A novel random packing structure

Abstract

The application provides a novel bulk packing structure, which comprises a supporting disc, a ventilation hole is formed in the supporting disc, a supporting leg is arranged on the inner side of the ventilation hole, and a top plate is arranged on the top of the supporting leg; the top plate arranged on the supporting leg is in a convex mode, which increases the surface area of the bulk packing, thereby improving the separation effect of the bulk packing; the application has a simple structure, is integrally rolled, and only needs simple punching and bending on the original metal plate, so that the production and manufacturing cost is low.

Description

Technical Field

[0001] This application relates to the field of random packing technology in distillation columns, specifically to a novel random packing structure. Background Technology

[0002] The prerequisite for the green and low-carbon development of the chemical industry is the need for more efficient distillation or absorption tower equipment. The performance of the tower depends on the continuous optimization and development of its internal structure. Random packing is an important type of packing that plays a crucial role in ensuring production efficiency, especially in terms of improving efficiency, preventing clogging, and reducing resistance. Therefore, the form and structure of advanced packing are also the focus of research by scientific researchers and engineers.

[0003] Currently, the main structural forms of random packing include Pall rings, stepped rings, and rectangular saddle rings, each with its own advantages and disadvantages. Different types of random packing can be selected depending on the working conditions. However, traditional random packing structures suffer from complex design, high production costs, and susceptibility to clogging. To overcome this clogging issue, our company has developed a random packing, as disclosed in application number 202021238023.3, which discloses a stepped random packing and a closed stepped random packing. This random packing includes a solid top plate and multiple sets of perforated annular plates. The top plate and the annular plates are coaxially arranged and stepped along the axial direction. In this invention, the top plate and the annular plates are stepped along their axial direction, meaning the top plate and the multiple sets of annular plates are layered along their axial direction. Furthermore, the perforated annular plates increase gas and liquid throughput. The multiple annular plates and the top plate form a cavity with one end relatively closed, increasing the specific surface area of ​​the packing.

[0004] Although the above-mentioned applications can increase the specific surface area of ​​the packing and increase the gas and liquid throughput, the structure is still relatively complex and the production cost is relatively high. Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0005] This application provides a novel random packing structure, including a support plate, on which vent holes are provided, and support legs are provided inside the vent holes, with a top plate provided on the top of the support legs.

[0006] As a preferred embodiment, the shape of the vent hole is the projection shape of the top plate and the support leg on the support plate.

[0007] As a preferred embodiment, the support plate is any shape selected from the following: circular, square, elliptical, heart-shaped, plum blossom-shaped, and irregular.

[0008] As a preferred embodiment, the top plate includes a middle component, with at least two baffles disposed on the outer side of the middle component, and the supporting legs disposed between adjacent baffles.

[0009] As a preferred embodiment, the projection shape of the spoiler blades on the support plate is any one of the following: arc, circle, triangle, rhombus, rectangle, ellipse, clover shape, racetrack shape, and diamond shape.

[0010] As a preferred option, the width of the support leg is smaller than the minimum width between adjacent spoiler blades.

[0011] As a preferred embodiment, the support leg is inclined, and the angle between the support leg and the support plate is 20°–80°.

[0012] As a preferred option, the novel random packing structure is integrally rolled.

[0013] As a preferred option, the included angle between adjacent spoiler blades is 90°–120°.

[0014] As a preferred embodiment, the spoiler blade includes a blade connection portion connected to the middle component of the top plate, the blade connection portion being connected to the blade disturbance portion, and the blade disturbance portion being connected to the blade tip.

[0015] The top plate of this utility model is set on the support leg. The top plate is raised to increase the surface area of ​​the loose packing, thereby improving the separation effect of the loose packing. The structure of this application is simple and it is rolled in one piece. It only requires simple punching and bending on the original metal plate, so the production cost is low. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure from one angle of Embodiment 1 of this application;

[0017] Figure 2 This is a structural schematic diagram from angle two of Embodiment 1 of this application;

[0018] Figure 3 This is a schematic diagram of the structure from angle three of Embodiment 1 of this application;

[0019] Figure 4 This is a partial structural schematic diagram of Embodiment 2 of this application;

[0020] 1. Support plate; 2. Vent hole; 3. Support leg; 4. Top plate; 5. Middle part of top plate; 6. Deflector blade; 7. Transition arc; 8. Blade connection part; 9. Blade disturbance part; 10. Blade tip; 11. Through hole. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1 To be continued Figure 4 The specific embodiments of this utility model will be described in detail below. It should be noted that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0022] Example 1:

[0023] This embodiment provides a novel random packing structure, including a support plate 1. The support plate 1 is circular in shape and has ventilation holes 2. Support legs 3 are inclinedly arranged on the inner side of the ventilation holes 2. Preferably, the angle between the support legs 3 and the support plate 1 is 20°–80°. A top plate 4 is provided on the top of the support legs 3. The top plate 4 increases the surface area of ​​the random packing, thereby improving the separation effect of the random packing. The top plate 4 can be arc-shaped or flat; the technician can choose according to the specific situation. In this embodiment, an arc shape is used. The shape of the ventilation holes 2 is the projection shape of the top plate 4 and the support legs 3 on the support plate 1. There is a gap between the top plate 4 and the support plate 1, and the arrangement of the support legs 3 makes the gap between the top plate 4 and the support plate 1 larger, reducing the blockage of the random packing and lowering the cleaning difficulty. Preferably, the support plate 1, the large ventilation holes 2, the support legs 3, and the top plate 4 are integrally rolled and formed, which can be achieved by simple punching and bending on a metal plate. Therefore, the manufacturing cost is low.

[0024] The top plate 4 includes a top plate intermediate component 5. At least two baffle blades 6 are arranged on the outer side of the top plate intermediate component 5. Support legs 3 are arranged between adjacent baffle blades 6. In this embodiment, the top plate intermediate component 5 is approximately annular in projection. Three baffle blades 6 are arranged on the outer side of the top plate intermediate component 5. The included angle between adjacent baffle blades 6 is preferably 90 degrees to 120 degrees. A transition arc 7 is provided within the included angle, and the support legs 3 are arranged within the transition arc 7. At least one support leg 3 is provided; in this embodiment, three are provided. The width of the support leg 3 is less than the minimum width of the transition arc 7. The vertical height of the support leg 3 from the top of the support plate 1 to the connection point with the baffle blade 6 is 2-15 mm. In this embodiment, the baffle blade 6 includes a blade connecting part 8 connected to the top plate intermediate component 5. The blade connecting part 8 and the blade... The blade disturbance part 9 is connected to the blade tip 10. The blade connecting part 8, the blade disturbance part 9, and the blade tip 10 are integrally formed. In the projection of the blade connecting part 8, the blade disturbance part 9, and the blade tip 10 on the support plate 1, the maximum width of the blade disturbance part 9 is greater than the maximum width of the blade connecting part 8 and the blade tip 10. The maximum width of the blade connecting part 8 can be equal to the maximum width of the blade tip 10, or it can be greater than or less than the maximum width of the blade tip 10. There is no specific limitation. As long as the width of the blade disturbance part 9 is maximized, in this embodiment, the projection shape of the turbulence blade 6 and the support leg 3 on the support plate 1 is approximately "plum blossom shape", that is, the shape of the vent hole 2 is approximately "plum blossom shape". Furthermore, in order to improve the mass transfer efficiency, a through hole 11 is provided on the middle component 5 of the top plate.

[0025] The gas in the distillation column passes through the vent 2, encounters the turbulence blades 6, and flows outward through the gaps between the support legs 3. The kinetic energy factor decreases, resulting in a lower pressure drop compared to traditional random packing. After the gas exits the vent 2, the vertical momentum is converted into lateral momentum, thus reducing mist entrainment. The raised top plate 4 increases the surface area of ​​the random packing, thereby improving the separation effect of the random packing.

[0026] Example 2:

[0027] The difference between this embodiment and Embodiment 1 is that, as Figure 4 As shown, the deflector blade 6 in this embodiment is projected as an arc shape on the support disk 1. The deflector blade in this embodiment is arc-shaped.

[0028] The random packing material of this application is widely used in gas and liquid reactors, distillation columns, absorption columns, drying columns, and other equipment. In use, the packing material is filled into the corresponding equipment, consistent with existing technology, and is briefly described below: It is divided into wet-packing and dry-packing types.

[0029] Wet packing: The equipment is first filled with water (or process liquid), and then the packing material of this application is packed in. This packing method has a larger and more uniform bed porosity, and at the same time can prevent damage to the packing rings caused by collisions between fragile packing materials.

[0030] Dry packing: The packing material is directly stacked on the support plate. It is widely used for packing both metal and plastic packing materials. Dry packing is simpler than wet packing, but the bed porosity is lower. Dry packing can be divided into single-layer random packing, double-layer random packing, multi-layer random packing, and block + random packing methods. Single-layer random packing involves evenly scattering the packing material on the surface of the support plate to form a thin packing layer. Single-layer random packing is suitable for situations with low gas flow rates and low mass and heat transfer requirements; double-layer random packing... Double-layer random packing involves adding another layer of packing material on top of a single-layer random packing material. This can further improve mass transfer, heat transfer, and mass transfer efficiency. Multi-layer random packing involves dividing the packing material into multiple thin layers and stacking them layer by layer on the surface of the support plate. This increases the contact area of ​​the packing material and improves mass transfer, heat transfer, and mass transfer efficiency. Block + random packing involves adding blocks between the packing materials to form a block + random packing method. The blocks can increase the channels between the packing layers, which is beneficial for the uniform distribution and flow of gas.

[0031] This application has the following advantages:

[0032] (1) In the field of high-efficiency metal random packing, the problems of small voids and throughput, large pressure drop, poor mass transfer effect, large material consumption and high cost of the high-efficiency metal random packing itself in the prior art are solved; the random packing of this application also helps to avoid uneven flow or blockage in pipelines or reactors, and ensures that reactants can pass through the reaction zone smoothly.

[0033] (2) The vent hole can alleviate the impact force on the support plate, thus making it suitable for occasions with large liquid volume.

[0034] (3) The combination of the support legs and the top plate forms a raised structure, which reduces the clogging of the loose packing and the difficulty of cleaning the loose packing. It has a higher space utilization rate in a unit space, reduces the gaps between each loose packing, and reduces the mass transfer dead zone.

[0035] (4) The raised structure provides better gas-liquid channels and mass transfer surfaces, which allows the liquid to be well dispersed into a film. The packing surface is easily wetted by the liquid, increasing the specific surface area of ​​gas-liquid contact, improving the reaction effect, making mass transfer more uniform, and further improving the heat and mass transfer efficiency, thus realizing the reactive distillation process well. It can help improve the flow distribution of gas, liquid or solid in the reactor, reduce dead zones, increase the overall fluid throughput, and optimize the working state of the reactor.

[0036] (5) This application has a simple structure and can be rolled into shape in one piece by simple punching and bending on the metal plate, resulting in low production and manufacturing costs. In addition, the metal has pressure resistance and corrosion resistance, which can meet the requirements of different processes.

[0037] (6) The random packing of this application has a high porosity, which facilitates the passage and diffusion of fluid, and the gaps between the packings are conducive to the uniform distribution and flow of gas.

[0038] In summary, the random packing of this application can replace the structured packing, eliminate gas short-circuiting in the structured packing, increase the contact opportunities and time between gas, liquid and the catalyst, improve the gas-liquid mass and heat transfer efficiency, and also improve the liquid distribution and gas flow resistance reduction.

[0039] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.

[0040] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, the various possible combinations in this application will not be described separately.

[0041] Furthermore, various different implementations of this application can be combined in any way, as long as they do not violate the spirit of this application, and such combinations should also be regarded as the content disclosed in this application.

Claims

1. A novel random packing structure, characterized in that, It includes a support plate (1), a vent hole (2) is provided on the support plate (1), a support leg (3) is provided on the inner side of the vent hole (2), and a top plate (4) is provided on the top of the support leg (3).

2. The novel random packing structure according to claim 1, characterized in that, The shape of the vent (2) is the projection shape of the top plate (4) and the support leg (3) on the support plate (1).

3. The novel random packing structure according to claim 1, characterized in that, The support plate (1) can be any shape, such as round, square, oval, heart-shaped, or plum blossom-shaped.

4. The novel random packing structure according to claim 1, characterized in that, The top plate (4) includes a top plate middle component (5), and at least two baffle blades (6) are provided on the outer side of the top plate middle component (5), and the support leg (3) is provided between adjacent baffle blades (6).

5. A novel random packing structure according to claim 4, characterized in that, The projection shape of the spoiler blade (6) on the support plate (1) is any one of the following: arc, circle, triangle, rhombus, rectangle, ellipse, clover shape, racetrack shape, and rhomboid shape.

6. The novel random packing structure according to claim 4, characterized in that, The width of the support leg (3) is less than the minimum width between adjacent spoiler blades (6).

7. A novel random packing structure according to claim 4, characterized in that, The included angle between adjacent spoiler blades (6) is 90°–120°.

8. A novel random packing structure according to claim 4, characterized in that, The turbulence blade (6) includes a blade connection part (8) connected to the middle part (5) of the top plate, and the blade connection part (8) is connected in sequence to the blade disturbance part (9) and the blade tip (10).

9. A novel random packing structure according to claim 1, characterized in that, The support leg (3) is inclined, and the angle between the support leg (3) and the support plate (1) is 20° to 80°.

10. A novel random packing structure according to claim 1, characterized in that, The support plate (1), ventilation hole (2), support leg (3), and top plate (4) are integrally rolled.

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