Anti-static oil and gas conveying pipeline

Abstract

The utility model relates to the technical field of conveying pipelines, and discloses an anti-static oil and gas conveying pipeline which comprises a pipeline body, a functional ring is fixedly installed at one end of the outer wall face of the pipeline body, a sealing ring is fixedly connected to the other end of the outer wall face of the pipeline body, a functional clamping groove is formed in the functional ring, and a sealing ring is fixedly connected to the sealing ring. And the position of the functional clamping groove corresponds to the position of the sealing ring, a rotatable extrusion ring is movably clamped in the functional clamping groove, and a connecting ring is fixedly connected to the end, away from the pipeline body, of the inner wall face of the extrusion ring. In the utility model, when the pipeline is spliced, the rear connecting ring is in threaded connection with the front pipeline main body to drive the extrusion ring to move, the extrusion ring is in extrusion contact with the outer wall of the front sealing ring, and the extrusion force is gradually increased due to the special shape of the sealing ring, so that the efficient sealing effect is achieved; and the problem of leakage caused by untight sealing in the oil and gas conveying process is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying pipelines, in particular to an anti-static oil and gas conveying pipeline. Background Art

[0002] In the existing oil and gas pipeline technology, the common pipeline splicing method usually only focuses on the basic realization of the connection, but has shortcomings in sealing. For example, many traditional pipeline splicing structures only use simple sleeves or conventional sealing gaskets. During long-term use, due to factors such as pressure changes, temperature fluctuations of the oil and gas inside the pipeline, and slight deformation of the pipeline itself, these simple sealing methods are difficult to ensure a tight fit at the joint. This leads to an increased risk of oil and gas leakage, which not only causes a waste of resources, but may also cause serious consequences such as safety accidents and environmental pollution. To this end, we propose an anti-static oil and gas pipeline. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an anti-static oil and gas transmission pipeline to solve the above-mentioned problems.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An anti-static oil and gas transmission pipeline comprises a pipeline body, a functional ring is fixedly installed on one end of the outer wall surface of the pipeline body, a sealing ring is fixedly connected to the other end of the outer wall surface of the pipeline body, a functional slot is provided on the functional ring, the position of the functional slot corresponds to the position of the sealing ring, a rotatable extrusion ring is movably connected inside the functional slot, a connecting ring is fixedly connected to one end of the inner wall surface of the extrusion ring away from the pipeline body, an external thread is provided on the end of the outer wall surface of the outer side wall of the pipeline body away from the functional ring, an internal thread matched with the external thread on the pipeline body is provided on the inner wall surface of the connecting ring, a limiting mechanism is provided on the end of the outer wall surface of the pipeline body away from the functional ring, and an electrostatic lead-out stud is provided on the pipeline body.

[0006] Furthermore, the sealing ring is an annular elastic ring, and the outer diameter of the end of the sealing ring away from the pipeline body gradually decreases in the direction away from the pipeline body.

[0007] Furthermore, the extrusion ring is a circular ring block with a horizontal L-shaped cross section, and the horizontal portion of the extrusion ring extends into the functional slot and is arranged toward the pipe body. The end of the horizontal portion on the extrusion ring corresponds to the position of the sealing ring. A slide groove is provided on the inner wall surface of the functional ring. A slider is fixedly connected to the outer wall surface of the extrusion ring at a position corresponding to the slide groove, and the slider is movably engaged in the interior of the slide groove.

[0008] Furthermore, the limiting mechanism includes a fixing ring, a fixing column and a limiting ring. Two fixing rings are symmetrically fixedly connected to both sides of the outer wall surface of the pipeline body away from the end of the functional ring. The interiors of the two fixing rings are movably connected with removable fixing columns. An annular limiting plate is provided at one end of the fixing column, and an annular limiting ring is provided at the other end.

[0009] Furthermore, two connecting grooves are symmetrically opened on both sides of one end of the connecting ring away from the pipeline body, the internal shape and size of the two connecting grooves are adapted to the shape and size of the fixing column, and the interiors of the two connecting grooves are both provided with limiting grooves matching with the limiting ring.

[0010] Furthermore, the limiting ring is an elastic block in the shape of a circular ring, and the cross section of the limiting ring is an arc shape with a convex middle portion, and the shape and size of the limiting groove are adapted to the shape and size of the limiting ring.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. A sealing and connecting structure consisting of a sealing ring, an extrusion ring, a connecting ring and a functional ring is provided, wherein the sealing ring is an elastic circular ring block with a special shape, the extrusion ring is an circular ring block with an L-shaped cross section and a slider matched with a functional ring groove, the connecting ring is fixed to the extrusion ring and the inner wall has an internal thread adapted to the external thread of the pipeline body. When the pipelines are spliced, the rear connecting ring is connected to the front pipeline body thread to drive the extrusion ring to move, and the extrusion ring is squeezed and contacted with the outer wall of the front sealing ring, and due to the special shape of the sealing ring, the extrusion force gradually increases, thereby achieving an efficient sealing effect, effectively avoiding the problem of leakage of oil and gas due to poor sealing during transportation.

[0013] 2. By setting a limiting mechanism consisting of a fixing ring, a fixing column, a limiting ring, and a connecting groove and a limiting groove on the connecting ring, the effect of enhancing the stability of the pipeline connection is achieved. When the two pipeline bodies are spliced ​​and the rear connecting groove corresponds to the position of the front fixing ring, the fixing column is inserted into the fixing ring and extended into the connecting groove. At this time, the limiting ring recovers after being squeezed and deformed and engages with the limiting groove to limit the position of the fixing column. At the same time, the fixing column limits the position of the connecting ring, avoiding the connection ring from slipping during use, thereby ensuring the stability of the pipeline connection.

[0014] 3. By setting a movably connected and removable fixing column inside the fixing ring, the effect of facilitating the maintenance of the pipeline is achieved. Since the fixing column can be removed from the fixing ring, when it is necessary to inspect or maintain the pipeline connection part, such as checking the wear of the sealing ring, replacing damaged parts, etc., it is only necessary to remove the fixing column and release the limit of the connecting ring, and then the pipeline connection part can be easily operated, which reduces the difficulty and cost of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0016] Figure 2 This is a half-section diagram of the utility model when two pipeline bodies are connected;

[0017] Figure 3 It is a half-section view of the pipeline main body of the utility model;

[0018] Figure 4 This is a three-dimensional diagram of the fixing column of the utility model;

[0019] Figure 5 For this utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 6 For this utility model Figure 3 Enlarged view of point B in the middle.

[0021] In the figure: 1. Pipe body; 2. Functional ring; 3. Functional slot; 4. Sealing ring; 5. Extrusion ring; 6. Slide groove; 7. Sliding block; 8. Connecting ring; 9. Connecting groove; 10. Fixing ring; 11. Fixing column; 12. Limiting groove; 13. Limiting ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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.

[0023] See also Figure 1-Figure 6An anti-static oil and gas pipeline comprises a pipeline body 1, a functional ring 2 is fixedly installed on one end of the outer wall of the pipeline body 1, a sealing ring 4 is fixedly connected to the other end of the outer wall of the pipeline body 1, a functional card slot 3 is provided on the end face surrounding the functional ring 2, the position of the functional card slot 3 corresponds to the position of the sealing ring 4, a rotatable extrusion ring 5 is movably connected inside the functional card slot 3, a connecting ring 8 is fixedly connected to the inner wall of the extrusion ring 5 at one end away from the functional ring 2, an external thread is provided on the outer wall of the pipeline body 1 at one end away from the functional ring 2, an internal thread matching the external thread on the pipeline body 1 is provided on the inner wall of the connecting ring 8, when two pipeline bodies 1 are spliced, the connecting ring 8 on one pipeline body 1 can be threadedly connected to the external thread on the outer wall of the other pipeline body 1 to achieve the effect of splicing the two pipeline bodies 1 together, and a limiting mechanism is provided on the end of the outer wall of the pipeline body 1 away from the functional ring 2. An electrostatic lead-out stud is provided on the pipeline body 1.

[0024] The sealing ring 4 is an annular elastic ring, and the outer diameter of the end of the sealing ring 4 away from the pipeline body 1 gradually decreases in the direction away from the pipeline body 1 .

[0025] The extrusion ring 5 is a circular ring block with a horizontal L-shaped cross section, and the horizontal portion of the extrusion ring 5 extends into the functional card slot 3 and is arranged toward the pipe body 1. The end of the extrusion ring 5 close to the pipe body 1 is provided with a chamfer, and the end of the horizontal portion of the extrusion ring 5 corresponds to the position of the sealing ring 4. The inner wall surface of the functional ring 2 is provided with a slide groove 6, and the outer wall surface of the extrusion ring 5 is fixedly connected with a slider 7 corresponding to the position of the slide groove 6. The slider 7 is movably connected to the inside of the slide groove 6. When the two pipe bodies 1 are spliced ​​together, the sealing ring 4 on the front pipe body 1 will enter the inside of the functional card slot 3 on the rear pipe body 1. At this time, the end of the horizontal portion of the rear extrusion ring 5 contacts the outer wall surface of the front sealing ring 4, as shown in FIG. Figure 2 shown.

[0026] The limiting mechanism includes a fixing ring 10, a fixing column 11 and a limiting ring 13. Two fixing rings 10 are symmetrically fixedly connected to both sides of the outer wall surface of the pipeline body 1 away from the end of the functional ring 2. The interiors of the two fixing rings 10 are movably connected with removable fixing columns 11. An annular limiting plate is arranged at one end of the fixing column 11, and an annular limiting ring 13 is arranged at the other end.

[0027] Two connecting grooves 9 are symmetrically provided on both sides of one end of the connecting ring 8 away from the pipe body 1 . The internal shape and size of the two connecting grooves 9 are adapted to the shape and size of the fixing column 11 , and the interiors of the two connecting grooves 9 are provided with limiting grooves 12 that cooperate with the limiting ring 13 .

[0028] The limiting ring 13 is an elastic block in the shape of a circular ring, and the cross-section of the limiting ring 13 is an arc shape with a convex middle portion. The shape and size of the limiting groove 12 are adapted to the shape and size of the limiting ring 13. When the fixing column 11 enters the interior of the connecting groove 9, the limiting ring 13 will first be squeezed and deformed. When the fixing column 11 completes entering the interior of the connecting groove 9, the limiting ring 13 will restore its deformation and be clamped together with the limiting groove 12.

[0029] Working principle: Since the connecting ring 8 and the extrusion ring 5 are fixedly connected together, when the two pipe bodies 1 are spliced, after the rear connecting ring 8 is threadedly connected to the outer wall of the front pipe body 1, the extrusion ring 5 will move toward the side away from the corresponding pipe body 1 under the drive of the corresponding connecting ring 8, and since the outer diameter of the end of the sealing ring 4 away from the corresponding pipe body 1 gradually decreases in the direction away from the pipe body 1, as the rear extrusion ring 5 continues to move, the end of the horizontal part on the rear extrusion ring 5 will continue to be squeezed and contacted with the outer wall of the front sealing ring 4, and the extrusion force will continue to increase with the movement of the extrusion ring 5, so that the sealing ring 4 can fit tightly to the connection between the two pipe bodies 1, thereby greatly improving the sealing performance and avoiding the problem of leakage of the pipe body 1 when transporting oil and gas.

[0030] After the two pipe bodies 1 are spliced ​​together and the two connecting grooves 9 on the rear connecting ring 8 correspond to the two fixing rings 10 on the front pipe body 1, the fixing column 11 can be inserted into the fixing ring 10 and then extended to the corresponding connecting groove 9. At this time, the upper limit ring 13 on the fixing column 11 can be movably engaged in the limiting groove 12, thereby limiting the position of the fixing column 11. At the same time, the fixing column 11 can limit the position of the connecting ring 8, avoiding the connection ring 8 from slipping during use, thereby causing the vertical end of the extrusion ring 5 to be not tightly squeezed with the outer wall of the sealing ring 4, resulting in leakage.

Claims

1. An anti-static oil and gas transmission pipeline, comprising a pipeline body (1), characterized in that: A functional ring (2) is fixedly mounted on one end of the outer wall of the pipe body (1), and a sealing ring (4) is fixedly connected to the other end of the outer wall of the pipe body (1). A functional slot (3) is provided on the functional ring (2), and the position of the functional slot (3) corresponds to the position of the sealing ring (4). A rotatable extrusion ring (5) is movably engaged inside the functional slot (3), and a connecting ring (8) is fixedly connected to the end of the inner wall of the extrusion ring (5) away from the pipe body (1). An external thread is provided on the end of the outer wall of the outer wall of the pipe body (1) away from the functional ring (2), and an internal thread matching the external thread on the pipe body (1) is provided on the inner wall of the connecting ring (8). A limiting mechanism is provided on the end of the outer wall of the pipe body (1) away from the functional ring (2), and a static electricity lead-out stud is provided on the pipe body (1).

2. The antistatic oil and gas pipeline according to claim 1 is characterized in that: The sealing ring (4) is a circular elastic ring, and the outer diameter of the end of the sealing ring (4) away from the pipeline body (1) gradually decreases in the direction away from the pipeline body (1).

3. The antistatic oil and gas pipeline according to claim 1 is characterized in that: The extrusion ring (5) is a circular ring block with a horizontal L-shaped cross section, and the horizontal portion of the extrusion ring (5) extends into the functional slot (3) and is arranged toward the pipeline body (1). The end of the upper horizontal portion of the extrusion ring (5) corresponds to the position of the sealing ring (4). The inner wall surface of the functional ring (2) is provided with a slide groove (6). The outer wall surface of the extrusion ring (5) is fixedly connected with a slider (7) at a position corresponding to the slide groove (6), and the slider (7) is movably engaged in the interior of the slide groove (6).

4. The antistatic oil and gas pipeline according to claim 1, characterized in that: The limiting mechanism comprises a fixing ring (10), a fixing column (11) and a limiting ring (13); two fixing rings (10) are symmetrically fixedly connected to both sides of an end of an outer wall surface of the pipeline body (1) away from the functional ring (2); a removable fixing column (11) is movably connected to the inside of the two fixing rings (10); an annular limiting plate is arranged at one end of the fixing column (11), and an annular limiting ring (13) is arranged at the other end.

5. The antistatic oil and gas pipeline according to claim 4 is characterized in that: Two connecting grooves (9) are symmetrically provided on both sides of one end of the connecting ring (8) away from the pipe body (1); the internal shape and size of the two connecting grooves (9) are adapted to the shape and size of the fixing column (11); and the interiors of the two connecting grooves (9) are provided with limiting grooves (12) matching with the limiting ring (13).

6. The antistatic oil and gas pipeline according to claim 5, characterized in that: The limiting ring (13) is a circular elastic block, and the cross section of the limiting ring (13) is an arc shape with a convex middle portion, and the shape and size of the limiting groove (12) are compatible with the shape and size of the limiting ring (13).

Images