Petroleum and natural gas pipeline sectional type anti-seismic and shock-absorbing connecting structure

Abstract

The utility model discloses a segmented anti-seismic and shock-absorbing connecting structure for petroleum and natural gas pipelines. The segmented anti-seismic and shock-absorbing connecting structure comprises a mounting frame, an anti-seismic gasket, an adjusting groove and a limiting mechanism. A limiting frame and a first screw rod are arranged on the mounting frame and are used for clamping a pipeline; the anti-seismic gasket is connected with the mounting groove in a clamped mode through the mounting piece on the side edge, and the limiting mechanism is used for achieving rapid mounting and locking. Adjusting connecting rods and U-shaped positioning pieces are arranged in the adjusting grooves, and transverse position fine adjustment is supported so as to adapt to different segmented pipelines. The adjusting base and the mounting base are matched through nested sliding and limiting insertion pieces, multi-stage height adjustment is achieved, and the complex terrain requirement is met. The structure solves the problems that a traditional anti-seismic component is difficult to replace, unstable in installation and poor in terrain adaptability, the stability and maintenance efficiency of pipeline connection are remarkably improved, and the structure is suitable for engineering application of oil and gas long-distance pipelines.

Description

Technical Field

[0001] This utility model relates to the field of pipeline vibration reduction technology, and in particular to a segmented anti-seismic and vibration-damping connection structure for oil and gas pipelines. Background Technology

[0002] Natural gas pipelines are pipelines that transport natural gas (including associated gas from oil fields) from extraction sites or processing plants to urban gas distribution centers or industrial users; they are also called gas transmission pipelines. Using natural gas pipelines to transport natural gas is the primary method for transporting large quantities of natural gas overland. During natural gas transportation, multiple pipeline sections are connected to form a complete transmission channel. When connecting pipeline sections, it is necessary to ensure the stability of the connection between the two sections.

[0003] When connecting existing pipelines, uneven terrain can easily cause height differences after installation, leading to loosening of connections after long-term operation. Seismic components are prone to wear and difficult to replace, and replacement can easily cause instability in the installation. The traditional seismic structure is not flexible in its position adjustment and cannot adapt to the installation requirements of different pipeline sections. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines. The specific technical solution is as follows:

[0005] A segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines includes a mounting frame, a limiting frame, seismic pads, mounting plates, a first screw, a limiting mechanism, an adjusting groove, an adjusting connecting rod, a positioning component, a second bolt, an adjusting base, a mounting base, a limiting insert, an insert hole, and a positioning insert.

[0006] The mounting bracket is U-shaped; the limiting bracket is mounted on the mounting bracket, and a first nut is mounted on the side of the limiting bracket. The first screw passes through the first nut and is threadedly connected to the first nut for clamping and fixing the pipe.

[0007] The mounting base is provided with a docking seat, which is nested and slidably connected to the adjusting base; the mounting bracket is disposed on the adjusting base.

[0008] The lower end of the adjustment base is provided with a positioning hole, and a limiting insert is inserted into the positioning hole. The limiting insert is provided with an insert hole.

[0009] The docking seat has multiple sets of docking holes, which correspond to the positioning holes. The installation height can be adjusted in stages by the cooperation of the limiting insert and the positioning insert.

[0010] The lower end of the inner surface of the mounting bracket is pre-set with a mounting groove that matches the mounting piece; the mounting piece is L-shaped, and the long end of the mounting piece is inserted into the mounting groove, while the short end of the mounting piece is connected to the outer surface of the anti-vibration pad; the anti-vibration pad is fixed to the mounting bracket by the engagement of the mounting piece and the mounting groove, and the outer surface of the anti-vibration pad is in contact with the inner surface of the mounting bracket.

[0011] The mounting plate has a limiting hole on its short end sidewall;

[0012] The mounting bracket has adjustment grooves on both sides of its lower end, and an adjustment rod is installed in the adjustment groove. Positioning elements are distributed on both sides of the adjustment groove of the adjustment rod. The positioning elements are U-shaped and are engaged with the adjustment rod. The positioning elements have mounting holes on both sides.

[0013] A second nut is provided at the mounting hole on one side of the positioning component, and a second bolt extends from the mounting hole on the other side and is threadedly connected to the second nut for locking, which is used to realize the lateral position adjustment of the mounting bracket.

[0014] The limiting mechanism is installed in the limiting hole corresponding to the mounting plate and is used to limit and fix the anti-vibration pad.

[0015] A preferred embodiment of the segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines is that the limiting mechanism includes a positioning seat, a positioning rod, a pull handle, a limiting ring, and a spring.

[0016] One end of the positioning rod has a pull handle, and the other end passes through the positioning seat. A limiting ring is set on the positioning rod, dividing it into a spring mounting area and a connecting area. The spring is connected to the positioning rod spring mounting area between the limiting ring and the positioning seat, forming a telescopic structure. The connecting area of ​​the positioning rod is inserted into the limiting hole, so that the limiting mechanism is correspondingly connected to the limiting hole.

[0017] The positioning rod is pushed by a spring to insert into the limiting hole, so as to realize the quick installation and locking of the anti-vibration pad.

[0018] In a preferred embodiment of the segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines, the positioning rod and the positioning seat are slidably connected, and the extension and retraction direction of the spring is consistent with the movement direction of the positioning rod.

[0019] In a preferred embodiment of the segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines, the sliding direction of the docking seat and the adjusting base is perpendicular to the pipeline extension direction, and the docking holes are evenly distributed along the sliding direction.

[0020] In a preferred embodiment of the segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines, the limiting insert and the positioning insert cooperate to form a double limiting structure to prevent relative displacement between the adjusting base and the mounting base.

[0021] The preferred embodiment of the segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines is to install a rubber protective gasket between the first screw and the pipeline.

[0022] The working principle of a segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines is as follows: First, the entire equipment is installed. During installation, the mounting base is pre-cast and fixed. Then, it is flexibly adjusted according to the terrain elevation. The base is slidably adjusted to the target height via the docking seat. Limiting inserts are inserted into the docking holes and positioning holes, and double limiting is achieved by inserting positioning inserts into the insert holes. Pulling the handle of the limiting mechanism compresses the spring, causing the positioning rod to exit the limiting hole. The mounting plate of the seismic pad is inserted into the mounting groove. The handle is released, and the spring pushes the positioning rod into the limiting hole to complete the fixation. After installation, the natural gas pipeline can be installed through this device. The two ends of the pipeline are docked and installed. Then, the adjusting rod is taken out and inserted into the adjusting groove. The positioning mounting bracket is taken out and positioned at both ends of the adjusting rod. The second bolt is tightened to achieve positioning and limiting. The pipeline is placed in the limiting bracket of the mounting bracket. The first screw is rotated to clamp the pipeline, and a rubber protective pad is installed between the pipeline and the screw. Finally, the adjusting rod is slid along the adjusting groove to adjust the positioning bracket to the required position, and the second bolt is tightened to fix the mounting bracket. Vibrations generated during pipeline operation are effectively dispersed by anti-vibration pads, maintaining stable pipeline operation. Regularly inspect the wear of the anti-vibration pads and replace them according to the steps described above; adjust the height of the base to accommodate changes in terrain.

[0023] Beneficial effects

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] This utility model simplifies the replacement process by setting an installation groove and an anti-vibration pad installation piece. The interlocking design of the installation groove and the installation piece, combined with a spring limiting mechanism, allows for flexible replacement of the anti-vibration pads, ensuring the stability of pipeline transportation. At the same time, the docking between the upper limit hole of the installation piece and the positioning rod can effectively limit the installation of the anti-vibration pad after installation, thus ensuring the stable installation of the anti-vibration pad. The anti-vibration pads provide shock absorption and vibration reduction for the transported natural gas pipeline.

[0026] The adjusting groove and adjusting rod, together with the "U"-shaped positioning element, allow for lateral adjustment of the mounting bracket's position. This enables quick and flexible adjustment of the positioning element's fixed position based on the installation location. The mounting bracket is clamped by four sets of positioning elements, achieving rapid positioning. This adapts to the needs of different pipeline sections.

[0027] The sliding connection between the adjustable base and the mounting base, along with the limit insert design, allows for quick adjustment of the installation height to adapt to complex terrain. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a segmented seismic-resistant and vibration-damping connection structure for an oil and gas pipeline and its installation structure.

[0029] Figure 2 This is a structural schematic diagram of a segmented seismic-resistant and vibration-damping connection structure for an oil and gas pipeline.

[0030] Figure 3 A schematic diagram of a single mounting bracket structure for connection;

[0031] Figure 4 A schematic diagram of the installation structure of the positioning component and the adjusting rod;

[0032] Figure 5 This is a schematic diagram of the mounting structure of the mounting base and the adjustment base;

[0033] Figure 6 This is an exploded view of the mounting bracket and anti-seismic pads;

[0034] Figure 7 This is a schematic diagram of the limiting mechanism.

[0035] In the diagram: 1. Mounting bracket; 2. Limiting bracket; 3. Anti-vibration pad; 4. Mounting piece; 5. Limiting hole; 6. Mounting groove; 7. First nut; 8. First screw; 9. Limiting mechanism; 91. Positioning seat; 92. Positioning rod; 93. Pull handle; 94. Limiting ring; 95. Spring; 10. Adjusting groove; 11. Adjusting connecting rod; 12. Positioning component; 13. Second bolt; 14. Second nut; 15. Adjusting base; 16. Positioning hole; 17. Mounting base; 171. Connecting seat; 172. Connecting hole; 18. Limiting insert; 19. Insert hole; 20. Positioning insert. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0037] like Figure 1-7 As shown, a segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines includes an installation frame 1, a limiting frame 2, a seismic pad 3, an installation plate 4, a first screw 8, a limiting mechanism 9, an adjusting groove 10, an adjusting connecting rod 11, a positioning component 12, a second bolt 13, an adjusting base 15, an installation base 17, a limiting insert 18, an insert hole, and a positioning insert 20.

[0038] The mounting bracket 1 is U-shaped; the limiting bracket 2 is mounted on the mounting bracket 1, and a first nut 7 is mounted on the side of the limiting bracket 2. The first screw 8 passes through the first nut 7 and is threadedly connected to the first nut 7 for clamping and fixing the pipe.

[0039] The mounting base 17 is provided with a docking seat 171, which is nested and slidably connected to the adjusting base 15; the mounting bracket 1 is disposed on the adjusting base 15.

[0040] The lower end of the adjustment base 15 is provided with a positioning hole 16, and a limiting insert 18 is inserted into the positioning hole 16. The limiting insert 18 is provided with an insert hole 19.

[0041] The docking seat 171 has multiple sets of docking holes 172, which correspond to the positioning holes 16. The installation height can be adjusted in stages by the cooperation of the limiting insert 18 and the positioning insert 20.

[0042] The lower end of the inner surface of the mounting bracket 1 is pre-set with a mounting groove 6 that matches the mounting piece; the mounting piece 4 is L-shaped, and the long end of the mounting piece 4 is inserted into the mounting groove 6, while the short end of the mounting piece 4 is connected to the outer surface of the anti-vibration pad 3; the anti-vibration pad 3 is fixed to the mounting bracket 1 by the engagement of the mounting piece 4 and the mounting groove 6, and the outer surface of the anti-vibration pad 3 is in contact with the inner surface of the mounting bracket 1.

[0043] A limiting hole 5 is provided on the short end sidewall of the mounting piece 4;

[0044] The mounting bracket 1 has adjustment grooves 10 on both sides of its lower end. An adjustment rod 11 is provided in the adjustment groove 10. Positioning members 12 are distributed on both sides of the adjustment groove 10 of the adjustment rod 11. The positioning member 12 has a U-shaped structure and is engaged with the adjustment rod 11. The positioning member 12 has mounting holes on both sides.

[0045] A second nut 14 is provided at the mounting hole on one side of the positioning member 12, and a second bolt 13 extends from the mounting hole on the other side and is threadedly connected to the second nut 14 for locking, so as to realize the lateral position adjustment of the mounting bracket 1.

[0046] The limiting mechanism 9 is installed in the limiting hole 5 corresponding to the mounting plate 4, and is used to limit and fix the anti-vibration pad 3.

[0047] The limiting mechanism 9 includes a positioning seat 91, a positioning rod 92, a pull handle 93, a limiting ring 94, and a spring 95;

[0048] The positioning rod 92 has a pull handle 93 at one end and passes through the positioning seat 91 at the other end. A limiting ring 94 is set on the positioning rod 92, dividing it into a spring mounting area and a connecting area. The spring 95 is connected to the spring mounting area of ​​the positioning rod 92 between the limiting ring 94 and the positioning seat 91, forming a telescopic structure. The connecting area of ​​the positioning rod 92 is inserted into the limiting hole 5, so that the limiting mechanism is correspondingly connected to the limiting hole.

[0049] The positioning rod 92 is pushed by spring 95 into the limiting hole 5 to achieve quick installation and locking of the anti-vibration pad 3.

[0050] The positioning rod 92 and the positioning seat 91 are slidably connected, and the extension and retraction direction of the spring 95 is consistent with the movement direction of the positioning rod 92.

[0051] The sliding direction of the docking seat 171 and the adjusting base 15 is perpendicular to the pipe extension direction, and the docking holes 172 are evenly distributed along the sliding direction.

[0052] The limiting insert 18 and the positioning insert 20 cooperate to form a double limiting structure, which is used to prevent relative displacement between the adjusting base 15 and the mounting base 17.

[0053] Example 1:

[0054] The application scenario involves an oil pipeline project that requires connecting multiple pipeline sections in a flat area, necessitating a stable seismic structure that is easy to maintain.

[0055] Implementation steps:

[0056] The mounting base 17 is cast and fixed to the foundation to ensure it is level; the adjusting base 15 slides and nests with the mounting base 17 through the docking seat 171, aligning the positioning hole 16 and the docking hole 172, inserting the limiting insert 18 and adding the positioning insert 20 to fix the adjusting base 15.

[0057] Pull the handle 93 of the limiting mechanism 9 to make the positioning rod 92 exit the limiting hole 5; insert the mounting piece 4 of the anti-vibration pad 3 into the mounting slot 6 of the mounting bracket 1, release the handle 93, and the spring 95 pushes the positioning rod 92 into the limiting hole 5 to complete the locking of the anti-vibration pad 3.

[0058] Place the pipe inside the limiting frame 2 of the mounting bracket 1, rotate the first screw 8, and clamp the pipe with the first nut 7. Install a rubber protective gasket between the pipe and the first screw.

[0059] Slide the adjusting rod 11 along the adjusting groove 10, adjust the "U" shaped positioning piece 12 to the pipe docking position, and tighten the second bolt 13 to fix the mounting bracket 1.

[0060] Example 2:

[0061] The application scenario involves a natural gas pipeline that needs to traverse hilly terrain, and the pipeline installation height needs to be flexibly adjusted according to the terrain.

[0062] Implementation steps:

[0063] In areas where the slope changes, install base 17 by pouring concrete to ensure it fits in contact with the ground.

[0064] Based on the terrain elevation difference, slide and adjust the base 15 and the docking seat 171 to align the docking holes 172 and positioning holes 16 at different heights.

[0065] Insert the limiting insert 18 and lock it with the positioning insert 20 to achieve stepped height adjustment of the base 15.

[0066] Complete the installation of the anti-seismic pad 3 and the fixing of the pipes according to the steps in Example 1.

[0067] For inclined sections of the pipeline, the horizontal angle of the mounting bracket 1 is adjusted by adjusting the groove 10 to ensure a smooth connection of the pipeline.

[0068] Regularly check the wear of the anti-vibration pads 3 and replace them quickly using the limit mechanism 9.

[0069] If the foundation settlement causes a change in height, readjust the mating hole 172 between the adjusting base 15 and the mounting base 17, and replace the limiting insert 18.

[0070] The above embodiments demonstrate the practical application of this invention in both flat and complex terrains. The anti-vibration pad 3 is quickly installed via a snap-fit ​​structure, and the positioning rod 92 and spring 95 ensure its stability. The adjusting rod 11 and positioning component 12 enable fine-tuning of the pipe's lateral position, ensuring docking accuracy. The adjusting base 15 does not require frequent height adjustments, and maintenance only requires replacing worn anti-vibration pads 3.

[0071] The working principle of a segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines is as follows: First, the entire equipment is installed. During installation, the mounting base 17 is pre-cast and fixed. Then, it is flexibly adjusted according to the terrain elevation. The base 15 is slidably adjusted to the target height by the docking seat 171. The limiting insert 18 is inserted into the docking hole 172 and the positioning hole 16, and the positioning insert 20 is inserted into the insert hole 19 to achieve double limiting. Pulling the handle 93 of the limiting mechanism 9 compresses the spring 95, causing the positioning rod 92 to exit the limiting hole 5. The mounting plate 4 of the seismic pad 3 is inserted into the mounting groove 6. The handle 93 is released, and the spring 95... Push the positioning rod 92 into the limiting hole 5 to complete the fixation; after installation, natural gas pipelines can be installed through this device. Connect the two ends of the pipelines together, then take out the adjusting rod 11 and insert it into the adjusting groove 10. Take out the positioning piece 12 and position the mounting bracket 1 at both ends of the adjusting rod 11. Tighten the second bolt 13 to achieve positioning and limiting; place the pipeline in the limiting bracket 2 of the mounting bracket 1, rotate the first screw 8 to clamp the pipeline, and install a rubber protective pad between the pipeline and the screw; finally, slide the adjusting rod 11 along the adjusting groove 10, adjust the positioning piece 12 to the required position, and tighten the second bolt 13 to fix the mounting bracket 1. Vibrations generated during pipeline operation are reasonably distributed by the anti-vibration pads 3 to maintain the stable operation of the pipeline. Regularly check the wear of the anti-vibration pads 3 and replace them according to the above steps; adjust the height by adjusting the base 15 to cope with terrain changes.

[0072] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines, characterized in that: Includes mounting bracket (1), limit bracket (2), anti-vibration pad (3), mounting plate (4), first screw (8), limit mechanism (9), adjustment groove (10), adjustment connecting rod (11), positioning component (12), second bolt (13), adjustment base (15), mounting base (17), limit insert (18), insert hole (19), positioning insert (20); The mounting bracket (1) is U-shaped; the limiting bracket (2) is mounted on the mounting bracket (1), and a first nut (7) is mounted on the side of the limiting bracket (2). The first screw (8) is threaded through the first nut (7) and connected to the first nut (7) for clamping and fixing the pipe. The mounting base (17) is provided with a docking seat (171), which is nested and slidably connected to the adjusting base (15); the mounting bracket (1) is set on the adjusting base (15); The lower end of the adjustment base (15) is provided with a positioning hole (16), and a limiting insert (18) is inserted into the positioning hole (16). The limiting insert (18) is provided with an insert hole (19). The docking seat (171) has multiple sets of docking holes (172), which correspond to the positioning holes (16). The installation height can be adjusted in stages by the cooperation of the limiting insert (18) and the positioning insert (20). The lower end of the inner surface of the mounting bracket (1) is pre-set with a mounting groove (6) that matches the mounting piece; the mounting piece (4) is L-shaped, and the long end of the mounting piece (4) is inserted into the mounting groove (6), and the short end of the mounting piece (4) is connected to the outer surface of the anti-seismic pad (3); the anti-seismic pad (3) is fixed on the mounting bracket (1) by the engagement of the mounting piece (4) and the mounting groove (6), and the outer surface of the anti-seismic pad (3) is in contact with the inner surface of the mounting bracket (1); The mounting plate (4) has a limiting hole (5) on its short end sidewall. The mounting bracket (1) has adjustment grooves (10) on both sides of its lower end. An adjustment rod (11) is provided in the adjustment groove (10). Positioning parts (12) are distributed on both sides of the adjustment groove (10) of the adjustment rod (11). The positioning parts (12) are U-shaped and are engaged with the adjustment rod (11). The positioning parts (12) have mounting holes on both sides. The positioning component (12) has a second nut (14) at the mounting hole on one side, and a second bolt (13) extends from the mounting hole on the other side and is threadedly connected to the second nut (14) for locking, so as to realize the lateral position adjustment of the mounting bracket (1); The limiting mechanism (9) is set in the limiting hole (5) corresponding to the mounting plate (4) and is used to limit and fix the anti-vibration pad (3).

2. The segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines according to claim 1, characterized in that: The limiting mechanism (9) includes a positioning seat (91), a positioning rod (92), a pull handle (93), a limiting ring (94), and a spring (95). The positioning rod (92) has a pull handle (93) at one end and a positioning seat (91) at the other end. A limiting ring (94) is set on the positioning rod (92), dividing it into a spring mounting area and a connecting area. The spring (95) is connected to the spring mounting area of ​​the positioning rod (92) between the limiting ring (94) and the positioning seat (91), forming a telescopic structure. The connecting area of ​​the positioning rod (92) is inserted into the limiting hole (5), so that the limiting mechanism is connected to the limiting hole. The positioning rod (92) is pushed by the spring (95) to insert into the limiting hole (5), so as to realize the quick installation and locking of the anti-vibration pad (3).

3. The segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines according to claim 2, characterized in that: The positioning rod (92) and the positioning seat (91) are slidably connected, and the extension and retraction direction of the spring (95) is consistent with the movement direction of the positioning rod (92).

4. The segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines according to claim 1, characterized in that: The sliding direction of the docking seat (171) and the adjusting base (15) is perpendicular to the pipe extension direction, and the docking holes (172) are evenly distributed along the sliding direction.

5. The segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines according to claim 1, characterized in that: The limiting insert (18) and the positioning insert (20) cooperate to form a double limiting structure to prevent relative displacement between the adjusting base (15) and the mounting base (17).

6. The segmented seismic-resistant and vibration-damping connection structure for oil and gas pipelines according to claim 1, characterized in that: A rubber protective gasket is installed between the first screw (8) and the pipe.

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