Welded steel pipe for marine drilling platform

Abstract

The utility model discloses a welded steel pipe for a marine drilling platform, and relates to the technical field of steel pipes. Comprising a first steel pipe, two first installation parts and two auxiliary mechanisms, each first installation part is fixedly arranged on the two sides of the outer wall of the first steel pipe, each auxiliary mechanism is arranged between the two first installation parts, each auxiliary mechanism comprises an installation part, an L-shaped rod, a positioning groove and a limiting part, the installation parts are arranged on the first installation parts, and the L-shaped rods are arranged on the first installation parts. The L-shaped rod is embedded in the inner wall of the positioning groove in a sliding mode, the positioning groove is formed in the installation component, and the limiting component is arranged on the installation component. According to the welded steel pipe for the marine drilling platform, the first steel pipe and the second steel pipe can be aligned and fixed together through the auxiliary mechanism, the welding efficiency is improved, and the situation that the overall structural strength of the welded steel pipe and the stability of the welding position are affected due to the fact that the two steel pipes deviate in the welding process, the welding area is not uniform, and the welding strength is reduced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipes, in particular to a welded steel pipe for an offshore drilling platform. Background Art

[0002] Offshore drilling platforms are important facilities for exploiting marine oil, natural gas and other resources. The welded steel pipes used in offshore drilling platforms are generally made of high-strength steel and processed through welding technology. They have high welding quality and mechanical properties. As an important part of the platform structure, welded steel pipes need to withstand multiple tests such as deep-sea high pressure, seawater corrosion and sea breeze erosion.

[0003] Welded steel pipes for offshore drilling platforms need to be welded together when in use. When the two steel pipes are welded, they cannot be fixedly aligned and are prone to offset, resulting in uneven welding areas, reduced welding strength, and affecting the overall structural strength of the welded steel pipe and the stability of the weld. Utility Model Content

[0004] The utility model provides a welded steel pipe for an offshore drilling platform. Through an auxiliary mechanism, a first steel pipe and a second steel pipe can be aligned and fixed together, thereby improving welding efficiency and preventing the two steel pipes from offsetting during welding, resulting in an uneven welding area, a decrease in welding strength, and affecting the overall structural strength of the welded steel pipe and the stability of the weld.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: A welded steel pipe for an offshore drilling platform, comprising:

[0006] First steel pipe;

[0007] There are two first mounting members, each of which is fixedly disposed on both sides of the outer wall of the first steel pipe;

[0008] Auxiliary mechanisms are provided in two groups, each group of the auxiliary mechanisms is provided between two first mounting members, each group of the auxiliary mechanisms comprises a mounting member, an L-shaped rod, a positioning groove and a limiting member, the mounting member is provided on the first mounting member, the L-shaped rod is slidably embedded in the inner wall of the positioning groove, the positioning groove is provided on the mounting member, and the limiting member is provided on the mounting member; and

[0009] The second steel pipe is located at one side of the outer wall of the first steel pipe, and second mounting parts are installed on both sides of the outer wall of the second steel pipe.

[0010] Furthermore, each group of the mounting components includes a first connecting member, a mounting block, a cavity and a second connecting member, the first connecting member is installed between each first mounting member by bolts, the mounting block is fixedly arranged on one side of the outer wall of the first connecting member, the cavity is opened on the inner wall of the mounting block, and the second connecting member is installed between each second mounting member by bolts.

[0011] Furthermore, each of the L-shaped rods is fixedly disposed on one side of the outer wall of the second connecting member, and each of the positioning grooves is opened on one side of the outer wall of the mounting block.

[0012] Furthermore, each group of the limiting components includes a limiting block, a limiting hole and an elastic component, the limiting block is arranged on the elastic component, the limiting hole is opened on one side of the outer wall of the L-shaped rod, the limiting block is slidably embedded in the inner wall of the limiting hole, and the elastic component is arranged in the cavity.

[0013] Furthermore, each group of the elastic components includes a spring, a limit plate and a pull rod, the spring is fixedly arranged between the limit plate and the cavity, the limit plate is fixedly arranged at the top of the outer wall of the limit block, and the limit plate is slidably embedded in the inner wall of the cavity, one side of the outer wall of the pull rod is fixedly arranged at the top of the outer wall of the limit plate, and the pull rod slides through the top of the outer wall of the mounting block.

[0014] Furthermore, a cross block is fixedly provided on one side of the outer wall of each pull rod.

[0015] The utility model provides a welded steel pipe for an offshore drilling platform. The utility model has the following beneficial effects: the welded steel pipe for an offshore drilling platform can align and fix a first steel pipe and a second steel pipe together through an auxiliary mechanism, thereby improving welding efficiency, so as to avoid offset between the two steel pipes during welding, resulting in uneven welding areas, reduced welding strength, and affecting the overall structural strength of the welded steel pipe and the stability of the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the utility model;

[0019] Figure 4 For the utility model Figure 2 A magnified schematic diagram of center A.

[0020] In the figure: 1. first steel pipe; 2. first mounting member; 3. auxiliary mechanism; 301. L-shaped rod; 302. positioning groove; 303. first connecting member; 304. mounting block; 305. cavity; 306. limit block; 307. limit hole; 308. spring; 309. limit plate; 310. pull rod; 311. second connecting member; 4. second steel pipe; 5. second mounting member; 6. cross block. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution: a welded steel pipe for an offshore drilling platform, comprising:

[0023] First steel pipe 1;

[0024] There are two first mounting members 2, each of which is fixedly arranged on both sides of the outer wall of the first steel pipe 1;

[0025] The auxiliary mechanism 3 is provided with two groups, each group of the auxiliary mechanism 3 is provided between the two first mounting members 2, each group of the auxiliary mechanism 3 comprises a mounting member, an L-shaped rod 301, a positioning groove 302 and a limiting member, the mounting member is provided on the first mounting member 2, the L-shaped rod 301 is slidably embedded in the inner wall of the positioning groove 302, the positioning groove 302 is provided on the mounting member, and the limiting member is provided on the mounting member; and

[0026] The second steel pipe 4 is located at one side of the outer wall of the first steel pipe 1 , and second mounting parts 5 are installed on both sides of the outer wall of the second steel pipe 4 .

[0027] In this embodiment: the materials of the first steel pipe 1 and the second steel pipe 4 are both nickel-based alloys, which can improve the corrosion resistance of the welded steel pipe to prevent the welded steel pipe from being easily corroded during long-term use. A plurality of protrusions are provided at one end of the first steel pipe 1, and a plurality of grooves are provided on one side of the outer wall of the second steel pipe 4. The protrusions and the grooves are slidably matched to position the connection between the first steel pipe 1 and the second steel pipe 4. The auxiliary mechanism 3 can be installed on the first steel pipe 1 and the second steel pipe 4 through the first mounting member 2 and the second mounting member 5. The first steel pipe 1 and the second steel pipe 4 can be connected through the auxiliary mechanism 3. The steel pipes 4 are aligned and fixed together to improve welding efficiency, and it is convenient to weld the first steel pipe 1 and the second steel pipe 4 together to form a welded steel pipe for an offshore drilling platform, so as to avoid offset between the two steel pipes during welding, resulting in an uneven welding area, which reduces the welding strength and affects the bearing capacity of the overall structure and the stability of the welding area. The L-shaped rod 301 on the mounting component enters the positioning groove 302, and cooperates with the limiting component to align and fix the first steel pipe 1 and the second steel pipe 4 together, which can improve the welding quality, thereby increasing the overall structural strength of the welded steel pipe and the stability of the weld.

[0028] Specifically, each set of mounting components includes a first connecting member 303, a mounting block 304, a cavity 305 and a second connecting member 311. The first connecting member 303 is installed between each first mounting member 2 by bolts, the mounting block 304 is fixedly arranged on one side of the outer wall of the first connecting member 303, the cavity 305 is opened on the inner wall of the mounting block 304, and the second connecting member 311 is installed between each second mounting member 5 by bolts.

[0029] In this embodiment: the auxiliary mechanism 3 can be installed on the first steel pipe 1 and the second steel pipe 4 through the first connecting member 303 and the second connecting member 311, and the cavity 305 on the mounting block 304 is used for installing and placing the limiting component.

[0030] Specifically, each L-shaped rod 301 is fixedly disposed on one side of the outer wall of the second connecting member 311 , and each positioning groove 302 is opened on one side of the outer wall of the mounting block 304 .

[0031] In this embodiment: the second connecting member 311 is installed on the second mounting member 5, and then the first steel pipe 1 and the second steel pipe 4 are tightly attached to each other, and the L-shaped rod 301 enters the positioning groove 302, so that the first steel pipe 1 and the second steel pipe 4 can be connected together.

[0032] Specifically, each set of limiting components includes a limiting block 306, a limiting hole 307 and an elastic component. The limiting block 306 is arranged on the elastic component, the limiting hole 307 is opened on one side of the outer wall of the L-shaped rod 301, the limiting block 306 is slidably embedded in the inner wall of the limiting hole 307, and the elastic component is arranged in the cavity 305.

[0033] In this embodiment: by the limit block 306 on the elastic component entering the limit hole 307, the position of the L-shaped rod 301 can be fixed, so that the first steel pipe 1 and the second steel pipe 4 are fixedly connected together, which facilitates welding of the connection between the first steel pipe 1 and the second steel pipe 4.

[0034] Specifically, each group of elastic components includes a spring 308, a limit plate 309 and a pull rod 310. The spring 308 is fixedly arranged between the limit plate 309 and the cavity 305. The limit plate 309 is fixedly arranged at the top of the outer wall of the limit block 306, and the limit plate 309 is slidably embedded in the inner wall of the cavity 305. One side of the outer wall of the pull rod 310 is fixedly arranged at the top of the outer wall of the limit plate 309, and the pull rod 310 slides through the top of the outer wall of the mounting block 304.

[0035] In this embodiment: one end of the spring 308 is fixedly arranged on one side of the inner wall of the cavity 305, and the other end of the spring 308 is fixedly arranged on one side of the outer wall of the limit plate 309. Through the elasticity of the spring 308, the limit block 306 on the limit plate 309 can pass through the limit hole 307 to fix the L-shaped rod 301, so that the L-shaped rod 301 is fixed in the positioning groove 302.

[0036] Specifically, a cross block 6 is fixedly disposed on one side of the outer wall of each pull rod 310 .

[0037] In this embodiment, the cross block 6 is used to facilitate pulling the pull rod 310 so that the limiting block 306 on the limiting plate 309 leaves the inside of the limiting hole 307 .

[0038] When in use, first install the first connecting member 303 on the first mounting member 2 on the first steel pipe 1, and then install the second connecting member 311 on the second mounting member 5 on the second steel pipe 4, then stick the first steel pipe 1 and the second steel pipe 4 together, and at the same time pull each pull rod 310 outward so that each L-shaped rod 301 enters the positioning groove 302 on the mounting block 304, and then release the pulling of the pull rod 310. Through the elasticity of the spring 308, the limit block 306 on the limit plate 309 can pass through the limit hole 307 to fix the L-shaped rod 301, so that the L-shaped rod 301 is fixed in the positioning groove 302, and the first steel pipe 1 and the second steel pipe 4 can be aligned and fixed together, thereby improving the welding efficiency.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welded steel pipe for an offshore drilling platform, characterized in that: include: A first steel pipe (1); Two first mounting members (2) are provided, and each of the first mounting members (2) is fixedly arranged on two sides of the outer wall of the first steel pipe (1); The auxiliary mechanism (3) is provided with two groups, each group of the auxiliary mechanism (3) is provided between two first mounting members (2), each group of the auxiliary mechanism (3) comprises a mounting member, an L-shaped rod (301), a positioning groove (302) and a limiting member, the mounting member is provided on the first mounting member (2), the L-shaped rod (301) is slidably embedded in the inner wall of the positioning groove (302), the positioning groove (302) is provided on the mounting member, and the limiting member is provided on the mounting member; and The second steel pipe (4) is located on one side of the outer wall of the first steel pipe (1), and second mounting parts (5) are mounted on both sides of the outer wall of the second steel pipe (4).

2. The welded steel pipe for an offshore drilling platform according to claim 1, characterized in that: Each group of the mounting components comprises a first connecting member (303), a mounting block (304), a cavity (305) and a second connecting member (311); the first connecting member (303) is mounted between each first mounting member (2) by means of bolts; the mounting block (304) is fixedly arranged on one side of the outer wall of the first connecting member (303); the cavity (305) is opened on the inner wall of the mounting block (304); and the second connecting member (311) is mounted between each second mounting member (5) by means of bolts.

3. A welded steel pipe for an offshore drilling platform according to claim 2, characterized in that: Each of the L-shaped rods (301) is fixedly arranged on one side of the outer wall of the second connecting member (311), and each of the positioning grooves (302) is opened on one side of the outer wall of the mounting block (304).

4. The welded steel pipe for an offshore drilling platform according to claim 3, characterized in that: Each group of the limiting components comprises a limiting block (306), a limiting hole (307) and an elastic component, wherein the limiting block (306) is arranged on the elastic component, the limiting hole (307) is opened on one side of the outer wall of the L-shaped rod (301), the limiting block (306) is slidably embedded in the inner wall of the limiting hole (307), and the elastic component is arranged in the cavity (305).

5. The welded steel pipe for an offshore drilling platform according to claim 4, characterized in that: Each group of the elastic components includes a spring (308), a limit plate (309) and a pull rod (310), the spring (308) is fixedly arranged between the limit plate (309) and the cavity (305), the limit plate (309) is fixedly arranged at the top of the outer wall of the limit block (306), and the limit plate (309) is slidably embedded in the inner wall of the cavity (305), one side of the outer wall of the pull rod (310) is fixedly arranged at the top of the outer wall of the limit plate (309), and the pull rod (310) slides through the top of the outer wall of the mounting block (304).

6. The welded steel pipe for an offshore drilling platform according to claim 5, characterized in that: A cross block (6) is fixedly disposed on one side of the outer wall of each pull rod (310).

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