Detection structure and detection device

By designing a detection structure including a bracket, a metal corrosion detector and a telescopic part, using ultrasonic detection technology and the telescopic part of the telescopic part, the problems of poor safety and low efficiency of the internal wall corrosion inspection of the nuclear power plant storage tank are solved, and automated detection is realized, improving the safety and efficiency of the inspection.

CN119618967AActive Publication Date: 2025-03-14CHINA NUCLEAR POWER TECH RES INST CO LTD +1
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Patent Information

Application Number
CN202411678825.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-03-14
Estimated Expiration
2044-11-22

AI Technical Summary

Technical Problem

The corrosion inspection of the inner wall of the oil storage tank of the emergency diesel engine system of the nuclear power plant has problems of poor safety and low efficiency. The existing technology mainly relies on manual entry of the storage tank for visual inspection.

Method used

A detection structure is designed, including a bracket, a metal corrosion detector and a telescopic component. Using ultrasonic detection technology and the telescopic function of the telescopic component, it can automatically adapt to the shape of the inner wall of the storage tank and realize the detection of the corrosion conditions of the inner wall of the storage tank.

Benefits of technology

It improves the safety and efficiency of corrosion detection in the inner wall of the storage tank, can automatically adapt to the shape of the inner wall of the storage tank, realizes all-round inspection of the inner wall of the storage tank, replaces manual inspection, and reduces safety hazards.

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Abstract

The invention relates to a detection structure and a detection device. The detection structure comprises a support, a metal corrosion detector and a telescopic piece. The metal corrosion detector is arranged on the support, and the telescopic piece is arranged on the support and telescopically arranged in the first direction. Wherein the metal corrosion detector comprises a detection probe, one end of the detection probe along the first direction is provided with a detection end, the same end of the telescopic piece along the first direction is provided with a propping end, and the telescopic piece is arranged farther away from the bracket than the detection end and the propping end along the first direction and protrudes out of the bracket. The detection structure can be suitable for detecting planes and curved surfaces and can replace manual detection, so that the safety and the detection efficiency of corrosion detection of the storage tank can be improved.
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Description

Technical Field

[0001] The present application relates to the technical field of storage tanks, and in particular to a detection structure and a detection device. Background Art

[0002] The oil storage of the emergency diesel engine system of a nuclear power plant is usually stored in a tank for long-term standby. The safe operation of the tank is a prerequisite for the normal operation of the emergency diesel engine system of a nuclear power plant. The potential safety hazard of the tank comes from leakage caused by corrosion and cracks on the side walls of the tank. Therefore, it is necessary to regularly check the corrosion of the tank for safety evaluation. In the related technology, the tank is emptied and the internal wall corrosion inspection (visual inspection) is performed manually, which has problems such as poor safety and low efficiency. Summary of the invention

[0003] Based on this, it is necessary to provide a detection structure and a detection device to address the problems of poor safety and low efficiency in manual inspection of the inner wall corrosion of storage tanks.

[0004] According to the first aspect of the present application, a detection structure is provided, including a bracket, a metal corrosion detector and a telescopic member. The metal corrosion detector is arranged on the bracket, and the telescopic member is arranged on the bracket and is telescopically arranged along a first direction. The metal corrosion detector includes a detection probe, and the detection probe has a detection end at one end along the first direction, and the telescopic member has a contact end at the same end along the first direction. Along the first direction, compared with the detection end, the contact end is arranged farther away from the bracket and protrudes out of the bracket.

[0005] In the technical solution of the present application, since the abutting end is arranged farther away from the bracket than the detecting end along the first direction, and the abutting end protrudes out of the bracket, the abutting end of the telescopic member can abut against the inner wall of the detection tank along the first direction, and the detecting end of the metal corrosion detector is arranged toward the inner wall of the tank, and has a certain distance from the inner wall of the tank in the first direction, so as to facilitate the use of the metal corrosion detector to detect the corrosion condition of the inner wall of the tank. Combined with the telescopic member being able to telescope along the first direction, when the inner wall of the tank is constructed as an arc surface, the telescopic member can be adjusted for applicability according to the arc surface, so that the telescopic member can well abut against the arc surface of the detection tank, thereby maintaining a certain distance between the detecting end of the metal corrosion detector and the inner wall of the tank. Therefore, the detection structure can be applicable to detecting planes and curved surfaces, and can replace manual detection, thereby improving the safety and detection efficiency of corrosion detection of the tank.

[0006] In one embodiment, the detection probe is an ultrasonic phased array. The detection structure of the present application adopts ultrasonic detection technology, which mainly utilizes the propagation and reflection of ultrasonic waves in the medium, and clearly identifies the defects on the surface of the detected equipment (such as the inner wall of the storage tank) according to the attenuation degree of ultrasonic waves, and can effectively detect the buried defects in the weld inside the storage tank, etc. In addition, the diesel in the storage tank can be used as a coupling agent, and no other coupling agents need to be applied. In addition, the ultrasonic phased array can also be used to improve the detection accuracy and efficiency of corrosion detection of storage tanks.

[0007] In one embodiment, the metal corrosion detector includes a plurality of detection probes, and the detection structure includes a plurality of telescopic members corresponding to the plurality of detection probes. In this way, the abutting end of each telescopic member can abut against the inner wall of the detection tank along the first direction, thereby making the distances between the detection ends of the plurality of detection probes and the inner wall of the tank tend to be equal, thereby improving the detection accuracy of the corrosion detection of the tank.

[0008] In one embodiment, the telescopic member includes a rod body and an elastic member, the rod body is movably arranged on the bracket along a first direction, one end of the elastic member is connected to the rod body, and the other end of the elastic member is connected to the bracket; the abutment end is arranged on the rod body. In this way, when the detection structure is used, the abutment end of the rod body abuts against the inner wall of the detection tank along the first direction, so that the elastic member is in a compressed state. When the inner wall of the tank is constructed as an arc surface, the rod body can automatically perform adaptive adjustment, so that the detection end of the metal corrosion detector and the inner wall of the tank are kept at a suitable interval, which is conducive to using the metal corrosion detector to detect the corrosion of the inner wall of the tank.

[0009] In one embodiment, the detection structure further includes at least one sleeve disposed on the bracket, the sleeve is disposed corresponding to the telescopic member, and the rod body is slidably connected to the corresponding sleeve along the first direction. In this way, the rod body can move more smoothly along the first direction relative to the bracket, which can improve the stability of the rod body and further improve the reliability of the detection structure.

[0010] In one embodiment, the detection structure further includes a plurality of sleeves, and the elastic member is limited between two corresponding sleeves along the first direction, so that the elastic member can be stretched or contracted more stably along the first direction, and the rod body can be telescopically moved more stably along the first direction, thereby improving the reliability of the detection structure.

[0011] In one embodiment, the detection structure further includes a first driving member, which is connected to the bracket to drive the bracket to move along the first direction. In this way, the first driving member can be used to drive the bracket to move along the first direction, thereby driving the metal corrosion detector and the telescopic member to move along the first direction, and the positions of the metal corrosion detector and the telescopic member along the first direction can be adjusted, so that a suitable interval can be maintained between the detection end of the metal corrosion detector and the inner wall of the storage tank.

[0012] In one embodiment, the detection structure further includes a second driving member, which is connected to the bracket to drive the bracket to rotate around an axis parallel to the first direction. In this way, the second driving member can be used to drive the bracket to rotate around an axis parallel to the first direction, thereby driving the metal corrosion detector and the telescopic member to rotate around an axis parallel to the first direction, and the detection position of the metal corrosion detector can be adjusted, and the detection angle of the metal corrosion detector can also be adjusted, so that multiple detection probes of the metal corrosion detector can be arranged at intervals along the extension direction of the inner wall of the storage tank, so that the spacing between the multiple detection probes and the inner wall of the storage tank is consistent, and then it is convenient to use multiple detection probes to more clearly confirm the defect quality, which is conducive to improving the detection accuracy of the metal corrosion detector.

[0013] In one embodiment, the detection structure further includes a third driving member, which is connected to the bracket to drive the bracket to rotate around an axis parallel to the second direction; wherein the detection structure is used to detect a storage tank; the first direction and the second direction are perpendicular to each other, and the second direction is parallel to the axis direction of the storage tank. In this way, the bracket can be driven to rotate around an axis parallel to the second direction by the third driving member, thereby driving the metal corrosion detector and the telescopic member to rotate around an axis parallel to the second direction, and the position of the detection probe along the extension direction of the inner wall of the storage tank can be adjusted, so that multiple detection probes of the metal corrosion detector can be arranged at intervals along the extension direction of the inner wall of the storage tank, and the spacing between the multiple detection probes and the inner wall of the storage tank is also consistent, which is conducive to improving the detection accuracy of the multiple detection probes.

[0014] According to a second aspect of the present application, a detection device is provided, comprising a robot and a detection structure of any one of the above embodiments; wherein the detection structure is arranged on the robot. By mounting the detection structure on the robot, the robot drives the detection structure to move in the tank along the axis direction of the tank or along the extension direction of the inner wall of the tank, thereby realizing full-area detection of the tank bottom and tank wall of a horizontal tank without draining the oil, and realizing qualitative and quantitative damage defect inspection of the inner wall of the tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a detection device and a storage tank according to an embodiment of the present application is shown.

[0016] Figure 2 Shows Figure 1 Side view of.

[0017] Figure 3 A schematic structural diagram of a detection structure according to an embodiment of the present application is shown.

[0018] Figure 4 An exploded schematic diagram of a detection structure according to an embodiment of the present application is shown.

[0019] Figure 5 A top view of a second driving member, a bracket and a metal corrosion detector according to an embodiment of the present application is shown.

[0020] Figure 6 A schematic structural diagram of a storage tank according to an embodiment of the present application is shown.

[0021] Figure numerals: 10, detection structure; 100, bracket; 101, mounting hole; 110, sleeve; 200, metal corrosion detector; 210, detection probe; 201, detection end; 300, telescopic member; 301, interference end; 310, rod body; 320, elastic member; 410, first driving member; 420, guide rail; 510, second driving member; 520, mounting frame; 20, storage tank; 21, manhole; 30, robot. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0023] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0024] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0026] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0028] The oil storage of the nuclear power plant emergency diesel engine system needs to be stored in tanks for long-term standby storage. The safe operation of the tanks is a prerequisite for the normal operation of the emergency diesel engine system.

[0029] The potential safety hazard of storage tanks comes from leakage caused by corrosion and cracks on the side walls of the tanks. Therefore, it is necessary to regularly check the corrosion of the tanks, conduct safety assessments, and take necessary repairs on deteriorated parts / components to prevent fuel leakage and safety accidents and environmental pollution caused by leakage. In related technologies, the tanks are emptied and manual inspections (visual inspections) of the inner wall corrosion are performed, which has problems such as poor safety and low efficiency.

[0030] In order to solve the above technical problems, the present application designs a detection structure and a detection device, which can detect the corrosion of the inner wall of the storage tank and improve the safety and efficiency of the detection.

[0031] Figure 1 A schematic diagram of the structure of a detection device and a storage tank according to an embodiment of the present application is shown. Figure 2 Shows Figure 1 Side view of Figure 3 A schematic structural diagram of a detection structure according to an embodiment of the present application is shown.

[0032] See also Figure 1-Figure 3 An embodiment of the present application provides a detection structure 10, including a bracket 100, a metal corrosion detector 200 and a telescopic member 300.

[0033] The metal corrosion detector 200 and the telescopic member 300 are respectively arranged on the bracket 100, and the telescopic member 300 is telescopically arranged along the first direction F1.

[0034] The detection structure 10 is used to detect the storage tank 20. Specifically, the storage tank 20 contains diesel. When the detection structure 10 detects the bottom wall of the storage tank 20, the detection structure 10 is generally placed horizontally (eg Figure 1 As shown), at this time, the first direction F1 is parallel to the gravity direction of the detection structure 10.

[0035] Of course, the first direction F1 is not limited to being parallel to the gravity direction of the detection structure 10. For example, when the storage tank 20 is placed horizontally and the detection structure 10 is not placed horizontally, the first direction F1 intersects with the axial direction of the storage tank 20 and the gravity direction of the detection structure 10 respectively.

[0036] If the inner wall of the storage tank 20 is configured as a cylindrical surface, it can be understood that the first direction F1 may be parallel to the radial direction of the storage tank 20 .

[0037] The metal corrosion detector 200 includes a detection probe 210, which has a detection end 201 at one end along the first direction F1. The telescopic member 300 has a contact end 301 at the same end along the first direction F1. Along the first direction F1, compared with the detection end 201, the contact end 301 is arranged farther away from the bracket 100 and protrudes out of the bracket 100.

[0038] Optionally, the detection probe 210 may be an ultrasonic probe.

[0039] Taking the detection structure 10 being roughly horizontally placed and used to detect the bottom wall of the storage tank 20 as an example, at this time, the detection end 201 is located at the bottom of the metal corrosion detector 200, and the abutment end 301 is located at the bottom of the telescopic member 300. Since the abutment end 301 is arranged farther away from the bracket 100 than the detection end 201 along the first direction F1, and the abutment end 301 protrudes out of the bracket 100, the abutment end 301 of the telescopic member 300 can abut against the bottom of the inner wall of the detection storage tank 20 along the first direction F1, and the detection end 201 of the metal corrosion detector 200 is arranged toward the inner wall of the storage tank 20, and is in contact with the bottom of the inner wall of the storage tank 20 in the first direction. There is a certain interval on F1, which is convenient for using the metal corrosion detector 200 to detect the corrosion of the inner wall of the storage tank 20. Combined with the telescopic part 300, it can be telescoped along the first direction F1. Therefore, when the inner wall of the storage tank 20 is constructed as a circular arc surface, the telescopic part 300 can be adjusted for applicability according to the circular arc surface, so that the telescopic part 300 can be well in contact with the circular arc surface of the detection tank 20, thereby maintaining a certain interval between the detection end 201 of the metal corrosion detector 200 and the inner wall of the storage tank 20. Therefore, the detection structure 10 can be suitable for detecting flat surfaces and curved surfaces, and can replace manual detection, thereby improving the safety and detection efficiency of corrosion detection of the storage tank 20.

[0040] In some embodiments, the detection probe 210 is an ultrasonic phased array.

[0041] Optionally, the detection probe 210 may adopt the smallest customizable phased array ultrasonic detection module in the industry, weighing only about 500 grams, and the width of the detection probe 210 may be widened as required, thereby correspondingly increasing the detection width of the detection probe 210 .

[0042] Optionally, the bracket 100 is provided with mounting holes 101 corresponding to the detection probes 210 one by one, the mounting holes 101 are arranged through the bracket 100 along the first direction F1, and the detection probes 210 are installed and fixed at the corresponding mounting holes 101, so that the detection end 201 of the detection probe 210 is arranged toward the inner wall of the storage tank 20. For example, three detection probes 210 are provided, and three mounting holes 101 are provided on the bracket 100.

[0043] The detection structure 10 of the present application adopts ultrasonic detection technology, which mainly utilizes the propagation and reflection of ultrasonic waves in the medium, and clearly identifies the defects on the surface of the detected equipment (such as the inner wall of the storage tank 20) ​​according to the attenuation degree of ultrasonic waves, and can effectively detect the buried defects in the weld inside the storage tank 20. In addition, the diesel in the storage tank 20 can be used as a coupling agent, and no other coupling agents need to be applied. In addition, the ultrasonic phased array can also be used to improve the detection accuracy and detection efficiency of the corrosion detection of the storage tank 20.

[0044] In some embodiments, please refer to Figure 3 and Figure 4 The metal corrosion detector 200 includes a plurality of detection probes 210 , and the detection structure 10 includes a plurality of telescopic members 300 corresponding to the plurality of detection probes 210 .

[0045] By way of example, three detection probes 210 are provided and six telescopic members 300 are provided.

[0046] In this way, the abutting end 301 of each telescopic member 300 can abut against the inner wall of the detection tank 20 along the first direction F1, so that the distances between the detection ends 201 of multiple detection probes 210 and the inner wall of the tank 20 tend to be equal, thereby improving the detection accuracy of the corrosion detection of the tank 20.

[0047] In some embodiments, the telescopic member 300 includes a rod body 310 and an elastic member 320 . The rod body 310 is movably arranged on the bracket 100 along the first direction F1 . One end of the elastic member 320 is connected to the rod body 310 , and the other end of the elastic member 320 is connected to the bracket 100 . The interference end 301 is arranged on the rod body 310 .

[0048] In this way, when the detection structure 10 is in use, the abutting end 301 of the rod body 310 abuts against the inner wall of the detection tank 20 along the first direction F1, so that the elastic member 320 is in a compressed state. When the inner wall of the tank 20 is constructed as an arc surface, the rod body 310 can automatically perform adaptive adjustment so that a suitable interval is maintained between the detection end 201 of the metal corrosion detector 200 and the inner wall of the tank 20, which is conducive to using the metal corrosion detector 200 to detect the corrosion condition of the inner wall of the tank 20.

[0049] In this embodiment, the detection structure 10 further includes at least one sleeve 110 disposed on the bracket 100 . The sleeve 110 is disposed corresponding to the telescopic member 300 . The rod body 310 is slidably connected to the corresponding sleeve 110 along the first direction F1 .

[0050] In this way, the rod body 310 can move more smoothly along the first direction F1 relative to the bracket 100 , thereby improving the stability of the rod body 310 and further improving the reliability of the detection structure 10 .

[0051] In this embodiment, the detection structure 10 further includes a plurality of sleeves 110 , and along the first direction F1 , the elastic member 320 is limited between two corresponding sleeves 110 .

[0052] The elastic member 320 can be stretched or contracted more stably along the first direction F1 , thereby enabling the rod body 310 to telescope and move more stably along the first direction F1 , thereby improving the reliability of the detection structure 10 .

[0053] In some embodiments, the detection structure 10 further includes a first driving member 410 , which is connected to the bracket 100 to drive the bracket 100 to move along the first direction F1 .

[0054] The first driving member 410 may be a motor or a cylinder. For example, the first driving member 410 is a cylinder, and a stroke of the cylinder along the first direction is 0 mm-40 mm.

[0055] The detection structure 10 further includes a guide rail 420 . The first driving member 410 is slidably connected to the guide rail 420 . The first driving member 410 is used to drive the guide rail 420 to move in a first direction F1 . The bracket 100 is disposed on the guide rail 420 .

[0056] Specifically, the first driving member 410 and the guide rail 420 are combined to form a pneumatic slide.

[0057] In this way, the first driving member 410 can be used to drive the bracket 100 to move along the first direction F1, thereby driving the metal corrosion detector 200 and the telescopic member 300 to move along the first direction F1. The positions of the metal corrosion detector 200 and the telescopic member 300 along the first direction F1 can be adjusted, and a suitable distance can be maintained between the detection end 201 of the metal corrosion detector 200 and the inner wall of the storage tank 20.

[0058] In some embodiments, the detection structure 10 further includes a second driving member 510 , which is connected to the bracket 100 to drive the bracket 100 to rotate around an axis parallel to the first direction F1 .

[0059] The second driving member 510 can be a motor or a cylinder. For example, the second driving member 510 is a swing cylinder, and the stroke of the swing cylinder is 0° to 90° (can be combined with Figure 5 to understand).

[0060] Specifically, the second driving member 510 is connected to the guide rail 420 through the mounting frame 520 , and the bracket 100 is disposed on the output end of the second driving member 510 .

[0061] In this way, the second driving member 510 can be used to drive the bracket 100 to rotate around an axis parallel to the first direction F1, thereby driving the metal corrosion detector 200 and the telescopic member 300 to rotate around an axis parallel to the first direction F1. The detection position of the metal corrosion detector 200 can be adjusted, and the detection angle of the metal corrosion detector 200 can also be adjusted, so that the multiple detection probes 210 of the metal corrosion detector 200 can be arranged at intervals along the extension direction of the inner wall of the storage tank 20, so that the distance between the multiple detection probes 210 and the inner wall of the storage tank 20 remains consistent, and then it is convenient to use the multiple detection probes 210 to more clearly confirm the defect quality, which is beneficial to improve the detection accuracy of the metal corrosion detector 200.

[0062] In some embodiments, the detection structure 10 further includes a third driving member (not shown in the figure), which is connected to the bracket 100 to drive the bracket 100 to rotate around an axis parallel to the second direction F2. The first direction F1 and the second direction F2 are perpendicular to each other, and the second direction F2 is parallel to the axis direction of the storage tank 20.

[0063] In this way, the third driving member can be used to drive the bracket 100 to rotate around an axis parallel to the second direction F2, thereby driving the metal corrosion detector 200 and the telescopic member 300 to rotate around an axis parallel to the second direction F2. The position of the detection probe 210 along the extension direction of the inner wall of the storage tank 20 can be adjusted, and the multiple detection probes 210 of the metal corrosion detector 200 can be arranged at intervals along the extension direction of the inner wall of the storage tank 20. It is also convenient to keep the distance between the multiple detection probes 210 and the inner wall of the storage tank 20 consistent, which is beneficial to improving the detection accuracy of the multiple detection probes 210.

[0064] The present application also provides a detection device, which includes a detection structure 10 and a robot 30 of any of the above-mentioned embodiments, wherein the detection structure 10 is disposed on the robot 30. By mounting the detection structure 10 on the robot 30, the detection structure 10 can be driven by the robot 30 to move in the storage tank 20 along the axial direction of the storage tank 20 or along the extension direction of the inner wall of the storage tank 20, thereby achieving full-area detection of the bottom and tank wall of the horizontal storage tank 20 without draining the oil, and realizing qualitative and quantitative damage defect inspection of the inner wall of the storage tank 20.

[0065] like Figure 6 As shown, a manhole 21 is provided on the top of the storage tank 20, and the detection device can be hoisted by a hoisting device (such as a crane). In this way, the hoisting device can hoist the detection device into the storage tank 20 through the manhole 21, so that the detection structure 10 can be used to detect the entire area of ​​the tank bottom and tank wall of the horizontal storage tank 20.

[0066] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A detection structure, characterized in that: include: Bracket; A metal corrosion detector is arranged on the bracket; and A telescopic member is disposed on the bracket and is telescopically arranged along a first direction; Among them, the metal corrosion detector includes a detection probe, the detection probe has a detection end at one end along the first direction, and the telescopic part has a contact end at the same end along the first direction. Along the first direction, compared with the detection end, the contact end is arranged farther away from the bracket and protrudes out of the bracket.

2. The detection structure according to claim 1, characterized in that: The detection probe is an ultrasonic phased array.

3. The detection structure according to claim 1, characterized in that: The metal corrosion detector includes a plurality of the detection probes, and the detection structure includes a plurality of the telescopic parts corresponding to the plurality of the detection probes.

4. The detection structure according to any one of claims 1 to 3, characterized in that: The telescopic member comprises a rod body and an elastic member, the rod body is movably arranged on the bracket along the first direction, one end of the elastic member is connected to the rod body, and the other end of the elastic member is connected to the bracket; The abutment end is arranged on the rod body.

5. The detection structure according to claim 4, characterized in that: The detection structure further includes at least one sleeve disposed on the bracket, the sleeve being disposed corresponding to the telescopic member, and the rod body being slidably connected to the corresponding sleeve along the first direction.

6. The detection structure according to claim 5, characterized in that: The detection structure further includes a plurality of the sleeves, and along the first direction, the elastic member is limited between two corresponding sleeves.

7. The detection structure according to any one of claims 1 to 3, characterized in that: The detection structure further includes a first driving member, which is connected to the bracket to drive the bracket to move along the first direction.

8. The detection structure according to any one of claims 1 to 3, characterized in that: The detection structure further includes a second driving member, which is connected to the bracket to drive the bracket to rotate around an axis parallel to the first direction.

9. The detection structure according to any one of claims 1 to 3, characterized in that: The detection structure further includes a third driving member, wherein the third driving member is connected to the bracket to drive the bracket to rotate around an axis parallel to the second direction; Wherein, the detection structure is used to detect storage tanks; The first direction and the second direction are perpendicular to each other, and the second direction is parallel to the axial direction of the storage tank.

10. A detection device, characterized in that: include: robot; and The detection structure according to any one of claims 1 to 9; Wherein, the detection structure is arranged on the robot.

Citation Information

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