Device for testing external force damage resistance of pipeline

Abstract

The invention belongs to the technical field of pipeline testing, and discloses a pipeline external force damage resistance testing device which comprises a loading structure and a driving structure, the loading structure comprises a first loading bin and a second loading bin, a to-be-tested pipeline is arranged in the first loading bin, and the two ends of the pipeline extend out of the first loading bin; the second loading bin is arranged above the first loading bin and abuts against the outer wall of the pipeline, the first loading bin and the second loading bin are both filled with filler, the filler can be different types of hard materials such as gravel, gravel and pebbles, and the purpose of simulating different geological environments is achieved. The driving structure is connected with the pipeline, and under the driving of the driving structure, the pipeline can move in a reciprocating mode in the axis direction of the pipeline so as to comprehensively test the resistance of the pipeline to external force damage such as abrasion, scratching and stripping possibly occurring in the actual environment.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline testing, and particularly to a testing device for the performance of a pipeline against external force damage. Background Art

[0002] The results of corrosion investigations on oil and gas pipelines show that the external anti-corrosion layers of pipelines in special pipe sections such as pipelines in mountainous rocky sections and horizontally directional drilled pipelines are prone to external force damage, especially in harsh geological environments such as hard bedrock and gravel. Different types of external force damage can cause damage, perforation or even peeling of the pipeline anti-corrosion layer, exposing the pipe body metal directly to the environment and causing corrosion.

[0003] Currently, relevant technical standards stipulate the testing methods for the performance of anti-external force damage such as scratch resistance, wear resistance, and adhesion of the anti-corrosion layer. However, the testing methods and testing devices provided in these standards only target a specific performance index, and the relevant testing methods are all laboratory tests. There are differences between the experimental conditions and the actual complex field environment, and it is impossible to comprehensively test the performance of the pipeline against external force damage in a complex geological environment. Summary of the Invention

[0004] The purpose of the present invention is to provide a testing device for the performance of a pipeline against external force damage, which can simulate the actual complex field environment and comprehensively test the performance of the pipeline against external force damage.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] Provide a testing device for the performance of a pipeline against external force damage, including:

[0007] A loading structure, including a first loading bin and a second loading bin. The pipeline to be tested is placed in the first loading bin, and both ends of the pipeline extend out of the first loading bin; the second loading bin is placed above the first loading bin and abuts against the outer wall of the pipeline; fillers are installed in both the first loading bin and the second loading bin.

[0008] A driving structure, connected to the pipeline. Under the drive of the driving structure, the pipeline can reciprocate along its own axis direction.

[0009] As an optional scheme of the testing device for the performance of a pipeline against external force damage, it further includes a support structure, which includes a first support frame and a second support frame. Along the axis direction of the pipeline, the first support frame and the second support frame are respectively arranged at both ends of the first loading bin.

[0010] As an optional scheme of the testing device for the performance of a pipeline against external force damage, the driving structure includes:

[0011] A driving mechanism, arranged at an interval from the loading structure;

[0012] A connecting piece, the two ends of the connecting piece are correspondingly connected to the two ends of the pipeline, and are connected to the driving mechanism;

[0013] A first pulley assembly, arranged on the first support frame;

[0014] A second pulley assembly, arranged on the second support frame; the connecting piece is slidably abutted against the first pulley assembly and the second pulley assembly in sequence;

[0015] Driven by the driving mechanism, the two ends of the connecting piece reciprocate along the axial direction of the pipeline to drive the pipeline to reciprocate.

[0016] As an alternative scheme of the pipeline anti-external force damage performance testing device, clamping pieces are arranged at both ends of the connecting piece, and the two clamping pieces correspondingly clamp the two ends of the pipeline.

[0017] As an alternative scheme of the pipeline anti-external force damage performance testing device, the first pulley assembly includes a first pulley and a second pulley, and the first pulley and the second pulley are arranged at intervals in the vertical direction at one end of the first support frame away from the first loading bin;

[0018] The second pulley assembly includes a third pulley and a fourth pulley, and the third pulley and the fourth pulley are arranged at intervals in the vertical direction at one end of the second support frame away from the first loading bin;

[0019] The connecting piece between the second pulley and the fourth pulley is arranged at intervals on the bottom side of the pipeline.

[0020] As an alternative scheme of the pipeline anti-external force damage performance testing device, an avoidance groove is arranged on the bottom side of the first loading bin, and the avoidance groove is used to allow the connecting piece to pass through.

[0021] As an alternative scheme of the pipeline anti-external force damage performance testing device, an anti-slip structure is arranged on the bottom side of the first support frame and / or the second support frame.

[0022] As an alternative scheme of the pipeline anti-external force damage performance testing device, the first loading bin includes:

[0023] A bottom plate;

[0024] Two first plates, arranged at intervals in the axial direction of the pipeline at both ends of the bottom plate, and a first arc-shaped groove is arranged on each first plate, and the pipeline abuts against the first arc-shaped groove;

[0025] Two second plates, arranged at intervals in the radial direction of the pipeline at both ends of the bottom plate, and the second plates are connected between the two first plates.

[0026] As an alternative solution for the pipeline external force damage resistance performance testing device, the second loading bin includes:

[0027] Two third plates, arranged at intervals along the axial direction of the pipeline, and each third plate is provided with a second arc-shaped groove, and the pipeline abuts against the inside of the second arc-shaped groove;

[0028] Two fourth plates, arranged at intervals along the radial direction of the pipeline, and the fourth plates are connected between the two third plates;

[0029] A plurality of fixing rods, all extending along the radial direction of the pipeline, and each fixing rod is arranged between the fourth plate and the first loading bin.

[0030] As an alternative solution for the pipeline external force damage resistance performance testing device, the first loading bin is provided with a plurality of fixing grooves, and the plurality of fixing rods are respectively clamped in the plurality of fixing grooves.

[0031] Advantages of the present invention:

[0032] The present invention provides a pipeline external force damage resistance performance testing device. The pipeline to be tested is placed in the first loading bin, and both ends of the pipeline extend out of the first loading bin; the second loading bin is placed above the first loading bin and abuts against the outer wall of the pipeline. There is filler in both the first loading bin and the second loading bin, and the filler can be different types of hard materials such as sand, gravel, and pebbles to achieve the purpose of simulating different geological environments. The driving structure is connected to the pipeline, and under the drive of the driving structure, the pipeline can reciprocate along its own axial direction to comprehensively test the resistance of the pipeline to external force damages such as abrasion, scratch, and peeling that may occur in the actual environment. Description of the Drawings

[0033] Figure 1 is the overall structural schematic diagram of the pipeline external force damage resistance performance testing device provided by the embodiment of the specific implementation manner of the present invention;

[0034] Figure 2 is the structural schematic diagram of the loading structure provided by the embodiment of the specific implementation manner of the present invention;

[0035] Figure 3 is the structural schematic diagram of the first support frame provided by the embodiment of the specific implementation manner of the present invention;

[0036] Figure 4 is the structural schematic diagram of the second support frame provided by the embodiment of the specific implementation manner of the present invention.

[0037] In the figure:

[0038] 100, pipeline;

[0039] 1. Loading structure;

[0040] 11. First loading bin; 110. Avoidance groove; 111. Bottom plate; 112. First plate; 113. Second plate;

[0041] 12. Second loading bin; 121. Third plate; 122. Fourth plate; 123. Fixed rod;

[0042] 2. Driving structure;

[0043] 21. Driving mechanism;

[0044] 22. Connecting piece; 221. Clamping piece;

[0045] 23. First pulley assembly; 231. First pulley; 232. Second pulley;

[0046] 24. Second pulley assembly; 241. Third pulley; 242. Fourth pulley;

[0047] 3. Support structure;

[0048] 31. First support frame; 32. Second support frame. Detailed implementation manner

[0049] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the convenience of description, only parts related to the present invention are shown in the accompanying drawings, rather than all structures.

[0050] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0051] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0052] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right" and the like are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0053] The technical solution of the present invention will be further described below with reference to the drawings and through specific embodiments.

[0054] As Figures 1 to 4 shown, this embodiment provides a device for testing the anti-external force damage performance of a pipeline, which is used to comprehensively test the anti-external force damage performance of the pipeline 100 in a complex geological environment. The device includes a loading structure 1 and a driving structure 2. The loading structure 1 includes a first loading bin 11 and a second loading bin 12. The pipeline 100 to be tested is placed in the first loading bin 11, and both ends of the pipeline 100 extend out of the first loading bin 11. The second loading bin 12 is placed above the first loading bin 11 and abuts against the outer wall of the pipeline 100. Fillers are installed in both the first loading bin 11 and the second loading bin 12. The fillers can be different types of hard materials such as sand, gravel, and pebbles to achieve the purpose of simulating different geological environments. The driving structure 2 is connected to the pipeline 100. Under the drive of the driving structure 2, the pipeline 100 can reciprocally move along its own axis direction to comprehensively test the resistance ability of the pipeline 100 to external force damages such as abrasion, scratch, and peeling that may occur in the actual environment.

[0055] Specifically, the fillers installed in the first loading bin 11 and the second loading bin 12 can also be special sharp-cornered hard materials.

[0056] Optionally, the first loading bin 11 includes a bottom plate 111, two first plates 112 and two second plates 113. The two first plates 112 are arranged at both ends of the bottom plate 111 at intervals along the axial direction of the pipeline 100. Each first plate 112 is provided with a first arc-shaped groove, and the pipeline 100 abuts against the inside of the first arc-shaped groove. The two second plates 113 are arranged at both ends of the bottom plate 111 at intervals along the radial direction of the pipeline 100, and the second plates 113 are connected between the two first plates 112. The setting of the first arc-shaped groove can, on the one hand, improve the stability of the pipeline 100, and on the other hand, ensure the full contact between the outer wall of the pipeline 100 and the filler in the first loading bin 11, ensuring the accuracy of the wear test.

[0057] Optionally, the second loading bin 12 includes two third plates 121 and two fourth plates 122. The two third plates 121 are arranged at intervals along the axial direction of the pipeline 100. Each third plate 121 is provided with a second arc-shaped groove, and the pipeline 100 abuts against the inside of the second arc-shaped groove. While ensuring the stability of the second loading bin 12, it can also ensure the full contact between the filler in the second loading bin 12 and the outer wall of the pipeline 100. The two fourth plates 122 are arranged at intervals along the radial direction of the pipeline 100, and the fourth plates 122 are connected between the two third plates 121. A plurality of fixing rods 123 all extend along the radial direction of the pipeline 100, and each fixing rod 123 is arranged between the fourth plate 122 and the first loading bin 11 to improve the stability of the second loading bin 12 placed on the first loading bin 11.

[0058] Specifically, in this embodiment, there are four fixing rods 123. In other embodiments, the number of fixing rods 123 can be set as required and will not be specifically limited here.

[0059] Furthermore, the first loading bin 11 is provided with a plurality of fixing slots, and a plurality of fixing rods 123 are correspondingly clamped in the plurality of fixing slots one by one to improve the stability of the second loading bin 12. Specifically, in this embodiment, there are also four fixing slots correspondingly.

[0060] Optionally, the device further includes a support structure 3. The support structure 3 includes a first support frame 31 and a second support frame 32. Along the axial direction of the pipeline 100, the first support frame 31 and the second support frame 32 are respectively arranged at both ends of the first loading bin 11. The above setting can improve the stability of the loading structure 1. At the same time, both ends of the pipeline 100 are located inside the support structure 3, which can ensure the stability and safety of the pipeline 100 during the test.

[0061] Furthermore, anti-slip structures are provided on the bottom sides of the first support frame 31 and / or the second support frame 32. The anti-slip structure is an anti-slip pad provided on the bottom side of the first support frame 31 and / or the second support frame 32, such as a rubber pad; or, the anti-slip structure is an anti-slip protrusion provided on the bottom side of the first support frame 31 and / or the second support frame 32. The anti-slip protrusion can be a dot-like protrusion or a protrusion with a pattern of any shape. Its function is to increase the contact friction between the first support frame 31 and the support foundation and / or increase the contact friction between the second support frame 32 and the support foundation, thereby improving the stability of the support structure 3 when it abuts against the support foundation. The specific form refers to the prior art and is not specifically limited in this embodiment, as long as it can play the role of increasing friction.

[0062] The above support foundation can be a flat ground or a dedicated test platform.

[0063] Optionally, the driving structure 2 includes a driving mechanism 21, a connecting member 22, a first pulley assembly 23, and a second pulley assembly 24. The driving mechanism 21 is arranged at an interval from the loading structure 1. The two ends of the connecting member 22 are correspondingly connected to the two ends of the pipeline 100 and are connected to the driving mechanism 21. The first pulley assembly 23 is arranged on the first support frame 31, and the second pulley assembly 24 is arranged on the second support frame 32. The connecting member 22 is slidably abutted against the first pulley assembly 23 and the second pulley assembly 24 in sequence. Under the drive of the driving mechanism 21, the two ends of the connecting member 22 reciprocate along the axial direction of the pipeline 100 to drive the pipeline 100 to reciprocate, so as to simulate the wear condition of the pipeline 100 in actual application.

[0064] Specifically, the driving mechanism 21 is a commonly used motor in the art. A rotating shaft is provided at the output end of the motor. The connecting member 22 is wound around the rotating shaft. Under the drive of the motor, the rotating shaft rotates around its own axis, driving the movement of the connecting member 22, and further driving the reciprocating movement of the pipeline 100. In addition, in this embodiment, the connecting member 22 is a steel cable, which has extremely high tensile strength and load-bearing capacity, as well as excellent anti-corrosion, wear-resistant, and rust-proof performance; at the same time, it has good flexibility and can be bent around pulleys or drums.

[0065] Or, in other embodiments, the driving structure 2 can also be a hydraulic rod. The output end of the hydraulic rod is connected to the pipeline 100. By the telescopic movement of the output end of the hydraulic rod, the pipeline 100 can be driven to reciprocate along its own axial direction, which can also simulate the wear condition of the pipeline 100 in actual application.

[0066] Furthermore, clamping members 221 are provided at both ends of the connecting member 22, and the two clamping members 221 are respectively clamped to the two ends of the pipeline 100. The above setting facilitates the connection and fixation of the connecting member 22 to the pipeline 100, with simple and convenient operation, which is conducive to improving the test efficiency. Specifically, the clamping member 221 is a commonly used clamping device in the art, and its specific structure and principle refer to the prior art and will not be elaborated here.

[0067] Optionally, as Figure 3 shown, the first pulley assembly 23 includes a first pulley 231 and a second pulley 232, and the first pulley 231 and the second pulley 232 are vertically spaced apart at one end of the first support frame 31 away from the first loading bin 11; as Figure 4 shown, the second pulley assembly 24 includes a third pulley 241 and a fourth pulley 242, and the third pulley 241 and the fourth pulley 242 are vertically spaced apart at one end of the second support frame 32 away from the first loading bin 11. Combining Figure 1 , the connecting member 22 located between the second pulley 232 and the fourth pulley 242 is spaced apart and arranged on the bottom side of the pipeline 100. The above setting can optimize the spatial layout of the device and improve the space utilization rate.

[0068] Specifically in this embodiment, the driving mechanism 21, the first pulley assembly 23 and the second pulley assembly 24 are spaced apart along the axial direction of the pipeline 100; in other embodiments, the driving mechanism 21, the first pulley assembly 23 and the second pulley assembly 24 can also be arranged in a triangle.

[0069] Furthermore, an avoidance groove 110 is provided on the bottom side of the first loading bin 11, and the avoidance groove 110 is used to allow the connecting member 22 to pass through, further optimizing the spatial layout and ensuring the smooth movement of the connecting member 22.

[0070] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A pipeline anti-external force damage performance testing device, characterized in that, Comprising: A loading structure (1), including a first loading bin (11) and a second loading bin (12), a pipeline (100) to be tested is placed in the first loading bin (11), and both ends of the pipeline (100) extend out of the first loading bin (11); the second loading bin (12) is placed above the first loading bin (11) and abuts against the outer wall of the pipeline (100); fillers are installed in both the first loading bin (11) and the second loading bin (12). A driving structure (2), connected to the pipeline (100), under the drive of the driving structure (2), the pipeline (100) can reciprocate along its own axis direction.

2. The pipeline anti-external force damage performance testing device according to claim 1, characterized in that, It further includes a support structure (3), the support structure (3) includes a first support frame (31) and a second support frame (32), along the axis direction of the pipeline (100), the first support frame (31) and the second support frame (32) are respectively arranged at both ends of the first loading bin (11).

3. The pipeline anti-external force damage performance testing device according to claim 2, wherein, The driving structure (2) includes: A driving mechanism (21), spaced apart from the loading structure (1); A connecting member (22), both ends of the connecting member (22) are correspondingly connected to both ends of the pipeline (100) and connected to the driving mechanism (21); A first pulley assembly (23), arranged on the first support frame (31); A second pulley assembly (24), arranged on the second support frame (32); the connecting member (22) sequentially and slidably abuts against the first pulley assembly (23) and the second pulley assembly (24); Under the drive of the driving mechanism (21), both ends of the connecting member (22) reciprocate along the axis direction of the pipeline (100) to drive the pipeline (100) to reciprocate.

4. The pipeline anti-external force damage performance testing device according to claim 3, characterized in that Both ends of the connecting member (22) are provided with clamping members (221), and the two clamping members (221) correspondingly clamp the two ends of the pipeline (100).

5. The pipeline anti-external force damage performance testing device according to claim 3, characterized in that The first pulley assembly (23) includes a first pulley (231) and a second pulley (232), the first pulley (231) and the second pulley (232) are vertically spaced apart and arranged at one end of the first support frame (31) away from the first loading bin (11); The second pulley assembly (24) includes a third pulley (241) and a fourth pulley (242), the third pulley (241) and the fourth pulley (242) are vertically spaced apart and arranged at one end of the second support frame (32) away from the first loading bin (11); The connecting member (22) between the second pulley (232) and the fourth pulley (242) is spaced apart and arranged at the bottom side of the pipeline (100).

6. The pipeline external force damage resistance performance testing device according to claim 5, wherein A relief groove (110) is provided at the bottom side of the first loading bin (11), and the relief groove (110) is used to allow the connecting member (22) to pass through.

7. The pipeline anti-external force damage performance testing device according to claim 2, characterized in that, Anti-slip structures are provided at the bottom sides of the first support frame (31) and / or the second support frame (32).

8. The pipeline external force damage resistance performance testing device according to claim 1, wherein The first loading bin (11) includes: a bottom plate (111); two first plates (112) spaced apart along the axial direction of the pipeline (100) at both ends of the bottom plate (111), each first plate (112) is provided with a first arc-shaped groove, and the pipeline (100) abuts against the first arc-shaped groove; two second plates (113) spaced apart along the radial direction of the pipeline (100) at both ends of the bottom plate (111), and the second plates (113) are connected between the two first plates (112).

9. The pipeline anti-external force damage performance testing device according to claim 1, wherein, The second loading bin (12) includes: two third plates (121) spaced apart along the axial direction of the pipeline (100), each third plate (121) is provided with a second arc-shaped groove, and the pipeline (100) abuts against the second arc-shaped groove; two fourth plates (122) spaced apart along the radial direction of the pipeline (100), and the fourth plates (122) are connected between the two third plates (121); a plurality of fixing rods (123) all extending along the radial direction of the pipeline (100), and each fixing rod (123) is arranged between the fourth plate (122) and the first loading bin (11).

10. The pipeline anti-external force damage performance testing device according to claim 9, characterized in that, The first loading bin (11) is provided with a plurality of fixing grooves, and the plurality of fixing rods (123) are respectively clamped in the plurality of fixing grooves in a one-to-one correspondence.

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