Internal and external dual-circulation cooling water tank

Abstract

The utility model relates to an internal and external double-circulation cooling water tank, which belongs to the technical field of cooling equipment, and comprises a cooling tank, a balance tank, an internal circulation pipeline and an external circulation cooling pipeline, the cooling tank is provided with a main body tank and a first overflow tank, and the balance tank comprises a circulation tank and a second overflow tank. The first overflow tank is provided with a water outlet communicated with the circulating tank, the outer circulating cooling pipeline is communicated with the main body tank and the second overflow tank, and the inner circulating pipeline is communicated with the main body tank and the circulating tank. Therefore, the cooling tank can obtain high-speed water flow of internal circulation through the internal circulation pipeline under the condition of low-flow water replenishing speed of the external circulation cooling pipeline, so that the pipe diameter and the flow of the external circulation cooling pipeline are greatly reduced, the load of the external circulation cooling pipeline is reduced, the utilization efficiency is improved, and water and energy are saved.

Description

Technical Field

[0001] This utility model belongs to the field of cooling equipment technology, and specifically relates to an internal and external dual circulation cooling water tank. Background Technology

[0002] The production process of long glass fiber reinforced thermoplastic composites typically involves impregnating continuous glass fiber bundles through a die filled with molten polymer, followed by water cooling, and finally drawing and winding or pelletizing to obtain the long glass fiber reinforced thermoplastic composite. In this process, after the glass fiber bundles are impregnated with the high-temperature molten polymer, they are drawn out through a specific aperture to form high-temperature strips. The molten polymer on the composite strips needs to be rapidly cooled and solidified onto the glass fiber surface, thus completing the composite of the polymer material and glass fiber.

[0003] There are usually two cooling methods for high-temperature material strips. The first is to spray multiple cooling water channels from top to bottom to cool and solidify the material strips. The second is to cool and solidify the high-temperature material strips through a high-flow water tank.

[0004] In existing technologies, the top-down cooling method using multiple cooling water sprays has the disadvantage of uneven cooling of composite strips due to the difficulty in precisely controlling the spray speed. At the same time, the impact of high-speed water flow can cause the surface of the strips to be rough, resulting in defects in subsequent processes. In the high-flow water tank cooling method, the high-temperature strips need to be suspended in the cooling water flow, and a large amount of cooling water does not come into contact with the surface of the strips. Therefore, the water flow rate of the water tank is much higher than the actual water flow required for cooling the strips. Large-diameter cooling water pipelines are required to provide high-flow cooling water, resulting in resource waste.

[0005] Therefore, a dual-circulation cooling water tank with uniform cooling and energy saving is urgently needed. Utility Model Content

[0006] This invention provides an internal and external dual-circulation cooling water tank to solve the technical problem in the prior art where the cooling water flow rate in the cooling tank is much greater than the actual cooling water flow rate required for the material strip.

[0007] This utility model is achieved through the following technical solution: a dual-circulation cooling water tank, including a cooling tank, a balancing tank, an internal circulation pipeline and an external circulation cooling pipeline. The cooling tank is provided with a main tank and a first overflow tank. The balancing tank includes a circulation tank and a second overflow tank. The first overflow tank is provided with a drain outlet that communicates with the circulation tank. The external circulation cooling pipeline communicates with the main tank and the second overflow tank. The internal circulation pipeline communicates with the main tank and the circulation tank.

[0008] To better realize this utility model, further optimizations are made to the above structure. The internal circulation pipeline includes an internal circulation water pump, a first pipeline, and a second pipeline. One end of the first pipeline is connected to the outlet end of the internal circulation water pump and the other end is connected to the main body tank. One end of the second pipeline is connected to the inlet end of the internal circulation water pump and the other end is connected to the circulation tank.

[0009] To better realize this utility model, further optimizations are made to the above structure. The external circulation cooling pipeline includes an external circulation chilled pump, a third pipeline and a fourth pipeline. One end of the third pipeline is connected to the outlet end of the external circulation chilled pump and the other end is connected to the main body tank. One end of the fourth pipeline is connected to the inlet end of the external circulation chilled pump and the other end is connected to the second overflow tank.

[0010] To better realize this utility model, further optimization is made to the above structure. The balance tank is provided with a first partition, which divides the balance tank into the circulation tank and the second overflow tank. The height of the first partition is lower than the height of the balance tank.

[0011] To better realize this utility model, the above structure is further optimized, and the volume of the circulation tank is greater than the volume of the second overflow tank.

[0012] To better realize this utility model, the above structure is further optimized. The cooling tank is formed by two end plates, two side plates and a first bottom plate. Two second partitions are provided between the two side plates. The bottom of the two second partitions is connected to the second bottom plate. There are gaps between the second partitions and the adjacent end plates, and between the second bottom plate and the first bottom plate. The gaps are interconnected to form the first overflow tank. The two side plates, the two second partitions and the second bottom plate form the main tank.

[0013] To better realize this utility model, the above structure is further optimized, and the drain outlet is set on the first base plate.

[0014] To better realize this utility model, the above structure is further optimized, and the second partition and the end plate are of the same height and are both lower than the height of the side plate.

[0015] To better realize this utility model, the above structure is further optimized by including valves, and the valves are provided on both the internal circulation pipeline and the external circulation cooling pipeline.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] This utility model provides a dual-circulation cooling water tank comprising a cooling tank, a balancing tank, an internal circulation pipeline, and an external circulation cooling pipeline. The cooling tank has a main body and a first overflow tank. The balancing tank includes a circulation tank and a second overflow tank. The first overflow tank has a drain outlet connected to the circulation tank. The external circulation cooling pipeline connects the main body and the second overflow tank, and the internal circulation pipeline connects the main body and the circulation tank. With this structure, the external circulation cooling pipeline provides heat exchange and cooling to the cooling tank, while the internal circulation pipeline provides high-flow water circulation. Thus, even with a low-flow-rate replenishment of the external circulation cooling pipeline, the cooling tank can obtain a high-speed internal circulation water flow through the internal circulation pipeline. This significantly reduces the pipe diameter and flow rate of the external circulation cooling pipeline, lowers the load on the external circulation cooling pipeline, improves utilization efficiency, and saves water and energy, making this utility model more practical. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the internal and external dual-circulation cooling water tank in this utility model;

[0020] Figure 2 This is a front view of the internal and external dual-circulation cooling water tank in this utility model.

[0021] In the picture:

[0022] 1-Cooling tank; 2-Balancing tank; 3-Main tank; 4-First overflow tank; 5-Circulation tank; 6-Second overflow tank; 7-Drain outlet; 8-Internal circulation water pump; 9-First pipeline; 10-Second pipeline; 11-External circulation chilled water pump; 12-Third pipeline; 13-Fourth pipeline; 14-First partition; 15-End plate; 16-Side plate; 17-First bottom plate; 18-Second partition; 19-Second bottom plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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 do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should also be noted that, 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Example 1:

[0027] In this embodiment, an internal and external dual-circulation cooling water tank is used, such as Figure 1 and Figure 2 As shown, the system includes a cooling tank 1, a balancing tank 2, an internal circulation pipeline, and an external circulation cooling pipeline. Specifically, the cooling tank 1 has a main tank 3 and a first overflow tank 4. When the water in the main tank 3 is full, it can overflow into the first overflow tank 4. The balancing tank 2 includes a circulation tank 5 and a second overflow tank 6. When the water in the circulation tank 5 is full, it can overflow into the second overflow tank 6. The first overflow tank 4 has a drain outlet 7 connected to the circulation tank 5. The water in the first overflow tank 4 is directly discharged into the circulation tank 5 through the drain outlet 7. The external circulation cooling pipeline connects the main tank 3 and the second overflow tank 6. The external circulation cooling pipeline is used to provide low-flow cooling water circulation for cooling. The internal circulation pipeline connects the main tank 3 and the circulation tank 5. The internal circulation pipeline is used to provide high-flow internal water circulation kinetic energy.

[0028] By adopting this structure, the external circulation cooling pipe provides heat exchange and cooling for the cooling tank 1, while the internal circulation pipe provides high-flow water circulation. Thus, under the condition of low-flow water replenishment rate of the external circulation cooling pipe, the internal circulation pipe enables the cooling tank 1 to obtain a high-speed internal water flow, which greatly reduces the pipe diameter and flow rate of the external circulation cooling pipe, reduces the load on the external circulation cooling pipe, improves utilization efficiency, saves water and energy, and makes the utility model more practical.

[0029] As one specific implementation method of this embodiment, such as Figure 1 and Figure 2 As shown, the internal circulation pipeline includes an internal circulation water pump 8, a first pipeline 9, and a second pipeline 10. The internal circulation water pump 8 provides the kinetic energy for high-speed internal water circulation. One end of the first pipeline 9 is connected to the outlet of the internal circulation water pump 8, and the other end is connected to the main tank 3. One end of the second pipeline 10 is connected to the inlet of the internal circulation water pump 8, and the other end is connected to the circulation tank 5. After being cooled by the feed belt in the main tank 3, the water overflows into the first overflow tank 4, and then enters the circulation tank 5 through the drain outlet 7. It is then pumped to the internal circulation water pump 8 through the second pipeline 10, and then returns to the main tank 3 through the first pipeline 9, thus achieving high-flow-rate internal water circulation.

[0030] Furthermore, such as Figure 1 and Figure 2 As shown, the external circulation cooling pipeline includes an external circulation chilled pump 11, a third pipeline 12, and a fourth pipeline 13. One end of the third pipeline 12 is connected to the outlet of the external circulation chilled pump 11, and the other end is connected to the main tank 3. One end of the fourth pipeline 13 is connected to the inlet of the external circulation chilled pump 11, and the other end is connected to the second overflow tank 6. After being cooled by the feed belt in the main tank 3, the water overflows into the first overflow tank 4, then enters the circulation tank 5 through the drain outlet 7, overflows into the second overflow tank 6, and is then pumped back to the external circulation chilled pump 11 through the fourth pipeline 13. Finally, the water returns to the main tank 3 through the third pipeline 12, thus realizing external cooling circulation.

[0031] As an optimization, such as Figure 1 As shown, the balance tank 2 is provided with a first baffle 14, which divides the balance tank 2 into a circulation tank 5 and a second overflow tank 6. The height of the first baffle 14 is lower than the height of the balance tank 2, so that the water in the circulation tank 5 can overflow over the first baffle 14 into the second overflow tank 6 without overflowing outside the balance tank 2. The volume of the circulation tank 5 is greater than the volume of the second overflow tank 6, ensuring that more water in the balance tank 2 participates in the high-flow internal water circulation of the internal circulation pipe, while the external circulation cooling pipe only needs to meet the low-flow circulation requirement. The flow rate of the internal circulation pipe is approximately 10 to 50 times that of the external circulation cooling pipe.

[0032] In this embodiment, as Figure 1 and Figure 2As shown, the cooling tank 1 is formed by two end plates 15, two side plates 16, and a first bottom plate 17. Two second partitions 18 are provided between the two side plates 16, and the bottom of the two second partitions 18 is connected to a second bottom plate 19. There are gaps between the second partitions 18 and the adjacent end plates 15, and between the second bottom plate 19 and the first bottom plate 17. These gaps are interconnected to form the first overflow tank 4. The two side plates 16, the two second partitions 18, and the second bottom plate 19 form the main tank 3. This arrangement allows the main tank 3 to be suspended in the cooling tank 1. When the water in the main tank 3 is full, it overflows through the second partitions 18 at both ends and into the first overflow tank 4. The drain outlet 7 is provided on the first bottom plate 17 so that the overflowing water can be directly discharged into the circulation tank 5 through the drain outlet 7. The high flow rate provided by the internal circulation pipeline ensures that the water level in the main tank 3 is always higher than the second partitions 18, ensuring that the material belt is always suspended in the water.

[0033] In this embodiment, the second partition 18 and the end plate 15 are at the same height and are both lower than the height of the side plate 16, so that the material strip can enter the main body trough 3 horizontally along the direction of the second partition 18 and the end plate 15, and then leave the main body trough 3 horizontally. The material strip will not bend and will always be suspended in the water that is constantly overflowing from the main body trough 3, so that it can be fully cooled.

[0034] In this embodiment, valves are also included. The valves are provided on both the internal circulation pipeline and the external circulation cooling pipeline. The flow rates of the internal circulation pipeline and the external circulation cooling pipeline are adjusted by the valves to ensure that the internal circulation pipeline and the external circulation cooling pipeline maintain a dynamic balance.

[0035] When using the aforementioned dual-circulation cooling water tank, firstly, start the external circulation cooling pipe and close the internal circulation pipe. External cooling water is supplied to the main tank 3 through the third pipe 12. After the tank is full, the supplemented cooling water overflows from both ends of the main tank 3 into the first overflow tank 4, and then flows into the circulation tank 5 through the drain outlet 7. After the circulation tank 5 is full, excess water overflows from the first baffle 14 on one side of the circulation tank 5 into the second overflow tank 6, and then enters the external circulation chilled water pump 11 through the fourth pipe 13. At this time, the water undergoes heat exchange through the external circulation chilled water pump 11, and the water temperature drops to the required temperature. Then, it is pumped back to the main tank 3 by the third pipe 12, thus forming a complete external circulation. Then, the upper... The internal circulation pipeline is described above. The internal circulation water pump 8 pumps the cooling water in the circulation tank 5 to the main tank 3. The cooling water then overflows into the first overflow tank 4 and then flows back into the circulation tank 5 through the drain port 7, forming a complete internal circulation. At this time, the external circulation cooling pipeline can be closed, so that the cooling water only flows in the internal circulation pipeline. The water flow rate of the internal circulation pipeline can be easily adjusted by simply adjusting the power of the internal circulation water pump 8. When the high-temperature strip of the long glass fiber reinforced thermoplastic composite material enters the main tank 3 horizontally and is suspended in the main tank 3, the high-temperature strip enters horizontally from the water flow at one end of the main tank 3 and leaves horizontally from the water flow at the other end, ensuring that the high-temperature strip is always suspended in the cooling water to obtain a sufficient cooling effect.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A dual-circulation cooling water tank, characterized in that: It includes a cooling tank (1), a balancing tank (2), an internal circulation pipeline and an external circulation cooling pipeline. The cooling tank (1) is provided with a main tank (3) and a first overflow tank (4). The balancing tank (2) includes a circulation tank (5) and a second overflow tank (6). The first overflow tank (4) is provided with a drain outlet (7) that communicates with the circulation tank (5). The external circulation cooling pipeline connects the main tank (3) and the second overflow tank (6). The internal circulation pipeline connects the main tank (3) and the circulation tank (5).

2. The dual-circulation cooling water tank according to claim 1, characterized in that: The internal circulation pipeline includes an internal circulation water pump (8), a first pipeline (9), and a second pipeline (10). One end of the first pipeline (9) is connected to the outlet of the internal circulation water pump (8), and the other end is connected to the main body tank (3). One end of the second pipeline (10) is connected to the inlet of the internal circulation water pump (8), and the other end is connected to the circulation tank (5).

3. The dual-circulation cooling water tank according to claim 1, characterized in that: The external circulation cooling pipeline includes an external circulation chilled pump (11), a third pipeline (12) and a fourth pipeline (13). One end of the third pipeline (12) is connected to the outlet of the external circulation chilled pump (11) and the other end is connected to the main tank (3). One end of the fourth pipeline (13) is connected to the inlet of the external circulation chilled pump (11) and the other end is connected to the second overflow tank (6).

4. The dual-circulation cooling water tank according to claim 1, characterized in that: The balance tank (2) is provided with a first partition (14), which divides the balance tank (2) into the circulation tank (5) and the second overflow tank (6). The height of the first partition (14) is lower than the height of the balance tank (2).

5. The dual-circulation cooling water tank according to claim 4, characterized in that: The volume of the circulation tank (5) is greater than the volume of the second overflow tank (6).

6. The dual-circulation cooling water tank according to claim 1, characterized in that: The cooling tank (1) is formed by two end plates (15), two side plates (16) and a first bottom plate (17). Two second partitions (18) are provided between the two side plates (16). The bottom of the two second partitions (18) is connected to a second bottom plate (19). There are gaps between the second partitions (18) and the adjacent end plates (15), and between the second bottom plate (19) and the first bottom plate (17). The gaps are interconnected to form the first overflow tank (4). The two side plates (16), the two second partitions (18) and the second bottom plate (19) form the main tank (3).

7. The dual-circulation cooling water tank according to claim 6, characterized in that: The drain outlet (7) is located on the first base plate (17).

8. The dual-circulation cooling water tank according to claim 6, characterized in that: The second partition (18) and the end plate (15) are at the same height and are both lower than the height of the side plate (16).

9. The dual-circulation cooling water tank according to claim 1, characterized in that: It also includes valves, which are installed on both the internal circulation pipeline and the external circulation cooling pipeline.

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