Catalytic rectification packed tower

Abstract

The utility model provides a catalytic rectification packed tower, which relates to the technical field of packed tower design and comprises a tower shell, a gas outlet pipeline is arranged at the top of the tower shell, a gas inlet pipeline is fixedly connected to one side, far away from a liquid inlet pipeline, of the tower shell, and a supporting grid plate is arranged in the tower shell. Supporting rods are connected to the interiors of the supporting grid plates, upper threaded blocks are arranged on the surfaces of the supporting rods, lower threaded blocks are arranged at the lower ends of the upper threaded blocks, and connecting blocks are fixedly connected to the surfaces of the fixing blocks. According to the utility model, by designing the structures such as the supporting rod and the upper threaded block, the upper threaded block and the lower threaded block rotate along the threads on the surface of the supporting rod, so that the height of the supporting grid plate between the upper threaded block and the lower threaded block is adjusted; the rectification device is suitable for rectification of catalysts with different dosages and fillers with different dosages, so that addition of the rectification catalysts and the fillers is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of packed tower design, in particular to a catalytic distillation packed tower. Background Art

[0002] The catalytic distillation packed tower is a reaction equipment that combines the catalyst and the distillation process. It adds a catalyst to the traditional distillation tower to achieve chemical reaction during the separation process. The catalytic distillation packed tower is mainly composed of a tower shell, a packing layer, and inlet and outlet pipes. The packing layer is usually composed of spherical or annular packings, which help to increase the surface area and mixing efficiency. Compared with the traditional distillation process, the catalytic distillation packed tower has higher efficiency and selectivity because it can achieve chemical reaction during the separation process, thereby reducing the subsequent processing steps. In addition, the use of catalysts can reduce temperature and pressure requirements, making the reaction more gentle and safe.

[0003] However, in the prior art, the support grids in the existing common packed towers are fixedly installed in the towers. When the required amounts of catalysts and fillers in the towers are not uniform, the distances between each support grid need to be changed differently. Otherwise, the amount of gas entering will be different, resulting in different degrees of reaction distillation, which will affect the accuracy of the final distillation material in the packed tower. Utility Model Content

[0004] The utility model aims to solve the defect in the prior art that the supporting grid plate is fixedly installed in the tower, which affects the accuracy of the final distillation material of the packed tower, and proposes a catalytic distillation packed tower.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a catalytic distillation packed tower, comprising a tower shell, a gas outlet pipe is arranged on the top of the tower shell, a liquid inlet pipe is fixedly connected to the surface of the tower shell, a liquid outlet pipe is arranged on the bottom of the tower shell, a gas inlet pipe is fixedly connected to the side of the tower shell away from the liquid inlet pipe, a support grid is arranged inside the tower shell, a support rod is connected inside the support grid, an upper threaded block is arranged on the surface of the support rod, a lower threaded block is arranged at the lower end of the upper threaded block, a fixed block is fixedly connected to the top of the support rod, and a connecting block is fixedly connected to the surface of the fixed block.

[0006] As a preferred embodiment, the surface of the support rod is provided with threads, and the bottom of the support rod is fixedly connected to the inside of the support grid.

[0007] The technical effect of adopting the above further scheme is that the threads set on the surface of the support rod can be threadedly connected to the upper thread block and the lower thread block, and at the same time the bottom of the support rod is fixedly connected to the inside of the lowest support grid, so that the two support rods can be fixed vertically.

[0008] As a preferred embodiment, the inner wall of the upper threaded block is provided with a thread groove, and the inner wall of the lower threaded block is also provided with a thread groove identical to that of the inner wall of the upper threaded block.

[0009] The technical effect of adopting the above further solution is that the upper thread block and the lower thread block are provided with the same thread groove inside, so that the upper thread block and the lower thread block can be threadedly connected with the surface of the support rod.

[0010] As a preferred embodiment, there are six supporting grids, each supporting grid is provided with circular holes on both sides, and the other five supporting grids are connected to the outer surface of the supporting rod through the circular holes provided on the surface.

[0011] The technical effect of adopting the above further solution is that the other five support grids are connected to the outer surface of the support rod through the circular holes arranged on the surface, so that the distance between each support grid can be adjusted and controlled.

[0012] As a preferred embodiment, the thread grooves formed on the inner walls of the upper thread block and the lower thread block are meshed with the threads formed on the outer surface of the support rod.

[0013] The technical effect of adopting the above further solution is that the thread groove between the upper thread block and the lower thread block engages with the thread on the surface of the support rod so that both the upper thread block and the lower thread block can be threadedly connected on the surface of the support rod.

[0014] As a preferred embodiment, there are two support rods, and the support rods are respectively connected to the circular holes opened on the two side surfaces of the support grid.

[0015] The technical effect of adopting the above further solution is that the two support rods are respectively connected to the inside of the support grid, so that the support grid maintains a connection balance on the surface of the support rods.

[0016] As a preferred implementation, a hollow groove is provided on the surface of the fixing block, and the tops of the two support rods are fixedly connected with a fixing block and a connecting block.

[0017] The technical effect of adopting the above further solution is: an empty groove is opened on the surface of the fixed block, and the fixed block and the connecting block are fixedly connected to the top of the two support rods, which is convenient for the user to remove the support grid and the support rods from the inside of the packing tower.

[0018] Compared with the prior art, the advantages and positive effects of the utility model are:

[0019] In the utility model, by designing structures such as a support rod and an upper threaded block, the upper threaded block and the lower threaded block are rotated counterclockwise, and the upper threaded block and the lower threaded block are rotated along the threads on the surface of the support rod, so that the height of the support grid plate between the upper threaded block and the lower threaded block can be adjusted. When each support grid plate is adjusted to a suitable position, a catalyst and a filler are added to the surface of the support grid plate for chemical reaction. The distance between the support grid plates is controlled by operating the support rod and the upper threaded block to adapt to distillation with different amounts of catalysts and different amounts of fillers, making the addition of distillation catalysts and fillers more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A stereoscopic diagram of a catalytic distillation packed tower provided by the utility model;

[0021] Figure 2 This is a three-dimensional diagram of the interior of a catalytic distillation packing tower provided by the utility model;

[0022] Figure 3 This is a disassembled stereogram of a catalytic distillation packed tower provided by the utility model;

[0023] Figure 4 A partial stereoscopic diagram of a catalytic distillation packed tower provided by the utility model.

[0024] Legend:

[0025] 1. Tower shell; 2. Gas outlet pipe; 21. Liquid inlet pipe; 3. Liquid outlet pipe; 31. Gas inlet pipe; 4. Support grid; 5. Support rod; 6. Upper threaded block; 61. Lower threaded block; 7. Fixed block; 71. Connecting block. DETAILED DESCRIPTION

[0026] 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.

[0027] Example 1

[0028] like Figure 1-Figure 4As shown, the utility model provides a technical solution: a catalytic distillation packed tower, comprising a tower shell 1, a gas outlet pipe 2 is arranged on the top of the tower shell 1, the gas outlet pipe 2 discharges the gas in the packed tower, a liquid inlet pipe 21 is fixedly connected to the surface of the tower shell 1, the liquid inlet pipe 21 injects a reaction reagent liquid into the inside of the packed tower to react with the catalyst and the packing, a liquid outlet pipe 3 is arranged at the bottom of the tower shell 1, the liquid injected into the packed tower through the liquid inlet pipe 21 reacts and then flows out from the inside of the liquid outlet pipe 3, and the tower shell 1 is away from the liquid inlet pipe 21. A gas inlet pipe 31 is fixedly connected to one side, and the reaction gas enters from the inside of the gas inlet pipe 31 at the bottom of the packed tower, gradually moves upward from the gap between the catalyst and the filler, and is discharged from the inside of the gas outlet pipe 2. A support grid 4 is arranged inside the tower shell 1. There are six support grids 4. Circular holes are arranged on both sides of each support grid 4, and the other five support grids 4 are connected to the outer surface of the support rod 5 through the circular holes arranged on the surface. At the same time, a plurality of slots are opened on the surface of the support grid 4 to facilitate the contact between the catalyst and the filler with the reaction liquid and the reaction gas.

[0029] In this embodiment, by designing the support grid 4 and the support rod 5, circular holes are opened on the surfaces of both sides of the support grid 4, and the inside of the circular holes is smooth so that they can slide freely up and down on the surface of the support rod 5, so that the distance between each support grid 4 can be adjusted according to the actual amount of catalyst and filler used, and then the upper threaded block 6 and the lower threaded block 61 are used to fix the support grid 4.

[0030] Example 2

[0031] like Figure 1-Figure 4 As shown, the interior of the support grid plate 4 is connected with a support rod 5, there are two support rods 5, and the support rods 5 are respectively connected to the circular holes opened on the surfaces of both sides of the support grid plate 4, the surface of the support rod 5 is provided with a thread, and the bottom of the support rod 5 is fixedly connected to the interior of the support grid plate 4, so as to facilitate the removal of each support grid plate 4, and the surface of the support rod 5 is provided with an upper thread block 6, the inner wall of the upper thread block 6 is provided with a thread groove, and the inner wall of the lower thread block 61 is also provided with a thread groove same as the inner wall of the upper thread block 6, the lower end of the upper thread block 6 is provided with a lower thread block 61, the upper thread block 6 The threaded groove on the inner wall of the lower threaded block 61 meshes with the thread set on the outer surface of the support rod 5, so that the upper threaded block 6 and the lower threaded block 61 can be threadedly connected on the surface of the support rod 5. At the same time, a support grid plate 4 is arranged between the upper threaded block 6 and the lower threaded block 61. The top of the support rod 5 is fixedly connected with a fixing block 7, and the surface of the fixing block 7 is fixedly connected with a connecting block 71. An empty groove is opened on the surface of the fixing block 7, and the tops of the two support rods 5 are fixedly connected with the fixing block 7 and the connecting block 71, which is convenient for the user to quickly remove the support grid plate 4 and the support rod 5 from the inside of the packed tower.

[0032] In this embodiment, by designing structures such as the upper threaded block 6 and the connecting block 71, the upper threaded block 6 and the lower threaded block 61 are rotated on the outer surface of the support rod 5, and then the support grid plate 4 between the upper threaded block 6 and the lower threaded block 61 is moved. After the position of the support grid plate 4 is determined, the upper threaded block 6 and the lower threaded block 61 are rotated in reverse to fix the support grid plate 4 on the surface of the support rod 5. At the same time, an empty groove is opened on the surface of the fixing block 7, which is convenient for the user to take out the support grid plate 4 and the support rod 5 from the inside of the packing tower, fill the catalyst and filler, or clean the dirt on the support grid plate 4 and the support rod 5.

[0033] Working principle:

[0034] like Figure 1-Figure 4 As shown, by designing structures such as the support rod 5 and the upper threaded block 6, the upper threaded block 6 and the lower threaded block 61 are rotated counterclockwise, and the threaded grooves arranged on the inner walls of the upper threaded block 6 and the lower threaded block 61 are rotated along the threads on the surface of the support rod 5, so that the support grid plate 4 between the upper threaded block 6 and the lower threaded block 61 is adjusted in height. When each support grid plate 4 is adjusted to a suitable position, the upper threaded block 6 and the lower threaded block 61 are rotated in the opposite direction, so that the support grid plate 4 between the upper threaded block 6 and the lower threaded block 61 is fixedly connected to the surface of the support rod 5, and then the actual amount of catalyst and filler used are added to the surface of the support grid plate 4 for chemical reaction and distillation. After the packing tower has been used for a period of time, the connecting block 71 is grasped with both hands, and the support grid plate 4 and the support rod 5 are taken out of the inside of the packing tower as a whole for cleaning or re-packing operation.

[0035] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A catalytic distillation packed tower, comprising a tower shell (1), characterized in that: The top of the tower shell (1) is provided with a gas outlet pipeline (2), the surface of the tower shell (1) is fixedly connected with a liquid inlet pipeline (21), the bottom of the tower shell (1) is provided with a liquid outlet pipeline (3), a side of the tower shell (1) away from the liquid inlet pipeline (21) is fixedly connected with a gas inlet pipeline (31), a support grid plate (4) is provided inside the tower shell (1), a support rod (5) is connected inside the support grid plate (4), an upper threaded block (6) is provided on the surface of the support rod (5), a lower threaded block (61) is provided at the lower end of the upper threaded block (6), a fixed block (7) is fixedly connected to the top of the support rod (5), and a connecting block (71) is fixedly connected to the surface of the fixed block (7); The inner wall of the upper threaded block (6) is provided with a thread groove, and the inner wall of the lower threaded block (61) is also provided with a thread groove identical to that of the inner wall of the upper threaded block (6); There are six supporting grid plates (4), each supporting grid plate (4) is provided with circular holes on both sides, and the other five supporting grid plates (4) are connected to the outer surface of the supporting rod (5) through the circular holes provided on the surface.

2. A catalytic distillation packed tower according to claim 1, characterized in that: The surface of the support rod (5) is provided with threads, and the bottom of the support rod (5) is fixedly connected to the inside of the support grid plate (4).

3. A catalytic distillation packed tower according to claim 1, characterized in that: The thread grooves provided on the inner walls of the upper thread block (6) and the lower thread block (61) mesh with the threads provided on the outer surface of the support rod (5).

4. A catalytic distillation packed tower according to claim 1, characterized in that: There are two support rods (5), and the support rods (5) are respectively connected to the circular holes opened on the two side surfaces of the support grid plate (4).

5. A catalytic distillation packed tower according to claim 1, characterized in that: The surface of the fixing block (7) is provided with an empty groove, and the tops of the two support rods (5) are fixedly connected to the fixing block (7) and the connecting block (71).

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