Oil-water well pipe flaw detection device

Abstract

The utility model provides an oil-water well pipe flaw detection device which comprises a detector and a moving mechanism, the moving mechanism comprises a supporting block, a dovetail groove, a sliding rod, a sleeve, a second reset spring, a sliding block, a supporting plate, a servo motor, a connecting block and a rolling wheel, and a detection probe is installed on the inner side of a fixing ring. And a moving mechanism is arranged on one side of the surface of the fixing ring. According to the oil-water well pipe flaw detection device, through the arrangement of a moving mechanism, a supporting plate is pulled in the direction away from a pipeline, a second reset spring is compressed, so that a sliding block is driven to slide in a dovetail groove, the sliding block drives the supporting plate to move, then a fixing ring is pushed, and at the moment, a ball and the pipeline roll to drive the fixing ring to move; then the acting force applied to the supporting plate is released, a second reset spring rebounds to drive the rolling wheels to be attached to the pipeline, the two sets of rolling wheels are clamped on the two sides of the pipeline, a servo motor drives the rolling wheels to roll through a connecting block, and the rolling wheels drive the detector and the detection probe to move on the surface of the pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field related to oil well pipes, in particular to an oil and water well pipe flaw detection device. Background Art

[0002] Oil well pipe, also known as petroleum special pipe, is the foundation of the oil industry. Casing, oil pipe and drill string components (drill pipe, drill collar, square drill pipe, etc.) are collectively called oil well pipe. In my country's oil fields, many abandoned oil wells are caused by casing problems. Due to various reasons, about some casings are defective and leave the factory. Not only casing defects exist, but also oil transportation pipelines will have defects such as wear, rust, and cracks. These defects cause oil production and transportation safety problems, resulting in huge economic losses and damage to employees' personal safety. This situation happens from time to time. In order to avoid safety accidents, non-destructive testing methods such as radiographic testing and ultrasonic testing are currently used for oil pipelines. Therefore, a flaw detection device for oil and water well pipes is particularly needed.

[0003] However, in the existing oil and water well pipe flaw detection devices, most of the flaw detection devices are used by detection personnel to detect the pipeline with handheld detection instruments and detection probes, which has low operation efficiency and relatively wastes work time. Utility Model Content

[0004] The utility model aims to provide an oil and water well pipe flaw detection device to solve the problem that the existing oil and water well pipe flaw detection device proposed in the above background technology, but the existing oil and water well pipe flaw detection device, during use, most of the flaw detection devices are for detection personnel to hand-hold the detection instrument and the detection probe to detect the pipeline, so the operation efficiency is low and the working time is relatively wasted.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil and water well pipe flaw detection device, comprising a detector and a moving mechanism, wherein the moving mechanism comprises a support block, a dovetail groove, a slide rod, a casing, a second reset spring, a slider, a support plate, a servo motor, a connecting block and a roller, a fixed ring is fixedly connected to one side of the surface of the detector, a detection probe is installed on the inner side of the fixed ring, a fixing mechanism is arranged on the inner side of the fixed ring, and a moving mechanism is arranged on one side of the surface of the fixed ring.

[0006] Preferably, the fixing mechanism includes a screw rod, a first limiting groove, a first return spring, a rotating knob, a top plate, a fixed block, a second limiting groove, a third limiting groove and a ball roller, a screw rod passes through one side of the surface of the fixed ring, a first limiting groove is provided inside the screw rod, a rotating knob is welded at one end of the screw rod, a first return spring is arranged inside the first limiting groove, a top plate is welded at one end of the first return spring, one end of the top plate is embedded in the fixed block, a second limiting groove is provided on one side of the surface of the fixed block, a third limiting groove is provided on the other side of the surface of the fixed block, and a ball roller is arranged inside the third limiting groove.

[0007] Preferably, one end of the first return spring is welded to the screw rod inside the first limiting groove, and the top plate is embedded in the second limiting groove.

[0008] Preferably, the moving mechanism includes a support block, a dovetail groove, a sliding rod, a sleeve, a second return spring, a slider, a support plate, a servo motor, a connecting block and a roller, a support block is welded to one side of the surface of the fixing ring, a dovetail groove is provided on one side of the surface of the support block, a sliding rod is welded inside the dovetail groove, a sleeve is sleeved on the surface of the sliding rod, a second return spring is sleeved on the surface of the sleeve, a slider is welded to one end of the sleeve, a support plate is welded to one side of the surface of the slider, a servo motor is installed on one side of the surface of the support plate, one end of the servo motor is fixedly connected to the connecting block, and a roller is installed on the other end of the connecting block.

[0009] Preferably, the slide rod and the sleeve form a mutual sliding structure, one end of the second return spring is welded to the support block inside the dovetail groove, and the other end of the second return spring is welded to the slider.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the oil and water well pipe flaw detection device, through the arrangement of the support block, dovetail groove, slide bar, casing, second return spring, slider, support plate, servo motor, connection block and roller, when in use, after the fixing mechanism fixes the pipeline inside the fixing ring, the support plate is pulled away from the pipeline, at this time, the force pulling the support plate is transmitted to the second return spring through the slider, so that the second return spring is compressed, and at the same time the slide bar and casing slide with each other, at this time the second return spring drives the slider to slide inside the dovetail groove, so that the slider drives the support plate to move, and then pushes the fixing ring At this time, the ball and the pipe roll to drive the fixed ring to move, and then release the force applied to the support plate. At this time, the second return spring rebounds to drive the slider to move, thereby driving the support plate to move. When the roller fits the pipe, the second return spring stops deforming, so that the two sets of rollers are clamped on both sides of the pipe. When the detector and the detection probe are working, turn on the servo motor, and the servo motor drives the roller to roll through the connecting block, so that the roller drives the detector and the detection probe to move on the surface of the pipe. When the detector and the detection probe detect that the pipe is damaged, the servo motor will be powered off, so that the detector stops at the damaged part of the pipe, allowing the staff to perform a secondary inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the side view of the appearance structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the fixing mechanism structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the cross-sectional structure of the screw rod of the utility model;

[0014] Figure 4 This is a schematic diagram of the structure of the mobile mechanism of the utility model;

[0015] Figure 5 This is a schematic diagram of the structure in which the slide rod and the sleeve cooperate with each other in the utility model.

[0016] In the figure: 1. detector; 2. fixing ring; 3. detection probe; 4. fixing mechanism; 401. screw; 402. first limiting groove; 403. first return spring; 404. rotating knob; 405. top plate; 406. fixing block; 407. second limiting groove; 408. third limiting groove; 409. ball bearing; 5. moving mechanism; 501. support block; 502. dovetail groove; 503. slide rod; 504. sleeve; 505. second return spring; 506. slide block; 507. support plate; 508. servo motor; 509. connecting block; 510. roller. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-5 The utility model provides a technical solution: an oil and water well pipe flaw detection device, comprising a detector 1 and a moving mechanism 5, wherein the moving mechanism 5 comprises a support block 501, a dovetail groove 502, a slide bar 503, a casing 504, a second reset spring 505, a slider 506, a support plate 507, a servo motor 508, a connecting block 509 and a roller 510, a fixed ring 2 is fixedly connected to one side of the surface of the detector 1, a detection probe 3 is installed on the inner side of the fixed ring 2, a fixing mechanism 4 is arranged on the inner side of the fixed ring 2, and a moving mechanism 5 is arranged on one side of the surface of the fixed ring 2.

[0019] Furthermore, the fixing mechanism 4 includes a screw rod 401, a first limiting groove 402, a first return spring 403, a rotating knob 404, a top plate 405, a fixing block 406, a second limiting groove 407, a third limiting groove 408 and a ball 409. A screw rod 401 runs through one side of the surface of the fixing ring 2, a first limiting groove 402 is provided inside the screw rod 401, a rotating knob 404 is welded to one end of the screw rod 401, a first return spring 403 is arranged inside the first limiting groove 402, a top plate 405 is welded to one end of the first return spring 403, one end of the top plate 405 is embedded in the fixing block 406, a second limiting groove 407 is provided on one side of the surface of the fixing block 406, a third limiting groove 408 is provided on the other side of the surface of the fixing block 406, a ball 409 is arranged inside the third limiting groove 408, and a first limiting groove 408 is provided with a first limit groove 408. The first return spring 403, the rotating knob 404, the top plate 405, the fixed block 406, the second limiting groove 407, the third limiting groove 408 and the ball 409 are arranged. When in use, first place the pipe to be inspected inside the fixing ring 2, and then turn the rotating knob 404. Since the rotating knob 404 is welded to the screw rod 401 and the screw rod 401 is threadedly connected to the fixing ring 2, the rotating knob 404 drives the screw rod 401 to rotate. Since the first return spring 403 is welded inside the screw rod 401, the other end of the first return spring 403 is welded with the top plate 405 and the top plate 405 is embedded in the second limiting groove 407, the screw rod 401 rotates to drive the fixed block 406 to move, and stops rotating when the ball 409 fits against the pipe, thereby fixing the fixing ring 2 on the surface of the pipe, thereby fixing the detector 1 and the detection probe 3 on the surface of the pipe.

[0020] Furthermore, one end of the first return spring 403 is welded to the screw rod 401 inside the first limiting groove 402, and the top plate 405 is embedded in the second limiting groove 407. Through the setting of the top plate 405 and the second limiting groove 407, when in use, the top plate 405 is embedded in the second limiting groove 407, so that the screw rod 401 can be connected to the fixed block 406. At the same time, the screw rod 401 will only push the fixed block 406 toward the direction of the pipeline without changing the angle of the fixed block 406.

[0021] Furthermore, the moving mechanism 5 includes a support block 501, a dovetail groove 502, a slide bar 503, a sleeve 504, a second return spring 505, a slider 506, a support plate 507, a servo motor 508, a connecting block 509 and a roller 510. The support block 501 is welded on one side of the surface of the fixing ring 2, a dovetail groove 502 is provided on one side of the surface of the support block 501, a slide bar 503 is welded inside the dovetail groove 502, a sleeve 504 is sleeved on the surface of the slide bar 503, a second return spring 505 is sleeved on the surface of the sleeve 504, and a slider 506 is welded on one end of the sleeve 504. A support plate 507 is welded on one side of the surface of the slider 506, a servo motor 508 is installed on one side of the surface of the support plate 507, one end of the servo motor 508 is fixedly connected to a connecting block 509, and a roller 510 is installed on the other end of the connecting block 509. Through the arrangement of the support block 501, the dovetail groove 502, the slide bar 503, the sleeve 504, the second return spring 505, the slider 506, the support plate 507, the servo motor 508, the connecting block 509 and the roller 510, when in use, after the fixing mechanism 4 fixes the pipeline inside the fixing ring 2, the support plate 507 is moved away. The guide rod 503 is pulled away from the pipeline. At this time, the force pulling the support plate 507 is transmitted to the second return spring 505 through the slider 506, so that the second return spring 505 is compressed. At the same time, the slide bar 503 and the sleeve 504 slide against each other. At this time, the second return spring 505 drives the slider 506 to slide inside the dovetail groove 502, so that the slider 506 drives the support plate 507 to move, and then pushes the fixing ring 2. At this time, the ball 409 and the pipeline roll to drive the fixing ring 2 to move, and then release the force applied to the support plate 507. At this time, the second return spring 505 rebounds and drives the slider 506 to move , thereby driving the support plate 507 to move. When the roller 510 is attached to the pipeline, the second return spring 505 stops deforming, so that the two groups of rollers 510 are clamped on both sides of the pipeline. When the detector 1 and the detection probe 3 are working, the servo motor 508 is turned on, and the servo motor 508 drives the roller 510 to roll through the connecting block 509, so that the roller 510 drives the detector 1 and the detection probe 3 to move on the surface of the pipeline. When the detector 1 and the detection probe 3 detect that the pipeline is damaged, the servo motor 508 will be powered off, so that the detector 1 stops at the damaged part of the pipeline, so that the staff can perform a secondary inspection.

[0022] Furthermore, the slide rod 503 and the sleeve 504 form a mutually sliding structure, one end of the second return spring 505 is welded to the support block 501 inside the dovetail groove 502, and the other end of the second return spring 505 is welded to the slider 506. Through the arrangement of the slide rod 503 and the sleeve 504, when in use, the slide rod 503 and the sleeve 504 form a mutually sliding structure that can limit the direction of the second return spring 505, thereby preventing the second return spring 505 from deviating in direction during stretching and rebound deformation. At the same time, the sliding structure formed by the slide rod 503 will not affect the deformation of the second return spring 505.

[0023] Working principle: first, the fixing ring 2 is placed on the surface of the pipeline to be inspected, and then the rotating knob 404 is turned. The rotating knob 404 drives the screw rod 401 to rotate, thereby driving the fixing block 406 to move toward the pipeline. When the ball 409 fits the pipeline, the rotation of the rotating knob 404 is stopped. At this time, the pipeline is fixed inside the fixing ring 2. At the same time, the detection probe 3 is laid around the pipeline, and then the support plate 507 is pulled to compress the second return spring 505 to drive the support plate 507 to move away from the pipeline, and then the fixing ring 2 is pushed. At this time, the ball 409 inside the fixing ring 2 rolls with the pipeline, The fixed ring 2 is driven to move, and then the detector 1 and the detection probe 3 are turned on, and the servo motor 508 is turned on at the same time. While the detector 1 and the detection probe 3 are detecting the pipeline, the servo motor 508 drives the roller 510 to rotate, thereby driving the fixed ring 2 to move on the pipeline surface, so that the detector 1 and the detection probe 3 can perform a comprehensive detection of the pipeline surface. When the pipeline damage is detected, the detector 1 will turn off the servo motor 508, thereby stopping the fixed ring 2 at the pipeline damage, which is convenient for the staff to perform a secondary detection on the site, thereby completing an oil and water well pipe flaw detection device.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil and water well pipe flaw detection device, comprising a detector (1) and a moving mechanism (5), wherein the moving mechanism (5) comprises a support block (501), a dovetail groove (502), a slide bar (503), a casing (504), a second return spring (505), a slider (506), a support plate (507), a servo motor (508), a connecting block (509) and a roller (510), characterized in that: A fixing ring (2) is fixedly connected to one side of the surface of the detector (1), a detection probe (3) is installed on the inner side of the fixing ring (2), a fixing mechanism (4) is arranged on the inner side of the fixing ring (2), and a moving mechanism (5) is arranged on one side of the surface of the fixing ring (2).

2. The oil and water well pipe flaw detection device according to claim 1, characterized in that: The fixing mechanism (4) comprises a screw rod (401), a first limiting groove (402), a first return spring (403), a rotating knob (404), a top plate (405), a fixing block (406), a second limiting groove (407), a third limiting groove (408) and a ball (409); a screw rod (401) passes through one side of the surface of the fixing ring (2); a first limiting groove (402) is provided inside the screw rod (401); a rotating knob (404) is welded to one end of the screw rod (401); ), a first return spring (403) is arranged inside the first limit groove (402), a top plate (405) is welded to one end of the first return spring (403), one end of the top plate (405) is embedded in the interior of the fixed block (406), a second limit groove (407) is opened on one side of the surface of the fixed block (406), a third limit groove (408) is opened on the other side of the surface of the fixed block (406), and a ball (409) is arranged inside the third limit groove (408).

3. The oil and water well pipe flaw detection device according to claim 2, characterized in that: One end of the first return spring (403) is welded to the screw rod (401) inside the first limiting groove (402), and the top plate (405) is embedded in the second limiting groove (407).

4. The oil and water well pipe flaw detection device according to claim 1, characterized in that: The moving mechanism (5) comprises a support block (501), a dovetail groove (502), a slide bar (503), a sleeve (504), a second return spring (505), a slider (506), a support plate (507), a servo motor (508), a connecting block (509) and a roller (510); a support block (501) is welded on one side of the surface of the fixing ring (2); a dovetail groove (502) is provided on one side of the surface of the support block (501); a slide bar (503) is welded inside the dovetail groove (502); The surface of the slide rod (503) is sleeved with a sleeve (504), the surface of the sleeve (504) is sleeved with a second return spring (505), one end of the sleeve (504) is welded with a slider (506), one side of the surface of the slider (506) is welded with a support plate (507), one side of the surface of the support plate (507) is installed with a servo motor (508), one end of the servo motor (508) is fixedly connected with a connecting block (509), and the other end of the connecting block (509) is installed with a roller (510).

5. The oil and water well pipe flaw detection device according to claim 4, characterized in that: The slide rod (503) and the sleeve (504) form a mutually sliding structure, one end of the second return spring (505) is welded to the support block (501) inside the dovetail groove (502), and the other end of the second return spring (505) is welded to the slider (506).

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