CN219735316U - Integrated, independent forced air distribution and external mixing type gas ignition burner - Google Patents
Integrated, independent forced air distribution and external mixing type gas ignition burner Download PDFInfo
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- CN219735316U CN219735316U CN202320408178.4U CN202320408178U CN219735316U CN 219735316 U CN219735316 U CN 219735316U CN 202320408178 U CN202320408178 U CN 202320408178U CN 219735316 U CN219735316 U CN 219735316U
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- 239000007789 gas Substances 0.000 claims description 96
- 239000002737 fuel gas Substances 0.000 claims description 22
- 238000010304 firing Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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Abstract
The utility model relates to an integrated, independent forced air distribution and external mixing type gas ignition burner, wherein an electrode protection pipe is sleeved outside an ignition electrode; the air inlet seat and the air pipe are sleeved outside the electrode protection pipe from front to back in sequence; the front end of the ignition electrode is connected with the front end of the air inlet seat; the rear end of the device is provided with an ignition tip; the front end of the electrode protection tube is fixed with the front end of the air inlet seat; the rear end of the air inlet seat is connected with the front end of the air pipe; the air inlet seat and the gas pipe are sequentially sleeved outside the air pipe from front to back, and the rear end of the air inlet seat is connected with the front end of the gas pipe; the front end of the air inlet seat is connected with the rear end of the air inlet seat; the air nozzle is arranged at the rear end of the electrode protection tube and sleeved outside the ignition electrode, and a radial air inlet hole and an axial air cyclone launder are arranged on the side wall of the air nozzle; the gas nozzle is arranged at the rear end of the air pipe and sleeved outside the ignition electrode, and a radial gas inlet hole is arranged on the side wall of the gas nozzle; an air inlet is arranged on the side wall of the air inlet seat; an air inlet is arranged on the side wall of the air inlet seat; the front end of the flame tube is connected with the rear end of the gas pipe.
Description
Technical Field
The utility model relates to the technical field of igniters, in particular to an integrated, independent forced air distribution and external mixing type gas ignition burner.
Background
The gas ignition burner has wide application in the field of industrial combustion, is the first step of industrial combustion and is the most critical step. The ignition mode is divided into an internal mixing mode and an external mixing mode according to a mixing mode, the internal mixing mode and the external mixing mode are divided into independent forced air distribution, environment forced air distribution and environment injection air distribution (also called atmospheric injection) according to an air distribution mode, the former gas ignition burner is mainly used for environment forced air distribution or injection air distribution, the environment forced air distribution is used for using combustion air existing in the burner to be air distribution, the environment injection air distribution is used for injecting air in an external environment to enter the ignition burner to be used for combustion air premixing with ignition gas by utilizing the kinetic energy of the ignition gas, the two environment air distribution modes are easily influenced by factors such as environment air pressure, air temperature, wind direction and the like during ignition and after ignition flame is generated, the ignition reliability is not high, flame swing and fluctuation are generated, the shape is neglected, the length is prolonged and shortened, and the ignition success rate is greatly influenced.
Disclosure of Invention
Aiming at the problems, the utility model aims to provide an integrated independent forced air distribution and external mixing type gas ignition burner, which is characterized in that the gas and the air are mixed after being sprayed out of a nozzle outlet, the ignition reliability is high, the shape of the ignition flame is not influenced by the air distribution of the environment, and the ignition is stable.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model relates to an integrated, independent forced air distribution and external mixing type gas ignition burner, which comprises an ignition electrode, an electrode protection tube, an air inlet seat, an air tube, an air inlet seat, a gas tube, a wind nozzle, a gas nozzle and a flame tube, wherein the ignition electrode is arranged on the air inlet seat; the electrode protection tube is sleeved on the outer layer of the ignition electrode; the air inlet seat and the air pipe are sequentially sleeved on the outer layer of the electrode protection pipe from the front end to the rear end; the front end of the ignition electrode is in threaded connection with the front end of the air inlet seat; the rear end of the ignition electrode is provided with an ignition tip which is flush with the outlet section of the gas nozzle; the front end of the electrode protection tube is fixed with the front end of the air inlet seat; the rear end of the air inlet seat is connected with the front end of the air pipe; the air inlet seat and the gas pipe are sequentially sleeved outside the air pipe from front to back, and the rear end of the air inlet seat is connected with the front end of the gas pipe; the front end of the air inlet seat is connected with the rear end of the air inlet seat; the air nozzle is arranged at the rear end of the electrode protection tube and sleeved on the outer layer of the ignition electrode, and a plurality of radial air inlet holes and a plurality of axial air cyclone launders are circumferentially arranged on the side wall of the air nozzle; the gas nozzle is arranged at the rear end of the air pipe and sleeved on the outer layer of the ignition electrode, and a plurality of radial gas inlet holes are circumferentially arranged on the side wall of the gas nozzle; an air inlet is formed in the side wall of the air inlet seat; an air inlet is formed in the side wall of the air inlet seat; the front end of the flame tube is connected with the rear end of the gas pipe.
The integrated, independent forced air distribution and external mixing type gas ignition burner preferably forms an air inlet channel between the air inlet seat and the electrode protection tube, and forms an air distribution flow channel between the air tube and the electrode protection tube, and the air distribution flow channel is communicated with the air inlet channel; an air inlet channel is formed between the air inlet seat and the air pipe, an ignition fuel gas flow channel is formed between the fuel gas pipe and the air pipe, and the ignition fuel gas flow channel is communicated with the air inlet channel.
The integrated, independent forced air distribution, external mixing gas ignition burner preferably has the gas nozzle downstream of the wind nozzle and in communication with the wind nozzle; a central air supply area of the air nozzle is formed between the air nozzle and the ignition electrode, and an air-air mixing area is formed between the gas nozzle and the ignition electrode.
The integrated, independent forced air distribution and external mixing type gas ignition burner preferably forms an electrode protection tube channel between the electrode protection tube and the ignition electrode.
The outlet section of the integrated, independent forced air distribution and external mixing type gas ignition burner is preferably provided with a protrusion extending towards the axis direction.
The integrated, independent forced air distribution and external mixing type gas ignition burner preferably further comprises a bracket, wherein the bracket is sleeved outside the electrode protection tube and is positioned between the air tube and the electrode protection tube.
The integrated, independent forced air distribution and external mixing type gas ignition burner preferably comprises a ring body and a plurality of protruding parts protruding from the ring body, wherein the protruding parts are arranged along the circumferential direction of the ring body.
The integrated, independent forced air distribution and external mixing type gas ignition burner preferably further comprises an ignition gun mounting seat and an external mounting seat, wherein the ignition gun mounting seat is sleeved outside the gas pipe and is fixed with the outer pipe wall of the gas pipe; the external mounting seat is sleeved outside the ignition gun mounting seat, and the external mounting seat and the ignition gun mounting seat are fixed through fastening screws.
The integrated, independent forced air distribution and external mixing type gas ignition burner is characterized in that the outlet end of the flame tube is preferably in a zigzag shape.
The integrated, independent forced air distribution and external mixing type gas ignition burner preferably further comprises a grounding screw, wherein the grounding screw is arranged at the front end of the air inlet seat.
Due to the adoption of the technical scheme, the utility model has the following advantages:
1) Independent forced air distribution is not influenced by factors such as ambient wind pressure, wind temperature, wind direction and the like;
2) External mixing type combustion, wherein the mixing process starts from the gas and air, and tempering is avoided after the gas and air are sprayed out of the gas nozzle outlet;
3) A rotational flow low-speed ignition area is formed outside the gas nozzle, so that ignition is facilitated;
4) The ignition process occurs in the ignition burner, and even if combustion air outside the ignition burner is high-speed air flow, unstable air flow and direction-changing air flow, the ignition success rate cannot be influenced, and the ignition reliability is high;
5) Flame shape and size are stable;
6) The swirler and the zigzag flame tube of the gas nozzle ensure that the flame cannot be removed;
7) The ignition electrode is positioned at the center of the ignition burner, and a protection tube is arranged outside the ignition electrode, so that the maintenance is convenient;
8) The whole size is slender, an ignition electrode, an independent air inlet channel, an independent gas nozzle, a mixed gas nozzle and a flame tube are integrated in one slender pipeline, the requirement on the installation space is low, and the weight is light;
9) Is suitable for high heat value fuel gas and medium heat value fuel gas (low heat value is more than or equal to 2500 kcal/Nm) 3 ) The method is suitable for any positive pressure furnace and negative pressure furnace; the applicable gas pressure is 2.0-20 kPa, and the applicable air distribution pressure is 3.6-15 kPa.
Drawings
FIG. 1 is a schematic diagram of a front view of the present utility model;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a cross-sectional view taken in the direction I-I of FIG. 1;
FIG. 4 is a cross-sectional view taken along the direction II-II of FIG. 1;
FIG. 5 is a cross-sectional view in the direction III-III of FIG. 1;
FIG. 6 is a cross-sectional view in the direction IV-IV of FIG. 1;
figure 7 is a v-v cross-sectional view of figure 1.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the attached drawings, so that the objects, features and advantages of the present utility model will be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the utility model, but rather are merely illustrative of the true spirit of the utility model.
As shown in fig. 1 and 2, the utility model provides an integrated, independent forced air distribution and external mixing type gas ignition burner, which comprises an ignition electrode 1, an electrode protection tube 2, an air inlet seat 3, an air pipe 4, an air inlet seat 5, a gas pipe 6, a wind nozzle 7, a gas nozzle 8 and a flame tube 9, wherein the electrode protection tube 2 is sleeved on the outer layer of the ignition electrode 1; the air inlet seat 3 and the air pipe 4 are sleeved on the outer layer of the electrode protection pipe 2 in sequence from the front end to the rear end; the front end of the ignition electrode 1 is in threaded connection with the front end of the air inlet seat 3; the rear end of the ignition electrode 1 is provided with an ignition tip 28, and the ignition tip 28 is flush with the outlet section of the gas nozzle 8; the front end of the electrode protection tube 2 is fixed with the front end of the air inlet seat 3; the rear end of the air inlet seat 3 is connected with the front end of the air pipe 4; the air inlet seat 5 and the gas pipe 6 are sequentially sleeved outside the air pipe 4 from front to back, and the rear end of the air inlet seat 5 is connected with the front end of the gas pipe 6; the front end of the air inlet seat 5 is connected with the rear end of the air inlet seat 3; the air nozzle 7 is arranged at the rear end of the electrode protection tube 2 and sleeved on the outer layer of the ignition electrode 1, and a plurality of radial air inlet holes 10 (see fig. 4 and 5) and a plurality of axial air cyclone grooves 27 (see fig. 6) are circumferentially arranged on the side wall of the air nozzle 7; the gas nozzle 8 is arranged at the rear end of the air pipe 4 and sleeved on the outer layer of the ignition electrode 1, and a plurality of radial gas inlet holes 11 (see figure 6) are circumferentially arranged on the side wall of the gas nozzle 8; an air inlet 12 is arranged on the side wall of the air inlet seat 3; an air inlet 13 is arranged on the side wall of the air inlet seat 5; the front end of the flame tube 9 is connected with the rear end of the gas pipe 6.
An air inlet channel 14 is formed between the air inlet seat 3 and the electrode protection tube 2, an air distribution channel 15 is formed between the air tube 4 and the electrode protection tube 2, and the air distribution channel 15 is communicated with the air inlet channel 14; an air inlet channel 16 is formed between the air inlet seat 5 and the air pipe 4, an ignition fuel gas flow channel 17 is formed between the fuel gas pipe 6 and the air pipe 4, and the ignition fuel gas flow channel 17 is communicated with the air inlet channel 16. The gas nozzle 8 is located downstream of the wind nozzle 7, and the gas nozzle 8 communicates with the wind nozzle 7; a central air supply area 18 of the air nozzle is formed between the air nozzle 7 and the ignition electrode 1, and an air-air mixing area 19 is formed between the gas nozzle 8 and the ignition electrode 1.
When the air conditioner works, air enters the air inlet channel 14 from the air inlet 12 of the air inlet seat 3, and enters the air distribution channel 15 through the air inlet channel 14; the fuel gas enters the intake passage 16 from the intake port 13 of the intake seat 5, and passes through the intake passage 16 into the ignition fuel gas flow passage 17. The air distribution flow channel extends to the air nozzle 7, and part of air entering the air distribution flow channel 15 radially enters the air nozzle center air supply area 18 in the air nozzle 7 from the air inlet hole 10 and then enters the air-air mixing area 19 in the gas nozzle 8; another portion of the air is directed axially into the air-gas mixing zone 19 within the gas nozzle 8. The fuel gas introduced into the ignition fuel gas flow passage 17 radially enters the air-gas mixing zone 19 in the fuel gas nozzle 8 from the fuel gas intake hole 11 and is mixed with air. The front end of the ignition electrode 1 is connected with an ignition transformer for ignition, the mixed gas is ignited by the tips of the ignition electrode 1 at the outlet section 20 of the gas nozzle, a plurality of the tips of the electrodes 1 are arranged, and ignition flame is sprayed out through the flame tube 9 and is stabilized at the outlet of the flame tube 9.
It should be noted that, air enters the air inlet channel 14 from the air inlet 12 of the air inlet seat 3, passes through the air inlet channel 14 and enters the air distribution channel 15, and the air inlet channel 14 and the air distribution channel 15 are at the axial position. The air enters the air nozzle 7 along the air distribution channel 15 and is divided into two parts, one part of the air radially enters the air supply area 18 in the center of the air nozzle in the air nozzle 7 from a plurality of air inlet holes 10 and then enters the center of the air-air mixing area 19 in the gas nozzle 8, and the other part of the air directly enters the periphery of the air-air mixing area 19 in the gas nozzle 8 from a plurality of axial air cyclone launders 27; the fuel gas enters the air inlet channel 16 from the air inlet 13 of the air inlet seat 5, enters the ignition fuel gas flow channel 17 through the air inlet channel 16, and radially enters the air-gas mixing zone 19 inside the fuel gas nozzle 8 from a plurality of radial fuel gas inlet holes 11 on the fuel gas nozzle 8; downstream of the respective nozzles, the gas and the air in the peripheral portion of the rotation are vertically intersected and mixed in the air-air mixing zone 19, and instantaneously and uniformly mixed in an external mixing manner.
In the above embodiment, it is preferable that the electrode protection tube passage 21 is formed between the electrode protection tube 2 and the ignition electrode 1.
In the above embodiment, it is preferable that the outlet cross section of the gas nozzle is provided with a projection extending in the axial direction.
As shown in fig. 3, the integrated, independent forced air distribution and external mixing type gas ignition burner further comprises a bracket 22, wherein the bracket 22 is sleeved outside the electrode protection tube 2 and is positioned between the air tube 4 and the electrode protection tube 2. The support 22 includes a ring body and a plurality of protruding parts protruding from the ring body, the protruding parts are arranged along the circumferential direction of the ring body, the end parts of the protruding parts are contacted with the inner wall of the spot air tube 4, and the support 8 supports the air tube 4.
In the above embodiment, preferably, the integrated, independent forced air distribution and external mixing type gas ignition burner further comprises an ignition gun mounting seat 23 and an external mounting seat 24, wherein the ignition gun mounting seat 23 is sleeved outside the gas pipe 6 and is fixed with the outer pipe wall of the gas pipe 6; the external mounting seat 24 is sleeved outside the ignition gun mounting seat 23, and the external mounting seat 24 and the ignition gun mounting seat 23 are fixed through fastening screws 25. The external mount 22 is for attachment to a burner that requires ignition.
In the above embodiment, the outlet end of the flame tube is preferably serrated. The serrations enable flame to be stabilized at the outlet end of the cartridge.
In addition, the number of the air inlets 10 arranged along the circumferential direction on the side wall of the wind nozzle 7 is 6-12; the number of the gas inlet holes 11 arranged on the side wall of the gas nozzle 8 along the circumferential direction is 4-10. The ignition electrode 1 is supported inside the electrode protection tube 2 by insulating ceramics with certain interval, and the rear end of the ignition electrode is provided with 8-10 radial tips (see figure 7).
The distance between the protrusion of the outlet of the gas nozzle 8 and the tip of the ignition electrode 1 is 1.5-4.0 mm.
The front end of the air inlet seat 3 is also provided with a grounding screw 26 which is used for forming a discharge loop for the ignition power supply pair.
In addition, if the firing tip 28 at the rear end of the firing electrode 1 is located in front of the outlet section of the gas nozzle 8 or extends beyond the outlet section of the gas nozzle 8, the discharge is hindered by a too large distance, which is disadvantageous for successful firing.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. An integrated, independent forced air distribution and external mixing type gas ignition burner is characterized by comprising an ignition electrode, an electrode protection tube, an air inlet seat, an air tube, an air inlet seat, a gas tube, a wind nozzle, a gas nozzle and a flame tube;
the electrode protection tube is sleeved on the outer layer of the ignition electrode;
the air inlet seat and the air pipe are sequentially sleeved on the outer layer of the electrode protection pipe from the front end to the rear end;
the front end of the ignition electrode is in threaded connection with the front end of the air inlet seat; the rear end of the ignition electrode is provided with an ignition tip which is flush with the outlet section of the gas nozzle;
the front end of the electrode protection tube is fixed with the front end of the air inlet seat; the rear end of the air inlet seat is connected with the front end of the air pipe;
the air inlet seat and the gas pipe are sequentially sleeved outside the air pipe from front to back, and the rear end of the air inlet seat is connected with the front end of the gas pipe; the front end of the air inlet seat is connected with the rear end of the air inlet seat;
the air nozzle is arranged at the rear end of the electrode protection tube and sleeved on the outer layer of the ignition electrode, and a plurality of radial air inlet holes and a plurality of axial air cyclone launders are circumferentially arranged on the side wall of the air nozzle;
the gas nozzle is arranged at the rear end of the air pipe and sleeved on the outer layer of the ignition electrode, and a plurality of radial gas inlet holes are circumferentially arranged on the side wall of the gas nozzle;
an air inlet is formed in the side wall of the air inlet seat; an air inlet is formed in the side wall of the air inlet seat;
the front end of the flame tube is connected with the rear end of the gas pipe.
2. The integrated, independently forced air distribution, external mixing gas ignition burner of claim 1, wherein an air inlet channel is formed between the air inlet seat and the electrode protection tube, an air distribution flow channel is formed between the air tube and the electrode protection tube, and the air distribution flow channel is communicated with the air inlet channel;
an air inlet channel is formed between the air inlet seat and the air pipe, an ignition fuel gas flow channel is formed between the fuel gas pipe and the air pipe, and the ignition fuel gas flow channel is communicated with the air inlet channel.
3. The integrated, self-contained forced air, external mix gas fired burner of claim 1, wherein the gas nozzle is downstream of the wind nozzle and is in communication with the wind nozzle;
a central air supply area of the air nozzle is formed between the air nozzle and the ignition electrode, and an air-air mixing area is formed between the gas nozzle and the ignition electrode.
4. The integrated, independently forced air, external mix gas fired burner of claim 1, wherein an electrode protection tube channel is formed between the electrode protection tube and the firing electrode.
5. The integrated, independently forced air distribution, external mix gas ignition burner of claim 1, wherein the outlet cross section of the gas nozzle is provided with a boss extending in the axial direction.
6. The integrated, independently forced air distribution, external mix gas ignition burner of claim 1, further comprising a bracket that is sleeved outside the electrode protection tube and between the air tube and the electrode protection tube.
7. The integrated, independently forced air distribution, external mix gas ignition burner of claim 6, wherein said bracket comprises a ring body and a plurality of projections projecting from the ring body, said plurality of projections being disposed circumferentially of said ring body.
8. The integrated, independently forced air distribution, external mix gas ignition burner of claim 1, further comprising an ignition gun mount and an external mount, the ignition gun mount being sleeved outside the gas tube and fixed with an outer tube wall of the gas tube; the external mounting seat is sleeved outside the ignition gun mounting seat, and the external mounting seat and the ignition gun mounting seat are fixed through fastening screws.
9. The integrated, independently forced air distribution, external mix gas ignition burner of claim 1, wherein the outlet end of the flame tube is serrated.
10. The integrated, independently forced air distribution, external mix gas ignition burner of claim 1, further comprising a grounding screw disposed at a front end of the air intake seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320408178.4U CN219735316U (en) | 2023-03-07 | 2023-03-07 | Integrated, independent forced air distribution and external mixing type gas ignition burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320408178.4U CN219735316U (en) | 2023-03-07 | 2023-03-07 | Integrated, independent forced air distribution and external mixing type gas ignition burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219735316U true CN219735316U (en) | 2023-09-22 |
Family
ID=88031828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320408178.4U Active CN219735316U (en) | 2023-03-07 | 2023-03-07 | Integrated, independent forced air distribution and external mixing type gas ignition burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219735316U (en) |
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2023
- 2023-03-07 CN CN202320408178.4U patent/CN219735316U/en active Active
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