CN102087258B - Oil pipe detection device - Google Patents

Abstract

The invention discloses an oil pipe detection device, which includes a base, on which more than one multi-channel detection ring capable of adapting to changes in the diameter of the oil pipe is arranged, and the oil pipe enters the multi-channel detection ring for detection. The oil pipe detection device of the present invention can automatically adapt to the change of the outer diameter of the oil pipe to ensure the integrity of detection.

Description

Tubing detection device

technical field

The invention relates to an oil pipe inspection device, which is mainly used in an oil pipe inspection workshop, can meet the requirements for rapid inspection of oil pipes in large batches, and provides equipment guarantee for classification and waste of oil pipes.

Background technique

The detection device is an important part of the automatic detection line of oilfield tubing. It is mainly used to detect a large number of oilpipes required for oilfield production, and provide data reflecting the service status of the oilpipes, so as to realize the grading and judgment of the oilpipes.

The traditional oil pipe detection device is the oil pipe magnetic flux leakage detection device. When the oil pipe magnetic flux leakage detection device is working, it cannot automatically adapt to the change from the oil pipe body to the outer diameter of the coupling. It needs to avoid the oil pipe coupling, or remove the coupling before the oil pipe inspection. In addition, the oil pipe magnetic flux leakage The detection device cannot realize the detection of the thread of the oil pipe.

The oil pipe magnetic flux leakage detection device needs to avoid the coupling during the detection process, so that the oil pipe coupling cannot be detected, the integrity of the detection cannot be guaranteed, and the time required for detection is also increased, and the detection efficiency is reduced; and if the oil pipe is removed in advance If the coupling is used, it is easy to bring pollutants or impurities into the coupling, causing damage to the oil pipe thread. In addition, during the detection process of the oil pipe magnetic flux leakage detection device, the sensor probe is in direct contact with the oil pipe, and the wear is serious. The probe needs to be replaced in time, which will also reduce the detection efficiency.

Therefore, it is necessary to provide a novel oil pipe detection device to solve the above problems.

Contents of the invention

The object of the present invention is to provide an oil pipe detection device, which can automatically adapt to the change of the outer diameter of the oil pipe and ensure the integrity of the detection.

Above-mentioned purpose of the present invention can adopt following technical scheme to realize,

An oil pipe detection device, which includes a base on which more than one multi-channel detection ring capable of adapting to changes in the diameter of the oil pipe is arranged, and the oil pipe enters the multi-channel detection ring for detection.

In a preferred embodiment, each of the multi-channel detection rings includes a bracket ring and a plurality of parallelogram-shaped four-link sensor racks, and on the inner circumference of the bracket ring, the plurality of four-link sensor racks are in an equal shape. Angle distribution, and the inner ends of multiple four-link sensor frames jointly form a hole through which the oil pipe passes; each four-link sensor frame is provided with a sensor on the side close to the oil pipe.

In a preferred embodiment, each of the four-link sensor frame includes:

a bracket, the outer surface of the bracket is connected to the bracket ring;

Two connecting rods, the outer end of each connecting rod is rotatably connected to the inner surface of the bracket through an upper hinge, and a torsion spring is also installed between the upper hinge and the connecting rod;

A sensor box, the sensor box is connected between the inner ends of the two connecting rods, the sensor box is connected to the connecting rod through a lower hinge, and a sensor is arranged in the sensor box.

In a preferred embodiment, two ends of the sensor box are respectively provided with rollers, and the position of the rollers is closer to the inner side of the bracket ring than the lower surface of the sensor box.

In a preferred embodiment, the two ends of the support ring are respectively connected with plugs, and the plugs have a through hole, and the four-link sensor frame is located between the two plugs.

In a preferred embodiment, the multi-channel detection ring can adjust the horizontal position through the horizontal position adjustment component, and/or adjust the vertical position through the vertical position adjustment component; the horizontal position adjustment component is located between the base and Between the multi-channel detection rings, the vertical position adjustment assembly is arranged on the base.

In a preferred embodiment, the horizontal position adjustment assembly includes a positioning seat, the positioning seat is provided with a guide groove, and more than one sliding member is respectively embedded in the guide groove, and can be displaced along the guide groove; The top of each sliding member is arc-shaped, and is used for placing the multi-channel detection ring.

In a preferred embodiment, the slider includes a sliding block, a sliding plate is connected above the sliding block, and the sliding block matches with the guide groove and is displaceably embedded in the guide groove. A crescent plate is connected above the sliding plate, and the top of the crescent plate is arc-shaped.

In a preferred embodiment, at least one side of the positioning seat in its length direction is provided with a plurality of positioning pieces, so that the slider can be positioned at the positioning piece; the two ends of the positioning seat are respectively With trimmer.

In a preferred embodiment, the base includes a bottom plate and an adjustment plate arranged in parallel, and the vertical position adjustment assembly includes an adjustment screw and more than three guide rods, and the adjustment screws and guide rods are connected between the bottom plate and the adjustment plate. between; the adjusting screw is located in the center of the adjusting plate, and the guide rod is evenly distributed around the adjusting plate; rotating the adjusting screw can make the bottom plate move up and down along the guide rod, and drive The multi-channel detection ring adjusts the vertical position.

The feature and advantage of detection device of the present invention are:

1. During the detection process, the telescopic four-link sensor frame can make the roller close to the outer wall of the oil pipe through the flexible adjustment of the torsion spring, so that the distance between the sensor and the outer wall of the oil pipe is constant, and the flexibility of the torsion spring ensures the stability of the detection , to ensure the accuracy of data detection.

2. The retractable four-link structure can automatically adapt to the change of the outer diameter of the oil pipe during the inspection process, and can realize the comprehensive inspection of the oil pipe body, coupling and thread, ensuring the completeness of the oil pipe inspection.

3. The sensor is installed in the sensor box, thus avoiding the direct contact between the sensor and the oil pipe wall, eliminating the wear of the sensor and reducing the detection cost.

4. This self-adaptive detection device improves the detection efficiency, reduces the fluctuation of the oil pipeline transmission process, and ensures the accuracy of the detection data.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a three-dimensional schematic view of the oil pipe detection device of the present invention;

Fig. 2 is a schematic front view of the oil pipe detection device of the present invention;

3 is a schematic front view of a four-link sensor frame of the oil pipe detection device of the present invention;

Fig. 4 is a perspective cross-sectional schematic view of the multi-channel detection ring of the oil pipe detection device of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in Figures 1 to 4, the oil pipe detection device proposed by the present invention includes a base 1, and the base 1 is provided with more than one multi-channel detection ring 2 that can adapt to changes in the diameter of the oil pipe, and the oil pipe 3 enters the multi-channel detection ring. Ring, for tubing inspection. Among them, the multi-channel detection ring can select an appropriate number of channels according to the outer diameter of the oil pipe to be detected. Here, there are two multi-channel detection rings 2, which are respectively an eight-channel detection ring and a twelve-channel detection ring. It can meet the needs of conventional tubing inspection in oilfields.

The multi-channel detection ring 2 of the embodiment of the present invention can adapt to the diameter change of the oil pipe (including the inconsistency of the outer diameter of the oil pipe of different specifications, and the difference in the outer diameter of the same oil pipe body and the coupling part), thereby ensuring the integrity of the detection. That is, in one inspection, the oil pipe coupling, thread and pipe body can be fully inspected, the fluctuation of the oil pipe during the transmission process can be reduced, and the accuracy of the inspection data can be ensured.

According to one embodiment of the present invention, each multi-channel detection ring 2 includes a support ring 21 and a plurality of parallelogram-shaped four-link sensor frames 22. On the inner circumference of the support ring 21, a plurality of four-link sensor frames 22 are equiangularly distributed, and the inner ends of a plurality of sensor frames 22 jointly form a hole 23 through which the oil supply pipe 3 passes, as shown in Figure 2; each four-link sensor frame 22 is provided on the side close to the oil pipe 3 There are sensors.

Specifically, as shown in FIG. 3 , each four-link sensor frame 22 includes a bracket 221 , two links 222 and a sensor box 223 . The outer surface of the bracket 221 is connected to the bracket ring 21 , wherein the bracket 221 can be fixed on the bracket ring 21 , or form an integral structure with the bracket ring 21 . The outer end of each connecting rod 222 is rotatably connected to the inner surface of the bracket 221 through an upper hinge 224 , and a torsion spring 225 is installed between the upper hinge 224 and the connecting rod 222 . The sensor box 223 is connected between the inner ends of the two connecting rods 222, and the two ends of the sensor box 223 and the connecting rods 222 are respectively connected through the lower hinge 226, so that the sensor box 223 can follow the connecting rod 222 around the hinge 224 As the sensor box 223 moves, the diameters of the holes 23 formed at the inner ends of the plurality of sensor holders 22 can be increased or decreased to adapt to the change in diameter of the oil pipe. A sensor is arranged in the sensor box 223 , so that the sensor does not need to be in direct contact with the oil pipe 3 .

The two ends of the sensor box 223 are respectively provided with rollers 227, and the position of the rollers 227 can be slightly closer to the inner side of the bracket ring 21 relative to the lower surface of the sensor box 223, so that when the oil pipe 3 enters the sensor frame 22, it first contacts Roller 227.

The two ends of the support ring 21 are respectively connected with a blockage 24, the blockage 24 has a through hole 241, the through hole 241 corresponds to the hole 23 formed by the inner end of a plurality of sensor racks 22, the four connected The rod sensor holder 22 is located between the two plugs 24 . The plug 24 is used to protect the four-link sensor frame 22 .

When in use, the oil pipe 3 is transmitted into the multi-channel detection ring 2 along the direction coaxial with the support ring 22 (see the arrow direction in FIG. The thrust of the roller 227, the connecting rod 222 rotates under the drive of the roller 227, so that the oil pipe 3 can enter the multi-channel detection ring 2 smoothly; the rotation of the connecting rod 222 makes the torsion spring 225 under pressure, and at the same time the torsion spring 225 will give the connecting rod 222 reaction force, the connecting rod 222 under this reaction force, pushes the roller 227 to be close to the outer wall of the oil pipe 3, so that the distance between the sensor box 223 with the detection sensor and the outer wall of the oil pipe is constant, that is, the distance between the sensor and the outer wall of the oil pipe 3 is constant; , when the oil pipe coupling is encountered, the coupling also pushes the roller 227, and the connecting rod 222 drives the sensor box 223 to rotate at a larger angle to ensure that the coupling can enter the multi-channel detection ring 2. At the same time, under the reaction of the torsion spring 225, The distance between the sensor box 223 (or sensor) and the outer wall of the coupling is also constant, that is to say, the distance between the sensor and the outer wall of the oil pipe 3 is equal to the distance between the sensor and the outer wall of the coupling, and can be kept constant. Therefore, the multi-channel detection ring 2 It can automatically adapt to the change of tubing diameter in mass inspection. After one oil pipe is detected, under the action of the torsion spring 225, the four-link sensor frame 22 returns to the initial state, waiting for the detection of the next oil pipe.

Wherein, each four-link sensor frame 22 adopts a telescopic four-link parallelogram structure, which includes a torsion spring 225, which can flexibly adjust the telescopic state of the four-link sensor frame 22 by means of reaction force; The flexible adjustment function of the spring 225 ensures the stability of the transmission of the oil pipe 3, thereby further ensuring the accuracy of data detection. The sensor is arranged in the sensor box 223, which prevents the sensor from directly contacting the oil pipe wall, protects the sensor probe from wear, prolongs the service life of the sensor, and reduces the production cost.

According to one embodiment of the present invention, the multi-channel detection ring 2 can adjust the horizontal position through the horizontal position adjustment component, and/or adjust the vertical position through the vertical position adjustment component, so that the multi-channel detection ring 2 can be in the The specified working position; wherein, the horizontal position adjustment assembly is located between the base 1 and the multi-channel detection ring 2 , and the vertical position adjustment assembly is arranged on the base 1 .

As shown in Figure 1, the horizontal position adjustment assembly includes a positioning seat 41, the positioning seat 41 is provided with a guide groove 411, and more than one slider 42 (here there are two sliders 42) are respectively embedded in the guide groove 411 inside, and can be displaced along the guide groove 411; the top of each slider 42 is arc-shaped, and its arc is matched with the outer surface of the support ring of the multi-channel detection ring 2, so as to facilitate the placement of the multi-channel detection ring 2 and make the multi-channel detection ring 2 more convenient. The channel detection ring 2 cannot roll off the slider 42 .

Specifically, the slider 42 includes a sliding block 421, the sliding block 421 is matched with the guide groove 411, and is displaceably embedded in the guide groove 411, so that the sliding block 421 can smoothly horizontally displace in the guide groove 411; 421 is connected with sliding plate 422 above, and the top of sliding plate 422 is connected with crescent plate 423. Here, crescent plates 423 are respectively arranged at both ends of the length direction of sliding plate 422, and the top of each crescent plate 423 It is arc-shaped, and the multi-channel detection ring 2 is placed on the arc of the crescent plate 423, and moves horizontally in the guide groove 411 by means of the sliding block 421, so as to realize the adjustment of the horizontal position of the multi-channel detection ring 2.

Wherein, the positioning seat 41 is rectangular in plan view, and the two ends of the positioning seat 41 (referring to its width direction) are provided with trimmers respectively, so as to finely adjust the working position of the multi-channel detection ring 2; further Specifically, the fine-tuning member may include a fine-tuning plate 412 and a long bolt that can be rotatably connected to the fine-tuning plate 412. When the slider 42 is pushed to a designated working position, the long bolts on the fine-tuning plate 412 can be used to realize multi-channel Fine adjustment of the working position of the detection ring 2.

The positioning seat 41 is provided with a plurality of positioning pieces on at least one side in its length direction, so that the slider 42 can be positioned at the positioning piece, and the position of the general positioning piece is the working position of detection; further, The positioning seat 41 has a fixing hole 413 in the length direction, and the positioning member can be a bolt, for example. The positioning member can pass through the fixing hole 413, and can be pressed against the sliding block 421 after being rotated and locked, thereby limiting the horizontal displacement of the sliding block 421 , to make it positioned, if the positioning member is loosened, the sliding block 421 can still move horizontally in the guide groove 411 . After the working position of the sliding member 42 is adjusted and determined, it is positioned by the positioning member.

The base 1 includes a bottom plate 11 and an adjustment plate 12 arranged in parallel, and the vertical position adjustment assembly includes an adjustment screw 51 and more than three guide rods 52, and the adjustment screw 51 and the guide rods 52 are all connected to the bottom plate 11 and the adjustment between the plates 12; the adjustment screw 51 is located at the center of the adjustment plate 12, and the guide rods 52 are evenly distributed around the adjustment plate 12, where a guide is respectively arranged on the four corners of the adjustment plate 12 The rods 52 are four guide rods in total, and the guide rods 52 play a guiding role in the vertical position adjustment process; rotating the adjusting screw 51 can make the bottom plate 11 move up and down along the guide rods 52 .

Specifically, each guide rod 52 includes an outer rod 521 and an inner rod 522, and the inner rod 522 can be stretched in the outer rod 521; the adjustment plate 12 is fixedly arranged on the outer rod 521, that is, the outer rod 521 is equivalent to a leg frame, supporting the detection device The weight; there is a hole for the inner rod 522 to move up and down on the adjusting plate 12 . When the center height of the multi-channel detection ring 2 is not consistent with the center height of the oil pipe 3, the adjusting screw 51 can be adjusted to drive the bottom plate 11, the sliding part 42 and the multi-channel detection ring 2 to move up and down. At this time, the inner rod 522 is also inside the outer rod 521 Displace up and down, so that the multi-channel detection ring 2 reaches the height of its required working position.

In addition, the base 1 can be fixed on a fixed object such as the ground, for example, can be connected to the ground through anchor bolts. Wherein, the base 1 may further include a base plate 13, which is connected to the lower end of the outer rod 521, so as to facilitate the movement and transportation of the entire detection device.

According to one embodiment of the present invention, the detection device is also equipped with a rainproof cover 6 to protect the multi-channel detection ring 2 and the horizontal and vertical position adjustment components from rain erosion and ensure their normal operation.

The above descriptions are only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosed application documents without departing from the spirit and scope of the present invention.

Claims (8)

1. An oil pipe detection device, comprising a base, characterized in that, the base is provided with more than one multi-channel detection ring that can adapt to changes in the diameter of the oil pipe, and the oil pipe enters the multi-channel detection ring for detection The multi-channel detection ring includes a support ring and a plurality of parallelogram-shaped four-link sensor racks. On the inner circumference of the support ring, a plurality of four-link sensor racks are equiangularly distributed, and a plurality of four-link sensor racks The inner ends of the rod-type sensor frames jointly form a hole for the passage of the oil pipe; each four-bar-type sensor frame is provided with a sensor on one side close to the oil pipe; Each of the four-bar linkage sensor racks includes: a bracket, the outer surface of the bracket is connected to the bracket ring; Two connecting rods, the outer end of each connecting rod is rotatably connected to the inner surface of the bracket through an upper hinge, and a torsion spring is also installed between the upper hinge and the connecting rod; A sensor box, the sensor box is connected between the inner ends of the two connecting rods, the sensor box is connected to the connecting rod through a lower hinge, and a sensor is arranged in the sensor box. 2. The oil pipe detection device according to claim 1, wherein the two ends of the sensor box are respectively provided with rollers, and the position of the rollers is closer to the bracket ring than the lower surface of the sensor box inside. 3. The oil pipe detection device according to claim 1, wherein the two ends of the support ring are respectively connected with plugs, the plugs have a through hole, and the four-link sensor frame is located at two ends. between blocks. 4. The oil pipe detection device according to any one of claims 1-3, characterized in that, the multi-channel detection ring can adjust the horizontal position through the horizontal position adjustment component, and/or can adjust the vertical position through the vertical position adjustment component. Position adjustment: the horizontal position adjustment assembly is located between the base and the multi-channel detection ring, and the vertical position adjustment assembly is arranged on the base. 5. The oil pipe detection device according to claim 4, wherein the horizontal position adjustment assembly includes a positioning seat, and a guide groove is provided on the positioning seat, and more than one sliding member is respectively embedded in the guide groove inside, and can be displaced along the guide groove; the top of each sliding member is arc-shaped, and is used for placing the multi-channel detection ring. 6. The oil pipe inspection device according to claim 5, wherein the sliding member comprises a sliding block, a sliding plate is connected above the sliding block, and the sliding block is matched with the guide groove and can be displaced ground embedded in the guide groove, the upper part of the sliding plate is connected with a crescent plate, and the top of the crescent plate is arc-shaped. 7. The oil pipe detection device according to claim 6, characterized in that, at least one side of the positioning seat in its length direction is provided with a plurality of positioning pieces, so that the sliding piece can be positioned at the positioning pieces. Positioning; the two ends of the positioning seat are respectively provided with fine-tuning pieces. 8. The oil pipe inspection device according to claim 4, wherein the base includes a bottom plate and an adjustment plate arranged in parallel, the vertical position adjustment assembly includes an adjustment screw and more than three guide rods, and the adjustment screw and guide rods are connected between the base plate and the adjustment plate; the adjustment screw is located in the center of the adjustment plate, and the guide rods are evenly distributed around the adjustment plate; rotating the adjustment screw can make the base plate along the The guide rod moves up and down, and drives the multi-channel detection ring to adjust the vertical position.

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