CN212481278U - Novel thick and thin combustor - Google Patents
Novel thick and thin combustor Download PDFInfo
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- CN212481278U CN212481278U CN201922376762.2U CN201922376762U CN212481278U CN 212481278 U CN212481278 U CN 212481278U CN 201922376762 U CN201922376762 U CN 201922376762U CN 212481278 U CN212481278 U CN 212481278U
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Abstract
The utility model relates to the technical field of thick and thin burner equipment, and provides a novel thick and thin burner, which comprises a shell, wherein the upper end of the shell is opened and is provided with an installation port for installing a thin side flame device; a fresh side air inlet channel is arranged on the inner wall of the shell and is in sealing connection with the bottom wall of the fresh side flame device; be provided with the dense side intake duct on the inner wall of shell, dilute side flame device includes the combustion plate, and the combustion plate includes two main combustion plates and two vice combustion plates, and the one end interconnect of two main combustion plates all is provided with vice combustion plate in one side that two main combustion plates carried on the back mutually. The utility model overcomes prior art's is not enough, reasonable in design, and compact structure has solved current rich-lean burner flame inhomogeneous, the poor problem of combustion stability, the utility model discloses a simple structural grouping has improved the degree of consistency of flame, has improved the stability of burning, has reduced nitrogen oxide, low in cost simultaneously, and simple process has very strong practicality.
Description
Technical Field
The utility model relates to a dense-dilute combustor equipment technical field, concretely relates to novel dense-dilute combustor.
Background
Gas has become an important energy source in the civil field, but nitrogen oxides polluting the atmosphere are generated in the application process of the gas. In order to suppress the emission of nitrogen oxides, several combustion modes can be realized, such as cooling a combustor to reduce the combustion temperature, a full premix combustion mode, flue gas recirculation and thick and thin combustion.
The rich-lean combustion method is one of the important methods. It is a technique in which a part of fuel is burned under a condition of insufficient air (i.e., fuel over-rich combustion) and another part of fuel is burned under a condition of excess air (i.e., fuel over-lean combustion).
The following problems are generally existed in the prior thick-thin burner:
1. the traditional thick and thin combustor is easy to generate that the airflow distribution is not uniform enough after the mixture of natural gas and air enters the combustor, so that the combustion flame is not uniform, the combustion working condition is unstable, and the emission of nitrogen oxides in combustion waste gas cannot be reduced.
2. The conventional rich-lean burner has a too small adjustment range. When adjusting flame size in particular, when needs improve and fade side flame intensity, the entering rate of fuel need be improved this moment, along with the improvement of entering rate, can appear because of the air current distributes unevenly, the flame that the velocity of flow is high takes place to leave the flame, leads to flame to extinguish, and waste gas burns simultaneously, and carbon monoxide and oxynitride increase, when the needs are turned down and are faded side flame intensity, still because the air current distributes unevenly, flame that the velocity of flow is low can appear tempering, the phenomenon that the combustor is burnt out.
3. The flame stabilizing effect is poor. Although the dense side flame can play certain steady flame effect to the light side flame (when fuel concentration is great, dense side flame helps it to burn, when fuel concentration is low excessively, the fuel that dense side fire hole provided assists the burning, prevents that flame from extinguishing), the too big or undersize problem of local flame can appear in traditional dense and light combustor.
4. The processing technology is complicated and expensive.
Therefore, a novel thick-thin burner is provided.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a novel dense-dilute combustor has overcome the not enough of prior art, reasonable in design, and compact structure has solved current dense-dilute combustor flame inhomogeneous, the poor problem of combustion stability, the utility model discloses a simple structural grouping has improved the degree of consistency of flame, has improved the stability of burning, has reduced nitrogen oxide, and low in cost simultaneously, simple process has very strong practicality.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a novel thick-thin burner comprises a shell, wherein the upper end of the shell is provided with an opening and an installation opening for installing a thin-side flame device;
a fresh side air inlet channel is arranged on the inner wall of the shell and is in sealing connection with the bottom wall of the fresh side flame device; a dense side air inlet channel is arranged on the inner wall of the shell;
the side flame device that fades includes the combustion plate, and the combustion plate includes two main combustion plates and two vice combustion plates, and the one end interconnect of two main combustion plates, two main combustion plate one side that carry on the back mutually all are provided with vice combustion plate, and a plurality of U-shaped board interconnect are passed through to the one end of main combustion plate and vice combustion plate.
Further, a plurality of reinforcing members perpendicular to the light side flame device are connected to the upper end of the outer casing.
Furthermore, the one end of the side inlet channel that fades passes the lateral wall of shell and is connected with the side inlet port that fades, and the one end sealing connection that the side inlet channel that fades is located the shell has the tubaeform connector, and tubaeform connector will fade the diapire of side flame device and wrap completely.
Further, the inner wall of the horn-shaped connecting port close to one end of the light side air inlet is provided with an unclosed air passage choke, the air passage choke and the light side flame device are arranged in parallel, and the height of the air passage choke and the distance between the air passage choke and the light side air inlet are in inverse proportion through arranging the air passage choke.
Furthermore, the one end of dense side intake duct passes the lateral wall of shell and is connected with dense side inlet port, and the one end that dense side intake duct is located the shell is connected with the diffluence pass of two symmetries, and two diffluence passes are located the both sides of tubaeform connector.
Furthermore, a plurality of first concave grooves which are mutually contacted with the light side flame devices are equidistantly arranged on the mounting opening, and a plurality of thick side fire holes are separated from the first concave grooves on the mounting opening.
Furthermore, be provided with the vortex point that a plurality of equidistance distribute on the vice combustion plate, and the upper and lower end of vortex point is provided with the second depressed groove that a plurality of equidistance distribute respectively.
Further, be provided with the vortex strip that a plurality of equidistance distribute on the main combustion board, and the upper and lower end of main combustion board is provided with the second depressed groove that a plurality of equidistance distribute respectively, and the second depressed groove on main combustion board and the vice combustion board contradicts each other, and a plurality of second depressed grooves will fade the fire hole of side flame device and separate into a plurality of light side fire holes.
Furthermore, the light side flame device is formed by folding the combustion plates, the two auxiliary combustion plates are respectively folded towards the main combustion plate, and then the two main combustion plates are folded in half, so that the light side flame device is formed.
Furthermore, the width of the thick side fire holes is smaller than that of the light side fire holes.
(III) advantageous effects
The embodiment of the utility model provides a novel dense-dilute combustor. The method has the following beneficial effects:
1. can improve the degree of consistency of flame, separate into a plurality of side flame holes of becoming light through setting up a plurality of second depressed grooves with the play fire hole of the flame device of becoming light for light side flame can only follow and is sprayed out in the side flame hole of becoming light, makes light side flame concentrate more evenly.
2. Can fully mix natural gas and improve the combustion effect. Turbulence points and turbulence strips in the flame device at the light side can enable mixed natural gas to rotate around the turbulence points and the turbulence strips respectively, so that the air and the natural gas in the mixed natural gas are mixed more uniformly, and the stability of flame is improved
3. Can make the even entering of natural gas of mixing in the flame device of the side of declining, through setting up the air flue choke, make the mixed natural gas who enters into in the air flue of the side of declining, contact the high one side air flue choke of height earlier, partly mixed natural gas will pass the high air flue choke of height and enter into the flame device of the side of declining, the high air flue choke of height can block partly mixed natural gas and make it enter into the flame device of the side of declining from the high one side air flue choke of height simultaneously, thereby make the effect that reaches and flow equalize, make the even entering of natural gas of mixing in the flame device of the side of declining, the combustion effect is improved.
4. Through setting up the U-shaped plate can be homogeneous mixing natural gas once more, make and fade side flame more even, make flame change the tilt state burning by the upright state through setting up the U-shaped plate simultaneously, flame in two light side flame holes can form the offset simultaneously, can improve the effect of burning.
5. The adjusting range of the flame can be increased, when the fuel delivery is increased, the fuel is sprayed outwards, the flame at the dense side is intensively and uniformly combusted in the air inlet at the dense side, the fuel combustion in the light side fire hole can be better assisted, and meanwhile, under the action of the U-shaped plate, the two flames are oppositely impacted, so that the combustion effect is improved, the nitrogen oxide is reduced, and the height of the flame is improved; when fuel delivery is reduced, fuel in the dense side fire holes can be supplied to the dilute side fire holes for combustion at the same time, and the air flow distribution is more uniform, so that backfire can be prevented.
6. The flame stabilizing effect can be improved. A plurality of dense side fire holes are separated from the mounting port through a plurality of first concave grooves, so that flame can only be sprayed out of the dense side fire holes, the dense side flame is more concentrated and uniform, the uniform dense side flame is concentrated, the combustion effect of the dilute side flame can be improved, and the dilute side flame is more stable in combustion.
7. The failure rate can be reduced. The width in dense side fire hole is less than the width in light side fire hole, makes a light side fire hole correspond at least one dense side fire hole, when one of them dense side fire hole blockked up, through another dense side fire hole, can play certain steady flame effect to light side fire hole equally, prevents to influence the flame control range in light side fire hole.
8. The processing technology is simple, and the manufacturing cost is reduced. The two auxiliary combustion plates are respectively folded towards the main combustion plate, and then the two main combustion plates are folded in half, so that the light side flame device is formed, the process is simple, and the manufacturing cost is low.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a partially cut-away perspective view of FIG. 1;
FIG. 3 is a partially cut-away perspective view of FIG. 2;
FIG. 4 is a top view and a partially enlarged view of the present invention;
FIG. 5 is a schematic perspective view of the middle-lean side flame device according to the present invention;
FIG. 6 is a schematic front view of the middle-lean side flame device of the present invention;
FIG. 7 is a schematic view of the middle-lean flame device according to the present invention in an expanded state;
fig. 8 is a schematic view of the three-dimensional structure of the lean side flame device of the present invention in a reverse installation state.
In the figure: the flame device comprises a shell 1, a first sunken groove 1.1, a light side flame device 2, a combustion plate 2.1, a main combustion plate 2.1.1, an auxiliary combustion plate 2.1.2, a U-shaped plate 2.2, a second sunken groove 2.3, a turbulent flow point 2.4, a turbulent flow strip 2.5, a light side air inlet 3, a light side air inlet 3.1, an air passage choke 3.2, a thick side air inlet 4, a flow distribution port 4.1, a reinforcing piece 5, a light side fire hole a and a thick side fire hole b.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
referring to the attached drawings 1-8, a novel thick and thin burner comprises a shell 1, wherein an opening is formed in the upper end of the shell 1, a mounting hole used for mounting a thin side flame device 2 is formed in the upper end of the shell 1, a plurality of reinforcing pieces 5 perpendicular to the thin side flame device 2 are connected to the upper end of the shell 1, the thin side flame device 2 can be prevented from being taken out of the shell 1 through the arrangement of the reinforcing pieces 5, a certain limiting effect is achieved, meanwhile, the mounting hole can be fixed, and the phenomenon that the flame effect is influenced due to the fact that the mounting hole is easy to loosen after long-term use is avoided.
The inner wall of the shell 1 is provided with a light side air inlet 3.1, one end of the light side air inlet 3.1 penetrates through the side wall of the shell 1 and is connected with a light side air inlet 3, one end of the light side air inlet 3.1 located in the shell 1 is hermetically connected with a horn-shaped connecting port, the bottom wall of the light side flame device 2 is completely covered by the horn-shaped connecting port, the inner wall of the horn-shaped connecting port close to one end of the light side air inlet 3.1 is provided with an unclosed air passage choke 3.2, the air passage choke 3.2 is arranged in parallel with the light side flame device 2, the height of the air passage choke 3.2 is inversely proportional to the distance between the air passage choke 3.2 and the light side air inlet 3.1, mixed natural gas entering the light side air inlet 3.1 is enabled to firstly contact one side air passage choke 3.2 with high height, one part of the mixed natural gas can penetrate through the air passage choke 3.2 with high height to enter the light side flame device 2, and meanwhile, one part of the mixed natural gas can be blocked by one side air passage choke 3.2 with low 3.2, entering the light side flame device 2, thereby achieving the effect of flow equalization and enabling the mixed natural gas to enter the light side flame device 2 uniformly.
In this embodiment, as shown in fig. 1-4, the inner wall of shell 1 is located one section on the light side intake duct 3.1 and is provided with the dense side intake duct, the one end of dense side intake duct passes the lateral wall of shell 1 and is connected with dense side inlet port 4, dense side inlet port 4 can flow equalize mixed natural gas, the one end that dense side intake duct is located shell 1 is connected with the diffluence pass 4.1 of two symmetries, and two diffluence pass 4.1 are located the both sides of tubaeform connector, make the mixed natural gas that gets into from dense side inlet port 4 flow out from the intermittent type between light side flame device 2 and shell 1, form dense side flame, dense side flame can play certain steady flame effect to light side flame, improve the effect of dense side flame.
In this embodiment, as shown in fig. 1 and 4, a plurality of first concave grooves 1.1 which are in contact with the dilute side flame device 2 are equidistantly arranged on the mounting port, and a plurality of dense side flame holes b are separated from the mounting port through the plurality of first concave grooves 1.1, so that the flame can only be sprayed out from the dense side flame holes b, and the dense side flame is more concentrated and uniform.
In the present embodiment, as shown in fig. 4-7, the light side flame device 2 is formed by folding the combustion plate 2.1, the combustion plate 2.1 includes two main combustion plates 2.1.1 and two auxiliary combustion plates 2.1.2, one end of each of the two main combustion plates 2.1.1 is connected to each other, the opposite side of each of the two main combustion plates 2.1.1 is connected to the auxiliary combustion plate 2.1.2, one end of each of the main combustion plates 2.1.1 and the auxiliary combustion plates 2.1.2 is connected to each other through a plurality of U-shaped plates 2.2, the auxiliary combustion plates 2.1.2 are provided with a plurality of turbulence points 2.4 distributed at equal intervals, the upper and lower ends of the turbulence points 2.4 are respectively provided with a plurality of second concave grooves 2.3 distributed at equal intervals, the main combustion plates 2.1.1 are provided with a plurality of turbulence strips 2.5 distributed at equal intervals, the upper and lower ends of the main combustion plates 2.1.1 are respectively provided with a plurality of second concave grooves 2.3 distributed at equal intervals, the two auxiliary combustion plates 2.1 are respectively folded towards the main combustion plates 2.1, and then the main combustion plates are folded to form two half-fold devices, at this moment, the second concave grooves 2.3 on the main combustion plate 2.1.1 and the auxiliary combustion plate 2.1.2 are mutually contradicted, a plurality of second concave grooves 2.3 separate the fire outlet of the light side flame device 2 into a plurality of light side flame holes a, make light side flame can only be ejected from the light side flame holes a, make light side flame concentrate evenly more, simultaneously the burble flow point 2.4 and burble flow strip 2.5 in the light side flame device 2 can make the mixed natural gas rotate around burble flow point 2.4 and burble flow strip 2.5 respectively, make air and natural gas in the mixed natural gas more even, improve the stability of flame, and can evenly mix the natural gas once more through setting up U-shaped plate 2.2, make light side flame even more, make flame change into the inclined state burning from the upright state simultaneously through setting up U-shaped plate 2.2, the flame in two light side flame holes a can form the opposite impact, can improve the effect of burning.
In this embodiment, as shown in fig. 4, the width of the dense side fire holes b is smaller than that of the dilute side fire holes a, so that one of the dilute side fire holes a corresponds to at least one dense side fire hole b, and when one of the dense side fire holes b is blocked, the other dense side fire hole b can play a certain flame stabilizing role for the dilute side fire hole a, thereby preventing the flame adjusting range of the dilute side fire hole a from being affected.
Example 2:
as shown in fig. 8, the difference from embodiment 1 lies in that the light side flame device 2 is reversely installed in the installation opening, on one hand, the application range of the light side flame device 2 can be increased, and at the same time, the reverse installation of the light side flame device 2 makes the U-shaped plate 2.2 located at the lower side, and the U-shaped plate 2.2 can make the mixed natural gas enter the light side flame device 2 uniformly, thereby increasing the uniformity of the flame and further increasing the combustion effect of the light side flame.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A novel thick and thin combustor, including the shell, its characterized in that: the upper end of the shell is provided with an opening and an installation opening for installing the light side flame device;
a fresh side air inlet channel is arranged on the inner wall of the shell and is in sealing connection with the bottom wall of the fresh side flame device; a dense side air inlet channel is arranged on the inner wall of the shell;
the side flame device that fades includes the combustion plate, and the combustion plate includes two main combustion plates and two vice combustion plates, and the one end interconnect of two main combustion plates, two main combustion plate one side that carry on the back mutually all are provided with vice combustion plate, and a plurality of U-shaped board interconnect are passed through to the one end of main combustion plate and vice combustion plate.
2. A novel rich-lean burner as claimed in claim 1, wherein: the upper end of the casing is connected with a plurality of reinforcing members which are perpendicular to the light side flame device.
3. A novel rich-lean burner as claimed in claim 1, wherein: one end of the light side air inlet channel penetrates through the side wall of the shell and is connected with a light side air inlet, one end, located in the shell, of the light side air inlet channel is connected with a horn-shaped connector in a sealing mode, and the bottom wall of the light side flame device is completely coated by the horn-shaped connector.
4. A novel rich-lean burner as claimed in claim 3, wherein: the inner wall of the horn-shaped connecting port close to one end of the light side air inlet is provided with an unclosed air passage choke, the air passage choke and the light side flame device are arranged in parallel, and the height of the air passage choke and the distance between the air passage choke and the light side air inlet are in inverse proportion through arranging the air passage choke.
5. A novel rich-lean burner as claimed in claim 1, wherein: one end of the dense-side air inlet channel penetrates through the side wall of the shell and is connected with a dense-side air inlet, one end of the dense-side air inlet channel, which is located in the shell, is connected with two symmetrical flow distribution ports, and the two flow distribution ports are located on two sides of the horn-shaped connecting port.
6. A novel rich-lean burner as claimed in claim 1, wherein: a plurality of first depressed grooves which are mutually contacted with the flame device on the light side are equidistantly arranged on the mounting opening, and a plurality of dense side fire holes are separated from the first depressed grooves on the mounting opening.
7. A novel rich-lean burner as claimed in claim 1, wherein: the secondary combustion plate is provided with a plurality of turbulence points distributed at equal intervals, and the upper end and the lower end of each turbulence point are respectively provided with a plurality of second concave grooves distributed at equal intervals.
8. A novel rich-lean burner as claimed in claim 1 or 7, wherein: the vortex strip that is provided with a plurality of equidistance on the main combustion board and distributes, and the upper and lower end of main combustion board is provided with the second depressed groove that a plurality of equidistance distribute respectively, and the second depressed groove on main combustion board and the vice combustion plate contradicts each other, and a plurality of second depressed grooves will fade the hole of a fire of a flame device and separate into a plurality of light side fire holes.
9. A novel rich-lean burner as claimed in claim 1, wherein: the light side flame device is formed by folding the combustion plates, the two auxiliary combustion plates are respectively folded towards the main combustion plate, and then the two main combustion plates are folded in half, so that the light side flame device is formed.
10. The new rich-lean burner as set forth in claim 6, wherein: the width of the dense side fire hole is smaller than that of the dilute side fire hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922376762.2U CN212481278U (en) | 2019-12-25 | 2019-12-25 | Novel thick and thin combustor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922376762.2U CN212481278U (en) | 2019-12-25 | 2019-12-25 | Novel thick and thin combustor |
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| CN212481278U true CN212481278U (en) | 2021-02-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925757A (en) * | 2019-12-25 | 2020-03-27 | 来美能源科技无锡有限公司 | Novel thick and thin combustor |
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2019
- 2019-12-25 CN CN201922376762.2U patent/CN212481278U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925757A (en) * | 2019-12-25 | 2020-03-27 | 来美能源科技无锡有限公司 | Novel thick and thin combustor |
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