CN203144348U - Bidirectional air inlet device for biomass gasifier - Google Patents
Bidirectional air inlet device for biomass gasifier Download PDFInfo
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- CN203144348U CN203144348U CN 201320125045 CN201320125045U CN203144348U CN 203144348 U CN203144348 U CN 203144348U CN 201320125045 CN201320125045 CN 201320125045 CN 201320125045 U CN201320125045 U CN 201320125045U CN 203144348 U CN203144348 U CN 203144348U
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- air
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- upcast ventilation
- air duct
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Abstract
The utility model discloses a positive-reverse bidirectional air inlet device for a biomass gasifier. The positive-reverse bidirectional air inlet device comprises an air door (6), upper air ducts (13) and lower air ducts (5), wherein the upper air ducts (13) are annularly distributed around the outlet channel of a gas outlet (10); the lower air ducts (5) are annularly distributed around the inlet of a charge port (4); the upper air ducts (13) are downwards communicated with upper air tubes (12); the lower air ducts (5) are upwards communicated with lower air tubes (3); the upper air tubes (12) and the lower air ducts (5) are located at upper positions and lower positions in a hearth (2); the plurality of upper air tubes (12) are vertically and annularly distributed at the periphery of the gas outlet (10), and the annular shape is cylindrical; the plurality of lower air tubes (3) are slantwise and annularly distributed at the periphery of the charge port (4), and the annular shape is circular-table-shaped; and the air outlets of the upper air tubes (12) and the lower air tubes (3) are formed at tube nozzles respectively. The positive-reverse bidirectional air inlet device disclosed by the utility model is capable of realizing uniform wind field, wind pressure and combustion via the distribution of the upper air tubes and the lower air tubes on an upper layer and a lower layer, thus being more beneficial to controlling the temperature of the hearth to be between 600 to 650 DEG C.
Description
Technical field
The utility model belongs to solid-fuelled domestic burners or kitchen range, relates to the positive and negative two-way air intake device of a kind of biomass gasifying furnace.
Background technology
At present fixed bed biomass gasification furnace is to the fuel air blast by grate or furnace wall blast inlet, meeting formation burner hearth wind field and blast are inhomogeneous, if want the cooking stove works better, the burner hearth local temperature can surpass 800 degree, generate slagging scorification (the fuel slagging temperature is generally 680 degree) easily, because the slagging scorification meeting influences the furnace ventilation performance, and vapourizing furnace can't be worked long hours continuously.So need a kind of can spending fire box temperature control between 650 degree 600, the uniform device of wind field and blast solves the slagging scorification problem of biomass gasifying furnace.
For address this problem the applicant in 2012 the application application number be 201210550850X " a kind of biomass gasifying furnace gasification process and erect-type air inlet device ", the opening for feed that each air outlet tube is erected in the burner hearth distributes on every side equably ringwise, air outlet tube on the same circumferential ring is divided into and grows two kinds of airduct and short air outlet tubes, and grows airduct and the distribution adjacent one another are of short air outlet tube.The gasification of this biomass gasifying furnace is stable, can realize that by growing airduct and the distribution adjacent one another are of short air outlet tube wind field and blast are even, burning evenly, thereby be conducive to realize the control fire box temperature at 600 degree between 650 degree; By the life-time service process, it is further perfect that the applicant finds that this technical scheme is still waiting.
Summary of the invention
The utility model purpose is to provide a kind of biomass gasifying furnace positive and negative two-way air intake device, makes burner hearth wind field blast and biomass combustion more even, thereby more is conducive to control fire box temperature between 600 degree are spent to 650.
Technical solutions of the utility model: the positive and negative two-way air intake device of a kind of biomass gasifying furnace, it comprises air door, upper air duct and lower air duct, upper air duct is annular spread around the exit ramp of gas outlet, lower air duct is in the inlet ambient annular spread of opening for feed, upper air duct is communicated with upcast ventilation pipe downwards, lower air duct upwards is communicated with lower air conduit, and upcast ventilation pipe and lower air duct are positioned at the upper-lower position of burner hearth; Some upcast ventilation pipes vertically distribute ringwise in the periphery of gas outlet, and it is cylindric that annular is, and some lower air conduits tilt in the periphery of opening for feed and distribute ringwise, and it is round table-like that annular is, and the air outlet of upcast ventilation pipe and lower air conduit is respectively at mouth of pipe place.
Described upcast ventilation pipe divides long upcast ventilation pipe and short upcast ventilation pipe, vertically be with the ring distribution in the periphery of gas outlet between long upcast ventilation pipe and short upcast ventilation pipe homogeneous phase, described lower air conduit divides long lower air conduit and short lower air conduit, and long lower air conduit and short lower air conduit tilt to be with the ring distribution between the peripheral homogeneous phase of opening for feed.
Be provided with the upcast ventilation pipe air door between upper air duct and the air door.
The utility model divides two-layer distribution up and down can realize that wind field and blast are even by upcast ventilation pipe and lower air conduit, burning evenly, temperature also relatively evenly in the burner hearth, under the situation that reduces the burner hearth air output, also can guarantee gas production rate, and localized hyperthermia can not appear, the maximum air output adjustment of burner hearth is suitable, by air door control wind-force size, thereby be conducive to realize that the control fire box temperature is between 600 degree are spent to 650.
Description of drawings
The structural representation of Fig. 1, the utility model embodiment 1.
Among Fig. 1: lighter for ignition 1, burner hearth 2, lower air conduit 3, opening for feed 4, lower air duct 5, air door 6, material level inductor block 7, material level induction rod 8, diaphragm seal 9, gas outlet 10, material level check-out console 11, upcast ventilation pipe 12, upper air duct 13, material level induction rod bearing 14, upcast ventilation pipe air door 15, reducing zone 16, heat zone 17.
Embodiment
The utility model can specifically be implemented by the technical scheme in the utility model content, and by the following examples can the utility model will be further described, yet scope of the present utility model is not limited to following embodiment.
Embodiment 1:
Lighter for ignition 1 is connected with burner hearth 2,8 upcast ventilation pipes 12 are connected with upper air duct 13,8 lower air conduits 3 are connected with lower air duct 5, opening for feed 4 is connected with at the bottom of burner hearth 2 thoraxes, upper air duct 13 is connected with air door 6 with lower air duct 5 simultaneously, be provided with upcast ventilation pipe air door 15 between upper air duct 13 and the air door 6, material level inductor block 7 is connected with burner hearth 2, material level induction rod 8 is connected with burner hearth 2 by material level induction rod bearing 14, one end of material level induction rod 8 is material level check-out console 11, diaphragm seal 9 is connected with material level induction rod 8, and gas outlet 10 is connected with burner hearth 2 fire doors.
Air door 6, upcast ventilation pipe air door 15, upper air duct 13 and upcast ventilation pipe 12 orders are communicated with, air door 6, lower air duct 5 and lower air conduit 3 orders are communicated with, 12 fens 4 long upcast ventilation pipes of described upcast ventilation pipe and 4 short upcast ventilation pipes, vertically be same annular spread in the periphery of gas outlet 10 between 4 long upcast ventilation pipes and 4 short upcast ventilation pipe homogeneous phases, namely on same ring, it is high cylindric that the annular of long upcast ventilation pipe is, and the annular of short upcast ventilation pipe is short cylindric, and high cylinder directly equates with the post of short cylinder.
3 fens long 4 long lower air conduits of described lower air conduit and 4 short lower air conduits, 4 long lower air conduits and 4 short lower air conduits tilt to be same annular spread between the peripheral homogeneous phase of opening for feed 4, namely on same round platform ring.It is high round table-like that the annular of long lower air conduit is, and the annular of short lower air conduit is short round table-like, and short round platform directly equates with the same horizontal section post of high round platform.
The air outlet of upcast ventilation pipe 12 and lower air conduit 3 is respectively at mouth of pipe place.Do not leave the air port on the tube body wall of upcast ventilation pipe 12 and lower air conduit 3.Also can open some air outlets on the tube body wall of upcast ventilation pipe 12 and lower air conduit 3 among other embodiment.
Working process:
When cooking stove is started working, 4 pairs of burner hearth 2 chargings of opening for feed, when fuel height arrives material level check-out console 11 positions, by material level induction rod 8 material level inductor block 7 is started to control, stop charging, this moment, air door 6 was opened, and earlier inflammable gas (as liquefied gas) was charged into upper air duct 13 and lower air duct 5, simultaneously to burner hearth 2 air blast, inflammable gas enters in the burner hearth 2 upper air duct 13 by lower air conduit 3 by upcast ventilation pipe 12, lower air duct 5; Inflammable gases igniting in this moment lighter for ignition 1 pair of burner hearth 2, inflammable gas are to fuel ignitions in the burner hearth 2, and the air outlet of upcast ventilation pipe 12 and lower air conduit 3 forms firing level; When the cooking stove works better, close lighter for ignition 1 and inflammable gas entrance.Lower air conduit 3 is for generation of heat zone, for fuel provides the pyrolysis energy, upcast ventilation pipe 12 is used for keeping the reducing zone temperature, and the heat zone product is carbonic acid gas, belong to waste gas, the upper strata of heat zone is reducing zone, belongs to scorching hot carbon-coating, when the carbonic acid gas that heat zone produces moves to gas outlet 10 by scorching hot carbon-coating, the carbon scorching hot with reducing zone contacts the generation reduction reaction, generate the inflammable gas carbon monoxide, the carbon dioxide reduction that heat zone is produced becomes carbon monoxide, improves the fuel gasification rate.
Owing to the even distribution in lower air conduit 3 space in burner hearth 2 and along the feedstock direction air blast, be diffused into after the air blast in the heat zone 17 of burner hearth 2, this moment, wind field, wind pressure ratio were more even, temperature also just relatively evenly in the burner hearth, upcast ventilation pipe 12 is downwards to reducing zone 16 air blast, by upcast ventilation pipe air door 15 control air quantity, keep the working temperature of reducing zone.
Damper 6 makes the heat zone temperature between 600 degree are spent to 650, just can control cooking stove and not produce the slagging scorification phenomenon in combustion processes.Diaphragm seal 9 can prevent gas leaking, gas outlet 10 output inflammable gass.Along with the consumption of fuel, material level step-down, material level inductor block 7 start feed mechanism, and burner hearth begins charging, when fuel height arrives material level check-out console 11 positions, by material level induction rod 8 material level inductor block 7 are started to control, and stop charging.And so forth, make the cooking stove non-stop run.
Claims (3)
1. positive and negative two-way air intake device of biomass gasifying furnace, it comprises air door (6), upper air duct (13) and lower air duct (5), upper air duct (13) is annular spread around the exit ramp of gas outlet (10), lower air duct (5) is in the inlet ambient annular spread of opening for feed (4), it is characterized in that upper air duct (13) is communicated with upcast ventilation pipe (12) downwards, lower air duct (5) upwards is communicated with lower air conduit (3), and upcast ventilation pipe (12) and lower air duct (5) are positioned at the upper-lower position of burner hearth (2); Some upcast ventilation pipes (12) vertically distribute ringwise in the periphery of gas outlet (10), it is cylindric that annular is, some lower air conduits (3) tilt in the periphery of opening for feed (4) and distribute ringwise, and it is round table-like that annular is, and the air outlet of upcast ventilation pipe (12) and lower air conduit (3) is respectively at mouth of pipe place.
2. according to using the described a kind of biomass gasifying furnace two-way air intake device of claim 1, it is characterized in that described upcast ventilation pipe (12) divides long upcast ventilation pipe and short upcast ventilation pipe, vertically be with the ring distribution in the periphery of gas outlet (10) between long upcast ventilation pipe and short upcast ventilation pipe homogeneous phase, described lower air conduit (3) divides long lower air conduit and short lower air conduit, and long lower air conduit and short lower air conduit tilt to be with the ring distribution between the peripheral homogeneous phase of opening for feed (4).
3. according to claim 1 or 2 described a kind of biomass gasifying furnace two-way air intake devices, it is characterized in that being provided with upcast ventilation pipe air door (15) between described upper air duct (13) and the air door (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125045 CN203144348U (en) | 2013-03-19 | 2013-03-19 | Bidirectional air inlet device for biomass gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125045 CN203144348U (en) | 2013-03-19 | 2013-03-19 | Bidirectional air inlet device for biomass gasifier |
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| Publication Number | Publication Date |
|---|---|
| CN203144348U true CN203144348U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320125045 Expired - Lifetime CN203144348U (en) | 2013-03-19 | 2013-03-19 | Bidirectional air inlet device for biomass gasifier |
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| Country | Link |
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| CN (1) | CN203144348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131475A (en) * | 2013-03-19 | 2013-06-05 | 孙吉章 | Bidirectional air intake device of biomass gasifier |
-
2013
- 2013-03-19 CN CN 201320125045 patent/CN203144348U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131475A (en) * | 2013-03-19 | 2013-06-05 | 孙吉章 | Bidirectional air intake device of biomass gasifier |
| CN103131475B (en) * | 2013-03-19 | 2014-07-30 | 孙吉章 | Bidirectional air intake device of biomass gasifier |
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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: 20130821 Effective date of abandoning: 20140730 |
|
| RGAV | Abandon patent right to avoid regrant |