CN112903728A - Non-destructive testing device and method for insulation piercing connector based on CT tomography - Google Patents
Non-destructive testing device and method for insulation piercing connector based on CT tomography Download PDFInfo
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- 238000002591 computed tomography Methods 0.000 claims description 67
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Abstract
The invention relates to a nondestructive testing device and a nondestructive testing method for an insulation puncture wire clamp based on CT tomography, which are technically characterized in that: the X-ray of CT tomography penetrates through the insulation puncture wire clamp and is received by the X-ray receiver; the axial and circumferential movement of the motor is controlled by the motor to realize tomography; the received signals are analyzed by a computer to realize the 3D image reconstruction of the internal structure of the insulation piercing connector, and the purpose of nondestructive testing is realized. The method can accurately and reliably master the internal structure of the insulation piercing connector, analyzes the contact condition of the insulation piercing connector, effectively evaluates the contact condition, has important significance for improving the reliability of the insulation wire of the medium and low voltage distribution network, and greatly improves the power supply reliability of the medium and low voltage distribution network.
Description
Technical Field
The invention belongs to the technical field of detection of contact states of insulating piercing connectors of medium and low voltage distribution networks, and particularly relates to a nondestructive detection device and method for insulating piercing connectors based on CT (computed tomography) tomography.
Background
At the end of 7 months in 1986, a notice on strengthening urban distribution network work issued by the department of original energy sources clearly indicates that overhead insulated conductors are actively adopted and popularized in urban medium-low voltage distribution networks, and particularly in busy sections, densely populated areas and sections with contradictory and prominent tree lines in cities, the overhead insulated conductors gradually replace the existing overhead bare wires. At present, insulated wires are adopted in main medium and low voltage distribution lines of large and medium cities, and how to perform aerial insulated line connection and branch is directly related to the reliability of the urban distribution lines. In 2012, the state energy agency released the electric power industry standard of rated voltage 10kV and following insulating piercing connectors, ended the chaotic situation in the insulating piercing connector market, standardized the insulating piercing connector market, prevented and reduced the threat of inferior insulating piercing connector to low and medium voltage distribution lines and power equipment power consumption reliability. In 2015, the 'insulation piercing connector' is approved to become an international standard hatching project of the national grid company, and the project aims to lay an extremely important basic key position for breaking the foreign technical barriers of insulation piercing connector products in China and smoothly realizing international trade export. In the future, along with the continuous deepening of urban and rural distribution network transformation and the popularization and application of insulated wires, the application of the insulated puncture wire clamp is more and more extensive, and the insulated puncture wire clamp plays an increasingly important role in aspects such as low-voltage distribution lines in national power grids, high-rise building power consumption, urban street lamp power distribution system connection and the like.
The insulation piercing connector is influenced by various environmental factors such as temperature, humidity change, pollution, sunshine and wind and rain in the operation process, and the insulation piercing connector has defects even insulation breakdown under the action; in the long-term service process, the phenomena of ageing of the puncture blade and the conductor, contact force reduction and the like are inevitably caused under the action of large load for a long term and a short term, so that the contact resistance of the puncture blade and the conductor is increased, the heating is serious, the line loss is increased if the contact resistance is small, the economic benefit is damaged, the line is broken if the contact resistance is large, the power supply is interrupted, and the safe and reliable operation of an urban power supply line is influenced. Therefore, in order to accurately master the contact state of the insulation piercing connector, the contact state of the insulation piercing connector is reasonably detected, and the reliability of the safety of a medium-low voltage distribution network is improved.
At present, the evaluation of the insulation piercing connectors is limited to factory tests, but the wire clamps qualified in factory may be influenced by external factors and operated improperly to cause the overall performance of the wire clamps to be reduced in practice, and currently, a systematic method for evaluating the insulation piercing connectors in operation is still lacking in China. The existing wire clamp state detection in operation mainly adopts an infrared temperature measurement technology, the technology is convenient and fast, and the method is widely applied to the diagnosis of the operation state of power grid equipment. However, the technology can only measure the surface temperature of the wire clamp, and practical research shows that the surface temperature of the wire clamp is greatly different from the internal temperature, the simple estimation of the internal temperature by using the surface temperature is unreasonable, and the influence rule of the possible defects of the wire clamp on the temperature distribution is unclear. Therefore, aiming at the comprehensive complex problems of insufficient metal contact force, insulation defect, environmental influence and the like of the insulation piercing connector, the detection method for visually observing the internal structure is necessary.
Digital flaw detection technology began to sprout in the early 60's of the 20 th century, and by the 80's, radiographic digital image processing has been widely used. Later, the ray imaging technology is tried to be applied to the detection of the inner pore of the closed metal, but the imaging quality is low, and the accuracy is not up to the standard and is set aside. Today, the rapid development of computer image processing technology has already made breakthrough progress in micro-focus and pixel-level lossless imaging. This provides a good technical basis for digital radiographic inspection. Determining the technological parameters, the spatial resolution and the density resolution required by the detection of the composite material test piece for the experiment by carrying out related quantitative analysis on the technological parameters of the micro CT; the method is one of the problems that needs to be solved at present by researching the internal structure tomographic image characteristics of the composite material under different typical defects, optimizing the reconstruction processing technology and realizing the intuitive, clear and nondestructive detection of the internal structure and the defects of the multi-type insulation puncture wire clamp.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a non-destructive testing device and a non-destructive testing method for an insulation piercing connector based on CT tomography, which can accurately and reliably master the internal structure of the insulation piercing connector, analyze the contact condition of the insulation piercing connector and effectively evaluate the contact condition.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a non-destructive testing device for an insulated puncture wire clamp based on CT tomography comprises a CT tomography scanner, the insulated puncture wire clamp, an insulated wire main line, an insulated wire branch line, a signal transmission line, a power line, an analog/digital converter, a motor controller, an AC/DC converter, a computer and a power module, wherein the insulated wire main line and the insulated wire branch line are respectively inserted into the insulated puncture wire clamp, and the insulated puncture wire clamp is coaxially fixed inside the CT tomography scanner; the power supply module is connected with the CT tomography scanner through the AC-DC converter; the CT tomoscanner is respectively connected with the input end of the analog/digital converter and the input end of the motor controller through signal transmission lines, the output end of the analog/digital converter and the output end of the motor controller are respectively connected with the computer through signal transmission lines, and the computer processes and analyzes the output signals of the CT tomoscanner through the analog/digital converter.
Moreover, the CT tomography scanner includes: the X-ray CT tomography system comprises a mechanical fixing device, an X-ray generating and receiving guide rail, an X-ray generator, a semicircular mechanical fixing and wire guiding box, a CT tomography fixing device, a magnetic adsorption device, an X-ray transmission line, a motor power supply/control line, a PPS plastic shell, a motor guide rail, a motor and an X-ray receiver, wherein the two CT tomography fixing devices are symmetrically arranged on the circumferential outer wall of the PPS plastic shell from top to bottom, the magnetic adsorption device is arranged in the CT tomography fixing device, the motor guide rail is arranged on the circumferential inner wall of the PPS plastic shell, the motor is arranged on the motor guide rail, the X-ray generating and receiving guide rail is coaxially sleeved with the X-ray generating and receiving guide rail, the X-ray generator, the semicircular mechanical fixing and wire guiding box and the X-ray receiver are arranged on the X-ray generating and receiving guide rail, the X-ray transmission line and the motor power supply/control line are connected to the signal transmission line, and the mechanical fixing device is arranged in the CT tomography scanner to fix the insulating puncture wire clamp.
Furthermore, the CT tomography scanner is of a longitudinally separable structure and is fixed by a CT tomography scanner fixing device.
And the motor guide rail is a spiral guide rail, and the X-ray generator, the X-ray receiver, the mechanical fixation between the X-ray generator and the X-ray receiver and the wire box realize axial and radial spiral movement through the motor.
And the X-ray receiver comprises a solid signal receiver, a scintillation crystal, a light guide pipe, a photoelectric signal converter, a gas signal detector, an airflow signal receiver and a current/voltage converter, wherein the solid signal receiver, the scintillation crystal, the light guide pipe and the photoelectric signal converter are sequentially connected, the gas signal detector, the airflow signal receiver and the current/voltage converter are sequentially connected, X-rays are respectively input into the solid signal receiver and the gas signal detector, and the photoelectric signal converter and the current/voltage converter jointly output an analog signal.
And the computer comprises a motor movement control system, an image reconstruction computing system, an information storage system and a visual man-machine interaction system, wherein the motor movement control system and the image reconstruction computing system input or output digital signals, and the information storage system is respectively connected with the image reconstruction computing system and the visual man-machine interaction system in a bidirectional way.
A detection method of a nondestructive testing device for an insulation piercing connector based on CT tomography comprises the following steps:
step 1, fixing an insulation puncture wire clamp inserted into an insulation lead main wire and an insulation lead branch wire in a CT (computed tomography) scanner through a mechanical fixing device
step 3, the analog signal is transmitted to a computer through an analog/digital converter;
and 4, analyzing the data signal by a computer, reconstructing a fault image of the insulation piercing connector through a filtering back-projection algorithm, realizing three-dimensional image reconstruction through stacking the fault images through a linear interpolation algorithm, and realizing the nondestructive detection of the contact state of the insulation piercing connector according to the three-dimensional image.
The invention has the advantages and positive effects that:
the X-ray of CT tomography penetrates through the insulation puncture wire clamp and is received by the X-ray receiver; the axial and circumferential movement of the motor is controlled by the motor to realize tomography; the received signals are analyzed by a computer to realize the three-dimensional image reconstruction of the internal structure of the insulation piercing connector, and the purpose of nondestructive testing is realized. The method can accurately and reliably master the internal structure of the insulation piercing connector, analyzes the contact condition of the insulation piercing connector, effectively evaluates the contact condition, has important significance for improving the reliability of the insulation wire of the medium and low voltage distribution network, and greatly improves the power supply reliability of the medium and low voltage distribution network.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present invention;
FIG. 2 is a schematic view of a CT tomographic scanner of the present invention;
FIG. 3 is a schematic diagram of the X-ray receiver structure of the present invention;
FIG. 4 is a computer architecture diagram of the present invention.
1-CT fault scanner, 2-insulation puncture wire clamp, 3-insulation lead main line, 4-insulation lead branch line, 5-signal transmission line, 6-power line, 7-analog/digital converter, 8-motor controller, 9-AC/DC converter, 10-computer, 11-220/380V power supply, 12-mechanical fixing device, 13-X ray generating and receiving guide rail, 14-X ray generator, 15-semicircular mechanical fixing and guide wire box, 16-CT scanner fixing device, 17-magnetic adsorption device, 18-X ray transmission line and motor power supply/control line, 19-PPS plastic shell, 20-motor guide rail, 21-motor and 22-X ray receiver.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A non-destructive testing device for an insulation puncture wire clamp based on CT tomography is disclosed, as shown in figure 1, and comprises a CT tomography scanner 1, an insulation puncture wire clamp 2, an insulation lead main line 3, an insulation lead branch line 4, a signal transmission line 5, a power line 6, an analog/digital converter 7, a motor controller 8, an AC/DC converter 9, a computer 10 and an 220/380V power supply 11, wherein the insulation lead main line and the insulation lead branch line are respectively inserted into the insulation puncture wire clamp, and the insulation puncture wire clamp is coaxially fixed inside the CT tomography scanner; the 220/380V power supply is connected with the CT tomography scanner through the AC-DC converter to supply power for the CT tomography scanner; the CT tomoscanner is respectively connected with the input end of an analog/digital converter and the input end of a motor controller through signal transmission lines, the output end of the analog/digital converter and the output end of the motor controller are respectively connected with a computer through the signal transmission lines, and the computer processes and analyzes the output signal of the CT tomoscanner through the analog/digital converter and controls a motor 21 in the CT tomoscanner to move through the motor controller.
As shown in fig. 2, the CT scanner is a longitudinally split structure (shown by a dotted line in fig. 2), and includes: the X-ray CT tomography system comprises a mechanical fixing device 12, an X-ray generating and receiving guide rail 13, an X-ray generator 14, a semicircular mechanical fixing and guiding box 15, a CT tomoscanner fixing device 16, a magnetic adsorption device 17, an X-ray transmission line and motor power supply/control line 18, a PPS plastic shell 19, a motor guide rail 20, a motor 21 and an X-ray receiver 22, wherein the two CT tomoscanner fixing devices are symmetrically arranged on the circumferential outer wall of the PPS plastic shell from top to bottom, the magnetic adsorption device is arranged in the CT tomoscanner fixing device, the motor guide rail is arranged on the circumferential inner wall of the PPS plastic shell, the motor is arranged on the motor guide rail, the X-ray generating and receiving guide rail is coaxially sleeved with the motor guide rail, the X-ray generator, the semicircular mechanical fixing and guiding box and the X-ray receiver are arranged on the X-ray generating and receiving guide rail, and the X-, the X-ray transmission line and the motor power supply/control line are connected to the signal transmission line, and the mechanical fixing device is arranged in the CT tomography scanner to fix the insulating puncture wire clamp. The motor guide rail is a spiral guide rail, and the X-ray generator, the X-ray receiver and the mechanical fixation therebetween and the lead box realize axial and radial spiral movement through the motor.
As shown in fig. 3, the X-ray receiver includes a solid signal receiver, a scintillation crystal, a light guide, a photoelectric signal converter, a gas signal detector, an airflow signal receiver, and a current/voltage converter, the solid signal receiver, the scintillation crystal, the light guide, and the photoelectric signal converter are sequentially connected, the gas signal detector, the airflow signal receiver, and the current/voltage converter are sequentially connected, the X-ray is respectively input to the solid signal receiver and the gas signal detector, the photoelectric signal converter and the current/voltage converter output an analog signal together, and the solid signal receiver and the gas signal receiver can complement and perfect the signal, and realize the full collection of data.
As shown in fig. 4, the computer includes a motor movement control system, an image reconstruction computing system, an information storage system and a visual human-computer interaction system, the motor movement control system and the image reconstruction computing system input or output digital signals, and the information storage system is respectively connected with the image reconstruction computing system and the visual human-computer interaction system in a bidirectional manner.
A detection method of a nondestructive testing device for an insulation piercing connector based on CT tomography comprises the following steps:
step 1, fixing an insulation puncture wire clamp inserted into an insulation lead main wire and an insulation lead branch wire in a CT (computed tomography) scanner through a mechanical fixing device
step 3, the analog signal is transmitted to a computer through an analog/digital converter;
and 4, analyzing the data signal by a computer, reconstructing a fault image of the insulation piercing connector through a filtering back-projection algorithm, realizing three-dimensional image reconstruction through stacking the fault images through a linear interpolation algorithm, and realizing the nondestructive detection of the contact state of the insulation piercing connector according to the three-dimensional image. .
It should be emphasized that the embodiments described herein are illustrative rather than restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but also includes other embodiments that can be derived from the technical solutions of the present invention by those skilled in the art.
Claims (7)
1. The utility model provides an insulating puncture fastener nondestructive test device based on CT tomoscan which characterized in that: the CT fault diagnosis device comprises a CT fault scanner, an insulation puncture wire clamp, an insulation lead main wire, an insulation lead branch wire, a signal transmission line, a power line, an analog/digital converter, a motor controller, an AC/DC converter, a computer and a power module, wherein the insulation lead main wire and the insulation lead branch wire are respectively inserted into the insulation puncture wire clamp, and the insulation puncture wire clamp is coaxially fixed inside the CT fault scanner; the power supply module is connected with the CT tomography scanner through the AC-DC converter; the CT tomoscanner is respectively connected with the input end of the analog/digital converter and the input end of the motor controller through signal transmission lines, the output end of the analog/digital converter and the output end of the motor controller are respectively connected with the computer through signal transmission lines, and the computer processes and analyzes the output signals of the CT tomoscanner through the analog/digital converter.
2. The non-destructive testing device for the insulation piercing connector based on CT tomography according to claim 1, characterized in that: the CT tomographic scanner includes: the X-ray CT tomography system comprises a mechanical fixing device, an X-ray generating and receiving guide rail, an X-ray generator, a semicircular mechanical fixing and wire guiding box, a CT tomography fixing device, a magnetic adsorption device, an X-ray transmission line, a motor power supply/control line, a PPS plastic shell, a motor guide rail, a motor and an X-ray receiver, wherein the two CT tomography fixing devices are symmetrically arranged on the circumferential outer wall of the PPS plastic shell from top to bottom, the magnetic adsorption device is arranged in the CT tomography fixing device, the motor guide rail is arranged on the circumferential inner wall of the PPS plastic shell, the motor is arranged on the motor guide rail, the X-ray generating and receiving guide rail is coaxially sleeved with the X-ray generating and receiving guide rail, the X-ray generator, the semicircular mechanical fixing and wire guiding box and the X-ray receiver are arranged on the X-ray generating and receiving guide rail, the X-ray transmission line and the motor power supply/control line are connected to the signal transmission line, and the mechanical fixing device is arranged in the CT tomography scanner to fix the insulating puncture wire clamp.
3. The non-destructive testing device for the insulation piercing connector based on CT tomography according to claim 1, characterized in that: the CT tomography scanner is of a longitudinal separable structure and is fixed through a CT tomography scanner fixing device.
4. The non-destructive testing device for the insulation piercing connector based on CT tomography according to claim 2, characterized in that: the motor guide rail is a spiral guide rail, and the X-ray generator, the X-ray receiver and the mechanical fixation therebetween and the lead box realize axial and radial spiral movement through the motor.
5. The non-destructive testing device for the insulation piercing connector based on CT tomography according to claim 1, characterized in that: the X-ray receiver comprises a solid signal receiver, a scintillation crystal, a light guide pipe, a photoelectric signal converter, a gas signal detector, an airflow signal receiver and a current/voltage converter, wherein the solid signal receiver, the scintillation crystal, the light guide pipe and the photoelectric signal converter are sequentially connected, the gas signal detector, the airflow signal receiver and the current/voltage converter are sequentially connected, X-rays are respectively input into the solid signal receiver and the gas signal detector, and the photoelectric signal converter and the current/voltage converter jointly output analog signals.
6. The non-destructive testing device for the insulation piercing connector based on CT tomography according to claim 1, characterized in that: according to the computer, the computer comprises a motor movement control system, an image reconstruction computing system, an information storage system and a visual human-computer interaction system, the motor movement control system and the image reconstruction computing system input or output digital signals, and the information storage system is respectively connected with the image reconstruction computing system and the visual human-computer interaction system in a two-way mode.
7. The detection method of the CT tomography-based nondestructive testing device for the insulated puncture wire clamps as claimed in any one of claims 1 to 7, characterized in that: the method comprises the following steps:
step 1, fixing an insulation puncture wire clamp inserted into an insulation lead main wire and an insulation lead branch wire in a CT (computed tomography) scanner through a mechanical fixing device
Step 2, the computer completes CT tomoscanning by controlling the motor to obtain the strength of X-rays of the insulation puncture clamp at each axial position and each axial position, and X-ray signals at different positions are input to an X-ray receiver to be processed to generate analog signals;
step 3, the analog signal is transmitted to a computer through an analog/digital converter;
and 4, analyzing the data signal by a computer, reconstructing a fault image of the insulation piercing connector through a filtering back-projection algorithm, realizing three-dimensional image reconstruction through stacking the fault images through a linear interpolation algorithm, and realizing the nondestructive detection of the contact state of the insulation piercing connector according to the three-dimensional image.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116098643A (en) * | 2023-04-11 | 2023-05-12 | 湖南涛尚医疗器械有限公司 | Portable CT scanning equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070100178A (en) * | 2006-04-06 | 2007-10-10 | 지이 메디컬 시스템즈 글로발 테크놀러지 캄파니 엘엘씨 | X-ray ct apparatus |
| CN105030267A (en) * | 2015-07-14 | 2015-11-11 | 天津福斯特科技股份有限公司 | X-ray tomographic scanner |
| DE102016101005A1 (en) * | 2015-02-11 | 2016-08-11 | Werth Messtechnik Gmbh | Device and method for computer tomographic measurement of a workpiece |
| CN106996940A (en) * | 2017-05-28 | 2017-08-01 | 陕西臻源电力科技服务有限公司 | A kind of large-section lead strain clamp nondestructive detection system and device |
| CN109106390A (en) * | 2018-06-28 | 2019-01-01 | 北京航空航天大学 | A kind of short scanning computed tomography method for reconstructing of fan-beam and device of rotation center biasing |
| CN110286136A (en) * | 2019-07-31 | 2019-09-27 | 中国电力科学研究院有限公司 | The X-ray three-D imaging method and system of in-service GIS combination electric appliance disc insulator |
| CN111067558A (en) * | 2019-12-05 | 2020-04-28 | 东软医疗系统股份有限公司 | Image reconstruction method, device and equipment and multilayer spiral CT system |
-
2021
- 2021-01-18 CN CN202110062488.0A patent/CN112903728A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070100178A (en) * | 2006-04-06 | 2007-10-10 | 지이 메디컬 시스템즈 글로발 테크놀러지 캄파니 엘엘씨 | X-ray ct apparatus |
| DE102016101005A1 (en) * | 2015-02-11 | 2016-08-11 | Werth Messtechnik Gmbh | Device and method for computer tomographic measurement of a workpiece |
| CN105030267A (en) * | 2015-07-14 | 2015-11-11 | 天津福斯特科技股份有限公司 | X-ray tomographic scanner |
| CN106996940A (en) * | 2017-05-28 | 2017-08-01 | 陕西臻源电力科技服务有限公司 | A kind of large-section lead strain clamp nondestructive detection system and device |
| CN109106390A (en) * | 2018-06-28 | 2019-01-01 | 北京航空航天大学 | A kind of short scanning computed tomography method for reconstructing of fan-beam and device of rotation center biasing |
| CN110286136A (en) * | 2019-07-31 | 2019-09-27 | 中国电力科学研究院有限公司 | The X-ray three-D imaging method and system of in-service GIS combination electric appliance disc insulator |
| CN111067558A (en) * | 2019-12-05 | 2020-04-28 | 东软医疗系统股份有限公司 | Image reconstruction method, device and equipment and multilayer spiral CT system |
Non-Patent Citations (1)
| Title |
|---|
| 邹圣星: "基于X射线无损探伤技术在输电线路中的研究", 《电工技术》, no. 11, 10 November 2016 (2016-11-10), pages 108 - 109 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116098643A (en) * | 2023-04-11 | 2023-05-12 | 湖南涛尚医疗器械有限公司 | Portable CT scanning equipment |
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