Pipe girth weld inspection system and method of use

Abstract

The application relates to the technical field of pipeline weld detection, and discloses a pipeline girth weld detection system and a use method thereof, which comprises a steel belt, two walking devices, a ray generating device and a ray imaging device, the steel belt comprises a first belt body, a second belt body, a quick connection buckle and a screw connection buckle, the quick connection buckle and the screw connection buckle are arranged between the first belt body and the second belt body, so that the first belt body and the second belt body are enclosed into a circular ring shape, the walking devices are arranged on the steel belt, and the two walking devices are oppositely arranged, and the ray generating device and the ray imaging device are fixedly arranged on the two walking devices respectively. The steel belt is arranged to comprise the first belt body, the second belt body, the quick connection buckle and the screw connection buckle, so that the installation convenience of the steel belt can be improved, the installation efficiency and the detection efficiency of the detection system can be improved, and the damage of the steel belt to the side wall of the pipeline can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline weld detection, and in particular to a pipeline girth weld detection system and a method of using the same. BACKGROUND

[0002] In the petroleum, natural gas, chemical and other industrial fields, the safety and reliability of pipelines, which are the main means of material transmission, are of great importance. A pipeline system is usually formed by connecting long sections of steel pipes through welding, forming a continuous material transmission channel. At the girth weld, cracks, slag inclusions, incomplete fusion and other defects are prone to occur, which directly affect the overall strength and sealing performance of the pipeline. In severe cases, it may lead to material leakage and even cause safety accidents. Therefore, it is necessary to detect the girth weld of the pipeline.

[0003] In order to improve the efficiency and accuracy of pipeline girth weld detection, while reducing the cost of pipeline girth weld detection, an automatic pipeline girth weld detection device has emerged. For example, the patent CN120684670A discloses a pipeline girth weld detection device, which is provided with a guide rail, a walking mechanism, and a radiation imaging mechanism and a radiation generating device mounted on the walking mechanism. The pipeline girth weld is detected using the principle of radiation imaging.

[0004] In the above technical solution, the guide rail not only fixes the walking mechanism, the radiation imaging mechanism and the radiation generating device, but also enables the radiation imaging mechanism and the radiation generating device to move along a circular path, ensuring the automatic operation of the detection device. However, when detecting the pipeline weld, especially for larger-sized pipelines, the size and weight of the guide rail are usually relatively large, making the installation of the guide rail more inconvenient and affecting the detection efficiency of the pipeline girth weld. SUMMARY

[0005] Therefore, the present application provides a pipeline girth weld detection system and a method of using the same, which can improve the installation convenience of the steel belt and improve the installation efficiency and detection efficiency of the detection system.

[0006] The technical scheme of the present application is implemented in the following manner: on one hand, the present application provides a pipeline annular weld detection system, comprising a steel belt, two walking devices, a ray generating device and a ray imaging device, wherein the steel belt comprises a first belt body, a second belt body, a quick connection buckle and a screw connection buckle, the first belt body and the second belt body are both arc-shaped, and the length of the first belt body is smaller than that of the second belt body; the quick connection buckle and the screw connection buckle are both arranged between the first belt body and the second belt body, so that the first belt body and the second belt body are enclosed into a circular ring shape; the walking devices are arranged on the steel belt, and the two walking devices are oppositely arranged; the ray generating device and the ray imaging device are respectively fixedly arranged on the two walking devices; the quick connection buckle comprises a first clamping rod, a second clamping rod, a spring and a limiting block, the first clamping rod and the second clamping rod are both rotationally arranged on the first belt body, and one end of the first clamping rod and the second clamping rod is provided with a limiting groove; the spring is abuttingly arranged between the first clamping rod and the second clamping rod, and is located at the end of the first clamping rod away from the limiting groove; and the limiting block is fixedly arranged on the second belt body and is connected with the limiting groove.

[0007] On the basis of the above technical scheme, preferably, the limiting groove comprises a sliding groove, a through groove and a clamping groove, the sliding groove is arranged in the first clamping rod and the second clamping rod; the through groove is arranged in the first clamping rod and the second clamping rod and penetrates to the side of the first clamping rod and the second clamping rod close to the first belt body; the clamping groove is arranged in the first clamping rod and the second clamping rod and is in communication with the sliding groove; the limiting block comprises a connecting rod and a clamping block, the connecting rod is fixedly arranged on the second belt body and is slidingly arranged in the through groove; and the clamping block is fixedly arranged on the connecting rod and is slidingly arranged in the sliding groove and is connected with the clamping groove.

[0008] On the basis of the above technical scheme, preferably, the side of the clamping block away from the spring is inclined, and the side of the clamping groove away from the spring is inclined.

[0009] On the basis of the above technical scheme, preferably, a side line m is the intersection line of the side of the clamping block away from the spring and the side of the clamping block close to the spring, a side line n is the intersection line of the side of the clamping groove away from the spring and the sliding groove, and the side line m and the side line n are located on the same side of the through groove; a plurality of tooth grooves are arranged on the steel belt, and the plurality of tooth grooves are arranged in an array along the circumferential direction of the steel belt; when the clamping block abuts against the side of the clamping groove away from the spring, the distance between the side line m and the side line n in the length direction of the sliding groove is equal to the width of the tooth groove.

[0010] Based on the above technical solutions, preferably, the quick-connect buckle further includes a pad, which is fixedly disposed between the first clamping rod and the first belt body, and also fixedly disposed between the second clamping rod and the first belt body.

[0011] Based on the above technical solutions, preferably, two quick-connect buckles are provided.

[0012] Based on the above technical solutions, preferably, the screw-on buckle includes a fixed base, a rotating frame, a screw, and a clamping seat. The fixed base is fixedly mounted on the second belt body; one end of the rotating frame is rotatably mounted on the fixed base; the screw is threadedly connected to the rotating frame; the clamping seat is fixedly mounted on the first belt body, and the screw abuts against the clamping seat.

[0013] Based on the above technical solutions, preferably, the screw fastener further includes a threaded sleeve seat, which is fixedly disposed on the first belt body; the screw includes a thin screw and a thick screw, the thin screw is connected to the rotating frame by a threaded engagement; the thick screw is coaxially fixed on the thin screw and abuts against the clamping seat, and the thick screw can be connected to the threaded sleeve seat by a threaded engagement.

[0014] Secondly, the present invention provides a method for using the above-mentioned pipeline circumferential weld inspection system, comprising the following steps: S1, unfastening the quick-connect buckle, separating the end of the first belt away from the screw-on buckle from the end of the second belt away from the screw-on buckle; S2, placing the first belt and the second belt on the pipeline, positioning the first belt and the second belt on one side of the pipeline weld, positioning the screw-on buckle above one side of the pipeline, and positioning the quick-connect buckle on the bottom side of the pipeline; S3, connecting the quick-connect buckle and tightening the screw-on buckle; S4, installing the X-ray generating device and the X-ray imaging device on the two traveling devices respectively; S5, installing the two traveling devices on the steel belt, and using the movement of the two traveling devices, positioning the X-ray generating device and the X-ray imaging device relative to each other about the axis of the pipeline.

[0015] The pipeline circumferential weld inspection system and its usage method of the present invention have the following advantages over the prior art:

[0016] (1) By setting the steel strip to include a first strip body, a second strip body, a quick-connect buckle and a screw-on buckle, not only can the installation convenience of the steel strip be improved, the installation efficiency and detection efficiency of the detection system be increased, but the damage caused by the steel strip to the side wall of the pipeline can also be reduced.

[0017] (2) By setting the quick-connect buckle to include a first clamping rod, a second clamping rod, a spring and a limiting block, the ease of assembling and disassembling the quick-connect buckle can be improved. By limiting the limiting groove and the limiting block, not only can the fixing firmness of the quick-connect buckle be improved, but the quick-connect buckle can also be more adaptable to steel strips with toothed grooves.

[0018] (3) By setting the screw fastener to include a fixed seat, a rotating frame, a screw, a clamping seat and a screw sleeve seat, it is convenient to rotate and separate the first belt body and the second belt body, thereby eliminating the limitation on the manufacturing materials of the first belt body and the second belt body, which is conducive to improving the manufacturing, transportation and use convenience of steel belt. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a top view of the pipeline circumferential weld inspection system and the pipeline of the present invention.

[0021] Figure 2 This is a left view of the pipeline circumferential weld inspection system and the pipeline of the present invention.

[0022] Figure 3 This is a perspective view of the steel strip in the pipe annular weld inspection system of the present invention.

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0024] Figure 5 This is a cross-sectional view of the quick-connect clip in the pipe annular weld inspection system of the present invention.

[0025] Figure 6 for Figure 5 The enlarged view at point C shows the state in which the limiting block abuts against the inner wall of the slot.

[0026] Figure 7 for Figure 5 The enlarged view at point C shows the state where the limiting block does not abut against the inner wall of the slot.

[0027] Figure 8 This is a cross-sectional view of the limiting block in the pipe annular weld detection system of the present invention.

[0028] Figure 9 for Figure 3The enlarged view at point B shows the state in which the coarse screw and the clamping seat are in contact.

[0029] Figure 10 for Figure 3 The enlarged view at point B shows the state where the coarse screw and the screw sleeve are fixedly connected by threads.

[0030] Figure 11 The left view of the steel strip in the pipe annular weld inspection system of the present invention shows the state in which the first strip body and the second strip body are separated.

[0031] Figure 12 This is a perspective view of the traveling device in the pipeline circumferential weld inspection system of the present invention.

[0032] The components are as follows: 1. Steel strip; 11. First strip body; 12. Second strip body; 13. Quick-connect buckle; 14. Tight-fitting buckle; 131. First clamping rod; 132. Second clamping rod; 133. Spring; 134. Limiting block; 135. Pad; 1341. Connecting rod; 1342. Locking block; 141. Fixed seat; 142. Rotating frame; 143. Screw; 144. Clamping seat; 145. Screw sleeve seat; 1431. Fine screw; 1432. Coarse screw; 101. Limiting groove; 1011. Sliding groove; 1012. Through groove; 1013. Locking groove; 102. Toothed groove; 2. Walking device; 3. X-ray generating device; 4. X-ray imaging device; 5. Pipe; 501. Pipe weld. Detailed Implementation

[0033] The technical solutions of this invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0034] Pipeline 5 is widely used in industries such as petroleum, natural gas, and chemicals, serving to transport materials. The material of pipeline 5 is selected according to the different media being transported, such as carbon steel or stainless steel. To improve the corrosion resistance of pipeline 5, a rubber protective layer is also coated on its outer wall.

[0035] Since the material conveying distance is usually long, and the length of a single pipe 5 is limited, it is necessary to use welding to connect multiple pipes 5 to meet the length requirements of the actual project. The connection position of two adjacent pipes 5 will generate an annular pipe weld 501.

[0036] If welding parameters are not properly controlled or the operation is not standardized during the welding process, defects such as cracks, slag inclusions, and lack of fusion may occur, which will damage the structural strength and sealing of pipeline 5 and affect the transportation of materials.

[0037] The pipeline circumferential weld inspection system of the present invention includes a steel strip 1, two walking devices 2, a radiation generating device 3 and a radiation imaging device 4, which are installed on the pipeline 5 and inspect the pipeline weld 501 by means of DR inspection (Digital Radiography).

[0038] like Figure 1 and Figure 2 As shown, the steel strip 1 is fixed around the periphery of the pipe 5 and is located next to the pipe weld 501. The traveling device 2 is set on the steel strip 1 and can move along the steel strip 1. The two traveling devices 2 are arranged opposite to each other. The radiation generating device 3 and the radiation imaging device 4 are respectively fixed on the two traveling devices 2. The traveling devices 2 drive the radiation generating device 3 and the radiation imaging device 4 to move in a circle on the pipe 5.

[0039] The X-ray generating device 3 and the X-ray imaging device 4 are positioned relative to each other about the axis of the pipe 5. The X-rays emitted by the X-ray generating device 3 penetrate the pipe weld 501 and are received by the X-ray imaging device 4. Digital conversion is used to form an image reflecting the state of the pipe weld 501, thus achieving non-destructive testing of the pipe weld 501. The traveling device 2 moves in a circle along the steel belt 1, and the two traveling devices 2 move synchronously on the steel belt 1, allowing the X-ray imaging device 4 to receive complete information about the pipe weld 501 for comprehensive inspection of the circular pipe weld 501.

[0040] like Figure 1 and Figure 2 As shown, a spacer is provided between the steel strip 1 and the pipe 5, forming a uniform annular gap between the steel strip 1 and the sidewall of the pipe 5. Figure 12 As shown, the walking device 2 is equipped with two drive wheels and two clamping wheels, and the distance between the clamping wheels and the drive wheels is adjustable. By adjusting the distance between the clamping wheels and the drive wheels, the walking device 2 can be clamped on the steel belt 1, and then the walking device 2 can be moved on the steel belt 1 by driving the drive wheels.

[0041] The drive wheel contains gears, such as Figure 4 As shown, multiple toothed grooves 102 are provided on the annular sidewall of the steel belt 1. The multiple toothed grooves 102 are arranged in a circumferential array along the steel belt 1. The distance between two adjacent toothed grooves 102 is 0, thereby forming multiple continuous tooth-like structures on the annular sidewall of the steel belt 1. These tooth-like structures mesh with the gears in the drive wheel, thereby improving the movement stability of the walking device 2 on the steel belt 1.

[0042] The pipes 5 used in industries such as petroleum and chemical engineering are relatively large, which leads to an increase in the weight and size of the steel strip 1 installed around the pipe 5. This is not conducive to improving the ease of installation of the steel strip 1, nor is it conducive to improving the detection efficiency of this detection system.

[0043] Therefore, this application makes improvements to steel strip 1. For example... Figure 2 As shown, the steel strip 1 includes a first strip body 11, a second strip body 12, a quick-connect buckle 13, and a screw-on buckle 14. Both the first strip body 11 and the second strip body 12 are arc-shaped, and the length of the first strip body 11 is less than the length of the second strip body 12. The quick-connect buckle 13 and the screw-on buckle 14 are both arranged between the first strip body 11 and the second strip body 12, so that the first strip body 11 and the second strip body 12 form a ring and surround the periphery of the pipe 5.

[0044] When installing the steel strip 1, the quick-connect buckle 13 is located directly below the steel strip 1, and the screw-on buckle 14 is located above the side of the steel strip 1. First, the screw-on buckle 14 is used to connect the first strip body 11 and the second strip body 12, thus separating the quick-connect buckle 13 and forming an opening at the lower part of the steel strip 1, so that the steel strip 1 can be fitted onto the periphery of the pipe 5 from top to bottom. After the steel strip 1 is fitted onto the periphery of the pipe 5, the quick-connect buckle 13 is connected, and the screw-on buckle 14 is tightened, thus fixing the steel strip 1 onto the pipe 5.

[0045] During the above process, the screw-on clip 14 is located above the side of the pipe 5, which facilitates the screwing operation for the operator. This eliminates the need for the operator to perform the screwing operation in an uncomfortable position, and also avoids the need to rotate the steel strip 1, thus preventing damage to the rubber coating around the pipe 5. At the same time, the screw-on clip 14 does not need to be separated throughout the process, eliminating the need for alignment operations of its components, further improving the ease of operation.

[0046] In one preferred embodiment, the quick-connect buckle 13 includes a first clamping rod 131, a second clamping rod 132, a spring 133, a limiting block 134, and a pad 135, as shown below. Figure 4 and Figure 5 As shown, the first clamping rod 131 and the second clamping rod 132 are both rotatably mounted on the first belt body 11, and a limiting groove 101 is provided at one end of the first clamping rod 131 and the second clamping rod 132. The spring 133 is abutted between the first clamping rod 131 and the second clamping rod 132 and is located at the end of the first clamping rod 131 away from the limiting groove 101. The limiting block 134 is fixedly mounted on the second belt body 12.

[0047] When the second belt 12 approaches the first belt 11, the limiting block 134 will abut against the first clamping rod 131 and the second clamping rod 132, causing them to rotate. This will separate the ends of the first clamping rod 131 and the second clamping rod 132 that are close to the second belt 12, and bring the ends of the first clamping rod 131 and the second clamping rod 132 that are away from the second belt 12 together, causing the spring 133 to contract. When the limiting block 134 moves to the position of the limiting groove 101 between the first clamping rod 131 and the second clamping rod 132, the spring 133 will extend, causing the ends of the first clamping rod 131 and the second clamping rod 132 that are close to the second belt 12 to converge, so that the limiting block 134 is engaged with the limiting groove 101, thereby realizing the connection of the quick-connect buckle 13 to the first belt 11 and the second belt 12.

[0048] like Figure 5 As shown, when the left ends of the first clamping rod 131 and the second clamping rod 132 are manually pressed and brought closer together, the right ends of the first clamping rod 131 and the second clamping rod 132 can be separated, thereby allowing the limiting block 134 to quickly disengage from the limiting groove 101, thus realizing the quick disassembly of the quick-connect buckle 13.

[0049] like Figure 4 As shown, the pad 135 is fixedly disposed between the first clamping rod 131 and the first belt body 11, and also fixedly disposed between the second clamping rod 132 and the first belt body 11, and the pad 135 is fixedly disposed between the limiting block 134 and the second belt body 12.

[0050] The pad 135 is arc-shaped on the side near the first belt 11 and the second belt 12 to fit against the first belt 11 and the second belt 12, and the side of the pad 135 away from the first belt 11 and the second belt 12 is flat, so that the limiting block 134 can be quickly assembled with the limiting groove 101.

[0051] The quick-connect buckles 13 are preferably configured in pairs, with the two quick-connect buckles 13 arranged opposite each other, so as to improve the connection stability and reliability of the quick-connect buckles 13 to the first belt body 11 and the second belt body 12.

[0052] like Figures 5-8 As shown, the limiting groove 101 includes a sliding groove 1011, a through groove 1012, and a locking groove 1013. The sliding groove 1011 is formed in the first clamping rod 131 and the second clamping rod 132. The through groove 1012 is formed in the first clamping rod 131 and the second clamping rod 132 and extends to the side of the first clamping rod 131 and the second clamping rod 132 near the first belt body 11. The locking groove 1013 is formed in the first clamping rod 131 and the second clamping rod 132 and communicates with the sliding groove 1011.

[0053] like Figure 8As shown, the limiting block 134 includes a connecting rod 1341 and a locking block 1342. The connecting rod 1341 is fixedly mounted on the second belt body 12 or the pad 135 and slidably mounted in the through groove 1012. The locking block 1342 is fixedly mounted on the connecting rod 1341 and slidably mounted in the slide groove 1011. The locking block 1342 can engage with the locking groove 1013, thereby improving the connection stability between the limiting block 134 and the limiting groove 101.

[0054] The through slot 1012 can also extend to the side of the first clamping rod 131 and the second clamping rod 132 away from the first belt body 11, so as to facilitate external observation of the engagement state of the locking block 1342 and the locking slot 1013.

[0055] like Figure 5 and Figure 6 As shown, the side of the locking block 1342 away from the spring 133 is inclined, and the side of the slot 1013 away from the spring 133 is also inclined. When the fastener 14 is tightened, the two inclined surfaces abut against each other, thereby preventing the right ends of the first clamping rod 131 and the second clamping rod 132 from separating and improving the connection firmness of the quick-connect buckle 13.

[0056] like Figure 6 and Figure 7 As shown, edge line m is the intersection line between the side of the locking block 1342 away from the spring 133 and the side of the locking block 1342 close to the spring 133, and edge line n is the intersection line between the side of the slot 1013 away from the spring 133 and the slide groove 1011, and edge line m and edge line n are located on the same side of the through groove 1012.

[0057] When the locking block 1342 slides within the slide groove 1011, the locking block 1342 will only engage with the slot 1013 after the edge line m coincides with the edge line n. Figure 7 As shown, this state is the instant the locking block 1342 is inserted into the slot 1013. At this moment, the end of the second belt body 12 abuts against the end of the first belt body 11, thus preventing the locking block 1342 from sliding further to the left. However, the locking block 1342 is spaced apart from the side of the slot 1013 away from the spring 133. At this time, the locking block 1342 can be brought into contact with the side of the slot 1013 away from the spring 133 by tightening the screw-on buckle 14, i.e. Figure 6 The state shown.

[0058] like Figure 7 As shown, when the card block 1342 is just inserted into the card slot 1013, that is, when the end of the second belt body 12 abuts against the end of the first belt body 11, the distance between the edge line m and the edge line n in the length direction of the slide groove 1011 is 0; Figure 6As shown, when the locking block 1342 abuts against the side of the slot 1013 away from the spring 133, the distance between the edge line m and the edge line n along the length of the slide groove 1011 is equal to the width of the tooth groove 102, as shown. Figure 4 As shown, when the second belt 12 and the first belt 11 are connected, the distance between the second belt 12 and the first belt 11 is the width of the tooth groove 102. The ends of the first belt 11 and the second belt 12 both form a half-tooth structure. This not only ensures the continuity of the tooth structure and enables the walking device 2 to move stably, but also increases the end face area of ​​the first belt 11 and the end face area of ​​the second belt 12, thereby improving the docking stability of the second belt 12 and the first belt 11.

[0059] like Figure 5 As shown, when the right end of the first clamping rod 131 and the right end of the second clamping rod 132 are separated, the limiting block 134 can be disengaged from the limiting groove 101 to separate the second belt body 12 and the first belt body 11. Therefore, during the transportation of the steel belt 1, both ends of the first belt body 11 can be connected with both ends of the second belt body 12, thereby avoiding damage to the ends of the first belt body 11 or the second belt body 12 during transportation.

[0060] In one preferred embodiment, the screw-on buckle 14 includes a fixed base 141, a rotating frame 142, a screw 143, and a clamping base 144, such as Figure 9 As shown, the fixed seat 141 is fixedly mounted on the second belt body 12, one end of the rotating frame 142 is rotatably mounted on the fixed seat 141, the screw 143 is threadedly connected to the other end of the rotating frame 142, and the clamping seat 144 is fixedly mounted on the first belt body 11. By rotating the rotating frame 142, the screw 143 is moved to the side of the clamping seat 144 away from the second belt body 12. By rotating the screw 143, the screw 143 and the side of the clamping seat 144 away from the second belt body 12 can be made to abut against each other, thereby achieving the tensioning of the first belt body 11 and the second belt body 12, so that the two are connected together.

[0061] In the prior art, in order to facilitate the wrapping and fixing of the steel strip 1 around the pipe 5, the steel strip 1 needs to have a certain degree of elasticity so that its two ends can be separated. However, the elastic steel strip 1 will undergo certain deformation during processing, transportation and disassembly, affecting the walking trajectory of the walking device 2, which will affect the detection accuracy of the detection system, and may even affect the normal operation of the detection system.

[0062] To ensure testing accuracy, this application specifies that the steel strip 1 is made of a rigid material, preventing deformation during processing, transportation, and assembly / disassembly. Correspondingly, the screw-on buckle 14 has been modified as follows:

[0063] The screw-on buckle 14 also includes a threaded sleeve seat 145, which is fixedly mounted on the first belt body 11. The screw 143 includes a thin screw 1431 and a coarse screw 1432. The thin screw 1431 is threadedly connected to the rotating frame 142. The outer diameter of the coarse screw 1432 is larger than the outer diameter of the thin screw 1431, and the coarse screw 1432 is coaxially fixed to the thin screw 1431. Figure 9 As shown, by rotating the thin screw 1431, the coarse screw 1432 can be made to abut against the clamping seat 144, thereby connecting the first belt body 11 and the second belt body 12.

[0064] like Figure 10 As shown, the threaded sleeve seat 145 has a threaded hole. By rotating the fine screw 1431, the coarse screw 1432 can be moved away from the clamping seat 144, and the coarse screw 1432 can be fixedly connected to the threaded hole of the threaded sleeve seat 145 through thread engagement.

[0065] The rotation axis of the rotating frame 142 corresponds to the connection position of the first belt body 11 and the second belt body 12. When the coarse screw 1432 is fixed together with the screw sleeve seat 145 by threads, the rotation of the rotating frame 142 can make the steel belt 1 form as shown in the figure. Figure 11 The state shown is so that the steel strip 1 can be installed on the pipe 5.

[0066] like Figure 9 As shown, by rotating the thin screw 1431, the coarse screw 1432 can be separated from the screw sleeve seat 145 to cooperate with the clamping seat 144, thereby realizing the switching of the state of the screw 143.

[0067] The method of using the pipeline circumferential weld inspection system of the present invention is as follows:

[0068] S1, firstly, by separating the ends of the first clamping rod 131 and the second clamping rod 132 away from the spring 133, the quick-connect buckle 13 is released; then, by rotating the thin screw 1431, the thick screw 1432 is fixedly connected to the screw sleeve seat 145, and by rotating the rotating frame 142, the end of the first belt body 11 away from the screw fastening buckle 14 is separated from the end of the second belt body 12 away from the screw fastening buckle 14.

[0069] S2, place the first belt 11 and the second belt 12 on the pipe 5 from top to bottom, and position the first belt 11 and the second belt 12 on one side of the pipe weld 501, position the screw fastener 14 above the side of the pipe 5 closest to the operator, and position the quick-connect fastener 13 on the bottom side of the pipe 5.

[0070] S3, bring the end of the first belt 11 away from the screw-on buckle 14 and the end of the second belt 12 away from the screw-on buckle 14 closer together, so that the limiting block 134 is engaged in the limiting groove 101, and the quick-connect buckle 13 is connected. Then rotate the thin screw 1431 in the screw-on buckle 14 so that the thick screw 1432 abuts against the clamping seat 144, thereby realizing the docking of the end of the first belt 11 away from the quick-connect buckle 13 and the end of the second belt 12 away from the quick-connect buckle 13.

[0071] S4, install the X-ray generating device 3 and the X-ray imaging device 4 on the two walking devices 2 respectively.

[0072] S5, two walking devices 2 are installed on the first belt 11 or the second belt 12, and by moving the two walking devices 2, the X-ray generating device 3 and the X-ray imaging device 4 are set relative to each other about the axis of the pipe 5. Finally, the two walking devices 2 are moved synchronously on the steel belt 1, so that the X-rays emitted by the X-ray generating device 3 can pass through different positions of the pipe weld 501 and be received by the X-ray imaging device 4, so as to realize the comprehensive inspection of the pipe weld 501.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pipeline circumferential weld inspection system, characterized in that: It includes a steel belt (1), two walking devices (2), a radiation generating device (3), and a radiation imaging device (4), wherein, The steel strip (1) includes a first strip body (11), a second strip body (12), a quick-connect buckle (13), and a screw-on buckle (14). The first strip body (11) and the second strip body (12) are both arc-shaped, and the length of the first strip body (11) is less than the length of the second strip body (12). The quick-connect buckle (13) and the screw-on buckle (14) are both disposed between the first strip body (11) and the second strip body (12), so that the first strip body (11) and the second strip body (12) form a ring. The walking device (2) is mounted on the steel belt (1), and the two walking devices (2) are arranged opposite each other; The ray generating device (3) and the ray imaging device (4) are respectively fixedly mounted on the two walking devices (2); The quick-connect buckle (13) includes a first clamping rod (131), a second clamping rod (132), a spring (133), and a limiting block (134). The first clamping rod (131) and the second clamping rod (132) are rotatably mounted on the first belt body (11), and a limiting groove (101) is provided at one end of the first clamping rod (131) and the second clamping rod (132). The spring (133) is abutted between the first clamping rod (131) and the second clamping rod (132) and is located at the end of the first clamping rod (131) away from the limiting groove (101). The limiting block (134) is fixedly mounted on the second belt body (12) and engages with the limiting groove (101).

2. The pipeline circumferential weld inspection system as described in claim 1, characterized in that: The limiting groove (101) includes a sliding groove (1011), a through groove (1012), and a locking groove (1013). The sliding groove (1011) is formed in the first clamping rod (131) and the second clamping rod (132). The through groove (1012) is formed in the first clamping rod (131) and the second clamping rod (132) and extends to the side of the first clamping rod (131) and the second clamping rod (132) near the first belt body (11). The locking groove (1013) is formed in the first clamping rod (131) and the second clamping rod (132) and communicates with the sliding groove (1011). The limiting block (134) includes a connecting rod (1341) and a locking block (1342). The connecting rod (1341) is fixedly disposed on the second belt body (12) and slidably disposed in the through groove (1012). The locking block (1342) is fixedly disposed on the connecting rod (1341) and slidably disposed in the slide groove (1011), and is engaged with the locking groove (1013).

3. The pipeline circumferential weld inspection system as described in claim 2, characterized in that: The side of the card block (1342) away from the spring (133) is inclined, and the side of the card slot (1013) away from the spring (133) is also inclined.

4. The pipeline circumferential weld inspection system as described in claim 3, characterized in that: The edge line m is the intersection line between the side of the card block (1342) away from the spring (133) and the side of the card block (1342) close to the spring (133), and the edge line n is the intersection line between the side of the card groove (1013) away from the spring (133) and the slide groove (1011), and the edge line m and the edge line n are located on the same side of the through groove (1012); The steel strip (1) has multiple grooves (102) arranged in a circumferential array along the steel strip (1); When the card block (1342) abuts against the side of the card slot (1013) away from the spring (133), the distance between the edge line m and the edge line n in the length direction of the slide groove (1011) is equal to the width of the tooth groove (102).

5. The pipeline circumferential weld inspection system as described in claim 1, characterized in that: The quick-connect buckle (13) also includes a pad (135), which is fixedly disposed between the first clamping rod (131) and the first belt body (11), and fixedly disposed between the second clamping rod (132) and the first belt body (11).

6. The pipeline circumferential weld inspection system as described in claim 5, characterized in that: Two quick-connect buckles (13) are provided.

7. The pipeline circumferential weld inspection system as described in claim 1, characterized in that: The screw-on buckle (14) includes a fixed seat (141), a rotating frame (142), a screw (143), and a clamping seat (144). The fixed seat (141) is fixedly mounted on the second belt body (12). One end of the rotating frame (142) is rotatably mounted on the fixed seat (141). The screw (143) is threadedly connected to the rotating frame (142). The clamping seat (144) is fixedly mounted on the first belt body (11), and the screw (143) abuts against the clamping seat (144).

8. The pipeline circumferential weld inspection system as described in claim 7, characterized in that: The screw-on buckle (14) also includes a screw sleeve seat (145), which is fixedly disposed on the first belt body (11); The screw (143) includes a thin screw (1431) and a coarse screw (1432). The thin screw (1431) is connected to the rotating frame (142) by a threaded connection. The coarse screw (1432) is coaxially fixed to the thin screw (1431) and abuts against the clamping seat (144). The coarse screw (1432) can be connected to the screw sleeve seat (145) by a threaded connection.

9. The method of using the pipeline circumferential weld inspection system as described in any one of claims 1-8, characterized in that, Includes the following steps: S1, unfasten the quick-connect buckle (13) to separate the end of the first belt (11) away from the screw-on buckle (14) from the end of the second belt (12) away from the screw-on buckle (14); S2, place the first belt (11) and the second belt (12) on the pipe (5), and position the first belt (11) and the second belt (12) on one side of the pipe weld (501) on the pipe (5), position the screw fastener (14) above one side of the pipe (5), and position the quick-connect fastener (13) on the bottom side of the pipe (5); S3, connect the quick-connect buckle (13) and tighten the screw-in buckle (14). S4, the ray generating device (3) and the ray imaging device (4) are respectively installed on the two walking devices (2); S5, the two walking devices (2) are mounted on the steel belt (1), and by moving the two walking devices (2), the ray generating device (3) and the ray imaging device (4) are arranged relative to each other about the axis of the pipe (5).

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