Tubular reactor with material mixing structure

Abstract

The utility model discloses a tubular reactor with a material mixing structure. A first material distribution space and a second material distribution space are arranged in the tubular reactor, and a first sealing plate and a second sealing plate for sealing are respectively arranged at the tops of the first material distribution space and the second material distribution space; a plurality of mixing channels are vertically inserted through the first material distribution space and the second material distribution space; wherein the mixing channel is composed of a first distribution pipe and a second distribution pipe which are connected end to end, the first distribution pipe is inserted into the second distribution pipe, and a certain interval space for materials to enter is arranged between the first distribution pipe and the second distribution pipe; the first distribution pipe penetrates through the first sealing plate to be communicated with the first material distribution space, and the second distribution pipe penetrates through the second sealing plate to be communicated with the second material distribution space; according to the utility model, two materials are sequentially introduced into the mixing channel, so that the two materials are mixed under the condition that two-time uniform distribution is realized; therefore, under the condition that a uniform distributor is not used, the two materials are fully and uniformly mixed.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment for material reactors, and specifically to a tubular reactor with a material mixing structure. Background Technology

[0002] In a tubular reactor, two materials need to be fed simultaneously to achieve the process of multiple materials entering the reaction at the same time.

[0003] However, without any distributor, it is difficult to achieve uniform mixing of the two materials when they enter the reaction tube; and the materials that are not uniformly mixed cannot fully react after entering the tube.

[0004] To overcome this limitation, this invention proposes a tubular reactor with a material mixing structure. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a tubular reactor with a material mixing structure. First, two materials are evenly distributed through a distributor, and then the two materials are sequentially introduced through a mixing channel. Further, the two materials are mixed evenly. Thus, this utility model achieves the function of fully and uniformly mixing two materials without using a distributor.

[0006] To achieve the above-mentioned technical objectives, the present invention employs the following technical means:

[0007] A tubular reactor with a material mixing structure includes a circular tubular reactor.

[0008] The tubular reactor is provided with a first material distribution space and a second material distribution space from bottom to top, and the top of the first material distribution space and the second material distribution space are respectively provided with a first sealing plate and a second sealing plate for sealing.

[0009] Multiple mixing channels are vertically inserted through the first material distribution space and the second material distribution space; wherein, the mixing channel includes two sections of a first distribution pipe and a second distribution pipe connected end to end, and the first distribution pipe is inserted inside the second distribution pipe, and there is an interval space between the two for material to enter.

[0010] The first distribution pipe passes through the first sealing plate and communicates with the first material distribution space, and the second distribution pipe passes through the second sealing plate and communicates with the second material distribution space.

[0011] The mixing channels are evenly distributed inside the tubular reactor, and adjacent mixing channels enclose the central space into a square space.

[0012] The first material distribution space has a first distribution disk in the middle; wherein, the middle of the first distribution disk has a first distribution hole evenly arranged in an array; wherein, the first distribution hole is coaxially arranged with the square space.

[0013] The second material distribution space has a second distribution disk in the middle; wherein, the middle of the second distribution disk has a uniform array of second distribution holes; wherein, the second distribution holes are coaxially arranged with the square space.

[0014] The end of the first material inlet of the first material distribution space is connected to a 90-degree elbow, and the elbow is configured to face the bottom wall of the first material distribution space.

[0015] A limiting plate is fixed between the outer side wall of the first distribution tube and the inner side wall of the second distribution tube, and multiple limiting plates are arranged in a ring array around the central axis of the mixing channel.

[0016] The limiting plate is fixedly connected to the first distribution pipe by spot welding.

[0017] The side cross-section of the limiting plate is a right trapezoid.

[0018] The sum of the cross-sectional areas of the space between the outer sidewall of the first distribution pipe and the inner sidewall of the second distribution pipe is greater than the cross-sectional area of ​​the inlet of the second material distribution space. Beneficial effects

[0019] This invention introduces material A and material B into a first and second material distribution space that are isolated from each other, ensuring that they do not interfere with each other. At this time, the first distribution hole of the first distribution plate and the second distribution hole of the second distribution plate evenly distribute material A and material B respectively. Then, the two materials are introduced sequentially through the mixing channel. After material A and material B have been evenly distributed once, the two materials are mixed while being evenly distributed a second time. Thus, this invention achieves the function of fully and evenly mixing two materials without using a distributor. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the internal structure of the tubular reaction tube of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the mixing channel of this utility model;

[0022] Figure 3 This is a schematic cross-sectional view of the first distribution tube of this utility model;

[0023] Figure 4 This is a top view of the first distribution plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the first distribution disc and the first distribution tube of this utility model;

[0025] Figure 6 This is a schematic cross-sectional view of the second distribution tube of this utility model;

[0026] Figure 7 This is a top view of the second distribution plate of this utility model;

[0027] Figure 8 This is a schematic diagram of the second distribution disc and the second distribution tube of this utility model.

[0028] In the diagram: 1. Tubular reactor; 2. First material distribution space; 3. Second material distribution space; 4. Mixing channel;

[0029] 21. First material inlet; 22. First distribution plate; 23. First sealing plate;

[0030] 211. Elbow;

[0031] 221. First distribution hole;

[0032] 31. Second material inlet; 32. Second distribution plate; 33. Second sealing plate;

[0033] 321. Second distribution hole;

[0034] 41. First distribution pipe; 42. Second distribution pipe; 43. Limiting plate. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0036] Reference Figures 1-8 One embodiment provided by this utility model:

[0037] This utility model provides a tubular reactor with a material mixing structure, including a cylindrical tubular reactor 1; a first material distribution space 2 and a second material distribution space 3 are arranged from bottom to top inside the tubular reactor 1, and a first sealing plate 23 and a second sealing plate 33 for sealing are respectively provided at the top of the first material distribution space 2 and the second material distribution space 3; multiple mixing channels 4 are vertically inserted through the first material distribution space 2 and the second material distribution space 3; wherein, the mixing channel 4 includes two sections of a first distribution pipe 41 and a second distribution pipe 42 connected end to end, and the first distribution pipe 41 is inserted inside the second distribution pipe 42, and a certain interval space is provided between the two for material entry; the first distribution pipe 41 passes through the first sealing plate 23 and communicates with the first material distribution space 2, and the second distribution pipe 42 passes through the second sealing plate 33 and communicates with the second material distribution space 3.

[0038] Reference Figure 1 Material A and material B are introduced into the first material distribution space 2 and the second material distribution space 3, which are isolated from each other, while maintaining mutual non-interference. At this time, material A and material B are uniformly distributed in the first material distribution space 2 and the second material distribution space 3, respectively. Then, the two materials are introduced into the mixing channel 4 in sequence. After material A and material B have been uniformly distributed once, the two materials are mixed while being uniformly distributed a second time. Thus, this utility model achieves the function of fully and uniformly mixing two materials without using a distributor.

[0039] Mixing channels 4 are evenly distributed inside the tubular reactor 1, and adjacent mixing channels 4 enclose the central space to form a square space; a first distribution disk 22 is provided in the center of the first material distribution space 2; wherein, a first distribution hole 221 is uniformly arrayed in the center of the first distribution disk 22; wherein, the first distribution hole 221 is coaxially arranged with the square space; a second distribution disk 32 is provided in the center of the second material distribution space 3; wherein, a second distribution hole 321 is uniformly arrayed in the center of the second distribution disk 32; wherein, the second distribution hole 321 is coaxially arranged with the square space.

[0040] Reference Figures 3 to 8 The distribution disk provided in the middle of the first material distribution space 2 and the second material distribution space 3 in this application is guided by the distribution holes when the material passes through, so as to achieve uniform distribution of the material and realize the uniform flow of the material; and, through the staggered arrangement of holes between the distribution disk and the distribution pipe, this application makes each type of material flow uniformly in the cavity, thereby reducing the pressure drop and flow velocity of the material in the cavity and improving the mixing and distribution efficiency.

[0041] The end of the first material inlet 21 is connected to a 90-degree elbow 211, and the elbow 211 is configured to face the bottom wall of the first material distribution space 2.

[0042] Reference Figure 1 Material A flows to the bottom of the reactor. The rebound of material A after contact with the bottom of the reactor achieves pre-distribution of material A, avoiding the impact of material A after it enters.

[0043] A limiting plate 43 is fixed between the outer side wall of the first distribution pipe 41 and the inner side wall of the second distribution pipe 42, and multiple limiting plates 43 are arranged in a ring array around the central axis of the mixing channel 4; and the limiting plates 43 are fixedly connected to the first distribution pipe 41 by spot welding.

[0044] Reference Figure 2 To ensure that the first distribution pipe 41 is located at the center of the second distribution pipe 42, three limiting plates 43 are evenly added in the circumferential direction at the top end of the first distribution pipe 41; and, to prevent the first distribution pipe 41 from deforming when the limiting plates 43 are welded to the first distribution pipe 41, the limiting plates 43 and the first distribution pipe 41 are considered to be spot welded.

[0045] The side cross section of the limiting plate 43 is a right trapezoid.

[0046] Reference Figure 2 When the first distribution tube 41 is fixed with the limiting plate 43, and the tail end of the second distribution tube 42 is inserted, the connection between the first distribution tube 41 and the second distribution tube 42 becomes increasingly tight as the insertion depth gradually increases.

[0047] The sum of the cross-sectional areas of the space between the outer wall of the first distribution pipe 41 and the inner wall of the second distribution pipe 42 is greater than the cross-sectional area of ​​the inlet of the second material distribution space 3.

[0048] Specifically, the sum of the cross-sectional areas of the space between the outer wall of the first distribution pipe 41 and the inner wall of the second distribution pipe 42 should be equal to 1.5 times the cross-sectional area of ​​the inlet of the second material distribution space 3.

[0049] Working principle:

[0050] First, material A enters the first material distribution space 2 along the first material inlet 21 and the elbow 211, and is pre-distributed by the elbow 211; then it passes through the first distribution plate 22 to achieve the primary distribution of material A; and finally it enters the first distribution pipe 41 to achieve the secondary distribution of material A.

[0051] Secondly, material B enters the second material distribution space 3 along the second material inlet 31, passes through the first distribution disk 22 to achieve the primary distribution of material B, and finally enters the second distribution pipe 42 to achieve the secondary distribution of material B.

[0052] Finally, material A, which has undergone secondary distribution, and material B, which has undergone secondary distribution, are mixed in mixing channel 4 to achieve thorough mixing.

[0053] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A tubular reactor with a material mixing structure, comprising a circular tubular reactor (1); characterized in that: The tubular reactor (1) is provided with a first material distribution space (2) and a second material distribution space (3) from bottom to top, and the top of the first material distribution space (2) and the second material distribution space (3) are respectively provided with a first sealing plate (23) and a second sealing plate (33) for sealing. Multiple mixing channels (4) are vertically inserted through the first material distribution space (2) and the second material distribution space (3); wherein, the mixing channel (4) includes two sections of a first distribution pipe (41) and a second distribution pipe (42) connected end to end, and the first distribution pipe (41) is inserted inside the second distribution pipe (42), and there is an interval space between the two for material to enter; The first distribution pipe (41) passes through the first sealing plate (23) and communicates with the first material distribution space (2), and the second distribution pipe (42) passes through the second sealing plate (33) and communicates with the second material distribution space (3).

2. The tubular reactor with a material mixing structure according to claim 1, characterized in that: The mixing channels (4) are evenly distributed inside the tubular reactor (1), and adjacent mixing channels (4) enclose the central space into a square space; The first material distribution space (2) has a first distribution disk in the middle; wherein, the first distribution disk has a first distribution hole (221) evenly arrayed in the middle; wherein, the first distribution hole (221) is coaxially arranged with the square space; The second material distribution space (3) has a second distribution disk in the middle; wherein, the middle of the second distribution disk has a uniform array of second distribution holes (321); wherein, the second distribution holes (321) are coaxially arranged with the square space.

3. The tubular reactor with a material mixing structure according to claim 1, characterized in that: The first material inlet (21) of the first material distribution space (2) is connected to a 90-degree elbow (211) at its end, and the elbow (211) is arranged to face the bottom wall of the first material distribution space (2).

4. The tubular reactor with a material mixing structure according to claim 2, characterized in that: A limiting plate (43) is fixed between the outer side wall of the first distribution pipe (41) and the inner side wall of the second distribution pipe (42), and multiple limiting plates (43) are arranged in a ring array around the central axis of the mixing channel (4).

5. The tubular reactor with a material mixing structure according to claim 4, characterized in that: The limiting plate (43) is fixedly connected to the first distribution pipe (41) by spot welding.

6. The tubular reactor with a material mixing structure according to claim 5, characterized in that: The side cross section of the limiting plate (43) is a right trapezoid.

7. The tubular reactor with a material mixing structure according to claim 1, characterized in that: The sum of the cross-sectional areas of the space between the outer sidewall of the first distribution pipe (41) and the inner sidewall of the second distribution pipe (42) is greater than the cross-sectional area of ​​the inlet of the second material distribution space (3).

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