CN210950404U - An anti-seismic device for long-distance oil and gas pipelines - Google Patents

Abstract

The utility model relates to a long oil and gas pipeline anti-seismic device, which comprises a protective sleeve sleeved on the outer side wall of a pipeline and a first anti-seismic component arranged on the inner side wall of the protective sleeve, wherein the protective sleeve extends along the length direction of the pipeline, and the two opposite ends of the protective sleeve are abutted against flange plates arranged at the two opposite ends of the pipeline; the first seismic assembly includes: the rubber ring comprises a first elastic piece and a rubber sleeve, wherein the first elastic piece is uniformly fixed on the inner side wall of the protective sleeve, the rubber sleeve is arranged at one end, far away from the protective sleeve, of the first elastic piece, the rubber sleeve extends along the length direction of the pipeline, and the inner side wall of the rubber ring is attached to the pipeline; the protective sheath lateral wall is equipped with a plurality of pairs of second and resists the shake subassembly. The utility model discloses have the effect that improves the antidetonation effect.

Description

An anti-seismic device for long-distance oil and gas pipelines

technical field

The utility model relates to the technical field of pipeline anti-seismic, in particular to a long-distance oil and gas pipeline anti-seismic device.

Background technique

At present, with the continuous development of society, gasoline and natural gas are becoming more and more popular, so the transmission of gasoline and natural gas is now a lot of attention, especially in the process of long-distance transportation, it is necessary to ensure the overall stability of oil and gas pipelines; for example When passing through some earthquake-prone areas, it is necessary to ensure the seismic strength of oil and gas pipelines to avoid rupture and leakage.

Existing, as shown in FIG. 1 , the oil and gas pipeline 1 includes a main body of the pipeline 1 and a flange 11 installed at the end of the main body of the pipeline 1. When installing the oil and gas pipeline 1, an accommodating cavity is first dug on the ground, and then the oil and gas are sequentially installed. The pipeline 1 is put into the accommodating cavity, and the flanges 11 of two adjacent oil and gas pipelines 1 are connected and fixed by bolts.

The above-mentioned prior art solutions have the following defects: the outer wall of the oil and gas pipeline is not provided with an anti-seismic structure. When an earthquake occurs, the oil and gas pipeline will easily deform or even break due to geological changes.

Utility model content

The purpose of the utility model is to provide an anti-seismic device for long-distance oil and gas pipelines, which has the effect of improving the anti-seismic effect.

The above-mentioned utility model purpose of the present utility model is achieved through the following technical solutions:

An anti-vibration device for long-distance oil and gas pipelines, comprising a protective sleeve sleeved on the outer side wall of the pipeline and a first anti-vibration component installed on the inner side wall of the protective sleeve, the protective sleeve extends along the length direction of the pipeline, and the protective sleeve is The opposite ends are in contact with the flanges arranged on the opposite ends of the pipeline; the first anti-vibration component includes: a first elastic member uniformly fixed on the inner side wall of the protective sleeve, and a first elastic member disposed at one end of the first elastic member away from the protective sleeve The rubber sleeve extends along the length direction of the pipe, the inner side wall of the rubber ring is fitted with the pipe; the outer side wall of the protective sleeve is provided with several pairs of second anti-vibration components.

By adopting the above technical solution, when the location of the pipeline is squeezed when an earthquake occurs, the elastic effect of the first elastic member and the rubber pad plays a buffering role, thereby reducing the pressure on the pipeline, thereby avoiding the occurrence of earthquakes. Deformation and fracture easily occur, thereby improving the stability and seismic resistance of the pipeline; the purpose of installing the second seismic component is to improve the seismic stability of the pipeline again and make the seismic effect better.

The utility model is further configured as follows: the second anti-vibration assembly includes: a sleeve, a limit block, a connecting rod and a second elastic member, the sleeve is inserted and extends in a direction away from the protective sleeve, and one end of the sleeve is provided with a The accommodating groove, the limit block is slidably installed in the accommodating groove, one end of the limit block is connected to the connecting rod, and the other end is connected to the second elastic member, and one end of the connecting rod away from the limit block extends out of the sleeve and is fixed to the accommodating groove. On the outer side wall of the protective sleeve, one end of the second elastic member away from the limiting block is mounted on the bottom of the accommodating groove.

By adopting the above technical solution, before installing the pipeline, the casing is partially inserted into the soil. When an earthquake occurs, the limit block slides in the sleeve, and the buffering effect of the pipeline is enhanced by the elastic action of the second elastic member. In addition, the shock resistance is improved, and the grip of the entire pipeline can be improved.

The utility model is further provided that: the notch of the accommodating groove is provided with a rubber ring for restricting the sliding of the limiting block in the sleeve, and the connecting rod passes through the rubber ring.

By adopting the above technical solution, the purpose of providing the rubber ring can not only limit the sliding of the stop block in the sleeve, but also improve the sealing performance in the sleeve, so as to prevent the groundwater from infiltrating into the sleeve, so as to avoid the elasticity of the elastic member reduce.

The utility model is further provided as follows: the inner ring of the rubber ring is provided with sliding blocks at intervals around the circumference, and the sliding blocks extend toward the thickness direction of the rubber ring; groove.

By adopting the above technical solution, the contact area between the connecting rod and the rubber ring is increased through the mutual cooperation between the slider and the chute, thereby improving the sealing performance of the rubber ring.

The utility model is further provided that: one end of the connecting rod extending out of the sleeve is provided with an external thread, and the outer side wall of the protective sleeve is provided with a threaded hole matched with the external thread thread.

By adopting the above technical solution, the second anti-vibration assembly can be detachably installed through the mutual cooperation between the external thread provided on the connecting rod and the threaded hole provided on the outer side wall of the protective sleeve, so that after an earthquake or one end of time The need to replace the second anti-vibration component is more convenient.

The utility model is further provided that: the end of the sleeve away from the connecting rod is provided with a conical block.

By adopting the above technical solution, the purpose of providing the conical block is to enable the sleeve to be inserted into the soil more easily and to improve the practicability.

The utility model is further provided that: the outer side wall of the tapered block is provided with a support bar.

By adopting the above technical solution, the purpose of providing the support bar is to increase the contact area between the sleeve and the soil, thereby improving the grip of the sleeve and making the sleeve more stable after installation.

The utility model is further set as follows: the included angle between each pair of the connecting rods is 115°-125°.

By adopting the above technical solution, the included angle of the two connecting rods is set to an angle within this range, that is, the included angle between the sleeves is also within this range. The purpose is to improve the support stability of the second anti-vibration component, and it is not easy to Causes the connecting rod and the sleeve to be crushed.

To sum up, the beneficial technical effects of the present utility model are:

1. When an earthquake occurs and the location of the pipeline is squeezed, the elastic effect of the first elastic member and the rubber pad plays a buffering role, thereby reducing the pressure on the pipeline, thereby avoiding the easy deformation of the pipeline in the event of a re-earthquake. In the case of fracture, the stability and seismic resistance of the pipeline are increased; the purpose of installing the second seismic component is to improve the seismic stability of the pipeline again and make the seismic effect better;

2. Before installing the pipeline, insert the casing part into the soil. When an earthquake occurs, the limit block slides in the sleeve, and the buffer effect of the pipeline is enhanced by the elastic action of the second elastic member, thereby improving the earthquake resistance , and can improve the overall grip of the pipeline;

3. The rubber ring can not only limit the sliding of the stop block in the sleeve, but also improve the sealing performance in the sleeve, so as to prevent the groundwater from infiltrating into the sleeve, so as to avoid reducing the elasticity of the elastic part;

4. Through the mutual cooperation between the external thread provided on the connecting rod and the threaded hole provided on the outer side wall of the protective sleeve, the second anti-vibration component can be detachably installed, so that the second anti-vibration component needs to be replaced after an earthquake or one end of time. Anti-vibration components are more convenient.

Description of drawings

Figure 1 is a schematic diagram of the structure of the pipeline.

Figure 2 is a schematic diagram of the overall structure of the present invention.

3 is a structural cross-sectional view of the first anti-vibration assembly and the second anti-vibration assembly of the present invention.

FIG. 4 is a schematic diagram of the structure between the connecting rod and the rubber ring of the present invention.

In the figure, 1, pipeline; 11, flange; 2, protective sleeve; 21, threaded hole; 3, first anti-vibration component; 31, first elastic member; 32, rubber sleeve; 4, second anti-vibration component; 41 , sleeve; 411, accommodating groove; 412, conical block; 413, strut; 42, limit block; 43, connecting rod; 431, chute; 432, external thread; 44, second elastic member; 45, Rubber ring; 451. Slider.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

As shown in FIG. 2 , it is an anti-seismic device for long-distance oil and gas pipelines disclosed by the utility model, comprising a protective cover 2 , the protective cover 2 is sleeved on the outer side wall of the pipeline 1 , and the protective cover 2 extends in the length direction of the pipeline 1 . The opposite ends of the sleeve 32 abut on the side walls of the flange 11 at the opposite ends of the pipe 1 respectively. The inner side walls of the protective sleeve 2 are evenly connected with a number of first elastic pieces 31. The first elastic pieces 31 can be rubber or springs. In this embodiment, it is a spring. One end of the first elastic member 31 away from the inner side wall of the protective cover 2 is fixedly connected with a rubber cover 32 . The extension direction of the rubber cover 32 is consistent with the extension direction of the protective cover 2 . The opposite ends of the rubber cover 32 touch The side walls of the flange 11 connected to the opposite ends of the pipe 1; the end of the rubber sleeve 32 away from the first elastic member 31 is attached to the pipe 1, so as to play a buffering and anti-vibration effect on the pipe 1.

The outer sidewall of the protective cover 2 is provided with several pairs of second anti-vibration components 4 at equal intervals, and the second anti-vibration components 4 are arranged along the extending direction of the protective cover 2 .

As shown in FIGS. 2 and 3 , the second anti-vibration assembly 4 includes a sleeve 41 , a limit block 42 , a connecting rod 43 and a second elastic member 44 . The sleeve 41 extends in a direction away from the protective cover 2 . An accommodating groove 411 is provided at one end, and the limiting block 42 is slidably disposed in the accommodating groove 411 along the extending direction of the accommodating groove 411 . The connecting rod 43 is fixed in the middle of one end of the limiting block 42 , and the second elastic member 44 is fixed in the middle of the other end. The connecting rod 43 and the sleeve 41 are located on the same line, and the end of the connecting rod 43 away from the limit block 42 extends out of the receiving groove 411; the second elastic member 44 can be a spring or rubber, in this embodiment, it is a spring, One end of the two elastic members 44 away from the limiting block 42 is fixed on the groove bottom of the accommodating groove 411;

The included angle between the connecting rods 43 in each pair of the second anti-vibration assemblies 4 is between 115° and 125°, and is 120° in this embodiment.

One end of the connecting rod 43 extending out of the accommodating groove 411 is provided with an external thread 432 , the outer side wall of the protective sleeve 2 is provided with a threaded hole 21 , and the external thread 432 of the connecting rod 43 is threadedly matched with the threaded hole 21 .

The end of the sleeve 41 away from the protective shell is provided with a conical block 412 , and the outer sidewall of the conical block 412 is evenly distributed with struts 413 , which are inclined relative to the surface of the conical block 412 to improve the grip.

As shown in FIGS. 3 and 4 , the notch of the accommodating groove 411 is provided with a rubber ring 45 , the outer ring of the rubber ring 45 is fixed on the inner side wall of the accommodating groove 411 , the connecting rod 43 passes through the inner ring of the rubber ring 45 , and the rubber ring The inner ring of 45 is provided with sliding blocks 451 at intervals along the circumferential direction, and the extension direction of the sliding block 451 is consistent with the sliding direction of the limit block 42; The sliding directions of the blocks 42 are the same, and the sliding blocks 451 are slidably arranged in the sliding grooves 431 to improve the sealing performance of the sleeve 41 .

The implementation principle of this embodiment is as follows: before the flange 11 is installed on the pipeline 1, the protective sleeve 2 provided with the first anti-vibration component 3 is firstly sleeved on the pipeline 1, and then the flange 11 is installed, so that the protective sleeve The opposite ends of 2 and the opposite ends of the rubber sleeve 32 are in contact with the side wall of the flange 11; then the end of the connecting rod 43 provided with the external thread 432 is screwed into the threaded hole provided on the outer side wall of the protective sleeve 2 21, so as to install the second anti-vibration assembly 4; when connecting the two pipes 1, first insert the end of the sleeve 41 with the tapered block 412 into the soil, and then align the flange between the two pipes 1 11 is connected by bolts; so that when an earthquake occurs, not only can the pipeline 1 be buffered by the elastic force of the first elastic member 31 and the elasticity of the rubber ring 45, but also can be further carried out by the elastic force of the second elastic member 44. buffer, so as to achieve good shock resistance.

The examples of this specific embodiment are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention are not It should be covered within the protection scope of the present invention.

Claims (8)

1. The utility model provides a long oil and gas pipeline antidetonation device which characterized in that: the anti-seismic pipeline protection device comprises a protection sleeve (2) sleeved on the outer side wall of a pipeline (1) and a first anti-seismic assembly (3) installed on the inner side wall of the protection sleeve (2), wherein the protection sleeve (2) extends along the length direction of the pipeline (1), and two opposite ends of the protection sleeve (2) are abutted to flange plates (11) arranged at two opposite ends of the pipeline (1); the first anti-seismic assembly (3) comprises: the pipeline protection device comprises a first elastic piece (31) uniformly fixed on the inner side wall of a protection sleeve (2) and a rubber sleeve (32) arranged at one end, far away from the protection sleeve (2), of the first elastic piece (31), wherein the rubber sleeve (32) extends along the length direction of a pipeline (1), and the inner side wall of the rubber sleeve (32) is attached to the pipeline (1); the outer side wall of the protective sleeve (2) is provided with a plurality of pairs of second anti-seismic assemblies (4).

2. A long oil and gas pipeline seismic resistant installation according to claim 1, characterized in that said second seismic resistant assembly (4) comprises: sleeve (41), stopper (42), connecting rod (43) and second elastic component (44), sleeve (41) are towards the direction extension of keeping away from protective sheath (2), holding tank (411) that sleeve (41) one end was equipped with, stopper (42) slidable type is installed in holding tank (411), connecting rod (43), second elastic component (44) are connected to the one end of stopper (42), the other end, the lateral wall that sleeve (41) were fixed in protective sheath (2) is stretched out to the one end that stopper (42) were kept away from in connecting rod (43), the one end that stopper (42) were kept away from in second elastic component (44) is installed in the tank bottom of holding tank (411).

3. The anti-seismic device for the long oil and gas pipeline as claimed in claim 2, wherein the notch of the accommodating groove (411) is provided with a rubber ring (45) for limiting the limiting block (42) to slide in the sleeve (41), and the connecting rod (43) penetrates through the rubber ring (45).

4. The long oil and gas pipeline anti-seismic device according to the claim 3, characterized in that the inner ring of the rubber ring (45) is provided with sliding blocks (451) at intervals around the circumferential direction, and the sliding blocks (451) extend towards the thickness direction of the rubber ring (45); the outer side wall of the connecting rod (43) is provided with a sliding groove (431) matched with the sliding block (451).

5. The long oil and gas pipeline anti-seismic device according to claim 4, characterized in that one end of the connecting rod (43) extending out of the sleeve (41) is provided with an external thread (432), and the outer side wall of the protective sleeve (2) is provided with a threaded hole (21) in threaded fit with the external thread (432).

6. An anti-seismic device for long oil and gas pipelines according to claim 5, characterized in that the end of the sleeve (41) away from the connecting rod (43) is provided with a conical block (412).

7. An anti-seismic device for long oil and gas pipelines according to claim 6, characterized in that the outer side wall of the conical block (412) is provided with a branch (413).

8. An anti-seismic device for long oil and gas pipelines according to claim 7, characterized in that the included angle between each pair of connecting rods (43) is 115-125 °.

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