Gas-liquid separation device and absorption tower
By using a perforated plate and alternating liquid-blocking components to form a gap structure in the absorption tower, the problem of upper liquid leakage into the lower layer is solved, achieving uniform absorption of waste gas and improving mass transfer efficiency. The structure is simple and low in cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广东鹏锦智能装备股份有限公司
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-02
AI Technical Summary
In existing absorption towers, the upper layer of liquid easily leaks into the lower layer, leading to uneven concentration distribution and reduced gas-liquid phase mass transfer efficiency.
The gap structure formed by the perforated plate and the alternating arrangement of the first and second liquid blocking elements prevents the backflow of the upper liquid and discharges it outward through the first channel, allowing the exhaust gas to pass through evenly.
It achieves uniform absorption of waste gas in the upper treatment zone, prevents liquid from leaking into the lower layer, improves gas-liquid phase mass transfer efficiency, and has a simple structure and low cost.
Smart Images
Figure CN224308121U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of exhaust gas treatment technology, and in particular to a gas-liquid separation device and an absorption tower. Background Technology
[0002] Absorption towers are devices used for absorption operations and are commonly used in waste gas treatment. Currently, conventional absorption towers typically have two layers, with the upper and lower layers using liquids to absorb the waste gas. Simple ventilation is usually implemented between the upper and lower layers to allow the waste gas in the lower layer to move upwards. However, the liquid in the upper layer can easily fall into the lower layer, leading to poor recovery efficiency. For example, the concentration of the waste gas absorbed by the liquid in the upper layer may be lower than that absorbed by the liquid in the lower layer; leakage can cause uneven concentration distribution within the tower; or leakage can cause some liquid to flow directly to the lower tray without effective mass transfer, reducing the gas-liquid mass transfer efficiency, etc.
[0003] Therefore, there is a need for a gas-liquid separation prevention and absorption tower that can prevent the upper liquid from leaking into the lower layer. Utility Model Content
[0004] Therefore, it is necessary to provide a gas-liquid separation device and an absorption tower, the specific technical solution of which is as follows.
[0005] A gas-liquid separation device, characterized in that it comprises:
[0006] The first tube has a channel extending axially in the middle.
[0007] A perforated plate, forming a ring coaxially arranged with the first tube body, is connected to the top of the first tube body; the perforated plate is provided with multiple air vents.
[0008] A liquid-blocking assembly is located above a perforated plate. The liquid-blocking assembly includes a first liquid-blocking element and a second liquid-blocking element. The first liquid-blocking element includes a first channel extending along a first direction, and a plurality of first liquid-blocking elements are arranged above the perforated plate along a second direction, with a first gap formed between adjacent first liquid-blocking elements. The second liquid-blocking element includes a second channel extending along the first direction, and a plurality of second liquid-blocking elements are arranged along the second direction and overturned above the first liquid-blocking element, so that the second liquid-blocking elements block the first gap, and a second gap is formed between the inner wall of the first channel and the inner wall of the second channel. The first direction is perpendicular to the second direction. The first liquid-blocking element and the second liquid-blocking element respectively extend beyond the outer wall of the perforated plate.
[0009] Furthermore, the first channel and / or the second channel are U-shaped.
[0010] Furthermore, the first liquid blocking component and / or the second liquid blocking component are formed by bending a plate, so that the outer contour of the first liquid blocking component and / or the second liquid blocking component is also U-shaped.
[0011] Furthermore, a second tube is arranged around the outside of the first tube; the first tube and the second tube are connected by a connecting plate, so that a liquid collection area is formed between the first tube and the second tube.
[0012] Furthermore, the end of the first tube away from the liquid-blocking component is connected to the connecting plate.
[0013] Furthermore, the liquid blocking component is connected to the perforated plate via a support post, forming a third gap between the liquid blocking component and the perforated plate.
[0014] Furthermore, the first liquid-blocking component and the second liquid-blocking component are connected by a connecting post.
[0015] An absorption tower includes a tower body, wherein the following are arranged sequentially from bottom to top within the tower body:
[0016] Waste liquid recycling area;
[0017] Air inlet;
[0018] First-level processing area;
[0019] Primary demister;
[0020] The gas-liquid separation device is fitted to the inner wall of the tower to isolate the liquid flow;
[0021] Second-level processing area;
[0022] Secondary demister;
[0023] Air vent.
[0024] Furthermore, the first-layer processing area includes spray pipes.
[0025] Furthermore, the second-layer processing area includes packing material.
[0026] Beneficial effects: The gas-liquid separation device and absorption tower provided by this utility model allow waste gas to pass through evenly through the first gap and second gap formed by the mesh plate, the first liquid blocking element, and the second liquid blocking element, thereby ensuring that the waste gas is more uniform in the upper treatment zone and ensuring the absorption effect of the upper layer; at the same time, the alternating arrangement of the first liquid blocking element and the liquid blocking element will prevent the backflow of the upper liquid, allowing the upper liquid to flow into the first guide channel and be discharged out of the mesh plate through the first channel; thus achieving the effect of preventing the leakage of the upper liquid and allowing the lower waste gas to pass through evenly, and the overall structure is simple and low in cost. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the gas-liquid separation device.
[0029] Figure 2 This is a cross-sectional view of the gas-liquid separation device;
[0030] Figure 3 for Figure 2 Enlarged view of region A in the middle;
[0031] Figure 4 This is a schematic diagram showing the connection between the first liquid blocking component and the second liquid blocking component;
[0032] Figure 5 This is a schematic diagram of an absorption tower.
[0033] Explanation of reference numerals in the attached drawings: 1. First tube body; 2. Mesh plate; 3. Liquid blocking assembly; 4. Second tube body;
[0034] 21. Ventilation holes;
[0035] 31. First liquid blocking component; 32. Second liquid blocking component; 33. First channel; 34. Second channel; 35. First gap; 36. Second gap; 37. Support column; 38. Third gap; 39. Connecting column;
[0036] 41. Liquid collection area; 42. Connecting plate;
[0037] 100. Tower body; 101. Waste liquid recovery area; 102. Air inlet; 103. Spray pipe; 104. Primary demister; 105. Gas-liquid separation device; 106. Packing; 107. Secondary demister; 108. Air outlet. Detailed Implementation
[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0039] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0042] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0043] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0044] Example 1
[0045] Reference Figure 1 and Figure 2 As shown, this embodiment provides a gas-liquid separation device 105, including a first tube 1, a perforated plate 2, and a liquid blocking component 3. A channel extending along the axial direction is formed in the middle of the first tube 1, which is mainly used to accommodate the passage of exhaust gas. Specifically, the perforated plate 2 forms a ring coaxially arranged with the first tube 1, and is connected to the top of the first tube 1 as an extension of the first tube 1, so that the inner and outer walls of the perforated plate 2 coincide with the inner and outer walls of the first tube 1; the perforated plate 2 is provided with a plurality of vent holes 21, which are evenly arranged on the perforated plate 2, allowing the exhaust gas passing through the first tube 1 to pass through the vent holes 21.
[0046] Specifically, refer to Figure 2 As shown, the liquid-blocking component 3 is located above the perforated plate 2 and covers the entire perforated plate 2. The liquid-blocking component 3 includes a first liquid-blocking element 31 and a second liquid-blocking element 32; see reference. Figure 3 As shown, the first liquid-blocking component 31 includes a first channel 33 extending along a first direction. Multiple first liquid-blocking components 31 are arranged above the perforated plate 2 along a second direction, with a first gap 35 formed between adjacent first liquid-blocking components 31. This first gap 35 can accommodate the passage of exhaust gas. The second liquid-blocking component 32 includes a second channel 34 extending along a first direction. Multiple second liquid-blocking components 32 are arranged along the second direction and inverted above the first liquid-blocking component 31, so that the second liquid-blocking components 32 block the first gap 35. A second gap 36 is formed between the inner wall of the first channel 33 and the inner wall of the second channel 34. The first liquid-blocking component 31 is in an upward-facing state, and the second liquid-blocking component 32 is in a downward-facing state. By blocking the first gap 35 with the second liquid-blocking component 32, liquid can be prevented from leaking downwards through the first gap 35. The second gap 36 can accommodate the passage of exhaust gas, facilitating uniform mixing of the exhaust gas with the upper absorption structure and ensuring the absorption effect of the exhaust gas. The first direction is perpendicular to the second direction; the first liquid blocking element 31 and the second liquid blocking element 32 extend beyond the outer wall of the perforated plate 2. By extending beyond the outer wall of the perforated plate 2, the upper layer leakage can be completely blocked, and the accumulated liquid in the first channel 33 can be discharged outward through the end.
[0047] It should be noted that the first tube body 1 and the perforated plate 2 can be a rectangular ring structure, a circular ring structure, or other irregular ring structures.
[0048] The gas-liquid separation device 105 and absorption tower provided by this utility model allow waste gas to pass through evenly through the first gap 35 and the second gap 36 formed by the mesh plate 2, the first liquid blocking element 31, and the second liquid blocking element 32, thereby ensuring that the waste gas is more uniform in the upper treatment zone and ensuring the absorption effect of the upper layer. At the same time, the alternating arrangement of the first liquid blocking element 31 and the liquid blocking element will prevent the backflow of the upper liquid, allowing the upper liquid to flow into the first guide channel and be discharged out of the mesh plate 2 through the first channel 33. This achieves the effect of preventing the upper liquid from leaking and allowing the lower waste gas to pass through evenly, and the overall structure is simple and low in cost.
[0049] Specifically, the first channel 33 and / or the second channel 34 are U-shaped, or the first channel 33 and the second channel 34 can be set as V-shaped or other U-shaped forms.
[0050] Specifically, the first liquid blocking component 31 and / or the second liquid blocking component 32 are formed by bending a plate, so that the outer contours of the first liquid blocking component 31 and / or the second liquid blocking component 32 are also U-shaped. This makes the outer surface of the second liquid blocking component 32 smooth, so that the liquid falling onto the surface of the second liquid blocking component 32 flows into the first channel 33 under the guidance of the U-shaped outer contour, facilitating the drainage of accumulated liquid.
[0051] Specifically, continue to refer to Figure 1 As shown, a second pipe body 4 is arranged around the first pipe body 1; the first pipe body 1 and the second pipe body 4 are connected by a connecting plate 42, forming a liquid collection area 41 between the first pipe body 1 and the second pipe body 4. This allows the accumulated liquid discharged through the first channel 33 to enter the liquid collection area 41 for collection. An outlet can be provided at the bottom of the liquid collection area 41, allowing the liquid in the liquid collection area 41 to be discharged after a certain amount of liquid has been collected; the outlet can be connected to a circulation device to circulate the liquid in the liquid collection area 41 back to the absorption structure.
[0052] Specifically, the end of the first tube 1 furthest from the liquid-blocking component 3 is connected to the connecting plate 42.
[0053] Specifically, the liquid-blocking component 3 is connected to the perforated plate 2 via the support column 37, forming a third gap 38 between the liquid-blocking component 3 and the perforated plate 2. This facilitates the passage of exhaust gas and further improves the uniformity of exhaust gas flow.
[0054] Specifically, refer to Figure 4 As shown, the first liquid blocking component 31 and the second liquid blocking component 32 can be connected by a connecting post 39, so that the liquid blocking assembly 3 forms a whole.
[0055] Example 2
[0056] Reference Figure 5 As shown, this embodiment provides an absorption tower, including a tower body 100. The tower body 100 contains, from top to bottom, the following components: a waste liquid recovery zone 101, an air inlet 102, a first-stage treatment zone, a first-stage demister 104, a gas-liquid splitting device 105 as described in Embodiment 1, a second-stage processor, a second-stage demister 107, and an air outlet 108. Waste gas enters the tower body 100 through the air inlet 102 and flows upwards. After absorption treatment in the first-stage treatment zone and demister treatment in the first-stage demister 104, the waste gas continues to flow upwards and passes through the gas-liquid splitting device 105, which causes the waste gas to flow evenly upwards through the vent 21, the first gap 35, the second gap 36, and the third gap 38. Simultaneously, the gas-liquid splitting device adheres to the inner wall of the tower body 100, blocking liquid flow and preventing upper liquid leakage downwards. The waste gas then passes through the second-stage processor and the second-stage demister 107 before being discharged outwards through the air outlet 108.
[0057] The absorption tower provided by this utility model can prevent the liquid with a lower concentration in the upper layer from falling into the waste liquid recovery zone 101 in the lower layer through the gas-liquid separator, thereby avoiding leakage and ensuring the concentration of the recovered liquid in the waste liquid recovery zone 101; the waste gas can flow upward evenly through the gas-liquid separator, improving the absorption effect of the upper treatment zone.
[0058] Specifically, in this embodiment, the first-layer treatment zone includes a spray pipe 103, and the first-layer treatment zone employs spray absorption treatment. The second-layer treatment zone includes a packing material 106, and the second-layer treatment zone employs packing material 106 for absorption treatment.
[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0060] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A gas-liquid separation device, characterized in that, include: The first tube has a channel extending axially in the middle. A perforated plate, forming a ring coaxially arranged with the first tube body, is connected to the top of the first tube body; the perforated plate is provided with multiple air vents. A liquid-blocking assembly is located above a perforated plate. The liquid-blocking assembly includes a first liquid-blocking element and a second liquid-blocking element. The first liquid-blocking element includes a first channel extending along a first direction, and a plurality of first liquid-blocking elements are arranged above the perforated plate along a second direction, with a first gap formed between adjacent first liquid-blocking elements. The second liquid-blocking element includes a second channel extending along the first direction, and a plurality of second liquid-blocking elements are arranged along the second direction and overturned above the first liquid-blocking element, so that the second liquid-blocking elements block the first gap, and a second gap is formed between the inner wall of the first channel and the inner wall of the second channel. The first direction is perpendicular to the second direction. The first liquid-blocking element and the second liquid-blocking element respectively extend beyond the outer wall of the perforated plate.
2. The gas-liquid separation device according to claim 1, characterized in that, The first channel and / or the second channel are U-shaped.
3. The gas-liquid separation device according to claim 2, characterized in that, The first liquid blocking component and / or the second liquid blocking component are formed by bending a plate, so that the outer contour of the first liquid blocking component and / or the second liquid blocking component is also U-shaped.
4. The gas-liquid separation device according to claim 1, characterized in that, A second tube is arranged around the outside of the first tube; the first tube and the second tube are connected by a connecting plate, so that a liquid collection area is formed between the first tube and the second tube.
5. A gas-liquid separation device according to claim 4, characterized in that, The end of the first tube away from the liquid-blocking component is connected to the connecting plate.
6. A gas-liquid separation device according to claim 1, characterized in that, The liquid blocking component is connected to the perforated plate via a support column, forming a third gap between the liquid blocking component and the perforated plate.
7. A gas-liquid separation device according to claim 1, characterized in that, The first liquid-blocking component and the second liquid-blocking component are connected by a connecting post.
8. An absorption tower, characterized in that, The tower body includes, from bottom to top, the following components: Waste liquid recycling area; Air inlet; First-level processing area; Primary demister; The gas-liquid separation device as described in any one of claims 1 to 7 is fitted to the inner wall of the tower body to isolate the liquid flow; Second-level processing area; Secondary demister; Air vent.
9. An absorption tower according to claim 8, characterized in that, The first-floor treatment area includes spray pipes.
10. An absorption tower according to claim 8, characterized in that, The second-layer processing area includes packing material.