CN216048380U - Air distribution device of air heating furnace - Google Patents
Air distribution device of air heating furnace Download PDFInfo
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- CN216048380U CN216048380U CN202122463137.9U CN202122463137U CN216048380U CN 216048380 U CN216048380 U CN 216048380U CN 202122463137 U CN202122463137 U CN 202122463137U CN 216048380 U CN216048380 U CN 216048380U
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- heating furnace
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Abstract
The utility model belongs to the technical field of air heating furnaces, and discloses a gas distribution device of an air heating furnace, which comprises an inlet elbow, a heating furnace inlet conical section, a heating furnace body, a burner assembly, a heating furnace outlet conical section and an outlet elbow; the inlet elbow and the outlet elbow have the same structure, and the inner parts of the inlet elbow and the outlet elbow are provided with elbow internal distribution plates; the structure of the heating furnace inlet conical section is consistent with that of the heating furnace outlet conical section, a plurality of bending distribution plates are arranged inside the heating furnace inlet conical section and the heating furnace outlet conical section, and the plurality of bending distribution plates are distributed annularly relative to the axis of the heating furnace inlet conical section or the heating furnace outlet conical section. The air current mixes more evenly when the distribution plate in the elbow of import elbow and the inside of export elbow, carries out the air current when the inside bending distribution plate of heating furnace import taper section and heating furnace export taper section of flowing through and rotates, and the air current mixes, rotates, increases the confusion nature of air current, makes the air current carry out abundant mixture.
Description
Technical Field
The utility model relates to the technical field of air heating furnaces, in particular to a gas distribution device of an air heating furnace.
Background
The air heating furnace heats the preheated air from the upstream from 400 ℃ to 600 ℃ to 700 ℃ and then enters the downstream reactor to coke the surface of the catalyst, the process requires that the maximum temperature difference between any two transverse points in the air flow of the air heating furnace is 15 ℃, and the maximum temperature difference between the two transverse points is large (about 1500t/h) and the flow speed is high, so that the temperature field distribution in the furnace is uneven, the heating effect is poor, the downstream coking effect on the catalyst is influenced, and the process requirements cannot be met.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
Aiming at the problems in the prior art, the utility model aims to provide a gas distribution device of an air heating furnace, which mixes and rotates air flow when the air flow passes through the gas distribution components, increases the disorder of the air flow, fully mixes the air flow, achieves uniform temperature distribution, has smaller transverse temperature change and meets the process requirements.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A gas distribution device of an air heating furnace comprises an inlet elbow, a heating furnace inlet conical section, a heating furnace body, a burner assembly, a heating furnace outlet conical section and an outlet elbow, wherein the burner assembly is fixedly installed inside the heating furnace body; the inlet elbow and the outlet elbow have the same structure, and the inlet elbow and the outlet elbow are internally provided with elbow internal distribution plates; the structure of the heating furnace inlet conical section is consistent with that of the heating furnace outlet conical section, a plurality of bending distribution plates are arranged inside the heating furnace inlet conical section and the heating furnace outlet conical section, and the plurality of bending distribution plates are annularly distributed relative to the axis of the heating furnace inlet conical section or the heating furnace outlet conical section.
As a further scheme of the utility model: the inner distribution plates in the elbow of the inlet elbow and the inner distribution plates in the elbow of the outlet elbow are two, a plurality of support rods are further arranged in the inlet elbow and the outlet elbow, and the plurality of support rods are respectively welded between the inner wall of the inlet elbow or the inner wall of the outlet elbow and the inner distribution plates in the elbow and are used for fixing the inner distribution plates in the elbow.
As a further scheme of the utility model: the steel pipe is arranged in the heating furnace inlet conical section and the heating furnace outlet conical section, the steel pipe is arranged at the axis of the heating furnace inlet conical section or the heating furnace outlet conical section, and the bending distribution plate is fixedly connected between the outer side of the steel pipe and the inner wall of the heating furnace inlet conical section or the heating furnace outlet conical section.
As a further scheme of the utility model: one end of the bent distribution plate, which is close to the inner wall of the inlet conical section or the outlet conical section of the heating furnace, is bent.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages that:
this scheme import elbow all sets up the interior distribution plate of elbow with the inside of export elbow, the inside of heating furnace import conic section and heating furnace export conic section is provided with the distribution plate of bending, the distribution plate of bending is the annular distribution, it is more even to mix when the air flows through the interior distribution plate of elbow of import elbow and export elbow, it is rotatory to carry out the air current when flowing through the inside distribution plate of bending of heating furnace import conic section and heating furnace export conic section, make the air current mix when these gas distribution subassemblies, it is rotatory, increase the confusion nature of air current, make the air current carry out abundant mixing, reach temperature evenly distributed, horizontal temperature variation is littleer, satisfy the technological requirement.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection between the distribution plate and the support rod in the elbow of the present invention;
FIG. 3 is a schematic view of the connection between the bent distribution plate and the steel pipe according to the present invention.
The reference numbers in the figures illustrate:
1. an inlet elbow; 2. an inlet cone section of the heating furnace; 3. a heating furnace body; 4. a burner assembly; 5. an outlet cone section of the heating furnace; 6. an outlet elbow; 7. an inner distribution plate in the elbow; 8. a support bar; 9. bending the distribution plate; 10. and (5) steel pipes.
Detailed Description
The technical solution in 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; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, an air heating furnace gas distribution device includes an inlet elbow 1, a heating furnace inlet conical section 2, a heating furnace body 3, a burner assembly 4, a heating furnace outlet conical section 5 and an outlet elbow 6, wherein the burner assembly 4 is fixedly installed inside the heating furnace body 3, the heating furnace inlet conical section 2 and the heating furnace outlet conical section 5 are respectively and fixedly connected to a gas inlet end and a gas outlet end of the heating furnace body 3, the inlet elbow 1 is fixedly connected to one end of the heating furnace inlet conical section 2 away from the heating furnace body 3, and the outlet elbow 6 is fixedly connected to one end of the heating furnace outlet conical section 5 away from the heating furnace body 3; the inlet elbow 1 and the outlet elbow 6 have the same structure, and the inner parts of the inlet elbow 1 and the outlet elbow 6 are both provided with an elbow inner distribution plate 7; the structure of the heating furnace inlet conical section 2 is consistent with that of the heating furnace outlet conical section 5, a plurality of bending distribution plates 9 are arranged inside the heating furnace inlet conical section 2 and the heating furnace outlet conical section 5, and the plurality of bending distribution plates 9 are distributed annularly relative to the axis of the heating furnace inlet conical section 2 or the heating furnace outlet conical section 5.
Furthermore, the distribution plate 7 in the elbow inside inlet elbow 1 and outlet elbow 6 is two, and a plurality of bracing pieces 8 are still provided with in the inside of inlet elbow 1 and outlet elbow 6, and a plurality of bracing pieces 8 weld respectively between the distribution plate 7 in the elbow and the inner wall of inlet elbow 1 or outlet elbow 6 and be used for fixed elbow internal distribution plate 7.
Furthermore, a steel pipe 10 is arranged inside the heating furnace inlet conical section 2 and the heating furnace outlet conical section 5, the steel pipe 10 is arranged at the axis of the heating furnace inlet conical section 2 or the heating furnace outlet conical section 5, and the bending distribution plate 9 is fixedly connected between the outer side of the steel pipe 10 and the inner wall of the heating furnace inlet conical section 2 or the heating furnace outlet conical section 5.
Furthermore, one end of the bent distribution plate 9, which is close to the inner wall of the inlet conical section 2 of the heating furnace or the inner wall of the outlet conical section 5 of the heating furnace, is bent.
The working principle is as follows: the utility model comprises an inlet elbow 1, a heating furnace inlet conical section 2, a heating furnace body 3, a burner assembly 4, a heating furnace outlet conical section 5 and an outlet elbow 6, wherein two layers of elbow internal distribution plates 7 are respectively arranged inside the inlet elbow 1 and the outlet elbow 6, a support rod 8 is welded between the inner wall of the inlet elbow 1 or the outlet elbow 6 and the elbow internal distribution plates 7 for fixing the elbow internal distribution plates 7, a bending distribution plate 9 and a steel pipe 10 are arranged inside the heating furnace inlet conical section 2 and the heating furnace outlet conical section 5, the bending distribution plate 9 is fixedly connected between the outer side of the steel pipe 10 and the inner wall of the heating furnace inlet conical section 2 or the heating furnace outlet conical section 5, the bending distribution plates 9 are annularly distributed, one end of the bending distribution plate 9 close to the inner wall of the heating furnace inlet conical section 2 or the heating furnace outlet conical section 5 is bent, and is more uniformly mixed when air flows through the elbow internal distribution plates 7 inside the inlet elbow 1 and the outlet elbow 6, the air flow is rotated when the bent distribution plate 9 flows through the inlet conical section 2 of the heating furnace and the outlet conical section 5 of the heating furnace, so that the air flow is mixed and rotated when passing through the gas distribution assemblies, the disorder of the air flow is increased, the air flow is sufficiently mixed, the temperature is uniformly distributed, the transverse temperature change is smaller, and the process requirement is met.
The foregoing is only a preferred embodiment of the present invention; the scope of the utility model is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (4)
1. The utility model provides an air heating furnace gas distribution device, includes inlet elbow (1), heating furnace import conic section (2), heating furnace body (3), combustor subassembly (4), heating furnace export conic section (5) and export elbow (6), its characterized in that: the burner assembly (4) is fixedly installed inside the heating furnace body (3), the heating furnace inlet conical section (2) and the heating furnace outlet conical section (5) are respectively and fixedly connected to the air inlet end and the air outlet end of the heating furnace body (3), the inlet elbow (1) is fixedly connected to one end, away from the heating furnace body (3), of the heating furnace inlet conical section (2), and the outlet elbow (6) is fixedly connected to one end, away from the heating furnace body (3), of the heating furnace outlet conical section (5); the inlet elbow (1) and the outlet elbow (6) are consistent in structure, and the inlet elbow (1) and the outlet elbow (6) are internally provided with elbow internal distribution plates (7); the structure of the heating furnace inlet conical section (2) is consistent with that of the heating furnace outlet conical section (5), a plurality of bending distribution plates (9) are arranged inside the heating furnace inlet conical section (2) and the heating furnace outlet conical section (5), and the bending distribution plates (9) are distributed annularly relative to the axis of the heating furnace inlet conical section (2) or the axis of the heating furnace outlet conical section (5).
2. An air heating furnace gas distribution unit according to claim 1, characterized in that: it is inside to import elbow (1) and outlet elbow (6) distribution board (7) are two in the elbow, import elbow (1) still is provided with a plurality of bracing pieces (8) with the inside of outlet elbow (6), and is a plurality of bracing piece (8) weld respectively in the inner wall of import elbow (1) or outlet elbow (6) and elbow in be used for fixed elbow in distribution board (7).
3. An air heating furnace gas distribution unit according to claim 1, characterized in that: the steel pipe (10) is further arranged inside the heating furnace inlet conical section (2) and the heating furnace outlet conical section (5), the steel pipe (10) is arranged at the axis of the heating furnace inlet conical section (2) or the heating furnace outlet conical section (5), and the bending distribution plate (9) is fixedly connected between the outer side of the steel pipe (10) and the inner wall of the heating furnace inlet conical section (2) or the heating furnace outlet conical section (5).
4. An air heating furnace gas distribution unit according to claim 3, characterized in that: one end of the bent distribution plate (9) close to the inner wall of the inlet conical section (2) or the outlet conical section (5) of the heating furnace is bent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122463137.9U CN216048380U (en) | 2021-10-13 | 2021-10-13 | Air distribution device of air heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122463137.9U CN216048380U (en) | 2021-10-13 | 2021-10-13 | Air distribution device of air heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216048380U true CN216048380U (en) | 2022-03-15 |
Family
ID=80548634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122463137.9U Active CN216048380U (en) | 2021-10-13 | 2021-10-13 | Air distribution device of air heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216048380U (en) |
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2021
- 2021-10-13 CN CN202122463137.9U patent/CN216048380U/en active Active
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