A cooling device for large-diameter thick-wall seamless steel pipe production

Abstract

This utility model discloses a cooling device for the production of large-diameter thick-walled seamless steel pipes. This utility model relates to the field of seamless steel pipe production technology. The utility model includes: a housing, with a fixing device rotatably connected to the outer wall of the housing. The fixing device fixes the workpiece by rotation. By setting up the fixing device, the rotational connection between the rotating frame and the sliding frame, combined with the circumferentially arrayed sliding frame structure, allows for flexible adjustment of the clamping range according to the outer diameter of the large-diameter thick-walled steel pipe. The sliding and rotating cooperation between the passive rod and the rotating wheel allows for adaptive contact with the outer wall of the steel pipe through contact pressure when it is placed. Combined with the thread adjustment of the unidirectional screw, this ensures stable fixing of the steel pipe during cooling and also drives the steel pipe to rotate synchronously through the overall rotation of the rotating frame, eliminating the problem of blind spots in the cooling of support points in traditional fixing methods, thus laying the foundation for uniform cooling.

Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipe production technology, specifically a cooling device for the production of large-diameter thick-walled seamless steel pipes. Background Technology

[0002] Large-diameter, thick-walled seamless steel pipes are widely used in oil and gas transportation, high-pressure boilers, engineering machinery and other fields. Their service environment has extremely high requirements for performance stability, so precise cooling control is needed to achieve microstructure optimization.

[0003] Traditional cooling devices often use rigid clamping structures, which are difficult to adapt to steel pipes of different diameters. When the outer diameter of the steel pipe changes, the clamping components need to be replaced manually, which is time-consuming and has low precision. At the same time, large-diameter steel pipes have a large self-weight, and are prone to displacement due to medium impact or conveying vibration during the cooling process, resulting in insufficient coverage of local cooling medium, forming hard spots or soft areas, which affects the uniformity of performance. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a cooling device for the production of large-diameter, thick-walled seamless steel pipes, which solves the problems of unstable fixation, uneven cooling, and poor versatility of traditional devices.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for the production of large-diameter thick-walled seamless steel pipes, comprising: a box body, a fixing device rotatably connected to the outer wall of the box body, the fixing device fixing the workpiece by rotation, a water cooling device fixedly connected to the inner wall of the box body, the fixing device including a rotating frame, a sliding frame rotatably connected to the inner wall of the rotating frame, the outer wall of the sliding frame being arranged in a circumferential array along the central axis of the rotating frame, the symmetrical rotating connection design between the rotating frame and the box body adapts to the loading and unloading requirements of large-diameter steel pipes and reduces the alignment difficulty during hoisting.

[0008] Preferably, the outer wall of the rotating frame is symmetrically rotatably connected to the side wall of the box.

[0009] Preferably, a passive rod is slidably connected to the inner wall of the sliding frame, a wheel is rotatably connected to the inner wall of the passive rod, a connecting block is fixedly connected to the outer wall of the rotating frame, and a one-way screw is threadedly connected to the inner wall of the connecting block. The sliding fit between the sliding frame and the passive rod allows the device to be compatible with steel pipes of different diameters, eliminating the need for frequent replacement of fixed components and improving the versatility of the equipment.

[0010] Preferably, the end of the passive rod away from the rotating wheel is fixedly connected to the outer wall of the housing, and the one-way screw is rotatably connected to the inner wall of the housing through the support block. The sliding and rotating cooperation between the passive rod and the rotating wheel can adaptively fit the outer wall of the steel pipe through contact pressure when the steel pipe is placed. With the thread adjustment of the one-way screw, the steel pipe can be stably fixed during the cooling process.

[0011] Preferably, the water cooling device includes a central frame, with nozzles fixedly connected to the outer wall of the central frame. The nozzles are arranged in a circular array along the central axis of the central frame. A water inlet pipe is fixedly connected to the outer wall of the central frame, and a water outlet pipe is fixedly connected to the inner wall of the housing. The water cooling device adopts a combination design of a central frame and a circular array of nozzles. Multiple sets of nozzles fully cover the circumference of the steel pipe, and the central frame is arranged in a linear array along the inner wall of the housing. This allows for segmented cooling of the entire length of the steel pipe, effectively solving the problem of uneven cooling of the outer wall of large-diameter steel pipes.

[0012] Preferably, the outer wall of the central frame is fixedly connected to the inner wall of the box, the outer wall of the central frame is arranged in a linear array along the inner wall of the box, and the outer wall of the water inlet pipe is fixedly connected to the inner wall of the box.

[0013] Beneficial effects

[0014] This utility model provides a cooling device for the production of large-diameter, thick-walled seamless steel pipes. It has the following beneficial effects:

[0015] This utility model, through the setting of a fixing device, in which the rotating frame and the sliding frame are rotated together and the sliding frame structure is arranged in a circumferential array, can flexibly adjust the clamping range according to the outer diameter of the large-diameter thick-walled steel pipe. The sliding and rotating cooperation between the passive rod and the rotating wheel can adaptively fit the outer wall of the steel pipe through contact pressure when the steel pipe is placed. With the thread adjustment of the one-way screw, it can not only ensure the stable fixing of the steel pipe during the cooling process, but also drive the steel pipe to rotate synchronously through the overall rotation of the rotating frame, eliminating the problem of the cooling blind zone of the support point in the traditional fixing method, and laying the foundation for uniform cooling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the passive rod of this utility model.

[0019] In the diagram: 1. Box body; 2. Fixing device; 20. Rotating frame; 21. Sliding frame; 22. Passive rod; 23. Rotary wheel; 24. Connecting block; 25. One-way screw; 3. Water cooling device; 30. Central frame; 31. Nozzle; 32. Water inlet pipe; 33. Water outlet pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] Please see Figure 1-3 This utility model provides a technical solution: a cooling device for the production of large-diameter thick-walled seamless steel pipes, comprising:

[0023] Box 1, with a fixing device 2 rotatably connected to the outer wall of box 1. The fixing device 2 fixes the workpiece by rotating. A water cooling device 3 is fixedly connected to the inner wall of box 1. The cooling device uses the fixing device 2 to adaptively fix and rotate the large-diameter thick-walled seamless steel pipe, and with the multi-dimensional media spraying of the water cooling device 3, it achieves uniform and efficient cooling of the steel pipe in the closed box 1 environment.

[0024] The fixing device 2 includes a rotating frame 20, and a sliding frame 21 is rotatably connected to the inner wall of the rotating frame 20. The outer wall of the sliding frame 21 is arranged in a circular array along the central axis of the rotating frame 20. The outer wall of the rotating frame 20 is symmetrically rotatably connected to the side wall of the box 1. When a large-diameter thick-walled seamless steel pipe enters the device, the sliding frame 21 arranged in a circular array on the inner wall of the rotating frame 20 is positioned by the cooperation of the passive rod 22 and the rotating wheel 23. The passive rod 22 slides in the sliding frame 21, so that the rotating wheel 23 adapts to the surface of steel pipes of different diameters by pressure when it contacts the outer wall of the steel pipe.

[0025] A passive rod 22 is slidably connected to the inner wall of the sliding frame 21, and a rotating wheel 23 is rotatably connected to the inner wall of the passive rod 22. A connecting block 24 is fixedly connected to the outer wall of the rotating frame 20, and a one-way screw 25 is threadedly connected to the inner wall of the connecting block 24. The end of the passive rod 22 away from the rotating wheel 23 is fixedly connected to the outer wall of the housing 1. The one-way screw 25 is rotatably connected to the inner wall of the housing 1 through a support block. At the same time, the one-way screw 25 drives the rotating frame 20 to make fine adjustments through the connecting block 24. The self-locking property of the threaded transmission ensures that the steel pipe is stably clamped, avoiding displacement due to medium impact or self-weight during the cooling process. The rotating frame 20 is symmetrically rotatably connected to the side wall of the housing 1. Under the continuous drive of the one-way screw 25, the rotating frame 20 drives the sliding frame 21 and the clamped steel pipe to rotate synchronously. This rotational action allows the steel pipe to periodically contact the spray area of ​​the water cooling device 3 in the circumferential direction, eliminating the problem of uneven cooling caused by the support point obstruction in the traditional fixing method, and providing a mechanical motion basis for uniform cooling of the outer wall.

[0026] The water cooling device 3 includes a central frame 30, with nozzles 31 fixedly connected to the outer wall of the central frame 30. The nozzles 31 are arranged in a circular array along the central axis of the central frame 30. A water inlet pipe 32 is fixedly connected to the outer wall of the central frame 30, and a water outlet pipe 33 is fixedly connected to the inner wall of the housing 1. The outer wall of the central frame 30 is fixedly connected to the inner wall of the housing 1, and the outer wall of the central frame 30 is arranged in a linear array along the inner wall of the housing 1. The outer wall of the water inlet pipe 32 is fixedly connected to the inner wall of the housing 1. The water inlet pipe 32 delivers the cooling medium to the central frame 30. The central frame 30 sprays the medium evenly onto the outer wall of the steel pipe through the circumferentially arranged nozzles 31. At the same time, the central frame 30 is arranged in a linear array along the inner wall of the housing 1, so that the spray area covers the entire length of the steel pipe, achieving full circumferential coverage and axial segmented dual cooling coverage. After use, the water can be discharged from the water outlet pipe 33 at the bottom of the housing 1.

[0027] In use, the cooling device uses the fixing device 2 to adaptively fix and rotate the large-diameter thick-walled seamless steel pipe, and the water cooling device 3 sprays the multi-dimensional medium to achieve uniform and efficient cooling of the steel pipe in the closed box 1 environment.

[0028] When a large-diameter, thick-walled seamless steel pipe enters the device, the sliding frame 21, which is arranged in a circular array on the inner wall of the rotating frame 20, is positioned by the cooperation of the passive rod 22 and the rotating wheel 23. The passive rod 22 slides in the sliding frame 21, so that the rotating wheel 23 adapts to the surface of steel pipes of different diameters by pressure when it contacts the outer wall of the steel pipe.

[0029] Meanwhile, the one-way screw 25 drives the rotating frame 20 to make fine adjustments through the connecting block 24. The self-locking property of the threaded transmission ensures that the steel pipe is stably clamped, avoiding displacement due to medium impact or its own weight during the cooling process.

[0030] The rotating frame 20 is symmetrically rotated and connected to the side wall of the box 1. Under the continuous drive of the one-way screw 25, the rotating frame 20 drives the sliding frame 21 and the clamped steel pipe to rotate synchronously. This rotation action enables the steel pipe to periodically contact the spray area of ​​the water cooling device 3 in the circumferential direction, eliminating the problem of uneven cooling caused by the support point obstruction in the traditional fixing method, and providing a mechanical motion basis for uniform cooling of the outer wall.

[0031] The inlet pipe 32 delivers the cooling medium to the central frame 30. The central frame 30 sprays the medium evenly onto the outer wall of the steel pipe through the nozzles 31 arranged in a circular array. At the same time, the central frame 30 is arranged in a linear array along the inner wall of the box 1, so that the spray area covers the entire length of the steel pipe, achieving full circumferential coverage and axial segmented dual cooling coverage. After use, the water can be discharged from the outlet pipe 33 at the bottom of the box 1.

[0032] When the steel pipe rotates under the drive of the fixing device 2, the nozzle 31 of the water cooling device 3 continuously sprays the medium. The rotation action causes the various points on the outer wall of the steel pipe to alternately contact the medium, avoiding localized long-term cooling or insufficient heat dissipation. At the same time, the symmetrical rotation design of the rotating frame 20 and the box 1 ensures accurate positioning when the steel pipe enters and exits the device, reducing the difficulty of hoisting and alignment. With the sliding adaptability of the sliding frame 21 and the passive rod 22, cooling of steel pipes of different diameters can be achieved without replacing components, improving the equipment's versatility while ensuring cooling efficiency.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for the production of large-diameter, thick-walled seamless steel pipes, comprising: Box (1), characterized in that: The outer wall of the box (1) is rotatably connected to a fixing device (2), which fixes the workpiece by rotation. The inner wall of the box (1) is fixedly connected to a water cooling device (3). The fixing device (2) includes a rotating frame (20), and a sliding frame (21) is rotatably connected to the inner wall of the rotating frame (20). The outer wall of the sliding frame (21) is arranged in a circular array along the central axis of the rotating frame (20).

2. The cooling device for producing large-diameter thick-walled seamless steel pipes according to claim 1, characterized in that: The outer wall of the rotating frame (20) is symmetrically and rotatably connected to the side wall of the box (1).

3. The cooling device for producing large-diameter, thick-walled seamless steel pipes according to claim 1, characterized in that: The inner wall of the sliding frame (21) is slidably connected to a passive rod (22), the inner wall of the passive rod (22) is rotatably connected to a wheel (23), the outer wall of the rotating frame (20) is fixedly connected to a connecting block (24), and the inner wall of the connecting block (24) is threadedly connected to a one-way screw (25).

4. A cooling device for the production of large-diameter thick-walled seamless steel pipes according to claim 3, characterized in that: The passive rod (22) is fixedly connected to the outer wall of the housing (1) at the end away from the rotating wheel (23), and the one-way screw (25) is rotatably connected to the inner wall of the housing (1) through the support block.

5. A cooling device for the production of large-diameter thick-walled seamless steel pipes according to claim 1, characterized in that: The water cooling device (3) includes a central frame (30), and a nozzle (31) is fixedly connected to the outer wall of the central frame (30). The nozzles (31) are arranged in a circular array along the central axis of the central frame (30). A water inlet pipe (32) is fixedly connected to the outer wall of the central frame (30), and a water outlet pipe (33) is fixedly connected to the inner wall of the box (1).

6. A cooling device for the production of large-diameter thick-walled seamless steel pipes according to claim 5, characterized in that: The outer wall of the central frame (30) is fixedly connected to the inner wall of the box (1), the outer wall of the central frame (30) is arranged in a linear array along the inner wall of the box (1), and the outer wall of the water inlet pipe (32) is fixedly connected to the inner wall of the box (1).

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