Air ring cooling device for polyethylene steel wire composite pipe and using method

Abstract

The invention discloses an air ring cooling device for a polyethylene steel wire composite pipe and a use method, and belongs to the technical field of pipe machining, the air ring cooling device comprises a water tank, a through cooling hole is formed in the water tank, and the cooling hole is used for placing the pipe for cooling; an air ring with a spiral section is arranged in the water tank; an air ring air outlet is formed in the inner wall of the air ring, and air is blown out through the inner wall of the cooling hole; the end, facing the inner wall of the box body, of the air ring is provided with an air ring air inlet, and the side of the water tank is provided with a water tank air inlet. According to the air ring cooling device for the polyethylene steel wire composite pipe, the water tank is additionally arranged to conduct water cooling on the air ring structure, the air outlet temperature is reduced, then the polyethylene steel wire composite pipe is cooled through the air ring, and the quality problem caused when a pipe adhesive layer and an outer layer are cooled in a water cooling soaking mode is avoided; and meanwhile, air ring energy consumption is reduced, the cooling effect is improved, the device is small in size, and cooling use of a production pipeline is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe processing, and particularly relates to an air ring cooling device for polyethylene steel wire composite pipes and a using method thereof. Background Art

[0002] The statements herein only provide background art related to the present invention and do not necessarily constitute prior art.

[0003] In the prior art, after a polyethylene pipe blank is plastified at high temperature and formed by a die, it comes out of the die outlet. In order to facilitate the forming of the pipe blank, it is necessary to cool down the temperature at the die outlet end.

[0004] Currently, for the production of polyethylene steel wire composite pipes, it is necessary to cool down the glue layer and the outer layer of the pipes. For the cooling of the above parts, an air ring is often used for cooling. However, the current air ring cooling has the problem of low cooling efficiency. The faster the pipe production speed, the worse the cooling effect, and it is also easy to cause abnormal pipe production.

[0005] Since the glue layer and the outer layer of the polyethylene steel wire composite pipes cannot be cooled by being placed in water, it will affect the pipe production quality. Currently, the cooling effect is improved by increasing the number of air rings and increasing the fan power. However, increasing the equipment and increasing the equipment power increase the energy consumption and the cost of pipe production cooling. In addition, the size of the cooling device itself should not be too long, which will lengthen the pipe production line and is not convenient for pulling and cooling the pipes during use. Summary of the Invention

[0006] Aiming at the problems existing in the prior art, the present invention provides an air ring cooling device for polyethylene steel wire composite pipes. By adding a water tank to water-cool the air ring structure, the outlet air temperature is reduced, and then the polyethylene steel wire composite pipes are blown and cooled by the air ring, avoiding quality problems caused by water-cooling and soaking the glue layer and the outer layer of the pipes. At the same time, the energy consumption of the air ring is reduced and the cooling effect is improved. The size of the device itself is small, which is convenient for the cooling use of the production pipeline.

[0007] The technical solution of the present invention is as follows:

[0008] In the first aspect of the present invention, there is provided an air ring cooling device for polyethylene steel wire composite pipes, including a water tank. The water tank is provided with a through cooling hole for placing the pipe to cool down the temperature; inside the water tank, there is an air ring with a spiral cross-section. The inner wall of the air ring is provided with an air ring air outlet which blows out through the inner wall of the cooling hole; one end of the air ring facing the inner wall of the water tank is provided with an air ring air inlet, and the side part of the water tank is provided with a water tank air inlet.

[0009] In some embodiments of the present invention, a liftable support structure is provided at one end of the water tank away from the cooling holes, and the liftable support structure can drive the water tank closer to or farther from the ground.

[0010] In some embodiments of the present invention, the liftable support structure adopts a hydraulic rod.

[0011] In some embodiments of the present invention, the end of the water tank away from the cooling holes has a planar structure.

[0012] In some embodiments of the present invention, the opening direction of the air inlet of the air ring is opposite to that of the air inlet of the water tank.

[0013] In some embodiments of the present invention, a water inlet is provided on the side of the water tank, and a water outlet is provided at the bottom of the water tank.

[0014] In some embodiments of the present invention, a plurality of air outlets are provided along the circumferential direction on the inner side of the air ring.

[0015] In some embodiments of the present invention, a baffle is vertically provided on the side of the water tank close to the air inlet, and the bottom of the baffle is at a certain distance from the bottom of the water tank.

[0016] In some embodiments of the present invention, the bottom of the water tank contains circulating coolant, and the liquid level of the coolant is set at a certain distance from the bottom of the baffle.

[0017] In the second aspect of the present invention, a method for using an air ring cooling device for polyethylene steel wire composite pipes is provided, including:

[0018] Put coolant into the water tank, and the liquid level of the coolant is flush with the bottom of the baffle;

[0019] Place the pipe into the cooling holes, ventilate the air inlet of the water tank, and the air changes its direction through the baffle of the water tank, flows through the bottom of the water tank, fully contacts with the circulating coolant for cooling, then enters the air ring, and is blown out through the air outlets of the air ring to cool the pipe placed in the cooling holes.

[0020] One or more technical solutions of the present invention have the following beneficial effects:

[0021] The air ring cooling device for polyethylene steel wire composite pipes provided by the present invention cools the air ring structure by adding a water tank, reduces the air outlet temperature, and then cools the polyethylene steel wire composite pipes through the air ring, avoiding quality problems caused by water cooling immersion when cooling the pipe glue layer and the outer layer, while reducing the energy consumption of the air ring and improving the cooling effect. The device itself has a small size and is convenient for cooling the production pipeline;

[0022] The device provided by the present invention cools the air flowing through the interior of the box by means of a coolant disposed inside the water tank. Meanwhile, the opening direction of the air ring air inlet is set to be opposite to that of the water tank air inlet, and a baffle is provided on one side of the water tank close to the air inlet, and the liquid level of the coolant is made flush with the bottom of the baffle. In this way, the flow path of the air inside the water tank can be increased, enabling the air to come into full contact with the coolant for cooling, improving the air cooling effect and further reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0024] Figure 1 is a front schematic view of a water-cooled air ring device for a polyethylene steel wire composite pipe provided in Embodiment 1 of the present invention;

[0025] Figure 2 is a side schematic view of a water-cooled air ring device for a polyethylene steel wire composite pipe provided in Embodiment 1 of the present invention.

[0026] The schematic views are only for illustration purposes;

[0027] wherein, 1, air ring; 2, water tank; 3, water outlet; 4, water tank air inlet; 5, water inlet; 6, baffle; 7, coolant; 8, liftable support structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0029] Embodiment 1

[0030] In a typical embodiment of the present invention, as Figure 1-2 shown, a cooling device for a polyethylene steel wire composite pipe air ring 1 is provided, including a water tank 2. The water tank 2 is provided with a through cooling hole for placing the pipe for temperature reduction. Inside the water tank 2, there is an air ring 1 with a spiral cross-section. The inner wall of the air ring 1 is provided with an air outlet of the air ring 1 blowing out through the inner wall of the cooling hole. One end of the air ring 1 facing the inner wall of the box is provided with an air inlet of the air ring 1, and the side of the water tank 2 is provided with a water tank air inlet 4.

[0031] In this embodiment, a pipe is placed in the cooling hole, and the diameter of the cooling hole and the blowing distance can be set according to the cooling requirements of the actual pipe. The air inlet 4 of the water tank is arranged on the right side of the box body, and the air ring 1 is arranged inside the water tank 2. The air inlet of the air ring 1 faces the left side of the box body, so that the air can circulate fully inside the box body before entering the air ring 1, increasing the air circulation path, and being blown out through the cooling hole from the air outlet of the air ring 1 to cool the pipe.

[0032] The water tank 2 accommodates the pipe through the cooling hole, and multiple air outlets are arranged inside the spiral air ring 1 to achieve circumferential uniform blowing. By utilizing the synergistic effect of water cooling and air cooling, the quality problems of the pipe caused by direct water immersion are avoided, while the power requirement of the fan is reduced and the cooling efficiency is improved. The design of the spiral air ring 1 enhances the air flow directionality to ensure uniform cooling of the pipe surface.

[0033] Furthermore, a liftable support structure 8 is provided at one end of the water tank 2 away from the cooling hole. The liftable support structure 8 can drive the water tank 2 to approach or move away from the ground. With such a setting, the height of the cooling device can be conveniently adjusted to adapt to different pipe production lines for pipe cooling. The introduction of the liftable support structure 8 enables the height of the water tank 2 to be adjustable to meet the height requirements of different production lines. The technical effect is to improve the versatility of the device, facilitate docking with upstream and downstream equipment, reduce the production line adjustment cost, and enhance the operation flexibility.

[0034] Furthermore, the liftable support structure 8 adopts a hydraulic rod. In this embodiment, two hydraulic rods are symmetrically arranged at the bottom of the water tank 2 to ensure the stability of the lifting process. Using a hydraulic rod as the liftable support structure 8 enables the lifting process to be stable and controllable, with high support stability, and the hydraulic drive has a fast response speed, which is suitable for the dynamic adjustment requirements in a continuous production environment.

[0035] Furthermore, one end of the water tank 2 away from the cooling hole is a planar structure. With such a setting, the end of the water tank 2 with the planar structure is connected to the liftable support structure 8, which can achieve stable support for the water tank 2 and maintain the stability of the lifting process. One end of the water tank 2 away from the cooling hole is a planar structure, which optimizes the contact stability between the support surface and the hydraulic rod, avoids uneven stress caused by an uneven structure, and simplifies the manufacturing process and reduces the processing cost.

[0036] Furthermore, the opening direction of the air inlet of the air ring 1 is opposite to that of the air inlet 4 of the water tank. In this embodiment, one end of the water tank 2 with the cooling hole is an arc-shaped structure, and the air ring 1 is arranged between the arc-shaped structure and the cooling hole. The arc-shaped structure on the upper part of the water tank 2 is adapted to the air ring 1, reducing the sharp corners of the box body to avoid knocking and hurting the staff during use, and at the same time enabling the air to enter the air ring 1 evenly and flow out from the air outlet of the air ring 1.

[0037] The air inlet of the air ring 1 is arranged opposite to the water tank air inlet 4, extending the flow path of the air flow in the box, forcing the air flow to fully contact the coolant 7 before entering the air ring 1, enhancing the heat exchange efficiency and further reducing the outlet air temperature.

[0038] Furthermore, a water inlet 5 is provided on the side of the water tank 2, and a water outlet 3 is provided at the bottom of the water tank 2. The coolant 7 is replaced through the provided water inlet 5 and water outlet 3, and the coolant 7 is circulated during the cooling process. In this embodiment, the water inlet hole is arranged below the water tank air inlet 4 on the right side of the water tank 2, and the water outlet 3 is arranged at the bottom of the water tank 2 for facilitating the discharge of the coolant 7.

[0039] The water inlet 5 is provided on the side of the water tank 2 and the water outlet 3 is provided at the bottom, realizing the cyclic update of the coolant 7, avoiding the increase in the temperature of the coolant 7 due to long-term use, maintaining stable cooling performance, and facilitating maintenance and liquid level management at the same time.

[0040] Furthermore, a plurality of air outlets are provided circumferentially inside the air ring 1 along the circumferential direction. With such an arrangement, uniform blowing and cooling of the pipe in the circumferential direction can be achieved. The circumferential distribution of a plurality of air outlets inside the air ring 1 can realize 360° uniform cooling of the pipe, eliminating local overheating or cooling dead angles, and improving the consistency of the pipe forming quality.

[0041] Furthermore, a baffle 6 is vertically provided on one side of the water tank 2 close to the air inlet, and the baffle 6 is at a certain distance from the bottom of the water tank 2. The setting of the baffle 6 and the control of the liquid level of the coolant 7 can forcibly change the air flow direction, making it flow through the surface of the coolant 7 and fully exchange heat; the gap between the liquid level and the baffle 6 is controlled at a certain distance to prevent the liquid from being carried out by the air flow, while maximizing the air-liquid contact area and improving the cooling efficiency.

[0042] In this embodiment, the baffle 6 is welded inside the water tank 2 at about 5 - 10 cm close to the air inlet, and the baffle 6 leaves a cooling water area from the bottom of the water tank 2, and the size of the cooling water area is designed according to the size of the air ring 1.

[0043] Furthermore, the bottom of the water tank 2 is filled with a recyclable and flowing coolant 7, and the liquid level of the coolant 7 is set at a set distance from the bottom of the baffle 6. In this embodiment, the bottom of the water tank 2 is filled with a circulating coolant 7, and there is a gap of less than 1 cm between the liquid level of the coolant 7 and the bottom of the baffle 6 to prevent the cooling water from being carried out by the cooling air.

[0044] In this embodiment, the baffle 6 can change the flow direction of the air at the air inlet, making it flow into the water tank 2 from the right side and then flow downward through the coolant 7. At the same time, the liquid level of the coolant 7 is flush with the bottom of the baffle 6, which can ensure that the air and the coolant 7 are fully in contact while not affecting the air inlet of the air ring 1 on the left side of the wind direction. With such an arrangement, the air in the water tank 2 can be fully cooled.

[0045] In a second aspect of the present invention, a method for using a cooling device for a polyethylene steel wire composite pipe wind ring 1 is provided, including:

[0046] Put a coolant 7 into the water tank 2, and the liquid level of the coolant 7 is flush with the bottom of the baffle 6;

[0047] Place the pipe in the cooling hole, ventilate the air inlet of the water tank 4, and the air changes its direction through the baffle 6 of the water tank 2 and flows through the bottom of the water tank 2 to be in full contact with the coolant 7 for cooling and then enters the wind ring 1, and is blown out through the air outlet of the wind ring 1 to cool the pipe placed in the cooling hole.

[0048] For the cooling device of the polyethylene steel wire composite pipe wind ring 1 provided by the present invention, the structure of the wind ring 1 is water-cooled by adding a water tank 2 to reduce the air outlet temperature, and then the polyethylene steel wire composite pipe is cooled by the wind ring 1, avoiding quality problems caused by water-cooling immersion when cooling the pipe glue layer and the outer layer. At the same time, the energy consumption of the wind ring 1 is reduced and the cooling effect is improved. The device itself is small in size and convenient for the cooling use of production pipelines;

[0049] In addition, by arranging the coolant 7 inside the water tank 2 to cool the air flowing through the inside of the box body, and at the same time arranging the opening direction of the air inlet of the wind ring 1 to be opposite to the air inlet 4 of the water tank and arranging a baffle 6 on one side of the water tank 2 close to the air inlet, and making the liquid level of the coolant 7 flush with the bottom of the baffle 6, in this way, the flow path of the air inside the water tank 2 can be increased, so that the air is in full contact with the coolant 7 for cooling, improving the air-cooling effect and further reducing the energy consumption.

[0050] The present invention can achieve:

[0051] First, efficient cooling and energy consumption optimization. Through the collaborative mechanism of water-cooling pre-cooling and secondary cooling of the wind ring 1, the air outlet temperature is significantly reduced, the dependence on high-power fans is reduced, the comprehensive energy consumption is reduced, and at the same time, the cooling efficiency is improved to meet the requirements of high-speed production lines.

[0052] Second, compact structure and flexibility. The modular design integrating the water tank 2 and the spiral wind ring 1 shortens the device length and reduces the space occupied by the production line; the liftable support structure 8 supports multi-scenario adaptation and improves the flexibility of the production line layout.

[0053] Third, improvement of quality stability. The uniform circumferential air outlet and the baffle 6 diversion design eliminate the problem of uneven cooling, avoid deformation or delamination of the pipe glue layer caused by temperature difference, and improve the product qualification rate.

[0054] Fourth, convenient maintenance and cost control. The coolant 7 circulation system and the standardized operation process simplify the maintenance steps. The hydraulic drive structure reduces the mechanical failure rate, reduces the comprehensive maintenance cost, and prolongs the service life of the equipment.

[0055] Fifth, environmental protection and safety. Water immersion cooling is avoided to reduce water resource consumption and the burden of wastewater treatment; the design of the edge of the arc-shaped water tank 2 and the baffle 6 reduces the risk of operators being bumped, meeting industrial safety standards.

[0056] Through the combination of innovative structural design and operating methods, the device provided by the present invention solves the core problems in the production of polyethylene steel wire composite pipes, such as low cooling efficiency, high energy consumption, and large space occupation. It combines high efficiency and safety and is suitable for large-scale industrial production scenarios.

[0057] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An air ring cooling device for polyethylene steel wire composite pipe, characterized in that: It includes a water tank, which is provided with a penetrating cooling hole for placing pipes for cooling; an air ring with a spiral cross-section is provided inside the water tank, and an air ring outlet is provided on the inner wall of the air ring to blow air out through the inner wall of the cooling hole; an air ring inlet is provided at one end of the air ring facing the inner wall of the box body, and a water tank inlet is provided on the side of the water tank.

2. The air ring cooling device for polyethylene steel wire composite pipe according to claim 1, characterized in that: A liftable support structure is provided at one end of the water tank away from the cooling hole, and the liftable support structure can drive the water tank closer to or away from the ground.

3. The air ring cooling device for polyethylene steel wire composite pipe according to claim 2, characterized in that: The liftable support structure adopts a hydraulic rod.

4. The air ring cooling device for polyethylene steel wire composite pipe according to claim 1, characterized in that: One end of the water tank away from the cooling hole is a planar structure.

5. The air ring cooling device for polyethylene steel wire composite pipe according to claim 1, characterized in that: The opening direction of the air inlet of the air ring is opposite to the air inlet of the water tank.

6. The air ring cooling device for polyethylene steel wire composite pipe according to claim 1, characterized in that: The side of the water tank is provided with a water inlet, and the bottom of the water tank is provided with a water outlet.

7. The air ring cooling device for polyethylene steel wire composite pipe according to claim 1, characterized in that: The air outlets are arranged in a plurality along the circumferential direction on the inner side of the air ring.

8. The air ring cooling device for polyethylene steel wire composite pipe according to claim 1, characterized in that: A baffle is vertically arranged on one side of the water tank close to the air inlet, and the bottom of the baffle is at a certain distance from the bottom of the water tank.

9. The air ring cooling device for polyethylene steel wire composite pipe according to claim 8, characterized in that: The bottom of the water tank is filled with circulating cooling liquid, and the liquid surface of the cooling liquid is arranged at a set distance from the bottom of the baffle.

10. The method for using the air ring cooling device for polyethylene steel wire composite pipe according to any one of claims 1 to 9, characterized in that: include: Pour coolant into the water tank, and make sure the coolant level is flush with the bottom of the baffle; Place the pipe in the cooling hole and ventilate the water tank air inlet. The wind changes direction through the water tank baffle and flows through the bottom of the water tank to fully contact with the circulating coolant for cooling. After that, it enters the air ring and is blown out through the air ring outlet to cool the pipe placed in the cooling hole.

Images