting oneself of vapourizing furnace.
The utility model utilizes temperature-detecting device can guarantee the temperature of reaction in differential responses zone in the body of heater, realizes temperature automatically controlled function; And can be a total information processing system with the set of the temperature-detecting device of each air inlet device, the temperature signal of each temperature sensor is gathered, comprehensively adjust the intravital temperature of air intake and stove.
The utility model also be applicable to the drying of the solid matter of the gasification of the gasification of coal, the industrial refuse of hydrocarbon class etc. and common mode, so the scope of application is extremely wide except that adopting biomass materials such as cotton stalk, husk, straw.
Embodiment of the present utility model is not limited thereto; kind difference according to the use biomass material; air-distributing device in the utility model has multiple variation; being difficult to limit describes; therefore according to foregoing of the present utility model; utilize the ordinary skill knowledge and the customary means of this area; do not breaking away under the above-mentioned basic fundamental thought of the utility model prerequisite; the utility model can also be made modification, replacement or the change of other various ways, all drops within the utility model rights protection scope.
Claims (10)
1, a kind of multi-directional air distribution fixed bed biomass gasification stoves, comprise body of heater and fire grate, described fire grate is arranged on the middle part of described body of heater, it is characterized in that: described body of heater is provided with the forced air inlet system, described forced air inlet system comprises wind sector, air-distributing device and connecting leg, described air-distributing device is the wind-distributing pipe road to the multi-faceted air intake of stove that is positioned at body of heater fire grate top, described wind sector is positioned at outside the body of heater, be connected with described wind-distributing pipe road by the connecting leg that passes the furnace wall, thereby for the pressure wind regime is provided in the stove.
2, a kind of multi-directional air distribution fixed bed biomass gasification stoves according to claim 1, it is characterized in that: described air-distributing device adopts circulating line formula cloth wind structure, described circulating line formula cloth wind structure is provided with several wind distributing holes at least one ring pipe, the looping wind-distributing pipe, described annular wind-distributing pipe is arranged on the inwall of described body of heater, and described annular wind-distributing pipe is realized and being connected of body of heater described wind sector outward by being connected with the connecting leg that passes furnace body wall.
3, a kind of multi-directional air distribution fixed bed biomass gasification stoves according to claim 2, it is characterized in that: the wind distributing hole on the described annular wind-distributing pipe is to offer towards the annulus axis direction of described ring pipe, and promptly wind distributing hole centering horizontal direction opening, centering on the inner edge surface of described ring pipe makes progress or downward inclined open; Perhaps among this three is set on the described ring pipe two or more towards the wind distributing hole that matches arbitrarily.
4, a kind of multi-directional air distribution fixed bed biomass gasification stoves according to claim 1, it is characterized in that: described air-distributing device adopts straight pipe type cloth wind structure, described straight pipe type cloth wind structure is provided with several wind distributing holes at least one straight tube, constitute cloth wind straight tube, described cloth wind straight tube can horizontal or oblique being arranged on the described furnace body wall, its at least one end is connected with the connecting leg that passes described furnace body wall, so that be connected with body of heater described wind sector outward.
5, a kind of multi-directional air distribution fixed bed biomass gasification stoves according to claim 1, it is characterized in that: described air-distributing device adopts overhead duct type cloth wind structure, described overhead duct type cloth wind structure is that at least one airduct stretches to fire grate downwards from described upper of furnace body, constitute the overhead wind-distributing pipe, the upper orifice of described overhead wind-distributing pipe is connected by the outer described wind sector of connecting leg and body of heater.
6, a kind of multi-directional air distribution fixed bed biomass gasification stoves according to claim 5, it is characterized in that: the lower nozzle of described overhead wind-distributing pipe is provided with ventilation terminal, described ventilation terminal is the hollow ball-shape structure, and described ventilation terminal wraps up the lower nozzle of described overhead wind-distributing pipe fully, is distributed with wind distributing hole on the sphere of described ventilation terminal.
7, a kind of multi-directional air distribution fixed bed biomass gasification stoves according to claim 1, it is characterized in that: described air-distributing device adopts cannula type cloth wind structure, described cannula type cloth wind structure has two intubate at least, and an end of every intubate is connected as a single entity with the connecting leg that passes furnace body wall, the other end then stretches in the space, the intravital middle and upper part of stove, constitutes cloth wind intubate.
8, a kind of multi-directional air distribution fixed bed biomass gasification stoves according to claim 7, it is characterized in that: described cloth wind intubate is arranged around a circle of furnace body wall, and be at least a circle, the angle α that stretches between part and the inboard wall of furnace body of described cloth wind intubate is 30～135 °.
9, a kind of multi-directional air distribution fixed bed biomass gasification stoves according to claim 1, it is characterized in that: described wind sector comprises drive-motor, blower fan, air feed pipe and temperature-detecting device, described blower fan and air-distributing device are by described air feed pipe coupling, described temperature-detecting device comprises temperature sensor and controller, described controller is located on the described drive-motor, described temperature sensor then places in the described body of heater and is positioned on the described air-distributing device, described temperature sensor is experienced the interior temperature of body of heater and is sent temperature signal to controller, flow to the air output of air-distributing device with the control blower fan, thereby realize the temperature control in the stove.
10, a kind of multi-directional air distribution fixed bed biomass gasification stoves according to claim 9, it is characterized in that: the air feed pipe of described wind sector is the total air feed pipe that is positioned at the ring structure of body of heater periphery, and described total air feed pipe is connected by the interior air-distributing device of described connecting leg and stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920050433 CN201343523Y (en) | 2009-01-20 | 2009-01-20 | Multi-wind-distribution fixed bed biomass gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920050433 CN201343523Y (en) | 2009-01-20 | 2009-01-20 | Multi-wind-distribution fixed bed biomass gasification furnace |
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| Publication Number | Publication Date |
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| CN201343523Y true CN201343523Y (en) | 2009-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200920050433 Expired - Fee Related CN201343523Y (en) | 2009-01-20 | 2009-01-20 | Multi-wind-distribution fixed bed biomass gasification furnace |
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| CN (1) | CN201343523Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475814A (en) * | 2009-01-20 | 2009-07-08 | 广州市宇联机电有限公司 | Multi-directional air distribution fixed bed biomass gasification stoves |
| CN105066184A (en) * | 2015-07-24 | 2015-11-18 | 北票市盛邦生物质能源科技有限公司 | Novel biomass particle gasification stove |
| CN107576190A (en) * | 2017-07-31 | 2018-01-12 | 新兴能源装备股份有限公司 | The tower drier that a kind of waste heat from tail gas recycles |
| CN108503174A (en) * | 2018-04-17 | 2018-09-07 | 湖南省益能环保科技有限公司 | A kind of gasification installation for Treatment of Sludge |
| CN109609190A (en) * | 2018-12-14 | 2019-04-12 | 西安交通大学 | A kind of refuse gasification and tar catalytic gasification device |
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2009
- 2009-01-20 CN CN 200920050433 patent/CN201343523Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475814A (en) * | 2009-01-20 | 2009-07-08 | 广州市宇联机电有限公司 | Multi-directional air distribution fixed bed biomass gasification stoves |
| CN101475814B (en) * | 2009-01-20 | 2013-11-06 | 广州市宇联机电有限公司 | Multi-directional air distribution fixed bed biomass gasification stoves |
| CN105066184A (en) * | 2015-07-24 | 2015-11-18 | 北票市盛邦生物质能源科技有限公司 | Novel biomass particle gasification stove |
| CN105066184B (en) * | 2015-07-24 | 2017-04-12 | 北票市邦立锅炉有限公司 | Biomass particle gasification stove |
| CN107576190A (en) * | 2017-07-31 | 2018-01-12 | 新兴能源装备股份有限公司 | The tower drier that a kind of waste heat from tail gas recycles |
| CN108503174A (en) * | 2018-04-17 | 2018-09-07 | 湖南省益能环保科技有限公司 | A kind of gasification installation for Treatment of Sludge |
| CN109609190A (en) * | 2018-12-14 | 2019-04-12 | 西安交通大学 | A kind of refuse gasification and tar catalytic gasification device |
| CN109609190B (en) * | 2018-12-14 | 2021-04-20 | 西安交通大学 | Garbage gasification and tar catalytic gasification device |
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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: 20091111 Termination date: 20110120 |