Crossflow cooling tower packing with bonded diamond grid pattern

Abstract

This application discloses a crossflow cooling tower packing material with a bonded diamond-shaped grid, comprising several bonded packing plates. The packing plates are vertically arranged, with one side serving as a heat exchange zone. The heat exchange zone has several rows of evenly spaced large diamond-shaped convex ridges, with adjacent rows staggered to form a diamond-shaped grid surface structure. Adjacent edges of two adjacent large diamond-shaped convex ridges in different rows are parallel and form heat exchange channels. The heat exchange zone surface inside each large diamond-shaped convex ridge also has raised structures to increase the heat exchange area. Notches are provided at the top of the four edges of each large diamond-shaped convex ridge. The packing plates have positioning structures for rapid positioning between adjacent packing plates. This packing structure is well-suited for air-water heat exchange, with low resistance during fluid flow.

Description

Technical Field

[0001] This application relates to crossflow cooling tower packing with a diamond-shaped grid and bonding points. Background Technology

[0002] Cooling towers, as important heat exchange devices, are widely used in various industrial fields, including power, petrochemical, and metallurgical industries. Their main function is to discharge waste heat from process flows into the atmosphere, typically through heat exchange between water and air. However, in traditional cooling tower design, the selection and optimization of the packing material plays a crucial role in the overall performance of the cooling tower. Cooling tower packing is the core component inside the cooling tower used to increase the contact area between water and air; its design directly affects the heat transfer effect, energy efficiency, and operational stability of the cooling tower. Traditional cooling tower packing, especially in crossflow cooling towers, no longer fully meets the requirements of modern industry for high efficiency, energy saving, and environmental protection in terms of structure, materials, and performance. Therefore, developing new types of cooling tower packing has become one of the current research hotspots. Summary of the Invention

[0003] In view of the above-mentioned technical problems existing in the prior art, the purpose of this application is to provide a crossflow cooling tower packing with a diamond-shaped grid and bonding points.

[0004] The technical solution adopted in this application is as follows:

[0005] The crossflow cooling tower packing with bonded diamond-shaped grid includes several bonded packing plates. The packing plates are vertically arranged with one side serving as a heat exchange zone. Along a top-to-bottom direction, the heat exchange zone has several rows of evenly spaced large diamond-shaped ridges, with adjacent rows staggered to form a diamond-shaped grid surface structure. Adjacent edges of two adjacent large diamond-shaped ridges in different rows are parallel and form heat exchange channels. Each large diamond-shaped ridge has heat exchange channels parallel to its four outer edges. The inner surface of the heat exchange zone of each large diamond-shaped ridge also has raised structures to increase the heat exchange area. The top of each of the four edges of the large diamond-shaped ridge has a notch. The packing plates also have positioning structures for quick positioning between adjacent packing plates.

[0006] Furthermore, the top and bottom corners of the large rhomboid convex edge are acute angles and lie on the same vertical line, while the left and right corners are obtuse angles.

[0007] Furthermore, the acute angle is 20-40°.

[0008] Furthermore, the acute angle is 30°.

[0009] Furthermore, the notches on the two sides of the upper end of the large rhombus are inclined downwards from the outside to the inside, based on the corresponding sides; the notches on the two sides of the lower end of the large rhombus are inclined downwards from the inside to the outside, based on the corresponding sides.

[0010] Furthermore, the protruding structure inside the large rhomboid ridge includes a small rhomboid ridge. The protrusion height of the small rhomboid ridge is less than that of the large rhomboid ridge. The four sides of the small rhomboid ridge and the four sides of the large rhomboid ridge are parallel to each other and spaced apart to form an inner groove flow channel. The width and depth of the inner groove flow channel are both less than those of the heat exchange channel.

[0011] Furthermore, the protruding structure inside the large rhomboid ridge also includes a rhomboid boss disposed inside the small rhomboid ridge. The rhomboid boss gradually narrows from bottom to top, and small groove structures are formed between the periphery of the rhomboid boss and the four sides of the small rhomboid ridge. The width and depth of the small groove structure are smaller than the inner groove channel.

[0012] Furthermore, the positioning structure includes frustum-shaped positioning points and circular positioning points, which are equally spaced and alternately distributed. The convex surface of the frustum-shaped positioning points and the concave surface of the circular positioning points are respectively distributed on both sides of the packing sheet, and the height of the convex surface of the frustum-shaped positioning points is greater than the depth of the concave surface of the circular positioning points.

[0013] Furthermore, the heat exchange channel is also provided with a protrusion, and the vertical distance between the top of the protrusion and the bottom of the heat exchange channel is smaller than the vertical distance between the bottom of the notch and the bottom of the heat exchange channel.

[0014] Compared with the prior art, the beneficial effects achieved by this application are:

[0015] 1) The positioning structure of this application includes frustum-shaped positioning points and circular positioning points, which are evenly spaced and alternately distributed. This allows for a quick and stable connection between the packing sheets via a snap-fit ​​method, while also ensuring the stability of the packing sheets and preventing deformation and loosening during airflow. The convex surface height of the frustum-shaped positioning point is greater than the concave surface depth of the circular positioning point, resulting in a larger gap between the two packing sheets when snapped together. This secures the packing sheets without obstructing airflow.

[0016] 2) The packing sheet of this application is provided with several rows of evenly spaced large rhomboid ridges, with adjacent rows staggered to form a rhomboid grid surface structure. In addition, small rhomboid ridges and rhomboid bosses are also provided on the inner side of the large rhomboid ridges. The overall rhomboid grid structure can increase the contact area between water and air while ensuring stable water flow distribution, thereby improving heat exchange efficiency. By optimizing water flow distribution and improving air circulation efficiency, a significant improvement in heat exchange efficiency is achieved, while reducing air flow resistance. Attached Figure Description

[0017] Figure 1 This is a front structural schematic diagram of the diamond-shaped grid crossflow cooling tower packing with bonding points in this application;

[0018] Figure 2 It is a structural schematic diagram of the large rhomboid protrusion, its inner small rhomboid protrusion, and the rhomboid boss;

[0019] Figure 3 This is a structural schematic diagram of the cross-section of the edge of the large rhomboid convex ridge along its length direction;

[0020] In the figure: 1-large rhomboid protrusion, 11-rhomboid edge, 12-notch, 2-small rhomboid protrusion, 3-rhomboid boss, 4-circular plate positioning point, 5-frustum-shaped positioning point, 6-protrusion, 7-heat exchange channel. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0022] Example: Comparison Figure 1-3

[0023] The crossflow cooling tower packing with a diamond-shaped mesh and adhesive joints consists of several bonded packing plates arranged vertically, with the front side of the packing plates serving as the heat exchange zone (see reference). Figure 1 Along the top-to-bottom direction, the heat exchange zone is provided with several rows of evenly spaced large rhomboid protrusions 1, with adjacent rows arranged alternately to form a rhomboid grid surface structure.

[0024] Comparison Figure 1 It can be seen that the adjacent rhombus edges on two adjacent large rhombus convex ridges 1 in different rows are parallel and form heat exchange channels 7. Each large rhombus convex ridge 1 has heat exchange channels 7 parallel to its four rhombus edges on its outer side. The heat exchange area surface on the inner side of each large rhombus convex ridge 1 is also provided with a protruding structure to increase the heat exchange area. The top of each of the four rhombus edges 11 of the large rhombus convex ridge 1 is provided with a notch 12.

[0025] The heat exchange channel 7 also has a protrusion 6. The thickness of the protrusion 6 on the front side of the packing sheet is less than the thickness of the protrusion 12 on the front side of the packing sheet. In other words, the vertical distance between the top of the protrusion 6 and the bottom of the heat exchange channel 7 is less than the vertical distance between the bottom of the notch 12 and the bottom of the heat exchange channel 7. (Compare) Figure 1 In the heat exchange channel 7, the protrusion 6 is positioned close to the notch 12, and both protrusions are inclined in the same direction. The protrusion 6 is relatively shallow, and its purpose is to slow down the flow rate of water within the heat exchange channel 7 to a certain extent.

[0026] Comparison Figures 1-2The top and bottom two angles of the large rhomboid convex ridge 1 are acute angles and lie on the same vertical line, while the left and right angles are obtuse angles. The acute angles are 20-40°, preferably 30°. The sum of the angles of the four angles of the large rhomboid convex ridge 1 is 360°.

[0027] Comparison Figures 1-2 The notches 12 on the two sides of the upper part of the large rhomboid ridge 1 are inclined downward from the outside to the inside, based on the corresponding sides; the notches 12 on the two sides of the lower part of the large rhomboid ridge 1 are inclined downward from the inside to the outside, based on the corresponding sides. Therefore, the water flowing on the packing sheet within the heat exchange channel 7 can enter the inner side of the large rhomboid ridge 1 through the two notches 12 at the upper part and flow out through the two notches 12 at the lower part, facilitating better distribution of the water flow on the packing sheet.

[0028] The heat exchange area surface inside each large rhomboid ridge 1 is also provided with a raised structure to increase the heat exchange area. The raised structure inside the large rhomboid ridge 1 includes small rhomboid ridges 2 and rhomboid protrusions 3 inside the small rhomboid ridges 2. The protrusion height of the small rhomboid ridges 2 on the packing sheet is less than the protrusion height of the large rhomboid ridge 1 on the packing sheet. The four rhomboid edges of the small rhomboid ridges 2 are parallel to each other and spaced apart to form an inner groove flow channel. The width and depth of the inner groove flow channel are both less than the heat exchange channel 7. The rhomboid protrusions 3 gradually narrow from bottom to top. The periphery of the rhomboid protrusions 3 and the four rhomboid edges of the small rhomboid ridges 2 are spaced apart to form small groove structures. The width of the small groove structure is less than the width of the inner groove flow channel, and the depth of the small groove structure is less than the depth of the inner groove flow channel.

[0029] The diamond-shaped mesh surface structure on the packing sheet of this application allows for water flow from top to bottom and air blowing from bottom to top during heat exchange between air and water. This results in a small angle between the fluid and the heat exchange channel 7, leading to low resistance. Airflow can be effectively utilized throughout the entire packing sheet.

[0030] The packing sheet of this invention is provided with a positioning structure for rapid positioning between two adjacent packing sheets. The positioning structure includes frustum-shaped positioning points 5 and circular positioning points 4, which are equally spaced and alternately distributed. The convex surface of the frustum-shaped positioning point 5 and the concave surface of the circular positioning point 4 are respectively distributed on both sides of the packing sheet, and the height of the convex surface of the frustum-shaped positioning point 5 (i.e., the height of the convex surface on the front side of the packing sheet) is greater than the depth of the concave surface of the circular positioning point 4. For example, a frustum-shaped positioning point 5 is provided on the front side of the packing sheet, and a circular positioning point 4 is provided on the back side of the packing sheet. When two adjacent packing sheets are spliced, the frustum-shaped positioning point 5 on the front side of one packing sheet engages with the circular positioning point 4 on the back side of the other packing sheet.

[0031] The positioning structure on the packing sheet of the present invention has the following advantages when two packing sheets are directly connected: 1) it increases the distance between the two packing sheets and reduces the resistance to fluid flow; 2) it provides strong support and avoids deformation and loosening of the packing sheets.

[0032] The contents described in this specification are merely an enumeration of the implementation forms of the inventive concept, and the scope of protection of this invention should not be regarded as limited to the specific forms described in the embodiments.

Claims

1. A cooling tower packing with bonding points and rhombic grid type, comprising a plurality of bonded packing pieces, the packing pieces are vertically arranged and one side of the packing pieces is a heat exchange area, characterized in that Along the top-to-bottom direction, the heat exchange zone is provided with several rows of uniformly spaced large rhomboid convex ridges (1), and adjacent rows are staggered to form a rhomboid grid surface structure; the adjacent rhomboid edges on two adjacent large rhomboid convex ridges (1) in different rows are parallel to each other and form heat exchange channels (7), and the four rhomboid edges of each large rhomboid convex ridge (1) have heat exchange channels (7) parallel to them on their outer sides; the heat exchange zone surface inside each large rhomboid convex ridge (1) is also provided with a protrusion structure for increasing the heat exchange area, and the top of the four rhomboid edges (11) of the large rhomboid convex ridge (1) is provided with a notch (12); the packing sheet is provided with a positioning structure for quick positioning between two adjacent packing sheets.

2. The strip with bond point diamond mesh type cross flow cooling tower packing according to claim 1, characterized in that The top and bottom corners of the large rhomboid convex edge (1) are acute and located on the same vertical line, while the left and right corners are obtuse.

3. The strip with bond point diamond mesh type cross flow cooling tower packing according to claim 2, characterized in that The acute angle is 20-40°.

4. The strip with bond point diamond mesh type cross flow cooling tower packing according to claim 3, characterized in that The acute angle is 30°.

5. The strip with bond point diamond mesh type cross flow cooling tower packing according to claim 1, characterized in that The notches (12) on the two sides of the upper end of the large rhomboid convex ridge (1) are all inclined downward from the outside to the inside based on the corresponding sides; the notches (12) on the two sides of the lower end of the large rhomboid convex ridge (1) are all inclined downward from the inside to the outside based on the corresponding sides.

6. The crossflow cooling tower packing with bonding points and diamond-shaped mesh as described in claim 1, characterized in that... The protruding structure inside the large rhomboid protrusion (1) includes a small rhomboid protrusion (2). The protrusion height of the small rhomboid protrusion (2) is less than that of the large rhomboid protrusion (1). The four rhomboid edges of the small rhomboid protrusion (2) and the four rhomboid edges of the large rhomboid protrusion (1) are parallel to each other and spaced apart to form an inner groove flow channel. The width and depth of the inner groove flow channel are both less than those of the heat exchange groove (7).

7. The crossflow cooling tower packing with bonding points and diamond-shaped mesh as described in claim 6, characterized in that... The protruding structure inside the large rhomboid protrusion (1) also includes a rhomboid protrusion (3) set inside the small rhomboid protrusion (2). The rhomboid protrusion (3) gradually narrows from bottom to top. Small groove structures are formed between the periphery of the rhomboid protrusion (3) and the four sides of the small rhomboid protrusion (2). The width and depth of the small groove structure are smaller than the inner groove flow channel.

8. The crossflow cooling tower packing with bonding points and diamond-shaped mesh as described in claim 1, characterized in that... The positioning structure includes a frustum-shaped positioning point (5) and a circular positioning point (4), which are equally spaced and alternately distributed. The convex surface of the frustum-shaped positioning point (5) and the concave surface of the circular positioning point (4) are respectively distributed on both sides of the packing sheet, and the height of the convex surface of the frustum-shaped positioning point (5) is greater than the depth of the concave surface of the circular positioning point (4).

9. The crossflow cooling tower packing with bonding points and diamond-shaped mesh as described in claim 1, characterized in that... The heat exchange channel (7) is also provided with a protrusion (6). The vertical distance between the top of the protrusion (6) and the bottom of the heat exchange channel (7) is smaller than the vertical distance between the bottom of the notch (12) and the bottom of the heat exchange channel (7).

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