Supporting structure of alkylation reactor catalytic bed

Abstract

The utility model discloses a supporting structure of an alkylation reactor catalytic bed, which comprises a reactor main body, a mounting ring table, a catalytic bed body and a central column. In the using process of the supporting structure, an annular sealing rubber ring on the surface of a mounting rubber block can be clamped into a corresponding annular clamping groove; the stable state of the mounting rubber block and the Johnson net rack is greatly enhanced, meanwhile, the sealing state between the mounting rubber block and the mounting ring table can be guaranteed through the arrangement of the annular sealing rubber ring, waste of a catalyst is reduced, high-viscosity lubricating oil can be blocked by the outer side of the Johnson net rack, the high-viscosity lubricating oil is kept in an inclined clamping groove, and therefore the stability of the Johnson net rack is improved. The bottom of the friction rubber block can make full contact with the high-viscosity lubricating oil, due to the fact that the viscosity of the high-viscosity lubricating oil is high, the adsorption viscosity of the attaching area of the friction rubber block and the inner wall of the inclined clamping groove can be further enhanced, and therefore the sealing state between the mounting rubber block and the mounting ring table is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of catalytic bed supports for alkylation reactors, in particular to a supporting structure for a catalytic bed for an alkylation reactor. Background Art

[0002] The reaction in the alkylation reactor is carried out under the action of a catalyst. The catalyst is divided into two forms: solid and liquid. The liquid catalyst is usually an acidic ionic liquid. The alkylation reactor is a key equipment in the liquid phase production device. Two intermediate partition heads are set in the reactor, and the reactor is divided into three pressure chambers. 2 to 3 sections of catalyst are set in each pressure chamber, and the other sections need to be equipped with a separate support structure. According to the process operation requirements, the separately set support structure consists of a Johnson mesh, a distribution orifice plate and a support grid, and the three layers are stacked on the support ring and the support beam. Except for the catalyst section directly supported on the bottom head and the intermediate partition head, the other sections need to be equipped with a separate support structure.

[0003] In the prior art, a support structure for a catalytic bed of an alkylation reactor disclosed in publication number "CN218573617U" includes a reactor body, a guide block fixedly connected to the upper end of the fixed block, and a lifting limit handle fixedly connected to the upper end of the guide block, a threaded block fixedly connected to the outer wall of the Johnson net and the support frame, and a hole is provided on the support frame, a fixed plate fixedly connected to the upper end of the rotating block, and sweeping brushes fixedly connected to both sides of the lower end of the fixed plate, and a locking knob is installed on the fixed block. The Johnson net and the support frame of the support structure of the catalytic bed of the alkylation reactor can be adjusted by lifting and lowering through the fixed block, the lifting groove and the guide block, and can be pushed and pulled by the lifting limit handle, and can be locked and fixed by the locking knob, and the Johnson net and the support frame can be spirally fixed and installed through the threaded block, which is convenient and stable to install, does not take up space, and has a more compact structure, and the sweeping brush is convenient to quickly sweep with the Johnson net, and can be removed and used at any time, which is more convenient.

[0004] However, the existing technology still has major deficiencies, such as:

[0005] In the above device and prior art:

[0006] 1. The Johnson net and the support frame are fixedly installed by the screw block spiral, which increases the installation and disassembly steps. The screw block spiral is easily corroded by the catalyst (sulfonic acid or hydrofluoric acid) in the alkylation reactor, which makes the replacement of the catalyst bed inconvenient;

[0007] 2. The simple use of threaded block spiral fixed installation is not only easily affected by the catalyst, but also cannot ensure the sealing of the catalyst bed area and the reactor stratification area. As a result, during the catalytic process, the catalyst escapes outward through the gap area of ​​the threaded block installation structure, causing catalyst waste and increasing the catalytic cost of the catalyst bed. Utility Model Content

[0008] The utility model aims to provide a supporting structure for a catalyst bed of an alkylation reactor to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a supporting structure of a catalyst bed of an alkylation reactor, comprising a reactor body, a mounting ring, a catalyst bed body and a central column, wherein the mounting ring is installed in the internal cavity of the reactor body, the catalyst bed body is arranged in the central area of ​​the mounting ring, and the central column is arranged through the central area of ​​the catalyst bed body;

[0010] A catalyst bed installation structure, which is arranged in the installation ring area and is used for quickly installing and disassembling the catalyst bed body;

[0011] The catalyst bed support structure is arranged at the bottom area of ​​the central column, and is used to support the bottom of the catalyst bed when the catalyst bed is in use to prevent the central area of ​​the catalyst bed from sinking.

[0012] Preferably, the catalytic bed mounting structure includes a mounting rubber block, the surface of the mounting ring is provided with an oblique groove, the inner wall of the oblique groove is provided with annular grooves at intervals, the mounting rubber block is inserted into the oblique groove, the outer surface of the mounting rubber block is provided with an annular sealing rubber ring, the annular sealing rubber ring is inserted into the annular groove, a Johnson grid is installed on the inner wall of the mounting rubber block, the catalytic bed body is arranged in the Johnson grid, liquid storage holes are opened on the bottom of the oblique groove, the liquid storage holes are arranged at intervals into several groups, a positioning rod is provided at the bottom of the mounting rubber block, and the positioning rod is inserted into the liquid storage hole.

[0013] Preferably, the liquid storage hole is filled with mineral oil.

[0014] Preferably, the mineral oil can be selected as a high-viscosity lubricating oil.

[0015] Preferably, the catalytic bed support structure includes a support arm, a mounting groove is provided in the bottom area of ​​the central column, a mounting rod is installed inside the mounting groove, one end of the support arm is rotatably sleeved on the surface of the mounting rod, and the other end of the support arm is provided with a receiving groove, limit plates are installed on both sides of the receiving groove, a limit rod is installed between adjacent limit plates, a rotating plate is rotatably sleeved on the limit rod, and torsion springs are installed at both ends of the limit rod, and both ends of the torsion spring are respectively fixed to the limit plate and one side of the rotating plate, and an extension arm is installed at one end of the rotating plate.

[0016] Preferably, an inner groove is provided at one end of the extension arm, a rotating rod is installed in the inner groove, and a supporting guide wheel is installed on the surface of the rotating rod.

[0017] Preferably, a strip-shaped groove is arranged on the outer side of the limiting plate, and the width of one end of the strip-shaped groove is greater than the width of the other end of the strip-shaped groove.

[0018] Preferably, a sliding rubber rod is slidably installed in the strip-shaped groove, a fitting limit plate is installed adjacent to the top of the sliding rubber rod, and the bottom of the fitting limit plate is movably fitted with the rotating plate.

[0019] Preferably, a magnetic adsorption plate is installed on one side of the top of the support arm, and the magnetic adsorption plate is fixed to the fitting limit plate by magnetic attraction.

[0020] Preferably, a friction rubber block is provided at the bottom of the installation rubber block, the positioning plug rod is installed at the bottom of the friction rubber block, and the bottom of the friction rubber block is in contact with the high-viscosity lubricating oil.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. During the installation of the rubber block, the annular sealing rubber ring on the surface of the rubber block will be stuck in the corresponding annular groove, which greatly enhances the stability of the rubber block and the Johnson grid. At the same time, the setting of the annular sealing rubber ring can ensure the sealing state between the rubber block and the mounting ring, reduce catalyst waste, and reduce the catalytic cost of the catalyst bed;

[0023] 2. The outside of the Johnson grid will block the high-viscosity lubricating oil, so that the high-viscosity lubricating oil will remain in the oblique groove. The bottom of the friction rubber block will fully contact with the high-viscosity lubricating oil. Due to the high viscosity of the high-viscosity lubricating oil, it will further enhance the adsorption viscosity of the friction rubber block and the inner wall of the oblique groove, thereby further enhancing the sealing state between the mounting rubber block and the mounting ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the overall schematic diagram of the device of the utility model;

[0025] Figure 2This is a schematic diagram of the overall explosion state of the device of the utility model;

[0026] Figure 3 It is a schematic diagram of the central column part of the utility model;

[0027] Figure 4 It is a schematic diagram of the extension arm part of the utility model;

[0028] Figure 5 For the utility model Figure 4 A magnified schematic diagram of part A;

[0029] Figure 6 This is a schematic diagram of the main part of the reactor in the utility model;

[0030] Figure 7 For the utility model Figure 6 Enlarged schematic diagram of part B;

[0031] Figure 8 It is a schematic diagram of the installation ring platform part in the utility model.

[0032] In the figure: 1. Reactor body; 2. Mounting ring; 21. Oblique slot; 22. Liquid storage hole; 23. Annular slot; 25. Mounting rubber block; 26. Annular sealing rubber ring; 27. Friction rubber block; 28. Positioning plug rod; 29. ​​Johnson grid; 3. Catalytic bed; 4. Center column; 41. Mounting slot; 411. Mounting rod; 42. Support arm; 43. Storage slot; 44. Limit plate; 441. Strip slot; 442. Sliding rubber rod; 45. Fitting limit plate; 46. Limit rod; 461. Torsion spring; 47. Rotating plate; 48. Magnetic adsorption plate; 5. Extension arm; 51. Inner groove; 52. Rotating rod; 53. Support guide wheel. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figure 1-8 , the utility model provides a technical solution:

[0035] Embodiment 1: A supporting structure of a catalyst bed of an alkylation reactor: comprising a reactor body 1, a mounting ring platform 2, a catalyst bed body 3 and a central column 4, wherein the mounting ring platform 2 is mounted in the inner cavity of the reactor body 1, the catalyst bed body 3 is arranged in the central area of ​​the mounting ring platform 2, and the central column 4 is arranged through the central area of ​​the catalyst bed body 3;

[0036] Catalytic bed installation structure, which is arranged in the installation ring 2 area and is used for rapid installation and removal of the catalytic bed body 3;

[0037] The catalytic bed installation structure includes an installation rubber block 25, an installation ring 2 is provided with an oblique groove 21 on the surface, an annular groove 23 is provided at intervals on the inner wall of the oblique groove 21, the installation rubber block 25 is inserted into the oblique groove 21, an annular sealing rubber ring 26 is installed on the outer surface of the installation rubber block 25, the annular sealing rubber ring 26 is inserted into the annular groove 23, a Johnson grid 29 is installed on the inner wall of the installation rubber block 25, the catalytic bed body 3 is arranged in the Johnson grid 29, a liquid storage hole 22 is opened on the bottom of the oblique groove 21, the liquid storage holes 22 are arranged in a plurality of groups at intervals, a positioning rod 28 is provided at the bottom of the installation rubber block 25, and the positioning rod 28 is inserted into the liquid storage hole 22;

[0038] The liquid storage hole 22 is filled with mineral oil;

[0039] The mineral oil may be selected as a high viscosity lubricating oil;

[0040] In this embodiment, when in use, the catalytic bed body 3 is installed in the installation rubber block 25 through the Johnson grid 29, and the installation rubber block 25 is installed in the oblique slot 21. One side of the inner wall of the oblique slot 21 is set to be inclined. When the installation rubber block 25 is clamped by external force, it will be firmly clamped in the oblique slot 21 and cannot be separated. During the installation of the installation rubber block 25, the annular sealing rubber ring 26 on the surface of the installation rubber block 25 will be clamped into the corresponding annular slot 23, which greatly enhances the stability of the installation rubber block 25 and the Johnson grid 29. At the same time, the setting of the annular sealing rubber ring 26 can ensure the sealing state between the installation rubber block 25 and the installation ring 2, reduce catalyst waste, and reduce the catalytic cost of the catalytic bed.

[0041] The catalyst bed support structure is arranged at the bottom area of ​​the central column 4, and is used to support the bottom of the catalyst bed 3 when the catalyst bed 3 is in use, so as to prevent the central area of ​​the catalyst bed 3 from sinking;

[0042] The catalyst bed support structure includes a support arm 42, a mounting groove 41 is provided at the bottom area of ​​the central column 4, a mounting rod 411 is installed inside the mounting groove 41, one end of the support arm 42 is rotatably sleeved on the surface of the mounting rod 411, and a receiving groove 43 is provided at the other end of the support arm 42, and limit plates 44 are installed on both sides of the receiving groove 43, and a limit rod 46 is installed between adjacent limit plates 44, and a rotating plate 47 is rotatably sleeved on the limit rod 46, and torsion springs 461 are installed at both ends of the limit rod 46, and the two ends of the torsion spring 461 are respectively fixed to the limit plate 44 and one side of the rotating plate 47, and an extension arm 5 is installed at one end of the rotating plate 47;

[0043] An inner groove 51 is provided at one end of the extension arm 5, a rotating rod 52 is installed in the inner groove 51, and a supporting guide wheel 53 is installed on the surface of the rotating rod 52;

[0044] A strip groove 441 is disposed on the outer side of the limiting plate 44, and the width of one end of the strip groove 441 is greater than the width of the other end of the strip groove 441;

[0045] A sliding rubber rod 442 is slidably installed in the strip groove 441, and a fitting limit plate 45 is installed on the top of the adjacent sliding rubber rod 442, and the bottom of the fitting limit plate 45 is movably fitted with the rotating plate 47;

[0046] A magnetic adsorption plate 48 is installed on one side of the top of the support arm 42, and the magnetic adsorption plate 48 is magnetically fixed to the fitting limit plate 45;

[0047] A friction rubber block 27 is provided at the bottom of the installation rubber block 25, and a positioning plug rod 28 is installed at the bottom of the friction rubber block 27, and the bottom of the friction rubber block 27 is in contact with the high-viscosity lubricating oil;

[0048] In this embodiment, when the installation rubber block 25 is continuously inserted into the oblique slot 21, the friction rubber block 27 and the positioning rod 28 at the bottom of the installation rubber block 25 will slowly insert into the liquid storage hole 22. As the positioning rod 28 is continuously inserted into the liquid storage hole 22, the high-viscosity lubricating oil in the liquid storage hole 22 will be squeezed out by the positioning rod 28 and overflow into the oblique slot 21. The outer side of the Johnson grid 29 will block the high-viscosity lubricating oil, so that the high-viscosity lubricating oil remains in the oblique slot 21. The bottom of the friction rubber block 27 will fully contact with the high-viscosity lubricating oil. Due to the high viscosity of the high-viscosity lubricating oil, the adsorption viscosity of the friction rubber block 27 and the inner wall of the oblique slot 21 will be further enhanced, thereby further enhancing the sealing state between the installation rubber block 25 and the installation ring 2.

[0049] Working principle: During the use of the device, the catalytic bed body 3 is installed in the installation rubber block 25 through the Johnson grid 29, and the installation rubber block 25 is installed in the oblique card slot 21. One side of the inner wall of the oblique card slot 21 is set to be inclined. When the installation rubber block 25 is clamped by external force, it will be firmly clamped in the oblique card slot 21 and cannot be separated. During the installation of the installation rubber block 25, the annular sealing rubber ring 26 on the surface of the installation rubber block 25 will be clamped into the corresponding annular card slot 23, which greatly enhances the stability of the installation rubber block 25 and the Johnson grid 29. At the same time, the setting of the annular sealing rubber ring 26 can ensure the sealing state between the installation rubber block 25 and the installation ring 2, reduce catalyst waste, and reduce the catalytic cost of the catalytic bed;

[0050] When the installation rubber block 25 is continuously inserted into the oblique slot 21, the friction rubber block 27 and the positioning rod 28 at the bottom of the installation rubber block 25 will be slowly inserted into the liquid storage hole 22. As the positioning rod 28 is continuously inserted into the liquid storage hole 22, the high-viscosity lubricating oil in the liquid storage hole 22 will be squeezed out by the positioning rod 28 and overflow into the oblique slot 21. The outer side of the Johnson grid 29 will block the high-viscosity lubricating oil, so that the high-viscosity lubricating oil remains in the oblique slot 21. The bottom of the friction rubber block 27 will fully contact with the high-viscosity lubricating oil. Due to the high viscosity of the high-viscosity lubricating oil, the adsorption viscosity of the friction rubber block 27 and the inner wall of the oblique slot 21 will be further enhanced, thereby further enhancing the sealing state between the installation rubber block 25 and the installation ring 2.

[0051] When the installation rubber block 25 is installed, the extension arm 5 is lowered through the rotating plate 47. Under the action of a group of torsion springs 461, the extension arm 5 is firmly supported in the reducing connection area of ​​the inner cavity of the reactor body 1 through the support guide wheel 53. The four groups of extension arms 5 support the bottom of the central column 4 from multiple directions, which can avoid the problem of sinking in the central area of ​​the catalytic bed 3 in the central column 4 area during use. When the extension arm 5 is unfolded, the fitting limit plate 45 is installed on the top of the rotating plate 47 to keep the rotating plate 47 locked, thereby further enhancing the supporting and stabilizing effect of the extension arm 5.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A support structure for a catalyst bed of an alkylation reactor, characterized in that: The invention comprises a reactor body (1), a mounting ring platform (2), a catalytic bed (3) and a central column (4), wherein the mounting ring platform (2) is mounted in the inner cavity of the reactor body (1), the catalytic bed (3) is arranged in the central area of ​​the mounting ring platform (2), and the central column (4) is arranged through the central area of ​​the catalytic bed (3); A catalytic bed installation structure, the catalytic bed installation structure is arranged in the area of ​​the installation ring platform (2) and is used for quickly installing and disassembling the catalytic bed body (3); A catalytic bed support structure, wherein the catalytic bed support structure is arranged in the bottom area of ​​the central column (4) and is used to support the bottom of the catalytic bed (3) when the catalytic bed (3) is in use, so as to prevent the central area of ​​the catalytic bed (3) from sinking.

2. The supporting structure of the catalyst bed of an alkylation reactor according to claim 1, characterized in that: The catalytic bed installation structure comprises a mounting rubber block (25), the surface of the mounting ring platform (2) is provided with an oblique groove (21), the inner wall of the oblique groove (21) is provided with an annular groove (23), the mounting rubber block (25) is inserted into the oblique groove (21), the outer surface of the mounting rubber block (25) is provided with an annular sealing rubber ring (26), the annular sealing rubber ring (26) is inserted into the annular groove (23), a Johnson grid (29) is installed on the inner wall of the mounting rubber block (25), the catalytic bed body (3) is arranged in the Johnson grid (29), the bottom of the oblique groove (21) is provided with liquid storage holes (22), the liquid storage holes (22) are arranged in a plurality of groups, the bottom of the mounting rubber block (25) is provided with a positioning rod (28), the positioning rod (28) is inserted into the liquid storage hole (22).

3. The supporting structure of the catalytic bed of an alkylation reactor according to claim 2, characterized in that: The liquid storage hole (22) is filled with mineral oil.

4. The supporting structure of the catalytic bed of an alkylation reactor according to claim 3, characterized in that: The mineral oil can be selected as high-viscosity lubricating oil.

5. The supporting structure of the catalytic bed of an alkylation reactor according to claim 4, characterized in that: The catalytic bed support structure comprises a support arm (42), a mounting groove (41) is provided at the bottom area of ​​the central column (4), a mounting rod (411) is installed inside the mounting groove (41), one end of the support arm (42) is rotatably sleeved on the surface of the mounting rod (411), and the other end of the support arm (42) is provided with a receiving groove (43), limiting plates (44) are installed on both sides of the receiving groove (43), a limiting rod (46) is installed between adjacent limiting plates (44), a rotating plate (47) is rotatably sleeved on the limiting rod (46), and torsion springs (461) are installed at both ends of the limiting rod (46), and the two ends of the torsion spring (461) are respectively fixed to the limiting plate (44) and one side of the rotating plate (47), and an extension arm (5) is installed at one end of the rotating plate (47).

6. The supporting structure of the catalytic bed of an alkylation reactor according to claim 5, characterized in that: An inner groove (51) is provided at one end of the extension arm (5), a rotating rod (52) is installed in the inner groove (51), and a supporting guide wheel (53) is installed on the surface of the rotating rod (52).

7. The supporting structure of the catalyst bed of an alkylation reactor according to claim 5, characterized in that: A strip-shaped groove (441) is arranged on the outer side of the limiting plate (44), and the width of one end of the strip-shaped groove (441) is greater than the width of the other end of the strip-shaped groove (441).

8. The supporting structure of the catalyst bed of an alkylation reactor according to claim 7, characterized in that: A sliding rubber rod (442) is slidably installed in the strip groove (441), and a fitting limit plate (45) is installed adjacent to the top of the sliding rubber rod (442), and the bottom of the fitting limit plate (45) is movably fitted with the rotating plate (47).

9. The supporting structure of the catalyst bed of an alkylation reactor according to claim 8, characterized in that: A magnetic adsorption plate (48) is installed on one side of the top of the support arm (42), and the magnetic adsorption plate (48) is fixed to the fitting limit plate (45) by magnetic attraction.

10. The supporting structure of the catalyst bed of an alkylation reactor according to claim 4, characterized in that: A friction rubber block (27) is arranged at the bottom of the installation rubber block (25), the positioning plug rod (28) is installed at the bottom of the friction rubber block (27), and the bottom of the friction rubber block (27) is in contact with the high-viscosity lubricating oil.

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