A pipeline array ultrasonic internal detection structure
By designing the ultrasonic detection structure of the pipeline array, using adjustable connecting sections and interlaced probe components, the problem of difficulty in achieving 360-degree full coverage in traditional inspection is solved, high-precision corrosion detection of bent pipes is achieved, and detection efficiency is improved and accuracy.
Patent Information
- Application Number
- CN202011638512.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-12-31
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2040-12-31
AI Technical Summary
It is difficult to achieve 360-degree full coverage of traditional pipeline corrosion ultrasonic detection, especially in the case of micro-diameter pipelines and curved pipelines. The detection accuracy is limited and the structural design is complex, making it difficult to achieve effective internal corrosion detection.
Design a pipeline array ultrasonic detection structure, using adjustable connecting segments and staggered probe components, ensuring that the probe can rotate 360 degrees in the pipeline and cover the entire pipeline surface, including variable fixed angle connecting segments and drive connection components. Ensure that the probe works properly on the curved pipes and improves sealing and waterproofing through the probe fixing nuts and sinks.
It realizes 360-degree full coverage ultrasonic detection of the pipeline, improves the accuracy and efficiency of corrosion detection, especially the detection capabilities on curved pipelines, and improves the accuracy and practicality of the detection.
Smart Images
Figure CN112747190B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of pipeline corrosion nondestructive testing, and in particular relates to a pipeline array ultrasonic internal detection structure. Background Art
[0002] As an economical, efficient and safe means of material transportation, pipelines are widely used in many important industrial fields, such as shipping, petrochemicals, nuclear energy, electricity, etc. As the service time increases, pipelines will be corroded by internal and external media, which may cause pipeline leakage and even major safety accidents, posing huge hidden dangers to the safe operation of equipment.
[0003] Traditional ultrasonic detection of pipeline corrosion uses a single probe to perform local single-point detection on the outside of the pipeline. The detection range is small, and the overall corrosion situation of the pipeline cannot be obtained, and the detection capability is limited. At the same time, the external space of the pipeline is complex, which makes it very difficult to implement pipeline corrosion detection, and sometimes even external detection is impossible. Pipeline ultrasonic internal detection technology uses a detection device to carry an ultrasonic probe inside the pipeline, which has the advantages of full coverage of the pipeline, strong detection capability, and high accuracy. However, in order to achieve 360-degree full coverage detection of the pipeline, it is necessary to design a special detection structure, especially for some small-caliber pipelines. Due to the small internal space and the size of the probe itself, it is difficult to reasonably design the detection structure. Summary of the invention
[0004] The purpose of the present invention is to provide a pipeline array ultrasonic internal detection structure, which solves the current problem of achieving full ultrasonic coverage corrosion detection inside the pipeline and further improves the accuracy of pipeline corrosion internal detection.
[0005] The technical solution adopted by the present invention is:
[0006] A pipeline array ultrasonic internal detection structure comprises two ultrasonic split bodies arranged opposite to each other, the two ultrasonic split bodies are connected by an adjustable connection joint; the two ultrasonic split bodies are provided with a drive connection assembly, and when the ultrasonic split bodies are connected to the drive part, the structure can move along the pipeline to be detected so as to perform ultrasonic detection on it;
[0007] Among them, the ultrasonic split body includes a probe mounting cylinder, both ends of the probe mounting cylinder are provided with support assemblies, and the two probe mounting cylinders are circumferentially provided with a plurality of probe assemblies, and the corresponding probe assemblies between the two probe mounting cylinders are staggered so that the probe assemblies can fully cover the pipeline to be inspected during the ultrasonic detection process.
[0008] The present invention is also characterized in that:
[0009] The adjustable connection joint is a variable fixed angle connection joint, which enables radial rotation but not axial rotation between the two probe mounting cylinders, so as to ensure that the structure can be ultrasonically tested while passing through a curved pipeline.
[0010] The variable fixed angle connection section comprises two groups of connection ears respectively connected to the support components of the two ultrasonic split bodies, and a rotating block (17) connected between each group of connection ears via a first rotating shaft, an angle adjustment ring is arranged between the two rotating blocks, and the angle adjustment ring is respectively connected to each rotating block via a rotatable connecting arm, and the rotatable connecting arm is configured with a second rotating shaft corresponding to the rotating block.
[0011] The support assembly comprises flanges arranged at both ends of the probe installation cylinder, each flange is provided with a support leather cup, and each support leather cup is provided with a plurality of water guide grooves spaced apart in the circumferential direction.
[0012] The drive connection assembly includes a rear pull ring arranged on one of the ultrasonic splits and a power joint connection hole opened on the other ultrasonic split. The rear pull ring and the power joint connection hole are both arranged at one end of the corresponding probe installation cylinder away from the adjustable connection joint.
[0013] A rear pressure plate is arranged between the rear pulling ring and its corresponding ultrasonic split body.
[0014] Each probe assembly includes an ultrasonic probe, which is radially arranged on the probe mounting cylinder and connected to the probe mounting cylinder through a probe fixing nut. The probe fixing nut can be rotated to adjust the lifting distance between the ultrasonic probe and the wall of the probe mounting cylinder.
[0015] In each probe mounting cylinder, every three adjacent ultrasonic probes are arranged in a right triangle.
[0016] The beneficial effect of the present invention is that a pipeline array ultrasonic internal detection structure uses pipeline ultrasonic internal detection technology to carry an ultrasonic probe through a detection device to move in the pipeline for detection. Through the design of an adjustable fixed-angle universal connection joint, the detection of curved pipelines can be realized, and through the reasonable array arrangement design of the ultrasonic probe, 360-degree full coverage ultrasonic internal detection of the pipeline can be achieved, thereby further improving the accuracy of pipeline corrosion internal detection, which has certain practical significance. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional structural schematic diagram of a pipeline array ultrasonic internal detection structure of the present invention;
[0018] Figure 2 It is a schematic diagram of the main view of a pipeline array ultrasonic internal detection structure of the present invention;
[0019] Figure 3It is an axial schematic diagram of a pipeline array ultrasonic in-line detection structure of the present invention.
[0020] In the figure, 1. rear pulling ring, 2. rear end pressure plate, 3. supporting leather cup, 4. flange, 5. probe mounting cylinder, 6. ultrasonic probe, 7 probe fixing nut, 8. leather cup fixing ring, 9. connecting ear, 10. first rotating shaft, 11. rotatable connecting arm, 12. second rotating shaft, 13. angle adjustment ring, 14. power joint connecting hole, 15. flange nut, 16. water guide groove, 17. rotating block. DETAILED DESCRIPTION
[0021] The following is a detailed description of a pipeline array ultrasonic in-line detection structure of the present invention in conjunction with the accompanying drawings and specific embodiments.
[0022] like Figure 1 As shown, a pipeline array ultrasonic internal detection structure includes two ultrasonic split bodies arranged opposite to each other, and the two ultrasonic split bodies are connected by an adjustable connection joint; the two ultrasonic split bodies are provided with a drive connection assembly, and when the ultrasonic split bodies are connected to the drive part, the structure can move along the pipeline to be detected so as to perform ultrasonic detection on it;
[0023] Among them, the ultrasonic split body includes a probe mounting cylinder 5, both ends of the probe mounting cylinder 5 are configured with support components, and the two probe mounting cylinders 5 are circumferentially arranged with a number of probe components, and the corresponding probe components between the two probe mounting cylinders 5 are staggered so that the probe components can fully cover the pipeline to be inspected during the ultrasonic detection process.
[0024] Furthermore, the adjustable connection joint is a variable fixed angle connection joint, which allows the two probe mounting cylinders 5 to rotate radially but not axially, so as to ensure that the structure can be ultrasonically detected while passing through a curved pipeline.
[0025] Furthermore, the variable fixed angle connecting section includes two groups of connecting ears 9 respectively connected to the supporting components of the two ultrasonic splits, and a rotating block 17 connected between each group of connecting ears 9 through a first rotating shaft 10, an angle adjustment ring 13 is arranged between the two rotating blocks 17, and the angle adjustment ring 13 is respectively connected to each rotating block 17 through a rotatable connecting arm 11, and the rotatable connecting arm 11 is configured with a second rotating shaft 12 corresponding to the rotating block 17.
[0026] The angle adjustment ring 13 of the pipeline array ultrasonic internal detection structure of the present invention can be designed as a polygonal edge according to actual needs, and then the rotatable connecting arm 11 is connected to the required edge to achieve angle adjustment. The purpose is to ensure that the ultrasonic probe 6 fully covers the pipe wall to be detected.
[0027] Furthermore, the support assembly includes flanges 4 arranged at both ends of the probe mounting cylinder 5, each flange 4 is provided with a support leather cup 3, and each support leather cup 3 is provided with a plurality of water guide grooves 16 spaced apart in the circumferential direction.
[0028] like Figure 3 As shown, further, the drive connection assembly includes a rear pulling ring 1 arranged on one of the ultrasonic splits, and a power joint connecting hole 14 opened on the other ultrasonic split. The rear pulling ring 1 and the power joint connecting hole 14 are both arranged at one end of the corresponding probe mounting cylinder 5 away from the adjustable connecting joint.
[0029] Furthermore, a rear end pressing plate 2 is provided between the rear pulling ring 1 and its corresponding ultrasonic split body.
[0030] The pipeline array ultrasonic internal detection structure of the present invention ensures the overall waterproof performance through the design of the rear end pressure plate 2, and improves the detection quality to a certain extent.
[0031] Furthermore, each probe assembly includes an ultrasonic probe 6, which is radially arranged on the probe mounting cylinder 5 and connected to the probe mounting cylinder 5 through a probe fixing nut 7. The probe fixing nut 7 can be rotated to adjust the lifting distance between the ultrasonic probe 6 and the tube wall of the probe mounting cylinder 5.
[0032] like Figure 2 As shown, further, in each probe mounting cylinder 5, every three adjacent ultrasonic probes 6 are arranged in a right triangle.
[0033] Furthermore, at the opposite end of the two probe mounting cylinders 5, a leather cup fixing ring 8 is buckled on the flange 4, and the connecting ear 9 and the leather cup fixing ring 8 are welded or integrated, in order to enhance the sealing and waterproof performance of the overall structure.
[0034] like Figure 2 As shown, the ultrasonic probe 6 of the pipeline array ultrasonic internal detection structure of the present invention has its own thread, and the ultrasonic probes 6 between the two ultrasonic split bodies are staggered at an angle, so as to fully cover the pipeline to be detected without leaving a detection blind area between the ultrasonic probes 6.
[0035] The working process of a pipeline array ultrasonic internal detection structure of the present invention is: check and install all components in good condition, connect the rear pulling ring 1 to the traction structure, connect the power joint connecting hole 14 to the power joint, adjust the detection equipment in good condition, and then place the structure into the pipeline to start detection, drive the power joint and the traction structure to detect the pipeline, and take out the structure after the detection is complete to complete the detection.
[0036] The invention provides a pipeline array ultrasonic internal detection structure, which realizes 360-degree full coverage ultrasonic detection of pipelines and also realizes ultrasonic detection of curved pipelines, thereby optimizing the efficiency and accuracy of pipeline ultrasonic detection to a certain extent.
Claims
1. A pipeline array ultrasonic internal detection structure, characterized in that: The invention comprises two ultrasonic split bodies arranged opposite to each other, the two ultrasonic split bodies are connected by an adjustable connection joint; the two ultrasonic split bodies are provided with a driving connection assembly, and when the ultrasonic split bodies are connected to the driving part, the structure can move along the pipeline to be detected so as to perform ultrasonic detection on it; The ultrasonic split body comprises a probe mounting cylinder (5), support assemblies are arranged at both ends of the probe mounting cylinder (5), a plurality of probe assemblies are arranged circumferentially on the two probe mounting cylinders (5), and the corresponding probe assemblies between the two probe mounting cylinders (5) are arranged in an alternating manner, so that the probe assemblies of the structure fully cover the pipeline to be inspected during the ultrasonic inspection process; The adjustable connection joint is a variable fixed angle connection joint, which enables the two probe mounting cylinders (5) to rotate radially but not axially, so as to ensure that the structure can perform ultrasonic testing while passing through a curved pipeline; The variable fixed angle connection section comprises two groups of connection ears (9) respectively connected to the support components of the two ultrasonic split bodies, and a rotating block (17) connected between each group of the connection ears (9) via a first rotating shaft (10), an angle adjustment ring (13) is arranged between the two rotating blocks (17), the angle adjustment ring (13) is respectively connected to each rotating block (17) via a rotatable connecting arm (11), the rotatable connecting arm (11) is configured with a second rotating shaft (12) corresponding to the rotating block (17), the angle adjustment ring (13) is a polygonal edge, and then the rotatable connecting arm (11) is connected to the required edge; The support assembly comprises flanges (4) arranged at both ends of the probe mounting cylinder (5), each flange (4) being provided with a support leather cup (3), and each support leather cup (3) being provided with a plurality of water guide grooves (16) spaced apart in the circumferential direction; The drive connection assembly comprises a rear pull ring (1) arranged on one of the ultrasonic split parts, and a power joint connection hole (14) opened on the other ultrasonic split part, wherein the rear pull ring (1) and the power joint connection hole (14) are both arranged at an end of the corresponding probe mounting cylinder (5) away from the adjustable connection joint; Each of the probe assemblies comprises an ultrasonic probe (6), wherein the ultrasonic probe (6) is radially arranged on the probe mounting cylinder (5) and connected to the probe mounting cylinder (5) via a probe fixing nut (7), wherein the probe fixing nut (7) can be rotated to adjust the lifting distance between the ultrasonic probe (6) and the wall of the probe mounting cylinder (5).
2. The pipeline array ultrasonic in-line detection structure according to claim 1, characterized in that: A rear end pressing plate (2) is provided between the rear pulling ring (1) and its corresponding ultrasonic split body.
3. The pipeline array ultrasonic in-line detection structure according to claim 1, characterized in that: In each probe mounting cylinder (5), every three adjacent ultrasonic probes (6) are arranged in a right-angled triangle.