WO2014163536A1 - Dispositif pour diagnostiquer l'état technique de canalisations métalliques - Google Patents

Dispositif pour diagnostiquer l'état technique de canalisations métalliques Download PDF

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Publication number
WO2014163536A1
WO2014163536A1 PCT/RU2014/000227 RU2014000227W WO2014163536A1 WO 2014163536 A1 WO2014163536 A1 WO 2014163536A1 RU 2014000227 W RU2014000227 W RU 2014000227W WO 2014163536 A1 WO2014163536 A1 WO 2014163536A1
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Prior art keywords
magnetic field
output
unit
input
determining
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English (en)
Russian (ru)
Inventor
Валерий Михайлович САКСОН
Андрей Борисович СЕРГЕЕВ
Александр Борисович ПРОКАЗИН
Андрей Евгеньевич КУРАШВИЛИ
Дмитрий Александрович СКОКОВ
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
    • G01N27/87—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields using probes

Definitions

  • the invention relates to the field of non-contact diagnostics and can be used for defectoscopic monitoring of the state (sections of the stress-strain state of the metal of the pipeline, violation of the integrity of the pipeline and insulation coating, etc.) of oil and gas pipelines, as well as other underwater and / or underground metal pipelines .
  • a device for diagnosing a technical condition of a metal pipeline, comprising a system of magnetic field sensors, an analog-to-digital converter (ADC), a frequency generation and division unit, a control unit, a keyboard, a block information display, absolute geographical reference unit, memory unit, accelerometer unit, magnetic field sensor signal amplification unit, analog subtraction unit and magnetic field sensor power supply, while the output of the frequency generation and division unit is connected to the first input of the ADC, the first output of the control unit is connected with the input of the memory unit, the keyboard output is connected to the third input of the control unit, the output of the power supply of the magnetic field sensors is connected to the input of the magnetic field sensor system, the output of which is connected the first input of the magnetic field sensor signal amplification unit, the second ADC input is connected to the first output of the magnetic field sensor signal amplification unit, the output of the analog subtraction unit is connected to the third input of which the second output of the sensor signal amplification unit is connected, the ADC output
  • the disadvantage of this technical solution is the ability to measure only two components of the magnetic field of the pipeline, namely, along the longitudinal axis of the pipeline (Y axis) and along the vertical axis (Z axis). Incomplete picture of the magnetic field causes significant errors in the results of flaw detection.
  • a magnetic flaw detector for monitoring underground metal pipelines without opening the ground, containing the first and second magnetic field transducers, the first magnetic field transducer contains at least two magnetic field sensors that are installed along the axis of the pipeline, the second magnetic field transducer contains at least two magnetic field sensors that are installed along a line perpendicular to the longitudinal axis of the pipeline and the soil surface, a controller with a keyboard, display unit inf formations, first and second amplifiers, analog-to-digital converter (ADC), first and second programmable attenuators, an analog subtraction unit, a power supply for magnetic field converters, an intermediate memory unit, a spatial reference unit, a memory unit and an accelerometer unit, magnetic field converters are located above the ground surface above the pipeline, while the first output of the power supply unit of the magnetic field transducers is connected to the input of the first magnetic field transducer, its second output is connected with the input of the second magnetic field converter, the first output of the second amplifier is connected to the second input of the analog subtraction unit
  • a device for monitoring the state of metal pipelines without opening the ground containing the first and second magnetic field transducers, the first magnetic field transducer contains at least two magnetic field sensors in the form of magnetoresistors, the second magnetic field transducer contains at least two magnetic field sensors in the form of magnetoresistors, sensors magnetic fields of the first and second magnetic field transducers are installed along mutually perpendicular lines, a controller with a keyboard, a unit information display, first and second amplifiers, analog-to-digital converter (ADC), first and second programmable attenuators, analog subtraction unit, stabilized direct current source, intermediate memory unit, spatial reference unit, memory unit and accelerometer unit, magnetic field converters are located above the soil surface above the pipeline, while the first output of the stabilized DC source is connected to the input of the first magnetic field transducer, its second the output is connected to the input of the second magnetic field converter, the first output of the second amplifier is connected to the second input of the analog subtraction unit, the first input of which is connected to the first output of the first amplifier,
  • the device provides magnetic field measurement for flaw detection only along the Y and Z axes. Measurement of the magnetic field by this device along the X axis only provides the location of the flaw detector relative to the longitudinal axis of the pipeline and the generation of a control signal to compensate for the defect deviation from the longitudinal axis of the pipeline.
  • the sensitivity of the measurement channel along the X axis to determine the location of the flaw detector should be ten times lower than the sensitivity of the measurement channels along the Y and Z axes for flaw detection, since with a high sensitivity of the measurement channel along the X axis, the generation of the control signal will affect not only deviations of the flaw detector position from the longitudinal axis of the pipeline, but also pipeline defects, including minor ones.
  • the device allows for flaw detection using magnetic field measurements along only two axes, which introduces significant errors in the determination of field parameters and, accordingly, in the results of flaw detection.
  • a device for diagnosing the technical condition of metal pipelines is described in RU 2453760 C2.
  • the device includes two three-component magnetic field induction sensors, which are located at different levels in height relative to the controlled pipeline.
  • Each of the sensors contains three magnetic field induction meters located along the X, ⁇ , Z coordinate axes, where the X axis is located in the horizontal plane and perpendicular to the longitudinal axis of the pipeline, the Y axis is parallel to the longitudinal axis of the pipeline, the Z axis is perpendicular to the X and Y axes.
  • the device also contains signal amplifiers for meters, an analog-to-digital converter (ADC), a controller, a memory unit, and an information display device.
  • ADC analog-to-digital converter
  • controller a controller
  • memory unit a memory unit
  • information display device As magnetic field sensors, flux gates were used.
  • Each of the sensors is equipped with an analog device for determining the difference in the values of the magnetic field induction.
  • the disadvantages of the prototype are that only scalar quantities are determined - individual components of the magnetic field: along the X, ⁇ , Z axes, as well as the difference values of the same component of the magnetic field, measured at different levels in height relative to the pipeline (three-component sensors 1 and 2).
  • measuring individual components of the magnetic field and determining the difference between the components of the same name does not give enough a complete picture of the magnetic field of the pipeline and, accordingly, reliably identify all fluctuations of the magnetic field and determine their shape, which is necessary for their reliable interpretation (correlation with defects in the pipeline).
  • the difference values of the same component of the magnetic field measured by sensors 3 and 4 are practically zero, since the gradient of the magnetic field induction of the pipeline varies along the radius from its central longitudinal axis .
  • the objective of the present invention is to provide the ability to establish a complete and reliable picture of fluctuations of the magnetic field, including their size and shape.
  • a device for diagnosing the technical condition of metal pipelines containing at least two three-component magnetic field induction sensors located at different levels in height relative to the pipeline, each of which contains three magnetic field induction meters located, respectively, along the X coordinate axes , ⁇ , Z, where the X axis is located in the horizontal plane and perpendicular to the longitudinal axis of the pipeline, the Y axis is parallel to the longitudinal axis of the pipeline, the Z axis rpendikulyarna axes X and Y, and comprising first and second amplifiers, analog-to-digital a converter (ADC), a device for determining the difference in the values of the magnetic field induction along the X, ⁇ , Z axes, a controller, a memory unit and an information display device, while the first, second and third meters of the first three-component sensor are connected, respectively, with the first, second and third the inputs of the first amplifier, the first, second and third meters of the second three-com
  • ADC analog
  • the implementation of the distinguishing features of the invention provides a fundamentally new property of the object (technical result), which consists in providing the ability to determine the complete and reliable picture of fluctuations of the magnetic field, including the magnitude and shape of the fluctuations, because in addition to the individual components of the magnetic field along the X, ⁇ , Z axes and the difference values of the same components (scalar values) are determined by the full vectors of magnetic field induction by each three-component sensor (vector values), the angle between these vectors mi and the difference in the magnitude of the vectors. Changes in the indicated additional factors characterizing the magnetic field make it possible to accurately determine from them the presence and nature of pipeline defects, including those whose diagnostics is impossible only taking into account the magnetic field gradient.
  • FIG. 1 is a block diagram of a device
  • FIG. 2 is a diagram illustrating an arrangement
  • a device for diagnosing the technical condition of metal pipelines 1 contains two three-component magnetic field induction sensors 2.3.
  • the sensors 2,3 are located at different levels in height relative to the pipeline 1, taking into account the measurement of the gradient of its magnetic field, changing in the radial direction.
  • Sensor 2 contains meters 4,5,6, and sensor 3 contains meters 7,8,9 of magnetic field induction.
  • the 4.7 meters are located along the X axes, the 5.8 meters are located on the Y axes, and the 6.9 meters are located on the Z coordinate axes.
  • HONEYWELL NMC 1053 magnetic field induction meters were used as meters 4,5,6,7,8,9.
  • the X-axis is located in the horizontal plane and perpendicular to the longitudinal axis 10 of the pipe 1, the Y-axis is parallel to the 10-axis, and the Z-axis is perpendicular to the X, Y-axes.
  • the device contains the first 1 1 and second 12 amplifiers based on AD8642 microcircuits. As the ADC 13, the KNPS chip 4666512.001 was used.
  • the device for determining the difference in the values of the magnetic field induction along the X, ⁇ , Z axes is made in the form of a block 14 of digital subtraction based on a controller of the Melsek-FSG type.
  • the device for diagnosing the technical condition of metal pipelines also contains a controller 15 based on the KNPS.467441.001 microcircuit, a memory block 16 based on the KNPS.467669.001 microcircuit, an information display device 17, which is an LM4228 liquid crystal monitor, a NIK0.467126.061 type keyboard 18, blocks 19 and 20 determining the magnitude and direction of the full magnetic field induction vectors measured by sensors 2 and 3, respectively, as well as the block 21 for determining the difference and angle between the full magnetic field induction vectors, is measured 2 and 3.
  • the sensor units 19,20,21 are based on Advantech PCM 9370 chips.
  • the first, second and third meters 4,5,6 of the first three-component sensor 2 are connected, respectively, with the first, second and third inputs of the first amplifier 1 1, the first, second and third meters 7,8.9 of the second three-component sensor 3 are connected, respectively, with the first , the second and third inputs of the second amplifier 12, the outputs of the first 11 and second 12 amplifiers are connected, respectively, with the first and second inputs of the ADC 13, the first output of the controller 15 is connected to the memory unit 16, and its second output is connected to the information display device 17.
  • a keyboard 18 is connected to the third input of the controller 15.
  • the first ADC output 13 is connected to the input of the digital subtraction unit 14, the output of which is connected to the first input of the controller 15, the second ADC output 13 is connected to the input of the unit 19 for determining the direction of the full vector of magnetic induction by the first three-component sensor 2, the output of the block 19 is connected to the first input of the unit 21 for determining the difference and angle between the full vectors of the first and second three-component sensors, the third output of the ADC is connected to the input of the unit 20 for determining the full vector of magnetic induction by the second with a three-component sensor, the output of block 20 is connected to the second input of the block 21 for determining the difference and angle between the full magnetic field induction vectors measured by the first and second three component sensors, the output of block 21 is connected to the second input of the controller 15.
  • the device operates as follows.
  • the magnetic field of the metal pipe 1 is perceived by meters 4,5,6 of the first and 7,8,9 of the second three-component sensors 2 and 3 of the magnetic field.
  • the set of meters 4,5,6 allows you to get a picture of the magnetic field at the three coordinates X, ⁇ , Z at a level farther from the pipeline, and the set of meters 7,8,9 allows you to get a picture of the magnetic field of the pipe at a level closer to the pipeline.
  • Magnetic field meters 4,5,6 and 7,8,9 convert the magnetic field of the pipeline into a voltage proportional to the magnitude of the magnetic induction of this field; the voltage is supplied to the amplifiers 1 1 and 12. From the outputs of the amplifiers 1 1, 12, the analog signals are fed to the inputs, respectively, to the first and second inputs of the ADC 13, where they are converted into a digital code, which from the first output of the ADC 13 is fed to the input of the device 14 a digital subtraction to determine the magnetic induction gradient along each separate axis - X, ⁇ , Z. The corresponding signal from the output of the device 14 is fed to the first input of the controller 15.
  • a signal containing information on the values of the magnetic induction measured by the sensor 2 is each component X, ⁇ , Z enters the unit 19 for determining the magnitude and direction of the full vector of magnetic induction measured by the first three-component sensor 2, and from the third output of the ADC 13 a signal containing information about the values of magnetic induction, measured by the sensor 3 for each component X, ⁇ , Z goes to the unit 20 for determining the magnitude and direction of the full magnetic induction vector measured by the second three-component sensor 3.
  • the directions of the vectors are uniquely determined by the ratio of the individual field components along the three axes X, ⁇ , Z. From the outputs unit 19 and unit 20, the signals are fed to the unit 21 for determining the difference and the angle between the full vectors of the magnetic field induction, measured by the first and second three-component sensors 2,3.
  • the input 1 of the controller 15 receives a signal from the digital subtraction unit 14, which determines the difference between the scalar values - the values of magnetic induction, along the X, ⁇ , Z axes at two levels from the pipeline, and the input from the controller 15 receives the signal from the determination unit 21 the difference and the angle between the full magnetic field induction vectors defined at two levels from the pipeline.
  • data are recorded in the memory unit 16 and taken out to the display device information 17.
  • this device determines not only the gradient of the magnetic field induction along the X, ⁇ , Z axes, but also determines the angle between the full vectors at different levels from the pipeline and their difference, it is possible to most fully determine the picture of the magnetic field of the pipeline and, accordingly , the magnitude and shape of the magnetic field fluctuations that are associated with various damages to the pipeline, including those that are not determined only by the gradient of the magnetic field induction.

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Abstract

La présente invention concerne le domaine des instruments de mesure et peut être utilisée pour diagnostiquer l'état technique des canalisations métalliques. Le dispositif comprend au moins deux capteurs à trois composants d'induction de champ magnétique disposés à des niveaux différents en termes de hauteur par rapport à la canalisation, un premier et un deuxième amplificateur, un convertisseur analogique / numérique (CAN), un dispositif pour déterminer la différence des valeurs d'indication du champ magnétique suivant les axes X, Y, Z, un contrôleur, une unité mémoire et un dispositif d'affichage d'informations, une unité de détermination de l'intensité et de la direction du vecteur d'induction complet du champ magnétique, mesuré par le premier capteur à trois composants une unité de détermination de l'intensité et de la direction du vecteur d'induction complet du champ magnétique, mesuré par le deuxième capteur à trois composants, et une unité pour déterminer la différence et l'angle entre les vecteurs complets d'induction de champ magnétique, mesurée par les premier et deuxième capteurs à trois composants. On a pu assurer la possibilité d'établir un tableau complet et réaliste des fluctuations du champ magnétique, y compris leur intensité et leur forme.
PCT/RU2014/000227 2013-04-04 2014-03-31 Dispositif pour diagnostiquer l'état technique de canalisations métalliques Ceased WO2014163536A1 (fr)

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RU2013115581/28A RU2525462C1 (ru) 2013-04-04 2013-04-04 Устройство для диагностики технического состояния металлических трубопроводов
RU2013115581 2013-04-04

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2630856C1 (ru) * 2016-03-27 2017-09-13 Общество С Ограниченной Ответственностью "Феникс" Способ диагностики технического состояния подземных трубопроводов
EP3760965A1 (fr) * 2019-07-01 2021-01-06 Siemens Aktiengesellschaft Détermination de la distance intermédiaire d'un dispositif de mesure sur un conducteur
CN112664840A (zh) * 2020-12-14 2021-04-16 中国石油大学(北京) 一种矢量扫描仪和管道风险确定方法
WO2023049975A1 (fr) 2021-10-01 2023-04-06 Pipeway Engenharia Ltda Équipement pour l'inspection interne de l'intégralité de conduits au moyen de la mémoire magnétique en métal

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RU176494U1 (ru) * 2017-07-13 2018-01-22 Общество с ограниченной ответственностью "Центр Технологий и Инноваций" (ООО "ЦТИ") Магнитный дефектоскоп для диагностики подземных стальных трубопроводов
WO2019013673A1 (fr) * 2017-07-13 2019-01-17 Общество С Ограниченной Ответственностью "Центр Технологий И Инноваций" Détecteur de défectuosités magnétique pour diagnostiquer les pipelines souterrains en acier
RU176447U1 (ru) * 2017-08-15 2018-01-18 Общество с ограниченной ответственностью "Центр Технологий и Инноваций" (ООО "ЦТИ") Магнитный дефектоскоп для контроля подводных переходов трубопроводов
RU2731117C1 (ru) * 2020-03-24 2020-08-28 Общество с ограниченной ответственностью "Строительная компания "ОХА" Устройство для бесконтактной магнитометрической диагностики технического состояния стальных трубопроводов с учетом величины фонового магнитного поля
RU2763963C1 (ru) * 2021-04-07 2022-01-11 Общество с ограниченной ответственностью Инженерный центр "Диагностика" Устройство для диагностики технического состояния металлических трубопроводов
RU209914U1 (ru) * 2021-07-28 2022-03-23 Общество с ограниченной ответственностью «Кибер Скан Технолоджи» Многоэлементный трёхкомпонентный феррозондовый градиентометр с программно-управляемой базой

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2630856C1 (ru) * 2016-03-27 2017-09-13 Общество С Ограниченной Ответственностью "Феникс" Способ диагностики технического состояния подземных трубопроводов
EP3760965A1 (fr) * 2019-07-01 2021-01-06 Siemens Aktiengesellschaft Détermination de la distance intermédiaire d'un dispositif de mesure sur un conducteur
WO2021001145A1 (fr) * 2019-07-01 2021-01-07 Siemens Energy Global GmbH & Co. KG Détermination de la distance moyenne d'un équipement de mesure à un conducteur
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CN112664840A (zh) * 2020-12-14 2021-04-16 中国石油大学(北京) 一种矢量扫描仪和管道风险确定方法
WO2023049975A1 (fr) 2021-10-01 2023-04-06 Pipeway Engenharia Ltda Équipement pour l'inspection interne de l'intégralité de conduits au moyen de la mémoire magnétique en métal

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