Nondestructive testing device for petroleum and natural gas pipeline

Abstract

The utility model discloses a nondestructive testing device for petroleum and natural gas pipelines, and relates to the field of maintenance and detection of petroleum and natural gas pipelines. The device specifically comprises a detection ring arranged outside the petroleum and natural gas pipeline, a sliding ring coaxially connected with the detection ring in a sliding mode, a first driving assembly driving the sliding ring to rotate relative to the detection ring, and an electric push rod arranged at the outer end of the sliding ring. The ultrasonic probe is arranged at the inner end of the electric push rod; the second driving assembly is arranged on the inner wall of the detection ring and drives the detection ring to move in the axial direction; the sliding ring is located at one end of the detection ring; the electric push rod is arranged along the radial direction of the detection ring; the plurality of second driving assemblies are arranged in the detection ring in an annular array; the detection ring moves on the petroleum and natural gas pipeline through rotation of the moving wheels, so that the petroleum and natural gas pipeline can be detected continuously during long-distance detection, time and labor are saved, and the convenience of petroleum and natural gas pipeline detection is improved.

Description

Technical Field

[0001] The utility model relates to the field of maintenance and detection of oil and gas pipelines, in particular to a non-destructive detection device for oil and gas pipelines. Background Art

[0002] In the field of maintenance and inspection of oil and gas pipelines, non-destructive testing technology has always been an important means to ensure pipeline safety and operational efficiency. With the continuous improvement of the grade, diameter, wall thickness and transmission pressure of oil and gas pipelines, the requirements for pipeline non-destructive testing technology are becoming increasingly stringent.

[0003] Traditional ultrasonic testing technology mostly needs to be performed inside the pipeline, and a specific coupling agent is needed to tightly fit the ultrasonic sensor to the outer wall of the pipeline. When testing long-distance oil and gas pipelines, it is necessary to test point by point or section by section, which increases the complexity of the detection operation, making the detection process time-consuming, labor-intensive, and inefficient. Therefore, we propose a non-destructive testing device for oil and gas pipelines. Utility Model Content

[0004] The utility model provides a nondestructive testing device for oil and gas pipelines, which solves the problem that the oil and gas pipelines are tested point by point or section by section, and the testing process is time-consuming and labor-intensive.

[0005] The utility model is a non-destructive testing device for oil and gas pipelines adopts the following technical solutions:

[0006] The device comprises a detection ring arranged on the outside of the oil and gas pipeline, a sliding ring coaxially slidably connected to the detection ring, a first driving assembly driving the sliding ring to rotate relative to the detection ring, an electric push rod arranged at the outer end of the sliding ring, an ultrasonic probe arranged at the inner end of the electric push rod, and a second driving assembly arranged on the inner wall of the detection ring and driving the detection ring to move axially;

[0007] The sliding ring is located at one end of the detection ring; the electric push rod is arranged along the radial direction of the detection ring;

[0008] There are multiple second drive components, which are arranged in a ring array inside the detection ring; the second drive components include a mounting frame arranged along the axial direction of the detection ring, a plurality of movable wheels rotatably connected to the mounting frame, a first motor that drives one movable wheel to rotate, a plurality of rotating rods arranged in parallel between the mounting frame and the inner wall of the detection ring, and an electric telescopic rod rotatably arranged between a rotating rod and the detection ring.

[0009] Preferably, the first driving assembly includes an outer gear ring fixedly sleeved on the outside of the sliding ring, a gear meshing with the outer gear ring, and a second motor provided on the outer wall of the detection ring and driving the gear to rotate.

[0010] Preferably, the outer end of the detection ring is provided with a T-shaped annular sliding rail, the inner end of the sliding ring is provided with a T-shaped annular sliding groove, and the annular sliding rail and the annular sliding groove are in sliding connection.

[0011] Preferably, the moving track of the moving wheel extends along the axial direction of the detection ring; and the first motor is arranged on the mounting frame.

[0012] Preferably, one end of the rotating rod is rotatably connected to the first support, the other end of the rotating rod is rotatably connected to the second support, the first support is fixedly arranged on the inner wall of the detection ring, and the second support is fixedly arranged on the top of the mounting frame.

[0013] One end of the electric telescopic rod is connected to the third support, the other end of the electric telescopic rod is connected to the fourth support, the third support is fixedly arranged on the inner wall of the detection ring, and the fourth support is fixedly arranged on the rotating rod.

[0014] The beneficial effects of the present application compared with the prior art are:

[0015] The rotating rod is driven to rotate under the action of the electric telescopic rod, so as to adjust the distance of the moving wheel relative to the outer wall of the oil and gas pipeline, the mounting frame drives the moving wheel to abut against the surface of the oil and gas pipeline, the detection ring moves on the oil and gas pipeline through the rotation of the moving wheel, and the oil and gas pipeline can be continuously detected during long-distance detection, time and labor are saved, and the convenience of oil and gas pipeline detection is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Fig. 1 It is a structural schematic view of the present application with an oil and gas pipeline;

[0018] Fig. 2 It is a structural schematic view of the second driving assembly of the present application;

[0019] Fig. 3 It is a sectional view of the present application;

[0020] Fig. 4 It is a sectional view of the sliding ring of the present application.

[0021] EXPLANATION OF REFERENCE NUMERALS

[0022] 1, detection ring; 2, sliding ring; 3, electric push rod; 4, ultrasonic probe; 5, mounting frame; 6, moving wheel; 7, first motor; 8, rotating rod; 9, electric telescopic rod; 10, outer gear ring; 11, gear; 12, second motor; 13, first support; 14, second support; 15, third support; 16, fourth support. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] An embodiment of the nondestructive testing device for oil and gas pipeline provided by the utility model is shown in the drawings as follows. Figs. 1 to 4 The device comprises a detection ring 1 arranged outside the oil and gas pipeline, a sliding ring 2 coaxially and slidingly connected with the detection ring 1, a first driving assembly for driving the sliding ring 2 to rotate relative to the detection ring 2, an electric push rod 3 arranged at the outer end of the sliding ring 2, an ultrasonic probe 4 arranged at the inner end of the electric push rod 3, and a second driving assembly arranged on the inner wall of the detection ring 1 and used for driving the detection ring 1 to move along the axial direction.

[0025] The sliding ring 2 is located at one end of the detection ring 1; and the electric push rod 4 is arranged along the radial direction of the detection ring 1.

[0026] The second driving assembly comprises a mounting frame 5 arranged along the axial direction of the detection ring 1, a plurality of moving wheels 6 rotatably connected to the mounting frame 5, a first motor 7 for driving one moving wheel 6 to rotate, a plurality of rotating rods 8 arranged in parallel between the mounting frame 5 and the inner wall of the detection ring 1, and an electric telescopic rod 9 rotatably arranged between one rotating rod 8 and the detection ring 1.

[0027] In the embodiment, under the action of the first driving assembly, the sliding ring 2 rotates relative to the detection ring 1 around the central axis, and the rotation of the sliding ring 2 drives the ultrasonic probe 4 arranged at the inner end of the electric push rod 3 to rotate around the circumferential direction of the oil and gas pipeline, and meanwhile, the electric push rod 3 can adjust the distance between the ultrasonic probe 4 and the outer wall of the oil and gas pipeline in the radial direction, so as to ensure that the ultrasonic probe 4 can abut against the outer wall of the oil and gas pipeline.

[0028] In the embodiment, under the action of the second driving assembly, the detection ring 1 can move along the extension direction of the oil and gas pipeline.

[0029] It is to be noted that the second driving assembly has three in this embodiment.

[0030] It is to be noted that the mounting frame 5 is rotatably connected with two moving wheels 6, and two rotating rods 8 are arranged between the mounting frame 5 and the inner wall of the detection ring 1.

[0031] It is to be noted that the moving wheel 6 is connected with the detection ring 1 through the rotating rod 8 connected with the mounting frame 5, and the moving wheel 6 rotates under the action of the first motor 7, thereby driving the detection ring 1 to move along the extension direction of the oil and gas pipeline, and meanwhile, the rotating rod 8 rotates under the action of the electric telescopic rod 9, and the angle of the rotating rod 8 relative to the detection ring changes, thereby adjusting the distance between the moving wheel 6 and the oil and gas pipeline, and ensuring that the moving wheel 6 always abuts against the oil and gas pipeline.

[0032] In this embodiment, the first driving assembly includes an outer gear ring 10 fixedly sleeved on the outer wall of the sliding ring 2, a gear 11 engaged with the outer gear ring 10, and a second motor 12 arranged on the outer wall of the detection ring 1 and driving the gear 11 to rotate.

[0033] It is to be noted that the gear 11 rotates under the driving of the second motor 12, thereby driving the outer gear ring 10 to rotate, i.e., the sliding ring 2 rotates relative to the detection ring 1.

[0034] In this embodiment, the outer end of the detection ring 1 is provided with a T-shaped annular slide rail, the inner end of the sliding ring 2 is provided with a T-shaped annular slide groove, and the annular slide rail and the annular slide groove are slidably connected.

[0035] In this embodiment, the moving trajectory of the moving wheel 6 extends along the axial direction of the detection ring 1; and the first motor 7 is arranged on the mounting frame 5.

[0036] In this embodiment, one end of the rotating rod 8 is rotatably connected with a first support 13, and the other end of the rotating rod 8 is rotatably connected with a second support 14, the first support 14 is fixedly arranged on the inner wall of the detection ring 1, and the second support 14 is fixedly arranged on the top of the mounting frame 5.

[0037] One end of the electric telescopic rod 9 is connected with a third support 15, and the other end of the electric telescopic rod 9 is connected with a fourth support 16, the third support 15 is fixedly arranged on the inner wall of the detection ring 1, and the fourth support 16 is fixedly arranged on the rotating rod 8.

[0038] In actual use, the detection ring 1 is sleeved outside the oil and gas pipeline, the electric telescopic rod 9 is started by connecting an external power supply, the electric telescopic rod 9 drives the corresponding rotating rod 8 to rotate, so that the mounting frame 5 drives the two moving wheels 6 to abut against the surface of the oil and gas pipeline, the first motor 7 is started by connecting an external power supply, so that the first motor 7 can drive the corresponding moving wheel 6 to rotate, so that the moving wheel 6 drives the detection ring 1 to move on the oil and gas pipeline, the second motor 12 is started by connecting an external power supply, the second motor 12 drives the gear 11 to rotate, the rotation of the gear 11 drives the outer gear ring 10 to rotate, so that the sliding ring 2 drives the ultrasonic probe 4 to rotate around the oil and gas pipeline for detection, the electric push rod 3 is started by connecting an external power supply, the electric push rod 3 drives the ultrasonic probe 4 to approach the oil and gas pipeline.

[0039] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for non-destructive testing of oil and gas pipelines, characterized in that, The utility model relates to a detection device for oil and gas pipeline, which comprises a detection ring (1) arranged outside the oil and gas pipeline, a sliding ring (2) coaxially connected with the detection ring (1), a first driving assembly for driving the sliding ring (2) to rotate relative to the detection ring (1), an electric push rod (3) arranged at the outer end of the sliding ring (2), an ultrasonic probe (4) arranged at the inner end of the electric push rod (3), and a second driving assembly arranged on the inner wall of the detection ring (1) and used for driving the detection ring (1) to move along the axial direction. The sliding ring (2) is arranged at one end of the detection ring (1), and the electric push rod (3) is arranged along the radial direction of the detection ring (1). The second driving assembly comprises a mounting frame (5) arranged along the axial direction of the detection ring (1), a plurality of moving wheels (6) rotatably connected to the mounting frame (5), a first motor (7) for driving one of the moving wheels (6) to rotate, a plurality of rotating rods (8) arranged in parallel between the mounting frame (5) and the inner wall of the detection ring (1), and an electric telescopic rod (9) rotatably arranged between one of the rotating rods (8) and the detection ring (1).

2. A device for non-destructive testing of oil and gas pipelines according to claim 1, characterized in that, The first driving assembly comprises an outer gear ring (10) fixedly sleeved on the outer side of the sliding ring (2), a gear (11) engaged with the outer gear ring (10), and a second motor (12) arranged on the outer wall of the detection ring (1) and used for driving the gear (11) to rotate.

3. A device for non-destructive testing of oil and gas pipelines according to claim 1, characterized in that, The outer end of the detection ring (1) is provided with a T-shaped annular slide rail, and the inner end of the sliding ring (2) is provided with a T-shaped annular slide groove, and the annular slide rail and the annular slide groove are in sliding connection.

4. The apparatus for non-destructive testing of oil and gas pipelines as claimed in claim 1, wherein, The moving track of the moving wheel (6) extends along the axial direction of the detection ring (1), and the first motor (7) is arranged on the mounting frame (5).

5. The apparatus for non-destructive testing of oil and gas pipelines as claimed in claim 1, wherein, One end of the rotating rod (8) is rotatably connected to a first support (13), and the other end of the rotating rod (8) is rotatably connected to a second support (14), the first support (13) is fixedly arranged on the inner wall of the detection ring (1), and the second support (14) is fixedly arranged on the top of the mounting frame (5). One end of the electric telescopic rod (9) is connected to a third support (15), and the other end of the electric telescopic rod (9) is connected to a fourth support (16), the third support (15) is fixedly arranged on the inner wall of the detection ring (1), and the fourth support (16) is fixedly arranged on the rotating rod (8).

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