Large packed column

Abstract

This utility model belongs to the field of packed tower technology, and relates to a packed tower, including a packed tower body. Several sections of packing are evenly distributed along the axial direction within the inner cavity of the packed tower body. Distributors are respectively installed between adjacent sections of packing. The key feature is that a vertically extending through-column is installed within the inner cavity of the packed tower body. The two ends of the through-column are fixed to the upper and lower ends of the inner wall of the packed tower body, respectively, and the through-column penetrates the gas slot of the distributor. The lower end of the through-column is fixed to the inner cavity of the packed tower body by a support base. A manhole is provided on the side wall of the packed tower body, corresponding to the space between adjacent sections of packing. This utility model has a reasonable product structure. By installing a vertically extending through-column within the large tower and penetrating the gas slot of the distributor, it achieves gas distribution within the packed tower without affecting its operation, thus saving energy.

Description

Technical Field

[0001] This invention belongs to the field of packed tower technology and relates to a large packed tower for gas-liquid separation. Background Technology

[0002] Distillation columns are primary equipment used for liquid-liquid separation, gas-liquid separation, and gas separation. Distillation columns are mainly divided into two categories: plate columns and packed columns. Packed columns are further divided into structured packed columns and random packed columns. Commonly used structured packed columns typically have a diameter of a few meters. The internal structure of a packed column mainly consists of different types of packing material plus various gas-liquid redistributors. Each layer of packing is supported by a grid at the bottom, and a pressure ring is installed on top of the packing to prevent gas from blowing it away. Distributors are installed on top of the packing and fixed by the column wall. Each section of packing is about 3 meters high. The entire column contains multiple sections of packing and distributors of varying numbers to achieve product separation. The function of the packing is to increase the surface area of ​​the liquid, making it easier for the gas to evaporate, while the function of the distributor is to collect, mix, and redistribute all the liquid from the upper and lower sections.

[0003] With the iterative development of technology, the trend towards larger packed towers is to improve separation efficiency. How to provide a large packed tower with high separation efficiency and low energy consumption is a technical problem that the industry urgently needs to solve. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a large packed tower. By incorporating a through-column inside the tower body, this packed tower ensures structural stability for towers with diameters exceeding 4 meters, effectively improves separation efficiency, and does not affect gas distribution.

[0005] According to the technical solution of the present invention: a large packed tower includes a packed tower body, in which multiple sections of packed material and distributors are arranged in sections within the inner cavity of the packed tower body. The bottom of the packed material is supported by a grid, the top of the packed material is covered by a pressure ring, and the distributor is supported by a support beam. The characteristic feature is that at least one set of through-column assemblies is provided within the packed tower body, the lower end of the through-column assembly is supported on the lower inner wall of the packed tower body, and the through-column assembly penetrates the gas slot and the packed material of the distributor.

[0006] The through-column assembly includes a support column and multiple sequentially connected column sections, with the bottommost column section connected to the support column. The two ends of the support beam are fixed to the inner walls of the column sections and the packing tower body, respectively.

[0007] As a further improvement of the present invention, the support column is fixed to the inner cavity of the packed tower body by a support seat.

[0008] As a further improvement of the present invention, a manhole is provided on the side wall of the packed tower body.

[0009] As a further improvement of the present invention, the grid is fixed to the inner wall of the packed tower body.

[0010] As a further improvement of the present invention, an air inlet pipe communicating with the inner cavity is provided at the lower part of the packed tower body.

[0011] As a further improvement of the present invention, the supporting column is connected to the corresponding section column and to two adjacent section columns by connecting plugs.

[0012] As a further improvement of the present invention, the support beam is supported by clips welded on the column body, and the clips are fixed to the support beam by bolts.

[0013] The technical advantages of this invention are as follows: The product structure of this invention is reasonable. By setting a vertically extending column inside the large tower and passing the column through the gas slot of the distributor, the gas distribution of the packed tower can be achieved without affecting the packing tower, thus saving energy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is a schematic diagram showing the connection between the sky pillar assembly and the supporting beam.

[0016] Figure 3 This is a schematic diagram of the structure of the through-hole distributor. Detailed Implementation

[0017] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0019] Figure 1-3 The structure includes the packed tower body 1, the through-tower column assembly 2, the section column 201, the support column 202, the connecting plug 203, the support base 3, the manhole 4, the grid 5, the air inlet pipe 6, the packing 7, the distributor 8, the clamp 9, the gas tank 10, the support beam 11, etc.

[0020] like Figure 1-3As shown, the present invention is a large packed tower, including a packed tower body 1. Multiple sections of packed material 7 and a distributor 8 are arranged in sections within the inner cavity of the packed tower body 1. The bottom of the packed material 7 is supported by a grid 5, which is fixed to the inner wall of the packed tower body 1. The top of the packed material 7 is covered by a pressure ring to prevent gas from blowing the packed material away. The distributor 8 is supported by a support beam. At least one set of through-column assemblies 2 is arranged inside the packed tower body 1. The lower end of the through-column assembly 2 is supported on the lower inner wall of the packed tower body 1. The through-column assembly 2 penetrates the gas slot 10 of the distributor 8 and the packed material 7.

[0021] The through-column assembly 2 includes a support column 202 and multiple sequentially connected column sections 201, wherein the bottommost column section 201 is connected to the support column 202, and the two ends of the support beam 11 are fixed to the column section 201 and the inner wall of the packed tower body 1, respectively. The dimensions and model of the through-column assembly 2 are calculated according to the specific tower body specifications.

[0022] The support column 202 is fixed to the inner cavity of the packed tower body 1 by the support seat 3.

[0023] Manhole 4 is provided on the side wall of the packed tower body 1.

[0024] The grid 5 is fixed to the inner wall of the packed tower body 1.

[0025] An air inlet pipe 6 is provided at the lower part of the packed tower body 1, which is connected to the inner cavity, and an air outlet is provided at the top of the packed tower body 10.

[0026] The support column 202 is connected to the corresponding section column and to two adjacent section columns 201 via connecting plugs 203.

[0027] The support beam 11 is supported by the clips 9 welded on the column section 201, and the clips 9 are fixed to the support beam 11 by bolts.

[0028] like Figure 2 As shown, the bottom line of the distributor 8 is also the upper plane of the grid 5.

[0029] like Figure 1-3As shown, packed towers are developing towards larger towers. In towers with a diameter of 4 meters or more, the through-pillar assembly 2 is used, and the number of through-pillars 12 is determined by the tower diameter. Currently, the world's largest tower diameter reaches 20 meters, and the maximum spacing of the through-pillar assemblies 2 can be around 3.5 meters. A packed tower with a diameter of 4 meters can use only one through-pillar. Since the through-pillar bears part of the supporting force, it can effectively reduce the height of the grid 5. That is, even after the height of the grid 5 is reduced, the purpose of reliable support can still be achieved. The load-bearing capacity can be calculated based on the data of a 3-meter tower diameter, which can greatly reduce the material and tower height. In use, this application does not affect the separation efficiency of the tower. It is understood that the distributor 8 used in this application is a tray-type liquid collection and redistribution device with a height of less than 300 mm. In specific practice, for packed towers with a tower diameter in the range of 4-7 meters, one through-pillar assembly can meet the usage requirements; for towers with a diameter of more than 7 meters, four through-pillar assemblies are installed in the tower.

[0030] Each section of packing 7 is approximately 3 meters high. Multiple sections of varying numbers are packed throughout the tower to achieve product separation. The function of packing 7 is to increase the surface area of ​​the liquid, facilitating gas evaporation. The function of distributor 8 is to collect, mix, and redistribute all the liquid from the upper and lower sections.

[0031] For towers with a diameter of four meters or more, the height of the grid 5 is already quite large. A support beam with a certain height and width is installed below the distributor 8 to provide reliable and stable support for it. This beam directly obstructs liquid distribution and increases the height. This application addresses this by installing a continuous column within the tower body to bear part of the load, thereby effectively reducing the height of the grid 5 and the support beam, and ultimately reducing the overall height of the tower. The continuous column is installed in sections, connecting one section at a time from the bottom of the tower to the highest layer. Thus, a grid 5 with a four-meter diameter can be calculated with the strength of a 2-meter diameter grid. By using the continuous column to bear part of the load, the height of the grid 5 can be effectively reduced. According to this solution, for towers with a diameter of 4-7 meters, simply installing one continuous column in the middle completely solves the problem. This has three advantages: saving raw materials, reducing the overall tower height, and improving the separation efficiency of the tower.

[0032] During operation: The feed gas enters from the bottom of the tower and undergoes gas-liquid separation through the packing 7 and the liquid redistributor 8. Utilizing the difference in boiling points of the media in the feed gas, the packing surface expands, making it easy for the lighter components to be converted into gas and discharged from the top of the tower. After cooling, it becomes the finished product. The unevaporated liquid is collected by the liquid redistributor 8, redistributed downwards, and then the lighter components are converted into gas again through the surface of the packing 7 and discharged upwards.

[0033] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A large packed tower, comprising a packed tower body (1), wherein multiple sections of grouped packing (7) and a distributor (8) are arranged in sections within the inner cavity of the packed tower body (1), wherein the bottom of the packing (7) is supported by a grid (5), the top of the packing (7) is covered by a pressure ring, and the distributor (8) is supported by a support beam; characterized in that: At least one set of through-column assembly (2) is provided inside the packed tower body (1). The lower end of the through-column assembly (2) is supported on the lower inner wall of the packed tower body (1). The through-column assembly (2) penetrates the gas trough (10) of the distributor (8) and the packing (7). The Tongtian Column Assembly (2) includes a support column (202) and multiple sequentially connected column sections (201), wherein the bottommost column section (201) is connected to the support column (202), and the two ends of the support beam (11) are fixed to the column section (201) and the inner wall of the packing tower body (1), respectively.

2. The large packed tower as described in claim 1, characterized in that: The support column (202) is fixed to the inner cavity of the packed tower body (1) by the support seat (3).

3. The large packed tower as described in claim 1, characterized in that: Manholes (4) are provided on the side walls of the packed tower body (1).

4. The large packed tower as described in claim 1, characterized in that: The grid (5) is fixed to the inner wall of the packed tower body (1).

5. The large packed tower as described in claim 1, characterized in that: The lower part of the packed tower body (1) is provided with an air inlet pipe (6) that connects to the inner cavity.

6. The large packed tower as described in claim 1, characterized in that: The supporting column (202) is connected to the corresponding section column and to two adjacent section columns (201) respectively by connecting plugs (203).

7. The large packed tower as described in claim 6, characterized in that: The support beam (11) is supported by a clip (9) welded on the column section (201), and the clip (9) is fixed to the support beam (11) by bolts.

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