Gas-liquid self-distribution filler plate

Abstract

The utility model relates to the technical field of chemical separation, and discloses a gas-liquid self-distribution filler plate which comprises a metal foil film, openings are formed in the metal foil film, a gas exchange area is arranged in the metal foil film, gas-liquid distribution areas are arranged at the two ends of the metal foil film, flow guide lines are arranged in the gas-liquid distribution areas, and the flow guide lines are arranged in the gas-liquid distribution areas. Vertical lines are arranged inside the metal foil film, a plurality of openings are formed in a rectangular array, the thickness of the metal foil film is 0.1-0.5 m, and the length of the gas-liquid distribution area is 10-20 mm, the width of the gas-liquid distribution area is 1-3 mm, and the thickness of the gas-liquid distribution area is 1-3 mm. According to the utility model, the metal foil film, the gas exchange area, the gas-liquid distribution area and the vertical lines are matched, so that the effect of improving the gas-liquid distribution uniformity is achieved, and adverse effects such as non-uniform gas-liquid distribution caused by adverse behaviors such as gas-liquid retention, transverse displacement and surging on the contact surface of the upper and lower fillers are avoided; and the uniformity of the gas-liquid self-distribution filler plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical separation, in particular to a gas-liquid self-distributing filler plate. Background Art

[0002] Gas-liquid self-distributing packing plates are a key equipment used in chemical and petrochemical processes. They are mainly used for the distribution and contact of gas and liquid to improve mass transfer and reaction efficiency. This type of packing plate is widely used in various tower equipment, such as distillation towers, absorption towers and scrubbing towers.

[0003] The raw materials used for the packing plate are generally metal foil materials with a thickness of 0.1 to 0.4 mm. Before rolling the large corrugations of the packing, the surface of the metal foil material should be pressed with transverse fine lines and regular concave and convex lines to increase the metal strength while increasing the liquid holding capacity, surface wettability, and gas-liquid exchange ratio of the packing. At present, this processing method is mostly used for metal plate corrugated packing. During many years of use, it was found that the contact surface of the upper and lower packing layers had gas-liquid retention, lateral displacement, panting and other undesirable behaviors, resulting in undesirable consequences such as uneven gas-liquid distribution, and reducing the overall separation efficiency of the packing tower.

[0004] Therefore, there is an urgent need in the prior art for a gas-liquid self-distributing filler plate that can solve the above-mentioned undesirable morphology by changing the geometric shape of the metal foil during the processing. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a gas-liquid self-distributing filler plate, which aims to improve the contact surface between the upper and lower fillers, and to prevent gas-liquid retention, lateral displacement, gasping and other undesirable behaviors, which cause adverse consequences such as uneven gas-liquid distribution.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gas-liquid self-distributing filler plate, comprising a metal foil membrane, the metal foil membrane is provided with openings inside, a gas exchange area is arranged inside the metal foil membrane, gas-liquid distribution areas are arranged at both ends of the metal foil membrane, guide lines are arranged inside the gas-liquid distribution area, and vertical lines are arranged inside the metal foil membrane.

[0007] As a further description of the above technical solution:

[0008] A plurality of openings are arranged in a rectangular array.

[0009] As a further description of the above technical solution:

[0010] The thickness of the metal foil film is 0.1 to 0.5 μm.

[0011] As a further description of the above technical solution:

[0012] The gas-liquid distribution area has a length of 10 to 20 mm, a width of 1 to 3 mm, and a thickness of 1 to 3 mm.

[0013] As a further description of the above technical solution:

[0014] The gas-liquid distribution areas are symmetrically arranged at both ends of the metal foil membrane.

[0015] The utility model has the following beneficial effects:

[0016] In the utility model, firstly, the effect of improving the uniformity of gas-liquid distribution is achieved through the coordination between the metal foil membrane, the gas exchange area, the gas-liquid distribution area and the vertical lines. The contact surface of the upper and lower fillers causes gas-liquid retention, lateral displacement, panting and other undesirable behaviors, resulting in undesirable consequences such as uneven gas-liquid distribution, thereby improving the uniformity of the gas-liquid self-distribution filler plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a gas-liquid self-distributing filler plate proposed by the utility model;

[0018] Figure 2 A side view of a gas-liquid self-distributing filler plate proposed by the utility model;

[0019] Figure 3 The utility model provides a schematic diagram of the local structure of the flow-guiding pattern of a gas-liquid self-distribution packing plate.

[0020] Legend:

[0021] 1. Metal foil membrane; 2. Gas exchange area; 3. Gas-liquid distribution area; 4. Openings; 5. Vertical lines; 6. Flow guide lines. DETAILED DESCRIPTION

[0022] 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.

[0023] Reference Figure 1-3, the utility model provides an embodiment: a gas-liquid self-distributing packing plate, comprising a metal foil membrane 1, characterized in that: an opening 4 is provided inside the metal foil membrane 1, a gas exchange area 2 is provided inside the metal foil membrane 1, gas-liquid distribution areas 3 are provided at both ends of the metal foil membrane 1, a flow guide pattern 6 is provided inside the gas-liquid distribution area 3, a vertical pattern 5 is provided inside the metal foil membrane 1, a plurality of openings 4 are arranged in a rectangular array, the metal foil membrane 1 has a thickness of 0.1 to 0.5 m, the gas-liquid distribution area 3 has a length of 10 to 20 mm, a width of 1 to 3 mm, and a thickness of 1 to 3 mm, and the gas-liquid distribution areas 3 are symmetrically arranged at both ends of the metal foil membrane 1;

[0024] Specifically, first, vertical lines 5 are pressed in the middle area of ​​the surface of the metal foil membrane 1. These vertical lines 5 can be fine lines or regular concave-convex lines, which not only increase the roughness of the packing surface, but also provide more channels and areas for gas-liquid exchange. The area where these vertical lines 5 are located is called the gas exchange area 2, which is the main place for gas-liquid exchange in the packing tower. In addition to the gas exchange area 2, researchers also pressed vertical and regular flow guide lines at both ends of the metal foil membrane 1. The length of these flow guide lines is usually between 10 and 20 mm, the width is 1 to 3 mm, and the thickness is 1 to 3 mm. The presence of these flow guide lines enables the gas-liquid mixture in the packing layer to flow along the direction of the flow guide lines to achieve gas-liquid self-distribution. In this way, the gas-liquid mixture can reach the gas-liquid distribution area 3 of the next layer of packing evenly and quickly, avoiding the situation where the local gas-liquid concentration is too high or too low, thereby improving the mass transfer efficiency of the packing tower. The advantage of this composite pattern geometric structure is that it makes full use of the space on the surface of the metal foil membrane 1, and realizes the dual functions of gas-liquid exchange and self-distribution through reasonable layout and design. Compared with traditional packing, this structure not only increases the gas-liquid contact area, but also makes the flow of the gas-liquid mixture in the packing layer more uniform and stable, thereby improving the overall performance of the packed tower.

[0025] Working principle: When using a gas-liquid self-distributing packing plate, vertical lines 5 are pressed in the middle area of ​​the surface of the metal foil membrane 1. The vertical lines 5 are fine lines or regular concave-convex lines. The area where the vertical lines 5 are located is the gas exchange area 2. Vertical and regular guide lines with a length of 10 to 20 mm, a width of 1 to 3 mm, and a thickness of 1 to 3 mm are pressed at both ends of the metal foil membrane 1. This area is the gas-liquid distribution area 3, so that the gas and liquid in the packing layer in the packing tower can be self-distributed through the vertical guide lines and reach the gas-liquid distribution area 3 of the next layer of packing evenly and quickly. This structure forms a composite pattern geometric structure of gas-liquid self-distribution of metal plate corrugated packing.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas-liquid self-distributing packing plate, comprising a metal foil membrane (1), characterized in that: The metal foil membrane (1) has an opening (4) inside, a gas exchange area (2) inside, a gas-liquid distribution area (3) at both ends of the metal foil membrane (1), a flow guide pattern (6) inside the gas-liquid distribution area (3), and vertical patterns (5) inside the metal foil membrane (1).

2. A gas-liquid self-distributing packing plate according to claim 1, characterized in that: A plurality of openings (4) are arranged in a rectangular array.

3. A gas-liquid self-distributing packing plate according to claim 1, characterized in that: The thickness of the metal foil film (1) is 0.1 to 0.5 μm.

4. A gas-liquid self-distributing filler plate according to claim 1, characterized in that: The gas-liquid distribution area (3) has a length of 10 to 20 mm, a width of 1 to 3 mm, and a thickness of 1 to 3 mm.

5. A gas-liquid self-distributing packing plate according to claim 1, characterized in that: The gas-liquid distribution areas (3) are symmetrically arranged at both ends of the metal foil membrane (1).

Images