CN203273957U - Biomass fuel semi-gasification furnace - Google Patents
Biomass fuel semi-gasification furnace Download PDFInfo
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- CN203273957U CN203273957U CN 201320007242 CN201320007242U CN203273957U CN 203273957 U CN203273957 U CN 203273957U CN 201320007242 CN201320007242 CN 201320007242 CN 201320007242 U CN201320007242 U CN 201320007242U CN 203273957 U CN203273957 U CN 203273957U
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- hearth
- burner hearth
- inner cylinder
- oxygen supply
- secondary oxygen
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Abstract
The utility model discloses a biomass fuel semi-gasification furnace, which comprises a casing and a hearth inside the casing. The material of the hearth is metal, a baffle which is transversely perpendicular to the hearth wall is arranged in the hearth to divide the hearth into an upper cavity and a lower cavity, wherein the lower cavity is a gasification chamber, the upper cavity is a combustion chamber, an inner cylinder with the diameter smaller than the hearth diameter and sharing an axial central line with the hearth is arranged in the combustion chamber, a secondary oxygen supply pipe with one end being communicated with the outside world between the hearth and the casing and the other end being communicated with the combustion chamber is arranged between the hearth and the casing; and a secondary oxygen supply hole is formed in the upper part of the inner cylinder, and a reinforced oxygen supply pipe network which is communicated with the secondary oxygen supply pipe is arranged in the lower part of the inner cylinder. The heat transmission effect of the metal hearth is excellent, the temperature of secondary oxygen supply is enabled to be greatly increased, meanwhile, according to the reinforced oxygen supply pipe network in the lower part of the inner cylinder, the secondary oxygen supply in the hearth and an inner cylinder jacket is uniformly conducted to the inner cylinder, the flowing speed of combustible gas coming from the gasification chamber is lowered, the moving direction of gas is changed, and oxygen in gas is enabled to be uniformly mixed with the combustible gas, so that combustion is enabled to be more complete.
Description
Technical field
The utility model relates to a kind of fuel stove, particularly a kind of biomass fuel stove and accessory.
Background technology
Half-gasification oven is minute upper and lower structure generally, and the bottom is vaporizer, and top is the combustion chamber, has some secondary oxygen supplys holes on the inner tube wall of combustion chamber.But present half-gasification oven adopts the potter's clay burner hearth mostly, although it is low that the potter's clay burner hearth has price, the advantage of high insulating effect, but its easily damage in use and transportation, and its good heat insulation effect makes secondary oxygen supply temperature not high, pressure is low, and the combustion chamber only has secondary oxygen supply hole on inner tube wall, and the secondary oxygen supply is inhomogeneous and do not reach the center, combustion chamber, and middle fuel gas can not fully burn, the phenomenon of smoldering can appear in stove and accessory, the waste resource.Especially stove and accessory is at the initial stage of lighting a fire, and the phenomenon of smoldering is more obvious.
The utility model content
The purpose of this utility model is to provide a kind of secondary oxygen supply effective, and fuel gasification combustion is abundant, the half-gasification oven that fuel availability is high.
This biomass fuel half-gasification oven that the utility model provides, the burner hearth that comprises shell and Qi Nei, the material of described burner hearth is metal, a horizontal dividing plate perpendicular to hearth wall is arranged in it, dividing plate is separated into two cavitys in up and down with burner hearth, and lower cavity is vaporizer, and upper chamber is the combustion chamber, have in the combustion chamber diameter less than furnace diameter, with the coaxial inner cylinder to center line of burner hearth, the secondary oxygen supplying tube that an end is in communication with the outside, an end is communicated with the combustion chamber is arranged between burner hearth and shell; Secondary oxygen supply hole is arranged at the top of inner cylinder, the bottom has be communicated with the secondary oxygen supplying tube make the uniform enhanced oxygen blowing pipe network of secondary oxygen supply.
Described enhanced oxygen blowing pipe network comprises some air inlet pipe, and the chuck that forms between air inlet pipe and described inner cylinder and burner hearth is communicated with; Perhaps also comprise the some gas-distributing pipes that are connected with air inlet pipe, a minute pore is all arranged on air inlet pipe and gas-distributing pipe.
The lower end of described burner hearth is connected with base, and the axial centre of base has circular hole, and grate is arranged on circular hole, and a side of base has the ash discharge drawer; The offside of described secondary oxygen supplying tube corresponding described ash discharge drawer between described shell and burner hearth, on described base, there is the through hole that is communicated with ambient atmosphere in corresponding secondary oxygen supply zone; Burner hearth is positioned on the barrel in corresponding secondary oxygen supply zone, top, combustion chamber some air admission holes.
Installing hole with described air inlet pipe coupling is arranged on the barrel of described inner cylinder.
There is diameter at the center of described dividing plate less than the axially extending bore of described inner cylinder diameter.
Between described shell and burner hearth, heat-insulation layer is arranged.
Prior art is compared, the utility model changes the material of burner hearth into metal, secondary oxygen supply zone is positioned at shell, and on the one hand the heat-transfer effect of metal firebox is good, and the heat in burner hearth can conduct in secondary oxygen supply zone soon, air in heating secondary oxygen supplying tube, on the other hand, the secondary oxygen supplying tube has heat-insulation layer outward, has greatly reduced the heat exchange that adds hot-air and cool ambient air in the pipe, so the temperature of secondary oxygen supply improves greatly, so just make gasification, and combustion more easily carry out with more abundant.Enhanced oxygen blowing pipe network by the inner cylinder bottom imports the secondary oxygen supply in burner hearth and inner cylinder chuck in inner cylinder uniformly simultaneously, can reduce on the one hand from the flow velocity of the next fuel gas of vaporizer, change the direction of motion of gas, oxygen in gas is evenly mixed with fuel gas, thereby make burning more complete.So the utility model is compared with prior art, secondary oxygen supply temperature is high, the oxygen supply of burning indoor secondary is even, has overcome the phenomenon of smoldering, and the combustion rate of fuel is high, has the advantage of fuel savings, environmentally safe.
Description of drawings
Fig. 1 is that the master of a kind of preferred embodiment of the present utility model looks the sectional structure schematic diagram.
Fig. 2 is a kind of structural representation of the A-A in Fig. 1.
Fig. 3 is the another kind of structural representation of the A-A in Fig. 1.
The specific embodiment
As shown in Figure 1 to Figure 3, this biomass fuel half-gasification oven that the utility model provides, the burner hearth 2 that comprises shell 1 and Qi Nei, the material of burner hearth 2 is metal, a horizontal dividing plate 3 perpendicular to hearth wall is arranged in it, dividing plate 3 is separated into two cavitys in up and down with burner hearth 2, and lower cavity is vaporizer 5, and upper chamber is combustion chamber 4.The top of combustion chamber 4 is heat-exchanging chamber 11, and its sidewall has the chimney 6 of smoke evacuation.
Have in combustion chamber 4 diameter less than furnace diameter, with the coaxial inner cylinder 41 to center line of burner hearth 2, the secondary oxygen supplying tube 10 that an end is in communication with the outside, an end is communicated with combustion chamber 4 is arranged between burner hearth 2 and shell 1; The length of secondary oxygen supplying tube 10 and burner hearth 2 equal in length.Secondary oxygen supply hole 42 is arranged at the top of inner cylinder 41, the bottom has be communicated with secondary oxygen supplying tube 10 make the uniform enhanced oxygen blowing pipe network 43 of secondary oxygen supply.There is diameter at the center of dividing plate 3 less than the axially extending bore of inner cylinder 41 diameters.Between shell 1 and burner hearth 2, heat-insulation layer is arranged.Enhanced oxygen blowing pipe network 43 comprises air inlet pipe 431 and the symmetrical gas-distributing pipe 432 that is connected on air inlet pipe 431, on air inlet pipe 431 and gas-distributing pipe 432, minute pore 433 is arranged all.Air inlet pipe 431 is positioned on the diameter of transversal periphery of inner cylinder 41, and arranged crosswise has the installing hole with air inlet pipe 431 couplings on the barrel of inner cylinder 41.The lower end of burner hearth 2 is connected with base 7, and the axial centre of base 7 has circular hole, and grate 8 is arranged on circular hole, and a side of base 7 has ash discharge drawer 9; The offside of secondary oxygen supplying tube 10 corresponding ash discharge drawer 9 between shell 1 and burner hearth 2, on base 7, there is the through hole that is communicated with ambient atmosphere in corresponding secondary oxygen supply zone; Burner hearth 2 is positioned on the barrel in corresponding secondary oxygen supply zone, top, combustion chamber some air admission holes 21.The sidewall of vaporizer 5 has fuel dispensing port 51.
The air inlet pipe 431 of enhanced oxygen blowing pipe network 43 can also be arranged in parallel on the transversal periphery of inner cylinder 41, can arrange an air inlet pipe 431 on diameter, other air inlet pipe 431 is arranged symmetrically with about this root air inlet pipe 431 on diameter, all vertically be connected with gas-distributing pipe 432 on every air inlet pipe 41, on air inlet pipe 431 and gas-distributing pipe 432, minute pore 433 arranged all.
The quantity of air inlet pipe 431 and gas-distributing pipe 433 and minute pore 433 and position are determined according to the actual needs of stove and accessory.
first cooker is added during use and be placed on heat-exchanging chamber 11 upper ends after suitable quantity of water, ash discharge drawer 9 is pulled out 1/3rd, living beings are joined in vaporizer 5 by charging aperture 51 light, the process burning is in the time of about 10 minutes, can obviously see direct burning and gasification, and combustion and deposit, shut ash discharge drawer 9, stay 2-3 millimeter crack, this moment, vaporizer 5 interior biomass fuels were in the anoxycausis state, under high temperature action, can separate out continuously imflammable gas, when the high temperature imflammable gas makes progress through combustion chamber 4, produce continuous burning with each minute pore oxygen out from enhanced oxygen blowing pipe network 43, the flue gas that produces is discharged from the chimney 6 of heat-exchanging chamber 11.
Claims (6)
1. biomass fuel half-gasification oven, the burner hearth that comprises shell and Qi Nei, it is characterized in that: the material of described burner hearth is metal, a horizontal dividing plate perpendicular to hearth wall is arranged in it, dividing plate is separated into two cavitys in up and down with burner hearth, and lower cavity is vaporizer, and upper chamber is the combustion chamber, have in the combustion chamber diameter less than furnace diameter, with the coaxial inner cylinder to center line of burner hearth, the secondary oxygen supplying tube that an end is in communication with the outside, an end is communicated with the combustion chamber is arranged between burner hearth and shell; Secondary oxygen supply hole is arranged at the top of inner cylinder, the bottom has be communicated with the secondary oxygen supplying tube make the uniform enhanced oxygen blowing pipe network of secondary oxygen supply.
2. biomass fuel half-gasification oven as claimed in claim 1, it is characterized in that: described enhanced oxygen blowing pipe network comprises some air inlet pipe, the chuck that forms between air inlet pipe and described inner cylinder and burner hearth is communicated with; Perhaps also comprise the some gas-distributing pipes that are connected with air inlet pipe, a minute pore is all arranged on air inlet pipe and gas-distributing pipe.
3. biomass fuel half-gasification oven as claimed in claim 1, it is characterized in that: the lower end of described burner hearth is connected with base, and the axial centre of base has circular hole, and grate is arranged on circular hole, and a side of base has the ash discharge drawer; The offside of described secondary oxygen supplying tube corresponding described ash discharge drawer between described shell and burner hearth, on described base, there is the through hole that is communicated with ambient atmosphere in corresponding secondary oxygen supply zone; Burner hearth is positioned on the barrel in corresponding secondary oxygen supply zone, top, combustion chamber some air admission holes.
4. biomass fuel half-gasification oven as claimed in claim 2, is characterized in that: the installing hole with described air inlet pipe coupling is arranged on the barrel of described inner cylinder.
5. biomass fuel half-gasification oven as claimed in claim 1, it is characterized in that: there is diameter at the center of described dividing plate less than the axially extending bore of described inner cylinder diameter.
6. biomass fuel half-gasification oven as claimed in claim 1, is characterized in that: between described shell and burner hearth, heat-insulation layer is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320007242 CN203273957U (en) | 2013-01-08 | 2013-01-08 | Biomass fuel semi-gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320007242 CN203273957U (en) | 2013-01-08 | 2013-01-08 | Biomass fuel semi-gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203273957U true CN203273957U (en) | 2013-11-06 |
Family
ID=49504356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320007242 Expired - Fee Related CN203273957U (en) | 2013-01-08 | 2013-01-08 | Biomass fuel semi-gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203273957U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465773A (en) * | 2015-12-25 | 2016-04-06 | 潘汉祥 | Oxygen supply and thermal insulation device and flammable gas combustion chamber with same |
| CN106091023A (en) * | 2016-08-17 | 2016-11-09 | 常州市锅炉设备有限公司 | The burner hearth of biomass fired boiler |
-
2013
- 2013-01-08 CN CN 201320007242 patent/CN203273957U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465773A (en) * | 2015-12-25 | 2016-04-06 | 潘汉祥 | Oxygen supply and thermal insulation device and flammable gas combustion chamber with same |
| CN106091023A (en) * | 2016-08-17 | 2016-11-09 | 常州市锅炉设备有限公司 | The burner hearth of biomass fired boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20150108 |
|
| EXPY | Termination of patent right or utility model |