Nondestructive inspection equipment

Abstract

The invention relates to the technical field of nondestructive inspection, and discloses nondestructive inspection equipment which is suitable for pipeline nondestructive inspection. Comprising a controller, a plurality of flaw detection structures and a cleaning assembly, the flaw detection structures are in communication connection with the controller, the multiple flaw detection structures are connected end to end to form an annular structure, and the diameter of the annular structure is changed by changing the number of the flaw detection structures so as to adapt to pipelines of various specifications and sizes; an annular structure formed by the flaw detection structure is arranged on the periphery of the pipeline in a sleeving mode and can slide in the length direction of the pipeline so as to achieve nondestructive detection on the periphery of the pipeline, and the cleaning assembly is arranged on the flaw detection assembly and faces the outer wall of the pipeline so as to be suitable for cleaning the periphery of the pipeline, so that impurities are prevented from being attached to the pipeline, and the detection efficiency is improved. Therefore, the defect detection precision is influenced, and the flaw detection effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of non-destructive flaw detection, and in particular to a non-destructive flaw detection device. Background Art

[0002] Nondestructive flaw detection equipment is a kind of equipment that uses acoustic emission technology for nondestructive testing. It is widely used in the industrial field, especially in construction engineering, aerospace, automobile manufacturing and other fields. By using acoustic emission flaw detection equipment, it is possible to timely and accurately detect tiny cracks, crack extension, fatigue damage and other problems inside the material, so as to carry out repairs and maintenance in time to ensure the safety and reliability of equipment and structures. The emergence of acoustic emission flaw detection equipment has greatly improved the efficiency and accuracy of detection, and brought convenience and safety to industrial production and equipment maintenance.

[0003] It is difficult to perform flaw detection on pipes of various diameters in the prior art sonic wave flaw detection equipment, which limits the scope of application of the equipment. In addition, impurities may adhere to the outer wall of the pipe. When flaw detection is performed on the pipe, impurities are easily adhered to the flaw detection equipment, thereby affecting the flaw detection effect. Summary of the invention

[0004] In view of this, the present invention provides a non-destructive flaw detection device to solve the problems of poor adaptability and poor flaw detection effect of the non-destructive flaw detection device in the prior art.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] The present invention provides a nondestructive flaw detection device, which is suitable for nondestructive testing of pipelines; the device comprises: a controller, a plurality of flaw detection structures, and a cleaning component; the flaw detection structure is communicatively connected with the controller, a plurality of the flaw detection structures can be connected end to end to form an annular structure, the annular structure can be sleeved on the outer circumference of the pipeline and can slide along the length direction of the pipeline; the cleaning component is arranged on the flaw detection component and is arranged in a direction toward the outer wall of the pipeline, and the cleaning component is suitable for cleaning the outer circumference of the pipeline.

[0007] It has the following advantages:

[0008] The flaw detection structure is communicatively connected to the controller. A plurality of flaw detection structures are provided. The plurality of flaw detection structures are connected end to end to form an annular structure. By changing the number of flaw detection structures, the diameter of the annular structure is changed to adapt to pipelines of various specifications and sizes. The annular structure formed by the flaw detection structure is sleeved on the outer circumference of the pipeline and can slide along the length direction of the pipeline to achieve non-destructive testing of the outer circumference of the pipeline. The cleaning component is arranged on the flaw detection component and is arranged toward the outer wall direction of the pipeline to be suitable for cleaning the outer circumference of the pipeline, thereby avoiding impurities adhering to the pipeline, thereby affecting the accuracy of defect detection and improving the flaw detection effect.

[0009] According to some embodiments of the present invention, the nondestructive testing equipment further comprises a lifting rod, a first end of which is fixedly connected to the outer side of any one of the testing structures, the controller is disposed on the lifting rod, and a handle is disposed at the second end of the lifting rod.

[0010] According to some embodiments of the present invention, the flaw detection structure includes: a connecting component and a detection component provided on the connecting component, the detection component is communicatively connected to the controller, the detection component is suitable for detecting defect parameters of the outer wall of the pipe and feeding back to the controller, and the detection component is located on the rear side of the cleaning component along the sliding direction of the annular structure.

[0011] According to some embodiments of the present invention, the connecting component is arc-shaped, the annular structure is in a closed circular ring shape, and the flaw detection structure further includes a guide component, which is passed through the connecting component and can slide radially along the annular structure.

[0012] According to some embodiments of the present invention, the connection assembly includes an arc-shaped support plate, a first end of the arc-shaped support plate is provided with a first plug block and a first slot that are staggered, a second end of the arc-shaped support plate is provided with a second plug block and a second slot that are staggered, the first plug block is arranged correspondingly to the second slot, and the second plug block is arranged correspondingly to the first slot, so that a plurality of the arc-shaped support plates are connected end to end to form the annular structure.

[0013] According to some embodiments of the present invention, along the sliding direction of the annular structure, a limit strip is provided at the front end of the arc-shaped support plate, and the cleaning component is buckled and connected to the limit strip; so a pull plate is provided at the front end of the limit strip, and the pull plate is connected to the limit strip through a plug column, one end of the plug column extends into the limit strip, and the other end of the plug column is fixedly connected to the pull plate, and a first elastic member is sleeved on the outer periphery of the plug column, a first end of the first elastic member abuts against the limit strip, and a second end of the first elastic member abuts against the pull plate.

[0014] According to some embodiments of the present invention, the first plug block is provided with a limiting portion, and the second slot is provided with a limiting hole, and the limiting portion and the limiting hole are correspondingly arranged to be suitable for snap-on connection.

[0015] According to some embodiments of the present invention, the arc-shaped support plate is provided with a through threaded circular hole, the guide assembly includes an adjusting rod passing through the threaded circular hole, the outer circumference of the adjusting rod is provided with scale lines, the first end of the adjusting rod is rotatably provided with a guide ball, the second end of the adjusting rod is provided with an adjusting disk, and the guide ball is arranged toward one side of the pipe.

[0016] According to some embodiments of the present invention, a limit slot is provided at the rear end of the arc-shaped support plate along the sliding direction of the annular structure, and accommodating cavities are opened on both sides of the limit slot. Limiting columns are slidably provided in the accommodating cavities, and two of the limit columns are arranged opposite to each other and one end extends into the limit slot. The detection piece is inserted into the limit slot, and the two limit columns abut against the detection piece to fix the detection piece.

[0017] According to some embodiments of the present invention, the cleaning component includes a mounting strip, the mounting strip is provided with a fixing hole, the fixing hole is coaxially arranged with the plug post, the plug post is suitable for passing through the fixing hole to fix the mounting strip in the limiting clip strip, and the inner side of the mounting strip is evenly provided with fiber bristles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 An axial view of a nondestructive flaw detection device provided in some embodiments of the present invention;

[0020] Figure 2 A structural view of a plurality of flaw detection structures and cleaning components connected and installed in some embodiments of the present invention;

[0021] Figure 3 An installation view of a single flaw detection structure and a cleaning assembly provided in some embodiments of the present invention;

[0022] Figure 4 Another view of the installation of a single flaw detection structure and a cleaning assembly provided in some embodiments of the present invention;

[0023] Figure 5 An exploded view of a single flaw detection structure and a cleaning assembly provided in some embodiments of the present invention;

[0024] Figure 6 A structural view of a connection assembly provided in some embodiments of the present invention;

[0025] Figure 7 A partial perspective view of a flaw detection structure provided in some embodiments of the present invention;

[0026] Figure 8 for Figure 7 A local schematic diagram of the location A;

[0027] Fig. 9 for Figure 7 A partial schematic diagram of point B;

[0028] Fig.10 This is a structural view of a detection member provided in some embodiments of the present invention.

[0029] Description of reference numerals:

[0030] 1. Controller; 2. Flaw detection structure; 21. Connection assembly; 22. Detection member; 23. Guide assembly; 211. Arc support plate; 212. Limiting card strip; 213. Pull plate; 214. Insertion column; 215. First elastic member; 2110. Movable cavity; 2111. First plug block; 2112. First card slot; 2113. Second plug block; 2114. Second card slot; 2115. Limiting notch; 2116. Threaded circular hole; 2117. Limiting part; 2118. Limiting hole; 2119. Accommodating cavity; 2120, limit column; 2121, spring; 2122, push plate; 2123, cross bar; 2124, adjustment column; 221, protection box; 222, sealing cover; 223, acoustic emission flaw detector; 224, adjustment part; 225, rotating shaft; 226, sleeve; 227, support rod; 228, magnetic patch; 231, adjustment rod; 232, guide ball; 233, adjustment disk; 3, cleaning component; 31, mounting strip; 32, fiber brush; 311, fixing hole; 4, lifting rod; 41, handle. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] Reference Figure 1 and Figure 2 As shown, the present invention provides a non-destructive flaw detection device, which is suitable for non-destructive testing of pipelines; it includes: a controller 1, a plurality of flaw detection structures 2, and a cleaning component 3; the flaw detection structure 2 is communicatively connected with the controller 1, and a plurality of flaw detection structures 2 can be connected end to end to form an annular structure, which can be sleeved on the outer circumference of the pipeline and can slide along the length direction of the pipeline; the cleaning component 3 is arranged on the flaw detection component and is arranged in a direction toward the outer wall of the pipeline, and the cleaning component 3 is suitable for cleaning the outer circumference of the pipeline.

[0036] Specifically, the flaw detection structure 2 is communicatively connected to the controller 1, and a plurality of flaw detection structures 2 are provided. The plurality of flaw detection structures 2 are connected end to end to form an annular structure. By changing the number of flaw detection structures 2, the diameter of the annular structure is changed to adapt to pipes of various specifications and sizes. The annular structure formed by the flaw detection structure 2 is sleeved on the outer periphery of the pipe and can slide along the length direction of the pipe to achieve non-destructive testing of the outer periphery of the pipe. The cleaning component 3 is provided on the flaw detection component and is arranged toward the outer wall direction of the pipe to be suitable for cleaning the outer periphery of the pipe, thereby avoiding impurities adhering to the pipe, thereby affecting the accuracy of defect detection and improving the flaw detection effect.

[0037] Reference Figure 1 As shown, in some embodiments of the present invention, the nondestructive testing equipment also includes a lifting rod 4, a first end of the lifting rod 4 is fixedly connected to the outer side of any detection structure 2, the controller 1 is arranged on the lifting rod 4, and a handle 41 is provided at the second end of the lifting rod 4.

[0038] Specifically, the lifting rod 4 is used to pull the annular structure to slide, so that the flaw detection structure 2 slides along the length direction of the pipeline to improve the convenience of operation. The controller 1 is arranged on the lifting rod 4, specifically, in the middle part of the lifting rod 4, to ensure the stable connection between the flaw detection structure 2 and the controller 1. A handle 41 is provided at the second end of the lifting rod 4 to improve the convenience of operation. The lifting rod 4 can be fixedly connected to the outer side of any flaw detection structure 2.

[0039] Reference Figure 2 and Figure 3 As shown, in some embodiments of the present invention, the flaw detection structure 2 includes: a connecting component 21 and a detection component 22 arranged on the connecting component 21, the detection component 22 is communicatively connected with the controller 1, the detection component 22 is suitable for detecting defect parameters of the outer wall of the pipeline and feeding back to the controller 1, and along the sliding direction of the annular structure, the detection component 22 is located on the rear side of the cleaning component 3.

[0040] Specifically, the flaw detection structure 2 includes a connection component 21 and a detection component 22. The connection component 21 is used to achieve the head-to-tail connection between the two flaw detection structures 2. The detection component 22 realizes non-destructive flaw detection. The detection component 22 is an acoustic non-destructive detection component 22. The detection component 22 transmits and receives acoustic waves, and feeds back the received acoustic wave information to the controller 1. The controller 1 processes and obtains defect parameters, thereby realizing non-destructive detection. In order to ensure the accuracy of non-destructive detection, the detection component 22 is located at the rear side of the cleaning component 3 along the sliding direction of the annular structure to facilitate detection after cleaning.

[0041] Reference Fig.10 As shown, it can be understood that the detection member 22 includes a protective box 221, which is fixedly connected to the outside of the connection component 21, and the protective box 221 is provided with an inner cavity, and a rotating shaft 225 is rotatably provided between the opposite side walls of the inner cavity, and a sleeve 226 is fixedly provided on the outside of the rotating shaft 225, and a support rod 227 is fixedly provided in the middle of the sleeve 226, and the branch pipe passes through the connection component 21 to extend to the inside, and an acoustic wave emission flaw detector 223 is fixedly provided at one end of the support rod 227 and the sleeve 226 to realize acoustic wave flaw detection of the pipeline. One end of the rotating shaft 225 passes through the side wall of the protective box 221 to extend to the outside of the protective box 221, and an adjusting part 224 is provided, and the angle adjustment of the acoustic wave emission flaw detector 223 is realized by rotating the adjusting part 224 to ensure the accuracy of non-destructive testing of the pipeline.

[0042] A sealing cover 222 is provided on one side of the protection box 221, and the sealing cover 222 is fixed to the protection box 221 by magnetism. Specifically, the protection box 221 is provided with a magnetic patch 228, and the side of the sealing cover 222 facing the protection box 221 is a magnetic metal strip, and a pull ring is provided on the sealing cover 222. The provision of the sealing cover 222 can realize the wall of the inner cavity of the protection box 221, thereby realizing the installation and adjustment of the rotating shaft 225, and improving convenience.

[0043] In some embodiments of the present invention, the connecting component 21 is arc-shaped, the annular structure is a closed circular ring, and the flaw detection structure 2 further includes a guide component 23, which is inserted into the connecting component 21 and can slide radially along the annular structure.

[0044] Specifically, the connection component 21 can be set to an arc shape or a square shape according to the shape of the pipeline. When the pipeline is a circular tube structure, the connection component 21 is set in an arc shape, and the ring shape is a closed ring shape. The setting of the closed ring structure can realize all-round detection of the outer wall of the pipeline, avoiding the need to rotate the ring structure, and reducing the difficulty of operation. During the sliding process of the ring structure along the length direction of the pipeline, the ring structure is prevented from scratching and colliding with the side wall of the pipeline, affecting the detection quality, and avoiding damage to the flaw detection structure 2. By setting a guide component 23, wherein the guide component 23 is penetrated on the connection component 21, and can slide along the radial direction of the ring structure, it can adapt to pipelines of various specifications and sizes, and improve applicability.

[0045] Reference Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments of the present invention, the connecting component 21 includes an arc-shaped support plate 211, a first end of the arc-shaped support plate 211 is provided with a first plug block 2111 and a first slot 2112 which are staggered, a second end of the arc-shaped support plate 211 is provided with a second plug block 2113 and a second slot 2114 which are staggered, the first plug block 2111 and the second slot 2114 are arranged correspondingly, and the second plug block 2113 and the first slot 2112 are arranged correspondingly, so that a plurality of arc-shaped support plates 211 are connected end to end to form a ring structure.

[0046] According to some embodiments of the present invention, the first plug block 2111 is provided with a limiting portion 2117, and the second slot 2114 is provided with a limiting hole 2118, and the limiting portion 2117 and the limiting hole 2118 are correspondingly arranged to be suitable for snap-on connection.

[0047] Reference Fig. 9As shown, specifically, the first plug block 2111 is correspondingly engaged with the second slot 2114, the second plug block 2113 is correspondingly engaged with the first slot 2112, the first plug block 2111, the second plug block 2113 and the arc support plate 211 are integrally arranged, the arc support plate 211 is provided with an active cavity 2110, a push plate 2122 is slidably arranged between the inner walls of the active cavity 2110, the push plate 2122 is fixedly connected to the inner wall of the active cavity 2110 by a plurality of springs 2121, a cross bar 2123 is slidably arranged inside the active cavity 2110 to abut against the push plate 2122, and a sliding penetration is fixedly arranged on the side of the cross bar 2123 away from the push plate 2122 The adjusting column 2124 passes through the arc-shaped support plate 211, and the cross bar 2123 is also fixedly provided with a limiting portion 2117 that slides through the first plug block 2111. The second slot 2114 opened at the other end of the arc-shaped support plate 211 is provided with a limiting hole 2118. The limiting hole 2118 and the limiting portion 2117 cooperate with each other. When installing the flaw detection component, press the adjusting column 2124 to make the limiting portion 2117 shrink in the first plug block 2111 until the first plug block 2111 cooperates with the second slot 2114, then release the adjusting column 2124 to make the limiting portion 2117 cooperate with each other and connect with the limiting hole 2118, thereby realizing fixed installation.

[0048] By positioning and installing the limiting hole 2118 and the limiting portion 2117, the stability and reliability of the structure are improved.

[0049] In some embodiments of the present invention, a limiting clip 212 is provided at the front end of the arc-shaped support plate 211 along the sliding direction of the annular structure, and the cleaning component 3 is snap-connected with the limiting clip 212; therefore, a pull plate 213 is provided at the front end of the limiting clip 212, and the pull plate 213 is connected to the limiting clip 212 through a plug column 214, one end of the plug column 214 extends into the limiting clip 212, and the other end of the plug column 214 is fixedly connected to the pull plate 213, and a first elastic member 215 is sleeved on the outer periphery of the plug column 214, and the first end of the first elastic member 215 abuts against the limiting clip 212, and the second end of the first elastic member 215 abuts against the pull plate 213.

[0050] Specifically, in order to ensure the stability of the connection of the cleaning component 3, a limit strip 212 is set on the arc support plate 211. In order to ensure cleaning before flaw detection, the limit strip 212 is located at the front end of the arc support plate 211 along the sliding direction of the annular structure, and a pull plate 213 is set at the front end of the limit strip 212. The pull plate 213 is connected to the limit strip 212 through a plug 214, wherein the plug 214 is inserted into the limit strip 212. During the installation of the cleaning component 3, the pull plate 213 is first pulled forward so that the plug 214 is located outside the limit strip 212. After the cleaning component 3 is placed on the limit strip 212, under the elastic force of the first elastic member 215, the plug 214 is inserted into the limit strip 212 to fix the cleaning component 3 in the limit strip 212.

[0051] In some embodiments of the present invention, the cleaning component 3 includes a mounting strip 31, which is provided with a fixing hole 311. The fixing hole 311 is coaxially arranged with the plug post 214. The plug post 214 is suitable for passing through the fixing hole 311 to fix the mounting strip 31 in the limiting clip 212. The inner side of the mounting strip 31 is evenly provided with fiber bristles 32.

[0052] Specifically, the cleaning assembly 3 includes a mounting bar 31, and a fixing hole 311 is provided on the mounting bar 31. The fixing hole 311 is provided at a position opposite to the plug post 214, and the fixing hole 311 and the plug post 214 are coaxially arranged. The diameter of the fixing hole 311 is greater than or equal to the diameter of the plug post 214, so that the plug post 214 is inserted into the fixing hole 311 to be suitable for fixing the mounting bar 31 in the limiting clamping bar 212. It can be understood that the number of the plug posts 214 and the fixing holes 311 is the same.

[0053] In order to improve the clarity effect, the cleaning component 3 is also provided with a cleaning nozzle, which is used to spray cleaning liquid to improve the clarity efficiency.

[0054] In some embodiments of the present invention, the arc-shaped support plate 211 is provided with a through threaded circular hole 2116, and the guide assembly 23 includes an adjusting rod 231 passing through the threaded circular hole 2116, and the outer periphery of the adjusting rod 231 is provided with scale lines, and the first end of the adjusting rod 231 is rotatably provided with a guide ball 232, and the second end of the adjusting rod 231 is provided with an adjusting disk 233, and the guide ball 232 is arranged toward one side of the pipe.

[0055] Specifically, a guide ball 232 is provided at one end of the adjustment rod 231. The provision of the guide ball 232 can avoid scratching the pipeline. During non-destructive testing, the guide ball 232 is adjusted to abut against the pipeline by rotating the adjustment disk 233. The guide ball 232 is slidably connected to the pipeline, thereby avoiding scratching the pipeline and achieving a guiding effect on the annular structure during the sliding process along the length direction of the pipeline to ensure the accuracy of non-destructive testing.

[0056] Reference Figure 8 As shown, in some embodiments of the present invention, a limiting groove 2115 is provided at the rear end of the arc-shaped support plate 211 along the sliding direction of the annular structure, and accommodating cavities 2119 are opened on both sides of the limiting groove 2115. Limiting columns 2120 are slidably provided in the accommodating cavities 2119. The two limiting columns 2120 are arranged opposite to each other and one end extends into the limiting groove 2115. The detection member 22 is inserted into the limiting groove 2115, and the two limiting columns 2120 abut against the detection member 22 to be suitable for fixing the detection member 22.

[0057] It can be understood that the setting of the limiting groove 2115 can achieve the fixation of the detection member 22, ensure the stability of the detection member 22 during the sliding process of the flaw detection structure 2, and improve the accuracy of non-destructive flaw detection.

[0058] The steps of performing nondestructive flaw detection on a pipeline using the nondestructive flaw detection equipment provided by the present invention are as follows:

[0059] Step 1. According to the diameter of the pipe to be tested, increase or decrease the total number of flaw detection structures 2 so that the inner diameter of the annular structure formed by the plurality of flaw detection structures 2 meets the requirements. When it is necessary to increase the inner diameter of the closed annular structure, in the process of adding a new flaw detection structure 2, first separate two adjacent flaw detection structures 2, press the corresponding adjustment column 2124 into the active cavity 2110, and the limiting portion 2117 moves accordingly and disengages from the limiting hole 2118 in the adjacent flaw detection structure 2. Then, the two adjacent flaw detection structures 2 can be separated, and then a new flaw detection structure 2 is added between the two separated flaw detection structures 2. In the process of adding a new flaw detection structure 2, first press the corresponding adjustment column 2124 into the active cavity 2110, and the limiting portion 2117 moves accordingly into the active cavity 2110. Then, the first plug 2111 is inserted into the second slot 2114 on the new flaw detection structure 2, and the second plug 2113 on the new flaw detection structure 2 is simultaneously inserted into the first slot 2112. Release the adjustment column 2124. The column 2124 is pressed, and under the elastic action of the spring 2121, the limiting part 2117 is inserted into the limiting hole 2118 on the new flaw detection structure 2 to complete the limiting locking until the required number of flaw detection structures 2 are installed, and then several flaw detection structures 2 are connected end to end to form a new closed ring structure; similarly, when it is necessary to reduce the inner diameter of the closed ring structure, the new flaw detection structure 2 is reduced. In the process, two adjacent flaw detection structures 2 are first separated, and the corresponding adjustment column 2124 is pressed into the active cavity 2110, and the limiting part 2117 moves accordingly and disengages from the limiting hole 2118 in the adjacent flaw detection structure 2, and then the two adjacent flaw detection structures 2 can be separated, and then the above operation is continued to remove the excess number of flaw detection structures 2 in turn, and finally the remaining several flaw detection structures 2 are connected end to end to form a new closed ring structure, and are sleeved on the outside of the pipeline, wherein the connecting component 21 and the limiting card strip 212 are made of elastically deformable material and can produce elastic deformation within a certain range;

[0060] Step 2: Then screw each guide component 23 in turn, observe the scale line during the process, and accurately fine-tune the position of the guide ball 232 to ensure that the ends of the multiple guide balls 232 that are close to each other are fully in contact with the outer wall of the pipe, and that the distance between each connection component 21 and the outer wall of the pipe is equal, that is, to ensure that the distance between each acoustic wave emission flaw detector 223 and the outer wall of the pipe is the same;

[0061] Step 3, then hold the handle 41, pull the lifting rod 4 and the multiple flaw detection structures 2 to move backward along the outer wall of the pipe at the same time, wherein the bottom of the lifting rod 4 is fixedly connected to one of the protective boxes 221, and during the movement, the fiber brush 32 cleans the outer wall of the pipe in time to clean up the impurities adhering to the outer wall of the pipe, and the multiple guide balls 232 roll backward along the cleaned outer wall of the pipe, so that each acoustic wave emission flaw detector 223 always maintains the same distance with the outer wall of the pipe, and uses multiple acoustic wave emission flaw detectors 223 to perform all-round flaw detection on a circle of the outer wall of the pipe, so as to achieve full coverage of a circle of the outer wall of the pipe, and multiple acoustic wave emission flaw detectors When the flaw detector 223 moves backward along the outer wall of the cleaned pipeline, it cooperates with the controller 1 to perform acoustic emission flaw detection on the pipeline to determine the defect location on the pipeline. The acoustic emission flaw detector 223 and the controller 1 belong to the existing technology well known to those skilled in the art. When the equipment is not needed, first open the sealing cover 222, rotate the rotating shaft 225, release the limit of the two limiting columns 2120 on the support rod 227, rotate the support rod 227 and the acoustic emission flaw detector into the protective box 221, and then use the sealing cover 222 to cover the front end of the protective box 221, and store the acoustic emission flaw detector 223 in the protective box 221.

[0062] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A non-destructive testing device, suitable for non-destructive testing of pipelines; characterized in that: include: Controller (1); A plurality of flaw detection structures (2), wherein the flaw detection structures (2) are in communication connection with the controller (1), and the plurality of flaw detection structures (2) can be connected end to end to form a ring structure, and the ring structure can be sleeved on the outer circumference of the pipeline and can slide along the length direction of the pipeline; A cleaning component (3) is arranged on the flaw detection component and is arranged in a direction toward the outer wall of the pipeline. The cleaning component (3) is suitable for cleaning the outer periphery of the pipeline.

2. The nondestructive testing equipment according to claim 1, characterized in that: It also includes a lifting rod (4), the first end of which is fixedly connected to the outer side of any one of the flaw detection structures (2), the controller (1) is arranged on the lifting rod (4), and the second end of the lifting rod (4) is provided with a handle (41).

3. The nondestructive testing equipment according to claim 1, characterized in that: The flaw detection structure (2) comprises: a connection component (21) and a detection component (22) arranged on the connection component (21), the detection component (22) being communicatively connected with the controller (1), the detection component (22) being suitable for detecting defect parameters of the outer wall of the pipeline and feeding back to the controller (1), and the detection component (22) being located at the rear side of the cleaning component (3) along the sliding direction of the annular structure.

4. The nondestructive testing equipment according to claim 3, characterized in that: The connection component (21) is in the shape of an arc, the annular structure is in the shape of a closed annular ring, and the flaw detection structure (2) further comprises a guide component (23), the guide component (23) is inserted into the connection component (21) and can slide radially along the annular structure.

5. The nondestructive testing equipment according to claim 4, characterized in that: The connection assembly (21) comprises an arc-shaped support plate (211); a first end of the arc-shaped support plate (211) is provided with a first plug-in block (2111) and a first clamping groove (2112) which are staggered; a second end of the arc-shaped support plate (211) is provided with a second plug-in block (2113) and a second clamping groove (2114) which are staggered; the first plug-in block (2111) and the second clamping groove (2114) are arranged correspondingly; and the second plug-in block (2113) and the first clamping groove (2112) are arranged correspondingly, so that a plurality of the arc-shaped support plates (211) are connected end to end to enclose the ring structure.

6. The nondestructive testing equipment according to claim 5, characterized in that: Along the sliding direction of the annular structure, a limiting clamping strip (212) is provided at the front end of the arc-shaped support plate (211), and the cleaning component (3) is buckled and connected to the limiting clamping strip (212); therefore, a pulling plate (213) is provided at the front end of the limiting clamping strip (212), and the pulling plate (213) is connected to the limiting clamping strip (212) through a plug post (214), one end of the plug post (214) extends into the limiting clamping strip (212), and the other end of the plug post (214) is fixedly connected to the pulling plate (213), and a first elastic member (215) is sleeved on the outer periphery of the plug post (214), and a first end of the first elastic member (215) abuts against the limiting clamping strip (212), and a second end of the first elastic member (215) abuts against the pulling plate (213).

7. The nondestructive testing equipment according to claim 6, characterized in that: The first plug block (2111) is provided with a limiting portion (2117), and the second clamping groove (2114) is provided with a limiting hole (2118), and the limiting portion (2117) and the limiting hole (2118) are correspondingly arranged to be suitable for snap-fit ​​connection.

8. The nondestructive testing equipment according to claim 7, characterized in that: The arc-shaped support plate (211) is provided with a threaded circular hole (2116) extending therethrough, and the guide assembly (23) comprises an adjusting rod (231) passing through the threaded circular hole (2116), a scale line is provided on the outer circumference of the adjusting rod (231), a guide ball (232) is rotatably provided on the first end of the adjusting rod (231), an adjusting disk (233) is provided on the second end of the adjusting rod (231), and the guide ball (232) is arranged toward one side of the pipeline.

9. The nondestructive testing equipment according to claim 8, characterized in that: Along the sliding direction of the annular structure, a limiting notch (2115) is provided at the rear end of the arc-shaped support plate (211), and accommodating cavities (2119) are provided on both sides of the limiting notch (2115), and limiting posts (2120) are slidably provided in the accommodating cavities (2119), and the two limiting posts (2120) are arranged opposite to each other and one end of the limiting posts (2120) extends into the limiting notch (2115), and the detection member (22) is passed through the limiting notch (2115), and the two limiting posts (2120) are in contact with the detection member (22) so as to fix the detection member (22).

10. The nondestructive testing equipment according to claim 9, characterized in that: The cleaning component (3) comprises a mounting strip (31), the mounting strip (31) being provided with a fixing hole (311), the fixing hole (311) being coaxially arranged with the plug post (214), the plug post (214) being suitable for being inserted into the fixing hole (311) so as to fix the mounting strip (31) in the limiting clamping strip (212), and fiber bristles (32) being evenly arranged on the inner side of the mounting strip (31).

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