CN211668431U - Integrated composite probe for detecting deformation of pipeline - Google Patents
Integrated composite probe for detecting deformation of pipeline Download PDFInfo
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- CN211668431U CN211668431U CN201922076353.0U CN201922076353U CN211668431U CN 211668431 U CN211668431 U CN 211668431U CN 201922076353 U CN201922076353 U CN 201922076353U CN 211668431 U CN211668431 U CN 211668431U
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- eddy current
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- magnetic rotation
- pipeline
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Abstract
The utility model discloses an integration pipeline warp internal test composite probe, including pulse eddy current testing module and magnetic rotary encoding detection module, its characterized in that: the upper portion of pulse eddy current test module is equipped with pulse eddy current deformation sensor, and pulse eddy current deformation sensor's sub-unit connection has the vortex detection unit casing, pulse eddy current deformation sensor's upper portion is equipped with compound magnetic field detecting element, the upper portion of magnetic rotation code detecting module is equipped with the magnetic rotation code detecting element protective housing, the inside magnetic rotation structure that is equipped with of magnetic rotation code detecting element protective housing, radial magnet is installed to a magnetic rotation structure tip, magnetic rotation code detecting element protective housing inboard is equipped with hall chip, the utility model discloses increase the magnetic detection component of two symmetric distributions on the probe protective housing, increase pipeline detection's circumference precision based on pulse eddy current detection's principle, realize the three-dimensional reconsitution of pipeline deformation profile to improve and detect the precision.
Description
Technical Field
The utility model relates to a pipeline deformation detects technical field, specifically is an integrated pipeline warp internal test composite probe.
Background
Many pipelines are buried underground, the pipeline is deformed, bent, displaced, corroded and other defects can be caused due to the influence of factors such as geological condition change, pipeline corrosion and the like for too long time, the defects can cause pipeline breakage when accumulated to a certain degree, accidents are caused, and public property and life safety are harmed, so that pipeline detection equipment is required to be used for regularly detecting the interior of the pipeline, the pipeline can be ensured to run safely, problems existing in the pipeline can be timely and accurately found, the service life of the pipeline is prolonged, the traditional detection probe is low in measurement precision, only the maximum deformation quantity of the pipeline can be detected, and the pipeline deformation near the maximum deformation quantity cannot be detected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an integration pipeline warp interior detection composite probe to solve traditional test probe measurement accuracy ratio lower, and can only detect the biggest deformation volume of pipeline deformation, can not detect near the problem of the pipeline deformation of biggest deformation.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an integration pipeline warp interior detection composite probe, includes pulse eddy current testing module and magnetic rotation coding detection module, its characterized in that: the upper portion of pulse eddy current detection module is equipped with pulse eddy current deformation sensor, and pulse eddy current deformation sensor's sub-unit connection has the eddy current detection unit casing, pulse eddy current deformation sensor's upper portion is equipped with compound magnetic field detecting element, the one end fixedly connected with link of eddy current detection unit casing, and the other end of link is connected with fixture, fixture's downside is connected with four-bar linkage, the upper portion of rotatory code detection module of magnetism is equipped with the rotatory code detection unit protective housing of magnetism, the inside magnetism revolution mechanic that is equipped with of the rotatory code detection unit protective housing of magnetism, radial magnet is installed to a magnetism revolution mechanic tip, the rotatory code detection unit protective housing inboard of magnetism is equipped with hall chip, the lower part of the rotatory code detection unit protective housing of magnetism is connected with the base.
Preferably, the pulse eddy current deformation sensor is composed of a TMR2503 magnetic flux tunnel type chip, an amplifying circuit and a filter circuit, two exciting coils are arranged at the lower part of the pulse eddy current deformation sensor and formed by winding enameled wires, the pulse eddy current deformation sensor is used for detecting the intensity of the magnetic field, the magnetic field is generated by pulse exciting voltage, and the detected pipeline generates an eddy current field.
Preferably, the end part of the four-bar mechanism is connected with a rotating shaft, so that the four-bar mechanism, the clamping mechanism and the eddy current deformation sensor base form a parallelogram mechanism.
Preferably, the base can be connected with the rigid framework of the inner detector, so that the overall stability of the detection probe can be improved.
Preferably, the Hall chip is an AS5145 chip and is connected with one end of the four-bar mechanism through a magnetic rotating structure, the Hall chip has the characteristics of high precision, small size and non-contact detection, and a cylindrical magnet which is magnetized in the radial direction is placed at a certain height right above the Hall chip. When the magnet rotates around the axis, the Hall chip can detect the corresponding rotation angle and transmit a signal to a data storage system of the detector in the pipeline, so that the aim of detecting the maximum deformation of the pipeline is fulfilled.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses utilize pulse eddy current deformation sensor and eddy current deformation sensor base, and based on rotatory coding detection technique of magnetism and vortex range finding principle, be applied to the detection of pipeline deformation volume, increase the effective information that pipeline circumference detected, improve and detect the precision, can keep pulse eddy current deformation sensor and eddy current deformation sensor base to keep the level constantly through four-bar linkage, pipeline deformation detector increases the magnetic detection component of two symmetric distributions on the probe protective housing, the circumference precision that the principle based on pulse eddy current detection increases the pipeline and detects, realize the three-dimensional reconsitution of pipeline deformation profile.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure of the present invention.
Fig. 3 is a schematic view of the bottom view of the present invention.
Fig. 4 is a schematic view of the magnetic rotation structure of the present invention.
In the figure: the device comprises a 1-pulse eddy current deformation sensor, a 2-eddy current detection unit shell, a 3-clamping mechanism, a 4-four-bar mechanism, a 5-Hall chip, a 6-base, a 7-composite magnetic field detection unit, an 8-connecting frame, a 9-radial magnet, a 10-magnetic rotation structure and an 11-magnetic rotation coding detection unit protective shell.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, in the embodiment of the present invention, an integrated composite probe for detecting pipeline deformation includes a pulse eddy current detection module and a magnetic rotation coding detection module, wherein a pulse eddy current deformation sensor 1 is disposed on an upper portion of the pulse eddy current detection module, the pulse eddy current deformation sensor 1 can detect the intensity of a composite magnetic field, a lower portion of the pulse eddy current deformation sensor 1 is connected to an eddy current sensor housing 2, the eddy current sensor housing 2 provides a mechanical support structure for an excitation coil and the pulse eddy current deformation sensor, a composite magnetic field detection unit 7 is disposed on an upper portion of the pulse eddy current deformation sensor 1, the composite magnetic field detection unit 7 can place an excitation signal and a magnetic detection element, a connecting frame 8 is fixedly connected to one end of the eddy current sensor housing 2, the stability of the detection probe can be improved, and the other end of the connecting frame 8 is connected to a, the clamping mechanism 3 can be connected with a four-bar mechanism and a probe, the four-bar mechanism 4 is connected to the lower side of the clamping mechanism 3, the four-bar mechanism 4 can keep a detection probe protective shell horizontal with a base at any time and improve the accuracy of eddy current detection deformation, a magnetic rotation coding detection unit protective shell 11 is arranged at the upper part of the magnetic rotation coding detection module, the magnetic rotation coding detection unit protective shell 11 has the function of storing a magnetic rotation coding chip, a magnetic rotation structure 10 is arranged in the magnetic rotation coding detection unit protective shell 11, a radial magnet 9 is installed at one end part of the magnetic rotation structure 10, a Hall chip 5 is arranged at the inner side of the magnetic rotation coding detection unit protective shell 11, the Hall chip 5 can detect the rotation angle of the radial magnet 9 to detect the maximum deformation of a pipeline, and the lower part of the magnetic rotation coding detection unit protective shell 11 is, the base 6 may provide a mechanical support structure for the entire probe.
The pulse eddy current deformation sensor 1 is composed of a TMR2503 magnetic flux tunnel type chip, an amplifying circuit and a filter circuit, two exciting coils are arranged on the lower portion of the pulse eddy current deformation sensor 1 and formed by winding enameled wires, the pulse eddy current deformation sensor 1 is used for detecting the intensity of magnetic field, the magnetic field is generated through pulse exciting voltage, and an eddy current field is generated in a detected pipeline.
The end part of the four-bar mechanism 4 is connected with a rotating shaft, so that the four-bar mechanism 4, the clamping mechanism 3 and the eddy current deformation sensor base 6 form a parallelogram mechanism.
The base 6 can be connected with the rigid framework of the internal detector, and the overall stability of the detection probe can be improved.
The type of the Hall chip 5 is AS5145 chip, the Hall chip 5 is connected with one end of the four-bar mechanism 4 through the magnetic rotating structure 10, the Hall chip 5 has the characteristics of high precision, small volume and non-contact detection, and a cylindrical magnet which is magnetized in the radial direction is placed at a certain height right above the Hall chip 5. When the magnet rotates around the axis, the Hall chip 5 can detect the corresponding rotation angle and transmit a signal to a data storage system of the detector in the pipeline, so that the aim of detecting the maximum deformation of the pipeline is fulfilled.
The utility model discloses deformation detection of pipeline deformation test probe mainly contains magnetic rotary encoder and eddy current test probe, detect the deformation volume of the biggest deformation department of deformation pipeline through the angle change between pulse eddy current deformation sensor 1 and eddy current deformation sensor base 6, because the magnetic sensing element size is very little, can increase the quantity of check point in the circumference of pipeline, thereby improve the detection precision of deformation in the pipeline, simultaneously, excitation coil and detecting element are placed on the upper portion of probe protective housing 7, the information of pipeline deformation is demarcated through the change of induction composite magnetic field intensity induced chip output voltage, utilize pulse eddy current deformation sensor 1 to produce the primary magnetic field through pulse excitation voltage, the pipeline to be measured produces the eddy current field, the eddy current field produces the secondary magnetic field, when there is deformation in the pipeline, the eddy current field changes, the composite magnetic field changes along with the value, hall chip 5 detects the change of composite magnetic field, when the pipeline deforms, the distance between the exciting coil and the pipeline changes, the Hall chip 5 calibrates deformation information of the pipeline by detecting the change condition of the composite magnetic field to achieve the purpose of pipeline deformation detection, the magnetic rotary encoding detection chip in the magnetic rotary encoding mechanism shell 5 records the angle change of the four-bar mechanism caused by pipeline deformation so that the output voltage of the detection chip changes, and the deformation quantity of the pipeline is calibrated through the change of the voltage value in the later data processing, so that the detection precision of the pipeline can be ensured.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The utility model provides an integration pipeline warp interior detection composite probe, includes pulse eddy current testing module and magnetic rotation coding detection module, its characterized in that: the upper portion of the pulse eddy current detection module is provided with a pulse eddy current deformation sensor (1), the lower portion of the pulse eddy current deformation sensor (1) is connected with an eddy current detection unit shell (2), the upper portion of the pulse eddy current deformation sensor (1) is provided with a composite magnetic field detection unit (7), one end of the eddy current detection unit shell (2) is fixedly connected with a connecting frame (8), the other end of the connecting frame (8) is connected with a clamping mechanism (3), the lower side of the clamping mechanism (3) is connected with a four-bar mechanism (4), the upper portion of the magnetic rotation coding detection module is provided with a magnetic rotation coding detection unit protective shell (11), a magnetic rotation structure (10) is arranged inside the magnetic rotation coding detection unit protective shell (11), one end portion of the magnetic rotation structure (10) is provided with a radial magnet (9), and the inner side of the magnetic rotation coding detection unit protective shell (11) is provided with, the lower part of the magnetic rotation coding detection unit protective shell (11) is connected with the base (6).
2. The integrated composite probe for detecting deformation in a pipeline according to claim 1, wherein: the pulse eddy current deformation sensor (1) is composed of a TMR2503 magnetic flux tunnel type chip, an amplifying circuit and a filter circuit, and the lower portion of the pulse eddy current deformation sensor (1) is provided with two excitation coils which are formed by winding enameled wires.
3. The integrated composite probe for detecting deformation in a pipeline according to claim 1, wherein: the end part of the four-bar mechanism (4) is connected with a rotating shaft.
4. The integrated composite probe for detecting deformation in a pipeline according to claim 1, wherein: the base (6) can be connected with the rigid framework of the inner detector.
5. The integrated composite probe for detecting deformation in a pipeline according to claim 1, wherein: the Hall chip (5) is in an AS5145 chip type, and the Hall chip (5) is connected with one end of the four-bar mechanism (4) through the magnetic rotating structure (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922076353.0U CN211668431U (en) | 2019-11-27 | 2019-11-27 | Integrated composite probe for detecting deformation of pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922076353.0U CN211668431U (en) | 2019-11-27 | 2019-11-27 | Integrated composite probe for detecting deformation of pipeline |
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| Publication Number | Publication Date |
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| CN211668431U true CN211668431U (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922076353.0U Expired - Fee Related CN211668431U (en) | 2019-11-27 | 2019-11-27 | Integrated composite probe for detecting deformation of pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793429A (en) * | 2019-11-27 | 2020-02-14 | 中国特种设备检测研究院 | Integrated composite probe for detecting deformation of pipeline |
-
2019
- 2019-11-27 CN CN201922076353.0U patent/CN211668431U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793429A (en) * | 2019-11-27 | 2020-02-14 | 中国特种设备检测研究院 | Integrated composite probe for detecting deformation of pipeline |
| CN110793429B (en) * | 2019-11-27 | 2024-05-31 | 中国特种设备检测研究院 | Integrated pipeline deformation inner detection composite probe |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201013 Termination date: 20211127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |