inlet distributor

Abstract

The present disclosure relates to an inlet distributor, comprising: a first pipe structure for connecting a feed pipe and a reactor; and a second pipe structure for being arranged in the reactor, the second pipe structure comprising a first connecting pipe and a flow splitting assembly, a first end of the first connecting pipe being detachably connected with the first pipe structure, and a second end of the first connecting pipe being detachably connected with the flow splitting assembly. In this way, by detachably connecting the first end of the first connecting pipe in the second pipe structure with the first pipe structure, and detachably connecting the second end of the first connecting pipe with the flow splitting assembly, the inlet distributor can be timely disassembled and replaced when local failure occurs.

Description

Technical Field

[0001] This disclosure relates to the field of petrochemical equipment technology, and more specifically, to an inlet distributor. Background Technology

[0002] During the operation of a C2 hydrogenation reactor, gaseous reactants flow in from the top inlet and undergo a series of reactions upon contact with the catalyst ceramic balls inside the reactor, producing the corresponding products. To ensure more thorough, uniform, and effective contact between the reactants and the catalyst ceramic balls, thereby improving reaction efficiency and operational stability, a gas distributor is typically installed at the top inlet. This distributor ensures that the reactants are fully dispersed upon entry before entering the catalyst bed to react.

[0003] Currently, most commonly used inlet distributors are non-removable structures, with the distributors directly welded to the mating flanges or top end caps. When the distributors become clogged or corroded and fail, they cannot be replaced, causing great difficulties for inspection and maintenance. Furthermore, when the throughput of the reactants changes significantly, the existing distributor structure cannot be adjusted according to the changes in throughput, resulting in limited operational flexibility of the distributors. Summary of the Invention

[0004] The purpose of this disclosure is to provide an inlet distributor in which a first pipe structure and a second pipe structure are detachably connected, to at least partially solve the problems in the related art.

[0005] To achieve the above objectives, this disclosure provides an inlet distributor, comprising: a first pipe structure for connecting a feed pipe and a reactor; and a second pipe structure for being disposed within the reactor, the second pipe structure comprising a first connecting pipe and a flow-diverting assembly, a first end of the first connecting pipe being detachably connected to the first pipe structure, and a second end of the first connecting pipe being detachably connected to the flow-diverting assembly.

[0006] Optionally, the first end of the first connecting pipe is constructed as a first annular flange and the second end is constructed as a second annular flange. The first annular flange is provided with a plurality of first mounting portions, and the second annular flange is provided with a plurality of second mounting portions. The first pipe structure is provided with a first mating portion that cooperates with the first mounting portion, and the diversion component is provided with a second mating portion that cooperates with the second mounting portion. The first mounting portion is connected to the first mating portion, and the second mounting portion is connected to the second mating portion to detachably connect the first connecting pipe to the first pipe structure and the diversion component, respectively.

[0007] Optionally, the first mounting portion is configured as a plurality of first mounting holes, which are spaced apart circumferentially around the rotation center of the first annular flange; the first mating portion is configured as a plurality of first mating holes corresponding one-to-one with the first mounting holes; and fasteners pass through the first mounting holes and the first mating holes to detachably connect the first connecting pipe to the first pipe structure; and / or the second mounting portion is configured as a plurality of second mounting holes, which are spaced apart circumferentially around the rotation center of the second annular flange; the second mating portion is configured as a plurality of second mating holes corresponding one-to-one with the second mounting holes; and fasteners pass through the second mounting holes and the second mating holes to detachably connect the first connecting pipe to the diversion assembly.

[0008] Optionally, the plurality of first mounting holes are distributed at equal angles around the rotation center of the first annular flange.

[0009] Optionally, the first annular flange and the second annular flange are integrally formed with the first connecting pipe, or the first annular flange and the second annular flange are welded to the first connecting pipe.

[0010] Optionally, the inlet distributor further includes a plurality of first reinforcing plates and a plurality of second reinforcing plates. The plurality of first reinforcing plates are circumferentially spaced between the first annular flange and the first connecting pipe around the rotation center of the first annular flange. The first reinforcing plates are fixedly connected to the first annular flange and the first connecting pipe, respectively. The plurality of second reinforcing plates are circumferentially spaced between the second annular flange and the first connecting pipe around the rotation center of the second annular flange. The second reinforcing plates are fixedly connected to the second annular flange and the first connecting pipe, respectively.

[0011] Optionally, the diversion assembly includes a plurality of diversion elements detachably connected in a first direction, the diversion elements including a first diversion hole formed in the first direction and a plurality of second diversion holes formed in a second direction.

[0012] Optionally, the diverter is constructed as a ring plate, and the surface of the ring plate is provided with a plurality of first connecting holes arranged around the central axis of the ring plate. The first connecting holes are arranged concentrically with the second mating holes. An installation tube is provided between the first connecting holes of adjacent ring plates, and fasteners pass through the first connecting holes and the second mating holes to detachably connect the plurality of ring plates to the second annular flange.

[0013] Optionally, the inlet distributor further includes a diverter plate, which has second connecting holes that correspond one-to-one with the first connecting holes on the ring plate away from the second reinforcing plate. Fasteners pass through the first and second connecting holes to detachably connect the diverter plate to the ring plate away from the second reinforcing plate. The diverter plate has a plurality of third diverter holes, and the spacing between two adjacent third diverter holes is equal.

[0014] Optionally, the first pipeline structure includes a first flange, a second connecting pipe, and a second flange. One end of the second connecting pipe is fixedly connected to the first flange, and the other end of the second connecting pipe is fixedly connected to the second flange. The second flange is detachably connected to the first end of the first connecting pipe.

[0015] Through the above technical solution, the first end of the first connecting pipe in the second pipeline structure is detachably connected to the first pipeline structure, and the second end of the first connecting pipe is detachably connected to the diversion component, so that the inlet distributor can be disassembled and replaced in a timely manner when a partial failure occurs.

[0016] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of a half-section of the inlet distributor provided in an exemplary embodiment of this disclosure;

[0019] Figure 2 This is a top view of the ring plate provided in an exemplary embodiment of this disclosure;

[0020] Figure 3 This is a top view of the diverter provided in an exemplary embodiment of this disclosure;

[0021] Figure 4 yes Figure 1 Enlarged structural diagram of section A in the middle;

[0022] Figure 5 yes Figure 1 A magnified structural diagram of section B.

[0023] Explanation of reference numerals in the attached figures

[0024] 1-First piping structure; 11-First mating hole; 12-First flange; 13-Second connecting pipe; 14-Second flange; 2-Reactor; 3-Second piping structure; 31-First connecting pipe; 32-Flow divider assembly; 321-Second mating hole; 322-Flow divider component; 323-First flow divider hole; 324-First connecting hole; 325-Installation pipe; 33-First annular flange; 331-First mounting hole; 34-Second annular flange; 341-Second mounting hole; 4-Fastener; 5-First reinforcing plate; 6-Second reinforcing plate; 7-Flow divider plate; 71-Second connecting hole; 72-Third flow divider hole. Detailed Implementation

[0025] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0026] In this disclosure, unless otherwise stated, directional terms such as "first direction" are used in accordance with [the relevant regulations]. Figure 1 The X direction shown is indicated by the "second direction," which can be referred to in detail. Figure 1 The Y-direction indicated is shown; the "center line of rotation of the first connecting pipe" can be specifically referred to. Figure 1 The M-line, "inner" and "outer," refers to the outline of the corresponding component itself. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not indicate sequence or importance. In the following description relating to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0027] like Figures 1-5 As shown, this disclosure provides an inlet distributor, comprising: a first pipe structure 1 and a second pipe structure 3. The first pipe structure 1 is used to connect a feed pipe and a reactor 2. The second pipe structure 3 is used to be disposed inside the reactor 2. The second pipe structure 3 includes a first connecting pipe 31 and a diversion component 32. The first end of the first connecting pipe 31 is detachably connected to the first pipe structure 1, and the second end of the first connecting pipe 31 is detachably connected to the diversion component 32.

[0028] Through the above technical solution, the first end of the first connecting pipe 31 in the second pipe structure 3 of the inlet distributor is detachably connected to the first pipe structure 1, and the second end of the first connecting pipe 31 is detachably connected to the diversion component 32, so that the inlet distributor can be disassembled and replaced in a timely manner when a partial failure occurs.

[0029] In some feasible embodiments, the first pipeline structure 1 includes a first flange 12, a second connecting pipe 13, and a second flange 14. The first flange 12, second connecting pipe 13, and second flange 14 can be manufactured separately. One end of the second connecting pipe 13 can be fixedly connected to the first flange 12 by welding, and the other end of the second connecting pipe 13 can also be fixedly connected to the second flange 14 by welding. The first end of the first connecting pipe 13 is detachably connected to the second flange 14. Some fasteners 4 pass through the corresponding assembly holes of the first flange 12 and the external gas-liquid material pipeline to fix the first flange 12 to the external gas-liquid material pipeline. Simultaneously, some fasteners 4 pass through the corresponding assembly flange of the second flange 14 and the reactor 2 to fix the second flange 14 to the reactor 2. The fasteners 4 can be, for example, bolts, thereby guiding the external gas-liquid material to the inlet distributor and into the reactor 2 through the inlet distributor. Furthermore, to meet the sealing requirements, annular sealing gaskets are provided between the first flange 12 and the external gas-liquid material pipeline, and between the second flange 14 and the assembly flange of the reactor 2.

[0030] It is understood that the above-mentioned method of manufacturing the first flange 12, the second connecting pipe 13 and the second flange 14 separately is illustrative. In other embodiments, the first flange 12, the second connecting pipe 13 and the second flange 14 can be integrally formed.

[0031] To facilitate the detachable connection of the second pipe structure 3 with the first pipe structure 1 and the diversion assembly 32, in some feasible embodiments, the first end of the first connecting pipe 31 can be constructed as a first annular flange 33, and the second end of the first connecting pipe 31 can be constructed as a second annular flange 34. The first annular flange 33 and the second annular flange 34 can be integrally formed with the first connecting pipe 31, or they can be manufactured separately from the first connecting pipe 31 and then fixedly connected to it by welding. The first annular flange 33 abuts against the flange face of the second flange 14 in the first pipe structure 1. The edge 33 is provided with multiple first mounting parts, and the flange surface of the second flange 14 is provided with a first mating part that mates with the first mounting parts. The first mounting parts and the first mating parts are detachably connected to detachably fix the first connecting pipe 31 to the second flange 14. In addition, the second annular flange 34 abuts against the diversion assembly 32. The second annular flange 34 is provided with a second mounting part, and the diversion assembly 32 is provided with a second mating part that mates with the second mounting parts. The first connecting pipe 31 and the diversion assembly 32 are detachably connected through the second mounting parts and the second mating parts. Thus, when the distributor is blocked or corroded and fails, the inlet distributor can be disassembled for replacement and maintenance.

[0032] In some feasible embodiments, the first mounting portion can be configured as a plurality of first mounting holes 331, which are spaced circumferentially around the center of rotation of the first annular flange 33, such as... Figure 2 As shown, there can be eight first mounting holes 331. The first mating part can be constructed as multiple first mating holes 11 on the flange surface of the second flange 14, each corresponding to one of the first mounting holes 331. Some fasteners 4 pass through the first mounting holes 331 and the first mating holes 11 to detachably connect the first connecting pipe 31 to the second flange 14. Similarly, the second mounting part is constructed as multiple second mounting holes 341, which are spaced circumferentially around the rotation center of the second annular flange 34. The second mating part is constructed as multiple second mating holes 321, each corresponding to one of the second mounting holes 341. Fasteners 4 pass through the second mounting holes 341 and the second mating holes 321 to detachably connect the first connecting pipe 31 to the diversion assembly 32.

[0033] It is understood that the above-described embodiments in which the first mounting part is configured as a plurality of first mounting holes 331 and the first mating part is configured as a plurality of first mating holes 11 are illustrative. In other embodiments, the first mounting part and the first mating part may have other structures, as long as the first connecting pipe 31 and the second flange 14 can be detachably and fixedly connected. Similarly, the embodiments in which the second mounting part is configured as a plurality of second mounting holes 341 and the second mating part is configured as a plurality of second mating holes 321 are also illustrative. In other embodiments, the second mounting part may have other structures, as long as the first connecting pipe 31 and the diversion assembly 32 can be detachably and fixedly connected.

[0034] To improve the stability of the connection between the first connecting pipe 31 and the second flange 14, in some feasible embodiments, multiple first mounting holes 331 are distributed around the rotation center of the first annular flange 33 and at equal angles in the circumferential direction. This allows the fastener 4 to pass through the first connecting pipe 31 and the second flange 14, resulting in a more uniform overall force distribution on the first connecting pipe 31 and the second flange 14, and a more stable connection between them.

[0035] To further improve the structural strength of the first annular flange 33 and the second annular flange 34, in some feasible embodiments, the inlet distributor also includes multiple first reinforcing plates 5 and multiple second reinforcing plates 6. The multiple first reinforcing plates 5 are circumferentially spaced between the first annular flange 33 and the first connecting pipe 31 around the rotation center of the first annular flange 33. The first reinforcing plates 5 can be constructed as trapezoids and are fixedly connected to the first annular flange 33 and the first connecting pipe 31 respectively, thereby increasing the structural strength of the first annular flange 33 and making the connection between the first connecting pipe 31 and the second flange 14 more stable. Similarly, the multiple second reinforcing plates 6 are circumferentially spaced between the second annular flange 34 and the first connecting pipe 31 around the rotation center of the second annular flange 34. The second reinforcing plates 6 can also be constructed as trapezoids and are fixedly connected to the second annular flange 34 and the first connecting pipe 31 respectively. In this way, the structural strength of the second annular flange 34 can be increased, making the connection between the first connecting pipe 31 and the diversion assembly 32 more stable.

[0036] In other possible implementations, the diversion assembly 32 includes a plurality of diversion elements 322 detachably connected in a first direction. Each diversion element 322 includes a first diversion hole 323 formed in the first direction and a plurality of second diversion holes formed in a second direction. Thus, when gas-liquid materials pass through, a portion of the gas-liquid materials is conveyed along the first direction through the first diversion hole 323, and a portion of the gas-liquid materials is conveyed along the second direction through the second diversion holes, thereby enabling the gas-liquid materials to be more dispersed in the reactor 2.

[0037] The diversion component 322 is constructed as an annular plate. The surface of the annular plate is provided with multiple first connecting holes 324 arranged around the central axis of the annular plate. The first connecting holes 324 are concentrically arranged with the second mating holes 321. An installation tube 325 is provided between the first connecting holes 324 of adjacent annular plates. Fasteners 4 pass through the first connecting holes 324, the installation tubes 325 and the second mating holes 321 to detachably connect the multiple annular plates to the second annular flange 34, so that the diversion component 32 can form a diversion in the first direction and the second direction, thereby improving the gas-liquid material dispersion capability and enabling the gas-liquid material to be more dispersed in the reactor 2.

[0038] It is understandable that the aforementioned installation pipe 325 can be constructed as a straight pipe of equal length. The length of the installation pipe 325 can be changed according to different working conditions. For example, when the gas-liquid material processing volume changes, different lengths of installation pipe 325 can be replaced to adjust the gap between the ring plates, thereby adapting to different working conditions.

[0039] Of course, the method of adjusting the gap between the ring plates by replacing the installation pipe 325 of different lengths when the gas-liquid material processing volume changes is illustrative. In other embodiments, the number of ring plates can be increased or decreased to adapt to various working conditions.

[0040] To further disperse the gas-liquid material in reactor 2, in some feasible embodiments, the inlet distributor also includes a diversion plate 7. The diversion plate 7 has second connection holes 71 that correspond one-to-one with the first connection holes 324 on the annular plate away from the second reinforcing plate 6. Fasteners 4 pass through the first connection holes 324 and the second connection holes 71 to detachably connect the diversion plate 7 to the annular plate away from the second reinforcing plate 6. The diversion plate 7 has a plurality of third diversion holes 72, with equal spacing between adjacent third diversion holes 72. Thus, by using fasteners 4 to detachably connect the diversion plate 7 to the annular plate by passing through the first connection holes 324 and the second connection holes 71, the gas-liquid material is diverted through the first diversion holes 323 and the second diversion holes in the diversion assembly 32. Part of the gas-liquid material passing through the first diversion holes 323 contacts the diversion plate 7 and flows into reactor 2 through the plurality of third diversion holes 72.

[0041] During installation of the inlet distributor, the first flange 12, the second connecting pipe 13, and the second flange 14 are first welded and fixed in sequence. Simultaneously, the first connecting pipe 31 is welded to the first annular flange 33, the second annular flange 34, the first reinforcing plate 5, and the second reinforcing plate 6 as a single unit. Some fasteners 4 pass through the first mounting hole 331 and the first mating hole 11 to detachably connect the first connecting pipe 31 to the second flange 14. Then, some fasteners 4 pass through the first connecting hole 324, the mounting pipe 325, the second mating hole 321, and the second connecting hole 71 to distribute the flow. Plate 7, multiple ring plates, and the second annular flange 34 are detachably and fixedly connected. Then, the assembled inlet distributor is placed into the opening of reactor 2. Some fasteners 4 pass through the second flange 14 and the corresponding assembly flange of reactor 2 to fix the second flange 14 to reactor 2. Simultaneously, some fasteners 4 pass through the assembly holes corresponding to the first flange 12 and the external gas-liquid material pipeline to fix the first flange 12 to the external gas-liquid material pipeline, thus completing the installation and allowing the external gas-liquid material to enter reactor 2 through the inlet distributor. During disassembly, the inlet distributor can be completely extracted, and then the relevant components can be repaired or replaced.

[0042] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0043] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0044] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. An inlet distributor, characterized in that, include: The first piping structure is used to connect the feed pipe and the reactor; and A second pipeline structure is provided inside the reactor. The second pipeline structure includes a first connecting pipe and a flow-diverting component. A first end of the first connecting pipe is detachably connected to the first pipeline structure, and a second end of the first connecting pipe is detachably connected to the flow-diverting component. The first end of the first connecting pipe is constructed as a first annular flange and the second end is constructed as a second annular flange. The first annular flange is provided with a plurality of first mounting parts, and the second annular flange is provided with a plurality of second mounting parts. The first pipe structure is provided with a first mating part that mates with the first mounting part, and the diversion component is provided with a second mating part that mates with the second mounting part. The first mounting part is connected to the first mating part, and the second mounting part is connected to the second mating part to detachably connect the first connecting pipe to the first pipe structure and the diversion component respectively. The shunt assembly includes a plurality of shunt components that are detachably connected in a first direction; The diverter is constructed as a ring plate. The surface of the ring plate is provided with a plurality of first connecting holes arranged around the central axis of the ring plate. The first connecting holes are arranged concentrically with the second mating holes. An installation tube is provided between the first connecting holes of adjacent ring plates. Fasteners pass through the first connecting holes and the second mating holes to detachably connect the plurality of ring plates to the second annular flange.

2. The inlet distributor according to claim 1, characterized in that, The first mounting portion is constructed with a plurality of first mounting holes, which are spaced circumferentially around the rotation center of the first annular flange. The first mating portion is constructed with a plurality of first mating holes corresponding one-to-one with the first mounting holes. Fasteners pass through the first mounting holes and the first mating holes to detachably connect the first connecting pipe to the first pipe structure; and / or The second mounting part is constructed as a plurality of second mounting holes, which are arranged circumferentially at intervals around the rotation center of the second annular flange. The second mating part is constructed as a plurality of second mating holes corresponding one-to-one with the second mounting holes. Fasteners pass through the second mounting holes and the second mating holes to detachably connect the first connecting pipe to the diversion assembly.

3. The inlet distributor according to claim 2, characterized in that, The plurality of the first mounting holes are distributed at equal angles around the rotation center of the first annular flange.

4. The inlet distributor according to claim 1, characterized in that, The first annular flange and the second annular flange are integrally formed with the first connecting pipe, or The first annular flange and the second annular flange are welded to the first connecting pipe.

5. The inlet distributor according to any one of claims 2-4, characterized in that, The inlet distributor also includes a plurality of first reinforcing plates and a plurality of second reinforcing plates. The plurality of first reinforcing plates are circumferentially spaced between the first annular flange and the first connecting pipe around the rotation center of the first annular flange. The first reinforcing plates are fixedly connected to the first annular flange and the first connecting pipe respectively. The plurality of second reinforcing plates are circumferentially spaced between the second annular flange and the first connecting pipe around the rotation center of the second annular flange. The second reinforcing plates are fixedly connected to the second annular flange and the first connecting pipe respectively.

6. The inlet distributor according to claim 5, characterized in that, The diverter includes a first diverter hole formed in a first direction and a plurality of second diverter holes formed in a second direction.

7. The inlet distributor according to claim 5, characterized in that, The inlet distributor also includes a diversion plate, which has second connection holes that correspond one-to-one with the first connection holes on the ring plate away from the second reinforcing plate. Fasteners pass through the first and second connection holes to detachably connect the diversion plate to the ring plate away from the second reinforcing plate. The diversion plate has a plurality of third diversion holes, and the spacing between two adjacent third diversion holes is equal.

8. The inlet distributor according to claim 1, characterized in that, The first pipeline structure includes a first flange, a second connecting pipe, and a second flange. One end of the second connecting pipe is fixedly connected to the first flange, and the other end of the second connecting pipe is fixedly connected to the second flange. The second flange is detachably connected to the first end of the first connecting pipe.

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