Nondestructive testing device for welding seam of petroleum pipeline

Abstract

The utility model relates to a petroleum pipeline weld joint nondestructive testing device, and relates to the technical field of pipeline detection, the petroleum pipeline weld joint nondestructive testing device comprises a pipe body and a detection frame, the detection frame is provided with a detector for nondestructive testing of a pipe body weld joint, the detection frame rotates along the side wall of the pipe body through a rotating mechanism, and the rotating mechanism comprises a roller rotatably arranged on the detection frame, the roller is rotationally propped against the pipe body; the chain bypasses the pipe body and is rotationally arranged on the detection frame, and the detection frame can rotate on the pipe body along the chain; the driving assembly is arranged on the detection frame and used for driving the detection frame to rotate on the pipe body along the chain. The detection frame is rotationally installed on the outer side wall of the pipe body through the chain, the rolling wheels are rotationally connected with the side wall of the pipe in an abutting mode, the driving assembly drives the detection frame to rotate along the pipe body through the rolling wheels, the detection frame is made to rotate on the pipe body along the chain, then 360-degree nondestructive detection is conducted on the weld joint of the pipe body, and the detection efficiency of the petroleum weld joint is improved.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline detection, and in particular to a non-destructive detection device for oil pipeline welds. Background Art

[0002] Petroleum and natural gas engineering is an engineering technology field that uses scientific theories, methods, technologies and equipment to efficiently drill underground oil and gas resources, maximize and cost-effectively extract oil and gas from formations to the surface, and safely separate, measure and transport oil and gas. As my country develops, its attention to petroleum and natural gas engineering is also increasing. Among them, weld inspection for quality supervision of petroleum and natural gas engineering is an important part.

[0003] The weld inspection of oil pipelines usually adopts non-destructive testing technology. Different non-destructive flaw detectors are used according to different inspection needs, which can be ultrasonic flaw detectors, eddy current flaw detectors, etc.

[0004] Existing non-destructive testing of oil pipeline welds usually uses a manual handheld probe to move along the weld of the oil pipeline to achieve non-destructive testing of the oil pipeline welds. However, due to hand shaking or maintaining a single movement for a long time, it is easy for the probe to be difficult to align with the weld and it is easy to cause fatigue. Utility Model Content

[0005] In order to improve the detection efficiency of petroleum welds, the present application provides a non-destructive detection device for oil pipeline welds.

[0006] This application provides a non-destructive testing device for oil pipeline welds, which adopts the following technical solutions:

[0007] A nondestructive testing device for oil pipeline welds includes a pipe body, a testing frame, a detector for nondestructive testing of the pipe body welds, and the testing frame is rotated along the side wall of the pipe body by a rotating mechanism. The rotating mechanism includes:

[0008] A roller, the roller is rotatably arranged on the detection frame, and the roller and the tube body are rotatably abutted against each other;

[0009] A chain, the chain passing around the pipe body and being rotatably arranged on the detection frame, the detection frame being rotatable on the pipe body along the chain;

[0010] A driving assembly is provided on the detection frame and is used to drive the detection frame to rotate on the pipe body along the chain.

[0011] By adopting the above technical solution, the detection frame is rotatably installed on the outer wall of the pipe body through a chain, the roller and the side wall of the pipe rotate and abut against each other, and the drive assembly drives the detection frame to rotate along the pipe body through the roller, so that the detection frame rotates along the chain on the pipe body, thereby performing 360-degree non-destructive testing on the pipe body weld, thereby improving the detection efficiency of petroleum welds.

[0012] Furthermore, the driving assembly includes:

[0013] A driving gear, the driving gear being rotatably mounted on the detection frame and meshing with the chain;

[0014] A driving motor is provided on the detection frame and is used to drive the driving gear to rotate.

[0015] By adopting the above technical solution, the driving motor drives the driving gear to rotate, and the driving gear and the chain are engaged with each other, so that the detection frame rotates along the chain on the pipe body, thereby performing 360-degree non-destructive testing on the pipe body weld, thereby improving the detection efficiency of petroleum welds.

[0016] Furthermore, the detection frame is provided with an adjustment component for adjusting the chain slack, and the adjustment component includes:

[0017] An adjusting block is slidably arranged on the detection frame in a direction close to or away from the tube body, and the driving gear and the driving motor are both arranged on the adjusting block;

[0018] The telescopic rod is arranged on the detection frame and is used to drive the adjustment block to move in a direction close to or around the detection frame.

[0019] By adopting the above technical solution, after the chain is wrapped around the pipe body to form a complete ring, due to manual operation problems during the installation process, the chain's pressure effect on the detection frame is poor. When the telescopic rod is extended, the adjustment block is driven away from the side wall of the pipe body, so that the chain is pressed against the side wall of the pipe body, thereby tightening the chain on the side wall of the pipe.

[0020] Furthermore, a through slot is provided on the detection frame for the chain to pass through, and steering wheels are provided on the two opposite side walls of the through slot. The chain is engaged with the driving gear after being steered by the steering wheels.

[0021] By adopting the above technical solution, steering wheels are fixedly installed on the opposite side walls of the through slot, the rotating part of the steering wheel abuts against the chain, and the chain engages with the driving gear after being turned by the steering wheel, thereby reducing the probability of friction between the chain and the side walls of the through slot.

[0022] Furthermore, the detection frame is provided with a control mechanism for controlling the distance between the detector and the tube body, and the control mechanism includes:

[0023] A sliding plate is provided on the detection frame for sliding movement in a direction close to or away from the tube body, and the detector is provided on the sliding plate and close to the tube body;

[0024] A screw rod, which is rotatably mounted on the detection frame and is threadably connected to the sliding plate. The screw rod rotates and is used to drive the sliding plate to slide;

[0025] A locking assembly is provided on the detection frame and locks the rotation of the screw rod.

[0026] By adopting the above technical solution, the screw rotates and drives the sliding plate to move on the detection frame to adjust the distance from the detector to the outer wall of the pipeline. The screw is locked by the locking assembly to prevent the position of the sliding plate from slipping during use.

[0027] Furthermore, the locking assembly includes:

[0028] A worm gear, the worm gear being arranged on the lead screw;

[0029] A worm, the worm being rotatably mounted on the detection frame, the worm being meshed with the worm wheel and self-locking in reverse direction;

[0030] A turntable is arranged on the worm and is convenient for driving the worm to rotate.

[0031] By adopting the above technical solution, the turntable drives the worm to rotate, and the worm and the worm wheel engage with each other, thereby driving the lead screw to rotate. The worm and the worm wheel are self-locked in reverse, so that only the worm can drive the worm wheel to rotate, and the worm wheel cannot drive the worm to rotate, thereby locking the lead screw.

[0032] Furthermore, a handle is eccentrically provided on the turntable, and the handle is threadedly provided on the turntable, and the handle is used to drive the turntable to rotate.

[0033] By adopting the above technical solution, the handle is threadedly connected to the turntable, and the staff drives the turntable to rotate through the handle eccentrically installed on the turntable, thereby facilitating the rotation of the turntable and adjusting the distance from the detector to the outer wall of the pipeline.

[0034] Furthermore, an electromagnet is provided on the detection frame, and the electromagnet and the tube body attract each other.

[0035] By adopting the above technical solution, when the electromagnet is energized, the electromagnet and the tube body attract each other, thereby making the detection frame firmly abut against the side wall of the tube body.

[0036] In summary, this application includes at least one of the following beneficial technical effects:

[0037] The detection frame is rotated and installed on the outer wall of the pipe body through a chain. The telescopic rod is extended and retracted to adjust the slack of the chain, so that the roller installed on the detection frame abuts against the side wall of the pipe. The turntable is rotated to rotate the lead screw to adjust the distance between the detector and the pipe body weld. The drive motor drives the drive gear to rotate. The drive gear and the chain are engaged with each other, so that the detection frame rotates along the chain on the pipe body, thereby performing 360-degree non-destructive testing on the pipe body weld, thereby improving the detection efficiency of petroleum welds. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic structural diagram of the detection device of the present application;

[0039] Figure 2 is a schematic diagram of the structure of the detection frame of the present application, wherein a portion of the detection frame is cut away;

[0040] Figure 3 This is a schematic diagram of the control mechanism structure of the present application, in which the detection frame is not shown.

[0041] Figure numerals: 1. tube body; 2. detection frame; 21. through slot; 211. steering wheel; 3. detector; 4. rotating mechanism; 41. roller; 42. chain; 43. driving assembly; 431. driving gear; 432. driving motor; 5. adjusting assembly; 51. adjusting block; 52. telescopic rod; 53. guide column; 6. control mechanism; 61. sliding plate; 62. screw; 63. locking assembly; 631. worm gear; 632. worm; 633. turntable; 7. handle; 8. electromagnet. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-3 This application is described in further detail.

[0043] The embodiment of the present application discloses a nondestructive testing device for oil pipeline welds.

[0044] Reference Figure 1 and Figure 2 A nondestructive testing device for oil pipeline welds includes a pipe body 1, a testing frame 2, a detector 3 for nondestructive testing of the weld of the pipe body 1 is provided on the testing frame 2, and the testing frame 2 rotates along the side wall of the pipe body 1 through a rotating mechanism 4.

[0045] Reference Figure 1 and Figure 2The pipe bodies 1 are connected to each other by welding to form a whole. The weld on the pipe body 1 is a circular ring structure. When performing non-destructive testing on the pipeline weld, it is necessary to rotate the detector 3 360 degrees around the pipe body 1 to perform non-destructive testing on the weld; the rotating mechanism 4 includes a roller 41, a chain 42 and a driving assembly 43. The roller 41 is rotatably installed on the lower surface of the detection frame 2, and the roller 41 and the pipe body 1 rotate and abut against each other; the chain 42 bypasses the pipe body 1 and is rotatably set on the detection frame 2. The chain 42 is connected end to end and forms a complete ring. The detection frame 2 rotates and abuts against the outer wall of the pipe body 1 through multiple sets of rollers 41. The detection frame 2 can rotate 360 ​​degrees on the pipe body 1 along the chain 42 through multiple sets of rollers 41 to perform non-destructive testing on the weld of the pipe body 1.

[0046] Reference Figure 1 and Figure 2 The cam 52 is fixedly mounted on the upper surface of the inspection frame 2, and the piston rod of the cam 52 is fixedly mounted on the lower surface of the inspection frame 2 to guide the cam 51. The chain 42 is slidably mounted on the cam 51; the cam 52 is fixedly mounted on the upper surface of the inspection frame 2, and the piston rod of the cam 52 is fixedly mounted on the lower surface of the inspection frame 2 to guide the cam 51. The cam 42 is slidably mounted on the cam 51; the cam 52 is fixedly mounted on the upper surface of the inspection frame 2, and the piston rod of the cam 52 is fixedly mounted on the lower surface of the inspection frame 2 to guide the cam 51.

[0047] Reference Figure 1 and Figure 2 The driving assembly 43 is arranged on the detection frame 2. The driving assembly 43 is used to drive the detection frame 2 to rotate along the chain 42 on the side wall of the tube body 1. The driving assembly 43 includes a driving gear 431 and a driving motor 432. The driving gear 431 is rotatably mounted on the upper surface of the adjusting block 51. The axis of the driving gear 431 is parallel to the axis of the tube body 1. The driving gear 431 and the chain 42 are meshed with each other. When the driving gear 431 rotates, it is meshed with the chain 42 to drive the detection frame 2 to rotate along the chain 42 on the tube body 1; the driving motor 432 is fixedly mounted on the adjusting block 51, and the output shaft of the driving motor 432 is coaxially fixedly mounted with the driving gear 431. The driving motor 432 is used to drive the driving gear 431 to rotate, thereby driving the detection frame 2 to rotate along the chain 42 on the tube body 1.

[0048] Reference Figure 1 and Figure 2A through slot 21 is provided on the detection frame 2 for the chain 42 to pass through. One end of the chain 42 passes through one side of the through slot 21 and engages with the driving gear 431. Then the other end passes through the other side of the through slot 21 and bypasses the tube body 1 to form a ring. In order to reduce the probability of friction between the chain 42 and the side walls of the through slot 21, two sets of steering wheels 211 are fixedly installed on the opposite side walls of the through slot 21. The rotating part of the steering wheel 211 abuts against the chain 42. After the chain 42 is turned by the steering wheel 211, it engages with the driving gear 431.

[0049] Reference Figure 2 and Figure 3 , a control mechanism 6 for controlling the distance between the detector 3 and the side wall of the tube body 1 is provided on the detection frame 2, and the control mechanism 6 includes a sliding plate 61, a screw rod 62 and a locking assembly 63. The sliding plate 61 is slidably mounted on the detection frame 2 in the direction close to or away from the tube body 1, and the detector 3 is fixedly mounted on the side of the sliding plate 61 close to the tube body 1. The detector 3 is used to perform non-destructive testing on the weld of the tube body 1; the screw rod 62 is rotatably mounted on the detection frame 2, and the screw rod 62 is threadedly connected to the sliding plate 61. The screw rod 62 rotates and drives the sliding plate 61 to slide, thereby controlling the distance between the detector 3 and the outer wall of the tube body 1, so as to improve the detection accuracy of the detector 3. Test effect; the locking assembly 63 is arranged on the detection frame 2 and locks the rotation of the screw rod 62. The locking assembly 63 includes a worm wheel 631, a worm 632 and a turntable 633. The worm wheel 631 is coaxially fixed on the screw rod 62, and the worm 632 is rotatably installed on the detection frame 2. The worm 632 and the worm wheel 631 are engaged with each other. The worm 632 can drive the worm wheel 631 to rotate, and then drive the screw rod 62 to rotate. The worm 632 and the worm wheel 631 are reversely self-locked, so that only the worm 632 can drive the worm wheel 631 to rotate, and the worm wheel 631 cannot drive the worm 632 to rotate, so as to lock the screw rod 62.

[0050] Reference Figure 2 and Figure 3 A handle 7 is eccentrically mounted on the turntable 633. The handle 7 is provided with an external thread. The handle 7 is mounted on the turntable 633 by thread locking. The handle 7 facilitates the staff to rotate the turntable 633. An electromagnet 8 is fixedly mounted on the lower surface of the detection frame 2. When the electromagnet 8 is energized, the electromagnet 8 and the tube body 1 attract each other, thereby making the detection frame 2 firmly abut against the side wall of the tube body 1.

[0051] Reference Figure 1 and Figure 2When in use, one end of the chain 42 is meshed with the driving gear 431, the chain 42 passes through the through slot 21 and bypasses the pipe body 1 to return to the through slot 21, and is fixedly connected to the other end of the chain 42, thereby forming a complete loop, so as to facilitate the subsequent activation of the telescopic rod 52, and the telescopic rod 52 is extended to the state where the chain 42 is tightened, thereby tightening the chain 42 on the side wall of the pipe, and the detection frame 2 is rotated and abutted against the outer wall of the pipe through multiple sets of rollers 41; then the handle 7 is rotated The turntable 633 causes the screw rod 62 to rotate, thereby adjusting the distance between the sliding plate 61 and the outer wall of the pipe body 1, so that the detector 3 is located at a position convenient for detecting the weld of the pipe body 1; finally, the drive motor 432 is started, and the drive motor 432 drives the drive gear 431 to rotate, and the drive gear 431 engages with the chain 42, so that the detection frame 2 rotates on the pipe body 1 along the chain 42, thereby performing 360-degree non-destructive testing on the weld of the pipe body 1, thereby improving the detection efficiency of petroleum welds.

[0052] The working principle of the embodiment of this application is as follows:

[0053] The detection frame 2 is rotatably installed on the outer wall of the pipe body 1 through the chain 42. The telescopic rod 52 is extended and retracted to adjust the slackness of the chain 42, so that the roller 41 installed on the detection frame 2 abuts against the side wall of the pipeline. The turntable 633 is rotated to rotate the screw 62 to adjust the distance between the detector 3 and the weld of the pipe body 1. The drive motor 432 drives the drive gear 431 to rotate. The drive gear 431 and the chain 42 are engaged with each other, so that the detection frame 2 rotates along the chain 42 on the pipe body 1, thereby performing 360-degree non-destructive testing on the weld of the pipe body 1, thereby improving the detection efficiency of petroleum welds.

[0054] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A nondestructive testing device for oil pipeline welds, characterized in that: The invention comprises a pipe body (1), a detection frame (2), a detector (3) for non-destructive detection of the weld of the pipe body (1) being arranged on the detection frame (2), the detection frame (2) being rotated along the side wall of the pipe body (1) by a rotating mechanism (4), the rotating mechanism (4) comprising: A roller (41), the roller (41) being rotatably arranged on the detection frame (2), the roller (41) and the tube body (1) being rotatably abutted against each other; A chain (42), the chain (42) passing around the tube body (1) and being rotatably arranged on the detection frame (2), the detection frame (2) being rotatable on the tube body (1) along the chain (42); A driving assembly (43) is arranged on the detection frame (2) and is used to drive the detection frame (2) to rotate on the tube body (1) along the chain (42).

2. A nondestructive testing device for oil pipeline welds according to claim 1, characterized in that: The driving assembly (43) comprises: A driving gear (431), the driving gear (431) being rotatably disposed on the detection frame (2), the driving gear (431) being meshed with the chain (42); A driving motor (432), wherein the driving motor (432) is arranged on the detection frame (2) and is used to drive the driving gear (431) to rotate.

3. A nondestructive testing device for oil pipeline welds according to claim 2, characterized in that: The detection frame (2) is provided with an adjustment component (5) for adjusting the slack of the chain (42), and the adjustment component (5) comprises: an adjusting block (51), the adjusting block (51) being slidably disposed on the detection frame (2) in a direction approaching or moving away from the tube body (1), the driving gear (431) and the driving motor (432) being both disposed on the adjusting block (51); A telescopic rod (52) is arranged on the detection frame (2) and is used to drive the adjustment block (51) to move in a direction approaching or in a direction around the detection frame (2).

4. A nondestructive testing device for oil pipeline welds according to claim 3, characterized in that: The detection frame (2) is provided with a through slot (21) for facilitating the passage of the chain (42), and steering wheels (211) are provided on opposite side walls of the through slot (21). The chain (42) is meshed with the driving gear (431) after being steered by the steering wheels (211).

5. The nondestructive testing device for oil pipeline welds according to claim 1 is characterized in that: The detection frame (2) is provided with a control mechanism (6) for controlling the distance between the detector (3) and the tube body (1), and the control mechanism (6) comprises: a sliding plate (61), the sliding plate (61) being slidably arranged on the detection frame (2) in a direction approaching or moving away from the tube body (1), the detector (3) being arranged on the sliding plate (61) and close to the tube body (1); a screw rod (62), the screw rod (62) being rotatably disposed on the detection frame (2) and being threadedly connected to the sliding plate (61), the screw rod (62) being rotated and used to drive the sliding plate (61) to slide; A locking assembly (63), wherein the locking assembly (63) is arranged on the detection frame (2) and locks the rotation of the screw rod (62).

6. The nondestructive testing device for oil pipeline welds according to claim 5, characterized in that: The locking assembly (63) comprises: A worm wheel (631), wherein the worm wheel (631) is arranged on the screw rod (62); A worm (632), the worm (632) being rotatably disposed on the detection frame (2), the worm (632) and the worm wheel (631) being meshed with each other and self-locking in a reverse direction; A rotating disk (633), wherein the rotating disk (633) is arranged on the worm (632) and is convenient for driving the worm (632) to rotate.

7. The nondestructive testing device for oil pipeline welds according to claim 6 is characterized in that: A handle (7) is eccentrically arranged on the rotating disk (633); the handle (7) is threadedly arranged on the rotating disk (633); and the handle (7) is used to drive the rotating disk (633) to rotate.

8. The nondestructive testing device for oil pipeline welds according to claim 1 is characterized in that: An electromagnet (8) is provided on the detection frame (2), and the electromagnet (8) and the tube body (1) attract each other.

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