Steel lining flaw detection device

Abstract

The invention discloses a steel lining flaw detection device, and relates to the technical field of nondestructive testing, the steel lining flaw detection device comprises a moving assembly and an auxiliary adsorption assembly, the moving assembly comprises a vehicle body, a magnetic induction sensor and moving wheels, the magnetic induction sensor is arranged on the vehicle body, and the moving wheels are rotatably arranged on the vehicle body. The auxiliary adsorption assembly comprises a driving part, a lifting support and an auxiliary adsorption wheel, the driving part is arranged on the vehicle body and connected to the lifting support, and the lifting support is rotationally connected with the auxiliary adsorption wheel and can drive the auxiliary adsorption wheel to ascend and descend. The magnetic induction sensor is used for generating electromagnetic induction with the steel lining of the hydrogen storage bank, so that whether the detection part of the steel lining has defects or not can be identified by analyzing the magnetic field change of the steel lining. The vehicle body is attracted to the circular inner wall of the steel lining to walk through the moving wheels, and when the vehicle body travels to be close to the top of the steel lining, the lifting support can be controlled to descend through the driving piece to drive the auxiliary attraction wheels to magnetically attract the inner wall of the steel lining so as to assist the vehicle body to be attracted to the top wall of the steel lining, and the vehicle body is prevented from falling off easily.

Description

Technical Field

[0001] The present invention relates to the technical field of nondestructive testing, and particularly relates to a steel lining flaw detection device. Background Art

[0002] Hydrogen energy is regarded as an important future energy carrier due to its clean and efficient characteristics. With the wide application of hydrogen energy, the safety of hydrogen storage tanks is of crucial importance. Large-diameter rock cavern hydrogen storage tanks are widely used because of their large storage capacity and good stability. The safety of the steel lining inside directly relates to the safety and stability of the hydrogen storage tank. Therefore, it is necessary to regularly detect the steel lining of the hydrogen storage tank. Currently, the main detection method for the steel lining of large-diameter rock cavern hydrogen storage tanks is the magnetic flux leakage detection technology. It is a non-destructive testing technology that identifies defects by analyzing the magnetic field changes in steel materials, and has the advantages of being fast, accurate, and non-destructive.

[0003] However, the existing magnetic flux leakage detection equipment still has deficiencies. For example, it only relies on its own rolling wheels to adsorb to the steel lining. When the magnetic flux leakage detection equipment passes through the top of the steel lining, it may fall off easily due to insufficient magnetic suction, which affects the detection, and at the same time, the magnetic flux leakage detection equipment is easily damaged. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies, and propose a steel lining flaw detection device to solve the technical problems in the prior art that the magnetic flux leakage detection equipment only relies on its own rolling wheels to adsorb to the steel lining. When the magnetic flux leakage detection equipment passes through the top of the steel lining, it may fall off easily due to insufficient magnetic suction, which affects the detection, and at the same time, the magnetic flux leakage detection equipment is easily damaged.

[0005] To achieve the above technical purpose, the present invention adopts the following technical solutions: The present invention provides a steel lining flaw detection device, including: A moving component, including a vehicle body, a magnetic induction sensor, and moving wheels. The magnetic induction sensor is arranged on the vehicle body, and the moving wheels are rotatably arranged on the vehicle body and can adsorb to the steel lining; and An auxiliary adsorption component, including a driving member, a lifting bracket, and auxiliary adsorption wheels. The auxiliary adsorption wheels are rotatably connected to the lifting bracket and can adsorb to the steel lining. The driving member is connected to the vehicle body and the lifting bracket, and can drive the auxiliary adsorption wheels to lift through the lifting bracket.

[0006] In some embodiments, the auxiliary adsorption wheels include a first adsorption wheel and a second adsorption wheel that can adsorb to the steel lining. The first adsorption wheel and the second adsorption wheel are respectively rotatably arranged on both sides of the lifting bracket.

[0007] In some embodiments, the lifting bracket has a first extension part and a second extension part which are arranged at intervals. The auxiliary adsorption wheel is located between the first extension part and the second extension part, and both sides of the auxiliary adsorption wheel are rotatably connected to the first extension part and the second extension part respectively.

[0008] In some embodiments, the lifting bracket is slidably connected to the vehicle body. The auxiliary adsorption assembly further includes a buffer spring which connects the vehicle body and the lifting bracket and can accumulate elastic force when the auxiliary adsorption wheel disengages from the steel lining.

[0009] In some embodiments, the magnetic induction sensor includes a first sensor and a second sensor, and the detection sensitivity of the second sensor is higher than that of the first sensor.

[0010] In some embodiments, the steel lining flaw detection device further includes an attitude adjustment assembly which includes an adjustment platform and an adjustment cylinder. The adjustment platform is connected to the magnetic induction sensor. One side of the adjustment platform is rotatably connected to the vehicle body, and the adjustment cylinder is arranged on the vehicle body and connected to the other side of the adjustment platform.

[0011] In some embodiments, the steel lining flaw detection device further includes a lifting assembly which includes a lifting hydraulic pump and a lifting member. The lifting member is slidably arranged on the vehicle body and connected to the moving wheel, and the lifting hydraulic pump is arranged on the vehicle body and connected to the lifting member.

[0012] In some embodiments, the lifting assembly further includes a driving motor which is rotatably connected to the moving wheel to drive the moving wheel to rotate, and the lifting member is connected to the driving motor.

[0013] In some embodiments, the auxiliary adsorption assemblies are arranged at both opposite ends of the vehicle body in its moving direction.

[0014] In some embodiments, the steel lining flaw detection device further includes an interaction terminal which has a display screen and is wirelessly connected to the magnetic induction sensor.

[0015] Compared with the prior art, the magnetic induction sensor of the steel lining flaw detection device provided by the present invention is used to generate electromagnetic induction with the steel lining of the hydrogen storage tank, so as to identify whether there are defects in the detected part of the steel lining by analyzing the magnetic field change of the steel lining, and provide guiding reference data for the safety of the hydrogen storage tank. The vehicle body is adsorbed on the circular inner wall of the steel lining by the moving wheels and travels. When the vehicle body travels to near the top of the steel lining, the lifting bracket can be controlled to descend through the driving member, driving the auxiliary adsorption wheel to magnetically adsorb the inner wall of the steel lining, so as to assist the vehicle body to be adsorbed on the top wall of the steel lining and prevent the vehicle body from easily falling off. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram when the steel lining flaw detection device provided by the embodiment of the present invention walks on the inner wall of the steel lining; Figure 2 It is a schematic structural diagram of the steel lining flaw detection device from one perspective of the present invention; Figure 3 It is a schematic structural diagram of the steel lining flaw detection device from another perspective of the present invention; Figure 4 It is a schematic internal structure diagram of the steel lining flaw detection device provided by the embodiment of the present invention; Figure 5 It is a schematic structural diagram of the lifting bracket and the auxiliary adsorption wheel connected according to another embodiment of the present invention; Figure 6 It is a schematic structural diagram of the adjustment platform and the corresponding components connected provided by the embodiment of the present invention; Figure 7 It is a schematic structural diagram of the interaction terminal provided by the embodiment of the present invention. Detailed implementation manners

[0017] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] In order to solve the technical problem in the prior art that the magnetic flux leakage detection device only relies on its own rolling wheels to adsorb on the steel lining, and when the magnetic flux leakage detection device passes through the top of the steel lining, it may fall off easily due to insufficient magnetic adsorption force, affecting the detection and easily damaging the magnetic flux leakage detection device, the present invention provides a steel lining flaw detection device, which can realize that the vehicle body can be adsorbed on the top wall by magnetic attraction when approaching the top wall of the steel lining, avoiding the vehicle body from falling.

[0019] It should be noted that the steel lining flaw detection device 100 described in the present invention is used for but not limited to detecting steel linings, etc. For the convenience of description, in the present invention, only the case where the steel lining flaw detection device 100 is applied to detect the steel lining 200 is taken as an example for description, and the principle of the steel lining flaw detection device 100 applied to other types of equipment is substantially the same as that applied to detecting steel linings, which will not be elaborated here one by one.

[0020] Please refer to Figure 1 and Figure 2 , Figure 1The structural diagram of the steel lining flaw detection device 100 in one embodiment of the present invention includes a moving component 1 and an auxiliary adsorption component 2. The moving component 1 includes a vehicle body 11, a magnetic induction sensor 12 and a moving wheel 13. The magnetic induction sensor 12 is arranged on the vehicle body 11 and can generate electromagnetic induction with the steel lining 200 when the vehicle body 11 moves along the inside of the steel lining 200, so as to obtain the magnetic field information of the steel lining through electromagnetic induction, thereby detecting the flaws of the steel lining. The moving wheel 13 is rotatably arranged on the vehicle body 11, and the moving wheel 13 can be made of magnetic material, so that the moving wheel 13 can be adsorbed on the steel lining 200 when walking on the inner wall of the steel lining 200, so as to prevent the vehicle body from falling off when approaching the top wall of the steel lining 200.

[0021] The auxiliary adsorption assembly 2 includes a driving member 21, a lifting bracket 22 and an auxiliary adsorption wheel 23. The driving member 21 is arranged on the vehicle body 11 and connected to the lifting bracket 22. The lifting bracket 22 is rotatably connected to the auxiliary adsorption wheel 23 and can drive the auxiliary adsorption wheel 23 to rise and fall. When the vehicle body 11 moves along the inner wall of the steel lining 200 and is about to approach the top wall of the steel lining 200, the staff can control the driving member 21 to work so that the driving member 21 drives the lifting bracket 22 to rise and fall. The lifting bracket 22 drives the auxiliary adsorption wheel 23 to stick to the inner wall of the steel lining 200 and magnetically adsorbs the inner wall of the steel lining 200, which is conducive to enhancing the adsorption force between the vehicle body 11 and the inner wall of the steel lining. When the vehicle body 11 passes through the top of the inner wall of the steel lining 200, the vehicle body 11 is not easy to fall, ensuring the safety of the vehicle body 11 detecting the steel lining. After the steel lining detection is completed, the auxiliary adsorption wheel 23 can be driven to rise by the driving member 21 to separate from the inner wall of the steel lining 200, so as to facilitate the recovery of the vehicle body 11.

[0022] In one embodiment, see Figure 3 and Figure 4 The auxiliary adsorption wheel 23 includes a first adsorption wheel 231 and a second adsorption wheel 232, and the first adsorption wheel 231 and the second adsorption wheel 232 are rotatably arranged on both sides of the lifting bracket 22. In this embodiment, the first adsorption wheel 231 and the second adsorption wheel 232 can be made of magnetic materials so that they can be magnetically adsorbed to the inner wall of the steel lining 200. The first adsorption wheel 231 and the second adsorption wheel 232 are arranged on both sides of the lifting bracket 22. During the lifting process of the lifting bracket 22, the first adsorption wheel 231 and the second adsorption wheel 232 can be driven to stick to the inner wall of the steel lining 200 at the same time, so as to enhance the stability of the vehicle body 11 walking on the inner wall of the steel lining 200.

[0023] In another embodiment, see Figure 5, the lifting bracket 22 has a first extension part 221 and a second extension part 222 which are spaced apart. The auxiliary adsorption wheel 23 is located between the first extension part 221 and the second extension part 222, and both sides of the auxiliary adsorption wheel 23 are rotatably connected to the first extension part 221 and the second extension part 222 respectively. In this embodiment, another connection method of the connection between the lifting bracket 22 and the auxiliary adsorption wheel 23 is shown. There is only one adsorption wheel in this embodiment, and the length of the adsorption wheel can be appropriately set to be longer so as to increase the adsorption area between the adsorption wheel and the inner wall of the steel lining 200 and improve the stability of the connection between the vehicle body 11 and the inner wall of the steel lining 200.

[0024] In one of the embodiments, the auxiliary adsorption assembly 2 further includes a buffer spring (not shown in the figure). The lifting bracket 22 is slidably connected to the vehicle body 11. The buffer spring is connected to the vehicle body 11 and the lifting bracket 22 and can drive the auxiliary adsorption wheel 23 to abut against the steel lining. In this embodiment, by providing the buffer spring, the elastic force can be used to prevent the auxiliary adsorption wheel 23 from detaching from the inner wall of the steel lining 200, so as to further enhance the stability of the connection between the auxiliary adsorption wheel 23 and the inner wall of the steel lining 200, make the connection between the auxiliary adsorption wheel 23 and the inner wall of the steel lining 200 more stable, and make the vehicle body 11 run more stably on the inner wall of the steel lining 200.

[0025] In one of the embodiments, please refer to Figure 6 and Figure 7, the magnetic induction sensor 12 includes a first sensor 121 and a second sensor 122. The detection sensitivity of the second sensor 122 is higher than that of the first sensor 121. Both sensors can generate electromagnetic induction with the steel lining. The vehicle body 11 is also provided with a central control unit 14. The first sensor 121, the second sensor 122, and the above-mentioned driving member 21 are all connected to the central control unit 14 and are uniformly controlled by the central control unit 14. The steel lining flaw detection device 100 further includes an interaction terminal 3. The interaction terminal 3 has a display screen 31. The display screen 31 is used to display the magnetic field information of the steel lining. The staff can watch the display screen 31 to identify whether there are defects in the detected part of the steel lining by analyzing the magnetic field change of the steel lining. The interaction terminal 3 has a first antenna 32. The vehicle body 11 is provided with a second antenna 15. The second antenna 15 is connected to the central control unit 14 and is wirelessly connected to the first antenna 32 at the same time. Thus, the interaction terminal 3 is wirelessly connected to the central control unit 14 and is wirelessly connected to the magnetic induction sensor 12 through the central control unit 14, so that the magnetic field change of the steel lining detected by the electromagnetic induction between the magnetic induction sensor 12 and the steel lining can be displayed on the display screen 31. In addition, the staff can also control the driving member 21 through the interaction terminal 3 to drive the auxiliary adsorption wheel 23 to stick to the inner wall of the steel lining or separate from the inner wall of the steel lining. In addition, the staff can select the first sensor 121 or the second sensor 122 for detection according to the detection sensitivity of the on-site steel lining, so that the steel lining can be detected under a sensor with appropriate sensitivity, and the information of the steel lining can be more accurately feedback.

[0026] In one embodiment, please refer to Figure 4 , the steel lining flaw detection device 100 further includes an attitude adjustment assembly 4. The attitude adjustment assembly 4 includes an adjustment platform 41 and an adjustment cylinder 42. The adjustment platform 41 is connected to the magnetic induction sensor 12. One side of the adjustment platform 41 is rotatably connected to the vehicle body 11. The adjustment cylinder 42 is arranged on the vehicle body 11 and is rotatably connected to the other side of the adjustment platform 41. In this embodiment, the adjustment cylinder 42 has a telescopic rod and is rotatably connected to the adjustment platform 41 through the telescopic rod. When the adjustment cylinder 42 works, it can drive the telescopic rod to extend and retract to drive the adjustment platform 41 to rotate, so that one side of the adjustment platform 41 is inclined. Since the above-mentioned magnetic induction sensor 12 and other components are all arranged at the bottom of the adjustment platform 41, when the adjustment platform 41 rotates and tilts, the magnetic induction sensor 12 also tilts accordingly, thereby adjusting the magnetic field change generated by the steel lining and the magnetic induction sensor 12, so as to adjust the magnetic field change to an appropriate state and accurately identify the defects of the steel lining.

[0027] In one embodiment, please refer to Figure 4, the steel lining flaw detection device 100 further includes a lifting assembly 5. The lifting assembly 5 includes a lifting hydraulic pump 51 and a lifting member 52. The lifting member 52 is slidably disposed on the vehicle body 11 and connected to the moving wheel 13. The lifting hydraulic pump 51 is disposed on the vehicle body 11 and connected to the lifting member 52. In this embodiment, when the lifting hydraulic pump 51 is working, it can drive the lifting member 52 to lift and lower. When the lifting member 52 is lifting and lowering, it can drive the moving wheel 13 to lift and lower, so as to adjust the height of the center of gravity of the vehicle body 11. For some steel linings with larger diameters, the centrifugal force on the vehicle body 11 during movement is relatively large. The lifting hydraulic pump 51 can drive the moving wheel 13 to move closer to the vehicle body 11 to lower the center of gravity of the vehicle body 11, and the vehicle body 11 can enhance stability during the movement of the steel lining. For steel linings with smaller diameters, the center of gravity of the vehicle body 11 can be appropriately raised.

[0028] In one embodiment, please refer to Figure 4 , the lifting assembly 5 further includes a driving motor 53. The driving motor 53 is rotatably connected to the moving wheel 13 to drive the moving wheel 13 to rotate, and the lifting member 52 is connected to the driving motor 53. In this embodiment, the driving motor 53 is sleeved on the moving wheel 13 and can drive the moving wheel 13 to rotate during operation, so as to provide power for the vehicle body 11 to travel on the inner wall of the steel lining. The driving motor 53 is sleeved on the moving wheel 13, which can save the extra space occupied by the driving motor 53 and is beneficial to saving the installation space.

[0029] In one embodiment, please refer to Figure 4 , the steel lining flaw detection device 100 further includes a steering adjustment assembly 6. The steering adjustment assembly 6 includes a steering cylinder 61, a steering telescopic rod 62 and a moving bracket 63. The steering cylinder 61 is connected to the steering telescopic rod 62, the steering telescopic rod 62 is connected to the moving bracket 63, and engaging teeth 631 are provided on both sides of the moving bracket 63. The above-mentioned lifting member 52 has a driven gear 521, and the driven gear 521 meshes with the engaging teeth 631. When the steering cylinder 61 is working, it can control the steering telescopic rod 62 to extend and retract. The telescopic rod 62 drives the moving bracket 63 to swing left and right. The moving bracket 63 drives the driven gear 521 to rotate through meshing, the driven gear 521 drives the lifting member 52 to rotate, and the lifting member 52 drives the moving wheel 13 to swing left and right, so as to drive the vehicle body 11 to turn and enter the next steel lining for detection.

[0030] In one embodiment, please refer to Figure 3 , auxiliary adsorption assemblies 2 are provided at both opposite ends of the vehicle body 11 in its moving direction. During the process of the vehicle body 11 traveling on the inner wall of the steel lining, the auxiliary adsorption wheels 23 of the two auxiliary adsorption assemblies 2 can both adhere to the inner wall of the steel lining, playing a supporting role for the front and rear of the vehicle body 11, so that the vehicle body 11 travels more stably on the inner wall of the steel lining.

[0031] For a better understanding of the present invention, the following is combined with Figures 1 to 6A detailed description of the technical solution of the present invention is as follows: The magnetic induction sensor 12 of the steel liner flaw detection device 100 provided by the present invention is used to generate electromagnetic induction with the steel liner 200 of the hydrogen storage tank, so as to identify whether there are defects in the detected part of the steel liner by analyzing the magnetic field change of the steel liner, and provide guiding reference data for the safety of the hydrogen storage tank. The vehicle body 11 is adsorbed on the circular inner wall of the steel liner 200 through the moving wheels 13 and travels. When the vehicle body 11 travels to near the top of the steel liner, the lifting bracket 22 can be controlled to descend by the driving member 21, driving the auxiliary adsorption wheel 13 to magnetically adsorb the inner wall of the steel liner 200, so as to assist the vehicle body 11 to be adsorbed on the top wall of the steel liner 200 and prevent the vehicle body 11 from easily falling off.

[0032] The above specific embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A steel lining flaw detection device, characterized in that: include: The mobile assembly includes a vehicle body, a magnetic induction sensor and a moving wheel, wherein the magnetic induction sensor is arranged on the vehicle body, and the moving wheel is rotatably arranged on the vehicle body and can be adsorbed on the steel lining; and The auxiliary adsorption assembly comprises a driving member, a lifting bracket and an auxiliary adsorption wheel, wherein the auxiliary adsorption wheel is rotatably connected to the lifting bracket and can be adsorbed on the steel lining, and the driving member is connected to the vehicle body and the lifting bracket and can drive the auxiliary adsorption wheel to rise and fall via the lifting bracket.

2. The steel lining flaw detection device according to claim 1, characterized in that: The auxiliary adsorption wheel comprises a first adsorption wheel and a second adsorption wheel capable of being adsorbed on the steel liner, and the first adsorption wheel and the second adsorption wheel are rotatably disposed on both sides of the lifting bracket respectively.

3. The steel lining flaw detection device according to claim 1, characterized in that: The lifting bracket comprises a first extension portion and a second extension portion which are arranged at an interval, the auxiliary adsorption wheel is located between the first extension portion and the second extension portion, and two sides of the auxiliary adsorption wheel are rotatably connected to the first extension portion and the second extension portion respectively.

4. The steel lining flaw detection device according to claim 1, characterized in that: The lifting bracket is slidably connected to the vehicle body, and the auxiliary adsorption assembly further comprises a buffer spring, which is connected to the vehicle body and the lifting bracket and can drive the auxiliary adsorption wheel to abut against the steel liner.

5. The steel lining flaw detection device according to claim 1, characterized in that: The magnetic induction sensor includes a first sensor and a second sensor, wherein the detection sensitivity of the second sensor is higher than the detection sensitivity of the first sensor.

6. The steel lining flaw detection device according to claim 5, characterized in that: The steel lining flaw detection device also includes a posture adjustment component, which includes an adjustment platform and an adjustment cylinder. The adjustment platform is connected to the magnetic induction sensor, one side of the adjustment platform is rotatably connected to the vehicle body, and the adjustment cylinder is arranged on the vehicle body and connected to the other side of the adjustment platform.

7. The steel lining flaw detection device according to claim 1, characterized in that: The steel lining flaw detection device also includes a steering adjustment component, which includes a steering cylinder, a steering telescopic rod and a movable bracket connected in sequence. The movable bracket has a latching tooth and engages with the driven gear through the latching tooth.

8. The steel lining flaw detection device according to claim 1, characterized in that: The steel lining flaw detection device also includes a lifting assembly, which includes a lifting hydraulic pump and a lifting member. The lifting member is slidably arranged on the vehicle body and connected to the moving wheel. The lifting hydraulic pump is arranged on the vehicle body and connected to the lifting member.

9. The steel lining flaw detection device according to claim 1, characterized in that: The auxiliary adsorption components are arranged at opposite ends of the vehicle body in the moving direction.

10. The steel lining flaw detection device according to claim 1, characterized in that: The steel lining flaw detection device also includes an interactive terminal, which has a display screen and is wirelessly connected to the magnetic induction sensor.

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