Metal pipeline detection system

Abstract

The metal pipeline detection system of the present invention comprises: a video vehicle, a thickness probe vehicle, a circuit vehicle, and a power switch vehicle, which are connected in sequence through universal joints. The detection system has no drag lines and is not restricted by terrain. The continuous measurement distance can reach 3.5 kilometers. It can detect the appearance and thickness of the inner coating of the pipeline at one time. It is easy to operate and carry. It is driven by compressed air, saving time and labor.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline detection, and in particular relates to a metal pipeline detection system. Background Art

[0002] In the field of oil and gas, most of the oil and gas being transported are corrosive. In order to prevent the inner wall of the metal pipe from being corroded by these corrosive media for a long time, an internal anti-corrosion coating is often applied on the inner wall. Due to the uneven construction quality of the internal anti-corrosion coating on the market, and the lack of inspection methods for the quality of the coating deep inside the pipe, once the construction quality of the internal anti-corrosion layer is poor and fails, the corrosive medium will directly corrode the metal pipe wall, which will soon lead to corrosion and leakage of the metal pipe wall. Therefore, the inspection of the internal anti-corrosion coating of the pipeline is particularly important. Through inspection, the weak links of the anti-corrosion in the pipeline can be found, and the internal anti-corrosion engineering can be carried out in a targeted manner to prevent the corrosion of the inner wall of the pipeline. However, most of the existing inspection technologies are suitable for the inspection of the inner wall coating of large-diameter pipes, and the inspection of the coating of small-diameter pipes is very rare. Even if it can be inspected, it is generally no more than 300 meters inward from the pipe mouth, and it is impossible to conduct a full inspection of the entire long-distance pipeline. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the entire long-distance pipeline cannot be fully inspected.

[0004] To this end, the technical solution adopted is that a metal pipeline detection system of the present invention includes: a video car, a thickness measuring probe car, a circuit car, and a power switch car, and the video car, the thickness measuring probe car, the circuit car, and the power switch car are connected in sequence through universal joints.

[0005] Preferably, a stroke metering device is connected to one end of the power switch vehicle away from the circuit vehicle.

[0006] Preferably, the video cart comprises a video cart body, a lighting lamp is provided at the front end of the video cart body, a video circuit board, a heat sink and a button circuit board are installed in the video cart body, a video button is provided on the outer wall of the video cart body, a lens is provided in the front end of the video cart body, the lens is electrically connected to the video circuit board, the video button is electrically connected to the button circuit board, the button circuit board is electrically connected to the video circuit board, the video circuit board is electrically connected to the lens, a video cart upper cover is provided on the top of the video cart body, the video cart body is connected to the video cart upper cover, and the front and rear end surfaces of the video cart body are connected with power leather cups through threads.

[0007] Preferably, the thickness measuring probe vehicle comprises a thickness measuring probe vehicle body, a probe seat is installed inside the thickness measuring probe vehicle body, the window of the thickness measuring probe vehicle body is aligned with the flat end of the probe seat and is fixedly connected by a first screw, a laser sensor and an eddy current sensor are installed inside the probe seat, the laser sensor is fixed to the probe seat by a second screw, a laser shield is provided on the outside of the laser sensor, an eddy current shield is provided on the outside of the eddy current sensor, both the laser shield and the eddy current shield are fixed to the probe seat with plastic screws, the two ends of the probe vehicle body are connected to the vehicle cover by a third screw, and the outside of the vehicle cover is connected to the supporting leather cup by a fourth screw.

[0008] Preferably, the circuit car includes a circuit car body, an amplifier bracket is installed at the top of the circuit car body, the electromagnetic amplifier is fixed to the amplifier bracket by a fourth screw, the amplifier bracket is connected to the circuit car body by a fifth screw, a circuit board bracket is installed at the bottom of the circuit car body, the control circuit board is fixed to the circuit board bracket by a sixth screw, the circuit board bracket is connected to the circuit car body by a seventh screw, the circuit car body is provided with a card reader port and a USB charging port, a card reader cover is provided on the outside of the card reader port, a USB cover is provided on the outside of the USB charging port, and the card reader cover is connected to the circuit car body by an eighth screw.

[0009] Preferably, the power switch vehicle comprises a power switch vehicle body, a power switch and a charging seat are provided on a circumferential surface of the power switch vehicle body, and the battery pack is fixedly connected to the inside of the power switch vehicle body by a ninth screw.

[0010] Preferably, the stroke metering device includes a base, which is connected to the power switch car, and three first rotating shafts are arranged on the base at intervals along the circumferential direction. Both ends of the first rotating shafts are fixed to the base by self-locking nuts, and the three first rotating shafts are connected to the support rod by torsion springs. A support wheel is arranged at one end of the support rod away from the first rotating shaft, and a rotary encoder is arranged on the support wheel.

[0011] The technical solution of the present invention has the following advantages:

[0012] 1. No drag line, not restricted by terrain, continuous measurement distance up to 3.5 kilometers;

[0013] 2. The appearance and thickness of the inner coating of the pipeline can be tested at one time;

[0014] 3. Easy to operate and carry;

[0015] 4. Driven by compressed air, saving time and labor.

[0016] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0017] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 is a front cross-sectional view of the video vehicle of the present invention;

[0021] Figure 3 A top view of the video car of the present invention;

[0022] Figure 4 It is a front cross-sectional view of the thickness measuring probe vehicle in the present invention;

[0023] Figure 5 A top view of the thickness measuring probe vehicle of the present invention;

[0024] Figure 6 It is a left side view of the thickness measuring probe vehicle of the present invention;

[0025] Figure 7 is a front cross-sectional view of the circuit vehicle of the present invention;

[0026] Figure 8 A top view of the circuit vehicle of the present invention;

[0027] Fig. 9 This is a front view of the power switch vehicle of the present invention;

[0028] Fig.10 It is a front view of the stroke metering device in the present invention;

[0029] Fig.11 It is a schematic diagram of the structure of the cleaning device in the present invention;

[0030] Fig.12 It is a schematic diagram of the internal structure of the cylinder in the cleaning device of the present invention;

[0031] Fig.13 It is a schematic diagram of the connection between the first connecting rod and the second connecting rod in the cleaning device of the present invention;

[0032] Fig.14 It is a structural schematic diagram of the heat dissipation device in the present invention;

[0033] Fig.15 It is a schematic diagram of the connection between the second roller and the fan in the present invention;

[0034] The markings in the accompanying drawings are as follows: 1-video car, 2-thickness probe car, 3-circuit car, 4-power switch car, 5-universal joint, 6-stroke metering device, 8-video car body, 9-lighting lamp, 10-video circuit board, 11-heat sink, 12-video button, 13-button circuit board, 14-video car cover, 15-power leather cup, 16-lens, 17-thickness probe car body, 18-probe seat, 19-first screw, 20-laser sensor, 21-eddy current sensor, 22-second screw, 23-laser shield, 24-eddy current shield, 25-third screw, 26-car cover, 27-fourth screw, 28-support leather cup, 29-circuit car body, 30-amplifier bracket, 31-electromagnetic amplifier, 32-fourth screw, 33-fifth screw, 34-circuit board bracket, 35-control circuit board, 36-sixth screw, 37- The seventh screw, 38-USB charging interface, 39-card reader cover, 40-USB cover, 41-eighth screw, 42-power switch body, 43-power switch, 44-charging base, 45-battery pack, 46-ninth screw, 47-base, 48-rotary encoder, 49-support wheel, 50-first rotating shaft, 51-self-locking nut, 52-torsion spring, 60-cylinder, 61-first rotating rod, 62-second rotating shaft, 63-first gear, 64-round tube, 65-inner gear, 66-connecting rod, 67-second gear, 68-second rotating rod, 69-first connecting rod, 70-cleaning ball, 71-second connecting rod, 72-housing 72, 73-cam, 74-motor, 75-third rotating rod, 76-rocker, 77-first roller, 78-second roller, 79-rotating plate, 80-guide groove, 81-third rotating shaft, 82-fan. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] The embodiment of the present invention provides a metal pipeline detection system, such as Figure 1-10 As shown, it includes: a video car 1, a thickness measuring probe car 2, a circuit car 3, and a power switch car 4. The video car 1, the thickness measuring probe car 2, the circuit car 3, and the power switch car 4 are connected in sequence through a universal joint 5.

[0037] The end of the power switch car 4 away from the circuit car 3 is connected with a stroke metering device 6 .

[0038] The video vehicle 1 includes a video vehicle body 8, a lighting lamp 9 is provided at the front end of the video vehicle body 8, a video circuit board 10, a heat sink 11, and a button circuit board 13 are installed in the video vehicle body 8, a video button 12 is provided on the outer wall of the video vehicle body 8, a lens 16 is provided in the front end of the video vehicle body 8, the lens 16 is electrically connected to the video circuit board 10, the video button 12 is electrically connected to the button circuit board 13, the button circuit board 13 is electrically connected to the video circuit board 10, and the video circuit board 10 is electrically connected to the lens 16, and a video vehicle upper cover 14 is provided on the top of the video vehicle body 8, the video vehicle body 8 is connected to the video vehicle upper cover 14, and the front and rear end surfaces of the video vehicle body 8 are connected with power leather cups 15 through threads.

[0039] The thickness measuring probe vehicle 2 includes a thickness measuring probe vehicle body 17, a probe seat 18 is installed inside the thickness measuring probe vehicle body 17, the window of the thickness measuring probe vehicle body 17 is aligned with the flat end of the probe seat 18, and is fixedly connected by a first screw 19, a laser sensor 20 and an eddy current sensor 21 are installed inside the probe seat 18, the laser sensor 20 is fixed to the probe seat 18 by a second screw 22, a laser shield 23 is provided on the outside of the laser sensor 20, an eddy current shield 24 is provided on the outside of the eddy current sensor 21, the laser shield 23 and the eddy current shield 24 are both fixed to the probe seat 18 by plastic screws, the two ends of the probe vehicle body 17 are connected to the vehicle cover 26 by a third screw 25, and the outside of the vehicle cover 26 is connected to the supporting leather cup 28 by a fourth screw 27.

[0040] The circuit car 3 includes a circuit car body 29, an amplifier bracket 30 is installed at the top of the circuit car body 29, an electromagnetic amplifier 31 is fixed to the amplifier bracket 30 by a fourth screw 32, the amplifier bracket 30 is connected to the circuit car body 29 by a fifth screw 33, a circuit board bracket 34 is installed at the bottom of the circuit car body 29, a control circuit board 35 is fixed to the circuit board bracket 34 by a sixth screw 36, the circuit board bracket 34 is connected to the circuit car body 29 by a seventh screw 37, the circuit car body 29 is provided with a card reader and a USB charging interface 38, a card reader cover 39 is provided on the outside of the card reader, a USB cover 40 is provided on the outside of the USB charging interface 38, and the card reader cover 39 is connected to the circuit car body 29 by an eighth screw 41.

[0041] The power switch vehicle 4 comprises a power switch vehicle body 42 , on the circumferential surface of which a power switch 43 and a charging seat 44 are provided, and a battery pack 45 is fixedly connected to the inside of the power switch vehicle body 42 by a ninth screw 46 .

[0042] The stroke metering device 6 includes a base 47, which is connected to the power switch car 4. Three first rotating shafts 50 are arranged on the base 47 at intervals along the circumferential direction. Both ends of the first rotating shafts 50 are fixed to the base 47 by self-locking nuts 51. The three first rotating shafts 50 are connected to the support rod by torsion springs 52. A support wheel 49 is arranged at one end of the support rod away from the first rotating shaft 50. A rotary encoder 48 is arranged on the support wheel 49. The support wheel 49 can contact the inner wall of the pipeline. The rotation angular velocity and displacement of the support wheel 49 can be detected by the rotary encoder 48, thereby detecting the length of the pipeline.

[0043] The working principle and beneficial technical effects of the above technical solution are as follows: turn on the power switch 43, and push the device completely into the pipeline to be tested in the order of the video car 1, the thickness probe car 2, the circuit car 3, the power switch car 4, and the stroke metering device 6, and then introduce compressed air, which drives the device to move forward, and obtains the appearance, thickness, inner wall cracks, pits and other parameters of the inner wall of the pipeline through the lens 16, the laser sensor 20 and the eddy current sensor 21 respectively for measurement until the device is taken out from the other end of the pipeline. The data is read from the card reader to the computer, and all the data are interpreted by professional testing engineers using supporting software to detect the length and coating thickness data of the pipeline.

[0044] In one embodiment, Figure 11-13 As shown, the tail end of the power switch vehicle 4 is hinged to one end of the cylinder 60, a motor is arranged at the center of the inner wall of the cylinder 60, the motor output shaft is connected to one end of the second rotating shaft 62, the other end of the second rotating shaft 62 passes through the first gear 63, the round tube 64 and is vertically connected to one end of the first rotating rod 61, the second rotating shaft 62 is connected to the first gear 63, the second rotating shaft 62 and the round tube 64 are extended out of the cylinder 60, the second rotating shaft 62 is rotatably connected to the round tube 64, the round tube 64 is rotatably connected to the cylinder wall of the cylinder 60, the inner wall of the cylinder 60 is rotatably connected to an internal gear 65, one end of the connecting rod 66 is connected to the end of the internal gear 65 The second gear 67 is rotatably connected to the inner wall of the cylinder 60, and the second gear 67 is located between the inner gear 65 and the first gear 63. The inner gear 65 meshes with the second gear 67, and the second gear 67 meshes with the first gear 63. The outer wall of the other end of the circular tube 64 is vertically connected to one end of the second rotating rod 68, and the other end of the second rotating rod 68 is rotatably connected to one end of the first connecting rod 69. The other end of the first connecting rod 69 is connected to the cleaning ball 70, and the other end of the first rotating rod 61 is rotatably connected to one end of the second connecting rod 71, and the other end of the second connecting rod 71 is rotatably connected to the middle of the first connecting rod 69.

[0045] The working principle and beneficial technical effects of the above technical solution are as follows: the motor is started, and the motor drives the second rotating shaft 62 and the first gear 63 to rotate. Through the meshing of the first gear 63, the second gear 67 and the internal gear 65, the internal gear 65 and the first gear 63 rotate in opposite directions, and correspondingly drives the first rotating rod 61 and the second rotating rod 68 to rotate in opposite directions. The first rotating rod 61, the second connecting rod 71, the first connecting rod 69, and the second rotating rod 68 form a crank connecting rod mechanism, which drives the first connecting rod 69 to swing and rotate with the second rotating rod 68 at the same time, driving the cleaning ball 70 to clean the inner wall of the pipe. Since the rotation radius of the cleaning ball 70 changes continuously, some potholes on the inner wall of the pipe can also be cleaned.

[0046] In one embodiment, Figure 14-15 As shown, a cam 73 is fixedly connected to the inner wall of the shell 72 of the circuit vehicle 3, and a motor 74 is arranged on the cam 73. The output shaft of the motor 74 is vertically connected to one end of the third rotating rod 75, and the other end of the third rotating rod 75 is connected to the middle of the swing rod 76 through a torsion spring. One end of the swing rod 76 is rotatably connected to the first roller 77, and the first roller 77 contacts the outer circumferential wall of the cam 73. The other end of the swing rod 76 is rotatably connected to the second roller 78. One end of the rotating plate 79 is rotatably connected to the output shaft of the motor 74, and the other end of the rotating plate 79 is provided with a guide groove 80 extending along the length direction, and the second roller 78 can roll in the guide groove 80. One end of the third rotating shaft 81 is connected to the second roller 78, and the other end of the third rotating shaft 81 is connected to the fan 82, and the fan 82 faces the electronic devices in the circuit vehicle 3.

[0047] The working principle and beneficial technical effects of the above technical solution are as follows: starting the motor 74 drives the third rotating rod 75 to rotate, the third rotating rod 75 drives the swing rod 76 to rotate, and the swing rod 76 drives the first roller 77 to roll along the outer circumferential wall of the cam 73, so that the swing rod 76 will swing back and forth around the intersection of the third rotating rod 75 and the swing rod 76 while rotating, driving the rotating plate 79 while rotating, and the second roller 78 will roll back and forth in the guide groove 80, and the second roller 78 will drive the fan 82 to reciprocate in the radial direction while rotating, and rotate alternately forward and reverse along its own axis, so that cyclones are easier to generate and the wind direction is more changeable, thereby enhancing the airflow around the electronic devices and improving the heat dissipation efficiency.

[0048] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A metal pipeline detection system, characterized in that: include: The video car (1), the thickness measuring probe car (2), the circuit car (3), and the power switch car (4) are connected in sequence through a universal joint (5); The tail end of the power switch vehicle (4) is hinged to one end of the cylinder (60); a motor is arranged at the center of the inner wall of the cylinder (60); the motor output shaft is connected to one end of the second rotating shaft (62); the other end of the second rotating shaft (62) passes through the first gear (63), the round tube (64) and is vertically connected to one end of the first rotating rod (61); the second rotating shaft (62) is connected to the first gear (63); the second rotating shaft (62) and the round tube (64) both extend out of the cylinder (60); the second rotating shaft (62) is rotatably connected to the round tube (64); the round tube (64) is rotatably connected to the cylinder wall of the cylinder (60); the inner wall of the cylinder (60) is rotatably connected to an internal gear (65); one end of the connecting rod (66) is connected to the end face of the internal gear (65); Then, the other end of the connecting rod (66) is connected to the outer wall of one end of the circular tube (64); a second gear (67) is rotatably connected to the inner wall of the cylinder (60); the second gear (67) is located between the inner gear (65) and the first gear (63); the inner gear (65) is meshed with the second gear (67); the second gear (67) is meshed with the first gear (63); the outer wall of the other end of the circular tube (64) is vertically connected to one end of a second rotating rod (68); the other end of the second rotating rod (68) is rotatably connected to one end of a first connecting rod (69); the other end of the first connecting rod (69) is connected to a cleaning ball (70); the other end of the first rotating rod (61) is rotatably connected to one end of the second connecting rod (71); the other end of the second connecting rod (71) is rotatably connected to the middle of the first connecting rod (69); A cam (73) is fixedly connected to the inner wall of the housing (72) of the circuit vehicle (3), and a motor (74) is arranged on the cam (73). The output shaft of the motor (74) is vertically connected to one end of a third rotating rod (75), and the other end of the third rotating rod (75) is connected to the middle of a swing rod (76) through a torsion spring. One end of the swing rod (76) is rotatably connected to a first roller (77), and the first roller (77) contacts the outer circumferential wall of the cam (73). The other end of the swing rod (76) is connected to the outer circumferential wall of the cam (73). The rotating plate (79) is rotatably connected to the second roller (78) at one end, and the output shaft of the motor (74) is rotatably connected at one end. A guide groove (80) extending along the length direction is provided on the other end of the rotating plate (79). The second roller (78) can roll in the guide groove (80). One end of the third rotating shaft (81) is connected to the second roller (78). The other end of the third rotating shaft (81) is connected to the fan (82). The fan (82) faces the electronic devices in the circuit car (3).

2. A metal pipeline detection system according to claim 1, characterized in that: The end of the power switch vehicle (4) away from the circuit vehicle (3) is connected to a travel metering device (6).

3. A metal pipeline detection system according to claim 1, characterized in that: The video vehicle (1) comprises a video vehicle body (8), a lighting lamp (9) is provided at the front end of the video vehicle body (8), a video circuit board (10), a heat sink (11), and a button circuit board (13) are installed in the video vehicle body (8), a video button (12) is provided on the outer wall of the video vehicle body (8), a lens (16) is provided in the front end of the video vehicle body (8), the lens (16) is electrically connected to the video circuit board (10), the video button (12) is electrically connected to the button circuit board (13), the button circuit board (13) is electrically connected to the video circuit board (10), and the video circuit board (10) is electrically connected to the lens (16), a video vehicle upper cover (14) is provided at the top end of the video vehicle body (8), the video vehicle body (8) is connected to the video vehicle upper cover (14), and the front and rear end surfaces of the video vehicle body (8) are connected to power leather cups (15) through threads.

4. A metal pipeline detection system according to claim 1, characterized in that: The thickness measuring probe vehicle (2) comprises a thickness measuring probe vehicle body (17), a probe seat (18) is installed inside the thickness measuring probe vehicle body (17), a window of the thickness measuring probe vehicle body (17) is aligned with the flat end of the probe seat (18), and is fixedly connected by a first screw (19), a laser sensor (20) and an eddy current sensor (21) are installed inside the probe seat (18), the laser sensor (20) is fixed to the probe seat (18) by a second screw (22), a laser shield (23) is arranged outside the laser sensor (20), an eddy current shield (24) is arranged outside the eddy current sensor (21), the laser shield (23) and the eddy current shield (24) are both fixed to the probe seat (18) by plastic screws, two ends of the probe vehicle body (17) are connected to a vehicle cover (26) by a third screw (25), and the outside of the vehicle cover (26) is connected to a supporting leather cup (28) by a fourth screw (27).

5. A metal pipeline detection system according to claim 1, characterized in that: The circuit car (3) comprises a circuit car body (29), an amplifier bracket (30) is arranged at the top of the circuit car body (29), an electromagnetic amplifier (31) is fixed to the amplifier bracket (30) by a fourth screw (32), the amplifier bracket (30) is connected to the circuit car body (29) by a fifth screw (33), a circuit board bracket (34) is arranged at the bottom of the circuit car body (29), a control circuit board (35) is fixed to the circuit board bracket (34) by a sixth screw (36), the circuit board bracket (34) is connected to the circuit car body (29) by a seventh screw (37), the circuit car body (29) is provided with a card reading port and a USB charging interface (38), a card reading cover (39) is arranged outside the card reading port, a USB cover (40) is arranged outside the USB charging interface (38), and the card reading cover (39) is connected to the circuit car body (29) by an eighth screw (41).

6. A metal pipeline detection system according to claim 1, characterized in that: The power switch vehicle (4) comprises a power switch vehicle body (42), a power switch (43) and a charging seat (44) are provided on the circumferential surface of the power switch vehicle body (42), and a battery pack (45) is fixedly connected to the inside of the power switch vehicle body (42) by a ninth screw (46).

7. A metal pipeline detection system according to claim 2, characterized in that: The stroke metering device (6) comprises a base (47), the base (47) is connected to the power switch vehicle (4), three first rotating shafts (50) are arranged on the base (47) at intervals along the circumferential direction, both ends of the first rotating shafts (50) are fixed to the base (47) by self-locking nuts (51), the three first rotating shafts (50) are connected to the support rod by torsion springs (52), a support wheel (49) is arranged at one end of the support rod away from the first rotating shaft (50), and a rotary encoder (48) is arranged on the support wheel (49).

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