A waterproof membrane water curtain cooling device

Abstract

This utility model discloses a water curtain cooling device for waterproof membranes, relating to the field of auxiliary processing equipment for waterproof membranes. The utility model includes: a water-cooled box, with a first nozzle group and a second nozzle group arranged on the top and bottom surfaces of its inner cavity along the material travel direction; an air inlet box, connected to the inner cavity of the water-cooled box via a first feeding channel, with a second feeding channel parallel to the first feeding channel on the side opposite to it; and through-flow first and second air inlets arranged on the upper and lower sides of the sidewall of the water-cooled box relative to the first feeding channel; and an air outlet box, connected to the inner cavity of the water-cooled box via a first discharge channel, with a second discharge channel parallel to the first discharge channel on the side opposite to it; and through-flow first and second air outlets arranged on the upper and lower sides of the sidewall of the water-cooled box relative to the first discharge channel. This invention solves the problems of uneven cooling effect and poor performance of existing waterproof membrane water-cooling devices.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary processing equipment for waterproof membranes, specifically, a water curtain cooling device for waterproof membranes. Background Technology

[0002] Currently, the cooling process in asphalt roll production lines mainly uses the following two traditional methods, both of which have significant technical bottlenecks.

[0003] For example, immersion cooling involves directly immersing or passing the high-temperature roll material through a long, water-filled tank. Using an open or semi-open circulation system, the cooling water is rapidly heated and then drained, requiring a continuous replenishment of large amounts of cold water, resulting in enormous water consumption and failing to meet modern environmental protection requirements. When the roll material is pulled out of the water, a "water film" forms between adjacent support rollers. This film hinders the evaporation of moisture from the lower surface of the roll material, leading to insufficient cooling of the lower surface and a higher temperature than the upper surface.

[0004] One-way spray water curtain cooling is an improvement on water tank cooling, where water is sprayed from above the roll material using nozzles to form a curtain. While slightly better than immersion cooling, it is still a "pouring" method, with most of the water flowing away unused. The water mainly contacts the upper surface, while the lower surface is cooled only by conduction and a small amount of splashing, resulting in a larger temperature difference between the upper and lower surfaces than immersion cooling, leading to more serious product quality issues. Furthermore, the water flow is difficult to evenly cover the entire width, easily creating cooling dead zones.

[0005] Large drops of water falling or flowing can easily leave water stains on the surface of the roll material, or wash away the surface mineral release agent (such as talc), affecting the product's appearance and anti-stick properties. Utility Model Content

[0006] The purpose of this invention is to provide a water curtain cooling device for waterproof membranes, which solves the problems of uneven cooling effect and poor performance of existing water cooling devices for waterproof membranes.

[0007] To solve the above problems, the present invention adopts the following technical means:

[0008] A water curtain cooling device for waterproof membrane includes:

[0009] The water-cooled box has a first nozzle group and a second nozzle group arranged on the top and bottom surfaces of its inner cavity along the material travel direction, respectively. The top and bottom surfaces of its outer wall are respectively provided with a first water tank connected to the first nozzle group and a second water tank connected to the second nozzle group. The two ends of the outer wall are respectively provided with a first feeding channel and a first discharging channel.

[0010] Conveying rollers are respectively disposed on the first feed channel side and the first discharge channel side of the water-cooled box;

[0011] The air inlet box is connected to the inner cavity of the water-cooled box through the first feeding channel. A second feeding channel parallel to the first feeding channel is constructed on the side of the air inlet box opposite to the first feeding channel. The top and bottom surfaces of the air inlet box are respectively connected to air inlet pipes. The side walls of the water-cooled box are respectively arranged with a first air inlet channel and a second air inlet channel running through them on the upper and lower sides of the first feeding channel.

[0012] The air outlet box is connected to the inner cavity of the water-cooled box through the first discharge channel. A second discharge channel parallel to the first discharge channel is constructed on the side of the air outlet box opposite to the first discharge channel. The top and bottom surfaces of the air inlet box are respectively connected to exhaust pipes. The side walls of the water-cooled box are respectively arranged with the first air outlet and the second air outlet on the upper and lower sides of the first discharge channel.

[0013] Both the first nozzle group and the second nozzle group consist of several nozzles, which are arranged at an angle.

[0014] Preferably, the top horizontal surfaces of the two conveying rollers are located above the first feeding channel and the second feeding channel, and fixed pulleys are respectively installed at the upper and lower ends of the feeding channel and the discharging channel.

[0015] Furthermore, the top surface of the first water tank and the bottom surface of the second water tank are respectively connected to water supply pipes for water supply.

[0016] Furthermore, the first nozzle assembly includes a first upper nozzle located in the middle of the top surface of the inner cavity of the water-cooled box. Along the width direction of the water-cooled box, two second upper nozzles are symmetrically installed on both sides of the first upper nozzle. The first upper nozzle is inclined in the direction opposite to the feeding direction.

[0017] Furthermore, the second upper nozzle is inclined toward the center line of the material conveying direction.

[0018] Furthermore, the second nozzle assembly includes two lower nozzles symmetrically arranged on both sides of the material conveying centerline, with both lower nozzles inclined toward the material conveying centerline.

[0019] This utility model has the following beneficial effects during use:

[0020] The roll material to be cooled enters the water-cooling box through the first feed channel, passes horizontally through the water-cooling box supported by conveyor rollers, and is then output from the first discharge channel. As the roll material passes horizontally through the water-cooling box, it receives bidirectional spray cooling from a first nozzle group located above the roll material and a second nozzle group located below the roll material. Furthermore, by utilizing the inlet and outlet air boxes, a first air chamber is formed above the roll material during its movement, consisting of the upper half of the inlet air box, the first inlet channel, the upper half of the water-cooling box, the first outlet channel, and the upper half of the outlet air box. A second air chamber is formed below the roll material, consisting of the lower half of the inlet air box, the second inlet channel, the lower half of the water-cooling box, the second outlet channel, and the lower half of the outlet air box. By using the air inlet duct to blow air and the exhaust duct to draw air out, relatively independent airflows are created above and below the roll material. Combined with the angled first and second nozzle groups, the powerful suction of the high-speed airflow can quickly remove the wet saturated boundary layer formed on the roll material surface, improving the heat exchange efficiency between the cold water and the roll material and enhancing the water cooling effect. At the same time, the negative pressure suction prevents the water mist from excessively accumulating under gravity, forming "water bridges" or causing water droplets to slide off. Instead, it promotes the formation of a thinner and more evenly distributed water film on the lower surface of the roll material, increasing the effective evaporation area. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a front view structural diagram of the present utility model.

[0023] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA.

[0024] Figure 4 for Figure 2 A schematic diagram of the side section structure.

[0025] Among them, 1-water cooling box, 2-first water tank, 3-second water tank, 4-first feeding channel, 5-first discharging channel, 6-conveying roller, 7-air inlet box, 8-second feeding channel, 9-air inlet pipe, 10-first air inlet duct, 11-second air inlet duct, 12-air outlet box, 13-second discharging channel, 14-exhaust pipe, 15-first air outlet duct, 16-second air outlet duct, 17-fixed pulley, 18-water supply pipe, 19-first upper nozzle, 20-second upper nozzle, 21-lower nozzle. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Please refer to Figures 1 to 4As shown, a water curtain cooling device for waterproof membrane includes:

[0033] The water-cooled box 1 has a first nozzle group and a second nozzle group arranged on the top and bottom surfaces of its inner cavity along the material travel direction, respectively. The top and bottom surfaces of its outer wall are respectively provided with a first water tank 2 connected to the first nozzle group and a second water tank 3 connected to the second nozzle group. The two ends of the outer wall are respectively provided with a first feeding channel 4 and a first discharging channel 5.

[0034] Conveying rollers 6 are respectively disposed on the side of the first feed channel 4 and the first discharge channel 5 of the water-cooled box 1;

[0035] The air inlet box 7 is connected to the inner cavity of the water-cooled box 1 through the first feeding channel 4. A second feeding channel 8 parallel to the first feeding channel 4 is constructed on the side of the air inlet box 7 opposite to the first feeding channel 4. The top and bottom surfaces of the air inlet box 7 are respectively connected to the air inlet pipe 9. The side wall of the water-cooled box 1 is provided with a first air inlet channel 10 and a second air inlet channel 11 that pass through the first feeding channel 4 on the upper and lower sides respectively.

[0036] The air outlet box 12 is connected to the inner cavity of the water-cooled box 1 through the first discharge channel 5. The side of the air outlet box 12 opposite to the first discharge channel 5 is provided with a second discharge channel 13 parallel to it. The top and bottom surfaces of the air inlet box 7 are respectively connected to the exhaust pipe 14. The side wall of the water-cooled box 1 is provided with a first air outlet 15 and a second air outlet 16 on the upper and lower sides of the first discharge channel 5.

[0037] Both the first nozzle group and the second nozzle group consist of several nozzles, which are arranged at an angle.

[0038] In this way, the roll material to be cooled enters the water-cooling box 1 from the first feed channel 4, passes horizontally through the water-cooling box 1 supported by the conveyor roller 6, and is then output from the first discharge channel 5. When the roll material to be cooled passes horizontally through the water-cooling box 1, it can be cooled by bidirectional spray from the first nozzle group located above the roll material and the second nozzle group located below the roll material. Moreover, by utilizing the arrangement of the air inlet box 7 and the air outlet box 12, a first air cavity is formed above the roll material during its movement, consisting of the upper half of the air inlet box 7, the first air inlet channel, the upper half of the water-cooling box 1, the first air outlet channel, and the upper half of the air outlet box 12. A second air cavity is formed below the roll material, consisting of the lower half of the air inlet box 7, the second air inlet channel, the lower half of the water-cooling box 1, the second air outlet channel, and the lower half of the air outlet box 12. By using the air inlet duct 9 for blowing and the exhaust duct 14 for exhaust, relatively independent airflows are created above and below the roll material. Combined with the angled first and second nozzle groups, the powerful suction of the high-speed airflow can quickly remove the wet saturated boundary layer formed on the surface of the roll material, improving the heat exchange efficiency between the cold water and the roll material and enhancing the water cooling effect. At the same time, the negative pressure suction prevents the water mist from excessively accumulating under gravity, forming "water bridges" or causing water droplets to slide off. Instead, it promotes the formation of a thinner and more evenly distributed water film on the lower surface of the roll material, increasing the effective evaporation area.

[0039] To prevent the material between the two conveying rollers 6 from sagging due to its own weight during the movement of the roll material in the water-cooling box 1, the top horizontal surfaces of the two conveying rollers 6 are located above the first feeding channel 4 and the second feeding channel 8, and fixed pulleys 17 are respectively installed at the upper and lower ends of the feeding channel and the discharging channel.

[0040] In this way, by using the upward lifting of the conveyor roller 6 in conjunction with the fixed pulley 17 located in the feed and discharge channels, a certain tension force can be applied to the roll material. This reduces or prevents the portion of the roll material located between the two conveyor rollers 6 from sagging due to gravity, which would affect the water cooling effect and cause a large amount of liquid film to accumulate on the lower surface of the roll material, resulting in dripping.

[0041] Furthermore, the top surface of the first water tank 2 and the bottom surface of the second water tank 3 are respectively connected to water supply pipes 18 for water supply.

[0042] Furthermore, regarding the arrangement of the first nozzle group and the second nozzle group, the first nozzle group includes a first upper nozzle 19 located in the middle of the top surface of the inner cavity of the water-cooled box 1. Along the width direction of the water-cooled box 1, two second upper nozzles 20 are symmetrically installed on both sides of the first upper nozzle 19. The first upper nozzle 19 is inclined in the direction opposite to the feeding direction.

[0043] The second upper nozzle 20 is inclined toward the center line of the material conveying direction.

[0044] Meanwhile, the second nozzle group includes two lower nozzles 21 symmetrically arranged on both sides of the material conveying centerline, and both lower nozzles 21 are inclined towards the material conveying centerline.

Claims

1. A waterproofing membrane water curtain cooling apparatus, characterized by, include: The water-cooled box (1) has a first nozzle group and a second nozzle group arranged on the top and bottom surfaces of its inner cavity along the material travel direction, respectively. The top and bottom surfaces of the outer wall are respectively provided with a first water tank (2) connected to the first nozzle group and a second water tank (3) connected to the second nozzle group. The two ends of the outer wall are respectively provided with a first feeding channel (4) and a first discharging channel (5). Conveying rollers (6) are respectively located on the side of the first feed channel (4) and the side of the first discharge channel (5) of the water-cooled box (1); The air inlet box (7) is connected to the inner cavity of the water-cooled box (1) through the first feeding channel (4). The air inlet box (7) has a second feeding channel (8) parallel to the first feeding channel (4) on the side opposite to it. The top and bottom surfaces of the air inlet box (7) are respectively connected to the air inlet pipe (9). The side wall of the water-cooled box (1) is provided with a first air inlet channel (10) and a second air inlet channel (11) on the upper and lower sides of the first feeding channel (4). The air outlet box (12) is connected to the inner cavity of the water-cooled box (1) through the first discharge channel (5). The side of the air outlet box (12) opposite to the first discharge channel (5) is constructed with a second discharge channel (13) parallel to it. The top and bottom surfaces of the air inlet box (7) are respectively connected with exhaust pipes (14). The side walls of the water-cooled box (1) are arranged with a first air outlet duct (15) and a second air outlet duct (16) on the upper and lower sides of the first discharge channel (5). Both the first nozzle group and the second nozzle group consist of several nozzles, which are arranged at an angle.

2. A water curtain cooling device for waterproofing membrane according to claim 1, wherein, The top horizontal surfaces of the two conveying rollers (6) are located above the first feeding channel (4) and the second feeding channel (8). Fixed pulleys (17) are installed at the upper and lower ends of the first feeding channel (4) and the first discharging channel (5).

3. A water curtain cooling device for waterproofing membrane according to claim 1, wherein, The top surface of the first water tank (2) and the bottom surface of the second water tank (3) are respectively connected to water supply pipes (18).

4. A water curtain cooling device for waterproofing membrane according to claim 1, wherein, The first nozzle group includes a first upper nozzle (19) located in the middle of the top surface of the inner cavity of the water-cooled box (1). The top surface of the inner cavity of the water-cooled box (1) is along the width direction of the water-cooled box (1). Two second upper nozzles (20) are symmetrically installed on both sides of the first upper nozzle (19). The first upper nozzle (19) is inclined in the direction opposite to the feeding direction.

5. A water curtain cooling device for waterproofing membranes as defined in claim 4, wherein, The second upper nozzle (20) is inclined toward the center line of the material conveying direction.

6. A water curtain cooling device for waterproofing membrane according to claim 1, wherein, The second nozzle group includes two lower nozzles (21) symmetrically arranged on both sides of the material conveying centerline, and both lower nozzles (21) are inclined toward the material conveying centerline.

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