SU624211A1

SU624211A1 - Device for monitoring object motion in pipeline

Info

Publication number: SU624211A1
Application number: SU762433918A
Authority: SU
Inventors: Александр Александрович Чернышев; Александр Александрович Орешков
Original assignee: Специальное Конструкторское Бюро Всесоюзного Научно-Производственного Объединения "Союзгазавтоматика"
Priority date: 1976-12-24
Filing date: 1976-12-24
Publication date: 1978-09-15

Description

Изобретение касаетс управлени и контрол положени движущегос в трубопроводе объекта, нагфимер дефектоскопа.The invention relates to the control and monitoring of the position of a moving object in a pipeline, a flaw detector nagfimer.

Известны устройства, служащие дл передачи команд через стенку трубопровода с помощью переменного пол ij. Недостатком таких устройств вл етс невысока надежность.Devices are known that serve to transmit commands through a pipe wall using an alternating field ij. The disadvantage of such devices is low reliability.

Наиболее близким техническим решением к данному изобретению вл етс устройство дл контрол движущегос внутри трубопровода объекта, содержащее установленный на поверхности трубопровода электромагнитный П-образный индуктор и закрепленный на оси движущегос объекта электромагнитный датчик 2}.The closest technical solution to this invention is a device for monitoring an object moving inside a pipeline, which contains an electromagnetic U-shaped inductor mounted on the surface of the pipeline and an electromagnetic sensor 2} mounted on the axis of the moving object.

Практика работы с объектам , движущимис внутри трубопровода, показывает, что их движение происходит с одновременным винтообразным вращением вокруг про дольной оси. В силу этогх) известное устройство дл контрол положени движущегос объекта не обладает достаточной надежностью и дл ее обеспечени при повороте объекта на любой угол пришлось The practice of working with objects moving inside the pipeline shows that their movement occurs with simultaneous helical rotation around the longitudinal axis. By virtue of this), the known device for controlling the position of a moving object does not have sufficient reliability and to ensure it when turning the object at any angle

бы электромагнитный индуктор выполнить кольцеобразным. При этом размеры и вес электромагнитного индуктора дл труб больших диаметров (ТОО-14ООмм1и лее) сделали бы невозможным его практическое использование.would make an electromagnetic inductor ring-shaped. At the same time, the size and weight of an electromagnetic inductor for pipes of large diameters (TOO-14OOM1 and more) would have made its practical use impossible.

Целью изобретени вл етс повышение надежности работы устройства.The aim of the invention is to improve the reliability of the device.

Это достигаетс тем, что в предлагаемом устройстве датчик выполнен в виде группы последовательно включенных катушек индуктивности с разомкнутыми магнитопроводами ,. которые расположены концентрично внутренней поверхности трубопровода на рассто ни х, не превышающих ширины полюсов П-образного индуктора.This is achieved by the fact that in the proposed device the sensor is made as a group of series-connected inductors with open-circuited magnetic conductors,. which are located concentrically to the inner surface of the pipeline at distances not exceeding the width of the poles of the U-shaped inductor.

На фиг. 1 и 2 показано схематическое изображение устройства.FIG. 1 and 2 show a schematic representation of the device.

Claims

The device contains an electromagnetic inductor 1, powered by alternating current and located on the surface of the pipeline 2, and the sensor, made in the form of a group of inductors 3 with open magnetic circuits, aggravated on the axis 4 of the moving object 5 The device operates as follows. When moving the two-object 5 inside the pipeline 2, the coils 3 of the sensor fall into the alternating magnetic field created by sneKTpoMarHHtHbiM inductor 1, and an induction emf occurs in them, which is a control signal that is transmitted to the actuators of the moving object 5. At the same time, the number of Element of the moving object ( coils 3) is such that in a magnetic field of an electromagnetic inductor 1 there will always be at least one of the sensor elements, regardless of the angle of rotation of the moving object around the axis of the pipeline 2, Constructive The output of the sensor in the form of a group of elements (coils) concentrically located relative to the internal surface of the pipeline will create a reliable and convenient in operation design. Reliable operation of the device is achieved by receiving signals regardless of the rotation of a moving object around the axis of movement, f 114 Such an embodiment of the sensor can significantly reduce the weight of the electromagnetic inductor and ensure ease of operation of the entire device in the circuit. Claims of the Invention A device for controlling an object moving inside a pipeline, containing an electromagnetic U-shaped inductor mounted on the surface of a pipeline and fixed on an axis of a moving object an electromagnetic sensor, so as to increase the reliability of the device, it has a sensor; made as a group of sequentially inserted coils of inductance with open magnetic conductors, which are located con ventionally to the inner surface of the pipeline at distances x not exceeding the width of the poles of the U-shaped inductor. 2172687, cl. F 17 ±) 3/04, J.974.

2. USSR author's certificate number 198988, cl. 65 Q 47/24, 1969.