CN203478247U - Biomass gas combustor - Google Patents
Biomass gas combustor Download PDFInfo
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- CN203478247U CN203478247U CN201320513604.7U CN201320513604U CN203478247U CN 203478247 U CN203478247 U CN 203478247U CN 201320513604 U CN201320513604 U CN 201320513604U CN 203478247 U CN203478247 U CN 203478247U
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- burning flame
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- air duct
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Abstract
The utility model relates to a biomass gas combustor which is characterized by comprising a long-term open fire fuel gas channel, a long-term open fire air channel, a main combustion fuel gas channel and a main combustion air channel, wherein an ignition device penetrates through the long-term open fire air channel and extends to the front end of the long-term open fire fuel gas channel, and the front part of the long-term open fire air channel, the front part of the main combustion fuel gas channel and the front part of the main combustion air channel are respectively provided with a swirler; the long-term open fire air channel and the main combustion air channel is respectively provided with a flow regulating device. According to the biomass fuel gas combustor, the long-term open fire fuel gas channel and the long-term open fire air channel are arranged, a long-term open fire standby function is achieved, consumption of liquefied gas or natural gas is reduced, waste of ignition fuel is avoided, and starting time of a boiler is shortened; mixing of air and biomass gas is reasonably controlled, the biomass gas can sufficiently reacts with oxygen in the boiler, tar is burnt up, combustion efficiency is improved, coking of the tar in the combustor and the boiler is prevented, the cleaning workload is reduced, and meanwhile pollution to the environment is reduced.
Description
Technical field
The utility model relates to a kind of burner, especially relates to a kind of biomass gas burner, for the burning of biogas.
Background technology
Biomass energy, as the fourth-largest energy in the world, accounts for 14% left and right of global energy total flow.Biomass energy wide material sources, volatile matter content is high, and content of ashes is low, and sulfur content is low, because growing environment absorbs CO
2amount is equivalent to the CO of burning and exhausting
2amount, so realize CO in energy conversion process
2clean discharge capacity is similar to zero, is conducive to improve greenhouse effects.Research and development efficiently utilize the technology of biomass energy, save conventional fossil energy, and Optimization of Energy Structure, has very important significance.Biogas is the imflammable gas producing through gasification furnace with agricultural crop straw and forestry waste, be biomass energy to an approach of heavy industrialization application development, biomass gas burner is just progressively promoted utilization at present.
Characteristic due to biogas itself, biogas is difficult for direct electricity consumption spark ignition, general biomass gas burner all adopts liquefied gas or natural gas fired rifle to light at present, each burner that starts all needs to consume a certain amount of liquefied gas or natural gas, and all need through a series of security procedures such as valve leak detections before each startup, waste time and energy, and economic benefit is not good.In addition, because the general tar content of biogas is higher, fully cracking is burnt insufficient in existing burner, causes efficiency of combustion to reduce, and easily causes environmental pollution; The resistance of burner channel is slightly large simultaneously, can cause the rapid accumulation of tar, easily cause tar to stop up burner, and cleaning is very difficult.
Utility model content
The applicant, for above-mentioned problem, is studied improvement, and a kind of biomass gas burner is provided, and has ever-burning flame idle function, reduces the consumption of liquefied gas or natural gas, shortens the boiler startup time; Rationally control the mixing of air and biogas, biogas is fully reacted with oxygen in boiler, tar is burnouted, improve efficiency of combustion, prevent tar coking in burner and boiler, reduce cleaning work amount, reduce environment simultaneously.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A biomass gas burner, comprise be positioned at axle center ever-burning flame blast tube, be placed in ever-burning flame air duct outside ever-burning flame blast tube, be placed in main combustion blast tube and outer field main air passage thereof outside ever-burning flame air duct; Igniter is passed described ever-burning flame air duct and is extended to the front end of described ever-burning flame blast tube, and the front portion of described ever-burning flame air duct, described main combustion blast tube and described main air passage is respectively equipped with cyclone; The front end of described main air passage is provided with horn mouth, and described ever-burning flame air duct and described main air passage are respectively equipped with flow regulator.
Further:
Described ever-burning flame blast tube is the first pipeline that is arranged on axle center, second pipe, the 3rd pipeline and shell successively coaxial package outside described the first pipeline, between described the first pipeline and described second pipe, form described ever-burning flame air duct, between described second pipe and described the 3rd pipeline, form described main combustion blast tube, between described the 3rd pipeline and described shell, form described main air passage, described the first pipeline, second pipe, on the outer wall of the 3rd pipeline front portion, swirler blades is set, described the first pipeline, described horn mouth is set in the described shell of second pipe and the 3rd pipeline front end, air intake is arranged on a side of described shell, in described air intake, be provided with dividing plate, described dividing plate is divided into main air entrance and ever-burning flame air intake by described air intake, described main air entrance and ever-burning flame air intake are communicated with respectively described main air passage and described ever-burning flame air duct, in described main air entrance and ever-burning flame air intake, are respectively equipped with flow regulator.
The angle of inclination of the swirler blades in described main air passage is between 40 ° ~ 55 °, the angle of inclination of the swirler blades in described main combustion blast tube is between 20 ° ~ 25 °, and the angle of inclination of the swirler blades in described ever-burning flame air duct is between 40 ° ~ 55 °.
The angle of inclination of the swirler blades in described main air passage is 45 °, and the angle of inclination of the swirler blades in described main combustion blast tube is 20 °, and the angle of inclination of the swirler blades in described ever-burning flame air duct is 45 °.
Between the rear end of described second pipe and described the 3rd pipeline, be provided with cover plate, handle is connected on described cover plate.
The front portion of described shell is provided with mounting flange.
Described flow regulator is rotating valve plate.
Technique effect of the present utility model is:
The disclosed a kind of biomass gas burner of the utility model, arranges ever-burning flame blast tube and ever-burning flame air duct, has ever-burning flame idle function, reduces the consumption of liquefied gas or natural gas, avoids the waste of igniter fuel, shortens the boiler startup time; Rationally control the mixing of air and biogas, biogas is fully reacted with oxygen in boiler, tar is burnouted, improve efficiency of combustion, prevent tar coking in burner and boiler, reduce cleaning work amount, reduce environment simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial structurtes schematic diagram of the 3rd pipeline front portion.
Fig. 3 is the partial structurtes schematic diagram of second pipe front portion.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.
As shown in Fig. 1 ~ 3, the utility model comprises the ever-burning flame blast tube 100 that is positioned at axle center, be placed in the ever-burning flame air duct 200 outside ever-burning flame blast tube 100, be placed in main combustion blast tube 300 and outer field main air passage 400 thereof outside ever-burning flame air duct, in the present embodiment, ever-burning flame blast tube 100 is for being arranged on first pipeline 1 in axle center, second pipe 2, the 3rd pipeline 3 and shell 4 successively coaxial package outside the first pipeline 1, between the first pipeline 1 and second pipe 2, form ever-burning flame air duct 200, between second pipe 2 and the 3rd pipeline 3, form main combustion blast tube 300, between the 3rd pipeline 3 and shell 4, form main air passage 400.Ever-burning flame fuel gas inlet 17 is arranged on a side of shell 4, is communicated with ever-burning flame blast tube 100; Fuel gas inlet 18 is arranged on a side of shell 4, is communicated with main combustion blast tube 300.The front portion of shell 4 is provided with mounting flange 10, and flange 10 is for the integral installation of burner.Igniter 8 is passed ever-burning flame air duct 200 and is extended to the front end of ever-burning flame blast tube 100, and the rear portion of igniter 8 is provided with liquefied gas or gas inlet 801, for liquefied gas or the natural gas igniting ever-burning flame of inputting.On the outer wall of the first pipeline 1 front portion, swirler blades 7 is set, on the outer wall of second pipe 2 front portions, swirler blades 6(is set as Fig. 1,3), on the outer wall of the 3rd pipeline 3 front portions, swirler blades 5(is set as Fig. 1,2), swirler blades 7 is as the cyclone of ever-burning flame air duct 200 front portions, swirler blades 6 is as the cyclone of main combustion blast tube 300 front portions, and swirler blades 5 is as the cyclone of main air passage 400.Swirler blades 7 on the outer wall of common the first pipeline 1 front portion and the angle of inclination C between axle center are between 40 ° ~ 55 °, swirler blades 6 on the outer wall of second pipe 2 front portions and the angle of inclination B between axle center are between 20 ° ~ 25 °, swirler blades 5 on the outer wall of the 3rd pipeline 3 front portions and the angle of inclination A between axle center are between 40 ° ~ 55 °, in the present embodiment, swirler blades 7 and the angle of inclination C between axle center on the outer wall of the first pipeline 1 front portion are 45 °, swirler blades 6 and the angle of inclination B between axle center on the outer wall of second pipe 2 front portions are 20 °, swirler blades 5 and the angle of inclination A between axle center on the outer wall of the 3rd pipeline 3 front portions are 45 °, in addition, swirler blades 5, swirler blades 6, swirler blades 7 is respectively equipped with changeover portion blade 19, can make air-flow more steady.The interior horn mouth 9 that arranges of shell 4 of the first pipeline 1, second pipe 2 and the 3rd pipeline 3 front ends; In the utility model, in ever-burning flame blast tube 100, do not establish cyclone, the cyclone resistance of main combustion blast tube 300 is little, swirl strength is low, effectively reduce the accumulation of tar in passage, simultaneously, cyclone swirl strength in ever-burning flame air duct 200 and main air passage 400 is large, combustion air under the effect of swirl-flow devices with horn mouth 9 actings in conjunction, in burner, be formed centrally high temperature recirculation zone, air is fully mixed with biogas, be conducive to the abundant burning of coke tar particles, by tar also abundant after-flame.Air intake 500 is arranged on a side of shell 4, in air intake 500, be provided with dividing plate 16, dividing plate 16 is divided into main air entrance 13 and ever-burning flame air intake 12 by air intake 500, main air entrance 13 is communicated with main air passage 400, ever-burning flame air intake 12 is communicated with ever-burning flame air duct 200, in main air entrance 13 and ever-burning flame air intake 12, be respectively equipped with flow regulator 11, in the present embodiment, flow regulator 11 is rotating valve plate, can be by outside handle rotational valve plate to regulate the air mass flow that enters main air passage 400 and ever-burning flame air duct 200.Between the rear end of second pipe 2 and the 3rd pipeline 3, be provided with cover plate 14, handle 15 is connected on cover plate 14, because the passage between second pipe 2 and the 3rd pipeline 3 is as main combustion blast tube 300, after long-term use, the tar that biogas remains in wherein can result in blockage to passage, after mounting knob 15, can easily second pipe 2 be split out and be cleared up together with the 3rd pipeline 3.
When practical operation, a small amount of biogas enters ever-burning flame blast tube 100 by ever-burning flame fuel gas inlet 17, the air matching with it enters ever-burning flame air duct 200 and changes and flow to through the cyclone of ever-burning flame air duct 200 interior forward end from ever-burning flame air intake 12, both mix at ever-burning flame blast tube 100, ever-burning flame air duct 200 ports of export, form ever-burning flame torch.Main biomass-burning gas enters main combustion blast tube 300 by fuel gas inlet 18 and changes and flow to through the cyclone of main combustion blast tube 300 interior forward end, the air matching with it enters main air passage 400 and changes and flow to through the cyclone of main air passage 400 interior forward end from main air entrance 13, both mix strongly at main combustion blast tube 300, main air passage 400 ports of export, form Cauldron.The adjusting of the biomass gas burner design of the present embodiment is than being 1:4, at burner minimum output power, is rated output power 1/4.Under minimum output power operating mode, the muzzle velocity of biogas is greater than biogas burning fire flame propagation velocity, effectively prevents the generation of underload tempering phenomenon.Igniter 8 centers in ever-burning flame air duct 200 are provided with ignitor, the electric spark that utilizes electrion to produce is lighted liquefied gas or natural gas, after liquefied gas or flaring are successfully set up, in ever-burning flame blast tube 100, pass into biogas, after biogas mixes with air, by liquefied gas or flaring, light also smooth combustion and form ever-burning flame torch.During boiler short time blowing out, only need the main biomass-burning gas that cuts off main combustion blast tube 300 to supply with, so that the quick startup of boiler.While shutting down in the boiler short time, there is little load flame on duty at burner center, when boiler starts again; need not re-start a series of security procedures such as purging, the leak detection of valve group; directly open main valve, avoided the waste of igniter fuel, shortened the boiler startup time.
The burner of biogas burning of the present utility model, taken into full account that the general calorific value of biogas is on the low side, density is large, be difficult for self lighting, flame propagation velocity is slow, tar content high, rationalization's flow field structure, rationally control the mixing of air and biogas, guarantee biogas can completing combustion, flame length control is within rational scope, can prevent underload tempering again, avoid tar to stop up, thereby guarantee the stability and safety operation of boiler simultaneously.
Claims (7)
1. a biomass gas burner, is characterized in that: comprise be positioned at axle center ever-burning flame blast tube, be placed in ever-burning flame air duct outside ever-burning flame blast tube, be placed in main combustion blast tube and outer field main air passage thereof outside ever-burning flame air duct; Igniter is passed described ever-burning flame air duct and is extended to the front end of described ever-burning flame blast tube, and the front portion of described ever-burning flame air duct, described main combustion blast tube and described main air passage is respectively equipped with cyclone; The front end of described main air passage is provided with horn mouth, and described ever-burning flame air duct and described main air passage are respectively equipped with flow regulator.
2. according to biomass gas burner claimed in claim 1, it is characterized in that: described ever-burning flame blast tube is the first pipeline that is arranged on axle center, second pipe, the 3rd pipeline and shell successively coaxial package outside described the first pipeline, between described the first pipeline and described second pipe, form described ever-burning flame air duct, between described second pipe and described the 3rd pipeline, form described main combustion blast tube, between described the 3rd pipeline and described shell, form described main air passage, described the first pipeline, second pipe, on the outer wall of the 3rd pipeline front portion, swirler blades is set, described the first pipeline, described horn mouth is set in the described shell of second pipe and the 3rd pipeline front end, air intake is arranged on a side of described shell, in described air intake, be provided with dividing plate, described dividing plate is divided into main air entrance and ever-burning flame air intake by described air intake, described main air entrance and ever-burning flame air intake are communicated with respectively described main air passage and described ever-burning flame air duct, in described main air entrance and ever-burning flame air intake, are respectively equipped with flow regulator.
3. according to biomass gas burner claimed in claim 2, it is characterized in that: the angle of inclination of the swirler blades in described main air passage is between 40 ° ~ 55 °, the angle of inclination of the swirler blades in described main combustion blast tube is between 20 ° ~ 25 °, and the angle of inclination of the swirler blades in described ever-burning flame air duct is between 40 ° ~ 55 °.
4. according to biomass gas burner claimed in claim 3, it is characterized in that: the angle of inclination of the swirler blades in described main air passage is 45 °, the angle of inclination of the swirler blades in described main combustion blast tube is 20 °, and the angle of inclination of the swirler blades in described ever-burning flame air duct is 45 °.
5. according to biomass gas burner claimed in claim 2, it is characterized in that: between described second pipe and the rear end of described the 3rd pipeline, be provided with cover plate, handle is connected on described cover plate.
6. according to biomass gas burner claimed in claim 2, it is characterized in that: the front portion of described shell is provided with mounting flange.
7. according to the biomass gas burner described in claim 1 or 2, it is characterized in that: described flow regulator is rotating valve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320513604.7U CN203478247U (en) | 2013-08-22 | 2013-08-22 | Biomass gas combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320513604.7U CN203478247U (en) | 2013-08-22 | 2013-08-22 | Biomass gas combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203478247U true CN203478247U (en) | 2014-03-12 |
Family
ID=50226572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320513604.7U Withdrawn - After Issue CN203478247U (en) | 2013-08-22 | 2013-08-22 | Biomass gas combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203478247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438456A (en) * | 2013-08-22 | 2013-12-11 | 无锡龙泉燃烧器制造有限公司 | Biomass gas burner |
-
2013
- 2013-08-22 CN CN201320513604.7U patent/CN203478247U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438456A (en) * | 2013-08-22 | 2013-12-11 | 无锡龙泉燃烧器制造有限公司 | Biomass gas burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20150722 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20150722 |
|
| RGAV | Abandon patent right to avoid regrant |