Gas-liquid mixing structure and heat and mass transfer structure

Abstract

The utility model provides a gas-liquid mixing structure and a heat and mass transfer structure, and the gas-liquid mixing structure comprises a main body plate provided with a plurality of through holes; the cover shells correspond to the through holes, all the cover shells are arranged on the surface of the same side of the main body plate, the projection of each cover shell on the surface of the main body plate where the cover shell is located at least partially covers the corresponding through hole, the cover shells and the edges of the through holes jointly define a communicating opening communicated with the through holes, and the communicating opening is in an acute angle at the joint of the cover shells and the through holes. A reaction solution falling on the upper surface of the main body plate is sucked into the communicating port, so that the reaction solution is more dispersed on the surface of the side, provided with the cover shell, of the main body plate, the reaction solution is distributed on the surface of the side, provided with the cover shell, of the main body plate, the thickness is uniform, and the contact area with smoke is increased; therefore, the reaction efficiency of the flue gas and the reaction solution is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas processing technology, and in particular to a gas-liquid mixing structure and a heat and mass transfer structure. Background Technology

[0002] The large amounts of flue gas generated by factories need to be treated and purified before being discharged. Common treatments include desulfurization and decarbonization. Currently, gas-liquid reaction is generally used for flue gas purification. Typically, the flue gas is passed into an absorption tower, and a reaction solvent, such as a desulfurization solvent or a decarbonization solvent, is released into the tower. As the flue gas flows through the absorption tower, it reacts with the solvent, causing harmful substances in the flue gas to be absorbed, thus purifying the flue gas. Finally, the treated flue gas flows out from the top of the absorption tower. Therefore, the reaction efficiency between the flue gas and the reaction solvent in the absorption tower has a significant impact on the degree of flue gas purification. Utility Model Content

[0003] One objective of this invention is to provide a gas-liquid mixing structure and a heat and mass transfer structure that can improve the efficiency of gas-liquid reaction.

[0004] Specifically, this utility model provides a gas-liquid mixing structure, comprising:

[0005] The main body plate has multiple through holes; and

[0006] For each of the through holes, the cover shells are disposed on the same side of the main body plate. The projection of each cover shell on the surface of the main body plate at least partially covers the corresponding through hole. The cover shell and the edge of the through hole together form a communication port communicating with the through hole. The communication port forms an acute angle at the junction of the cover shell and the through hole.

[0007] Optionally, the edge of the through hole has a straight portion, and the cover shell is connected to both ends of the straight portion to form the communication opening.

[0008] Optionally, the plane containing the communication opening is perpendicular to the surface of the main body plate on which the cover is located.

[0009] Optionally, all the connecting ports face the same direction, and along the direction in which the connecting ports face, all the through holes are distributed in multiple rows.

[0010] Optionally, the through holes in adjacent rows are staggered.

[0011] Optionally, the cover shell has a bent surface on the side facing the through hole, the concave side of the bent surface facing the through hole, and the bent surface extends from the through hole to the communication opening.

[0012] Optionally, the bending surface is a smooth curved surface.

[0013] Optionally, the wall of the through hole is smoothly connected to the surface of the main body plate opposite to the cover shell through an arc-shaped surface.

[0014] Optionally, the angle between the connecting opening and the through hole at the junction of the cover and the through hole is greater than or equal to 10 degrees and less than 90 degrees.

[0015] In another aspect of this invention, a heat and mass transfer structure is also provided, comprising:

[0016] The tower body forms a reaction space;

[0017] A liquid supply device, disposed within the reaction space, is used to supply the reaction solution into the reaction space; and

[0018] The gas-liquid mixing structure described in any of the above embodiments is disposed within the reaction space and located below the liquid supply device, with the side of the main body plate having the cover shell facing the liquid supply device.

[0019] The gas-liquid mixing structure of this invention features multiple through holes in a main body plate. A cover is placed on the same side of the main body plate corresponding to each through hole. The projection of each cover onto the surface of the main body plate at least partially covers the corresponding through hole. This prevents the reaction solution falling towards the gas-liquid mixing structure from directly entering the through holes, thus allowing most of the reaction solution to fall onto the surface of the main body plate. The edges of the cover and the through holes together form a connecting opening, with the opening forming an acute angle at the junction of the cover and the through hole. This creates capillary action at the junction, drawing the reaction solution falling onto the upper surface of the main body plate into the connecting opening, and then allowing the reaction solution to flow through the through holes to the lower surface of the main body plate. In this way, the connecting port attracts the reaction solution on the surface of the main plate, preventing it from accumulating too thickly. It also ensures the reaction solution is more dispersed on the covered side of the main plate, resulting in a more even and comprehensive distribution of the solution. This increases the contact area with the flue gas, thereby improving the reaction efficiency between the flue gas and the reaction solution, and also enhancing the utilization efficiency of the reaction solution. Furthermore, the connecting port attracts the reaction solution, allowing it to flow along the through-hole to the other side of the main plate and form a water film, further increasing the contact area between the reaction solution and the flue gas and contributing to improved reaction efficiency.

[0020] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0021] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0022] Figure 1 This is a schematic diagram of a heat and mass transfer structure according to an embodiment of the present invention;

[0023] Figure 2 This is a first schematic diagram of a gas-liquid mixing structure according to an embodiment of the present invention;

[0024] Figure 3 This is a second schematic diagram of a gas-liquid mixing structure according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic top view of a gas-liquid mixing structure according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic enlarged view of the communication port of the gas-liquid mixing structure according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic cross-sectional view of a cover portion of a gas-liquid mixing structure according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of a gas-liquid mixing structure according to another embodiment of the present invention;

[0029] Figure 8 This is a schematic top view of a gas-liquid mixing structure according to another embodiment of the present invention. Detailed Implementation

[0030] Those skilled in the art should understand that the embodiments described below are merely some embodiments of the present invention, and not all embodiments of the present invention. These embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0032] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] like Figure 1 As shown, in one embodiment, the heat and mass transfer structure 10 includes a tower body 100, a liquid supply device 200, and a gas-liquid mixing structure 300. The tower body 100 forms a reaction space 101. The liquid supply device 200 is disposed within the reaction space 101 and is used to supply the reaction solution into the reaction space 101. The liquid supply device 200 can be a sprayer or a drip irrigation device, etc. The gas-liquid mixing structure 300 is disposed within the reaction space 101 and located below the liquid supply device 200. Specifically, the heat and mass transfer structure 10 is a gas-liquid reaction device, and because the operation is usually accompanied by the movement of heat and fluid, it can also be called a heat and mass transfer structure.

[0034] like Figures 1 to 6 As shown, the gas-liquid mixing structure 300 includes a main body plate 310, which is provided with a plurality of through holes 301. The gas-liquid mixing structure 300 also includes a cover shell 320 corresponding to each through hole 301. All cover shells 320 are disposed on the same side surface of the main body plate 310, and the projection of each cover shell 320 on the surface of the main body plate 310 at least partially covers the corresponding through hole 301. The cover shell 320 and the edge of the through hole 301 together form a communication port 302 communicating with the through hole 301. The communication port 302 forms an acute angle at the junction of the cover shell 320 and the through hole 301.

[0035] Reference Figures 1 to 6As shown, specifically, the through hole 301 penetrates the main body plate 310 along its thickness direction, and the cover 320 is disposed on the surface of the main body plate 310 where one end of the through hole 301 is located. The cover 320 protrudes from the surface of the main body plate 310, and the portion of the cover 320 that fits against the main body plate 310 surrounds a portion of the edge of the through hole 301. The edge of the through hole 301 not surrounded by the cover 320, together with the cover 320, forms a connecting opening 302 that communicates with the through hole 301. In other words, the cover 320 forms a space between the through hole 301 and the connecting opening 302 at one end of the through hole 301. Furthermore, the connecting opening 302 forms an acute angle at the junction of the cover 320 and the through hole 301. Specifically, the angle of the connecting opening 302 at the junction of the cover 320 and the through hole 301 is greater than or equal to 10 degrees and less than 90 degrees. For example, it could be 10 degrees, 13 degrees, 20 degrees, 27 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 56 degrees, 60 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees, or 89 degrees, etc.

[0036] Continue to refer to Figures 1 to 6 As shown, the gas-liquid mixing structure 300 is disposed within the reaction space 101 and located below the liquid supply device 200, with the side of the cover 320 facing the liquid supply device 200. During the process of the liquid supply device 200 supplying the reaction solution into the reaction space 101, the reaction solution will fall onto the side of the main plate 310 where the cover 320 is located. Because the cover 320 at least partially covers the through hole 301, the reaction solution cannot fall directly into the through hole 301, so most of the reaction solution will fall onto the surface of the main plate 310. Furthermore, because the connecting port 302 forms an acute angle at the junction of the cover 320 and the through hole 301, a capillary effect can be formed at the junction of the cover 320 and the through hole 301, thereby drawing the reaction solution falling onto the upper surface of the main plate 310 into the connecting port 302, and then allowing the reaction solution to flow through the through hole 301 to the lower surface of the main plate 310, where a water film is formed.

[0037] In addition, the tower body 100 is also provided with an air inlet 102, which is located below the gas-liquid mixing structure 300. The flue gas enters the reaction space 101 through the air inlet 102 and rises to the top of the reaction space 101. When the flue gas rises to the gas-liquid mixing structure 300, it can react with the water film of the reaction solution on the bottom surface of the main plate 310. Then, the flue gas passes through the through hole 301 through the main plate 310, and then flows to the connecting port 302 under the obstruction of the cover shell 320 and flows to the top of the main plate 310 through the connecting port 302, where it reacts with the reaction solution diffused on the surface of the main plate 310.

[0038] In this embodiment, by providing multiple through holes 301 on the main body plate 310, and providing a cover 320 on the same side of the main body plate 310 corresponding to each through hole 301, the projection of each cover 320 on the surface of the main body plate 310 at least partially covers the corresponding through hole 301. This prevents the reaction solution falling towards the gas-liquid mixing structure 300 from directly falling into the through hole 301 due to the obstruction of the cover 320, so most of the reaction solution falls onto the surface of the main body plate 310. The edges of the cover 320 and the through hole 301 together form a connecting port 302 that communicates with the through hole 301. The connecting port 302 forms an acute angle at the junction of the cover 320 and the through hole 301, thus creating a capillary effect at the junction of the cover 320 and the through hole 301. This draws the reaction solution falling onto the upper surface of the main body plate 310 into the connecting port 302, and then allows the reaction solution to flow through the through hole 301 to the lower surface of the main body plate 310. In this way, the connecting port 302 attracts the reaction solution on the surface of the main plate 310, preventing the reaction solution from accumulating too thickly on the surface of the main plate 310. It also makes the reaction solution more dispersed on the side of the main plate 310 with the cover 320, helping to cover the surface of the main plate 310 with the cover 320 and achieve a uniform thickness, increasing the contact area with the flue gas, thereby improving the reaction efficiency between the flue gas and the reaction solution, and also improving the utilization efficiency of the reaction solution. Furthermore, the connecting port 302 attracts the reaction solution, helping it flow along the through hole 301 to the other side of the main plate 310 and form a water film, which also increases the contact area between the reaction solution and the flue gas, further improving the reaction efficiency between the flue gas and the reaction solution.

[0039] In addition, by setting the angle of the connecting port 302 at the junction of the cover shell 320 and the through hole 301 to be greater than or equal to 10 degrees and less than 90 degrees, the flow of flue gas is not excessively obstructed while ensuring a good attraction effect on the reaction solution.

[0040] like Figures 2 to 6 As shown, in one embodiment, the edge of the through hole 301 has a straight portion 330, and the cover 320 is connected to both ends of the straight portion 330 to form a connecting opening 302. Specifically, the edge of the through hole 301 is arc-shaped, and the straight portion 330 is the bowstring portion of the arc. The portion of the cover 320 that is in contact with the surface of the main body plate 310 surrounds the arc portion of the arc-shaped through hole 301, and thus is connected to both ends of the bowstring portion, that is, to both ends of the straight portion 330. The connecting opening 302 forms an acute angle at the junction of the cover 320 and the through hole 301, that is, the position where the cover 320 and the two ends of the straight portion 330 are connected forms an acute angle.

[0041] In this embodiment, by setting a portion of the edge of the through hole 301 as a straight portion 330, the cover 320 and the two ends of the straight portion 330 are connected to form a connecting opening 302. That is, the connecting opening 302 forms an acute angle at the position where the cover 320 and the two ends of the straight portion are connected, which makes the structure of the cover 320 and the edge of the through hole 301 forming an acute angle simpler and easier to manufacture.

[0042] It should be noted that in some other embodiments, the shape of the through hole with the straight portion can also be other shapes, such as square, triangle, or other polygons. In addition, the shape of the through hole can also be circular or elliptical, and the connection between the opening and the cover can also be an acute angle.

[0043] Reference Figures 2 to 6 As shown, the plane of the connecting port 302 is perpendicular to the surface of the main body plate 310 where the cover 320 is located. Specifically, the axis of the connecting port 302 is parallel to the surface of the main body plate 310 where the cover 320 is located. By making the plane of the connecting port 302 perpendicular to the surface of the main body plate 310 where the cover 320 is located, the flue gas can flow parallel to the surface of the main body plate 310, which is beneficial to the diffusion of the flue gas on the surface of the main body plate 310, thereby improving the reaction efficiency with the reaction solution on the surface of the main body plate 310.

[0044] like Figure 6 As shown, in one embodiment, the cover 320 has a bent surface on the side facing the through hole 301, with the concave side of the bent surface facing the through hole 301. The bent surface extends from the through hole 301 to the connecting opening 302. Specifically, the bent surface is a smooth curved surface. This structure allows the flue gas from the through hole 301 to flow towards the bent surface, and then, guided by the bent surface, flow towards the connecting opening 302, thereby making the gas flow smoother and avoiding turbulence caused by abrupt changes in flow direction.

[0045] like Figure 6 As shown, the wall of the through hole 301 is smoothly connected to the surface of the main body plate 310 on the side opposite to the cover shell 320 through the arc surface, which helps the flue gas to flow more smoothly.

[0046] like Figures 2 to 6 As shown, in one embodiment, all connecting ports 302 face the same direction, and along the direction in which the connecting ports 302 face, all through holes 301 are distributed in multiple rows. (Refer to...) Figure 4 As shown, all the connecting ports 302 face upwards, and all the through holes 301 are divided into multiple rows along the vertical direction.

[0047] By aligning all the connecting ports 302 in the same direction and distributing all the through holes 301 in multiple rows along the direction in which the connecting ports 302 are oriented, the structure of the gas-liquid mixing structure 300 becomes simpler and easier to manufacture.

[0048] It should be noted that in some other embodiments, the orientation of the connection port may also be different.

[0049] like Figure 7 and Figure 8 As shown, in one embodiment, when all through holes 301 are distributed in multiple rows, the through holes 301 in adjacent rows are staggered, thereby allowing the flue gas to diffuse better on the surface of the main body plate 310.

[0050] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A gas-liquid mixing structure, characterized in that, include: The main body plate has multiple through holes; and For each of the through holes, the cover shells are disposed on the same side of the main body plate. The projection of each cover shell on the surface of the main body plate at least partially covers the corresponding through hole. The cover shell and the edge of the through hole together form a communication port communicating with the through hole. The communication port forms an acute angle at the junction of the cover shell and the through hole.

2. The gas-liquid mixing structure according to claim 1, characterized in that, The edge of the through hole has a straight portion, and the cover shell is connected to both ends of the straight portion to form the communication opening.

3. The gas-liquid mixing structure according to claim 2, characterized in that, The plane containing the connecting port is perpendicular to the surface of the main body plate on which the cover is located.

4. The gas-liquid mixing structure according to claim 1, characterized in that, All the connecting ports face the same direction, and along the direction in which the connecting ports face, all the through holes are distributed in multiple rows.

5. The gas-liquid mixing structure according to claim 4, characterized in that, The through holes in adjacent rows are misaligned.

6. The gas-liquid mixing structure according to claim 1, characterized in that, The cover shell has a bent surface on the side facing the through hole, the concave side of the bent surface faces the through hole, and the bent surface extends from the through hole to the communication opening.

7. The gas-liquid mixing structure according to claim 6, characterized in that, The bending surface is a smooth curved surface.

8. The gas-liquid mixing structure according to claim 1, characterized in that, The wall of the through hole is smoothly connected to the surface of the main body plate on the side opposite to the cover shell through an arc-shaped surface.

9. The gas-liquid mixing structure according to claim 1, characterized in that, The angle between the connecting opening and the through hole is greater than or equal to 10 degrees and less than 90 degrees.

10. A heat and mass transfer structure, characterized in that, include: The tower body forms a reaction space; A liquid supply device is installed within the reaction space for supplying the reaction solution into the reaction space; and According to any one of claims 1 to 9, the gas-liquid mixing structure is disposed within the reaction space and located below the liquid supply device, and the side of the main body plate with the cover shell faces the liquid supply device.

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