High-strength deep sea steel pipe
By adopting the multi-point welding and positioning plate design of the reinforced ring barrel and the steel pipe body in deep sea steel pipe, the problem of welding stress concentration caused by insufficient wall thickness is solved, the strength and stability of the steel pipe connection are improved, and the deep sea steel pipe is ensured during the pile driving process firm insertion in.
Patent Information
- Application Number
- CN202420946133.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-30
AI Technical Summary
During the construction process, deep-sea steel pipes have thin wall thickness and small contact area, which leads to concentrated stress at the welding site, which easily leads to deformation or cracks, affecting the connection strength.
The reinforced ring barrel sleeve is installed in the steel pipe body, and the reinforced ring barrel and the steel pipe body are welded by welding. Welding holes and welding gaps are set to ensure the stable connection between the reinforced ring barrel and the steel pipe body, and through the positioning plate Ensure the insertion depth is consistent.
The end thickness and welding strength of the steel pipe body are improved, the welding points are increased, the stability of the connection between adjacent steel pipes is enhanced, and the deformation risk is reduced during pile driving.
Smart Images
Figure CN222206296U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of deep-sea steel pipes, and in particular to a high-strength deep-sea steel pipe. Background Art
[0002] Deep-sea steel pipes are mainly used in marine projects as steel pipe piles inserted into seawater. In order to facilitate the transportation of deep-sea steel pipes, the length of deep-sea steel pipes is usually limited by the length of the transport vehicle, and the design depth of steel pipe piles in the sea area is much greater than the length of a single deep-sea steel pipe. Therefore, workers usually weld multiple deep-sea steel pipes together at the construction site. When the steel pipe piles sink to the seabed, they also need to be hammered on the top of the deep-sea steel pipe by the supporting piling equipment, so that the deep-sea steel pipe can be stably inserted into the seabed.
[0003] However, the connection strength between two adjacent steel pipes is easily affected by the size of the contact area of the two steel pipes. Therefore, if the wall thickness of the steel pipe is thinner, the contact area of the two steel pipes will be relatively small. In the process of the piling equipment hammering the steel pipe to the seabed, the stress on the welding point of the two adjacent steel pipes is relatively concentrated, which is prone to deformation or cracks. Utility Model Content
[0004] In order to improve the strength of deep-sea steel pipes, the present application provides a high-strength deep-sea steel pipe.
[0005] The present application provides a high-strength deep-sea steel pipe, which adopts the following technical solution:
[0006] A high-strength deep-sea steel pipe comprises a steel pipe body and a reinforcing ring tube, wherein the steel pipe body is sleeved in the reinforcing ring tube, the outer peripheral wall of the reinforcing ring tube is in contact with the inner peripheral wall of the steel pipe body, and the reinforcing ring tube is welded inside the steel pipe body.
[0007] In order to improve the stability and connection strength of the reinforcement ring tube and the steel pipe body after welding, a welding hole is opened on the outer wall of the reinforcement ring tube, and the welding hole penetrates the wall thickness of the reinforcement ring tube.
[0008] In order to further improve the stability of the reinforcement ring tube and the steel pipe body after welding at multiple positions, a plurality of welding holes are opened, and the plurality of welding holes are arranged at intervals circumferentially on the reinforcement ring tube.
[0009] In order to improve the strength of two adjacent steel pipe bodies after welding, the reinforcing ring tube does not protrude from the interior of the steel pipe body, and a welding gap is provided between the reinforcing ring tube and the end of the steel pipe body.
[0010] In order to improve the strength of the two ends of the steel pipe body after being welded to the remaining steel pipes, two reinforcing ring tubes are provided, and the two reinforcing ring tubes are respectively located on two opposite sides of the steel pipe body.
[0011] In order to enable the reinforcement ring tube to be accurately inserted to a specific depth inside the steel pipe body, a positioning plate for limiting the insertion depth of the reinforcement ring tube is welded on the inner wall of the steel pipe body.
[0012] In order to ensure that the distances from the ends of the reinforcing ring tube to each position are more consistent after the reinforcing ring tube is inserted into the steel tube body, a plurality of positioning plates are arranged at intervals in the circumferential direction inside the steel tube body.
[0013] In order to ensure that the outer circumferential wall of the reinforcing ring tube fits closely with the inner circumferential wall of the steel tube body and is easily inserted into the steel tube body, the reinforcing ring tube is formed by bending a steel plate.
[0014] In summary, the present application includes at least one of the following beneficial technical effects:
[0015] The reinforcing ring is welded to the end of the steel pipe body, which increases the thickness of the end of the steel pipe body, thereby increasing the strength of the two adjacent steel pipe bodies after welding, and preventing the welding of the two adjacent steel pipe bodies from being easily deformed during piling.
[0016] Compared with simply welding the two ends of the reinforcing ring tube to the steel pipe body, the opening of multiple welding holes allows the staff to increase the welding points between the steel pipe body and the reinforcing ring tube through the welding holes, thereby increasing the strength of the connection between the reinforcing ring tube and the steel pipe body after welding;
[0017] There is a welding gap between the end of the reinforcing ring tube and the end of the steel pipe body, so that when welding two adjacent steel pipe bodies, the ends of the two adjacent steel pipe bodies can be welded first, and then the reinforcing ring tube inside the two connected steel pipe bodies can be welded, thereby increasing the welding points and improving the strength of the two adjacent steel pipe bodies after welding. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the deep-sea steel pipe in the embodiment of the present application.
[0019] Figure 2 It is an exploded schematic diagram of the steel pipe body and the reinforcing ring tube in the embodiment of the present application.
[0020] Explanation of the accompanying reference numerals: 1. steel pipe body; 11. welding gap; 12. positioning plate; 2. reinforcing ring tube; 21. welding hole. DETAILED DESCRIPTION
[0021] The following is combined with Figure 1-2 This application is described in further detail.
[0022] The present application embodiment discloses a high-strength deep-sea steel pipe. Figure 1The high-strength deep-sea steel pipe includes a steel pipe body 1 and a reinforcing ring tube 2. The reinforcing ring tube 2 is located inside the steel pipe body 1 and at the end of the steel pipe body 1, and the reinforcing ring tube 2 is welded inside the steel pipe body 1. Among them, two reinforcing ring tubes 2 are arranged inside each steel pipe body 1, and the two reinforcing ring tubes 2 are respectively located at the two ends inside the steel pipe body 1. Such an arrangement makes the strength of two adjacent steel pipe bodies 1 greater after welding, and it is not easy to bend during piling.
[0023] Reference Figure 1 Since the two reinforcing ring tubes 2 have the same structure, the following description will take one reinforcing ring tube 2 as an example. The reinforcing ring tube 2 is formed by bending a steel plate, so that the reinforcing ring tube 2 can be easily inserted into the steel pipe body 1. The outer peripheral wall of the reinforcing ring tube 2 abuts against the inner peripheral wall of the steel pipe body 1, so that the steel pipe body 1 and the reinforcing ring tube 2 fit better, and the strength after welding is greater.
[0024] Reference Figure 1 A weld hole 21 is provided on the outer wall of the reinforcing ring tube 2. The weld hole 21 penetrates the wall thickness of the reinforcing ring tube 2 and communicates with the interior of the reinforcing ring tube 2. The weld hole 21 extends along the axial direction of the reinforcing ring tube 2. During welding, the two ends of the reinforcing ring tube 2 can be welded and fixed to the steel pipe body 1 first, and then the reinforcing ring tube 2 is welded and fixed to the steel pipe body 1 at the position of the weld hole 21 through the weld hole 21, thereby increasing the welding points of the reinforcing ring tube 2 and the steel pipe body 1, and improving the strength of the reinforcing ring tube 2 and the steel pipe body 1 after welding. Among them, a plurality of weld holes 21 are provided, and the plurality of weld holes 21 are arranged at intervals along the circumference of the reinforcing ring tube 2, so as to increase the number of welding points between the steel pipe body 1 and the reinforcing ring tube 2.
[0025] There is a welding gap 11 between the reinforcing ring tube 2 and the end of the steel pipe body 1. When welding two steel pipe bodies 1, the welding rod or welding wire can first pass through the welding gap 11 and then weld the ends of the two steel pipe bodies 1; then the welding rod or welding wire passes through the welding gap 11 to weld the reinforcing ring tubes 2 in the two adjacent steel pipe bodies 1. This improves the stability of the two steel pipe bodies 1 after welding, making the two steel pipe bodies 1 more secure after welding.
[0026] Reference Figure 1 and Figure 2 In order to ensure that the welding gap 11 formed by the reinforcing ring tube 2 on each steel pipe body 1 is relatively consistent, a plurality of positioning plates 12 are welded on the inner wall of the steel pipe body 1, and the plurality of positioning plates 12 are arranged at intervals along the circumference of the steel pipe body 1. When the reinforcing ring tube 2 is installed, when one end of the reinforcing ring tube 2 close to the positioning plate 12 abuts against the positioning plate 12, the movement of the reinforcing ring tube 2 into the steel pipe body 1 will be limited, and then the staff can weld the reinforcing ring tube 2.
[0027] The implementation principle of a high-strength deep-sea steel pipe in an embodiment of the present application is as follows: before the deep-sea steel pipe leaves the factory, the reinforcing ring tube 2 that has been bent and formed is inserted into the interior of the steel pipe body 1 from the end of the steel pipe body 1 and the outer circumferential wall of the reinforcing ring tube 2 is abutted against the inner circumferential wall of the steel pipe body 1. When the reinforcing ring tube 2 abuts against the positioning plate 12, the two ends of the reinforcing ring tube 2 are welded, and then the reinforcing ring tube 2 is welded and fixed to the steel pipe body 1 at the positions of multiple weld holes 21 through the weld holes 21.
[0028] When two steel pipe bodies 1 need to be welded at the construction site, the two steel pipe bodies 1 are first butt-jointed and then welded from the outside, then the steel pipe bodies 1 are welded inside, and finally the two reinforcing ring tubes 2 on the two adjacent steel pipe bodies 1 are welded and fixed.
[0029] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A high-strength deep-sea steel pipe, characterized in that: It comprises a steel pipe body (1) and a reinforcing ring tube (2), wherein the steel pipe body (1) is sleeved inside the reinforcing ring tube (2), the outer circumferential wall of the reinforcing ring tube (2) is in contact with the inner circumferential wall of the steel pipe body (1), and the reinforcing ring tube (2) is welded inside the steel pipe body (1).
2. A high-strength deep-sea steel pipe according to claim 1, characterized in that: A welding hole (21) is provided on the outer wall of the reinforcing ring tube (2), and the welding hole (21) penetrates the wall thickness of the reinforcing ring tube (2).
3. A high-strength deep-sea steel pipe according to claim 2, characterized in that: A plurality of the welding holes (21) are provided, and the plurality of welding holes (21) are arranged at intervals in the circumferential direction on the reinforcing ring tube (2).
4. A high-strength deep-sea steel pipe according to claim 3, characterized in that: The reinforcing ring tube (2) does not protrude from the interior of the steel pipe body (1), and a welding gap (11) is provided between the reinforcing ring tube (2) and the end of the steel pipe body (1).
5. The high-strength deep-sea steel pipe according to claim 1, characterized in that: Two reinforcement ring tubes (2) are provided, and the two reinforcement ring tubes (2) are respectively located on two opposite sides of the steel pipe body (1).
6. The high-strength deep-sea steel pipe according to claim 1, characterized in that: A positioning plate (12) for limiting the insertion depth of the reinforcing ring tube (2) is welded on the inner wall of the steel pipe body (1).
7. A high-strength deep-sea steel pipe according to claim 6, characterized in that: A plurality of positioning plates (12) are arranged at intervals in the circumferential direction inside the steel pipe body (1).
8. The high-strength deep-sea steel pipe according to claim 1, characterized in that: The reinforcing ring cylinder (2) is formed by bending a steel plate.