CN220152729U - Gradually-expanding injection burner - Google Patents
Gradually-expanding injection burner Download PDFInfo
- Publication number
- CN220152729U CN220152729U CN202321495750.1U CN202321495750U CN220152729U CN 220152729 U CN220152729 U CN 220152729U CN 202321495750 U CN202321495750 U CN 202321495750U CN 220152729 U CN220152729 U CN 220152729U
- Authority
- CN
- China
- Prior art keywords
- gas
- annular sleeve
- fixedly connected
- connecting pipe
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000002347 injection Methods 0.000 title claims abstract description 11
- 239000007924 injection Substances 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims description 94
- 239000002737 fuel gas Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000002803 fossil fuel Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000007921 spray Substances 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model discloses a divergent injection burner which comprises an airflow pipeline, wherein the airflow pipeline is provided with an air inlet, a plurality of gas branch pipes are fixedly connected in the airflow pipeline, the gas branch pipes extend out of the airflow pipeline, a gas main pipe is communicated with the gas branch pipes, one end of each gas branch pipe, which is far away from the gas main pipe, is fixedly connected with a connecting pipe, a first sealing plate is fixedly connected between two adjacent gas branch pipes and between two adjacent connecting pipes, the first sealing plate and the connecting pipe enclose a conical channel, one end, which is far away from the gas branch pipes, of the connecting pipe and the first sealing plate is fixedly connected with an annular sleeve, the side wall of the annular sleeve is provided with a gas channel, the connecting pipe is communicated with the gas channel, one side, which is far away from the connecting pipe, of the annular sleeve is fixedly connected with a cyclone, and an ignition device is arranged on the cyclone. According to the utility model, the flow velocity of air is reduced through the cyclone, the uniformity of mixing of the air and the combustible gas is improved, and the combustion of the combustible gas is facilitated.
Description
Technical Field
The utility model relates to the technical field of combustors, in particular to a divergent injection combustor.
Background
Along with the rapid development of economy, the energy demand becomes larger and larger, and fossil fuels are still the main energy sources used worldwide at present, but the environmental problems brought by the fossil fuels are increasingly severe, so that more and more clean energy sources are widely applied, and natural gas and hydrogen are used as important clean energy sources, and the fossil fuels have the characteristics of green, low carbon, cleanness and the like. The burner which is necessary for the gas boiler plays a vital role in reducing the generation of pollutants, but the problems of uneven mixing of the large gas in the premixing chamber volume, high flame temperature in the combustion process, high emission of nitrogen oxides and the like of the conventional burner are generally solved, and the gradually-expanding injection burner is provided for solving the problems.
Disclosure of Invention
The utility model aims to provide a divergent injection burner, which solves the problems in the prior art, ensures that premixed gases are uniformly mixed, reduces the temperature of flame and reduces the generation of nitrogen oxides.
In order to achieve the above object, the present utility model provides the following solutions: the utility model provides a divergent injection burner, comprising:
the gas flow pipeline is provided with an air inlet, a plurality of gas branch pipes are fixedly connected in the gas flow pipeline, the gas branch pipes extend out of the gas flow pipeline, the gas branch pipes are communicated with a gas main pipe, the gas main pipe is positioned outside the gas flow channel, the gas branch pipes are far away from a connecting pipe fixedly connected with one end of the gas main pipe, two adjacent gas branch pipes and two adjacent gas branch pipes are respectively fixedly connected with a first sealing plate, the first sealing plates and the connecting pipe enclose into a conical channel, the connecting pipe and the first sealing plates are far away from an annular sleeve fixedly connected with one end of the gas branch pipes, a gas channel is arranged on the side wall of the annular sleeve, the gas channel is provided with a gas outlet, the gas outlet is in a flat nozzle shape, the connecting pipe is communicated with the gas channel, a cyclone is fixedly connected with one side of the connecting pipe in the annular sleeve, and an ignition device is arranged on the cyclone.
Preferably, the annular sleeve comprises an annular sleeve inner wall and an annular sleeve outer wall, a plurality of clapboards are fixedly connected between the annular sleeve inner wall and the annular sleeve outer wall, a cavity between the annular sleeve inner wall and the annular sleeve outer wall is a fuel gas channel, and the cyclone is fixedly connected in the annular sleeve inner wall.
Preferably, a second sealing plate is fixedly connected between the outer wall of the annular sleeve and the airflow pipeline.
The utility model discloses the following technical effects: in this device, air enters into the air current pipeline through the air inlet to pass through from the hole that gas is in charge of and first sealing plate encloses, the velocity of flow reduces behind the toper passageway that air admission connecting pipe and first sealing plate enclose, and the air reentrant annular sleeve sprays into furnace behind the swirler, and combustible gas enters into gas from the gas house steward and is in charge of, and the gas passageway is in charge of through the connecting pipe again, and finally combustible gas is from gas outlet blowout, fires the back burning through ignition device. According to the utility model, the flow velocity of air is reduced through the cyclone, the uniformity of mixing of the air and the combustible gas is improved, and the combustion of the combustible gas is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a divergent injection burner of the present utility model;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
1, an air inlet; 2. a fuel gas branch pipe; 3. an annular sleeve; 4. a gas main pipe; 5. a second sealing plate; 6. a gas outlet; 7. a cyclone; 8. a partition plate; 9. a first sealing plate; 10. an annular sleeve inner wall; 11. an annular sleeve outer wall; 12. an ignition device; 13. an air flow duct; 14. and (5) connecting pipes.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1-2, the present utility model provides a divergent injection burner comprising:
the gas flow pipeline 13, the gas flow pipeline 13 has air inlet 1, fixedly connected with a plurality of gas in the gas flow pipeline 13 is divided into pipe 2, gas is divided into pipe 2 and stretches out gas flow pipeline 13, gas is divided into pipe 2 intercommunication and is had gas house steward 4, gas house steward 4 is located the air current passageway outside, gas is divided into pipe 2 and is kept away from gas house steward 4 one end fixedly connected with connecting pipe 14, all fixedly connected with first closing plate 9 between the two adjacent gas are divided into pipe 2 and between the two adjacent connecting pipe 14, first closing plate 9 and connecting pipe 14 enclose into the toper passageway, connecting pipe 14 and first closing plate 9 keep away from gas and divide pipe 2 one end fixedly connected with annular sleeve 3, be provided with the gas passageway on the annular sleeve 3 lateral wall, the gas passageway has gas export 6, gas export 6 is the flat mouth formula, connecting pipe 14 and gas passageway intercommunication, keep away from connecting pipe one side fixedly connected with swirler 7 in the annular sleeve 3, install ignition device 12 on the swirler 7.
Air enters into an air flow pipeline 13 through an air inlet 1, a first sealing plate 9 is fixedly connected between two adjacent gas branch pipes 2, so that the air can only pass through holes surrounded by the gas branch pipes 2 and the first sealing plate 9, a conical passage surrounded by a connecting pipe 14 and the first sealing plate 9, one smaller end of the conical passage is fixedly connected with the gas branch pipes 2, when the air enters into the conical passage, the air flow rate is reduced, the pressure is increased, the air enters into an annular sleeve 3 again, the air is sprayed into a hearth after passing through a cyclone 7, the combustible gas enters into the gas branch pipes 2 from a gas main pipe 4 and then enters into the gas passage through the connecting pipe 14, and finally the combustible gas is sprayed out from a gas outlet 6 and is ignited by an ignition device 12 to burn.
Further optimizing scheme, annular sleeve 3 includes annular sleeve inner wall 10 and annular sleeve outer wall 11, fixedly connected with a plurality of baffles 8 between annular sleeve inner wall 10 and the annular sleeve outer wall 11, and the cavity between annular sleeve inner wall 10 and the annular sleeve outer wall 11 is the gas passageway, and swirler 7 fixed connection is in annular sleeve inner wall 10.
The partition 8 serves to divide the gas passage into a plurality of independent passages through which the combustible gas passes between the annular sleeve inner wall 10 and the annular sleeve outer wall 11.
In a further optimized scheme, a second sealing plate 5 is fixedly connected between the outer wall 11 of the annular sleeve and the airflow pipeline 13.
The second sealing plate 5 seals between the annular sleeve outer wall 11 and the gas flow duct 13 against gas leakage.
According to the working principle of the device, air enters an air flow pipeline 13 from an air inlet 1 and passes through a hole formed by surrounding a fuel gas branch pipe 2 and a first sealing plate 9, and enters a conical channel formed by surrounding a connecting pipe 14 and the first sealing plate 9, when the air enters the conical channel, the air flow speed is reduced, the pressure is increased, the air enters an annular sleeve 3 again, is sprayed into a hearth after passing through a cyclone 7, combustible gas enters the fuel gas branch pipe 2 from a fuel gas main pipe 4 and then enters a fuel gas channel between an annular sleeve inner wall 10 and an annular sleeve outer wall 11 through the connecting pipe 14, finally the combustible gas is sprayed out from a fuel gas outlet 6, and the air and the combustible gas form a low-pressure area in the hearth.
The device has the advantages that:
1. the design of swirler 7 plays the effect of flow equalizing, also can reduce the velocity of flow of air, improves the miscibility of air and gas, can form inside flue gas backward flow district in furnace after premixed gas passes through simultaneously, and the high temperature flue gas of backward flow helps keeping the required energy of ignition, improves the stability of flame, and on the other hand backward flow flue gas has diluted the gas concentration, reduces the gas calorific value, reduces furnace's temperature, and then reduces the formation of nitrogen oxide.
2. The connecting pipe 14 and the first sealing plate 9 form a gradually expanding structure, the flow speed of air is reduced after the air passes through, and the pressure is increased.
3. The gas main pipe 4 and the gas branch pipes 2 are arranged in a ring shape, so that the gas distribution can be more uniform.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (3)
1. A divergent jet burner comprising:
the gas flow pipeline (13), gas flow pipeline (13) have air inlet (1), fixedly connected with a plurality of gas in gas flow pipeline (13) are in charge of (2), gas is in charge of (2) and stretches out gas flow pipeline (13), gas is in charge of (2) intercommunication has gas house steward (4), gas house steward (4) are located gas flow pipeline (13) outside, gas is in charge of (2) keep away from gas house steward (4) one end fixedly connected with connecting pipe (14), two are adjacent between gas is in charge of (2) and two are adjacent all fixedly connected with first closing plate (9) between connecting pipe (14), first closing plate (9) with conical channel is enclosed to connecting pipe (14), connecting pipe (14) with first closing plate (9) are kept away from gas is in charge of (2) one end fixedly connected with annular sleeve (3), be provided with gas passageway on the annular sleeve (3) lateral wall, gas passageway has gas export (6), gas export (6) are flat mouth type, gas vent (6) and two are adjacent between connecting pipe (14) all fixedly connected with first closing plate (9) and connecting pipe (7) enclose into conical channel.
2. A diverging injection burner as claimed in claim 1, wherein: the annular sleeve (3) comprises an annular sleeve inner wall (10) and an annular sleeve outer wall (11), a plurality of partition plates (8) are fixedly connected between the annular sleeve inner wall (10) and the annular sleeve outer wall (11), a cavity between the annular sleeve inner wall (10) and the annular sleeve outer wall (11) is a fuel gas channel, and the cyclone (7) is fixedly connected in the annular sleeve inner wall (10).
3. A diverging injection burner as claimed in claim 2, wherein: a second sealing plate (5) is fixedly connected between the outer wall (11) of the annular sleeve and the airflow pipeline (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321495750.1U CN220152729U (en) | 2023-06-13 | 2023-06-13 | Gradually-expanding injection burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321495750.1U CN220152729U (en) | 2023-06-13 | 2023-06-13 | Gradually-expanding injection burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220152729U true CN220152729U (en) | 2023-12-08 |
Family
ID=89012597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321495750.1U Active CN220152729U (en) | 2023-06-13 | 2023-06-13 | Gradually-expanding injection burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220152729U (en) |
-
2023
- 2023-06-13 CN CN202321495750.1U patent/CN220152729U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |