RU2016114654A - METHOD FOR MAGNETIC DEFECTOSCOPY AND DEVICE FOR ITS IMPLEMENTATION - Google Patents

METHOD FOR MAGNETIC DEFECTOSCOPY AND DEVICE FOR ITS IMPLEMENTATION Download PDF

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Publication number
RU2016114654A
RU2016114654A RU2016114654A RU2016114654A RU2016114654A RU 2016114654 A RU2016114654 A RU 2016114654A RU 2016114654 A RU2016114654 A RU 2016114654A RU 2016114654 A RU2016114654 A RU 2016114654A RU 2016114654 A RU2016114654 A RU 2016114654A
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RU
Russia
Prior art keywords
magnetization
main
pipeline
directions
ring
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RU2016114654A
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Russian (ru)
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RU2634366C2 (en
Inventor
Василий Васильевич Сухоруков
Константин Викторович Мякушев
Сергей Борисович Белицкий
Вячеслав Викторович Костиков
Алексей Алексеевич Абакумов
Федор Васильевич Носов
Геннадий Львович Максимов
Original Assignee
Общество с ограниченной ответственностью "Интрон Плюс"
Публичное акционерное общество "Газпром нефть"
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Priority to RU2016114654A priority Critical patent/RU2634366C2/en
Publication of RU2016114654A publication Critical patent/RU2016114654A/en
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Publication of RU2634366C2 publication Critical patent/RU2634366C2/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws

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  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Claims (2)

1. Способ магнитной дефектоскопии стальных трубопроводов со стороны внутренней поверхности, заключающийся в том, что перемещают вдоль внутренней поверхности трубопровода двухполюсную систему намагничивания, обеспечивающую осевое намагничивание до технического насыщения участка трубопровода между ее полюсами, регистрируют с помощью магниточувствительных элементов сигналы, пропорциональные индукции магнитных потоков рассеяния над внутренней поверхностью трубопровода, и по совокупности полученных сигналов судят о наличии и параметрах дефектов сплошности металла в стенке трубопровода, отличающийся тем, что, одновременно, с помощью двух дополнительных двухполюсных систем намагничивания намагничивают в осевых направлениях, встречных к направлениям намагничивания основной системой намагничивания, два участка трубопровода, расположенные с осевым зазором с разных сторон относительно участка, намагничиваемого основной системой намагничивания.1. The method of magnetic flaw detection of steel pipelines from the side of the inner surface, which consists in moving along the inner surface of the pipeline a two-pole magnetization system that provides axial magnetization until the pipe section is technically saturated between its poles, signals proportional to the magnetic flux density induction are recorded using magnetically sensitive elements over the inner surface of the pipeline, and the totality of the received signals judges the presence and param defects of metal continuity in the pipe wall, characterized in that, simultaneously, using two additional bipolar magnetization systems magnetize in the axial directions opposite to the magnetization directions by the main magnetization system, two sections of the pipeline located with an axial clearance from different sides relative to the magnetized section main magnetization system. 2. Устройство для магнитной дефектоскопии стальных трубопроводов со стороны внутренней поверхности в виде внутритрубного снаряда-дефектоскопа, выполненного с возможностью перемещения вдоль контролируемого трубопровода и содержащего основную двухполюсную систему намагничивания в виде двух радиально намагниченных в противоположных направлениях кольцевых постоянных магнитов, соединенных между собой цилиндрическим магнитопроводом, установленный между кольцевыми магнитами многоэлементный кольцевой измерительный преобразователь с равномерно распределенными по периметру кольца магниточувствительными элементами и герметичный электронный блок, электрически соединенный с измерительным преобразователем, отличающееся тем, что оно снабжено двумя дополнительными двухполюсными системами намагничивания, установленными с осевым зазором по разные стороны относительно основной системы намагничивания, каждая из дополнительных систем намагничивания выполнена в виде двух радиально намагниченных в противоположных направлениях кольцевых постоянных магнитов, соединенных между собой цилиндрическим магнитопроводом, а направления намагничивания соседних кольцевых постоянных магнитов основной и дополнительных систем намагничивания совпадают.2. A device for magnetic flaw detection of steel pipelines from the side of the inner surface in the form of an in-tube projectile-flaw detector made with the possibility of moving along the controlled pipeline and containing the main bipolar magnetization system in the form of two ring permanent magnets radially magnetized in opposite directions, connected by a cylindrical magnetic circuit, a multi-element ring measuring transducer installed between ring magnets with magnetically sensitive elements uniformly distributed around the perimeter of the ring and a sealed electronic unit electrically connected to the measuring transducer, characterized in that it is equipped with two additional bipolar magnetization systems installed with an axial clearance on different sides relative to the main magnetization system, each of the additional magnetization systems is made in the form two radially magnetized in opposite directions of annular permanent magnets connected x between a cylindrical magnetic core, and magnetization directions of adjacent annular permanent magnet magnetizing main and additional systems coincide.
RU2016114654A 2016-04-14 2016-04-14 Method for magnetic flaw detection and device for its implementation RU2634366C2 (en)

Priority Applications (1)

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RU2016114654A RU2634366C2 (en) 2016-04-14 2016-04-14 Method for magnetic flaw detection and device for its implementation

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RU2016114654A true RU2016114654A (en) 2017-10-19
RU2634366C2 RU2634366C2 (en) 2017-10-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108828056A (en) * 2018-06-21 2018-11-16 中国矿业大学(北京) The detection device of wirerope

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2745013C1 (en) * 2020-04-23 2021-03-18 Общество с ограниченной ответственностью «ИЛИНЭТ» Non-contact longitudinal magnetizing device for in-pipe defectoscopy of pipelines

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2133032C1 (en) * 1997-03-20 1999-07-10 Закрытое акционерное общество Инженерный центр "ВНИИСТ-ПОИСК" Process of magnetic field testing and device to implement it
US6404189B2 (en) * 1999-03-17 2002-06-11 Southeast Research Institute Method and apparatus for inspecting pipelines from an in-line inspection vehicle using magnetostrictive probes
RU2176081C1 (en) * 2000-12-26 2001-11-20 ЗАО "Нефтегазкомплектсервис" Magnetic going-through flaw detector
RU117186U1 (en) * 2012-02-09 2012-06-20 Закрытое акционерное общество Научно-производственное объединение "Спектр" MULTI-SECTION IN-TUBE MAGNETIC DEFECTOSCOPE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108828056A (en) * 2018-06-21 2018-11-16 中国矿业大学(北京) The detection device of wirerope

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Effective date: 20181228