High-altitude pipeline pulsed eddy current corrosion detection device

Abstract

The utility model discloses a high-altitude pipeline pulsed eddy current corrosion detection device, which relates to the technical field of nondestructive testing equipment, aims to solve the problem of low high-altitude pipeline detection efficiency, and is characterized in that a fixing device is arranged at one end of a detection device bracket, and is connected with a probe through an elastic connecting rod; a driven wheel is mounted at the bottom of the probe, a first driving motor is mounted on the fixing device, and the output end of the first driving motor is connected with a first driving wheel through a gear; a control device is installed at the other end of the detection device support, an auxiliary driving device is hinged to the bottom of the control device, a steering motor and a control module are installed in the control device, and the output end of the steering motor is connected to one side of the top end of the auxiliary driving device through a steering rod. Manual high-altitude climbing or hoisting of detection equipment is not needed, pipeline detection is achieved through remote control, the detection device automatically and flexibly moves, and the safety risk is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of nondestructive testing equipment, and specifically relates to a high-altitude pipeline pulse eddy current corrosion detection device. BACKGROUND

[0002] In the petrochemical industry, high-altitude equipment pipelines are exposed to complex environments for a long time, and defects such as corrosion and wear can easily cause safety accidents such as leakage and explosion. Therefore, it is crucial to regularly conduct nondestructive testing on high-altitude equipment pipelines.

[0003] The existing detection methods rely on manual climbing or hoisting equipment operation, which has high safety risks and low detection efficiency. Meanwhile, the traditional crawling detection device has the following core defects: first, the magnetic field of the adsorption mechanism can seriously interfere with the pulse eddy current detection signal, resulting in a decrease in detection accuracy; second, it cannot flexibly adapt to pipelines of different diameters and lacks sufficient adsorption stability; third, the probe of the detection device has poor adhesion to the pipeline, which can easily affect the continuity of detection due to friction loss; and fourth, the detection method mainly relies on ultrasonic thickness measurement, which has a small coverage area and mainly relies on point measurement, resulting in low detection efficiency.

[0004] Currently, there is a lack of integrated detection equipment in the industry that is specifically designed for high-altitude equipment pipelines, integrates anti-interference design, self-adaptive adjustment, and stable adhesion detection, and meets the corrosion detection needs of high-altitude pipelines in terms of efficiency, accuracy, and safety. Therefore, there is an urgent need to develop a new detection device to fill this technical gap and completely solve the many drawbacks of existing detection modes. INVENTION CONTENTS

[0005] To solve the above problems, i.e., to solve the problems raised in the background art, the utility model provides a high-altitude pipeline pulse eddy current corrosion detection device, which includes a detection device support, a fixing device is installed at one end of the detection device support, a probe is connected to the fixing device through an elastic connecting rod, a driven wheel is installed at the bottom of the probe, a first driving motor is installed on the fixing device, and a first driving wheel is connected to the output end of the first driving motor through a gear.

[0006] The utility model further provides that a second driving motor is installed inside the auxiliary driving device, a second driving wheel is connected to the output end of the second driving motor through a gear, and the first driving wheel and the second driving wheel are both permanent magnets.

[0007] The utility model discloses further provide: the inside of first drive motor, second drive motor and steering motor all is provided with encoder.

[0008] The utility model discloses further provide: the inside of probe is provided with excitation coil, detection coil and magnetic field shielding part, and one side of probe is provided with probe wiring port.

[0009] The utility model discloses further provide: battery electric connection has probe wiring port, first drive motor, second drive motor, steering motor and control module respectively.

[0010] The utility model discloses further provide: control module is provided with microprocessor, power management module, signal processing module and wireless communication module, and control module signal connection has encoder and external terminal, and control module control connection has probe, first drive motor, second drive motor and steering motor.

[0011] The utility model discloses beneficial technical effect is: 1. safe and efficient: need not manual high -altitude climbing or hoisting detection equipment, realizes pipeline detection through remote control, and detection device is automatically flexible removal, and the safety risk is reduced greatly, and the pulse eddy current corrosion detection probe supports large -area scanning, and the detection efficiency of the same section pipeline, full -coverage detection is compared ultrasonic picture grid point thickness detection and is improved obviously mainly with line measurement.

[0012] 2. Anti -interference and detection precision: the magnetic field shielding part in probe effectively inhibits the magnetic field interference of drive wheel, and probe combines elastic connecting rod, and the accuracy and stability of corrosion defect detection are ensured. Through encoder, the distribution of the wall thickness value of the different position of pipeline can be embodied completely, and the metal loss percentage is directly analyzed. Signal processing module is used for the amplification, filtering and analysis processing of the eddy current signal obtained by detection coil, and the position, size and other information of corrosion defect are accurately identified, and through wireless communication module and external terminal establish connection, realize detection device removal control, detection parameter adjustment and detection data real -time transmission.

[0013] 3. Strong adaptability: curvature adjustment part can flexibly adapt the high -altitude pipeline of different diameters, and the magnetic wheel design of isosceles triangle distribution cooperates with high torque motor, and ensures the stable movement and adsorption of detection device on straight pipe, elbow and complex route.

[0014] 4. Convenient operation: wireless communication module realizes remote control and data transmission, and detection personnel can view detection result in real time through external terminal, and adjust crawling speed and direction as needed, and operation is flexible and efficient, and detection device is small in size, light in weight, and reduces investment cost. DRAWINGS

[0015] Figure 1 The utility model discloses left side structure schematic diagram shows.

[0016] Figure 2 The utility model discloses a right side structure schematic view shows.

[0017] Figure 3 The utility model discloses a front view shows.

[0018] Figure 4 The utility model discloses a rear view shows.

[0019] Figure 5 The utility model discloses a top view shows.

[0020] Figure 6 The utility model discloses a bottom view shows.

[0021] The utility model discloses a detection device support 1, first drive wheel 2, fixed device 3, control device 4, curvature adjustment part 5, elastic connecting rod 6, probe 7, first drive motor 8, battery 9, steering rod 10, probe wiring port 11, auxiliary drive device 12, driven wheel 13, second drive motor 14, second drive wheel 15. DETAILED DESCRIPTION

[0022] The preferred embodiments of the utility model are described below with reference to the drawings. Figures 1-6 Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0023] The utility model provides a kind of high-altitude pipeline pulse eddy current corrosion detection device, including detection device support 1, detection device support 1 is made of lightweight high-strength material as the structure framework of complete machine, for bearing installation battery 9, first drive motor 8, probe 7 and control device 4, give consideration to structural strength and lightweight demand, guarantee complete machine gravity balance, adapt to the movement demand of high-altitude pipeline surface.

[0024] One end of detection device support 1 is provided with fixed device 3, and fixed device 3 is connected with probe 7 by elastic connecting rod 6, and elastic connecting rod 6 can automatically adjust the posture of probe 7, to ensure that the contact surface of probe 7 is closely combined with the pipeline, and the stability of detection signal is improved;First drive motor 8 is installed on fixed device 3, and first drive motor 8, second drive motor 14 and steering motor are all precision control motors, which are of high torque and low speed type, suitable for driving demand of complex route of pipeline, and can be servo motor or stepper motor.

[0025] The inside of the probe 7 is provided with an excitation coil, a detection coil and a magnetic field shielding component, the excitation coil is used to generate a pulsed magnetic field, and the detection coil is used to induct a pipeline eddy current signal. The probe 7 is based on the principle of electromagnetic induction, and the magnetic field change in the pipeline of the detection device needs to be collected during the detection process. However, the first driving wheel 2 and the second driving wheel 15 will interfere with the magnetic field. In view of this problem, the inside of the probe 7 is provided with a magnetic field shielding component to reduce the magnetic field interference. The manufacturer of the probe 7 is Shenyang Zhongke Weier Corrosion Control Technology Co., Ltd., and the model is MA23. One side of the probe 7 is provided with a probe connection port 11, the probe connection port 11 is connected with the battery 9 through an electric wire, and the bottom of the probe 7 is provided with a driven wheel 13, which can reduce the friction loss between the probe 7 and the surface of the pipeline.

[0026] The output end of the first driving motor 8 is connected with the first driving wheel 2 through a gear, and the first driving wheel 2 and the second driving wheel 15 are both made of permanent magnets. The permanent magnets have strong adsorption force with metal, so that the detection device can be closely attached to the wall of the pipeline to avoid falling from a high altitude. Figure 6 The two first driving wheels 2 and the second driving wheel 15 are distributed in an isosceles triangle shape to ensure the stability of the movement of the detection device.

[0027] The other end of the detection device support 1 is provided with a control device 4, and the bottom of the control device 4 is hingedly connected with an auxiliary driving device 12, which provides a rotating fulcrum for the turning of the detection device. The inside of the control device 4 is provided with a steering motor and a control module, which is a closed protective carrier of the steering motor and the control module. After the circuits of various components are connected, the control module is installed in the control device 4, which can effectively isolate the external environment from corroding the electronic elements. The output end of the steering motor is connected to one side of the top end of the auxiliary driving device 12 through a steering rod 10, and the power of the steering motor is transmitted through the steering rod 10 to deflect the auxiliary driving device 12, so as to limit the maximum turning angle and prevent imbalance. The inside of the detection device support 1 is provided with a battery 9, and three groups of storage batteries form a power system to supply power to all electric components such as the probe 7, the first driving motor 8, the second driving motor 14, the steering motor and the control module, so as to ensure the endurance.

[0028] The top end of the detection device support 1 is provided with a curvature adjusting component 5, which can flexibly adjust the curvature of the magnetic wheel according to the diameter of the pipeline to be detected, so as to ensure that the first driving wheel 2 and the second driving wheel 15 are completely adsorbed on the surface of the pipeline, and to adapt to the detection requirements of pipelines with different diameters.

[0029] The inside of the auxiliary driving device 12 is provided with a second driving motor 14, and the output end of the second driving motor 14 is connected with the second driving wheel 15 through a gear. The auxiliary driving device 12 provides auxiliary power and can deflect around the hinge point to adjust the trajectory of the whole machine in cooperation with the steering to improve the passing performance on complex routes.

[0030] The internal of the first driving motor 8, the second driving motor 14 and the steering motor are provided with encoders, through which the distribution of the wall thickness values at different positions of the pipeline can be fully reflected, and the percentage of metal loss can be intuitively analyzed.

[0031] The battery 9 is electrically connected with the probe connection port 11, the first driving motor 8, the second driving motor 14, the steering motor and the control module respectively. The power system of the whole device is composed of 3 groups of storage batteries, which supply power to the whole device.

[0032] The control module is provided with a microprocessor, a power management module, a signal processing module and a wireless communication module, and is signal-connected with the encoders and the external terminal. The control module is control-connected with the probe 7, the first driving motor 8, the second driving motor 14 and the steering motor. The control module is the central control and data processing of the whole machine, integrating multiple modules; receiving the external terminal instruction to control the operation of each component, processing the detection signal and the encoder data, and transmitting to the terminal in real time. The signal processing module is used for amplifying, filtering and analyzing the eddy current signal obtained by the detection coil, accurately identifying the position, size and other information of the corrosion defect; through the wireless communication module, the external terminal is connected to realize the mobile control of the detection device, the adjustment of the detection parameters and the real-time transmission of the detection data.

[0033] During the crawling process of the detection device, the detection personnel set the acquisition parameters and sent the acquisition instruction through the external terminal. After receiving the instruction, the control module makes the detection device move freely on the surface of the high-altitude equipment pipeline. The external terminal controls the pulse eddy current corrosion detection device to start working and detects the equipment pipeline. The detection personnel can view the position, size and other data of the corrosion defect through the external terminal, and can adjust the speed and direction of the detection device in real time according to the detection requirements, to ensure the comprehensiveness, stability and accuracy of the detection data.

[0034] Mobile control: the first driving motor 8 drives the first driving wheel 2 to realize forward or backward movement, and the steering motor adjusts the speed and direction of the second driving wheel 15 through the steering rod 10 to control the crawling track; when passing through the pipeline elbow, the control instruction is sent through the external terminal to adjust the frequency of the steering motor, so that the detection device smoothly transitions from the outer bending of the back side of the elbow to another straight pipe section.

[0035] Detection control: the external terminal sends a detection start instruction, and the detection device starts working. The probe 7 excites the coil to generate a pulse magnetic field, and the detection coil inducts the pipeline eddy current signal. After processing, the signal is transmitted to the external terminal in real time through the wireless communication module.

[0036] Although the utility model has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the utility model, and equivalent substitutions can be made to parts thereof, and in particular, as long as there is no structural conflict, each of the technical features mentioned in each of the embodiments can be combined in any manner. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0037] In the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In addition, it also needs to be explained that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] The term "includes" or any other similar term is intended to cover non-exclusive inclusion, so that the process, article or equipment / device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in the process, article or equipment / device.

[0040] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without deviating from the principles of the utility model, those skilled in the art can make equivalent changes or substitutions to related technical features, and the technical solutions after the changes or substitutions will fall within the protection scope of the utility model.

Claims

1. A high-altitude pipeline pulsed eddy current corrosion detection apparatus comprising a detection apparatus support (1), characterised in that: One end of the detection device support (1) is provided with a fixing device (3), the fixing device (3) is connected with a probe (7) through an elastic connecting rod (6), the bottom of the probe (7) is provided with a driven wheel (13), the fixing device (3) is provided with a first driving motor (8), the output end of the first driving motor (8) is connected with a first driving wheel (2) through a gear, The other end of the detection device support (1) is provided with a control device (4), the bottom of the control device (4) is hinged with an auxiliary driving device (12), the inside of the control device (4) is provided with a steering motor and a control module, the output end of the steering motor is connected with the top end of the auxiliary driving device (12) through a steering rod (10), the inside of the detection device support (1) is provided with a battery (9), the top end of the detection device support (1) is provided with a curvature adjusting part (5).

2. A high altitude pipeline pulsed eddy current corrosion detection apparatus as defined in claim 1, wherein: The inside of the auxiliary driving device (12) is provided with a second driving motor (14), the output end of the second driving motor (14) is connected with a second driving wheel (15) through a gear, the first driving wheel (2) and the second driving wheel (15) are both permanent magnets.

3. A high altitude pipeline pulsed eddy current corrosion detection apparatus as defined in claim 2, wherein: The inside of the first driving motor (8), the second driving motor (14) and the steering motor are all provided with encoders.

4. The high altitude pipeline pulsed eddy current corrosion detection apparatus of claim 1, wherein: The inside of the probe (7) is provided with an excitation coil, a detection coil and a magnetic field shielding part, one side of the probe (7) is provided with a probe wiring port (11).

5. The high altitude pipeline pulsed eddy current corrosion detection apparatus of claim 1, wherein: The battery (9) is electrically connected with the probe wiring port (11), the first driving motor (8), the second driving motor (14), the steering motor and the control module respectively.

6. The high altitude pipeline pulsed eddy current corrosion detection apparatus of claim 1, wherein: The control module is provided with a microprocessor, a power management module, a signal processing module and a wireless communication module, the control module is signal connected with encoders and external terminals, the control module is connected with the probe (7), the first driving motor (8), the second driving motor (14) and the steering motor.

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