Non-intrusive petrochemical engineering conveying pipeline wall thickness detection equipment

Abstract

The invention discloses non-intrusive petrochemical engineering conveying pipeline wall thickness detection equipment which comprises a frame, two threaded holes are formed in the surface of the frame, an encircling device is arranged on the inner walls of the two frame threaded holes, the encircling device comprises two first lead screws, the two first lead screws are both in threaded connection with the inner walls of the frame threaded holes, and the two first lead screws are in threaded connection with the inner walls of the frame threaded holes. One end of the first screw rod is rotatably connected with an electromagnetic inductor, the surfaces of the two electromagnetic inductors are electrically connected with connecting wires, and one ends of the two connecting wires are electrically connected with detection display equipment. By arranging the encircling device, the effect of detecting conveying pipelines with different pipe diameters is achieved; the problems that when a conveying pipeline is detected, if pipelines with different pipe diameters cannot be matched, an electromagnetic induction coil is not tightly attached to the outer wall of the pipeline, magnetic field leakage and non-uniform distribution are possibly caused, detected signals are interfered, and a wall thickness calculation result has a large error are solved.

Description

Technical Field

[0001] The invention relates to the technical field of petrochemical pipeline detection, in particular to a non-invasive petrochemical pipeline wall thickness detection device. Background Art

[0002] In the petrochemical industry, the safe operation of transmission pipelines is of vital importance. The wall thickness of pipelines will gradually become thinner due to long-term corrosion and erosion by the internal medium and the influence of the external environment. If it is not discovered and measures are not taken in time, it may lead to serious accidents such as pipeline rupture and leakage, which will not only cause economic losses, but also may cause environmental pollution and safety accidents.

[0003] The above-mentioned and existing related technologies have the following defects: when detecting the transmission pipeline, if the pipelines with different diameters cannot be adapted, the electromagnetic induction coil may not fit tightly against the outer wall of the pipeline, resulting in magnetic field leakage and uneven distribution, thereby interfering with the detected signal and causing large errors in the wall thickness calculation results.

[0004] To this end, we propose a non-invasive petrochemical pipeline wall thickness detection device Summary of the invention

[0005] The purpose of the present invention is to provide a non-invasive petrochemical pipeline wall thickness detection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a non-invasive petrochemical pipeline wall thickness detection device, comprising a frame, the surface of the frame is provided with two threaded holes, the inner walls of the two frame threaded holes are provided with an embracing device, the embracing device comprises two first screw rods, the two first screw rods are threadedly connected to the inner walls of the frame threaded holes, one end of the first screw rod is rotatably connected to an electromagnetic sensor, the surfaces of the two electromagnetic sensors are electrically connected to connecting wires, one end of the two connecting wires is electrically connected to a detection display device, the other end of the screw rod is fixedly connected to a first gear, the inner surface of the frame is fixedly connected to two micro servo motors, the output end of the micro servo motor is fixedly connected to a second gear, and the first gear is meshed with the second gear.

[0007] The effect achieved by the above components is: by setting the embracing device, the effect of detecting the conveying pipelines with different diameters is achieved, and there is no need to equip pipelines with different diameters with a variety of detection equipment, which greatly improves the versatility and utilization efficiency of the equipment and reduces the equipment procurement and maintenance costs of the enterprise.

[0008] Preferably, two fixing rods are fixedly connected to the surface of the frame, the arc surface of the fixing rod is fixedly connected to a connecting block, the arc surface of the fixing rod is slidably connected to a bracket, one end of the fixing rod is fixedly connected to an L-shaped plate, and a screw is inserted into the internal thread of the L-shaped plate.

[0009] The effect achieved by the above components is that the inner surface of the bracket is meshed with the teeth of the second gear, which can prevent the second gear from rotating due to external influences, thereby improving the stability of the device.

[0010] Preferably, a gasket is fixedly connected to one end of the screw rod.

[0011] The effect achieved by the above components is: by setting the gasket, the friction between the screw and the bracket is increased to prevent the frame from moving or falling during movement.

[0012] Preferably, two limit rods are slidably inserted in the frame, and one end of the limit rod is fixedly connected to the electromagnetic inductor.

[0013] The effect achieved by the above components is that the electromagnetic inductor drives the limit rod to slide in the frame to prevent the electromagnetic inductor from rotating during the movement toward the conveying pipeline.

[0014] Preferably, two driving holes are opened on the surface of the frame, and the inner walls of the two frame driving holes are provided with adjustment devices, and the adjustment device includes two second screw rods, and the two second screw rods are threadedly connected to the inner walls of the frame driving holes, and the arc surface of the second screw rod is slidably connected to a hollow rod, and one end of the hollow rod is fixedly connected to a layered brush plate.

[0015] The effect achieved by the above components is: by setting the adjustment device, the surface of the conveying pipeline is cleaned, so as to avoid the leakage of internal media to the outer surface of the pipeline to form oil stains or dust, mud and other impurities in the surrounding environment adhering to the surface of the pipeline during the transportation process of the petrochemical pipeline, thereby blocking the electromagnetic induction, preventing the magnetic field from effectively penetrating the pipeline surface, and weakening the induced current generated inside the pipeline.

[0016] Preferably, the arc surface of the second screw rod is fixedly connected to an L-shaped frame, a baffle is slidably inserted in the L-shaped frame, the arc surface of the hollow rod is provided with a slot, the inner wall of the slot is provided with an installation slot, the inner wall of the slot installation slot is fixedly connected to a first spring, and the other end of the first spring is fixedly connected to a push rod.

[0017] The effect achieved by the above components is: pull the baffle plate to slide in the L-shaped frame until the baffle plate is separated from the inner wall of the card slot, so that the staff can regularly disassemble and clean the layered brush plate.

[0018] Preferably, the inner layer of the layered brush plate is made of nylon fiber, and the outer layer of the layered brush plate is made of polyester fiber.

[0019] The effects achieved by the above components are: the inner brush is made of shorter and harder nylon wire, which is used to initially loosen and scrape off oil and impurities that are firmly attached to the surface of the pipe; the outer brush is longer and softer, and uses a fiber material with good flexibility. Its function is to further clean up the loose impurities during the cleaning process, and clean up the fine dust and particles on the surface of the pipe, while avoiding scratching the surface of the pipe. The length ratio of the inner and outer brushes can be set to about 1:2. Such a layered structure can improve the cleaning effect and the protection ability of the pipe.

[0020] Preferably, two sliding holes are provided on the surface of the frame, and the inner wall of the frame sliding hole is provided with an auxiliary device, and the auxiliary device includes two connecting rods, and the two connecting rods are slidably connected to the inner wall of the frame sliding hole, one end of the connecting rod is fixedly connected to a connecting plate, and a plurality of rollers are fixedly connected to the surface of the connecting plate, the arc surface of the connecting rod is slidably connected to a fixing frame, one end of the connecting rod is fixedly connected to a mounting block, and a fixing groove is provided on the surface of the frame.

[0021] The effect achieved by the above components is: by setting up auxiliary devices, it is easy for the staff to move the frame, so that the rollers and the conveying pipes can fit together to reduce friction, making it convenient for the staff to stably move the electromagnetic sensor, thereby improving the convenience of the device.

[0022] Preferably, the arc surface of the connecting rod is sleeved with a second spring, and two ends of the second spring are fixedly connected to the mounting block and the fixing frame respectively.

[0023] The effect achieved by the above components is that the stability of the fixing frame limit can be increased by the elastic force of the second spring itself to prevent it from falling off.

[0024] Preferably, a plurality of adjustment grooves are provided on the surface of the frame.

[0025] The effect achieved by the above components is: by setting the adjustment groove, the roller can be more adaptable to conveying pipes with different diameters.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention achieves the effect of detecting delivery pipelines with different diameters by setting an embracing device. There is no need to equip pipelines with different diameters with a variety of detection equipment, which greatly improves the versatility and use efficiency of the equipment and reduces the equipment procurement and maintenance costs of the enterprise.

[0028] 2. The present invention achieves the effect of cleaning the surface of the conveying pipeline by setting an adjustment device, so as to prevent the internal medium from leaking to the outer surface of the pipeline to form oil stains or impurities such as dust and sand in the surrounding environment from adhering to the surface of the pipeline during the transportation process of the petrochemical pipeline, thereby blocking the electromagnetic induction, preventing the magnetic field from effectively penetrating the pipeline surface, and weakening the induced current generated inside the pipeline.

[0029] 3. The present invention achieves the effect of facilitating the staff to move the frame by setting an auxiliary device, so that the roller and the conveying pipe can be fitted to reduce friction, which makes it convenient for the staff to stably move the electromagnetic sensor and improves the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a structural schematic diagram of another angle of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the embracing device in the present invention;

[0033] Figure 4 It is a partial structural schematic diagram of the embracing device in the present invention;

[0034] Figure 5 It is a structural schematic diagram of the regulating device in the present invention;

[0035] Figure 6 For the present invention Figure 5 A magnified image of point A;

[0036] Figure 7 It is a schematic diagram of the cross-sectional structure of the hollow rod in the present invention;

[0037] Figure 8 It is a schematic diagram of the structure of the auxiliary device in the present invention.

[0038] In the figure: 1-frame; 2-electromagnetic inductor; 3-connecting line; 3-detection display device; 5-embracing device; 501-first screw rod; 502-first gear; 503-micro servo motor; 504-second gear; 505-fixing rod; 506-connecting block; 507-cage; 508-L-shaped plate; 509-screw rod; 510-gasket; 511-limiting rod; 6-adjusting device; 61-second screw rod; 62-third gear; 63-hollow rod; 64-layered brush plate; 65-L-shaped frame; 66-baffle; 67-cage slot; 68-first spring; 69-throw rod; 7-auxiliary device; 71-connecting rod; 72-connecting plate; 73-roller; 74-fixed frame; 75-mounting block; 76-second spring; 77-adjusting slot; 78-anti-slip pad. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-8 The present invention provides a technical solution: a non-invasive petrochemical pipeline wall thickness detection device, comprising a frame 1, two threaded holes are provided on the surface of the frame 1, and the inner walls of the two threaded holes of the frame 1 are provided with an embracing device 5. By providing the embracing device 5, the effect of detecting pipelines with different diameters is achieved, and there is no need to equip pipelines with different diameters with a variety of detection devices, which greatly improves the versatility and use efficiency of the equipment and reduces the equipment procurement and maintenance costs of the enterprise; two driving holes are provided on the surface of the frame 1, and the inner walls of the two driving holes of the frame 1 are provided with an adjusting device 6. By providing the adjusting device 6, the effect of cleaning the surface of the pipeline is achieved. The effect is to prevent the internal medium from leaking to the outer surface of the petrochemical pipeline during transportation to form oil stains or dust, mud and other impurities in the surrounding environment from adhering to the surface of the pipeline, resulting in a barrier effect on electromagnetic induction, hindering the magnetic field from effectively penetrating the pipeline surface, and weakening the induced current generated inside the pipeline; two sliding holes are provided on the surface of the frame 1, and the inner wall of the sliding hole of the frame 1 is provided with an auxiliary device 7. By providing the auxiliary device 7, the effect of facilitating the movement of the frame 1 by the staff is achieved, so that the roller 73 is fitted with the conveying pipeline to reduce friction, and it is convenient for the staff to stably move the electromagnetic sensor 2, thereby improving the convenience of the device.

[0041] The specific settings and functions of the embracing device 5, the adjusting device 6 and the auxiliary device 7 will be described in detail below.

[0042] like Figure 3 and Figure 4 As shown, the embracing device 5 includes two first screw rods 501, and the two first screw rods 501 are both threadedly connected to the inner wall of the threaded hole of the frame 1, one end of the first screw rod 501 is rotatably connected to the electromagnetic inductor 2, the surfaces of the two electromagnetic inductors 2 are electrically connected to connecting wires, one end of the two connecting wires is electrically connected to the detection display device 3, the other end of the screw rod is fixedly connected to the first gear 502, the inner surface of the frame 1 is fixedly connected to two micro servo motors 503, the output end of the micro servo motor 503 is fixedly connected to the second gear 504, the first gear 502 is meshed with the second gear 504, the surface of the frame 1 is fixedly connected to two fixed rods 505, the arc surface of the fixed rod 505 is fixedly connected to the connecting block 506, and the arc surface of the fixed rod 505 is slidably connected to the bracket 50 7. One end of the fixed rod 505 is fixedly connected to an L-shaped plate 508, and a screw 509 is inserted into the internal thread of the L-shaped plate 508. The inner surface of the bracket 507 is meshed with the teeth of the second gear 504, so that the second gear 504 can be prevented from rotating due to external influences, thereby improving the stability of the device. One end of the screw 509 is fixedly connected to a gasket 510. The friction between the screw 509 and the bracket 507 is increased by setting the gasket 510 to prevent the frame 1 from moving or falling during movement. Two limit rods 511 are slidably inserted in the frame 1, and one end of the limit rod 511 is fixedly connected to the electromagnetic inductor 2. The electromagnetic inductor 2 drives the limit rod 511 to slide in the frame 1 to prevent the electromagnetic inductor 2 from rotating during movement toward the conveying pipeline.

[0043] like Figure 5 , Figure 6 and Figure 7As shown, the adjusting device 6 includes two second screw rods 61, and the two second screw rods 61 are both threadedly connected to the inner wall of the driving hole of the frame 1. The arc surface of the second screw rod 61 is slidably connected with a hollow rod 63, and one end of the hollow rod 63 is fixedly connected with a layered brush plate 64. The arc surface of the second screw rod 61 is fixedly connected with an L-shaped frame 65, and a baffle 66 is slidably inserted in the L-shaped frame 65. The arc surface of the hollow rod 63 is provided with a card slot 67, and the inner wall of the card slot 67 is provided with a mounting groove. The inner wall of the mounting groove of the card slot 67 is fixedly connected with a first spring 68, and the other end of the first spring 68 is fixedly connected with a push rod 69, and the baffle 66 is pulled to slide in the L-shaped frame 65 until the baffle 66 is separated from the inner wall of the card slot 67. , so that the staff can regularly disassemble and clean the layered brush plate 64. The inner layer of the layered brush plate 64 is made of nylon thread, and the outer layer of the layered brush plate 64 is made of polyester fiber. The inner layer brush is made of shorter and harder nylon thread, which is used to initially loosen and scrape off the oil and impurities that are more firmly attached to the surface of the pipeline. The outer layer brush is longer and softer, and uses a fiber material with good flexibility. Its function is to further clean up the loose impurities during the cleaning process, and clean up the fine dust and particles on the surface of the pipeline, while avoiding scratching the surface of the pipeline. The length ratio of the inner and outer layer brushes can be set to about 1:2. Such a layered structure can improve the cleaning effect and the protection ability of the pipeline.

[0044] like Figure 8 As shown, the auxiliary device 7 includes two connecting rods 71, and the two connecting rods 71 ​​are slidably connected to the inner wall of the sliding hole of the frame 1. One end of the connecting rod 71 is fixedly connected to a connecting plate 72, and the surface of the connecting plate 72 is fixedly connected to a plurality of rollers 73. The arc surface of the connecting rod 71 is slidably connected to a fixing frame 74, and one end of the connecting rod 71 is fixedly connected to a mounting block 75. A fixing groove is provided on the surface of the frame 1, and a second spring 76 is sleeved on the arc surface of the connecting rod 71. The two ends of the second spring 76 are fixedly connected to the mounting block 75 and the fixing frame 74 respectively. The elastic force of the second spring 76 itself can increase the stability of the fixing frame 74 to prevent it from falling off. The surface of the frame 1 is provided with a plurality of adjusting grooves 77. By setting the adjusting grooves 77, the roller 73 can be more adapted to conveying pipes of different diameters.

[0045] Working principle: When the staff uses the electromagnetic sensor 2 to detect the transport pipeline, firstly, the diameter of the transport pipeline is input into the detection display device 3, then the bracket 507 is pulled to slide on the arc surface of the fixed rod 505, the screw 509 is rotated in the L-shaped plate 508, and the screw 509 drives the gasket 510 to move until the surface of the gasket 510 abuts against the bracket 507, and then the micro servo motor 503 is started, the micro servo drives the second gear 504 to rotate, the second gear 504 drives the first gear 502 to rotate, and the second gear 504 and the first gear 502 are rotated. The tooth ratio between the gears 502 is 2:1. At this time, the first gear 502 drives the first screw rod 501 to rotate, the first screw rod 501 moves in the frame 1, the first screw rod 501 drives the electromagnetic sensor 2 to move, and the electromagnetic sensor 2 drives the limit rod 511 to slide in the frame 1 until the electromagnetic sensor 2 is adjusted to an appropriate position, thereby achieving the effect of detecting pipelines with different diameters. There is no need to equip pipelines with different diameters with a variety of detection equipment, which greatly improves the versatility and use efficiency of the equipment and reduces the equipment procurement and maintenance costs of the enterprise.

[0046] In the process of adapting the electromagnetic inductor 2 to the diameter of the transport pipeline, the second gear 504 will simultaneously drive the third gear 62 to rotate, the third gear 62 will drive the second screw rod 61 to rotate in the frame 1, and the second screw rod 61 will drive the layered brush plate 64 to move until the micro servo motor 503 stops rotating, thereby achieving the effect of cleaning the surface of the transport pipeline, and preventing the internal medium from leaking to the outer surface of the pipeline to form oil stains or dust, mud and other impurities in the surrounding environment from adhering to the surface of the pipeline during transportation of the petrochemical pipeline, thereby blocking the electromagnetic induction, preventing the magnetic field from effectively penetrating the pipeline surface, and weakening the induced current generated inside the pipeline.

[0047] When the position of roller 73 needs to be adjusted, the limit frame is pulled to slide on the arc surface of connecting rod 71 until the limit frame disengages from the adjustment groove 77, and the connecting rod 71 is pulled up and down. The connecting rod 71 drives the connecting plate 72 to change its angle. After the angle of roller 73 is adjusted to fit, the limit frame is released, and the elastic force of the second spring 76 drives the limit frame to slide on the arc surface of connecting rod 71 and insert into the adjustment groove 77, thereby achieving the effect of facilitating the staff to move the frame 1, so that the roller 73 and the conveying pipe can be fitted to reduce friction, which is convenient for the staff to stably move the electromagnetic inductor 2, thereby improving the convenience of the device.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include"-"comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process-method-article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process-method-article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-invasive petrochemical pipeline wall thickness detection device, comprising a frame (1), characterized in that: Two threaded holes are provided on the surface of the frame (1); the inner walls of the two threaded holes of the frame (1) are provided with an embracing device (5); the embracing device (5) comprises two first screw rods (501); the two first screw rods (501) are both threadedly connected to the inner walls of the threaded holes of the frame (1); one end of the first screw rod (501) is rotatably connected to an electromagnetic inductor (2); the surfaces of the two electromagnetic inductors (2) are both electrically connected to connecting wires; one end of the two connecting wires is electrically connected to a detection display device (3); the other end of the screw rod is fixedly connected to a first gear (502); the inner surface of the frame (1) is fixedly connected to two micro servo motors (503); the output end of the micro servo motor (503) is fixedly connected to a second gear (504); the first gear (502) is meshed with the second gear (504).

2. The non-invasive petrochemical pipeline wall thickness detection device according to claim 1 is characterized by: Two fixing rods (505) are fixedly connected to the surface of the frame (1); a connecting block (506) is fixedly connected to the circular arc surface of the fixing rod (505); a bracket (507) is slidably connected to the circular arc surface of the fixing rod (505); an L-shaped plate (508) is fixedly connected to one end of the fixing rod (505); a screw (509) is inserted into the internal thread of the L-shaped plate (508).

3. The non-invasive petrochemical pipeline wall thickness detection device according to claim 2 is characterized by: One end of the screw rod (509) is fixedly connected to a gasket (510).

4. The non-invasive petrochemical pipeline wall thickness detection device according to claim 1 is characterized by: Two limiting rods (511) are slidably inserted in the frame (1), and one end of the limiting rod (511) is fixedly connected to the electromagnetic inductor (2).

5. The non-invasive petrochemical pipeline wall thickness detection device according to claim 1 is characterized by: Two driving holes are provided on the surface of the frame (1); the inner walls of the two driving holes of the frame (1) are provided with adjusting devices (6); the adjusting devices (6) include two second screw rods (61); the two second screw rods (61) are both threadedly connected to the inner walls of the driving holes of the frame (1); the arc surface of the second screw rod (61) is slidably connected to a hollow rod (63); one end of the hollow rod (63) is fixedly connected to a layered brush plate (64).

6. The non-invasive petrochemical pipeline wall thickness detection device according to claim 5 is characterized by: The arc surface of the second screw rod (61) is fixedly connected to an L-shaped frame (65), a baffle (66) is slidably inserted in the L-shaped frame (65), the arc surface of the hollow rod (63) is provided with a clamping groove (67), the inner wall of the clamping groove (67) is provided with a mounting groove, the inner wall of the mounting groove of the clamping groove (67) is fixedly connected to a first spring (68), and the other end of the first spring (68) is fixedly connected to a push rod (69).

7. The non-invasive petrochemical pipeline wall thickness detection device according to claim 6 is characterized by: The inner layer of the layered brush plate (64) is made of nylon fiber, and the outer layer of the layered brush plate (64) is made of polyester fiber.

8. The non-invasive petrochemical pipeline wall thickness detection device according to claim 1 is characterized by: The surface of the frame (1) is provided with two sliding holes, the inner wall of the sliding hole of the frame (1) is provided with an auxiliary device (7), the auxiliary device (7) comprises two connecting rods (71), the two connecting rods (71) are slidably connected to the inner wall of the sliding hole of the frame (1), one end of the connecting rod (71) is fixedly connected to a connecting plate (72), the surface of the connecting plate (72) is fixedly connected to a plurality of rollers (73), the arc surface of the connecting rod (71) is slidably connected to a fixing frame (74), one end of the connecting rod (71) is fixedly connected to a mounting block (75), and the surface of the frame (1) is provided with a fixing groove.

9. The non-invasive petrochemical pipeline wall thickness detection device according to claim 8, characterized in that: The arc surface of the connecting rod (71) is sleeved with a second spring (76), and the two ends of the second spring (76) are respectively fixedly connected to the mounting block (75) and the fixing frame (74).

10. The non-invasive petrochemical pipeline wall thickness detection device according to claim 1, characterized in that: A plurality of adjustment grooves (77) are provided on the surface of the frame (1).

Images