CN104067050A

CN104067050A - Biomass fuel stove

Info

Publication number: CN104067050A
Application number: CN201280038748.XA
Authority: CN
Inventors: 朱宏锋; 陈前喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-23
Filing date: 2012-04-23
Publication date: 2014-09-24
Also published as: US20150159879A1; WO2013159267A1

Abstract

A biomass fuel (70) stove uses biomass fuel (70) particles, and comprises a body (1) capable of being placed on the ground. The body (1) comprises a top surface (11) and a side surface (12) extending from the periphery of the top surface (11) downwards to the ground, and is provided with a combustion portion (10) and an auxiliary equipment portion (20). The combustion portion (10) comprises a combustor (30). The combustor (30) has a fuel frame (31), a combustion area (32) is formed above the fuel frame (31), and a blast area (33) is formed below the fuel frame (31). A plurality of vent holes (311) are provided on the fuel frame (31). An air supplement device (40) is provided above the combustion area (32), and the air supplement device (40) comprises a cylindrical inner wall (41) and an air feed chamber (42) encircling the cylindrical inner wall (41). The blast area (33) is in communication with the air feed chamber (42), and is supplied with supplementary oxygen uniformly by a blower (51) through an air feed pipe (34). The auxiliary equipment portion (20) is provided with electrical equipment (50), and the electrical equipment (50) comprises the blower (51), a power supply (52), and a power supply switch (53). The cylindrical inner wall (41) of the air supplement device (40) is provided with at least one row of positive air shift devices (43) and at least one row of negative air shift devices (44).

Description

A kind of biomass fuel stove

Technical field

The present invention relates to a kind of stove of use biomass fuel, more particularly in it is a kind of use by straw, wood chip, bamboo, agricultural crop straw etc. be size-reduced, drying, compacting little particle as fuel and flame zone wind form is mended using turbulent flow so as to greatly improving the stove of energy utilization efficiency.

Background technology

Biomass fuel be by straw, wood chip, bamboo, agricultural crop straw etc. it is size-reduced, drying, compacting little particle.Biomass fuel is as a kind of new energy because its health, environmental protection, efficient, economic dispatch advantage have begun to gradually be widely applied.

The present inventor is in International Patent Application PCT/CN2012/01746 Disclosed in ' a kind of efficient stove ' and a kind of use biomass fuel stove.As shown in Figure 14 and Figure 15, the stove has a body 9, and body includes combustion box 91 and auxiliary equipment case 92. Burner 93 is accommodated in combustion box 91, burner 93 has a fuel rack 931.The top of fuel rack 931 forms combustion zone 932, blast area 933 formed below.Combustion zone 932 top is flame zone 934, provided with air compensation device 94.Air compensation device 94 includes a cylindrical inner wall 941, plenum chamber 942 and UNICOM's plenum chamber 942 and blast area 933 ventilating duct 943.Several inclined wind apparatus 95 are vertically arranged with the outer surface of cylindrical inner wall 941 of air compensation device 94.Each wind apparatus 95 partially includes a slit 951 , on the outer surface of cylindrical inner wall 941, in the left side of each slit 951 or all it is formed with a flow deflector 952, every flow deflector along slit 951 on the right side of each slit 951 952 to corresponding slit 951 direction extension and with the outer surface of cylindrical inner wall 941 at an angle, the angle is less than 90 degree more than 0 degree.

Although the benefit wind mode of this stove solves the interference mended between general mood stream, but still there is technical problem.Inclined wind apparatus 95 is in air compensation device 94 Cylindrical inner wall 941 The upward air stream of the single direction rotation of similar cyclone is formd in interior flame zone.This rotary air stream both solves the interference problem mended between general mood stream or is the oxygen needed for combustion gas supplements burning.But simultaneously because the one-way of this rotary air stream flowing, also causes the oxygen filled into air from being sufficiently mixed with combustion gas, to cause burning insufficient.Second, the one-way of air-flow is also due to, the spiral air flow rate of climb that interference is not met can quickly have been taken away not yet clean-burning Some gases and heat, so can further bring the waste of energy than very fast.3rd, as the burn incompletely caused by both the above reason, it can make it that uncombusted carbonaceous particles concentration contained in the burning waste gas of discharge is higher, external phenomenon is exactly that black smoke is more.4th, air compensation device The heat of flame zone inside 94 is always quickly taken away, it is impossible to form higher temperature.

Technical problem

The technical problems to be solved by the invention are to provide a kind of biomass fuel stove, the stove compared with traditional stove both will not produce mend general mood stream between interfere, simultaneously the oxygen in benefit general mood stream can be made to be sufficiently mixed with combustion gas, obtain fuel gas buring more abundant.

Another technical problem to be solved by this invention is to provide a kind of biomass fuel stove, and the stove can slow down the speed that high-temperature fuel gas leaves in flame zone, so as to obtain higher heating-up temperature.

Technical solution

In order to solve this technical problem, the invention provides a kind of biomass fuel stove, the stove uses biomass fuel pellet, and including a body that can be placed on ground, body includes a top surface and a side extended downwardly from top surface periphery towards ground direction.Body contents, which are received, a combustion section and an auxiliary equipment portion.Combustion section includes a burner, and burner, which has to be formed above a fuel rack, fuel rack on combustion zone, blast area formed below, fuel rack, offers several vent apertures.The top of combustion zone is provided with an air compensation device.Air compensation device includes a cylindrical inner wall and a plenum chamber being enclosed on the outside of cylindrical inner wall.Blast area and plenum chamber are connected, and unified by an air blower offer oxygenating by an air supply duct.Auxiliary equipment accommodates electrical equipment in portion.Electrical equipment includes air blower, power supply With One power switch.At least a line forward bias wind apparatus and at least reverse wind apparatus partially of a line are provided with the cylindrical inner wall of air compensation device.Include a plurality of first openings per a line forward bias wind apparatus, on the outer surface of cylindrical inner wall, first flow deflector is formed with right side of each the first opening in each first left side being open or, every first flow deflector extends to the direction of the corresponding first opening and is more than with the outer surface of cylindrical inner wall in one 0 degree of angle a less than 90 degree .Per a line, reversely wind apparatus includes a plurality of second openings partially, on the outer surface of cylindrical inner wall, second flow deflector is formed with each the second opening and the first flow deflector opposite side, every second flow deflector extends to the direction of the corresponding second opening and is more than with the outer surface of cylindrical inner wall in one 0 degree of angle b less than 90 degree.

Beneficial effect

The beneficial effect that the present invention is brought is that the oxygen and combustion gas in can making benefit general mood stream into the air-flow of flame zone from the inclined wind apparatus of forward and reverse respectively are sufficiently mixed, and makes burning become more fully, to improve capacity usage ratio.Meanwhile, compared with one-way spiral air-flow, the interaction of two kinds of air-flows has slowed down the speed that high-temperature fuel gas leaves flame zone, so as to make stove obtain higher ignition temperature.It is demonstrated experimentally that the stove of the present embodiment can improve temperature compared with traditional biomass furnace 20-30% .3rd, due to sufficiently burning, contained uncombusted carbonaceous particles concentration declines to a great extent in waste gas, and flame no longer produces black smoke.

Brief description of the drawings

Fig. 1 is the schematic perspective view of present pre-ferred embodiments.

Fig. 2 is an exploded perspective schematic diagram of Fig. 1 illustrated embodiments.

Fig. 3 a are a schematic top plan views of Fig. 1 illustrated embodiments.

Fig. 3 b are the sectional views in A-A directions in Fig. 3 a.

Fig. 4 is burner and the part isometric schematic diagram of air compensation device cylindrical inner wall part in present pre-ferred embodiments.

Fig. 5 is the partial top floor map of burner and air compensation device cylindrical inner wall part in present pre-ferred embodiments.

Fig. 6 is the circuit diagram of electrical equipment part in present pre-ferred embodiments.

Fig. 7 is the schematic perspective view of another embodiment of the present invention.

Fig. 8 is an exploded perspective schematic diagram of Fig. 7 illustrated embodiments.

Fig. 9 is a cross-sectional plane schematic diagram of Fig. 7 illustrated embodiments.

Figure 10 is the amplifier section schematic perspective view of air compensation device part in Fig. 7 illustrated embodiments.

Figure 11 is the plane enlarged diagram of cylindrical inner wall in air compensation device shown in Figure 10.

Figure 12 is the circuit diagram of electrical equipment part in Fig. 7 illustrated embodiments.

Figure 13 a, 13b and 13c are the amplification schematic perspective views of three kinds of other flow-disturbing air compensation devices in the present invention.

Figure 14 is a kind of section plan of the existing biomass fuel stove with air compensation device.And,

Figure 15 be stove shown in Figure 14 air compensation device in cylindrical inner wall part plane enlarged diagram.

The preferred forms of the present invention

Fig. 1 and Fig. 2 It show a kind of schematic perspective view of biomass fuel stove preferred embodiment of the invention.The stove includes the body 1 that can be placed on ground, and body 1 includes a top surface 11 and one from top surface 11 A combustion section 10 and an auxiliary equipment portion 20 are accommodated in the side 12 that periphery is extended downwardly towards ground direction, body 1.

With reference to Fig. 3 a and Fig. 3 b, combustion section 10 includes a burner 30 and one is located at burner 30 The air compensation device 40 of top.Burner 30 has a fuel rack 31, and the top of fuel rack 31 forms combustion zone 32, blast area 33 formed below.Several vent apertures are offered on fuel rack 31 311 .Air compensation device 40 includes a cylindrical inner wall 41 and a plenum chamber 42 for being enclosed in the outside of cylindrical inner wall 41.In this preferred embodiment, blast area 33 and plenum chamber 42 It is connected, and oxygenating is provided by an air blower 51 by a unification of air supply duct 34.Cylindrical inner wall 41 itself partly surrounds a flame region therebetween.

With reference to Fig. 4 and Fig. 5, at least a line forward bias wind apparatus 43 and at least reverse wind apparatus partially of a line are provided with cylindrical inner wall 41 44 .Include a plurality of first openings 431 per a line forward bias wind apparatus 43, on the outer surface of cylindrical inner wall 41, in the left side of each the first opening 431 or in each the first opening 431 Right side be all formed with first flow deflector 432, direction extension from every first flow deflector 432 to the corresponding first opening 431 and with the outer surface of cylindrical inner wall 41 a, angle a at an angle To be less than 90 degree more than 0 degree, it is preferred that 45 degree.In the illustrated embodiment, all first flow deflectors 432 correspondence first opening 431 left side and to corresponding first opening 431 Direction is that right side extends.Per a line, reversely wind apparatus 44 includes a plurality of second openings 441 partially, on the outer surface of cylindrical inner wall 41, in each the second opening 441 and the first flow deflector 432 Opposite side is all formed with second flow deflector 442, direction extension from every second flow deflector 442 to the corresponding second opening 441 and with the outer surface of cylindrical inner wall 41 b, angle b at an angle To be less than 90 degree more than 0 degree, it is preferred that 45 degree.In the illustrated embodiment, all second flow deflectors 442 correspondence second opening 441 right side and to corresponding second opening 441 Direction is that left side extends.

In the present embodiment, auxiliary equipment portion 20 accommodates electrical equipment 50.The circuit diagram of electrical equipment 50 such as Fig. 6 It is shown, including air blower 51, power supply 52, a power switch 53 and the power supply indicator 54 blown to the blast area 33 of burner 30 and plenum chamber 42.Power supply 52 Both it can be power of alterating and direct current 521, accessory power supply can also be used as by multiple-connected battery 522 on power of alterating and direct current 521.Power of alterating and direct current 521 and battery 522 can individually power.Power switch 53 are installed on side 12, can control the power supply of whole circuit, and switch indication light 54 is also installed on side 12 near power switch 53, is used to refer to power switch 53 Folding condition.

Fuel 70 be biomass fuel, be by straw, wood chip, bamboo, agricultural crop straw etc. it is size-reduced, drying, compacting little particle.

When in use, user first can put the body 1 of the present invention steadily on the ground of required position, the air compensation device 40 through combustion section 10 The flame zone that is surrounded of cylindrical inner wall 41 in be put into the particle of fuel 70 on the fuel rack 31 of burner 30.After user presses power switch 53, switch indication light 54 Light, represent power on, stove is started working.Now user can put into the cotton ball soaked in alcohol lighted on the particle of fuel 70 on fuel rack 31, and fuel 70 above is lighted.Meanwhile, air blower 51 Start to blow to blast area 33 and plenum chamber 42, the air into blast area 33 by the vent aperture 311 that opens up on fuel rack 31 is the fuel 70 on combustion zone 32 Burning provide needed for oxygen.And enter the wind of plenum chamber 42 and entered by forward bias wind apparatus 43 and reversely after inclined wind apparatus 44 among the flame zone that cylindrical inner wall 41 is surrounded.When fuel 70 The methane combustion gas of low concentration can be produced when burning to a certain extent, these methane gas form flame in the presence of the air-flow that air blower 51 is produced.It is different from traditional mode for flame zone benefit wind, from each forward bias wind apparatus 43 Air into flame zone becomes unidirectionally to flow into from each first opening 431 clockwise or counterclockwise after the first flow deflector 432, so from forward bias wind apparatus 43 Into the air in flame zone in one-way spiral form.And simultaneously, from it is each reversely partially wind apparatus 44 enter flame zone air become after the second flow deflector 442 with from forward bias wind apparatus 43 Unidirectionally flowed into the opposite direction of the air-flow of flame zone from each second opening 441, so being to be in and forward bias wind apparatus 43 from reverse wind apparatus 44 partially into the air in flame zone Into the one-way spiral form of the air-flow opposite direction of flame zone.Respectively from the inclined wind apparatus 43,44 of forward and reverse Air-flow into flame zone can be sufficiently mixed oxygen in benefit general mood stream and combustion gas, make burning become more fully, to improve capacity usage ratio.Meanwhile, compared with one-way spiral air-flow, the interaction of two kinds of air-flows has slowed down the speed that high-temperature fuel gas leaves flame zone, so as to make stove obtain higher ignition temperature.It is demonstrated experimentally that the stove of the present embodiment can improve temperature compared with traditional biomass furnace 20-30% .User can put into the particle of fuel 70 to ensure sustained combustion manually into burner 30 frequently during use.

Several flow-disturbing air compensation devices 45 are also provided with cylindrical inner wall 41.Flow-disturbing air compensation device 45 Can be that any one can mend the device of wind to the flame zone in cylindrical inner wall 41.As shown in Fig. 4, in this embodiment, flow-disturbing air compensation device 45 includes several flow-disturbing holes 451 being formed on cylindrical inner wall 41 .After air blower 51 starts, air-supply air-flow both enters in the flame zone that cylindrical inner wall 41 is surrounded through the inclined wind apparatus 43,44 of forward and reverse, while the also flow-disturbing hole 451 through flow-disturbing air compensation device 45 Enter in the region.The air-flow for entering flame zone through flow-disturbing air compensation device 45 can further be sufficiently mixed oxygen and the combustion gas in air-flow, further improve capacity usage ratio.Meanwhile, through flow-disturbing air compensation device 45 The air-flow entered in flame zone can also further slow down the speed that high-temperature fuel gas leaves flame zone, so as to further improve the ignition temperature of stove.Figure 13 a, 13b and 13c Show the flow-disturbing air compensation device 45 of three kinds of other forms.In the embodiment shown in Figure 13 a, flow-disturbing air compensation device 45 is tubule 452 of the UNICOM to plenum chamber 42, tubule 452 On offer a plurality of flow-disturbing hole 451'.In the embodiment shown in Figure 13 b, flow-disturbing air compensation device 45 is tubule 453 of a plurality of UNICOMs to plenum chamber 42, and tubule 453 stretches to cylindrical inner wall 41 inside simultaneously forms flow-disturbing hole 451'' in free end.In the embodiment shown in Figure 13 c, flow-disturbing air compensation device 45 is tubule 454 of the Liang Ge UNICOMs to plenum chamber 42, tubule 454 Stretch on the inside of cylindrical inner wall 41 and the annular tubule 455 of UNICOM one on free end, annular tubule 455 and offer a plurality of flow-disturbing hole 451'''.

Fig. 7,8,9 show another embodiment of the present invention.First difference of this embodiment and preferred embodiment is burner 30 Blast area 33 and the plenum chamber 42 of air compensation device 40 be not joined directly together logical, but UNICOM is to air blower 51 respectively.Second difference is to remove to accommodate electrical equipment 50 in auxiliary equipment portion 20 There is fuel conveying mechanism 60 outside.Fuel conveying mechanism 60 includes a hopper 61 with a lower section discharging opening 611, the discharging opening 611 an of one end and the lower section of hopper 61 The feed cylinder 62 that the other end that is connected is stretched into combustion zone 32, and a rotatable fuel spiral pushing bar 63 being contained in feed cylinder 62.The circuit diagram of electrical equipment 50 such as Figure 12 It is shown, including air blower 51, a power supply 52, power switch 53, a power supply indicator 54 that can be blown to the blast area 33 of burner 30 and plenum chamber 42 The feeding motor 55 rotated with a driving fuel spiral pushing bar 63.Power switch 53 is installed on side 12, can control the power supply of whole circuit, and switch indication light 54 is also installed on side 12 On near power switch 53, be used to refer to the folding condition of power switch 53.A switchable chamber door 121 is offered on 12 sideways.

Cylindrical inner wall 41 Shape single diameter necessarily as shown in preferred embodiment cylindrical shape, and can be generally cylindrical any shape, such as waveform, or the complex cylindrical structure as washing machine drum.Specific such as Figure 10 and Figure 11 Shown, the cylindrical inner wall 41 used in the embodiment shown in Fig. 7 is exactly one end truncated conical shape more slightly larger than other end diameter.In addition, in this embodiment, the inclined wind apparatus 43,44 of forward and reverse The opening 441 of each first opening 431 and second be a slit, every slit is less than 45 more than 0 degree with bus the g c at an angle, angle c of cylindrical inner wall 41 Degree, it is preferred that 15 degree.

When needing to stop burning, user can be extinguished with disconnecting power switch 64, switch indication light 65, feeding motor 61 Stop operating, air blower 62 stops.Do not have fuel in the new supply of fuel 70 burning, combustion zone 32 will after-flame quickly, user can open the ashes in chamber door 121, cleaning blast area 33.Fuel rack 31 marginal portion can be deflected up certain angle, and a piece of low land is formed at middle part.Low land can gather fuel 70, so as to avoid edge fuel combustion from being heated insufficient generation black smoke.

Claims

1. a kind of biomass fuel stove, the stove uses biomass fuel（ 70 ）Particle, and including a body that can be placed on ground（ 1 ）, body（ 1 ）Including a top surface（ 11 ）And one from top surface（ 11 ）The side that periphery is extended downwardly towards ground direction（ 12 ）, body（ 1 ）Inside accommodate a combustion section（ 10 ）With an auxiliary equipment portion（ 20 ）；Combustion section（ 10 ）Including a burner（ 30 ）, burner（ 30 ）With a fuel rack（ 31 ）, fuel rack（ 31 ）Top forms combustion zone（ 32 ）, blast area formed below（ 33 ）, fuel rack（ 31 ）On offer several vent apertures（ 311 ）；Combustion zone（ 32 ）Top provided with air compensation device（ 40 ）；Air compensation device（ 40 ）Including a cylindrical inner wall（ 41 ）Cylindrical inner wall is enclosed in one（ 41 ）The plenum chamber in outside（ 42 ）, blast area（ 33 ）And plenum chamber（ 42 ）It is connected, and passes through an air supply duct（ 34 ）Unification is by an air blower（ 51 ）Oxygenating is provided；Auxiliary equipment portion（ 20 ）Inside accommodate electrical equipment（ 50 ）；Electrical equipment（ 50 ）Including air blower（ 51 ） , power supply（ 52 ）With a power switch（ 53 ）, it is characterised in that the air compensation device（ 40 ）Cylindrical inner wall（ 41 ）On be provided with least a line forward bias wind apparatus（ 43 ）At least a line reversely partially wind apparatus（ 44 ）.

2. the biomass fuel stove as described in claim 1, it is characterised in that per a line forward bias wind apparatus（ 43 ）Including a plurality of first openings（ 431 ） , in cylindrical inner wall（ 41 ）Outer surface on, each first opening（ 431 ）Left side or each first opening（ 431 ）Right side be all formed with first flow deflector（ 432 ） , every first flow deflector（ 432 ）To the corresponding first opening（ 431 ）Direction extension and and cylindrical inner wall（ 41 ）Outer surface be more than 0 degree less than 90 degree of angle a in one ；The reverse wind apparatus partially per a line（ 44 ）Including a plurality of second openings（ 441 ）, in cylindrical inner wall（ 41 ）Outer surface on, each second opening（ 441 ）With the first flow deflector（ 432 ）Opposite side is all formed with second flow deflector（ 442 ）, every second flow deflector（ 442 ）To the corresponding second opening（ 441 ）Direction extension and and cylindrical inner wall（ 41 ） Outer surface be more than 0 degree less than 90 degree of angle b in one.

3. the biomass fuel stove as described in claim 1, it is characterised in that in cylindrical inner wall（ 41 ）It is provided with several flow-disturbing air compensation devices（ 45 ）。

4. the biomass fuel stove as described in claim 2, it is characterised in that in cylindrical inner wall（ 41 ）It is provided with several flow-disturbing air compensation devices（ 45 ）。

5. the biomass fuel stove as described in claim 3, it is characterised in that flow-disturbing air compensation device（ 45 ）Cylindrical inner wall is formed at including several（ 41 ） On flow-disturbing hole（ 451 ）.

6. the biomass fuel stove as described in claim 4, it is characterised in that flow-disturbing air compensation device（ 45 ）Cylindrical inner wall is formed at including several（ 41 ） On flow-disturbing hole（ 451 ）.

7. the biomass fuel stove as described in claim 3, it is characterised in that flow-disturbing air compensation device（ 45 ）It is a UNICOM to plenum chamber（ 42 ）Tubule（ 452 ）, tubule（ 452 ）On offer a plurality of flow-disturbing holes（ 451' ）.

8. the biomass fuel stove as described in claim 4, it is characterised in that flow-disturbing air compensation device（ 45 ）It is a UNICOM to plenum chamber（ 42 ）Tubule（ 452 ）, tubule（ 452 ）On offer a plurality of flow-disturbing holes（ 451' ）.

9. the biomass fuel stove as described in claim 3, it is characterised in that flow-disturbing air compensation device（ 45 ）It is a plurality of UNICOMs to plenum chamber（ 42 ）Tubule（ 453 ）, tubule（ 453 ）Stretch to cylindrical inner wall（ 41 ）Inside and form flow-disturbing hole in free end（ 451'' ）.

10. the biomass fuel stove as described in claim 4, it is characterised in that flow-disturbing air compensation device（ 45 ）It is a plurality of UNICOMs to plenum chamber（ 42 ） Tubule（ 453 ）, tubule（ 453 ）Stretch to cylindrical inner wall（ 41 ）Inside and form flow-disturbing hole in free end（ 451'' ）.

11. the biomass fuel stove as described in claim 3, it is characterised in that flow-disturbing air compensation device（ 45 ）It is Liang Ge UNICOMs to plenum chamber（ 42 ）Tubule（ 454 ）, tubule（ 454 ）Stretch to cylindrical inner wall（ 41 ）Inside and the annular tubule of UNICOM one on free end（ 455 ）, annular tubule（ 455 ）On offer a plurality of flow-disturbing holes（ 451''' ）.

12. the biomass fuel stove as described in claim 4, it is characterised in that flow-disturbing air compensation device（ 45 ）It is Liang Ge UNICOMs to plenum chamber（ 42 ）Tubule（ 454 ）, tubule（ 454 ）Stretch to cylindrical inner wall（ 41 ）Inside and the annular tubule of UNICOM one on free end（ 455 ）, annular tubule（ 455 ）On offer a plurality of flow-disturbing holes（ 451''' ）.

13. a kind of biomass fuel stove, the stove uses biomass fuel（ 70 ）Particle, and including a body that can be placed on ground（ 1 ）, body（ 1 ）Including a top surface（ 11 ）And one from top surface（ 11 ）The side that periphery is extended downwardly towards ground direction（ 12 ）, body（ 1 ）Inside accommodate a combustion section（ 10 ）With an auxiliary equipment portion（ 20 ）；Combustion section（ 10 ）Including a burner（ 30 ）, burner（ 30 ）With a fuel rack（ 31 ）, fuel rack（ 31 ）Top forms combustion zone（ 32 ）, blast area formed below（ 33 ）, fuel rack（ 31 ）On offer several vent apertures（ 311 ）；Combustion zone（ 32 ）Top provided with air compensation device（ 40 ）；Air compensation device（ 40 ）Including a cylindrical inner wall（ 41 ）Cylindrical inner wall is enclosed in one（ 41 ）The plenum chamber in outside（ 42 ）, blast area（ 33 ）And plenum chamber（ 42 ）Equal UNICOM to an offer oxygenating air blower（ 51 ）；Auxiliary equipment portion（ 20 ）Inside accommodate electrical equipment（ 50 ）With fuel conveying mechanism（ 60 ）；Fuel conveying mechanism（ 60 ）There is a lower section discharging opening including one（ 611 ）Hopper（ 61 ）, an one end and hopper（ 61 ）Discharging opening（ 611 ）The other end that is connected stretches into combustion zone（ 32 ）In feed cylinder（ 62 ）, and one be rotatably contained in feed cylinder（ 62 ）In fuel spiral pushing bar（ 63 ）；Electrical equipment（ 50 ）Including air blower（ 51 ）, power supply（ 52 ）, a power switch（ 53 ）And One driving fuel spiral pushing bar（ 63 ）The feeding motor of rotation（ 55 ）, it is characterised in that the air compensation device（ 40 ）Cylindrical inner wall（ 41 ）On be provided with least a line forward bias wind apparatus（ 43 ）At least a line reversely partially wind apparatus（ 44 ）.

14. the biomass fuel stove as described in claim 13, it is characterised in that per a line forward bias wind apparatus（ 43 ）Including a plurality of first openings（ 431 ） , in cylindrical inner wall（ 41 ）Outer surface on, each first opening（ 431 ）Left side or each first opening（ 431 ）Right side be all formed with first flow deflector（ 432 ） , every first flow deflector（ 432 ）To the corresponding first opening（ 431 ）Direction extension and and cylindrical inner wall（ 41 ）Outer surface be more than 0 degree less than 90 degree of angle a in one ；The reverse wind apparatus partially per a line（ 44 ）Including a plurality of second openings（ 441 ）, in cylindrical inner wall（ 41 ）Outer surface on, each second opening（ 441 ）With the first flow deflector（ 432 ）Opposite side is all formed with second flow deflector（ 442 ）, every second flow deflector（ 442 ）To the corresponding second opening（ 441 ）Direction extension and and cylindrical inner wall（ 41 ） Outer surface be more than 0 degree less than 90 degree of angle b in one.

15. the biomass fuel stove as described in claim 13, it is characterised in that in cylindrical inner wall（ 41 ）It is provided with several flow-disturbing air compensation devices（ 45 ）。

16. the biomass fuel stove as described in claim 14, it is characterised in that in cylindrical inner wall（ 41 ）It is provided with several flow-disturbing air compensation devices（ 45 ）。

17. the biomass fuel stove as described in claim 15, it is characterised in that flow-disturbing air compensation device（ 45 ）Cylindrical inner wall is formed at including several（ 41 ） On through hole（ 451 ）.

18. the biomass fuel stove as described in claim 16, it is characterised in that flow-disturbing air compensation device（ 45 ）Cylindrical inner wall is formed at including several（ 41 ） On through hole（ 451 ）.

19. the biomass fuel stove as described in claim 15, it is characterised in that flow-disturbing air compensation device（ 45 ）It is a UNICOM to plenum chamber（ 42 ） Tubule（ 452 ）, tubule（ 452 ）On offer a plurality of flow-disturbing holes（ 451' ）.

20. the biomass fuel stove as described in claim 16, it is characterised in that flow-disturbing air compensation device（ 45 ）It is a UNICOM to plenum chamber（ 42 ） Tubule（ 452 ）, tubule（ 452 ）On offer a plurality of flow-disturbing holes（ 451' ）.

21. the biomass fuel stove as described in claim 15, it is characterised in that flow-disturbing air compensation device（ 45 ）It is a plurality of UNICOMs to plenum chamber（ 42 ） Tubule（ 453 ）, tubule（ 453 ）Stretch to cylindrical inner wall（ 41 ）Inside and form flow-disturbing hole in free end（ 451'' ）.

22. the biomass fuel stove as described in claim 16, it is characterised in that flow-disturbing air compensation device（ 45 ）It is a plurality of UNICOMs to plenum chamber（ 42 ） Tubule（ 453 ）, tubule（ 453 ）Stretch to cylindrical inner wall（ 41 ）Inside and form flow-disturbing hole in free end（ 451'' ）.

23. the biomass fuel stove as described in claim 15, it is characterised in that flow-disturbing air compensation device（ 45 ）It is Liang Ge UNICOMs to plenum chamber（ 42 ） Tubule（ 454 ）, tubule（ 454 ）Stretch to cylindrical inner wall（ 41 ）Inside and the annular tubule of UNICOM one on free end（ 455 ）, annular tubule（ 455 ） On offer a plurality of flow-disturbing holes（ 451''' ）.

24. the biomass fuel stove as described in claim 16, it is characterised in that flow-disturbing air compensation device（ 45 ）It is Liang Ge UNICOMs to plenum chamber（ 42 ） Tubule（ 454 ）, tubule（ 454 ）Stretch to cylindrical inner wall（ 41 ）Inside and the annular tubule of UNICOM one on free end（ 455 ）, annular tubule（ 455 ） On offer a plurality of flow-disturbing holes（ 451''' ）.