Cooling packing for cold water towers

Abstract

The application discloses cooling filler for cold water tower, and relates to cooling technology field, the cooling filler includes at least one wet curtain block; the wet curtain block includes two kinds of wave-shaped paper cores, each wave-shaped paper core is provided with multiple, two kinds of wave-shaped paper cores are sequentially superimposed to form a multilayer structure in cross order; each wave-shaped paper core has a front surface and a back surface, and forms a first ridge protruding from the front surface and a second ridge protruding from the back surface; the orientation of the ridge of two kinds of wave-shaped paper cores is different when superimposed, and the projection on the superimposed direction is directionally crossed; in the multilayer structure, the front surface of the first kind of wave-shaped paper core corresponds to the back surface of the adjacent second kind of wave-shaped paper core, and the first ridge and the adjacent second ridge abut; the first ridge of each wave-shaped paper core is provided with glue in the length direction, for gluing two ridges when abutting. The cooling filler can form a huge water film, the water temperature after cooling is closer to the air wet bulb temperature, and the glue strengthens the water support capacity of the ridge, and the wet water is not easy to collapse.

Description

Technical Field

[0001] This invention relates to the field of cooling technology, and more particularly to a cooling packing material for cooling towers. Background Technology

[0002] Cooling towers are indispensable heat dissipation devices in industrial plants and large building central air conditioning systems. Their basic working principle utilizes the contact between water and air, employing evaporative heat absorption and convective heat transfer to remove waste heat generated during production or refrigeration. In actual operation, hot water carrying waste heat is pumped by a circulating water pump to the water distribution system at the top of the cooling tower, and then evenly sprayed onto the cooling packing material inside the tower via nozzles. The cooling packing material increases the contact interface between water and air. Flowing dry air passes through the moist water film, causing some of the water to evaporate and vaporize. This phase change process absorbs a large amount of latent heat of vaporization, thus significantly lowering the temperature of the remaining water. The cooled water falls into the collection basin at the bottom of the tower and is then pumped back to the equipment requiring cooling, forming a closed-loop cycle.

[0003] Currently, the cooling packing material commonly used in cooling towers is plastic corrugated sheet, which has limited ability to increase the gas-liquid contact area, resulting in low overall heat dissipation efficiency, and there is still room for improvement. Summary of the Invention

[0004] To overcome the shortcomings mentioned above, this invention aims to provide a technical solution to address the aforementioned technical problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cooling packing material for a cooling tower, comprising at least one wet curtain block; The wet curtain block includes two types of corrugated paper cores, with multiple sheets of each type. The two types of corrugated paper cores are stacked in a cross order to form a multi-layer structure. The space enclosed by the two adjacent wavy paper cores stacked together forms the wet curtain channel; Each corrugated paper core has a front and a back; A first ridge protruding from the front and a second ridge protruding from the back are formed on the wavy paper core. The second ridge is formed in the valley area between two adjacent first ridges, and the first ridge is formed in the valley area between two adjacent second ridges. When two types of corrugated paper cores are stacked, the ridges of the two types of corrugated paper cores face different directions. In the projection direction of the stacking direction, the lines formed by the projections of the ridges of the two types of corrugated paper cores intersect. When two types of corrugated paper cores are stacked in sequence to form a multi-layer structure, the following configuration is established: the front of the first type of corrugated paper core corresponds to the back of the adjacent second type of corrugated paper core, and the back of the first type of corrugated paper core corresponds to the front of another adjacent second type of corrugated paper core; and the following configuration is established: the first ridge of the first type of corrugated paper core abuts against the second ridge of the adjacent second type of corrugated paper core, and the second ridge of the first type of corrugated paper core abuts against the first ridge of another adjacent second type of corrugated paper core. Adhesive is provided on the first ridge of each corrugated paper core along the length of the first ridge. The adhesive extends along the length of the first ridge, and when the first ridge of any corrugated paper core comes into contact with the second ridge of an adjacent corrugated paper core, the adhesive forms a bond between the two different ridges. The adhesive is also cured on the first ridge and at the location on the second ridge that comes into contact with the first ridge.

[0006] A further embodiment of the present invention: the cooling packing consists of at least two wet curtain blocks, which are stacked one on top of the other to form the cooling packing.

[0007] A further aspect of the present invention is that each wet curtain block is provided with a through hole running vertically, and the holes of adjacent wet curtain blocks stacked vertically correspond vertically. The main water distribution pipe of the cooling tower passes sequentially through the holes of multiple stacked wet curtain blocks.

[0008] A further aspect of the present invention is that at least a portion of the sub-channels of the wet curtain channel of the upper wet curtain block do not directly correspond to the sub-channels of the wet curtain channel of the lower wet curtain block; Water flowing down from any one of the sub-channels of the wet curtain channel of the upper wet curtain block is received by the walls of at least two sub-channels of the wet curtain channel of the lower wet curtain block.

[0009] A further aspect of the present invention is that the adhesive extends along the slope of the corrugated paper core to form an extended adhesive wing.

[0010] A further aspect of the present invention is that the extension of the extended rubber flap in the direction of the wave crest difference is 1cm-4cm; The distance between adjacent crests on the same corrugated paper core is 1.5cm-2cm; The peak value difference between the front and back peaks on the same corrugated paper core is 0.5cm-1cm; The two types of corrugated paper cores intersect at an angle of 40°-50°. The angle between the two slopes where the ridge is located is 70°-90°.

[0011] Compared with existing technologies, the beneficial effects of this technical solution are as follows: 1. When this cooling packing is used to cool water in a cooling tower, a huge water film forms on the surface of the packing. When air flows over it, the water evaporates and carries away a large amount of heat, thus achieving cooling. The water temperature after cooling is closer to the wet-bulb temperature of the air. Moreover, in dry and hot climates, especially when the cooling tower is placed on the roof in summer, the cooling effect of the cooling packing is much better than that of the traditional method of using plastic corrugated pipes. Second, on the one hand, the adhesive is used to bond the first ridge of the corrugated paper core to the second ridge of the adjacent corrugated paper core; on the other hand, thanks to the adhesive set along the length of the first ridge, the adhesive is also used to make the first ridge form a water-resistant strong support ridge reinforced by adhesive, so that the whole is used as a cooling filler and is less likely to collapse after getting wet.

[0012] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the connection structure between the first type of corrugated paper core and the second type of corrugated paper core of the present invention; Figure 2 This is a schematic diagram of the structure of the first corrugated paper core of the present invention; Figure 3 yes Figure 2 Enlarged schematic diagram of the local structure at point B; Figure 4 This is a schematic diagram of the structure of the cooling tower used in this invention; Figure 5 This is a cross-sectional view of the cooling tower used in this invention; Figure 6 This is a perspective view of the connection structure between the cooling packing material and the main water distribution pipe of the present invention; Figure 7 This is a perspective view of another connection structure between the cooling packing and the main water distribution pipe of the present invention. Figure 6 The view orientations are different; Figure 8 This is a top view of the connection structure between the cooling packing and the main water distribution pipe of the present invention; The corresponding labels in the attached diagram are explained as follows: Tower body -1, low position -101, middle position -102, high position -103, Water collection tray-2, Packing installation chamber-3, High-level ventilation opening -4 Low-level ventilation opening -5, Cooling filler-6, evaporative cooling pad channel-61, mating hole-62, evaporative cooling pad block-63, first type of corrugated paper core-631a, second type of corrugated paper core-631b, front side-632a, 632b, back side-633a, 633b, first ridge-634a, 634b, second ridge-635a, 635b, adhesive-636, extension adhesive wings-637. Water distribution mechanism-7, main water distribution pipe-701, sprinkler branch pipe-702, Active air cooling mechanism-8, fan mounting bracket-801, fan-802, fan blade-803, Supporting space frame - 9. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only 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 are within the scope of protection of the present invention.

[0016] Please see Figure 1-8 In this embodiment, a cooling packing material for a cooling tower is provided. When the cooling tower is working, it can be designed to spray the water that needs to be cooled onto the cooling packing material. The water forms a huge water film on the surface of the cooling packing material. When air flows over it, the water evaporates and carries away a large amount of heat, thus achieving cooling.

[0017] In some embodiments, the structure of the applied cooling tower includes, for example, a tower body 1, a water collection tray 2 provided at the lower position 101 of the tower body 1, a packing installation chamber 3 provided at the middle position 102 of the tower body, a high-level ventilation opening 4 provided at the higher position 103 of the tower body, and a low-level ventilation opening 5 provided on the tower body 1 between the water collection tray 2 and the packing installation chamber 3.

[0018] Cooling packing 6 is installed in the packing installation chamber 3. Water flows from top to bottom in the cooling packing 6. The cooling packing 6 has a wet curtain channel 61 that is connected from top to bottom.

[0019] The upper part 103 of the tower body is also equipped with a water distribution mechanism 7, which is used to spray the water that needs to be cooled onto the cooling packing 6.

[0020] Water forms a large water film on the surface of the cooling packing 6. When air flows over it, the water evaporates and carries away a large amount of heat, achieving cooling. The cooled water temperature is closer to the wet-bulb temperature of the air. Moreover, in dry and hot climates, especially in summer when the cooling tower is placed on the roof (a common location for cooling towers), the cooling effect of this cooling tower using cooling packing is much better than that of the traditional cooling tower using plastic corrugated pipes.

[0021] In some embodiments, the high position 103, middle position 102, and low position 101 of the tower body are relative to the main tower body positions on which the above-mentioned components are arranged.

[0022] For example, if the main tower body location of the aforementioned components is the upper tower body, then the lower part of the tower body is usually at the bottom of the upper tower body, the middle part is usually in the middle of the upper tower body, and the highest part is usually at the top of the upper tower body. Other positions on the tower body can be configured separately. For example, the lower tower body can be equipped with fixed brackets or other electrical components, and the installation position of these fixed brackets or other electrical components can be different from the aforementioned high, middle, and low positions on the tower body.

[0023] Therefore, the water collection tray located at the lower position of the tower body can be located at the bottom of the entire tower body or, as needed, at other parts of the entire tower body, to satisfy the correspondence with the components located at the higher and middle positions of the tower body. Similarly, the corresponding components located at the higher and middle positions of the tower body can be located at the corresponding top and middle positions of the entire tower body or, as needed, at other parts of the entire tower body, and to satisfy the correspondence with the components located at the lower position of the tower body.

[0024] In some embodiments, the cooling tower further includes an active air cooling mechanism 8, which is configured to transport or drive air along a flow path from the low-level vent 5 to the wet curtain channel 61 to the high-level vent 4 or along a flow path from the high-level vent to the wet curtain channel to the low-level vent, thereby forming forced air cooling to improve the cooling effect.

[0025] In some embodiments, the active air-cooling mechanism 8 includes a fan mounting bracket 801 installed at a high position on the tower body, a fan 802 mounted on the fan mounting bracket 801, and fan blades 803 connected to the rotating shaft of the fan 802. The fan 802 drives the fan blades 803 to blow air into the high-level ventilation port 4 or to blow air out of the high-level ventilation port 4 (forming an exhaust of air into the tower body).

[0026] For example, when the air is transported or driven along a flow path from the low-level vent 5 to the wet curtain channel 61 to the high-level vent 4, the combination of the fan 802 and the fan blade 803 can be configured as an exhaust fan. Figure 4 , 5As shown, the fan 802 and the fan blade 803 are located at the high-level ventilation port 4. The fan 802 and the fan blade 803 are higher than the water distribution mechanism 7. The fan 802 can drive the fan blade 803 to blow air to the outside of the high-level ventilation port 4 to form a suction effect on the inside of the tower.

[0027] In some embodiments, the water distribution mechanism 7 includes a main water distribution pipe 701 and multiple spray branch pipes 702. The main water distribution pipe 701 is configured to enter the tower body 1 from the lower position of the tower body and extend upward from the inside of the packing installation chamber 3 to the upper position 103 of the tower body.

[0028] The spray branch pipe 702 is located within the high position 103 of the tower body and is connected to the main water distribution pipe 701 that extends upwards to the high position of the tower body. The spray branch pipe 702 has at least one spray hole or is equipped with at least one spray nozzle. Water that needs to be cooled is input through the main water distribution pipe 701 and finally sprayed out through the spray branch pipe 702 to spray onto the cooling packing 6.

[0029] Furthermore, when the water distribution main pipe 701 extends upward from inside the packing installation chamber 3 to the high position 103 of the tower body, it passes through the cooling packing 6 inside the packing installation chamber.

[0030] Specifically, the cooling packing 6 is provided with a through-hole 62. When the water distribution main pipe 701 passes through the packing installation chamber 3 and ascends to the high position 103 of the tower body, it passes through the through-hole 62 of the cooling packing.

[0031] On the one hand, the main water distribution pipe 701 can provide positioning and support for the cooling packing 6. On the other hand, the hot water flows from low to high in the main water distribution pipe 701, eventually flowing to the spray branch pipe 702 for spraying. When the hot water flows from low to high, it also forms heat exchange with the cooling packing 6 in the packing installation chamber 3 (heat is transferred through the main water distribution pipe), resulting in better heat dissipation efficiency.

[0032] In some embodiments, the mating hole 62 is located at the center of the cooling packing 6.

[0033] In some embodiments, the cooling packing 6 consists of at least two wet curtain blocks 63, which are stacked one on top of the other to form the cooling packing.

[0034] In some embodiments, each wet curtain block 63 has a through hole running vertically. When the wet curtain blocks 63 are stacked vertically, the holes of the wet curtain blocks 63 correspond vertically to form the aforementioned mating holes.

[0035] In some embodiments, thanks to the limiting effect of the water distribution main pipe 701 on each wet curtain block in a specified direction through the mating hole 62 (the wet curtain block is restricted by the water distribution main pipe to not move radially along the water distribution main pipe, but can only rotate circumferentially), after multiple wet curtain blocks are stacked, the position of any wet curtain block can be finely adjusted circumferentially by using the water distribution main pipe 701 as a fulcrum, so that the stacking position of the stacked wet curtain blocks or the correspondence of the wet curtain channels meets the required requirements. For example, the wet curtain channels of the stacked wet curtain blocks can be directly aligned vertically, or the wet curtain channels of the stacked wet curtain blocks can satisfy the following non-direct correspondence.

[0036] In some embodiments, the evaporative cooling pad 63 includes two types of corrugated paper cores (631a, 631b), with multiple sheets of each type of corrugated paper core. The two types of corrugated paper cores are stacked sequentially in an alternating order to form a multi-layer structure. The evaporative cooling pad channel is located between adjacent corrugated paper cores, or it can be understood as the space enclosed by the stacking of adjacent corrugated paper cores.

[0037] In some embodiments, each corrugated paper core has a front (glossy) side and a back (rough) side.

[0038] The wavy design of the corrugated paper core forms a first ridge (also known as a front crest) that protrudes from the front and a second ridge (also known as a back crest) that protrudes from the back. The second ridge forms the valley area between two adjacent first ridges, or the first ridge forms the valley area between two adjacent second ridges.

[0039] When two types of corrugated paper cores are stacked, the ridges (first ridge and second ridge) of the two types of corrugated paper cores are oriented differently. In the projection direction of the stacking direction, the lines formed by the projections of the ridges of the two types of corrugated paper cores intersect.

[0040] In some embodiments, when two corrugated paper cores are stacked sequentially to form a multilayer structure, the following configuration is made: the front side 632a of the first corrugated paper core 631a corresponds to the back side 633b of the adjacent second corrugated paper core 631b, and the back side 633a of the first corrugated paper core 631a corresponds to the front side 632b of another adjacent second corrugated paper core 631b; and the following configuration is made: the first ridge 634a of the first corrugated paper core 631a abuts against the second ridge 635b of the adjacent second corrugated paper core 631b, and the second ridge 635a of the first corrugated paper core 631a abuts against the first ridge 634b of another adjacent second corrugated paper core 631b.

[0041] Adhesive 636 is provided on the first ridge of each corrugated paper core along the length of the first ridge. The adhesive 636 extends along the length of the first ridge and, when the first ridge of any corrugated paper core comes into contact with the second ridge of an adjacent corrugated paper core, the adhesive 636 is configured to bond the two different ridges together. The adhesive 636 can be cured on the first ridge and on the second ridge at the part that comes into contact with the first ridge.

[0042] In some embodiments, adhesive 636 is an adhesive that has a certain waterproof capability after curing, to ensure that the adhesive will not or will not easily soften after long-term immersion in water.

[0043] In this embodiment, on one hand, adhesive 636 is used to bond the first ridge of the corrugated paper core to the second ridge of the adjacent corrugated paper core (bonding, the part where the second ridge and the first ridge abut against each other forms a connection position, adhesive position, bonding position); on the other hand, adhesive 636 is also used to make the first ridge form a water-resistant strong support ridge reinforced by adhesive (thanks to the adhesive set along the length of the first ridge). When the whole is used as a wet curtain and after getting wet, the whole is less likely to collapse.

[0044] Furthermore, in some embodiments, adhesive 636 is disposed on the front (glossy) side of the corrugated paper core: when the corrugated paper core is configured with a glossy front and a textured back, it does not significantly affect the heat dissipation performance of the wet curtain. This is because the heat dissipation area of ​​the front (glossy) side of the paper is relatively small (the number of fibers on the glossy side is less than that on the textured side), and the adhesive further causes the first ridge of the corrugated paper core to form a protruding solid adhesive. The protruding solid adhesive provides additional heat dissipation surface, replacing the glossy portion covered by the adhesive, so as not to weaken the heat dissipation effect of the front (glossy) side or to weaken it excessively.

[0045] The second ridge of the paper is only bonded to the contact point with the first ridge of the adjacent paper, thus preserving the heat dissipation performance of the reverse side (textured side) of the paper to a greater extent.

[0046] In some embodiments, adhesive 636 extends along the slope of the corrugated paper core to form extended adhesive wings 637.

[0047] The cured extended adhesive wings 637, on the one hand, increase the overall support strength along the length of the ridge, and on the other hand, in the convex direction of the ridge, the extended adhesive wings improve the elasticity of this corrugated paper core. Overall, it can better resist damage and deformation of the wet curtain block during transportation and stacking, and better ensure the support and shape retention after being wetted.

[0048] In some embodiments, the extension amount L1 of the extended adhesive wing 637 in the direction of the crest difference is 1cm-4cm. Combined with the other dimensional data below, under this dimensional data, the setting of the extended adhesive wing will not weaken the heat dissipation effect of the front (glossy surface) or will not weaken the heat dissipation effect of the front (glossy surface) too much, and a good support and elasticity effect is obtained.

[0049] In some embodiments, at least two wet curtain blocks are stacked one on top of the other to form a cooling filler, and each wet curtain block has the aforementioned adhesive.

[0050] With the same evaporative cooling pad height, compared to a cooling packing material composed of a single evaporative cooling pad block, the above-mentioned cooling packing material formed by stacking multiple evaporative cooling pad blocks reduces the height of each evaporative cooling pad block and correspondingly shortens the continuous length of the adhesive on the first ridge of the corrugated paper core in each evaporative cooling pad block. This reduces the likelihood of the cured adhesive breaking.

[0051] In some embodiments, at least two wet curtain blocks are stacked vertically to form a cooling packing material, and the stacked wet curtain blocks form a non-single channel for water flow.

[0052] That is, at least some sub-channels of the upper wet curtain block's wet curtain channel are not directly corresponding to the sub-channels of the lower wet curtain block's wet curtain channel. This allows water that originally flowed down from one sub-channel of the upper wet curtain block's wet curtain channel to be received by the walls of at least two sub-channels of the lower wet curtain block's wet curtain channel. This creates a more tortuous water flow path between the different overlapping wet curtain blocks, resulting in better heat dissipation when the water passes through the cooling packing from top to bottom.

[0053] In some embodiments, the crest spacing L2 of adjacent crests (between adjacent first ridges or between adjacent second ridges) on the same corrugated paper core is 1.5cm-2cm.

[0054] The peak difference L3 between the front and back peaks on the same corrugated paper core (the sum of the protrusion distances of the first ridge and the second ridge) is 0.5cm-1cm.

[0055] The angle between the directions of the two corrugated paper cores (specifically, the angle between the first ridge of the first corrugated paper core and the first ridge of the second corrugated paper core, or the angle between the second ridge of the first corrugated paper core and the second ridge of the second corrugated paper core) is 40°-50°.

[0056] In some embodiments, the included angle A1 between the two slopes on which the ridge is located does not exceed 90°.

[0057] Preferably, the included angle is 70°-90°.

[0058] In some embodiments, the packing installation chamber 3 may be arranged in a cylindrical shape to better fit the quasi-cylindrical wet curtain block.

[0059] In some embodiments, the packing installation chamber 3 is further provided with a support frame 9 to support and hold the cooling packing in the packing installation chamber.

[0060] In some embodiments, when the cooling packing has a mating hole and the evaporative cooling pad that makes up the cooling packing is cylindrical, the mating hole can be correspondingly set at the center of the evaporative cooling pad, and the axis of the mating hole coincides with the axis of the evaporative cooling pad.

[0061] In some embodiments, cooled water can be recovered at the water collection pan for use in cooling systems, air supply systems, etc.

[0062] In fact, this embodiment also discloses a cooling tower, which uses the cooling packing material of any of the above embodiments.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cooling packing material for cooling towers, characterized in that, Includes at least one wet curtain panel; The wet curtain block includes two types of corrugated paper cores, with multiple sheets of each type. The two types of corrugated paper cores are stacked in a cross order to form a multi-layer structure. The space enclosed by the two adjacent wavy paper cores stacked together forms the wet curtain channel; Each corrugated paper core has a front and a back; A first ridge protruding from the front and a second ridge protruding from the back are formed on the wavy paper core. The second ridge is formed in the valley area between two adjacent first ridges, and the first ridge is formed in the valley area between two adjacent second ridges. When two types of corrugated paper cores are stacked, the ridges of the two types of corrugated paper cores face different directions. In the projection direction of the stacking direction, the lines formed by the projections of the ridges of the two types of corrugated paper cores intersect. When two types of corrugated paper cores are stacked in sequence to form a multi-layer structure, the following configuration is established: the front of the first type of corrugated paper core corresponds to the back of the adjacent second type of corrugated paper core, and the back of the first type of corrugated paper core corresponds to the front of another adjacent second type of corrugated paper core; and the following configuration is established: the first ridge of the first type of corrugated paper core abuts against the second ridge of the adjacent second type of corrugated paper core, and the second ridge of the first type of corrugated paper core abuts against the first ridge of another adjacent second type of corrugated paper core. Adhesive is provided on the first ridge of each corrugated paper core along the length of the first ridge. The adhesive extends along the length of the first ridge, and when the first ridge of any corrugated paper core comes into contact with the second ridge of an adjacent corrugated paper core, the adhesive forms a bond between the two different ridges. The adhesive is also cured on the first ridge and at the location on the second ridge that comes into contact with the first ridge.

2. The cooling packing material according to claim 1, characterized in that, The cooling packing consists of at least two wet curtain blocks, which are stacked one on top of the other to form the cooling packing.

3. The cooling packing material according to claim 2, characterized in that, Each wet curtain panel is equipped with a through hole running vertically, and the holes of adjacent wet curtain panels stacked vertically correspond vertically. The main water distribution pipe of the cooling tower passes sequentially through the holes of multiple stacked wet curtain blocks.

4. The cooling packing material according to claim 2, characterized in that, At least some sub-channels of the wet curtain channel of the upper wet curtain block do not correspond directly to the sub-channels of the wet curtain channel of the lower wet curtain block; Water flowing down from any one of the sub-channels of the wet curtain channel of the upper wet curtain block is received by the walls of at least two sub-channels of the wet curtain channel of the lower wet curtain block.

5. The cooling packing material according to claim 1, characterized in that, The adhesive extends along the slope of the corrugated paper core, forming extended adhesive wings.

6. The cooling packing material according to claim 5, characterized in that, The extension of the extended rubber flap in the direction of the wave crest difference is 1cm-4cm; The distance between adjacent crests on the same corrugated paper core is 1.5cm-2cm; The peak value difference between the front and back peaks on the same corrugated paper core is 0.5cm-1cm; The two types of corrugated paper cores intersect at an angle of 40°-50°. The angle between the two slopes where the ridge is located is 70°-90°.

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