Subsea pipeline nondestructive flaw detection auxiliary equipment

Abstract

The utility model discloses subsea pipeline nondestructive flaw detection auxiliary equipment which comprises a detection frame, a sliding groove is formed in the middle of the detection frame, a sliding plate is connected in the sliding groove in a sliding mode, two vertical plates are fixedly installed at the upper end of the sliding plate and are symmetrically arranged, and the two vertical plates are symmetrically arranged. A flaw detection mechanism for detection is arranged between the two vertical plates; the detection frame is provided with a reciprocating mechanism used for reciprocating motion of the sliding plate. Under the action of the reciprocating mechanism, the detection probe can move in a reciprocating mode, flaw detection can be conducted on different monitoring points without moving the position of the detection probe, it is avoided that the detection frame is fixed to a subsea pipeline, and manual handheld operation is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of submarine pipeline flaw detection, in particular to an auxiliary device for non-destructive flaw detection of submarine pipelines. Background Art

[0002] Ultrasonic flaw detection is a method for inspecting part defects. Generally, it refers to ultrasonic testing, a conventional non-destructive testing method. Ultrasonic testing, also called ultrasonic inspection, uses ultrasonic technology for testing work.

[0003] In the prior art, since most offshore oil drilling platforms are made of steel structures, such structures are very vulnerable to corrosion. Therefore, corrosion detection and weld inspection need to be carried out frequently to ensure the normal use of the platform. However, when performing non-destructive testing on offshore drilling platforms, testers generally need to climb with ropes and hang in the ocean, and then perform flaw detection on different monitoring points. Prolonged detection makes the wrists fatigued, reducing the detection efficiency and having a high risk factor. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies in the prior art and propose an auxiliary device for non-destructive flaw detection of submarine pipelines. Under the action of a reciprocating mechanism, the detection probe can reciprocate, and flaw detection can be carried out on different monitoring points without moving the position of the detection probe. It can fix the detection frame on the submarine pipeline and does not require manual holding for operation.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An auxiliary device for non-destructive flaw detection of submarine pipelines includes a detection frame. A chute is provided in the middle of the detection frame. A sliding plate is slidably connected inside the chute. Two vertical plates are fixedly installed at the upper end of the sliding plate, and the two vertical plates are symmetrically arranged. A flaw detection mechanism for detection is provided between the two vertical plates.

[0007] A reciprocating mechanism for the reciprocating movement of the sliding plate is provided on the detection frame.

[0008] Preferably, the detection frame is in a right-angled U-shaped structure, and the upper sides of both ends of the detection frame are arc surfaces.

[0009] Preferably, the flaw detection mechanism includes a cross plate fixedly installed between the two vertical plates. A telescopic cylinder is fixedly installed at the lower end of the cross plate. A lifting plate is fixedly installed at the telescopic end of the telescopic cylinder. A detection probe is fixedly installed at the upper end of the lifting plate.

[0010] Preferably, the sliding plate is in an "I" - shaped structure.

[0011] Preferably, the reciprocating mechanism includes a first motor fixedly installed on the side wall of the detection frame. The end of the output shaft of the first motor extends into the chute and is fixedly installed with a reciprocating lead screw, and the reciprocating lead screw is threadedly connected to the sliding plate.

[0012] Preferably, handles for holding are fixedly installed on both the left and right sides of the detection frame.

[0013] Preferably, two clamping mechanisms for clamping the submarine pipeline are symmetrically arranged at the upper end of the detection frame.

[0014] Preferably, the clamping mechanism includes a vertical rod fixedly installed at the upper end of the detection frame. The upper end of the vertical rod is fixedly installed with a fixing plate. A threaded rod is rotatably connected between the fixing plate and the detection frame. A clamping member is arranged on both the threaded rod and the vertical rod. A second motor for driving the threaded rod to rotate is fixedly installed at the lower end of the detection frame.

[0015] Preferably, the clamping member is provided with a threaded hole adapted to the threaded rod and a through hole adapted to the vertical rod in a penetrating manner.

[0016] Preferably, the lower end surface of the clamping member is an arc surface, and rubber pads are fixedly installed on both the lower end surface of the clamping member and the surface opposite to the detection frame.

[0017] The present utility model has the following beneficial effects:

[0018] 1. Through the design of the reciprocating mechanism and the sliding plate, the rotation of the output shaft of the first motor drives the reciprocating lead screw, and the rotation of the reciprocating lead screw drives the sliding plate to reciprocate, so that the detection probe reciprocates, and the submarine pipeline to be detected can be detected. There is no need to move the detection frame;

[0019] 2. Through the design of the flaw detection mechanism, the telescopic push of the telescopic cylinder can adjust the position of the detection probe, so as to meet different usage requirements;

[0020] 3. Through the design of the handle, it can be held by hand, and the force application is more convenient, so as to facilitate the use of the detection frame by pressing it tightly;

[0021] 4. Through the design of the clamping mechanism, the rotation of the output shaft of the second motor drives the threaded rod to rotate, realizing the movement of the clamping member. The clamping member can clamp the submarine pipeline to be detected, so that there is no need to press it tightly manually, and the stability of the detection is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of Embodiment 1 of an auxiliary device for non-destructive flaw detection of submarine pipelines proposed by the present utility model;

[0023] Figure 2 is a bottom view of Embodiment 1 of an auxiliary device for non-destructive flaw detection of submarine pipelines proposed by the present utility model;

[0024] Figure 3 This is a schematic structural diagram of the second embodiment of an auxiliary device for non-destructive flaw detection of submarine pipelines proposed by the present utility model;

[0025] Figure 4 This is a schematic structural diagram of the third embodiment of an auxiliary device for non-destructive flaw detection of submarine pipelines proposed by the present utility model.

[0026] In the figure: 1 detection frame, 2 chute, 3 sliding plate, 4 reciprocating lead screw, 5 first motor, 6 vertical plate, 7 horizontal plate, 8 telescopic cylinder, 9 lifting plate, 10 detection probe, 11 handle, 12 clamping member, 13 vertical rod, 14 threaded rod, 15 fixing plate, 16 second motor. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, 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 therefore should not be construed as a limitation to the present utility model.

[0029] Embodiment 1

[0030] Refer to Figure 1 - Figure 2 , an auxiliary device for non-destructive flaw detection of submarine pipelines, including a detection frame 1. The detection frame 1 is a right-angled U-shaped structure, and the upper sides of both ends of the detection frame 1 are arc surfaces. A chute 2 is provided in the middle of the detection frame 1, and a sliding plate 3 is slidably connected inside the chute 2. The sliding plate 3 is an "I"-shaped structure. Two vertical plates 6 are fixedly installed at the upper end of the sliding plate 3, and the two vertical plates 6 are symmetrically arranged. A flaw detection mechanism for detection is provided between the two vertical plates 6. The flaw detection mechanism includes a horizontal plate 7 fixedly installed between the two vertical plates 6. A telescopic cylinder 8 is fixedly installed at the lower end of the horizontal plate 7, and a lifting plate 9 is fixedly installed at the telescopic end of the telescopic cylinder 8. A detection probe 10 is fixedly installed at the upper end of the lifting plate 9;

[0031] A reciprocating mechanism for the reciprocating movement of the sliding plate 3 is provided on the detection frame 1. The reciprocating mechanism includes a first motor 5 fixedly installed on the side wall of the detection frame 1. The end of the output shaft of the first motor 5 extends into the chute 2 and is fixedly installed with a reciprocating lead screw 4. The reciprocating lead screw 4 is threadedly connected to the sliding plate 3.

[0032] First, bring the detection frame 1 into contact with the submarine pipeline to be detected. Open the telescopic cylinder 8 to push the lifting plate 9 towards the direction of the submarine pipeline to be detected, so that the detection probe 10 is in the detection position. Then start the first motor 5. The output shaft of the first motor 5 rotates to drive the reciprocating lead screw 4, and the rotation of the reciprocating lead screw 4 drives the sliding plate 3 to reciprocate, so that the detection probe 10 reciprocates, and the submarine pipeline to be detected can be detected and processed.

[0033] Embodiment 2

[0034] Refer to Figure 3 , the advantage of this embodiment compared with Embodiment 1 is that handles 11 for holding are fixedly installed on both the left and right sides of the detection frame 1;

[0035] Through the design of the handle 11, it can be held by hand, making the application of force more convenient, thus facilitating the use of the detection frame 1 for pressing tightly.

[0036] Embodiment 3

[0037] Refer to Figure 4 , the advantage of this embodiment compared with Embodiment 1 is that two clamping mechanisms for clamping the submarine pipeline are symmetrically arranged at the upper end of the detection frame 1. The clamping mechanism includes a vertical rod 13 fixedly installed at the upper end of the detection frame 1. A fixing plate 15 is fixedly installed at the upper end of the vertical rod 13. A threaded rod 14 is rotatably connected between the fixing plate 15 and the detection frame 1. A clamping member 12 is arranged on both the threaded rod 14 and the vertical rod 13. A second motor 16 for driving the threaded rod 14 to rotate is fixedly installed at the lower end of the detection frame 1. A threaded hole adapted to the threaded rod 14 and a through hole adapted to the vertical rod 13 are provided through the clamping member 12. The lower end surface of the clamping member 12 is an arc surface. Rubber pads are fixedly installed on both the lower end surface of the clamping member 12 and the surface opposite to the detection frame 1;

[0038] Place the submarine pipeline to be detected between the clamping member 12 and the detection frame 1, and start the second motor 16. The output shaft of the second motor 16 rotates to drive the threaded rod 14 to rotate, realizing the movement of the clamping member 12. The clamping member 12 can clamp the submarine pipeline to be detected, so that there is no need for manual pressing, and the stability of detection is improved.

[0039] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. An auxiliary device for nondestructive flaw detection of submarine pipelines, comprising a detection frame (1), characterized in that, A chute (2) is provided in the middle of the detection frame (1). A sliding plate (3) is slidably connected inside the chute (2). Two vertical plates (6) are fixedly installed at the upper end of the sliding plate (3), and the two vertical plates (6) are symmetrically arranged. A flaw detection mechanism for detection is arranged between the two vertical plates (6). A reciprocating mechanism for the reciprocating movement of the sliding plate (3) is arranged on the detection frame (1).

2. The auxiliary device for non-destructive flaw detection of submarine pipelines according to claim 1, wherein The detection frame (1) is of a right-angled U-shaped structure, and the upper sides of both ends of the detection frame (1) are arc surfaces.

3. An auxiliary device for non-destructive flaw detection of submarine pipelines according to claim 1, characterized in that, The flaw detection mechanism includes a cross plate (7) fixedly installed between the two vertical plates (6). A telescopic cylinder (8) is fixedly installed at the lower end of the cross plate (7). The telescopic end of the telescopic cylinder (8) is fixedly installed with a lifting plate (9). A detection probe (10) is fixedly installed at the upper end of the lifting plate (9).

4. An auxiliary device for non-destructive flaw detection of submarine pipelines according to claim 1, characterized in that, The sliding plate (3) is of an "I"-shaped structure.

5. An auxiliary device for non-destructive flaw detection of submarine pipelines according to claim 1, characterized in that, The reciprocating mechanism includes a first motor (5) fixedly installed on the side wall of the detection frame (1). The end of the output shaft of the first motor (5) extends into the chute (2) and is fixedly installed with a reciprocating lead screw (4). The reciprocating lead screw (4) is threadedly connected to the sliding plate (3).

6. An auxiliary device for non-destructive flaw detection of submarine pipelines according to claim 1, characterized in that, Handles (11) for holding are fixedly installed on both the left and right sides of the detection frame (1).

7. An auxiliary device for non-destructive flaw detection of submarine pipelines according to claim 1, characterized in that, Two clamping mechanisms for clamping submarine pipelines are symmetrically arranged at the upper end of the detection frame (1).

8. An auxiliary device for non-destructive flaw detection of submarine pipelines according to claim 7, characterized in that, The clamping mechanism includes a vertical rod (13) fixedly installed at the upper end of the detection frame (1). A fixing plate (15) is fixedly installed at the upper end of the vertical rod (13). A threaded rod (14) is rotatably connected between the fixing plate (15) and the detection frame (1). A clamping member (12) is jointly arranged on the threaded rod (14) and the vertical rod (13). A second motor (16) for driving the threaded rod (14) to rotate is fixedly installed at the lower end of the detection frame (1).

9. An auxiliary device for non-destructive flaw detection of submarine pipelines according to claim 8, characterized in that, The clamping member (12) is provided with a threaded hole adapted to the threaded rod (14) and a through hole adapted to the vertical rod (13) in a penetrating manner.

10. An auxiliary device for non-destructive flaw detection of submarine pipelines according to claim 8, characterized in that, The lower end surface of the clamping member (12) is an arc surface, and rubber pads are fixedly installed on both the lower end surface of the clamping member (12) and the surface opposite to the detection frame (1).

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