CN103423775B - A kind of biomass half-gasification oven - Google Patents
A kind of biomass half-gasification oven Download PDFInfo
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- CN103423775B CN103423775B CN201210162048.3A CN201210162048A CN103423775B CN 103423775 B CN103423775 B CN 103423775B CN 201210162048 A CN201210162048 A CN 201210162048A CN 103423775 B CN103423775 B CN 103423775B
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- vaporizer
- air holes
- secondary air
- combustion
- diversion pipe
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- 238000002309 gasification Methods 0.000 title claims abstract description 27
- 239000002028 Biomass Substances 0.000 title claims abstract description 23
- 239000006200 vaporizer Substances 0.000 claims abstract description 92
- 238000002485 combustion reaction Methods 0.000 claims abstract description 68
- 239000002918 waste heat Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 abstract description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 20
- 239000001301 oxygen Substances 0.000 abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 12
- 239000012141 concentrate Substances 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Solid-Fuel Combustion (AREA)
- Air Supply (AREA)
Abstract
A kind of biomass half-gasification oven, including furnace body, upper of furnace body set combustion chamber, and lower portion of furnace body sets vaporizer, and vaporizer is connected with combustion chamber by diversion pipe；Wind turbine connection main air duct, secondary air passage, main air duct connects the main air holes of vaporizer, and main air holes is located at the bottom or lower part of vaporizer, the secondary air holes of secondary air passage connection vaporizer, secondary air holes is located at the top or top of vaporizer, and secondary air passage also connects the mixed air holes on diversion pipe side wall.The present invention between vaporizer and combustion chamber by setting diversion pipe, and utilize time air holes and mixed air holes, difference of the automatic air stream for realizing time air passage in stage on fire and combustion phases flows to distribution ratio, so that gasification furnace had both possessed fast characteristic on fire, allow the combustible gas of generation most of because few oxygen is not in vaporizer advanced combustion again, but gather cookware base concentrated combustion, heat concentrates release, cooker absorption rate is high, good energy-conserving effect.
Description
Technical field
The present invention relates to the domestic burners using solid fuels such as bavin, coals, and in particular to a kind of biomass half-gasification oven.
Background technology
In known technology, the tar produced in the biomass gasifying furnace course of work easily gathers blocking appendix and burner,
In order to solve technical problem, some technical solutions set combustion chamber above vaporizer, vaporizer are sent using appendix is cancelled
The combustible gas gone out carries out direct combustion processing.Such as the patent document of Publication No. CN101487597, a kind of biomass semi-gasification is disclosed
Stove, including panel fire surrounding hood and interior stove, the interior stove top are equipped with burner, and the region that the burner surrounds is combustion chamber,
The panel fire surrounding hood is arranged on above interior stove and covers at burner periphery, and the interior stove overcoat is equipped with secondary fan housing, described interior
The inner casing of stove surrounds the secondary air channel of annular with secondary fan housing, and the burner, panel fire surrounding hood and the inner casing of interior stove surround
The secondary air chamber of annular, secondary air channel lower end be equipped with the secondary air inlet that communicates of outside, secondary air channel upper end be equipped with
The Secondary Air that secondary air chamber communicates exports, and multiple connection secondary air chambers and combustion chamber are circumferentially evenly arranged with the burner
Secondary air hole, which has secondary air inlet combustion-supporting effect.But the technical solution still has three aspects
Deficiency, first, difficulty on fire, burning is slow, and firepower is less than normal；Second, the oxygen supply of vaporizer is easily excessive, combustible gas is caused in gas chamber processed
Interior advanced combustion, the flame location of generation is low, and flame envelope can not reach cookware base, and heat utilization ratio is low；Third, combustible gas burns
The flame of generation is wide, and firepower disperses, and is unfavorable for cooker and absorbs heat.
In order to solve biomass fuel slow technical problem on fire in stove, generally all using confession of the increase to vaporizer
Wind, improve vaporizer oxygen supply it is combustion-supporting to carry out, to shorten process on fire；And the technology for solving combustible gas advanced combustion is asked
Topic, then need in combustion phases, reduces the oxygen supply of vaporizer upper space, make generation combustible gas it is most of because of few oxygen and
Will not in vaporizer advanced combustion.The conflicting requirements that gasification furnace supplies oxygen on fire and burning two benches are resolved, it is right
It is of great significance in the working performance for improving gasification furnace.
The content of the invention
The present invention provides a kind of biomass half-gasification oven, and the biomass fuel in stove can be allowed on fire fast, burnt prosperous, and energy
Make the combustible gas of generation most of because few oxygen is not in vaporizer advanced combustion, but gather cookware base concentrated combustion, be beneficial to
Cooker absorbs, and heat utilization ratio is high.
The technical solution adopted by the present invention is：A kind of biomass half-gasification oven, including furnace body, upper of furnace body set burning
Room, lower portion of furnace body set vaporizer, and vaporizer is connected with combustion chamber by diversion pipe；Wind turbine connection main air duct, secondary air passage, it is main
Air passage connects the main air holes of vaporizer, and main air holes is located at the bottom or lower part of vaporizer, and the secondary air holes of secondary air passage connection vaporizer is secondary
Air holes is located at the top or top of vaporizer, and secondary air passage also connects the mixed air holes on diversion pipe side wall.
Blower fan work produces air stream, and portion of air stream is admitted to main air duct, via the master of vaporizer bottom or lower part
Air holes enters vaporizer, and rises along the gap between gasification indoor biological fuel, for the indoor biomass fuel that gasifies
Burning provides comburant oxygen；Another part air stream is admitted to time air passage, and is again split into two-way, all the way via positioned at vaporizer
The secondary air holes on top or top enters vaporizer, and comburant oxygen, another way warp are provided for the indoor biomass fuel combustion that gasifies
Diversion pipe is entered by the mixed air holes on diversion pipe side wall, is mixed with flowing through the combustible gas in diversion pipe, improves the oxygen in combustible gas
Gas content, makes the combustible gas fully burning as far as possible in the combustion chamber sprayed from diversion pipe upper end, produces strong firepower.
In the stage on fire, both by main air duct, main air holes to vaporizer bottom or the air stream of lower part offer, further through secondary
Air passage, secondary air holes provide air stream to vaporizer top or top, and the technique effect of generation has：On the one hand whole vaporizer can be made
Interior oxygen is abundant, and the upper and lower surface of especially combustion zone has the oxygen supply of abundance, and combustion-supporting effect is good, and the burning of point of origin is fast
Speed becomes prosperous, and combustion zone diffusion is fast, and process on fire is short；On the other hand, when by secondary air passage, secondary air holes at the top of vaporizer or top
When air stream is provided, the air pressure of vaporizer upper space can be improved, so that slow down the air velocity for flowing through combustion zone from the bottom up,
And then reduce the heat that air stream is taken away from combustion zone so that, temperature few in the combustion zone of ignition phase both thermal loss
Height, but oxygen is abundant, and burning is prosperous, and combustion zone can expand diffusion rapidly, realize rapid ignition.
In combustion phases, gasification indoor biological fuel combustion can produce a large amount of combustible gases, the gas of vaporizer upper space
Pressure can further improve, so as to hinder air stream to enter vaporizer via secondary air holes；On the other hand a large amount of combustible gases are through diversion pipe
Flowing in combustion chamber, flows through the air velocity inside diversion pipe and substantially accelerates, and the high gas flow inside diversion pipe can be by mixing air holes pair
Air in secondary air passage produces negative pressure suction effect, therefore is significantly increased via the air capacity that mixed air holes enters in diversion pipe, via
The air capacity that secondary air holes enters vaporizer is greatly decreased, so as to drastically reduce the area the indoor oxygen content of gasification, makes vaporizer
Interior biomass fuel is in the smoldering state of low oxygen, and the combustible gas of generation will not largely shift to an earlier date because of anoxic in vaporizer
Burning, and can be after the air stream for flowing through diversion pipe and being sent into mixed air holes mixes, when spraying into combustion chamber from diversion pipe upper end again
Fully burning, the flame envelope for generation of burning can concentrate the cookware base above through furnace body, and heat concentrates release, and cooker is easy to absorb
Utilize, heat utilization ratio is high.
Above-mentioned diversion pipe cross-sectional area is the 2%-30% of vaporizer cross-sectional area.Diversion pipe cross section and vaporizer are transversal
Ratio between face, can influence to flow through the air velocity in diversion pipe during work, and then influence the air stream difference in time air passage
Time air holes, the allocation proportion of mixed air holes are flowed through, reasonably selects the ratio section between diversion pipe cross section and gasification chamber cross-section,
Both it can allow the indoor biomass fuel gasifying speed of gasification is fast, and the combustible gas of generation is more, and vaporizer upper space can be allowed to keep
It is most of because few oxygen is without advanced combustion in few oxygen condition, the combustible gas of generation.Further improve and be, diversion pipe cross section
Product is the 3%-15% of vaporizer cross-sectional area, then can obtain more preferable aerogenesis and combustion efficiency.
Above-mentioned diversion pipe upper end sets poly- combustion mouth, and it is upper and lower ends opening and up-small and down-big ducted body to gather combustion mouth.Leading
Flow tube upper end sets poly- combustion mouth, on the one hand, makes the combustible gas from the outflow of diversion pipe upper end further to poly- combustion mouth upper end opening collection
In, and burning is sprayed from poly- combustion mouth upper end opening, flame is more concentrated, and the heat of generation is more conducive to cookware base and absorbs；Separately
On the one hand, eddy flow can occur for the combustible gas sprayed from poly- combustion mouth upper end so that the burning of combustible gas is more abundant, and flame envelope temperature is more
Height, the heat of release is more, the firepower bigger of generation.
Above-mentioned wind turbine is via adjusting valve connection main air duct and time air passage.By being set between wind turbine and main air duct, secondary air passage
Adjusting valve is put, the air quantity of main air duct, secondary air passage is adjusted by adjusting valve, so as to adjust combusting firepower size.
Above-mentioned vaporizer is provided with the charge door outside connection.Charge door pair can be passed through in the case of not interrupt cooking
Vaporizer adds biomass fuel, improves gasification furnace continuous work ability.
Above-mentioned combustion chamber waste heat room, reservoir is set in waste heat room.The tail gas that combustion chambers burn produces can be discharged into
Waste heat room, waste heat from tail gas can heat the water in reservoir, produce domestic hot-water, and waste heat from tail gas is utilized.
The present invention utilizes time air holes and mixed air holes by setting diversion pipe between vaporizer and combustion chamber, automatic real
Difference of the air stream in occurrence air passage in stage on fire and combustion phases flows to distribution ratio so that gasification furnace had both possessed on fire fast
Characteristic, and make the combustible gas of generation most of because few oxygen is not in vaporizer advanced combustion, but gather cookware base and concentrate combustion
Burn, heat concentrates release, and cooker absorption rate is high, good energy-conserving effect.
Brief description of the drawings
Fig. 1 is the structure diagram of the first embodiment of the invention.
Fig. 2 is the structure diagram of second of embodiment of the invention.
Fig. 3 is the operating diagram of embodiment illustrated in fig. 2.
Fig. 4 is the structure diagram of the third embodiment of the invention.
Fig. 5 is the structure diagram of the 4th kind of embodiment of the invention.
Embodiment
In the following, embodiments of the present invention are described further with reference to attached drawing.
Fig. 1 shows the embodiment of the first biomass half-gasification oven, including furnace body 1, and 1 top of furnace body sets combustion chamber
11,1 lower part of furnace body sets vaporizer 12, and vaporizer 12 is connected with combustion chamber 11 by diversion pipe 13；Wind turbine 2 connects main air duct
21st, secondary air passage 22, main air duct 21 connect the main air holes 121 of vaporizer 12, and main air holes 121 is located at the bottom of vaporizer 12；Secondary air passage
The secondary air holes 122 of 22 connection vaporizers 12, secondary air holes 122 are located at the top of vaporizer 12；Secondary air passage 22, which also connects, is located at water conservancy diversion
Mixed air holes 131 on 13 side wall of pipe.
Fig. 2 shows the embodiment of second of biomass half-gasification oven, including furnace body 1, and 1 top of furnace body sets combustion chamber
11,1 lower part of furnace body sets vaporizer 12, and vaporizer 12 is connected with combustion chamber 11 by diversion pipe 13；Wind turbine 2 connects main air duct
21st, secondary air passage 22, main air duct 21 connect the main air holes 121 of vaporizer 12, and main air holes 121 is located at the bottom of vaporizer 12, and is in ring
Shape is uniformly distributed multiple, is conducive to air stream and relatively evenly enters vaporizer 12, improves combustion-supporting effect；The secondary connection of air passage 22 gasification
The secondary air holes 122 of room 12, secondary air holes 122 are located at the top of vaporizer 12, and are uniformly distributed in a ring multiple, are conducive to air stream
It is more uniform to enter vaporizer 12, improve combustion-supporting effect；Secondary air passage 22 also connects the mixed air holes 131 on 13 side wall of diversion pipe；
Wind turbine 2 connects adjusting valve 3, and adjusting valve 3 connects main air duct 21 and time air passage 22；43 upper end of diversion pipe sets poly- combustion mouth 5, gathers combustion mouth
5 be upper and lower ends opening and up-small and down-big ducted body.
Fig. 3 shows the operating diagram of embodiment illustrated in fig. 2, and the air that wind turbine 2 produces flows through adjusting valve 3 and adjusts distribution
Afterwards, portion of air stream enters main air duct 21, and is sent into from the main air holes 121 of 12 bottom of vaporizer in vaporizer 12, for gasification
Room 12 provides air stream from the bottom up；Another part air stream is sent into time air passage 22, and is again split into two-way, all the way via position
Secondary air holes 122 in the top of vaporizer 12 enters vaporizer 12, provides oxygen for the biomass fuel combustion in vaporizer 12 and helps
Combustion, another way enters in diversion pipe 13 via the mixed air holes 131 on 13 side wall of diversion pipe, with flowing through the combustible gas in diversion pipe 13
Mix, improve the oxygen content in combustible gas；Enter from the combustible gas of 13 upper end of diversion pipe outflow in poly- combustion mouth 5, and from poly- combustion
The upper end opening of mouth 5 is sprayed to combustion chamber 11 and burnt, and combustion flame is concentrated, and produces strong firepower, its flame envelope concentrates through cooker bottom
Portion, is easy to be absorbed by cooker, and heat utilization ratio is high.
Fig. 4 shows the embodiment of the third biomass half-gasification oven, including furnace body 1, and 1 top of furnace body sets combustion chamber
11,1 lower part of furnace body sets vaporizer 12, and vaporizer 12 is connected with combustion chamber 11 by diversion pipe 13；Wind turbine 2 connects main air duct
21st, secondary air passage 22, main air duct 21 connect the main air holes 121 of vaporizer 12, and main air holes 121 is located at the bottom of vaporizer 12, and is in ring
Shape is uniformly distributed multiple, is conducive to air stream and relatively evenly enters vaporizer 12, improves combustion-supporting effect；The secondary connection of air passage 22 gasification
The secondary air holes 122 of room 12, secondary air holes 122 are located at the top of vaporizer 12, and are uniformly distributed in a ring multiple, are conducive to air stream
Relatively evenly enter vaporizer 12, improve combustion-supporting effect；Secondary air passage 22 also connects the mixed air holes on 13 side wall of diversion pipe
131；Wind turbine 2 connects adjusting valve 3, and adjusting valve 3 connects main air duct 21 and time air passage 22；43 upper end of diversion pipe sets poly- combustion mouth 5, gathers
It is upper and lower ends opening and up-small and down-big ducted body to fire mouth 5.Vaporizer 12 be provided with connection outside charge door 6, easy to
Addition fuel in vaporizer 12；The tail gas of combustion chamber 11 is discharged into waste heat room 14, and reservoir 7,7 energy of reservoir are set in waste heat room 14
Hot water is produced using the waste heat of tail gas.
Fig. 5 shows the embodiment of the 4th kind of biomass half-gasification oven, including furnace body 1, and 1 top of furnace body sets combustion chamber
11,1 lower part of furnace body sets vaporizer 12, and vaporizer 12 is connected with combustion chamber 11 by diversion pipe 13；Wind turbine 2 connects main air duct
21st, secondary air passage 22, main air duct 21 connect the main air holes 121 of vaporizer 12, and main air holes 121 is located at the lower part of vaporizer 12, and along gas
Change 12 side wall of room and be uniformly distributed in a ring multiple, be conducive to air stream and relatively evenly enter vaporizer 12, raising combustion-supporting effect；It is secondary
Air passage 22 connects the secondary air holes 122 of vaporizer 12, and secondary air holes 122 is located at the top of vaporizer 12, and is in along 12 side wall of vaporizer
Annular is uniformly distributed multiple, is conducive to air stream and relatively evenly enters vaporizer 12, improves combustion-supporting effect；Secondary air passage 22 also connects
Mixed air holes 131 on 13 side wall of diversion pipe；Wind turbine 2 connects adjusting valve 3, and adjusting valve 3 connects main air duct 21 and time air passage 22；
43 upper end of diversion pipe sets poly- combustion mouth 5, and it is upper and lower ends opening and up-small and down-big ducted body to gather combustion mouth 5.
The embodiment of technical solution similar to Figure 1 further includes：Main air holes is located at the bottom of vaporizer, and uniform in a ring
Cloth is multiple, and secondary air holes is located at the top of vaporizer, and is uniformly distributed in a ring along vaporizer side wall multiple.Alternatively, main air holes position
In the lower part of vaporizer, and it is uniformly distributed in a ring along vaporizer side wall multiple, secondary air holes is located at the top of vaporizer, and is in ring
The uniform cloth of shape is multiple.
Certainly, the technical inspiration that those skilled in the art provide according to the present invention, with reference to known technology and common technical knowledge, institute
The equivalent technical solutions made, should be considered as the embodiment of the present invention, belong to the scope that the claims in the present invention are protected.
Claims (3)
1. a kind of biomass half-gasification oven, including furnace body, upper of furnace body sets combustion chamber, and lower portion of furnace body sets vaporizer, it is special
Sign is that vaporizer is connected with combustion chamber by diversion pipe；Wind turbine connection main air duct, secondary air passage, the main air duct connection main wind of vaporizer
Hole, main air holes are located at the bottom or lower part of vaporizer, the secondary air holes of secondary air passage connection vaporizer, and secondary air holes is located at the top of vaporizer
Portion or top, secondary air passage also connect the mixed air holes on diversion pipe side wall；Diversion pipe cross-sectional area is vaporizer cross-sectional area
3%-15%, diversion pipe upper end sets poly- combustion mouth, and it is upper and lower ends opening and up-small and down-big ducted body to gather combustion mouth.
2. a kind of biomass half-gasification oven as claimed in claim 1, it is characterized in that wind turbine is via adjusting valve connection main air duct, secondary
Air passage.
A kind of 3. biomass half-gasification oven as claimed in claim 1, it is characterized in that combustion chamber waste heat room, waste heat are set in room
Put reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210162048.3A CN103423775B (en) | 2012-05-23 | 2012-05-23 | A kind of biomass half-gasification oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210162048.3A CN103423775B (en) | 2012-05-23 | 2012-05-23 | A kind of biomass half-gasification oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103423775A CN103423775A (en) | 2013-12-04 |
| CN103423775B true CN103423775B (en) | 2018-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210162048.3A Active CN103423775B (en) | 2012-05-23 | 2012-05-23 | A kind of biomass half-gasification oven |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465773B (en) * | 2015-12-25 | 2017-11-07 | 潘汉祥 | A kind of oxygen supply heat-proof device and the flammable combustion chamber with the device |
| CN105757722B (en) * | 2016-03-07 | 2018-05-15 | 四川眉能燃具有限公司 | A kind of oxygen-enriched combusting method of biomass stove |
| CN105546588B (en) * | 2016-03-07 | 2018-01-05 | 四川眉能燃具有限公司 | A kind of biomass stove of efficient low-discharging |
| CN106287828B (en) * | 2016-08-31 | 2018-12-28 | 内蒙古圣燚环保科技有限公司 | The combustion-supporting multistage stove of multilayer |
| CN107023858A (en) * | 2017-05-23 | 2017-08-08 | 三河市亿亚能源设备制造有限公司 | A kind of semi-gasification cooking and heating furnace |
| CN111706880A (en) * | 2020-04-30 | 2020-09-25 | 周英勇 | System for energy-conserving firewood kitchen and waste heat are used for indoor heating |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201133660Y (en) * | 2007-03-22 | 2008-10-15 | 马良奇 | Air blasting type domestic biomass semi-gasifying stove |
| CN101033859A (en) * | 2007-03-22 | 2007-09-12 | 马良奇 | Manufacture method of household semi-gasification furnace of biomass and gasification furnace thereof |
| CN201081259Y (en) * | 2007-04-25 | 2008-07-02 | 马良奇 | Hot water tank for household biomass gasification stove |
| CN202082954U (en) * | 2011-06-03 | 2011-12-21 | 周德广 | High-efficient biomass gasification furnace |
| CN202561817U (en) * | 2012-05-23 | 2012-11-28 | 湖南省盈峰光能机械有限公司 | Biomass semi-gasification boiler |
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