CN220038460U - Dual-purpose burner for biological fuel gas and natural gas - Google Patents
Dual-purpose burner for biological fuel gas and natural gas Download PDFInfo
- Publication number
- CN220038460U CN220038460U CN202320991145.7U CN202320991145U CN220038460U CN 220038460 U CN220038460 U CN 220038460U CN 202320991145 U CN202320991145 U CN 202320991145U CN 220038460 U CN220038460 U CN 220038460U
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- natural gas
- burner
- pipe
- fixedly connected
- combustion
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 239000003345 natural gas Substances 0.000 title claims abstract description 42
- 239000002737 fuel gas Substances 0.000 title abstract description 8
- 238000002485 combustion reaction Methods 0.000 claims abstract description 38
- 239000007789 gas Substances 0.000 claims abstract description 29
- 230000000087 stabilizing effect Effects 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 6
- 230000035515 penetration Effects 0.000 claims 1
- 238000000889 atomisation Methods 0.000 abstract description 6
- 239000000446 fuel Substances 0.000 abstract description 5
- 239000006227 byproduct Substances 0.000 abstract description 2
- 239000010808 liquid waste Substances 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 239000002028 Biomass Substances 0.000 description 10
- 230000008676 import Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 combustion head 1 Chemical compound 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Combustion Of Fluid Fuel (AREA)
Abstract
The utility model relates to the technical field of combustors, in particular to a biogas and natural gas dual-purpose combustor which comprises a combustion head, wherein a natural gas pipe is fixedly connected to the top of the combustion head, a gas ring is arranged at the downstream inside of the combustion head, natural gas is introduced into the downstream gas ring through the natural gas pipe, and a combustor shell is fixedly connected to one side of the combustion head. The combustion-supporting air of the burner is divided into central direct-current air and peripheral swirl air, the angle of the swirl plate is small (10-45 ℃) so that the resistance of the burner is greatly reduced, the running resistance of the burner is within 1500pa, the staged combustion of fuel is realized through a multi-stage structure of a natural gas nozzle or a biological fuel gas nozzle in the burner, the overall combustion temperature in the furnace is reduced, the thermal NOx can be controlled within 100mg/Nm < 3 >, a small amount of tar in fuel gas is sprayed into the furnace for combustion through a tar atomization oil gun arranged in the burner, and therefore, gasified fuel gas byproducts can be fully burnt without liquid waste residues.
Description
Technical Field
The utility model relates to the technical field of burners, in particular to a biogas and natural gas dual-purpose burner.
Background
Under the guidance of the national "two-carbon" strategy (carbon peak and carbon neutralization), biomass gasification technology is currently and subsequently developed for a long period of time as one of the new energy directions. Besides that a small part of the biogas can be directly connected to the original coal-fired or biomass direct-fired power generation boiler to participate in the coupled combustion, the biogas of most projects needs to be connected to the gas boiler as the only fuel to participate in the combustion. In view of the low calorific value of the biological gas, high tar or pyroligneous content and higher dust content of the gas than other combustible gases, the structural design of the burner of the gas boiler is very important. The traditional biological gas burner often runs unstably due to unstable biological gas flow and pressure, and has insufficient flame rigidity and wafts, so that heat exchange is affected; meanwhile, NOx emission is high and difficult to reach the standard, tar blocks a nozzle or is accumulated near the outlet of the burner, and normal air distribution and combustion are affected.
In addition, the biomass gasification furnace is high in reliability because the biomass gasification furnace is not provided with a traditional boiler, the phenomenon that the gas yield is low or even the gas is not produced temporarily caused by faults is unavoidable, the source of natural gas is wide, and the gas source is generally stable. In order to avoid the uncertainty possibly caused by independently burning the biogas, a dual-purpose burner which can burn the biogas in normal operation and can burn natural gas in emergency is needed in the industry so as to ensure the long-term stable operation of the boiler.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a biogas and natural gas dual-purpose burner.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a dual-purpose combustor of biological gas natural gas, includes the combustion head, the top fixedly connected with natural gas pipe of combustion head, the inside low reaches of combustion head is provided with the gaseous ring, and natural gas lets in the low reaches gaseous ring through the natural gas pipe, one side fixedly connected with combustor casing of combustion head, the top fixedly connected with biological gas pipe of combustor casing, the inside intercommunication of biological gas pipe and combustor casing, the middle part fixedly connected with center tuber pipe of combustor casing, the one end of center tuber pipe runs through the combustor casing and extends to the outside of combustor casing and fixedly connected with tar atomizing spray gun, the inner wall fixedly connected with burning torch of center tuber pipe, the outer wall below of center tuber pipe is provided with the induced air pipe, the one end that the induced air pipe was close to the burning torch is provided with governing valve, fixedly connected with import bellows between combustor head and the combustor casing, the one end that the induced air pipe kept away from the burning torch extends to the inside of import bellows and runs through the below to the import bellows.
Preferably, the outer wall of the combustion head is fixedly connected with a flame stabilizing disc, the outer wall of the flame stabilizing disc is provided with an outer ring I and an inner ring I, the outer ring I and the inner ring I are composed of a plurality of circular nozzles, the outer wall of the flame stabilizing disc is also provided with an outer ring II and an inner ring II, and the outer ring II and the inner ring II are composed of a plurality of kidney-shaped nozzles.
Preferably, a tar discharge pipe is arranged in the burner housing, a tar discharge port is formed in the outer wall of the burner housing, and the tar discharge pipe penetrates through the burner housing and is communicated with the tar discharge port.
Preferably, the side wall of the burner shell is fixedly connected with a fire detection port and a fire observation port respectively.
Preferably, an inclination angle is arranged between the outer ring I and the outer ring II, and the inclination angle is 0-45 degrees.
Preferably, a damper is arranged below the inlet bellows.
The beneficial effects of the utility model are as follows:
the combustion-supporting air of the burner is divided into central direct-current air and peripheral swirl air, the angle of the swirl plate is small (10-45 ℃) so that the resistance of the burner is greatly reduced, the running resistance of the burner is within 1500pa, the staged combustion of fuel is realized through a multi-stage structure of a natural gas nozzle or a biological fuel gas nozzle in the burner, the overall combustion temperature in the furnace is reduced, the thermal NOx can be controlled within 100mg/Nm < 3 >, a small amount of tar in fuel gas is sprayed into the furnace for combustion through a tar atomization oil gun arranged in the burner, and therefore, gasified fuel gas byproducts can be fully burnt without liquid waste residues.
One path of the combustion air is led out from the central air pipe by the burner as central combustion air so as to realize the classification of the combustion air, and a small amount of accumulated tar in the burner after long-term operation can pass through a tar discharge port on the lower side of the burner so as to be discharged in time when the burner is overhauled or under special working conditions.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a dual-purpose biogas/natural gas burner according to the present utility model;
fig. 2 is a schematic diagram of a rear view structure of the dual-purpose burner for biogas and natural gas according to the present utility model;
FIG. 3 is a schematic side view of the dual-purpose burner for biogas and natural gas according to the present utility model;
FIG. 4 is a schematic diagram of the structure of a flame stabilizing plate of the biogas and natural gas dual-purpose burner;
FIG. 5 is a schematic diagram of the connection structure of a tar atomization spray gun and an ignition gun of the biogas and natural gas dual-purpose burner provided by the utility model;
fig. 6 is a schematic cross-sectional structure of the dual-purpose burner for biogas and natural gas according to the present utility model.
In the figure:
1. a combustion head; 2. a natural gas pipe; 3. a biomass gas pipe; 4. a central air duct; 5. a tar atomization spray gun; 6. igniting the gun; 7. adjusting a valve; 8. an air guiding pipe; 9. an inlet bellows; 10. a flame stabilizing disc; 11. an outer ring I; 12. an inner ring I; 13. an outer ring II; 14. an inner ring II; 15. a burner housing; 16. a tar discharge port; 17. a tar discharge pipe; 18. fire detection; 19. a fire viewing port; 20. and (5) adjusting the air door.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
What is not described in detail in this specification is prior art known to those skilled in the art.
Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.
Examples:
referring to fig. 1-6, the dual-purpose combustor of bio-gas natural gas, including combustion head 1, the top fixedly connected with natural gas pipe 2 of combustion head 1, the inside low reaches of combustion head 1 are provided with the gaseous ring, natural gas lets in the low reaches gaseous ring through natural gas pipe 2, one side fixedly connected with combustor casing 15 of combustion head 1, the top fixedly connected with bio-gas pipe 3 of combustor casing 15, bio-gas pipe 3 communicates with the inside of combustor casing 15, the middle part fixedly connected with center tuber pipe 4 of combustor casing 15, the one end of center tuber pipe 4 runs through combustor casing 15 and extends to the outside of combustor casing 15 and fixedly connected with tar atomizing spray gun 5, the inner wall fixedly connected with ignition gun 6 of center tuber pipe 4, the outer wall below of center tuber pipe 4 is provided with induced air pipe 8, the one end that induced air pipe 8 is close to ignition gun 6 is provided with adjusting valve 7, fixedly connected with import bellows 9 between combustor head 1 and the combustor casing 15, the one end that induced air pipe 8 kept away from ignition gun 6 extends to import bellows 9 and runs through to the below import bellows 9.
The outer wall of the combustion head 1 is fixedly connected with a flame stabilizing disc 10, the outer wall of the flame stabilizing disc 10 is provided with an outer ring I11 and an inner ring I12, the outer ring I11 and the inner ring I12 are composed of a plurality of circular nozzles, the outer wall of the flame stabilizing disc 10 is also provided with an outer ring II 13 and an inner ring II 14, and the outer ring II 13 and the inner ring II 14 are composed of a plurality of kidney-shaped nozzles.
The inside of the burner housing 15 is provided with a tar discharge pipe 17, the outer wall of the burner housing 15 is provided with a tar discharge port 16, and the tar discharge pipe 17 penetrates the burner housing 15 and is communicated with the tar discharge port 16.
The side wall of the burner housing 15 is fixedly connected with a fire detector 18 and a fire observation port 19 respectively.
The outer ring I11 and the outer ring II 13 are provided with an inclination angle to the outer side, and the inclination angle of the inclination angle is 0-45 degrees.
An adjusting tuyere 20 is arranged below the inlet bellows 9.
In the embodiment, when the dual-purpose biomass gas burner is used, the dual-purpose biomass gas burner is arranged on a mounting hole of a boiler through a combustion head 1, natural gas is then introduced into a gas ring at the downstream of the combustion head 1 through a natural gas pipe 2, the biomass gas is communicated with a burner shell 15 through a biomass gas pipe 3, at this time, the natural gas or the biomass gas can be ignited through an ignition gun 6 (the ignition gas used by the ignition gun 6 is natural gas or liquefied petroleum gas), the combustion-supporting total air quantity of combustion can be realized through a damper on an inlet bellows 9, a small amount of tar can be accumulated in the burner after the burner is operated for a long time, at this time, the small amount of accumulated tar can be discharged to a tar discharge hole 16 through a tar discharge pipe 17, or finally atomized and combusted through a tar atomization spray gun 5 through a central air pipe 4, and an atomization medium adopts compressed air or superheated steam generated by the boiler;
when natural gas or biogas is ignited, combustion-supporting swirl air is sent to the front part of the burner through the flame stabilizing disc 10, natural gas is sent to the front part of the burner in a grading way through a plurality of small nozzles arranged on the outer ring I11 and the inner ring I12, wherein the inclination angle of the outer side of the nozzle through the outer ring I11 is 0-45 degrees, so that the grading combustion of fuel can be realized to the maximum extent, meanwhile, biogas is sent to the front part of the burner in a grading way through a plurality of nozzles arranged on the outer ring II 13 and the inner ring II 14, the inclination angle of the outer side of the nozzle through the outer ring II 13 is 0-45 degrees, the grading combustion of fuel can be realized, the low emission of NOx is fully ensured, the running resistance is furthest reduced, the flame in a furnace can be used for watching flame in the furnace through the flame viewing port 19, the combustion condition in the furnace can be judged, the combustion flame in the furnace can be detected and monitored through the flame detection 18, and the safe running of the boiler can be timely prevented when the boiler ignites, the low-load running or abnormal working condition exists.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides a dual-purpose combustor of biological gas natural gas, includes combustion head (1), its characterized in that, the top fixedly connected with natural gas pipe (2) of combustion head (1), the inside low reaches of combustion head (1) are provided with the gaseous ring, and natural gas lets in the low reaches gaseous ring through natural gas pipe (2), one side fixedly connected with combustor casing (15) of combustion head (1), the top fixedly connected with biological gas pipe (3) of combustor casing (15), the inside intercommunication of biological gas pipe (3) and combustor casing (15), the middle part fixedly connected with center tuber pipe (4) of combustor casing (15), the outside and fixedly connected with tar atomizing spray gun (5) of one end penetration combustor casing (15) and extension to combustor casing (15), the inner wall fixedly connected with ignition gun (6) of center tuber pipe (4), the outer wall below of center tuber pipe (4) is provided with induced air pipe (8), the induced air pipe (8) are close to combustor casing (1) and are provided with combustor casing (9) of combustor casing (1) and are connected with between the inlet (9), one end of the air guiding pipe (8) far away from the ignition gun (6) extends to the inside of the inlet bellows (9) and penetrates to the lower part of the inlet bellows (9).
2. The biogas and natural gas dual-purpose burner according to claim 1, wherein the outer wall of the burner head (1) is fixedly connected with a flame stabilizing disc (10), the outer wall of the flame stabilizing disc (10) is provided with an outer ring I (11) and an inner ring I (12), the outer ring I (11) and the inner ring I (12) are composed of a plurality of circular nozzles, the outer wall of the flame stabilizing disc (10) is also provided with an outer ring II (13) and an inner ring II (14), and the outer ring II (13) and the inner ring II (14) are composed of a plurality of kidney-shaped nozzles.
3. The biogas and natural gas dual-purpose burner according to claim 1, wherein a tar discharge pipe (17) is arranged in the burner housing (15), a tar discharge port (16) is formed in the outer wall of the burner housing (15), and the tar discharge pipe (17) penetrates through the burner housing (15) and is communicated with the tar discharge port (16).
4. The biogas and natural gas dual-purpose burner according to claim 1, wherein a fire detector (18) and a fire observation port (19) are fixedly connected to the side wall of the burner housing (15) respectively.
5. The biogas and natural gas dual-purpose burner according to claim 2, wherein the outer ring one (11) and the outer ring two (13) are provided with an inclination angle towards the outer side, and the inclination angle is 0-45 °.
6. The biogas and natural gas dual-purpose burner according to claim 1, characterized in that a damper (20) is arranged below the inlet bellows (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320991145.7U CN220038460U (en) | 2023-04-27 | 2023-04-27 | Dual-purpose burner for biological fuel gas and natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320991145.7U CN220038460U (en) | 2023-04-27 | 2023-04-27 | Dual-purpose burner for biological fuel gas and natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220038460U true CN220038460U (en) | 2023-11-17 |
Family
ID=88723937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320991145.7U Active CN220038460U (en) | 2023-04-27 | 2023-04-27 | Dual-purpose burner for biological fuel gas and natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220038460U (en) |
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2023
- 2023-04-27 CN CN202320991145.7U patent/CN220038460U/en active Active
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