CN210532361U - Self-mixing low NOx gas burner - Google Patents
Self-mixing low NOx gas burner Download PDFInfo
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- CN210532361U CN210532361U CN201920717524.0U CN201920717524U CN210532361U CN 210532361 U CN210532361 U CN 210532361U CN 201920717524 U CN201920717524 U CN 201920717524U CN 210532361 U CN210532361 U CN 210532361U
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Abstract
The utility model relates to a from mixing low NOx gas burner, include from mixing the gas rifle, include a pipeline from mixing the gas rifle, the pipeline overcoat is equipped with the combustor body, the pipeline runs through the combustor body, the pipeline is located this internal one end of firebrick and is equipped with the shower nozzle, the pipeline other end is equipped with fuel gas entry subassembly, the shower nozzle includes the first panel and the second panel that size equals, first panel and second panel correspond the position and are provided with a plurality of hole, be equipped with the whirl nozzle between the hole that first panel and second panel correspond the position, be equipped with the whirl orifice of a plurality of radial arrangement on the whirl nozzle. The utility model has the advantages that: the structure connection is simple and convenient, the sealing process is simple and reliable, simultaneously, fuels with different pressures are processed, low NOx emission combustion is considered, the manufacturing and mounting process is scientific and simple, the design of the fuel mixing tank is simplified, the low NOx emission combustion is realized, and the sealing device has certain social value.
Description
Technical Field
The utility model relates to a fuel heating device particularly, relates to a from mixing low NOx gas burner.
Background
In various industries such as petrochemical industry, industrial kilns, industrial and civil boilers and the like, the fuel conditions of combustion systems are different, most petrochemical devices are provided with self-produced gas, the fuel pressure is high or low, the consideration is in various aspects such as social benefits, economic benefits and the like, and the market urgently needs a gas burner which can simultaneously process 2 or more fuels with different pressure conditions.
At present, in the design of taking similar self-produced gas as supplementary fuel at home and abroad, a mode of arranging a high-pressure and low-pressure mixing tank is generally adopted for solving the problem, so that a proprietor is required to provide a special site and equipment for the purpose, and the consumption of capital and resources is greatly increased.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
To the above technical problem in the related art, the present invention provides a self-mixing low NOx gas burner, which overcomes the above disadvantages of the existing products.
The utility model aims at realizing through the following technical scheme: a self-mixing low NOx gas burner comprises a self-mixing gas gun body, wherein the self-mixing gas gun body comprises a pipeline, a burner body is sleeved outside the pipeline, the pipeline penetrates through the burner body, the lower part of the burner body is communicated with a fire basin brick body, the burner body comprises a burner shell, an air inlet is formed in one side face of the burner shell, a heat insulator is arranged in the burner shell, one end of the pipeline is positioned in the fire basin brick body, a nozzle is arranged at one end of the pipeline positioned in the fire basin brick body, a fuel gas inlet assembly is arranged at the other end of the pipeline, the nozzle comprises a first panel and a second panel which are equal in size, the edges of the first panel and the second panel are connected through a surrounding frame, the second panel is connected with the pipeline, and a plurality of holes are formed in the corresponding positions of the first panel and the second panel, and a swirl nozzle is arranged between the holes at the corresponding positions of the first panel and the second panel, a plurality of swirl spray holes which are radially arranged are arranged on the swirl nozzle, and included angles exist between the swirl spray holes in the axial direction and the radial direction.
Furthermore, the fire pan brick body is built by the brick body, fire pan brick body upper portion is equipped with the screw rod, combustor body lower part is equipped with the fixing base, the fixing base passes through the nut to be fixed on the screw rod.
Further, the fuel gas inlet assembly comprises a trapezoid pipe, one end of the trapezoid pipe is communicated with the pipeline, the other end of the trapezoid pipe is communicated with one end of the bent pipe, and a first fuel gas inlet is formed in the other end of the bent pipe.
Further, the second panels are connected to the pipes by connecting pipes.
Furthermore, the elbow is communicated with a second fuel gas inlet through a sleeve, and the second fuel gas inlet is parallel to the pipeline.
Furthermore, the holes are arranged in a plurality of concentric circular rings.
The utility model has the advantages that: the structure connection is simple and convenient, the sealing process is simple and reliable, simultaneously, fuels with different pressures are processed, low NOx emission combustion is considered, the manufacturing and mounting process is scientific and simple, the design of the fuel mixing tank is simplified, the low NOx emission combustion is realized, and the sealing device has certain social value.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a self-mixing low NOx gas burner according to an embodiment of the present invention;
fig. 2 is a front view of a burner body according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a burner body according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a self-mixing gas gun according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a spray head according to an embodiment of the present invention;
fig. 6 is a top view of a showerhead according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a fire pan brick body according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a fire pan brick body according to an embodiment of the present invention;
FIG. 9 is a front view of a swozzle according to an embodiment of the present invention;
FIG. 10 is a top view of a swozzle according to an embodiment of the present invention;
FIG. 11 is a schematic structural view of a swozzle according to an embodiment of the present invention;
Detailed Description
As shown in fig. 1-11, a self-mixing low NOx gas burner according to an embodiment of the present invention includes a self-mixing gas gun 3, the self-mixing gas gun 3 includes a pipe 3-7, a burner body 2 is provided outside the pipe 3-7, the pipe 3-7 penetrates the burner body 2, the lower portion of the burner body 2 is communicated with a fire pan brick body 1, the burner body 2 includes a burner housing 2-2, an air inlet 2-1 is provided on a side surface of the burner housing 2-2, a heat insulator 2-3 is provided in the burner housing 2-2, one end of the pipe 3-7 is located in the fire pan brick body 1, a nozzle 3-5 is provided at one end of the pipe 3-7 located in the fire pan brick body 1, a fuel gas inlet assembly is provided at the other end of the pipe 3-7, the spray head 3-5 comprises a first panel 3-5-1 and a second panel 3-5-2 which are equal in size, the edges of the first panel 3-5-1 and the second panel 3-5-2 are connected through a surrounding frame 3-5-3, the second panel 3-5-2 is connected with the pipeline 3-7, a plurality of holes are arranged at the positions corresponding to the first panel 3-5-1 and the second panel 3-5-2, a swirl nozzle 3-5-4 is arranged between the holes at the positions corresponding to the first panel 3-5-1 and the second panel 3-5-2, a plurality of swirl spray holes 3-5-4-1 which are radially arranged are arranged on the swirl nozzle 3-5-4, the rotational flow spray holes 3-5-4-1 form included angles in the axial direction and the radial direction.
In a specific embodiment, the fire basin brick body 1 is formed by building brick bodies 1-1, a screw rod 1-2 is arranged at the upper part of the fire basin brick body 1, a fixed seat 2-4 is arranged at the lower part of the burner body 2, and the fixed seat 2-4 is fixed on the screw rod 1-2 through a nut.
In a specific embodiment, the fuel gas inlet assembly comprises a trapezoidal pipe 3-4, one end of the trapezoidal pipe 3-4 is communicated with the pipeline 3-7, the other end of the trapezoidal pipe 3-4 is communicated with one end of an elbow pipe 3-3, and the other end of the elbow pipe 3-3 is provided with a first fuel gas inlet 3-8.
In a specific embodiment, the elbow 3-3 is connected to a second fuel gas inlet 3-1 through a sleeve 3-2, and the second fuel gas inlet 3-1 is parallel to the pipe 3-7.
In a specific embodiment, the second panel 3-5-2 is connected to the duct 3-7 by a connecting tube 3-5-5.
In one embodiment, the holes are arranged in a plurality of concentric rings.
When specifically using, according to a from mixing low NOx gas burner, low pressure fuel gas is from mixing 3 cavities of gas rifle through first fuel gas entry 3-8 in, the shower nozzle 3-5 through lotus type structure in the gas rifle front end realizes premixing with combustion-supporting air, utilize the characteristic of premixing flame to realize stable burning, high pressure fuel gas gets into from mixing 3 cavities of gas rifle through second fuel gas entry 3-1 in, return bend 3-3 is connected for the hot melt with sleeve pipe 3-2, second fuel gas inlet tube adopts threaded connection with sleeve pipe 3-2, return bend 3-3 keeps concentric with trapezoidal pipe 3-4 for high pressure fuel gas can expand rapidly and the decompression after going out the spout, realize premixing with combustion-supporting air with low pressure fuel gas is the same.
The nozzle 3-5 is in a shower shape and consists of a first panel 3-5-1, a second panel 3-5-2, a surrounding frame 3-5-3, a swirl nozzle 3-5-4 and a connecting pipe 3-5-5, wherein the swirl nozzle 3-5-4 is in riveted sealing connection with the first panel 3-5-1 and the second panel 3-5-2, the swirl nozzle 3-5-4 is in 3 concentric circular ring arrays and is in the shower shape, the amount of generated premixed flame is relatively increased, the temperature of a high-temperature zone of the flame is more balanced, the generation of temperature type NOx can be effectively reduced, and low NOx emission combustion is realized.
The swirl nozzle 3-5-4 is provided with 8 swirl spray holes 3-5-4-1 which are radially arranged, the swirl spray holes 3-5-4-1 form a swirl at an included angle of 60 degrees in the axial direction and an included angle of 30 degrees in the radial direction, the sprayed fuel gas generates a swirl, the fuel gas and combustion air are fully mixed, the ignition is easy, and the formed flame is short and thick.
Through the nozzles 3-5 of the shared shower-shaped structure, the high-pressure fuel gas and the low-pressure fuel gas can be combusted independently or can be combusted jointly, so that the self-mixing combustion of the fuels with different pressures is realized, the problem that the fuel gases with two different pressures need to be subjected to pressure balance treatment under the common condition is solved, meanwhile, a fuel mixing tank designed for solving the problem in the common process design can be saved, and the direct investment is saved.
To sum up, with the help of the technical scheme of the utility model, the dual fuel entry of adoption realizes the self-mixing design of different pressure fuel for can expand rapidly and decompress after high-pressure fuel goes out the spout. Through the shower nozzle of sharing lotus column structure, high pressure fuel gas and low pressure fuel gas can the independent combustion, also can the two jointly burn, have solved the problem that needs carry out pressure balance to the fuel gas of two kinds of different pressures under the general condition and handle, can save the fuel blending tank who designs for solving this type of problem in the general process design simultaneously, can practice thrift the investment of equipment.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides a low NOx gas burner of self-mixing which characterized in that: comprises a self-mixing gas gun (3), the self-mixing gas gun (3) comprises a pipeline (3-7), the outer sleeve of the pipeline (3-7) is provided with a burner body (2), the pipeline (3-7) runs through the burner body (2), the lower part of the burner body (2) is communicated with a fire basin brick body (1), the burner body (2) comprises a burner shell (2-2), one side surface of the burner shell (2-2) is provided with an air inlet (2-1), the burner shell (2-2) is internally provided with a heat insulator (2-3), one end of the pipeline (3-7) is positioned in the fire basin brick body (1), one end of the pipeline (3-7) positioned in the fire basin brick body (1) is provided with a spray head (3-5), the other end of the pipeline (3-7) is provided with a fuel gas inlet assembly, the spray head (3-5) comprises a first panel (3-5-1) and a second panel (3-5-2) which are equal in size, the edges of the first panel (3-5-1) and the second panel (3-5-2) are connected through a surrounding frame (3-5-3), the second panel (3-5-2) is connected with the pipeline (3-7), a plurality of holes are formed in the positions, corresponding to the first panel (3-5-1) and the second panel (3-5-2), of the first panel (3-5-1) and the second panel (3-5-2), and swirl nozzles (3-5-4) are arranged between the holes in the positions, corresponding to the first panel (3-5-1) and the second panel (3-5-2), the swirl nozzle (3-5-4) is provided with a plurality of swirl spray holes (3-5-4-1) which are radially arranged, and the swirl spray holes (3-5-4-1) have included angles in the axial direction and the radial direction.
2. A self-mixing low NOx gas burner according to claim 1, characterized in that: the fire basin brick body (1) is formed by piling up brick bodies (1-1), a screw rod (1-2) is arranged at the upper part of the fire basin brick body (1), a fixing seat (2-4) is arranged at the lower part of the burner body (2), and the fixing seat (2-4) is fixed on the screw rod (1-2) through a nut.
3. A self-mixing low NOx gas burner according to claim 1, characterized in that: the fuel gas inlet assembly comprises a trapezoid pipe (3-4), one end of the trapezoid pipe (3-4) is communicated with the pipeline (3-7), the other end of the trapezoid pipe (3-4) is communicated with one end of the bent pipe (3-3), and the other end of the bent pipe (3-3) is provided with a first fuel gas inlet (3-8).
4. A self-mixing low NOx gas burner according to claim 3, characterized in that: the elbow (3-3) is communicated with a second fuel gas inlet (3-1) through a sleeve (3-2), and the second fuel gas inlet (3-1) is parallel to the pipeline (3-7).
5. A self-mixing low NOx gas burner according to claim 1, characterized in that: the second panel (3-5-2) is connected with the pipeline (3-7) through a connecting pipe (3-5-5).
6. A self-mixing low NOx gas burner according to claim 1, characterized in that: the holes are arranged in a plurality of concentric circular rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920717524.0U CN210532361U (en) | 2019-05-20 | 2019-05-20 | Self-mixing low NOx gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920717524.0U CN210532361U (en) | 2019-05-20 | 2019-05-20 | Self-mixing low NOx gas burner |
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| Publication Number | Publication Date |
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| CN210532361U true CN210532361U (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920717524.0U Active CN210532361U (en) | 2019-05-20 | 2019-05-20 | Self-mixing low NOx gas burner |
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| CN (1) | CN210532361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023035049A1 (en) * | 2021-09-09 | 2023-03-16 | Fct Holdings Pty Ltd | Combustion system with ultralow nox emission and quick fuel mixing method |
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2019
- 2019-05-20 CN CN201920717524.0U patent/CN210532361U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023035049A1 (en) * | 2021-09-09 | 2023-03-16 | Fct Holdings Pty Ltd | Combustion system with ultralow nox emission and quick fuel mixing method |
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