A kind of positioning device for ultrasonic testing of tank defects

Abstract

The utility model relates to the technical field of storage tank detection discloses a kind of tank body defect ultrasonic detection positioning device, including tank body, the bottom of the tank body is provided with positioning plate, the top of the positioning plate is fixedly connected with electric push rod, the top of the electric push rod is fixedly connected with positioning platform, the top of the positioning platform is fixedly connected with radar distance sensing head.The utility model has the following advantages and effects: after being treated, the two-dimensional defect image of the detection area is generated, the operator compares the image with the standard defect atlas database pre-stored in the ultrasonic detection equipment, and the corrosion degree of the defect at this point can be defined, which is highly versatile, easy to install and remove, and can accurately and stably fix the ultrasonic probe at a position 200mm away from the detection point, ensuring that the conditions of each detection are completely consistent with the conditions when establishing the standard database, so that the comparison result of the actual detection image and the standard defect image is more accurate.

Description

Technical Field

[0001] This utility model relates to the field of storage tank inspection technology, and in particular to an ultrasonic detection and positioning device for tank defects. Background Technology

[0002] In the petrochemical industry, after a long period of operation, the bottom of storage tanks often shows varying degrees of corrosion, thinning, or even perforation.

[0003] In the prior art, Chinese Patent Publication No. CN215931753U discloses a portable and energy-saving ultrasonic testing device for aluminum alloy cast rods, including an ultrasonic testing cylinder with a hand handle welded on it. An ultrasonic testing port is provided on the inner side of the ultrasonic testing cylinder. The ultrasonic testing cylinder is placed on a bracket, and a connector is bolted to the center of the bottom of the ultrasonic testing cylinder. A power cable is connected to the connector and wound around a cable reel. The ultrasonic testing panel body of this utility model has swingable carrying racks mounted on both sides via pins, and one end of the carrying rack is equipped with an anti-slip sleeve to assist in supporting the ultrasonic testing panel body. Supporting feet are embedded in the bottom of the ultrasonic testing panel body to protect the outer shell, prevent wear, and increase its stability.

[0004] However, in actual use, when inspecting storage tanks, this utility model can obtain all defect information without scanning the entire thin plate surface. However, how to analyze the received echo signals and determine the degree of defect remains a problem. It is not convenient to locate and inspect the equipment under test, and it is not convenient to fix and support the ultrasonic waves during the test. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide an ultrasonic detection and positioning device for tank defects, which can make the comparison results between the actual detection image and the standard defect image more accurate.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an ultrasonic detection and positioning device for tank defects, comprising a tank, a positioning plate provided at the bottom of the tank, an electric push rod fixedly connected to the top of the positioning plate, a positioning platform fixedly connected to the top of the electric push rod, a radar distance sensor head fixedly connected to the top of the positioning platform, an electric hinge seat fixedly connected to the top of the positioning platform, an ultrasonic probe rotatably connected to the inner wall of the electric hinge seat, a fixed clamping plate provided on one side of the tank, a movable clamping plate provided on the other side of the tank, an ultrasonic detection host provided on one side of the tank, and an ultrasonic detection host integrating and storing a standard defect atlas database, the database containing multiple sets of echo image data obtained by detecting different standard defects at a preset fixed distance.

[0007] By adopting the above technical solution, when ultrasonic testing of the tank's bottom plate is required, firstly, the positioning plate is installed below the tank. After the clamping plate rises and abuts against one side of the tank, the clamping plate is moved to clamp the other side, thus firmly clamping the entire device onto the tank's side wall. The electric push rod is then activated, pushing the positioning platform and its components towards the tank's bottom plate. The radar distance sensor continuously monitors the distance between itself and the tank's bottom plate surface. When this distance reaches a preset value, such as 200mm, a feedback signal stops the electric push rod. Subsequently, the angle of the electric hinge seat is adjusted so that the ultrasonic probe is aligned with the tank's bottom plate surface at the optimal incident angle. At this point, the distance between the ultrasonic probe and the tank's bottom plate is precisely fixed, and the ultrasonic probe is electrically connected to the ultrasonic testing equipment. The ultrasonic testing equipment excites the ultrasonic probe to emit ultrasonic waves and receives the echo signals. After processing, a two-dimensional defect image of the area to be tested is generated. The operator compares this image with the standard defect image database pre-stored in the ultrasonic testing equipment to determine the degree of corrosion of the defect. Through symmetrically distributed arc-shaped fixed clamping plates and moving clamping plates, in conjunction with the cylinder-driven clamping mechanism, it can stably clamp the ultrasonic probe on the side wall of vertical storage tanks of different diameters. It has strong versatility and is easy to install and disassemble. It can accurately and stably fix the ultrasonic probe at a position 200mm away from the test point, ensuring that the conditions for each test are completely consistent with the conditions when the standard database was established, thereby making the comparison results between the actual test image and the standard defect image more accurate.

[0008] A further feature of this invention is that a first frame plate is fixedly connected to one side of the fixed clamping plate, and a first electric telescopic rod is fixedly connected to the bottom of the first frame plate.

[0009] By adopting the above technical solution, the first electric telescopic pole is in a retracted state before installation.

[0010] A further feature of this invention is that a first bracket is fixedly connected to the bottom of the first electric telescopic rod, and a first connecting rod is fixedly connected to one side of the first bracket.

[0011] By adopting the above technical solution, the first bracket is connected and supported by the first connecting rod, and the extension and retraction of the first electric telescopic rod controls the up and down movement of the fixed clamping plate.

[0012] A further feature of this invention is that one end of the first connecting rod is fixedly connected to the positioning plate, and the other end of the positioning plate is fixedly connected to the second connecting rod.

[0013] By adopting the above technical solution, the second connecting rod is fixed to both ends of the positioning plate along with the first connecting rod.

[0014] A further feature of this invention is that a second bracket is fixedly connected to one end of the second connecting rod, and a second electric telescopic rod is fixedly connected to the top of the second bracket.

[0015] By adopting the above technical solution, the second bracket supports the second electric telescopic rod, and the height of the movable clamping plate is adjusted by the second electric telescopic rod.

[0016] A further feature of this invention is that a second frame plate is fixedly connected to the top of the second electric telescopic rod, and a cylinder is fixedly connected to one side of the second frame plate.

[0017] By adopting the above technical solution, the cylinder is activated when the moving clamping plate clamps.

[0018] A further feature of this invention is that a telescopic rod is fixedly connected to the output end of the cylinder, and one end of the telescopic rod is fixedly connected to a movable clamping plate.

[0019] By adopting the above technical solution, the telescopic rod drives the movement of the movable clamping plate, thereby achieving clamping and fixing.

[0020] A further feature of this invention is that the fixed clamping plate and the movable clamping plate are the same size, and both the fixed clamping plate and the movable clamping plate are arc-shaped plates.

[0021] By adopting the above technical solution, the arc plate conforms to the curvature of the tank surface, resulting in a more secure clamping.

[0022] A further feature of this invention is that a support leg is fixedly connected to the outer surface of the tank, and the number of the support legs is four.

[0023] By adopting the above technical solution, the support legs ensure that the bottom plate of the tank is a certain distance from the ground.

[0024] A further feature of this invention is that the fixed clamping plate and the movable clamping plate are distributed symmetrically, and the inner walls of both the fixed clamping plate and the movable clamping plate are provided with an anti-slip layer.

[0025] By adopting the above technical solution, the anti-slip layer increases the friction at the clamping point, thus making it less likely to shift after clamping.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model, through the coordinated arrangement of the tank body, positioning plate, electric push rod, positioning platform, radar distance sensor head, electric hinge seat, ultrasonic probe, fixed clamping plate, movable clamping plate, and ultrasonic testing host, enables the positioning platform and its components to move towards the tank bottom plate during use. The radar distance sensor head detects the distance between itself and the tank bottom plate surface in real time. When the distance reaches a preset value, such as 200mm, a feedback signal stops the electric push rod. Subsequently, the angle of the electric hinge seat is adjusted so that the ultrasonic probe is aligned with the tank bottom plate surface at the optimal incident angle. At this time, the distance between the ultrasonic probe and the tank bottom plate is precisely fixed. The ultrasonic probe is electrically connected to the ultrasonic testing equipment, and the ultrasonic testing equipment... The ultrasonic probe emits ultrasonic waves and receives echo signals. After processing, a two-dimensional defect image of the area to be inspected is generated. The operator compares this image with a standard defect image database pre-stored in the ultrasonic testing equipment to determine the degree of corrosion of the defect. Through symmetrically distributed arc-shaped fixed clamping plates and moving clamping plates, combined with a cylinder-driven clamping mechanism, it can be stably clamped on the side wall of vertical storage tanks of different diameters. It has strong versatility and is easy to install and disassemble. It can accurately and stably fix the ultrasonic probe at a position 200mm away from the detection point, ensuring that the conditions for each test are completely consistent with the conditions when the standard database was established, thereby making the comparison results between the actual detection image and the standard defect image more accurate.

[0028] 2. This utility model, through the coordinated arrangement of the first frame plate, the first electric telescopic rod, the first bracket, the first connecting rod, the second connecting rod, the second bracket, the second frame plate, the cylinder, the telescopic rod, and the support leg, enables the device to be in use. Before installation, the first electric telescopic rod is in a retracted state, the first bracket is connected and supported by the first connecting rod, the telescopic movement of the first electric telescopic rod controls the up and down movement of the fixed clamping plate, the second connecting rod is fixed to both ends of the positioning plate, the second bracket supports the second electric telescopic rod, the height of the moving clamping plate is adjusted by the second electric telescopic rod, and the cylinder is activated when the moving clamping plate clamps, the telescopic rod drives the moving clamping plate to move, thereby achieving clamping and fixing. The arc plate conforms to the curvature of the tank surface, making the clamping more snug, and the anti-slip layer increases the friction at the clamping point, thus making it less likely to shift after clamping. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0032] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B;

[0033] Figure 4 This is a schematic diagram of the positioning plate structure of this utility model.

[0034] In the diagram, 1. Tank body; 2. Positioning plate; 3. Electric push rod; 4. Positioning platform; 5. Radar distance sensor head; 6. Electric hinge seat; 7. Ultrasonic probe; 8. Fixed clamping plate; 9. Moving clamping plate; 10. Ultrasonic testing host; 11. First support plate; 12. First electric telescopic rod; 13. First bracket; 14. First connecting rod; 15. Second connecting rod; 16. Second bracket; 17. Second support plate; 18. Cylinder; 19. Telescopic rod; 20. Support leg. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] An ultrasonic detection and location device for tank defects includes the following embodiments:

[0037] Example 1:

[0038] Reference Figure 1-4The system includes a tank body 1, a positioning plate 2 at the bottom of the tank body 1, an electric push rod 3 fixedly connected to the top of the positioning plate 2, a positioning platform 4 fixedly connected to the top of the electric push rod 3, a radar distance sensor head 5 fixedly connected to the top of the positioning platform 4, an electric hinge seat 6 fixedly connected to the top of the positioning platform 4, an ultrasonic probe 7 rotatably connected to the inner wall of the electric hinge seat 6, a fixed clamping plate 8 on one side of the tank body 1, a movable clamping plate 9 on the other side of the tank body 1, and an ultrasonic testing host 10 on one side of the tank body 1. The ultrasonic testing host 10 integrates and stores a standard defect map database, which contains multiple sets of echo image data obtained by detecting different standard defects at a preset fixed distance.

[0039] Specifically, when ultrasonic testing of the bottom plate of tank 1 is required, the positioning plate 2 is first installed below tank 1. After the clamping plate 8 rises to abut one side of tank 1, the clamping plate 9 moves to clamp the other side, thus firmly clamping the entire device to the side wall of tank 1. The electric push rod 3 is activated to push the positioning platform 4 and its components toward the bottom plate of the tank. The radar distance sensor 5 detects the distance between itself and the surface of the bottom plate of the tank in real time. When the distance reaches a preset value, such as 200mm, the feedback signal stops the electric push rod 3. Then, the angle of the electric hinge seat 6 is adjusted so that the ultrasonic probe 7 is aligned with the surface of the bottom plate of the tank at the optimal incident angle. At this time, the distance between the ultrasonic probe 7 and the bottom plate of the tank has been precisely fixed. The ultrasonic probe 7 and the ultrasonic testing equipment 10 are electrically... The ultrasonic testing equipment 10 excites the ultrasonic probe 7 to emit ultrasonic waves and receive echo signals. After processing, a two-dimensional defect image of the area to be tested is generated. The operator compares this image with the standard defect image database stored in the ultrasonic testing equipment 10 to determine the degree of corrosion of the defect. Through symmetrically distributed arc-shaped fixed clamping plates and moving clamping plates, in conjunction with the cylinder-driven clamping mechanism, it can be stably clamped on the side wall of vertical storage tanks of different diameters. It has strong versatility and is easy to install and disassemble. It can accurately and stably fix the ultrasonic probe at a position 200mm away from the test point, ensuring that the conditions of each test are completely consistent with the conditions when the standard database was established, so that the comparison results between the actual test image and the standard defect image are more accurate.

[0040] Example 2:

[0041] Reference Figure 1-4A first frame plate 11 is fixedly connected to one side of the fixed clamping plate 8. A first electric telescopic rod 12 is fixedly connected to the bottom of the first frame plate 11. A first bracket 13 is fixedly connected to the bottom of the first electric telescopic rod 12. A first connecting rod 14 is fixedly connected to one side of the first bracket 13. One end of the first connecting rod 14 is fixedly connected to the positioning plate 2. A second connecting rod 15 is fixedly connected to the other end of the positioning plate 2. A second bracket 16 is fixedly connected to one end of the second connecting rod 15. A second electric telescopic rod is fixedly connected to the top of the second bracket 16. A second frame plate 17 is fixedly connected to the first part. A cylinder 18 is fixedly connected to one side of the second frame plate 17. A telescopic rod 19 is fixedly connected to the output end of the cylinder 18. One end of the telescopic rod 19 is fixedly connected to the movable clamping plate 9. The fixed clamping plate 8 and the movable clamping plate 9 are the same size. Both the fixed clamping plate 8 and the movable clamping plate 9 are arc-shaped plates. Support legs 20 are fixedly connected to the outer surface of the tank body 1. There are four support legs 20. The fixed clamping plate 8 and the movable clamping plate 9 are distributed in a symmetrical manner. The inner walls of both the fixed clamping plate 8 and the movable clamping plate 9 are provided with an anti-slip layer.

[0042] Specifically, before installation, the first electric telescopic rod 12 is in a retracted state. The first bracket 13 is connected and supported by the first connecting rod 14. The telescopic control of the first electric telescopic rod 12 controls the up and down movement of the fixed clamping plate 8. The second connecting rod 15 is fixed to both ends of the positioning plate 2 with the first connecting rod 14. The second bracket 16 supports the second electric telescopic rod. The height of the moving clamping plate 9 is adjusted by the second electric telescopic rod. When the moving clamping plate 9 clamps, the cylinder 18 is activated, and the telescopic rod 19 drives the moving clamping plate 9 to move, thereby achieving clamping and fixing. The arc plate conforms to the curvature of the surface of the tank 1, making the clamping more fitting. The support leg 20 keeps the bottom plate of the tank 1 a certain distance from the ground. The anti-slip layer increases the friction at the clamping point, making it less likely to shift after clamping.

[0043] In this invention, the positioning platform 4 and its components move towards the tank bottom plate. The radar distance sensor 5 detects the distance between itself and the tank bottom plate surface in real time. When the distance reaches a preset value, such as 200mm, the feedback signal stops the electric push rod 3. Subsequently, the angle of the electric hinge seat 6 is adjusted so that the ultrasonic probe 7 is aligned with the tank bottom plate surface at the optimal incident angle. At this time, the distance between the ultrasonic probe 7 and the tank bottom plate is precisely fixed. The ultrasonic probe 7 is electrically connected to the ultrasonic testing equipment 10. The ultrasonic testing equipment 10 excites the ultrasonic probe 7 to emit ultrasonic waves and receives the echo signals. After processing, a two-dimensional defect image of the area to be tested is generated. The operator compares this image with the standard defect map database pre-stored in the ultrasonic testing equipment 10 to determine the degree of corrosion of the defect. Through the symmetrically distributed arc-shaped fixed clamping plates and moving clamping plates, combined with the cylinder-driven clamping mechanism, vertical storage tanks of different diameters can be stably clamped. The device is highly versatile and easy to install and disassemble. It can accurately and stably fix the ultrasonic probe at a position 200mm away from the detection point, ensuring that the conditions for each test are completely consistent with the conditions when the standard database was established. This makes the comparison results between the actual test image and the standard defect image more accurate. Before installation, the first electric telescopic rod 12 is in the retracted state. The first bracket 13 is connected and supported by the first connecting rod 14. The telescopic control of the first electric telescopic rod 12 controls the up and down movement of the fixed clamping plate 8. The second connecting rod 15 is fixed to both ends of the positioning plate 2 with the first connecting rod 14. The second bracket 16 supports the second electric telescopic rod. The height of the moving clamping plate 9 is adjusted by the second electric telescopic rod. When the moving clamping plate 9 clamps, the cylinder 18 is activated, and the telescopic rod 19 drives the moving clamping plate 9 to move, thereby achieving clamping and fixing. The arc plate fits the curvature of the surface of the tank body 1, making the clamping more snug. The anti-slip layer increases the friction at the clamping point, making it less likely to shift after clamping.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tank defect ultrasonic detection and positioning device, comprising a tank (1), characterized in that: The bottom of the tank (1) is provided with a positioning plate (2), the top of the positioning plate (2) is fixedly connected with an electric push rod (3), the top of the electric push rod (3) is fixedly connected with a positioning platform (4), the top of the positioning platform (4) is fixedly connected with a radar distance sensor head (5), the top of the positioning platform (4) is fixedly connected with an electric hinge seat (6), the inner wall of the electric hinge seat (6) is rotatably connected with an ultrasonic probe (7), one side of the tank (1) is provided with a fixed clamping plate (8), the other side of the tank (1) is provided with a movable clamping plate (9), and one side of the tank (1) is provided with an ultrasonic testing host (10).

2. The ultrasonic detection and positioning device for tank defects according to claim 1, characterized in that: A first frame plate (11) is fixedly connected to one side of the fixed clamping plate (8), and a first electric telescopic rod (12) is fixedly connected to the bottom of the first frame plate (11).

3. The ultrasonic detection and positioning device for tank defects according to claim 2, characterized in that: The bottom of the first electric telescopic rod (12) is fixedly connected to a first bracket (13), and a first connecting rod (14) is fixedly connected to one side of the first bracket (13).

4. The ultrasonic detection and positioning device for tank defects according to claim 3, characterized in that: One end of the first connecting rod (14) is fixedly connected to the positioning plate (2), and the other end of the positioning plate (2) is fixedly connected to the second connecting rod (15).

5. The ultrasonic detection and positioning device for tank defects according to claim 4, characterized in that: One end of the second connecting rod (15) is fixedly connected to a second bracket (16), and the top of the second bracket (16) is fixedly connected to a second electric telescopic rod.

6. The ultrasonic detection and positioning device for tank defects according to claim 5, characterized in that: The top of the second electric telescopic rod is fixedly connected to a second frame plate (17), and a cylinder (18) is fixedly connected to one side of the second frame plate (17).

7. The ultrasonic detection and positioning device for tank defects according to claim 6, characterized in that: The output end of the cylinder (18) is fixedly connected to a telescopic rod (19), and one end of the telescopic rod (19) is fixedly connected to the movable clamping plate (9).

8. The ultrasonic detection and positioning device for tank defects according to claim 1, characterized in that: The fixed clamping plate (8) and the movable clamping plate (9) are the same size, and both the fixed clamping plate (8) and the movable clamping plate (9) are arc-shaped plates.

9. The ultrasonic detection and positioning device for tank defects according to claim 1, characterized in that: The outer surface of the tank (1) is fixedly connected with four support legs (20).

10. The ultrasonic detection and positioning device for tank defects according to claim 1, characterized in that: The fixed clamping plate (8) and the movable clamping plate (9) are distributed symmetrically, and the inner walls of the fixed clamping plate (8) and the movable clamping plate (9) are provided with anti-slip layers.

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