A seamless steel pipe for convenient butt welding

Abstract

The application relates to the technical field of pipes, in particular to a seamless steel pipe convenient for butt welding, which comprises two groups of seamless steel pipe bodies, the two groups of seamless steel pipe bodies are connected in a head-to-tail mode, a butt rod one is arranged on the inner ring surface of one end of the seamless steel pipe body, a butt rod two is arranged on the inner ring surface of the other end of the seamless steel pipe body, a reserved through hole is arranged on the surface of the seamless steel pipe body, a heat conduction rod is inserted into the reserved through hole, and the heat conduction rod is connected to the surface of the butt rod two. The two ends of the seamless steel pipe convenient for butt welding are respectively provided with the butt rod one and the butt rod two, the butt rod one and the butt rod two are connected after the two groups of seamless steel pipe bodies are spliced and welded, the butt rod one and the butt rod two are matched and connected, the two seamless steel pipes are prevented from being inclined and misaligned, the two seamless steel pipes are accurately butt-jointed and welded and reinforced, and the welding gap is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline, in particular to a seamless steel pipe facilitating butt welding. BACKGROUND

[0002] The seamless steel pipe is a steel pipe without welds on the surface, which is formed by piercing a whole round steel.

[0003] In the prior art, the seamless steel pipe is mainly used as a petroleum geological drilling pipe, a cracking pipe for petroleum and chemical industry, a boiler pipe, a bearing pipe, and a high-precision structural steel pipe for automobiles, tractors, and aviation. Adjacent two seamless steel pipes are connected by welding to realize pipeline laying.

[0004] However, when the two adjacent seamless steel pipes are welded, the two seamless steel pipes need to be clamped by a large-volume support frame to realize accurate butt joint of the two seamless steel pipes, so as to avoid the generation of a small gap due to the deflection of the two seamless steel pipes during welding. SUMMARY

[0005] The present application provides a seamless steel pipe facilitating butt welding to solve the problem of the prior art that the two seamless steel pipes need to be clamped by a large-volume support frame to realize accurate butt joint of the two seamless steel pipes, so as to avoid the generation of a small gap due to the deflection of the two seamless steel pipes during welding.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a seamless steel pipe facilitating butt welding, comprising a seamless steel pipe body, the seamless steel pipe facilitating butt welding comprising:

[0007] The seamless steel pipe body is provided with two groups, and the two groups of seamless steel pipe bodies are connected end to end;

[0008] A butt joint rod one is arranged on the inner ring surface of one end of the seamless steel pipe body, and a butt joint rod two is arranged on the inner ring surface of the other end of the seamless steel pipe body; and

[0009] A reserved through hole is formed on the surface of the seamless steel pipe body, a heat conduction rod is inserted into the reserved through hole, and the heat conduction rod is connected to the surface of the butt joint rod two.

[0010] Preferably, the two ends of the seamless steel pipe body are provided with a weld seam reserved groove, the weld seam reserved groove is an annular groove, and the two ends of the seamless steel pipe body are provided with a sealing gasket ring. After the two groups of seamless steel pipe bodies are connected end to end, the joint of the two seamless steel pipe bodies is connected by a welding mark, and the surface of the weld seam reserved groove is provided with a rubber sleeve ring, which is sleeved on the outside of the welding mark.

[0011] Preferably, both the first connecting rod and the second connecting rod are in the form of an "L"-shaped rod structure, and multiple first connecting rods and second connecting rods are provided. The first connecting rod and the second connecting rod correspond one-to-one, that is, the first connecting rod and the second connecting rod are symmetrically distributed about the center of the long side of the seamless steel pipe body.

[0012] Preferably, one end of the second docking rod is provided with a docking groove, and the surface of the docking groove is provided with multiple rubber retaining rings. The rubber retaining rings and the groove are connected in cooperation. The groove is opened on the surface of the first docking rod. The rubber retaining ring has a ring structure with a "U" shaped cross section. Both inner ring openings of the rubber retaining ring are provided with guide slopes. The groove is an "I" shaped annular groove.

[0013] Preferably, the surface of the slot is provided with multiple limiting protrusions, which are in the form of annular strips. The limiting protrusions and the buckle groove are connected and the buckle groove is opened on the inner ring surface of the rubber retaining ring.

[0014] Preferably, the reserved through hole corresponds one-to-one with the connecting rod 2, the other end of the connecting rod 2 is provided with a screw groove, one end of the heat-conducting rod is provided with an external thread, the external thread and the internal thread on the surface of the screw groove are connected, and the other end of the heat-conducting rod is provided with multiple retaining fingers.

[0015] Preferably, a silicone sealing block is sleeved on the outer side of the heat-conducting rod. The silicone sealing block is fixed in the groove near the inner circumferential surface of the seamless steel pipe with a reserved through hole. A pressure plate is sleeved on the body of the heat-conducting rod. After the heat-conducting rod is locked into the screw groove, the pressure plate clamps the silicone sealing block.

[0016] Preferably, a heat dissipation fin ring 1 is sleeved on the body of the heat-conducting rod, and multiple heat dissipation fin rings 1 are provided. The multiple heat dissipation fin rings 1 are arranged vertically along the heat-conducting rod. The heat dissipation fin rings 1 are connected to heat dissipation fin rings 2 by connecting strips. Both heat dissipation fin rings 1 and 2 are frustum-shaped ring structures. The minimum inner ring diameter of the heat dissipation fin ring 2 is larger than the rod diameter of the heat-conducting rod.

[0017] A delivery pipeline includes the aforementioned seamless steel pipe that is easy to butt weld.

[0018] A delivery pipeline network, comprising the aforementioned delivery pipeline.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The present invention proposes a seamless steel pipe with two ends respectively equipped with a first connecting rod and a second connecting rod. After the two sets of seamless steel pipe bodies are assembled and welded, the first connecting rod and the second connecting rod are connected to prevent the two seamless steel pipes from being misaligned, thereby ensuring that the two seamless steel pipes are accurately connected and welded for reinforcement, and avoiding the appearance of weld gaps. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 Structure diagram of two seamless steel pipe bodies connected in the present application;

[0023] Figure 3 Structure diagram of two seamless steel pipe bodies connected in the present application; Figure 2 Structure diagram of two seamless steel pipe bodies connected in the present application;

[0024] Figure 4 Structure diagram of two seamless steel pipe bodies connected in the present application; Figure 3 Structure diagram of two seamless steel pipe bodies connected in the present application;

[0025] Figure 5 Structure diagram of two seamless steel pipe bodies connected in the present application; Figure 3 Structure diagram of two seamless steel pipe bodies connected in the present application.

[0026] In the figure: seamless steel pipe body 1, weld reserved groove 2, welding mark 3, rubber sleeve ring 4, butt joint rod 1 5, butt joint rod 2 6, butt joint groove 7, rubber snap ring 8, clamping groove 9, limiting protrusion 10, buckle groove 11, reserved through hole 12, silica gel sealing block 13, screwing groove 14, through hole 15, heat conducting rod 16, pressing piece 17, heat dissipation fin ring 1 8, heat dissipation fin ring 2 9, connecting strip 20, clamping finger strip 21, sealing gasket ring 22. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme of the present application clear and complete, and the advantages more clear and obvious, the embodiments of the present application are further described in detail below in combination with the drawings. It should be understood that the specific embodiments described here are part of the embodiments of the present application, not all the embodiments, and are only used to explain the embodiments of the present application, and do not limit the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, the terms "a", "first", "second", "third", "fourth", "fifth", "sixth" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] For the sake of simplicity and illustration, the principles of the embodiments are mainly described by referring to examples. In the following description, many specific details are presented to provide a thorough understanding of the embodiments. However, it is obvious to those skilled in the art that the embodiments can not be limited to these specific details in practice. In some examples, well-known methods and structures are not described in detail to avoid unnecessarily complicating the embodiments. In addition, all embodiments can be used in combination with each other.

[0031] Embodiment one

[0032] Please refer to Figures 1-2 The present application provides a technical solution: a seamless steel pipe convenient for butt welding, comprising a seamless steel pipe body 1, the seamless steel pipe convenient for butt welding comprises two groups of seamless steel pipe bodies 1, the two groups of seamless steel pipe bodies 1 are connected end to end; a butt rod one 5 is arranged on the inner ring surface of one end of the seamless steel pipe body 1, and a butt rod two 6 is arranged on the inner ring surface of the other end of the seamless steel pipe body 1; a reserved through hole 12 is arranged on the surface of the seamless steel pipe body 1, a heat conducting rod 16 is inserted into the inside of the reserved through hole 12, and the heat conducting rod 16 is connected to the surface of the butt rod two 6;

[0033] The butt rod one 5 and the butt rod two 6 are respectively installed on the two ends of the seamless steel pipe body 1, the butt rod one 5 and the butt rod two 6 are connected in cooperation after the two groups of seamless steel pipe bodies 1 are spliced and welded, the two seamless steel pipes are prevented from being skewed and misaligned, so that the two seamless steel pipes are accurately butt-jointed and welded for reinforcement, and the welding gap is avoided.

[0034] Embodiment two

[0035] Refer to the Figure 3 On the basis of embodiment one, in order to realize the welding and fixation of the two seamless steel pipe bodies 1 after being spliced end to end, the two ends of the seamless steel pipe body 1 are both provided with a welding seam reserved groove 2, the welding seam reserved groove 2 is an annular groove, and the two ends of the seamless steel pipe body 1 are both provided with a sealing gasket ring 22, after the two groups of seamless steel pipe bodies 1 are spliced end to end, the spliced part of the two seamless steel pipe bodies 1 is connected through a welding mark 3, and the surface of the welding seam reserved groove 2 is provided with a rubber sleeve ring 4, the rubber sleeve ring 4 is sleeved outside the welding mark 3;

[0036] After the two seamless steel pipe bodies 1 are spliced ​​end to end, the rubber collar 4 is folded outward, and then the welding mark 3 is welded in the two weld seam reserved grooves 2 with the help of a welding gun to achieve welding fixation of the two seamless steel pipe bodies 1. Then the rubber collar 4 is folded back to cover the outside of the welding mark 3 to protect the welding mark 3 and reduce the corrosion of the welding mark 3 by the external environment.

[0037] Example 3

[0038] See attached document Figure 4 Based on Embodiment 2, in order to achieve pre-limiting when assembling two seamless steel pipe bodies 1, both the first connecting rod 5 and the second connecting rod 6 are L-shaped rod structures. Multiple first connecting rods 5 and the second connecting rod 6 are provided. The first connecting rods 5 and the second connecting rod 6 correspond one-to-one, that is, the first connecting rods 5 and the second connecting rod 6 are symmetrically distributed about the long side center of the seamless steel pipe body 1. One end of the second connecting rod 6 is provided with a connecting groove 7. Multiple rubber retaining rings 8 are provided on the surface of the connecting groove 7. The rubber retaining rings 8 and the grooves 9 are connected in cooperation. The grooves 9 are opened on the surface of the first connecting rod 5. The rubber retaining ring 8 is a ring structure with a "U" shaped cross section. Both inner ring openings of the rubber retaining ring 8 are provided with guide slopes. The grooves 9 are "I" shaped annular grooves. Multiple limiting protrusions 10 are provided on the surface of the grooves 9. The limiting protrusions 10 are annular strips. The limiting protrusions 10 and the buckle grooves 11 are connected in cooperation. The buckle grooves 11 are opened on the inner ring surface of the rubber retaining ring 8.

[0039] When two seamless steel pipe bodies 1 are assembled end to end, the first connecting rod 5 is inserted into the corresponding connecting groove 7. At this time, the rubber retaining ring 8 is inserted into the corresponding retaining groove 9 to achieve damping and limiting of the first connecting rod 5 and the second connecting rod 6, preventing the first connecting rod 5 from falling off the second connecting rod 6 at will. At this time, the sealing gasket ring 22 is clamped in front of the two seamless steel pipe bodies 1, and the insertion of the first connecting rod 5 into the connecting groove 7 also prevents the two seamless steel pipe bodies 1 from rotating relative to each other.

[0040] Example 4

[0041] See attached document Figure 5On the basis of embodiment three, in order to realize the internal cooling of the seamless steel pipe body 1, the reserved through hole 12 corresponds to the butt rod two 6 one by one, the other end of the butt rod two 6 is provided with a threaded groove 14, one end of the heat conduction rod 16 is provided with external threads, the external threads and the internal threads on the surface of the threaded groove 14 are connected, and the other end of the heat conduction rod 16 is provided with a plurality of clamping finger strips 21, the outside of the heat conduction rod 16 is sleeved with a silica gel sealing block 13, the silica gel sealing block 13 is fixed at the notch of the reserved through hole 12 close to the inner ring surface of the seamless steel pipe body 1, a pressing piece 17 is sleeved on the rod body of the heat conduction rod 16, the silica gel sealing block 13 is clamped by the pressing piece 17 after the heat conduction rod 16 is locked to the threaded groove 14, a heat dissipation fin ring one 18 is sleeved on the rod body of the heat conduction rod 16, the heat dissipation fin ring one 18 is provided with a plurality of heat dissipation fin rings two 19, the plurality of heat dissipation fin rings one 18 are arranged in up and down along the heat conduction rod 16, the heat dissipation fin ring one 18 is connected with the heat dissipation fin ring two 19 through the connecting strip 20, the heat dissipation fin ring one 18 and the heat dissipation fin ring two 19 are both in the shape of trapezoidal ring structure, the smallest inner ring diameter of the heat dissipation fin ring two 19 is greater than the rod diameter of the heat conduction rod 16;

[0042] The fingers are clamped between the adjacent two clamping finger strips 21, the bottom end of the heat conduction rod 16 is threaded in the threaded groove 14 after passing through the perforation 15, at this time the pressing piece 17 extrudes the silica gel sealing block 13, so that the inner ring of the silica gel sealing block 13 tightly wraps the heat conduction rod 16, the heat dissipation fin ring one 18 and the heat dissipation fin ring two 19 increase the heat dissipation area of the heat conduction rod 16, and the heat dissipation fin ring one 18 and the heat dissipation fin ring one 18 reduce the entry of external particulate matter into the reserved through hole 12.

[0043] Embodiment five

[0044] A conveying pipeline comprising the seamless steel pipe convenient for butt welding.

[0045] Embodiment six

[0046] A conveying pipeline network comprising the conveying pipeline.

[0047] Although the above describes the specific embodiments of the present application in order to enable those skilled in the art to understand the present application, the present application is not limited to the scope of the specific embodiments, and for those skilled in the art, all application creations utilizing the concept of the present application are within the protection of the present application as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims.

Claims

1. A seamless steel pipe that is easy to butt weld, comprising a seamless steel pipe body (1), characterized in that: The seamless steel pipe that facilitates butt welding includes: Two sets of seamless steel pipe bodies (1) are provided, and the two sets of seamless steel pipe bodies (1) are connected end to end; Connecting rod one (5) is provided on the inner ring surface of one end of the seamless steel pipe body (1), and connecting rod two (6) is provided on the inner ring surface of the other end of the seamless steel pipe body (1); and A reserved through hole (12) is opened on the surface of the seamless steel pipe body (1). A heat-conducting rod (16) is inserted into the inside of the reserved through hole (12). The heat-conducting rod (16) is connected to the surface of the connecting rod (6). Both the first connecting rod (5) and the second connecting rod (6) are in the form of an "L"-shaped rod structure. Multiple first connecting rods (5) and second connecting rods (6) are provided. The first connecting rods (5) and the second connecting rods (6) correspond one-to-one, that is, the first connecting rods (5) and the second connecting rods (6) are symmetrically distributed about the long side center of the seamless steel pipe body (1). One end of the second docking rod (6) is provided with a docking groove (7), and a plurality of rubber retaining rings (8) are provided on the surface of the docking groove (7). The rubber retaining rings (8) and the groove (9) are connected in cooperation. The groove (9) is opened on the surface of the first docking rod (5). The rubber retaining ring (8) has a ring structure with a "U" shaped cross section. Both inner ring openings of the rubber retaining ring (8) are provided with guide slopes. The groove (9) is an "I" shaped annular groove. The surface of the slot (9) is provided with multiple limiting protrusions (10). The limiting protrusions (10) are in the shape of annular strips. The limiting protrusions (10) and the buckle groove (11) are connected in cooperation. The buckle groove (11) is opened on the inner ring surface of the rubber retaining ring (8).

2. The seamless steel pipe for convenient butt welding according to claim 1, characterized in that: Both ends of the seamless steel pipe body (1) are provided with weld seam reserved grooves (2). The weld seam reserved grooves (2) are annular grooves. Both ends of the seamless steel pipe body (1) are provided with sealing gaskets (22). After the two sets of seamless steel pipe bodies (1) are assembled end to end, the splice of the two seamless steel pipe bodies (1) is connected by welding marks (3). The surface of the weld seam reserved grooves (2) is provided with rubber collars (4). The rubber collars (4) are fitted on the outside of the welding marks (3).

3. A seamless steel pipe for easy butt welding according to claim 2, characterized in that: The reserved through hole (12) corresponds one-to-one with the connecting rod two (6). The other end of the connecting rod two (6) is provided with a screw groove (14). One end of the heat-conducting rod (16) is provided with an external thread. The external thread and the internal thread on the surface of the screw groove (14) are connected in a fit. The other end of the heat-conducting rod (16) is provided with multiple locking fingers (21).

4. A seamless steel pipe for easy butt welding according to claim 3, characterized in that: The outer side of the heat-conducting rod (16) is fitted with a silicone sealing block (13). The silicone sealing block (13) is fixed in the groove of the reserved through hole (12) near the inner ring surface of the seamless steel pipe body (1). A pressure plate (17) is fitted on the rod body of the heat-conducting rod (16). After the heat-conducting rod (16) is locked to the screw groove (14), the pressure plate (17) clamps the silicone sealing block (13).

5. A seamless steel pipe for easy butt welding according to claim 4, characterized in that: The heat-conducting rod (16) is fitted with a heat dissipation fin ring 1 (18), and multiple heat dissipation fin rings 1 (18) are provided. The multiple heat dissipation fin rings 1 (18) are arranged vertically along the heat-conducting rod (16). The heat dissipation fin ring 1 (18) is connected to a heat dissipation fin ring 2 (19) through a connecting strip (20). Both the heat dissipation fin ring 1 (18) and the heat dissipation fin ring 2 (19) are in the form of a frustum-shaped ring structure. The minimum inner ring diameter of the heat dissipation fin ring 2 (19) is larger than the rod diameter of the heat-conducting rod (16).

6. A conveying pipeline, characterized in that: This includes seamless steel pipes that are easy to butt weld, as described in any one of claims 1-5 above.

7. A transmission pipeline network, characterized in that: Includes the delivery pipeline described in claim 6 above.

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