Water cooling device for spiral steel pipe production

Abstract

This utility model discloses a water-cooling device for spiral steel pipe production, belonging to the field of spiral steel pipe processing technology. It includes a water-cooling chamber with two symmetrically arranged pipe holes on one side of the chamber. Multiple roller seats are equidistantly fixed to the bottom inner wall of the water-cooling chamber. It also includes a cooling water pipe assembly, including a water pipe arranged horizontally above the interior of the water-cooling chamber, with multiple inlet pipes at the top. This utility model can guide the cooling water flow and cause it to act on the surface of the spiral steel pipe in a continuous back-and-forth oscillating manner, ensuring full contact between the outer surface of the spiral steel pipe and the cooling water, improving the overall cooling uniformity and thus greatly enhancing the cooling effect. Furthermore, it can simultaneously drive the fan blades to oscillate back and forth, achieving a wind-cooling effect, thereby greatly improving cooling efficiency. The entire device is simple to operate and can be adjusted for the inner diameter of the spiral steel pipe.

Description

Technical Field

[0001] This utility model belongs to the field of spiral steel pipe processing technology, and in particular relates to a water cooling device for spiral steel pipe production. Background Technology

[0002] Spiral welded steel pipe is a type of steel pipe with seams on its surface, formed by bending steel coils into a circle and then welding them. It is mainly used in water supply projects, petrochemical industries, chemical industries, power industries, agricultural irrigation, and urban construction. The production process of spiral welded steel pipe mainly includes hot-rolled coil loading, spiral forming, internal and external fully automatic submerged arc welding, plasma cutting, pipe end finishing, internal and external shot blasting, internal and external fusion-bonded epoxy powder coating, adhesive winding, polyethylene layer extrusion winding, water-cooling and shaping, pipe end grinding, and final finished product inspection. After the polyethylene layer extrusion winding process, the spiral welded steel pipe needs to be transported to a water-cooling chamber, where cooling water tanks and water-cooling nozzles are installed to cool and shape the formed polyethylene layer.

[0003] Traditional water-cooling processes mostly involve spraying water directly onto the spiral steel pipe through outlet pipes or nozzles, while the spiral steel pipe rotates on roller seats, achieving a uniform circumferential cooling effect. However, traditional outlet pipes or nozzles are spaced out, causing the water to concentrate on only localized areas of the spiral steel pipe. The spaces between these outlets lack direct contact with cooling water and rely solely on heat conduction for gradual cooling, resulting in poor localized cooling, uneven overall surface cooling, and low cooling efficiency. Therefore, we propose a water-cooling device for spiral steel pipe production to address these problems. Summary of the Invention

[0004] In view of this, in order to solve the problem that the cooling method of traditional water-cooled rooms results in poor cooling effect in local parts of spiral steel pipes, uneven cooling of the overall surface, and low cooling efficiency, this utility model provides a water-cooling device for spiral steel pipe production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water-cooling device for spiral steel pipe production, comprising a water-cooling chamber, two symmetrically arranged pipe delivery holes on opposite sides of the water-cooling chamber, and multiple roller seats fixedly installed at equal intervals on the bottom inner wall of the water-cooling chamber, and further comprising: A water supply pipe is arranged horizontally above the interior of the water-cooled room. The top of the water supply pipe is provided with multiple water inlet pipes, which all extend upward through the top of the water-cooled room and connect to the external water supply pipe. The bottom of the water supply pipe is provided with multiple water outlet pipes. Multiple water outlet hoppers are provided, each located directly below the bottom end of a plurality of water outlet pipes, for guiding and conveying the cooling water flowing out of the water outlet pipes; An adjustment assembly is installed inside and outside the water-cooled room for rotating installation and lifting adjustment of the multiple water outlet buckets. A drive assembly, located inside or outside the water-cooling chamber, is used to rotate the multiple water outlet buckets back and forth, thereby increasing the water-cooling area of ​​the spiral steel pipe.

[0006] Furthermore, the installation adjustment assembly includes an L-shaped plate that slides against the inner walls of both sides of the water-cooled chamber, and one side of each of the multiple water outlets is rotatably connected to one side of the L-shaped plate via a corresponding rotating shaft.

[0007] Furthermore, multiple guide rods are fixedly connected to the top of the L-shaped plate, and the top ends of the multiple guide rods slide upward through the top of the water-cooled chamber. Two lifting cylinders are symmetrically fixedly connected to the inner wall of the top of the water-cooled chamber, and the output ends of the two lifting cylinders are fixedly connected to the top of the L-shaped plate.

[0008] Furthermore, the drive assembly includes a movable plate that runs through the entire water-cooled chamber, with multiple racks fixedly connected to the top of the movable plate, and gears that mesh with the racks fixedly fitted onto the outer walls of the multiple rotating shafts.

[0009] Furthermore, the drive assembly also includes at least one power assembly, which includes a fixed plate fixedly connected to the outer wall of one side of the water-cooled room. A drive motor is fixedly connected to the top of the fixed plate. The output shaft of the drive motor rotates downward through the bottom of the fixed plate and is fixedly connected to a disc. An actuating rod is fixedly connected to the bottom of the disc at an eccentric position. A strip hole is provided on the top of the movable plate to cooperate with the actuating rod.

[0010] Furthermore, the cross-section of the water outlet hopper is Y-shaped.

[0011] Furthermore, a strip plate is fixedly provided on one side of the bottom of the L-shaped plate, and multiple sets of support blocks are fixedly connected to one side of the strip plate. Each set of support blocks consists of two symmetrically arranged blocks. The movable plate slides through the two support blocks in each set. Adjustment holes for the movable plate to pass through are provided on the opposite sides of the water-cooled room.

[0012] Furthermore, each of the multiple water outlet buckets has a connecting rod fixedly connected to the outer wall on the side away from the rotating shaft, and a fan blade is fixedly connected to the other end of the connecting rod for fan cooling of the outer surface of the spiral steel pipe.

[0013] Furthermore, the fan blades are made of soft plastic.

[0014] The embodiments of this utility model have the following beneficial effects: This invention utilizes a rotating water outlet bucket at the lower end of the outlet pipe to guide the cooling water flow. The cooling water acts on the surface of the spiral steel pipe in a continuous oscillating motion. Combined with the rotation of the spiral steel pipe itself, this ensures that the outer surface of the pipe is fully in contact with the cooling water, improving the uniformity of cooling and significantly enhancing the cooling effect. The rotation of the water outlet bucket also drives the fan blades to oscillate, achieving a wind-cooling effect and further improving cooling efficiency. The entire device is simple to operate and can be adjusted to suit the inner diameter of the spiral steel pipe, effectively improving its overall practicality.

[0015] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of a water cooling device for spiral steel pipe production according to the present invention; Figure 2 This is a cross-sectional view of the overall structure of a water cooling device for spiral steel pipe production according to this utility model; Figure 3 A schematic diagram of the connection structure of the water outlet bucket, the installation adjustment component, and the drive component; Figure 4 for Figure 3 A schematic diagram of a partial structure; Figure 5 for Figure 4 A schematic diagram of the overall structure from another perspective; Figure 6 This is a schematic diagram of the overall structure of the driving component.

[0017] In the diagram: 1. Water-cooled room; 2. Water supply pipe hole; 3. Roller seat; 4. Water supply pipe; 5. Water inlet pipe; 6. Water outlet pipe; 7. Movable plate; 8. Water outlet hopper; 9. Fixed plate; 10. Adjustment hole; 11. L-shaped plate; 12. Rotating shaft; 13. Guide rod; 14. Gear; 15. Lifting cylinder; 16. Strip plate; 17. Drive motor; 18. Strip hole; 19. Rack; 20. Disc; 21. Actuating rod; 22. Connecting rod; 23. Fan blade; 24. Support block. Detailed Implementation

[0018] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0019] Example 1: Please refer to Figure 1 , Figure 2 This embodiment provides a water-cooling device for spiral steel pipe production, including a water-cooling chamber 1. Two symmetrically arranged pipe holes 2 are opened on opposite sides of the water-cooling chamber 1 for conveying the spiral steel pipe in and out. Multiple roller seats 3 are fixedly installed at equal intervals on the bottom inner wall of the water-cooling chamber 1 to support the rotation of the spiral steel pipe. After undergoing the polyethylene winding process, the spiral steel pipe is directly conveyed into the water-cooling chamber 1 through one of the pipe holes 2, and simultaneously supported by the roller seats 3.

[0020] The water-cooled chamber 1 is equipped with a cooling water pipeline assembly for water-cooling the spiral steel pipe. Specifically, it includes a horizontally positioned water supply pipe 4 located at the top of the chamber, with both ends of the pipe closed. Multiple inlet pipes 5 are fixedly connected at equal intervals at the top of the water supply pipe 4. These inlet pipes 5 extend upwards through the top of the chamber 1 and connect to an external water supply pipeline, which in turn connects to a pump to deliver cooling water. Multiple outlet pipes 6 are fixedly connected at equal intervals at the bottom of the water supply pipe 4. These outlet pipes 6 are vertically downwards and equipped with valves, allowing for individual control of the water flow from each outlet pipe 6. This enables the selection of outlet points based on the overall length of the spiral steel pipe. After the spiral steel pipe is fed into the water-cooling chamber 1, cooling water is uniformly delivered to the water supply pipe 4 through multiple inlet pipes 5, and then flows out from multiple outlet pipes 6 through branching, directly flowing onto the outer surface of the spiral steel pipe below, thereby cooling the spiral steel pipe. During the water cooling process, the spiral steel pipe can rotate on the roller seat 3, thereby achieving uniform circumferential cooling.

[0021] This invention can be used in the field of spiral steel pipe processing, and can also be applied to other fields.

[0022] Example 2: This example is a further improvement on the previous example: as follows Figures 1-6As shown, multiple guide rods 13 slide through the top of the water-cooled chamber 1. The bottom ends of the guide rods 13 extend into the water-cooled chamber 1 and are fixedly connected to the same L-shaped plate 11. The two ends of the L-shaped plate 11 slide against the inner walls of both sides of the water-cooled chamber 1. Two lifting cylinders 15 are symmetrically fixedly connected to the inner wall of the top of the water-cooled chamber 1. The output ends of the two lifting cylinders 15 are fixedly connected to the top of the L-shaped plate 11. By activating the lifting cylinders 15, the L-shaped plate 11 can be moved up and down, thereby adjusting its height.

[0023] Multiple rotating shafts 12 are equidistantly connected to the outer side of the L-shaped plate 11. Each rotating shaft 12 has a fixed water outlet 8 at its other end. The number of water outlet 8 matches the number of water outlet pipes 6, and each water outlet 8 is located directly below the bottom of each water outlet pipe 6, allowing water flowing from the water outlet pipes 6 to enter the water outlet 8. All water outlet 8 have identical structures, with a Y-shaped cross-section, a large opening at the top, and a small opening at the bottom. This design ensures that after rotating a certain angle, the cooling water in the water outlet pipes 6 can flow normally into the water outlet 8 and be guided and transported to the surface of the spiral steel pipe through the small opening at the bottom. The back-and-forth rotation of the water outlet 8 allows the cooling water to circulate and oscillate on the spiral steel pipe, increasing the cooling area and improving cooling uniformity. By setting multiple rotating water outlet 8s in conjunction with the rotation of the spiral steel pipe itself, the entire surface of the spiral steel pipe can directly contact the cooling water, significantly improving the cooling effect.

[0024] A movable plate 7 is movably installed on the opposite sides of the water-cooled chamber 1. Multiple racks 19 are equidistantly fixed to the top of the movable plate 7 on one side inside the water-cooled chamber 1. Gears 14 meshing with the racks 19 are fixedly fitted onto the outer walls of multiple rotating shafts 12. Fixed plates 9 are fixedly connected to the outer walls of the opposite sides of the water-cooled chamber 1. A drive motor 17 is fixedly installed on the top of the fixed plate 9. The output shaft of the drive motor 17 rotates downwards, passing through the bottom of the fixed plate 9 and is fixedly connected to a disc 20. A lever 21 is fixedly connected to the eccentric position at the bottom of the disc 20. Slotted holes 18 are opened on both sides of the top of the movable plate 7 outside the water-cooled chamber 1 to engage with the corresponding levers 21. During the cooling process of the spiral steel pipe, the drive motor 17 is started, which drives the actuating rod 21 to rotate eccentrically via the disc 20. At this time, through the engagement with the slotted hole 18, the movable plate 7 can be moved. After the disc 20 rotates one revolution, the movable plate 7 moves back and forth one round. Through the meshing of the rack 19 and the gear 14, the back-and-forth movement of the rack 19 can drive the gear 14 to rotate the shaft 12 back and forth, which in turn can drive the water outlet hopper 8 to rotate continuously, so that the cooling water can continuously act on the spiral steel pipe in a back-and-forth oscillating manner.

[0025] In one aspect of this embodiment, a strip plate 16 is fixedly provided on one side of the bottom of the L-shaped plate 11. The strip plate 16 can be integrally formed or welded. Multiple sets of support blocks 24 are equidistantly connected to the side of the strip plate 16 near the water outlet 8. Each set of support blocks 24 is located between two adjacent water outlets 8. Each set of support blocks 24 consists of two horizontally symmetrical blocks, and the movable plate 7 slides through the two support blocks 24 in each set, providing stable support and guiding movement for the movable plate 7. Simultaneously, by adjusting the height of the L-shaped plate 11 using the lifting cylinder 15, the height of the water outlet 8 can be adjusted to accommodate spiral steel pipes of different inner diameters, improving operational flexibility. The vertical movement of the water outlet 8 drives the gear 14 to move up and down synchronously. At this time, the L-shaped plate 11, through the strip plate 16 and support blocks 24, drives the movable plate 7 to move up and down synchronously, ensuring that the rack 19 is always engaged with the gear 14, guaranteeing the normal operation of the entire device. Adjustment holes 10 are provided on the opposite sides of the water-cooled chamber 1 for the movable plate 7 to pass through. The movable plate 7 can not only move horizontally within the adjustment holes 10, but also move up and down for adjustment.

[0026] Example 3: This example is a further improvement on the previous example: as follows Figures 1-5 As shown, connecting rods 22 are fixedly connected to the outer wall of each of the multiple water outlet hoppers 8 on the side away from the rotating shaft 12. Fan blades 23 are fixedly connected to the other end of the connecting rods 22. The fan blades 23 are set at a fan angle of 40-60 degrees with respect to the vertical direction of the water outlet hoppers 8. The rotation direction of the spiral steel pipe is... Figure 2 As shown, the spiral steel pipe rotates clockwise. When cooling water acts on the outer surface of the spiral steel pipe, it first cools the pipe through heat exchange. The rotation of the spiral steel pipe causes the surface with water to rotate and move towards the fan blades 23. The back-and-forth rotation of the water outlet 8, via the connecting rod 22, drives the fan blades 23 to swing back and forth synchronously, thus achieving a fan effect. After being cooled by the cooling water, the spiral steel pipe passes through the fan area. The fan accelerates the evaporation of water on its surface, further improving the cooling effect. Additionally, the fan blades 23 increase airflow within the water-cooling chamber 1, also accelerating the cooling of parts of the spiral steel pipe not located in the water-cooling or fan areas, thereby significantly improving the overall cooling efficiency.

[0027] In one aspect of this embodiment, the fan blade 23 can be made of soft plastic or soft silicone, with a thickness of 10-20mm, which can improve the fan effect and ensure that airflow is generated during the back-and-forth oscillation to achieve air cooling. In addition, the connecting rod 22 and the water outlet 8 are detachably connected by screws, which facilitates the replacement of the fan blade 23.

[0028] However, as is well known to those skilled in the art, the working principle and wiring method of the lifting cylinder 15 and the drive motor 17 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A water-cooling device for spiral steel pipe production, comprising a water-cooling chamber (1), wherein two pipe delivery holes (2) are symmetrically opened on opposite sides of the water-cooling chamber (1), and multiple roller seats (3) are fixedly installed at equal intervals on the bottom inner wall of the water-cooling chamber (1), characterized in that, Also includes: A water supply pipe (4) is arranged horizontally above the interior of the water-cooled room (1). The top of the water supply pipe (4) is provided with multiple water inlet pipes (5). The multiple water inlet pipes (5) all penetrate upward through the top of the water-cooled room (1) and are connected to the external water supply pipe. The bottom of the water supply pipe (4) is provided with multiple water outlet pipes (6). Multiple water outlet hoppers (8) are provided and are respectively located directly below the bottom end of multiple water outlet pipes (6) for guiding and conveying the cooling water flowing out of the water outlet pipes (6); An adjustment assembly is installed inside and outside the water-cooled room (1) for the rotational installation and lifting adjustment of the multiple water outlet buckets (8); The drive assembly is located inside and outside the water-cooled chamber (1) and is used to rotate the multiple water outlet buckets (8) back and forth to increase the water-cooling area of ​​the spiral steel pipe.

2. The water-cooling device for spiral steel pipe production as described in claim 1, characterized in that, The installation adjustment assembly includes an L-shaped plate (11) that fits and slides against the inner walls of both sides of the water-cooled room (1), and one side of each of the multiple water outlets (8) is rotatably connected to one side of the L-shaped plate (11) via a corresponding rotating shaft (12). The top of the L-shaped plate (11) is fixedly connected to multiple guide rods (13), the top ends of the multiple guide rods (13) slide upward through the top of the water-cooled room (1), and two lifting cylinders (15) are symmetrically fixedly connected to the inner wall of the top of the water-cooled room (1), and the output ends of the two lifting cylinders (15) are fixedly connected to the top of the L-shaped plate (11).

3. The water-cooling device for spiral steel pipe production as described in claim 2, characterized in that, The drive assembly includes a movable plate (7) that runs through the entire water-cooled room (1). Multiple racks (19) are fixedly connected to the top of the movable plate (7). The outer walls of the multiple rotating shafts (12) are all fixedly fitted with gears (14) that mesh with the racks (19).

4. A water-cooling device for spiral steel pipe production as described in claim 3, characterized in that, The drive assembly also includes at least one power assembly, which includes a fixed plate (9) fixedly connected to the outer wall of one side of the water-cooled room (1). A drive motor (17) is fixedly connected to the top of the fixed plate (9). The output shaft of the drive motor (17) rotates downward through the bottom of the fixed plate (9) and is fixedly connected to a disc (20). A lever (21) is fixedly connected to the bottom of the disc (20) at an eccentric position. A strip hole (18) is opened on the top of the movable plate (7) to cooperate with the lever (21).

5. A water-cooling device for spiral steel pipe production as described in claim 1 or 4, characterized in that, The cross-section of the water outlet hopper (8) is Y-shaped.

6. A water-cooling device for spiral steel pipe production as described in claim 4, characterized in that, A strip plate (16) is fixedly provided on one side of the bottom of the L-shaped plate (11). Multiple sets of support blocks (24) are fixedly connected to one side of the strip plate (16), and each set of support blocks (24) consists of two symmetrically arranged blocks. The movable plate (7) slides through the two support blocks (24) of each set. Adjustment holes (10) for the movable plate (7) to pass through are provided on the opposite sides of the water-cooled room (1).

7. A water-cooling device for spiral steel pipe production as described in claim 5, characterized in that, Each of the multiple water outlets (8) has a connecting rod (22) fixedly connected to the outer wall of the side away from the rotating shaft (12), and a fan blade (23) is fixedly connected to the other end of the connecting rod (22) for fan cooling of the outer surface of the spiral steel pipe.

8. A water-cooling device for spiral steel pipe production as described in claim 7, characterized in that, The fan blades (23) are made of soft plastic.

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