Transport cooling device for plastic bellows

Abstract

The application discloses a plastic corrugated pipe transportation cooling device, first, second and third liquid storage grooves are sequentially arranged, a third upper cooling groove is arranged above the third liquid storage groove, two through holes for the plastic corrugated pipe to pass through are arranged on the outer wall of the third upper cooling groove, an elastic liquid sealing ring is arranged on the inner wall of the through hole, and a water injection assembly is matched with the third upper cooling groove; the plastic corrugated pipe transportation cooling device provided by the application recovers the cooling liquid in the cooling process of the plastic corrugated pipe, generates cooling liquid with different temperatures, and directly utilizes the cooling liquid, which is convenient, simple, energy-saving, and the like; after the first and second spout structures mildly cool the plastic corrugated pipe to a certain extent, the plastic corrugated pipe enters the third upper cooling groove to realize efficient immersion cooling, and the cooling liquid overflowing from the third upper cooling groove enters the third liquid storage groove to be utilized; the amount of the leaked cooling liquid at the through hole is realized through the elastic liquid sealing ring.

Description

Technical Field

[0001] This invention relates to the field of plastic corrugated pipe processing, and particularly to a transportation and cooling device for plastic corrugated pipes. Background Technology

[0002] For plastic corrugated pipes with segmented outer surfaces, the extrusion device needs two sets of symmetrically arranged die chains to form the plastic corrugated pipe through the cooperation and separation of the two sets of die chains.

[0003] For efficient cooling of plastic corrugated pipes, a common method is to add multiple nozzles around the pipe. However, this method suffers from problems such as nozzle noise and insufficient cooling efficiency (the liquid droplets ejected from the nozzles are small to avoid damaging the pipe). Because plastic corrugated pipes are rigid, immersion cooling using a cooling trough similar to that used for cables is not feasible. For larger, thin-walled plastic corrugated pipes, there is a strong need for heat dissipation, but a more drastic cooling process is not possible. Summary of the Invention

[0004] The main objective of this invention is to provide a cooling device for transporting plastic corrugated pipes, which aims to solve the problem of the inability to efficiently and gently cool plastic corrugated pipes.

[0005] To achieve the above objectives, the present invention provides a transport and cooling device for plastic corrugated pipes, adapted to a plastic corrugated pipe extrusion device, comprising:

[0006] The base is the foundation of the transport cooling device;

[0007] The first liquid storage tank is disposed on the upper part of the substrate;

[0008] A second liquid storage tank is disposed on the upper part of the substrate, and a second water outlet is provided on the second liquid storage tank;

[0009] The first nozzle assembly includes a first pumping structure and a first nozzle structure connected to each other. The first nozzle structure is positioned corresponding to the first liquid storage tank. The end of the first pumping structure away from the first nozzle structure is connected to the second water outlet.

[0010] A third liquid storage tank is provided on the upper part of the substrate, and a third water outlet is provided on the third liquid storage tank;

[0011] The second nozzle assembly includes a second pumping structure and a second nozzle structure connected to each other. The second nozzle structure is positioned corresponding to the second liquid storage tank. The end of the second pumping structure away from the second nozzle structure is connected to the third water outlet.

[0012] The third upper cooling tank is located above the third liquid storage tank. The outer wall of the third upper cooling tank is provided with two through holes for the plastic corrugated pipe to pass through. An elastic sealing ring is provided on the inner peripheral wall of the through hole.

[0013] The water injection component is configured to match the third upper cooling tank and is used to inject coolant into the third upper cooling tank;

[0014] The first liquid storage tank, the second liquid storage tank, and the third liquid storage tank are arranged sequentially.

[0015] Furthermore, the elastic sealing ring includes a plurality of sub-sealing rings stacked in the thickness direction.

[0016] Furthermore, the thickness of the sub-sealing liquid ring is 2 mm, and the quantity is 5.

[0017] Furthermore, the outer wall of the plastic corrugated pipe is circulated with a corrugated structure, the dimension of the corrugated structure in the length direction of the plastic corrugated pipe is A, the interval between adjacent corrugated structures in the length direction of the plastic corrugated pipe is B, and the elastic sealing ring includes two sub-sealing rings stacked in the thickness direction, the total thickness of the two sub-sealing rings is less than or equal to A+B, the thickness of one of the two sub-sealing rings is greater than or equal to A, and the thickness of the other is greater than or equal to 1mm.

[0018] Furthermore, the through hole is located near the bottom in the height direction of the third upper cooling tank.

[0019] Furthermore, the third upper cooling tank is provided with a water injection hole, wherein the water injection hole is located near the bottom of the third upper cooling tank in the height direction or at the bottom of the third upper cooling tank, and the water injection component is connected to the water injection hole.

[0020] Furthermore, the water injection hole is located at the bottom of the third upper cooling tank, and a baffle plate is also provided corresponding to the water injection hole. The baffle plate is connected to the bottom of the third upper cooling tank and has a gap with the water injection hole.

[0021] Furthermore, a drain outlet is provided at the upper part of the outer wall of the third upper cooling tank in the height direction. The transport cooling device also includes a connecting pipe, one end of which is connected to the drain outlet, and the other end is introduced into the bottom of the third storage tank.

[0022] Furthermore, the substrate is provided with a cooling tank, and a first partition and a second partition are respectively provided along the length of the cooling tank. The first partition and the second partition divide the cooling tank into a first liquid storage tank, a second liquid storage tank and a third liquid storage tank. The first partition and the second partition are recessed into the outer wall of the cooling tank in the height direction, and the height direction of the first partition exceeds that of the second partition.

[0023] Furthermore, the cooling method of the plastic corrugated pipe extrusion device is spray type, and the plastic corrugated pipe extrusion device has a cooling working fluid recovery pipe, and the second liquid storage tank is connected to the cooling working fluid recovery pipe.

[0024] The plastic corrugated pipe transport cooling device provided by this invention recovers coolant during the cooling process of the plastic corrugated pipe, realizing the generation and direct utilization of coolant at different temperatures. It is convenient, simple, and energy-saving. After the plastic corrugated pipe is gently cooled to a certain extent by the first and second nozzle structures, it enters the third upper cooling tank for efficient immersion cooling. The coolant overflowing from the third upper cooling tank enters the third storage tank for utilization. The amount of coolant leaking out of the through hole is controlled by the elastic sealing ring. Attached Figure Description

[0025] Figure 1 This is an overall schematic diagram of a plastic corrugated pipe transport and cooling device according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall view of a transport and cooling device for a plastic corrugated pipe according to an embodiment of the present invention (showing the plastic corrugated pipe);

[0027] Figure 3 This is another overall schematic diagram (showing the plastic corrugated pipe) of a plastic corrugated pipe transport cooling device according to an embodiment of the present invention;

[0028] Figure 4 This is a cross-sectional schematic diagram of a transport and cooling device for a plastic corrugated pipe according to an embodiment of the present invention (showing the plastic corrugated pipe);

[0029] Figure 5 This is a schematic diagram of the matching of the third upper cooling tank and the plastic corrugated pipe in a transport cooling device for a plastic corrugated pipe according to an embodiment of the present invention.

[0030] Figure 6 yes Figure 5 A magnified view of a portion of the image;

[0031] Figure 7 This is a cross-sectional schematic diagram of the transport and cooling device for a plastic corrugated pipe according to the second embodiment of the present invention (showing the plastic corrugated pipe);

[0032] Figure 8 This is a cross-sectional schematic diagram of the transport and cooling device for a plastic corrugated pipe according to the third embodiment of the present invention (showing the plastic corrugated pipe);

[0033] Figure 9 yes Figure 8 A magnified view of a portion of the image.

[0034] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0036] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” “the,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any of the units and all combinations of one or more associated listed items.

[0037] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0038] Reference Figure 1-9 In one embodiment of the present invention, a transport and cooling device for a plastic corrugated pipe, adapted to a plastic corrugated pipe extrusion device, includes:

[0039] The base 100 is the foundation of the transport cooling device;

[0040] The first liquid storage tank 200 is disposed on the upper part of the base 100;

[0041] The second liquid storage tank 300 is disposed on the upper part of the base 100, and the second liquid storage tank 300 is provided with a second water outlet 310.

[0042] The first nozzle assembly 400 includes a first pumping structure 410 and a first nozzle structure 420 connected to each other. The first nozzle structure 420 is positioned corresponding to the first liquid storage tank 200. The end of the first pumping structure 410 away from the first nozzle structure 420 is connected to the second water outlet 310.

[0043] A third liquid storage tank 500 is disposed on the upper part of the base 100, and a third water outlet 510 is provided on the third liquid storage tank 500.

[0044] The second nozzle assembly 600 includes a second pumping structure 610 and a second nozzle structure 620 connected to each other. The second nozzle structure 620 is positioned corresponding to the second liquid storage tank 300. One end of the second pumping structure 610 away from the second nozzle structure 620 is connected to the third outlet 510.

[0045] The third upper cooling tank 700 is located above the third liquid storage tank 500. The outer wall of the third upper cooling tank 700 is provided with two through holes 710 for the plastic corrugated pipe to pass through. An elastic sealing ring 720 is provided on the inner peripheral wall of the through hole 710.

[0046] The water injection component 800 is matched with the third upper cooling tank 700 and is used to inject coolant into the third upper cooling tank 700.

[0047] The first liquid storage tank 200, the second liquid storage tank 300, and the third liquid storage tank 500 are arranged sequentially.

[0048] In existing technologies, a common method for efficiently cooling plastic corrugated pipes is to add multiple nozzles around the pipe. However, this method suffers from problems such as nozzle noise and insufficient cooling efficiency (the liquid droplets ejected from the nozzles are small to avoid damaging the pipe). Because plastic corrugated pipes are rigid, immersion cooling using a cooling trough similar to that used for cables is not feasible. For larger, thin-walled plastic corrugated pipes, there is a strong need for heat dissipation, but a more drastic cooling process is not possible.

[0049] In this invention, the base 100 is used to install and support components on the transport cooling device. For example, the base 100 may have a box-like structure, and other parts can be fixed to the base 100. The first liquid storage tank 200, the second liquid storage tank 300, and the third liquid storage tank 500 can be arranged sequentially abutting each other (e.g., sharing an outer wall) or spaced apart. Regarding the first nozzle assembly 400 and the second nozzle assembly 600, firstly, there can be multiple first nozzle assemblies 400 and multiple second nozzle assemblies 600; secondly, taking the first nozzle assembly 400 as an example, there can be multiple first nozzle structures 420, then one end of the first pumping structure 410 is connected to the second outlet 310, and the other end of the first pumping structure 410 is connected to multiple first nozzle structures 420. The second nozzle assembly 600 utilizes the coolant flowing from the third outlet 510, and the first nozzle assembly 400 utilizes the coolant flowing from the second outlet 310. In this invention, the coolant exists in three temperature states: the coolant flowing from the water injection assembly 800 is low-temperature coolant, the coolant flowing from the second outlet 310 is medium-temperature coolant, and the coolant flowing from the third outlet 510 is high-temperature coolant. The distinctions between low-temperature, medium-temperature, and high-temperature coolants are relative values, such as 25 degrees Celsius, 35 degrees Celsius, and 50 degrees Celsius, respectively. The existence of medium-temperature and high-temperature coolants is based on two considerations: for higher-temperature coolants, the ease of evaporation decreases, thus ensuring a certain degree of cooling effect, especially when the higher-temperature coolant impacts the plastic corrugated pipe in a mist-like manner; when the plastic corrugated pipe extends from the extrusion device, its temperature is high, and impacting it with lower-temperature coolant at this time may cause unfavorable shrinkage of the plastic corrugated pipe (especially when the wall thickness of the plastic corrugated pipe is thin). In this invention, by recovering coolant during the cooling process of the plastic corrugated pipe, coolant at different temperatures is generated and directly utilized, which is convenient, simple, and energy-saving. After the first nozzle structure 420 and the second nozzle structure 620 perform a certain degree of gentle cooling on the plastic corrugated pipe, the plastic corrugated pipe can enter the third upper cooling tank 700 to achieve efficient immersion cooling, and the coolant overflowing from the third upper cooling tank 700 enters the third storage tank 500 for secondary use. Figure 1 The length of the third upper cooling tank 700 in the example is for illustrative purposes only; in reality, it may be longer and narrower. The amount of coolant leaking out of the through-hole 710 is controlled by an elastic sealing ring 720. Specifically, the elastic sealing ring 720 forms an elastic fit with the outer periphery of the plastic bellows, thereby reducing the amount of coolant leakage. The elastic sealing ring 720 can be fixed to the through-hole 710 in a detachable manner, such as with screws, or by adhesive bonding. The elastic sealing ring 720 can be made of materials such as sponge, silicone, or rubber. It should be noted that the elastic sealing ring 720 can also be a layered structure, which will be described in detail in subsequent embodiments.

[0050] In summary, by recovering coolant during the cooling process of the plastic corrugated pipe, coolant at different temperatures is generated and directly utilized, which is convenient, simple, and energy-saving. After the plastic corrugated pipe is gently cooled to a certain extent by the first nozzle structure 420 and the second nozzle structure 620, the plastic corrugated pipe enters the third upper cooling tank 700 for efficient immersion cooling, and the coolant overflowing from the third upper cooling tank 700 enters the third storage tank 500 for utilization. The amount of coolant leaking out at the through hole 710 is controlled by the elastic sealing ring 720.

[0051] Reference Figure 6 In one embodiment, the resilient sealing ring 720 includes a plurality of sub-sealing rings 721 stacked in the thickness direction.

[0052] In this embodiment, the elastic sealing ring 720 is divided into multiple sub-sealing rings 721. The operation of these sub-sealing rings 721 does not interfere with each other. For example, the outer wall of the plastic bellows 900 is circulated with a corrugated structure 910. When one sub-sealing ring 721 is lifted by the corrugated structure 910, the remaining sub-sealing rings 721 may not be lifted, thus forming a good seal with the outer wall of the plastic bellows, thereby ensuring the overall sealing effect of the elastic sealing ring 720. The smaller the thickness of the sub-sealing ring 721, the better the sealing fit it can form with the plastic bellows 900.

[0053] In one embodiment, the thickness of the sub-sealing liquid ring 721 is 2 mm, and the quantity is 5.

[0054] The above dimensions and quantities can accommodate most sizes of plastic corrugated pipes.

[0055] In one embodiment, the outer wall of the plastic corrugated pipe 900 is circulated with a corrugated structure 910. The dimension of the corrugated structure 910 in the length direction of the plastic corrugated pipe 900 is A, and the interval between adjacent corrugated structures 910 in the length direction of the plastic corrugated pipe 900 is B. The elastic sealing ring 720 includes two sub-sealing rings 721 stacked in the thickness direction. The total thickness of the two sub-sealing rings 721 is less than or equal to A+B. The thickness of one of the two sub-sealing rings 721 is greater than or equal to A, and the thickness of the other is greater than or equal to 1 mm.

[0056] In this embodiment, the above dimensional settings are such that when the sub-sealing ring 721 with a thickness greater than or equal to A is fully matched with the corrugated structure 910, at least one other sub-sealing ring 721 can contact the outer wall of the plastic corrugated pipe 900 to form a seal; and when the sub-sealing ring 721 with a thickness greater than or equal to A is partially matched with the corrugated structure 910, at least the remaining portion can contact the outer wall of the plastic corrugated pipe 900 to form a seal.

[0057] In one embodiment, one of the two sub-sealing rings 721 has a thickness equal to A, and the other has a thickness of 1 mm to 5 mm.

[0058] Reference Figure 1-6 In one embodiment, the through hole 710 is located near the bottom of the third upper cooling groove 700 in the height direction.

[0059] The through-hole 710 is located at the lower part of the third upper cooling tank 700 in the height direction, so the plastic corrugated pipe 900 passes through the lower part of the third upper cooling tank 700 in the height direction. Due to the density difference, the coolant in the third upper cooling tank 700 has a lower temperature at the bottom and a higher temperature at the top, thus providing better cooling for the plastic corrugated pipe 900; at the same time, the higher temperature coolant at the top can be discharged into the first reservoir 200 and utilized by the first nozzle assembly 400.

[0060] Reference Figure 8-9 In one embodiment, the third upper cooling tank 700 is provided with a water injection hole 750, wherein the water injection hole 750 is located near the bottom in the height direction of the third upper cooling tank 700 or at the bottom of the third upper cooling tank 700, and the water injection assembly 800 is connected to the water injection hole 750.

[0061] The water injection component 800 injects water from the bottom of the third upper cooling tank 700. Therefore, the initial position of the low-temperature coolant flowing out from the water injection component 800 is at the bottom of the third upper cooling tank 700, which is beneficial for the cooling of the plastic corrugated pipe 900.

[0062] Reference Figure 8-9 In one embodiment, the water injection hole 750 is disposed at the bottom of the third upper cooling tank 700, and a baffle plate 760 is also disposed corresponding to the water injection hole 750. The baffle plate 760 is connected to the bottom of the third upper cooling tank 700 and has a gap with the water injection hole 750.

[0063] If the water injection hole 750 is located near the bottom of the third upper cooling tank 700 in the height direction, it is easy to form a circulation within the third upper cooling tank 700, affecting the cooling effect on the plastic corrugated pipe 900, and a certain amount of low-temperature coolant will also mix into the coolant in the upper layer of the third upper cooling tank 700. In this embodiment, the thickness of the gap is between 0.5cm and 3cm. During use, the coolant flowing out of the water injection assembly 800 impacts the baffle plate 760 after passing through the water injection hole 750, thereby spreading to the periphery of the baffle plate 760, reducing the possibility of circulation within the third upper cooling tank 700.

[0064] Reference Figure 7In one embodiment, a drain outlet 730 is provided at the upper part of the outer wall of the third upper cooling tank 700 in the height direction. The transport cooling device also includes a connecting pipe 740, one end of which is connected to the drain outlet 730, and the other end is led to the bottom of the third storage tank 500.

[0065] The location of the drain outlet 730 ensures that the temperature of the coolant flowing into the connecting pipe 740 through the drain outlet 730 is relatively high; and since the connecting pipe 740 leads to the bottom of the third reservoir 500, the connecting pipe 740 has a heat preservation effect on the coolant with a relatively high temperature.

[0066] In one embodiment, the second nozzle structure 620 and the first nozzle structure 420 are atomizing nozzles.

[0067] The atomizing nozzles form smaller liquid droplets, which reduces the difficulty of liquid droplet evaporation and facilitates the cooling of the plastic corrugated pipe 900. In particular, the second nozzle structure 620 and the first nozzle structure 420 spray medium-temperature coolant and high-temperature coolant, respectively.

[0068] Reference Figure 7 In one embodiment, the substrate 100 is provided with a cooling main tank, and a first partition 110 and a second partition 120 are respectively provided along the length of the cooling main tank. The first partition 110 and the second partition 120 divide the cooling main tank into a first liquid storage tank 200, a second liquid storage tank 300 and a third liquid storage tank 500. The first partition 110 and the second partition 120 are recessed into the outer wall of the cooling main tank in the height direction, and the height direction of the first partition 110 exceeds that of the second partition 120.

[0069] The above-mentioned cooling main tank, together with the first baffle 110 and the second baffle 120, has a relatively simple overall structure, conveniently forming the first liquid storage tank 200, the second liquid storage tank 300, and the third liquid storage tank 500. The fact that the height of the first baffle 110 and the second baffle 120 is lower than the outer wall of the cooling main tank can, to a certain extent, prevent the coolant in the first liquid storage tank 200, the second liquid storage tank 300, and the third liquid storage tank 500 from overflowing into the cooling main tank. When the coolant discharge system of the first reservoir 200 or the second reservoir 300 (e.g., a waste liquid discharge outlet connected to the external environment is provided in the height direction of the outer wall of the first reservoir 200 or the second reservoir 300) fails or malfunctions, the coolant in the first reservoir 200 will overflow into the second reservoir 300. At this time, the coolant already in the second reservoir 300 may experience a slight temperature increase, which will not affect the operation of the first nozzle assembly 400; the coolant in the second reservoir 300 will overflow into the third reservoir 500. At this time, the coolant already in the third reservoir 500 may experience a slight temperature increase, which will not affect the operation of the second nozzle assembly 600.

[0070] In one embodiment, the pumping efficiency of the water injection assembly 800 is D, the pumping efficiency of the second pumping structure 610 is 0.9D-0.95D, and the pumping efficiency of the first pumping structure 410 is 0.6D-0.8D.

[0071] Due to the low temperature of the coolant and the cooling method (immersion cooling), less coolant evaporates and is wasted at the third reservoir 500 and the third upper cooling tank 700. Therefore, the pumping efficiency of the second pumping structure 610 can be close to that of the water injection component 800. Conversely, due to the medium temperature of the coolant and the cooling method (spray cooling), more coolant evaporates and is wasted at the second reservoir 300. Therefore, the pumping efficiency of the first pumping structure 410 should be set relatively low.

[0072] In one embodiment, the cooling method of the plastic corrugated pipe extrusion device is spray type, and the plastic corrugated pipe extrusion device has a cooling working fluid recovery pipe, and the second liquid storage tank 300 is connected to the cooling working fluid recovery pipe.

[0073] In the prior art, for a plastic corrugated pipe 900 with a segmented outer surface, its extrusion device requires two symmetrically arranged sets of die chains. The plastic corrugated pipe 900 is formed by the cooperation and separation of the two sets of die chains. Cooling of the die chains generally involves three methods: natural cooling, air cooling, and water cooling. Water cooling can be achieved through independent coolant circulation pipes or by installing a spray cooling system in the middle of the die chain. Specifically, the independent coolant circulation pipe continuously runs a low-temperature coolant to cool the die in the die chain, while the spray cooling system sprays coolant to lower the temperature of the die chain. For a spray-cooled plastic corrugated pipe extrusion device, the used cooling working fluid has been heated and can be used by the transport cooling device. In this embodiment, after use, the cooling working fluid of the plastic corrugated pipe extrusion device flows into a cooling working fluid recovery pipe, which leads to the second storage tank 300, thus avoiding the energy waste of directly discharging the heated cooling working fluid.

[0074] In summary, the plastic corrugated pipe transport cooling device provided by the present invention recovers coolant during the cooling process of the plastic corrugated pipe, realizing the generation and direct utilization of coolant at different temperatures. This is convenient, simple, and energy-saving. After the plastic corrugated pipe is subjected to a certain degree of gentle cooling by the first nozzle structure 420 and the second nozzle structure 620, the plastic corrugated pipe enters the third upper cooling tank 700 for efficient immersion cooling. The coolant overflowing from the third upper cooling tank 700 enters the third storage tank 500 for utilization. The amount of coolant leaking out of the through hole 710 is controlled by the elastic sealing ring 720.

[0075] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A transport and cooling device for plastic corrugated pipes, adapted to a plastic corrugated pipe extrusion device, characterized in that, include: The base (100) serves as the foundation for the transport cooling device; The first liquid storage tank (200) is disposed on the upper part of the substrate (100); A second liquid storage tank (300) is disposed on the upper part of the substrate (100), and a second water outlet (310) is provided on the second liquid storage tank (300); The first nozzle assembly (400) includes a first pumping structure (410) and a first nozzle structure (420) connected to each other. The first nozzle structure (420) is positioned corresponding to the first liquid storage tank (200). The end of the first pumping structure (410) away from the first nozzle structure (420) is connected to the second water outlet (310). A third liquid storage tank (500) is provided on the upper part of the base (100), and a third water outlet (510) is provided on the third liquid storage tank (500); The second nozzle assembly (600) includes a second pumping structure (610) and a second nozzle structure (620) connected to each other. The second nozzle structure (620) is positioned corresponding to the second liquid storage tank (300). The end of the second pumping structure (610) away from the second nozzle structure (620) is connected to the third outlet (510). The third upper cooling tank (700) is located above the third liquid storage tank (500). The outer wall of the third upper cooling tank (700) is provided with two through holes (710) for the plastic corrugated pipe to pass through. An elastic sealing ring (720) is provided on the inner peripheral wall of the through hole (710). The water injection assembly (800) is configured to match the third upper cooling tank (700) and is used to inject coolant into the third upper cooling tank (700); The first liquid storage tank (200), the second liquid storage tank (300), and the third liquid storage tank (500) are arranged sequentially. The third upper cooling tank (700) is provided with a water injection hole (750), wherein the water injection hole (750) is located near the bottom of the third upper cooling tank (700) in the height direction or at the bottom of the third upper cooling tank (700), and the water injection assembly (800) is connected to the water injection hole (750). The upper part of the outer wall of the third upper cooling tank (700) is provided with a drain outlet (730) in the height direction. The transport cooling device also includes a connecting pipe (740), one end of which is connected to the drain outlet (730) and the other end is introduced into the bottom of the third storage tank (500). The substrate (100) is provided with a cooling tank. A first partition (110) and a second partition (120) are respectively provided along the length of the cooling tank. The first partition (110) and the second partition (120) divide the cooling tank into a first liquid storage tank (200), a second liquid storage tank (300) and a third liquid storage tank (500). The first partition (110) and the second partition (120) are recessed into the outer wall of the cooling tank in the height direction. The height of the first partition (110) exceeds that of the second partition (120). The cooling method of the plastic corrugated pipe extrusion device is spray type. The plastic corrugated pipe extrusion device has a cooling working fluid recovery pipe, and the second liquid storage tank (300) is connected to the cooling working fluid recovery pipe.

2. The transport and cooling device for plastic corrugated pipes according to claim 1, characterized in that, The elastic sealing ring (720) includes a plurality of sub-sealing rings (721) stacked in the thickness direction.

3. The transport and cooling device for plastic corrugated pipes according to claim 2, characterized in that, The thickness of the sub-sealing liquid ring (721) is 2 mm, and the quantity is 5.

4. The transport and cooling device for plastic corrugated pipes according to claim 2, characterized in that, The outer wall of the plastic corrugated pipe (900) is provided with a corrugated structure (910) in a circular manner. The dimension of the corrugated structure (910) in the length direction of the plastic corrugated pipe (900) is A, and the interval between adjacent corrugated structures (910) in the length direction of the plastic corrugated pipe (900) is B. The elastic sealing ring (720) includes two sub-sealing rings (721) stacked in the thickness direction. The total thickness of the two sub-sealing rings (721) is less than or equal to A+B. The thickness of one of the two sub-sealing rings (721) is greater than or equal to A, and the thickness of the other is greater than or equal to 1 mm.

5. The transport and cooling device for plastic corrugated pipes according to claim 1, characterized in that, The through hole (710) is located near the bottom of the third upper cooling tank (700) in the height direction.

6. The transport and cooling device for plastic corrugated pipes according to claim 1, characterized in that, The water injection hole (750) is located at the bottom of the third upper cooling tank (700). A baffle plate (760) is also provided corresponding to the water injection hole (750). The baffle plate (760) is connected to the bottom of the third upper cooling tank (700) and has a gap with the water injection hole (750).

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