CN106442578B - Double track portable pipeline digital weld inspection device - Google Patents

Abstract

A kind of two-orbit portable pipe digitlization detection device.Mainly for solve the problems, such as existing pipe welding line detecting device inconvenience dismounting, walking foot and track it is easy because equipment is overweight and damage and to the degree of equipment protection it is low.It is characterized by: the device is constituted after being connected by imaging plate clamping unit, driving unit, X-ray clamping unit, left connecting rod, right connecting rod, main orbit with secondary track；Imaging plate clamping unit includes imaging board rack, traveling wheel and imaging plate fender bracket；Driving unit includes retarder, motor, back plate, foreboard, handle, sprocket wheel and traveling wheel；Retarder is fixed on back plate；X-ray clamping unit includes X-ray fixed frame, X-ray rack and traveling wheel；Traveling wheel passes through two bolts respectively and is fixed in X-ray rack；Main orbit is made of main orbit and chain；Secondary track is fixed by the protrusion and pipeline of bottom, and the two is concentric；Driving unit is between imaging plate clamping unit and X-ray clamping unit.

Description

Double track portable pipeline digital weld inspection device

technical field

The invention relates to a pipeline weld detection device applied in the field of oil and gas transportation.

Background technique

Once an accident occurs in the oil transportation pipeline, it will not only cause huge economic losses, but also cause immeasurable harm to society and the environment. Its repair work is not only difficult, but also expensive. Because the damage of circular storage tanks and pipelines is mainly concentrated on the damage of welds, but because pipeline weld inspections have always been carried out by more traditional manual inspection methods, there is no proposed method for pipeline weld inspections that can realize inspection machinery automation. The fast and effective detection method and the matching device are provided, and the existing detection device has a complex structure and is not easy to assemble and disassemble, resulting in low detection efficiency. At the same time, the X-rays used in the detection will cause certain damage to the physical health of the detection workers. Therefore, it is of extremely important practical significance to develop a device to improve the efficiency of pipeline weld inspection and reduce its risk. The equipment used now has a series of problems such as inconvenient installation, inconvenient disassembly and damage during the detection process. Most of the technologies used in China are ray detection on the outside of the tube wall, but the equipment used is not reliable enough, the flaw detection efficiency is low, and there are potential safety hazards.

SUMMARY OF THE INVENTION

In order to solve the technical problems mentioned in the background art, the present invention provides a dual-track portable pipeline digital weld inspection device, which is connected by a C-shaped beam and ensures the relative position. The detection device can detect 360° flaws of oil and gas pipelines, and realize the rapid disassembly and assembly of the flaw detector device and the imaging plate device, which has a certain protective effect on the walking wheels and the main and auxiliary rails, and improves the inspection efficiency of the existing pipeline welds. The current pipeline weld inspection technology provides an accurate, safe and lightweight solution, and provides reliable protection for equipment such as flaw detectors and imaging boards.

The technical scheme of the present invention is as follows: the dual-track portable pipeline digital weld detection device includes an imaging plate clamping unit, a driving unit, an X-ray clamping unit, a left connecting rod, a right connecting rod, a main track and a sub-track, which are The unique features are:

The imaging plate clamping unit includes an imaging plate frame, traveling wheels and an imaging plate protection frame; wherein the imaging plate frame is the body of the entire imaging plate clamping unit, and all parts and structures in the unit are installed on it; The imaging plate clamping unit includes eight traveling wheels, which are all fixed on the imaging plate frame with two bolts; the imaging plate protection frame has two quick-release structures, the upper hook and the lower hook, when connected, the upper hook and the lower hook are respectively Align the upper and lower ports on the imaging plate frame, insert them, and then screw a bolt into the fixing hole on the imaging plate protection frame to achieve the relative fixation of the imaging plate protection frame and the imaging plate frame;

The drive unit includes a reducer, a motor, a rear plate, a front plate, a handle, a sprocket and a traveling wheel; wherein, the entire driving unit includes four traveling wheels, two of these traveling wheels are fixed on the front plate, and the remaining two are One is fixed on the rear plate; the reducer is fixed on the rear plate, the motor is fixed on the input port of the reducer with bolts, and the sprocket is fixed on the output shaft of the reducer, so that the rotation of the motor will be output to the chain after passing through the reducer. On the wheel, the sprocket rotates; the end of the handle is a lead screw. When the handle rotates, it is relatively stationary with the back plate, and the front plate is installed with a screw nut. When the handle rotates, the front plate moves back and forth along the lead screw of the handle. , adjust the distance between the front plate and the rear plate, and each of the front plate and the rear plate is equipped with a pair of walking wheels. When the handle is rotated, the distance between the two pairs of walking wheels will be realized, so as to realize the disassembly and assembly of the drive device from the main track. Purpose;

The X-ray clamping unit includes an X-ray fixing frame, an X-ray frame and a traveling wheel; wherein, the X-ray clamping unit includes four traveling wheels, and the four traveling wheels are respectively fixed on the X-ray frame by two bolts ; The X-ray fixing frame has four hooks and two X-ray fixing holes, and the X-ray frame has four hanging holes. When the X-ray fixing frame and the X-ray frame are installed, the four hooks of the X-ray fixing frame are inserted respectively. in the four hanging holes of the X-ray frame, and then screw bolts into the fixing holes to fix the X-ray fixing frame and the X-ray frame;

The main rail is composed of a main rail and a chain; the main rail and the pipe are coaxial, and the two are relatively fixed by a protrusion, and the chain and the main rail are welded and fixed; the auxiliary rail passes through the protrusion and the pipe at the bottom. fixed, and the two are concentric;

The driving unit is located between the imaging plate clamping unit and the X-ray clamping unit, and a left connecting rod is used for connection between the driving unit and the imaging plate clamping unit, wherein the left connecting rod is an arc-shaped rod-shaped structure, and two ends are respectively opened with a left connecting rod. Bolt holes, the bolt holes at the left and right ends of the left connecting rod are respectively inserted with bolts and connected with the imaging plate clamping unit and the driving unit respectively; the right connecting rod and the left connecting rod have the same structure, with bolt holes on both sides, Bolts are inserted into the left and right ends of the connecting rod respectively, and are respectively connected and fixed with the driving unit and the X-ray clamping unit;

The imaging plate clamping unit, the driving unit, the X-ray clamping unit, the left connecting rod and the right connecting rod are connected to form an annular whole; the main rail and the sub-rail are two independent rails, which are respectively fixed relative to the pipeline, and the imaging plate is clamped The unit, driving unit, and X-ray clamping unit all move in the circumferential direction along the main track. The driving unit, X-ray clamping unit and the sub-track are not in contact. The structure of the imaging plate clamping unit and the driving unit and X-ray The clamping units are not the same. The imaging plate clamping unit has 8 traveling wheels, four in a group, a total of two groups. The group is close to the sub-track, clamps the sub-track, and moves circumferentially along the sub-track. The sub-track plays a stabilizing and auxiliary role for the imaging plate clamping unit, and the sub-track has no contact with the driving unit and the X-ray clamping unit. .

The present invention has the following beneficial effects: firstly, the detection device has two main rails and auxiliary rails, wherein a chain is installed on the main rail, which can be used to carry the driving force of the whole device, which is the same as the traditional detection device, but in the traditional There is only the main track in the pipeline weld detection device of the present invention, and the imaging plate is offset on the main track, showing a state of cantilever beam, and the stability is very poor. The sub-track adopted in the present invention enables the imaging plate to be supported at both ends , the stability is greatly enhanced; secondly, for the installation of the drive device and the main track, a new installation scheme is proposed, which can realize the rapid disassembly and assembly of the drive device and the track by rotating the screw handle, which greatly improves the work efficiency; thirdly, for flaw detection The installation of the instrument, imaging plate and fixture provides a new type of quick installation scheme, which facilitates the disassembly and assembly of the equipment and improves work efficiency; finally, the driving method of the device adopts the meshing driving method instead of the previous friction driving method, which shows In order for the chain to be fixedly connected to the main track and to be stationary relative to the entire pipeline, the driving wheel of the driving device adopts a sprocket, which is meshed with the above-mentioned chain, and drives the sprocket to rotate through the output rotation of the reducer, so as to realize the sprocket and the chain. Because the chain, the main track and the pipeline are relatively static, the rotation of the sprocket will drive the entire device to make a circumferential motion around the pipeline, which can provide a greater driving force than the previous friction driving method, and finally Stably drives the entire device to move circumferentially around the pipe.

Description of drawings:

FIG. 1 is a schematic top view of the structure of the patent of the present invention.

Figure 2 is a schematic diagram of the three-dimensional structure of the patent of the present invention.

FIG. 3 is a schematic diagram of the combined structure of the imaging plate clamping unit described in the patent of the present invention.

FIG. 4 is a schematic structural diagram of the imaging plate clamping unit described in the patent of the present invention in a separated state.

FIG. 5 is a schematic structural diagram of the X-ray clamping unit described in the patent of the present invention.

FIG. 6 is a schematic diagram of the structure of the drive unit.

In the figure, 1-imaging plate clamping unit, 2-drive unit, 3-X-ray clamping unit, 4-left connecting rod, 5-right connecting rod, 6-pipeline, 7-main track, 8-auxiliary track, 9 -chain, 10-imaging plate rack, 11-travel wheel, 12-imaging plate protection frame, 13-upper hook, 14-lower hook, 15-fixing hole, 16-upper port, 17-lower port, 18-X-ray Fixing frame, 19-X-ray fixing hole, 20-Hook, 21-Hanging hole, 22-X-ray frame, 23-Motor, 24-Reducer, 25-Rear plate, 26-Front plate, 27-Sprocket, 28 - Handle.

Detailed ways:

The present invention will be further described below in conjunction with the accompanying drawings:

As shown in Figures 1 and 2, the whole device is composed of an imaging plate clamping unit 1, a driving unit 2, an X-ray clamping unit 3, a left connecting rod 4, a right connecting rod 5, a main rail 7 and a secondary rail 8. The drive unit 2 is connected with the imaging plate clamping unit 1 and the X-ray clamping unit 3 by means of pins through the left connecting rod 4 and the right connecting rod 5 respectively, so that the circumferential drive generated by the driving unit 2 can be transmitted to the The imaging plate holds the unit 1 and the X-ray holding unit 3, so that the three can move circumferentially around the pipeline to perform the action of welding seam detection.

As shown in FIGS. 3 and 4 , the imaging plate clamping unit 1 includes an imaging plate frame 10 , a traveling wheel 11 and an imaging plate protection frame 12 . The imaging plate frame 10 is the main body of the entire imaging plate clamping unit 1 , and all its parts and structures are installed on it; the imaging plate clamping unit 1 includes eight traveling wheels 11 , and two traveling wheels 11 are used. Bolts are fixed to the imaging plate frame 10, four of which are clamped on the main rail 7, and the remaining four are clamped on the sub-rail 8; the imaging plate protection frame 12 has two quick-release structures, an upper hook 13 and a lower hook 14, for installation When the upper hook 13 and the lower hook 14 are aligned with the upper port 16 and the lower port 17 on the imaging plate frame 10, they are inserted, and then a bolt is screwed into the fixing hole 15 on the imaging plate protection frame 12 to realize imaging. The relative fixation of the plate protection frame 12 and the imaging plate frame 10 .

As shown in FIG. 5 , the X-ray clamping unit 3 includes an X-ray fixing frame 18 , an X-ray frame 22 and a traveling wheel 11 . The X-ray clamping unit 3 includes four traveling wheels 11 , and the four traveling wheels are respectively fixed on the X-ray frame 22 by two bolts; the X-ray fixing frame 18 has four hooks 20 and two X-ray fixing holes 19 The X-ray gantry 22 has four hanging holes 21. When the X-ray fixing frame 18 and the X-ray gantry 22 are installed, the four hooks 20 of the X-ray fixing frame 18 are respectively inserted into the four hanging holes of the X-ray gantry 22. 21, and then screw bolts into the fixing holes 19 to fix the X-ray fixing frame 18 and the X-ray gantry 22.

As shown in FIG. 6 , the drive unit 2 includes a reducer 24 , a motor 23 , a rear plate 25 , a front plate 26 , a handle 28 , a sprocket 27 and a traveling wheel 11 . The entire drive unit 2 includes four traveling wheels 11, two of which are fixed to the front plate 26, and the other two are fixed to the rear plate 25; the reducer is fixed to the rear plate, and the motor is fixed to the input of the reducer with bolts port, and the sprocket is fixed on the output shaft of the reducer, which means that the rotation of the motor will be output to the sprocket after passing through the reducer, so that the sprocket rotates; the end of the handle is a lead screw, when the handle rotates, It is relatively stationary with the rear plate, and the front plate is installed with a screw nut. When the handle rotates, the front plate moves forward and backward along the lead screw of the handle to adjust the distance between the front plate and the rear plate, and a pair of the front plate and the rear plate are each installed. Traveling wheels, when the handle is rotated, the distance between the two pairs of traveling wheels will be realized, and finally the purpose of disassembling and assembling the drive unit from the main track 7 is achieved;

As shown in Fig. 2, the main track 7 consists of a track and a chain. The main rail and the pipe 6 are coaxial, and the two are relatively fixed by means of protrusions, and the chain 9 and the rail are welded and fixed.

The drive unit 2 is located between the imaging plate clamping unit 1 and the X-ray clamping unit 3, and the left connecting rod 4 is used for connection between the driving unit 2 and the imaging plate clamping unit 1, and the left connecting rod 4 is in the shape of an arc rod. In the structure, the two ends are respectively provided with bolt holes, and the bolt holes at the left and right ends of the left connecting rod 4 are respectively inserted with bolts and are respectively connected and fixed with the imaging plate clamping unit 1 and the driving unit 2; the right connecting rod 5 and the left connecting rod 4 have The same structure has bolt holes on both sides, and the left and right ends of the right connecting rod 5 are respectively inserted with bolts and are connected and fixed with the driving unit 2 and the X-ray clamping unit 3 respectively;

The imaging plate clamping unit 1, the driving unit 2, the X-ray clamping unit 3, the left connecting rod 4 and the right connecting rod 5 are connected to form an annular whole; the main rail 7 and the auxiliary rail 8 are two independent rails, which are respectively connected with the pipeline. 6 Relatively fixed, the imaging plate clamping unit 1, the driving unit 2, and the X-ray clamping unit 3 all move in the circumferential direction along the main rail 7, and the driving unit 2, the X-ray clamping unit 3 and the auxiliary rail 8 are not Contact, the structure of the imaging plate clamping unit 1 is different from the driving unit 2 and the X-ray clamping unit 3. The imaging plate clamping unit 1 has 8 traveling wheels 11, four in a group, a total of two groups, close to the main One group of the rails 7 is responsible for clamping the main rail 7 and making a circular motion along the main rail 7, the other group is close to the sub rail 8, clamps the sub rail 8, and performs circumferential movement along the sub rail 8, the sub rail 8 Playing the role of stabilization and assistance to the imaging plate clamping unit 1 , the auxiliary rail 8 has no contact with the driving unit 2 and the X-ray clamping unit 3 .

The following shows how to use the main and sub-tracks:

The main track 7 and the auxiliary track 8 are used in this equipment, wherein the fixed chain 9 on the main track can realize the meshing with the sprocket 27 on the driving unit to drive the movement of the whole device, and the auxiliary track 8 is an auxiliary track, which is connected with the imaging plate. Used in conjunction with the clamping unit 1, the imaging plate clamping unit includes eight traveling wheels, which are all fixed to the imaging plate frame with two bolts, four of which are clamped on the main rail, and the remaining four are clamped on the imaging plate frame. In this way, the imaging plate clamping unit can be fixed by using the traveling wheel to clamp the rail at both ends, which can make the imaging plate clamping unit more stable and safe.

The specific installation and removal process of the drive unit is given below:

When the handle 28 is rotated, the front plate moves back and forth along the lead screw of the handle to adjust the distance between the front plate and the rear plate, and a pair of walking wheels are installed on the front plate and the rear plate. When the handle is rotated, two pairs of walking wheels are realized. The distance between them is increased, so that the drive unit can be removed from the track; when it needs to be installed, align the travel wheel of the drive unit with the main track, and then rotate the handle in the opposite direction, the distance between the front plate and the rear plate is reduced, and the two The distance between the walking wheels is also reduced, and finally the two pairs of walking wheels clamp the main track and the installation is completed.

The quick installation method of the X-ray holder is given below:

The X-ray fixing frame has four hooks and two X-ray fixing holes, and the X-ray frame has four hanging holes. When the X-ray fixing frame and the X-ray frame are installed, the four hooks of the X-ray fixing frame are inserted into the X-ray fixing frame respectively. into the four hanging holes of the ray rack, and then screw bolts into the fixing holes to fix the X-ray rack and the X-ray rack.

Finally, the driving method of the whole device is given:

The driving method of the device adopts a friction driving method different from the previous one. The chain 9 is fixedly connected with the main track 7 and is relatively stationary with the pipeline 6. The driving wheel of the driving unit 2 is set as a chain wheel 27, which is connected to the chain. 9 are meshed, and the sprocket 27 is driven to rotate by the output rotation of the reducer 24, so as to realize the meshing transmission of the sprocket 27 and the chain 9, because the chain 9, the main track 7 and the pipe 6 are relatively static, so the rotation of the sprocket 27 The whole device will be driven to move circumferentially around the pipeline 6 , which can provide a larger driving force than the previous friction driving method, and finally drive the entire device to move circumferentially around the pipeline stably.

Claims (1)

1. A dual-track portable pipeline digital weld inspection device, comprising an imaging plate clamping unit (1), a driving unit (2), an X-ray clamping unit (3), a left connecting rod (4), a right connecting rod ( 5), main track (7) and secondary track (8), it is characterized in that: The imaging plate clamping unit (1) includes an imaging plate frame (10), a traveling wheel (11) and an imaging plate protection frame (12); wherein the imaging plate frame (10) is the entire imaging plate clamping unit (1) ) body, on which all the parts and structures of the imaging plate clamping unit are mounted; the imaging plate clamping unit (1) includes eight traveling wheels (11), and these traveling wheels (11) are made of two Bolts are fixed on the imaging plate frame (10); the imaging plate protection frame (12) has two quick-release structures, an upper hook (13) and a lower hook (14), and the upper hook (13) and the lower hook (14) are respectively aligned with each other during connection. Insert the upper port (16) and the lower port (17) on the imaging plate frame (10), and then screw a bolt into the fixing hole (15) on the imaging plate protection frame (12) to realize the imaging plate Relative fixing of the protective frame (12) and the imaging plate frame (10); The drive unit (2) comprises a reducer (24), a motor (23), a rear plate (25), a front plate (26), a handle (28), a sprocket (27) and a traveling wheel (11); wherein , the whole drive unit (2) includes four traveling wheels (11), two of these traveling wheels (11) are fixed on the front plate (26), and the other two are fixed on the rear plate (25); the speed reducer (24) It is fixed on the rear plate (25), the motor (23) is fixed to the input port of the reducer (24) with bolts, and the sprocket (27) is fixed on the output shaft of the reducer, so that the rotation of the motor (23) is realized by reducing the speed After the actuator (24) is output to the sprocket (27), the sprocket (27) is rotated; the end of the handle (28) is a lead screw, when the handle (28) rotates, it is opposite to the rear plate (25) When the handle (28) is rotated, the front plate (26) moves back and forth along the lead screw of the handle (28) to adjust the front plate (26) and the rear plate (25) at rest. while the front plate (26) and the rear plate (25) are each equipped with a pair of traveling wheels (11), when the handle (11) is rotated, the distance between the two pairs of traveling wheels (11) will be realized, so as to realize the The purpose of disassembling and assembling the drive device (2) on the main track (7); The X-ray clamping unit (3) includes an X-ray fixing frame (18), an X-ray frame (22) and a traveling wheel (11); wherein the X-ray clamping unit (3) includes four traveling wheels (11) ), the four traveling wheels (11) are respectively fixed on the X-ray frame (22) by two bolts; the X-ray fixing frame (18) has four hooks (20) and two X-ray fixing holes (19), The X-ray gantry (22) has four hanging holes (21). When the X-ray fixing frame (18) and the X-ray gantry (22) are installed, the four hooks (20) of the X-ray fixing frame (18) are respectively Insert into the four hanging holes (21) of the X-ray frame (22), and then screw bolts into the fixing holes (19) to fix the X-ray fixing frame (18) and the X-ray frame (22); The main rail (7) and the pipe (6) are coaxial, and the two are relatively fixed by means of protrusions, and the chain (9) and the main rail (7) are welded and fixed; the auxiliary rail (8) passes through the bottom The protrusion and the pipe (6) are fixed, and the two are concentric; The driving unit (2) is located between the imaging plate clamping unit (1) and the X-ray clamping unit (3), and a left connecting rod (4) is used to connect the driving unit (2) and the imaging plate clamping unit (1). connection, wherein the left connecting rod (4) is an arc-shaped rod-shaped structure, and bolt holes are respectively opened at both ends; Connect and fix with the drive unit (2); the right connecting rod (5) and the left connecting rod (4) have the same structure, and there are also bolt holes on both sides, and the left and right ends of the right connecting rod (5) are respectively inserted with bolts and respectively. Connect and fix with the driving unit (2) and the X-ray clamping unit (3); The imaging plate clamping unit (1), the driving unit (2), the X-ray clamping unit (3), the left connecting rod (4) and the right connecting rod (5) are connected to form an annular whole; the main rail (7) and the auxiliary rail (8) are two independent rails, which are respectively fixed relative to the pipeline (6). The imaging plate clamping unit (1), the driving unit (2), and the X-ray clamping unit (3) are all along the main rail (7). ) moves in the circumferential direction, the driving unit (2), the X-ray clamping unit (3) and the auxiliary track (8) are not in contact, the structure of the imaging plate clamping unit (1) and the driving unit (2) and X-ray The ray clamping units (3) are not the same. The imaging plate clamping unit (1) has 8 traveling wheels (11), four in a group, a total of two groups, and the group close to the main track (7) is responsible for clamping The main track (7) makes a circular motion along the main track (7), and the other group is close to the sub-track (8), clamps the sub-track (8), and performs a circumferential motion along the sub-track (8), the auxiliary track (8). The rail (8) plays a stabilizing and auxiliary role for the imaging plate clamping unit (1), and the sub-rail (8) has no contact with the driving unit (2) and the X-ray clamping unit (3).