UA143780U - X-RAY CONTROL DEVICE - Google Patents

Abstract

The X-ray monitoring device comprises an X-ray machine mounted on a rod. It consists of a retaining permanent magnet with a cylindrical core mounted for 360 ° rotation, a disk with holes is attached to the core, on which a rod consisting of at least one element with an X-ray machine is fixed by means of bolted connections. the core has vertical elements on the hinges.

Description

The useful model belongs to the technique of non-destructive radiation control and can be applied to determine the location of defective areas of structures and parts.

It will be most widely used when detecting defects in welded joints, in particular, main pipelines.

Among the various types of non-destructive control of products existing today, radiation control using X-ray and gamma radiation occupies a significant place.

X-ray scanning of metal structures is the main method of finding internal discontinuities, cracks, leaks, corrosion damage, etc. defects that can cause serious accidents. Both in medicine and in technology, X-ray exposure includes the use of an emitter (H-device, isotope, accelerator, etc.) and intermediate information carriers - detectors of the final information radiation that passed through the investigated object - radiographic films, memory emitting plates with photo-stimulating memory, fluorescent screens, CCD matrixes, etc. (Modern systems of radiation non-destructive testing. V. A. Troitsky, S. R. Mykhaylov, R. O. Pastovensky, D. S. Shilo. -

Zh-l "Technical diagnostics and non-destructive control", 2015. - Mo 1).

This method of controlling the quality of metal is effective in the event that the penetrating radiation has a certain direction of illumination provided by the technological regulations. Most often, this direction is perpendicular to the surface of the object under study. However, there are also other technological standard directions of illumination, for example "on an ellipse", from a certain angle or tangential illumination, i.e. tangential to the surface of the object. The success of tasks solved by this technology depends on the correct direction of illumination. Illumination "on an ellipse", i.e. at a small angle, excludes superimposition of the images of the upper and lower parts of the welds, and "tangential" illumination (tangential to the surface) allows you to determine the final thickness of the pipe wall, the thickness of its insulation and the presence of extraneous bodies Illumination is carried out in different spatial positions.

These examples show that for the radiation method, illumination is of extremely important technological importance. Often, a lot of time is spent on ensuring the correct direction of radiation. In order to illuminate complex objects

Due to its geometric shape, the H-apparatus is strengthened on specially created auxiliary devices.

Thus, the known device for radiographic control of welds is presented in the patent of the Russian Federation

Mo 2216057679 (МПК"7СФ4210 21/02, publ. 10.11.2003). The products to be inspected are placed on the carriage, during the irradiation process they are turned around the axis using a turning mechanism, while the X-ray film is placed on the carriage, and B- the apparatus (x-ray tube) is positioned above the slot of the control table, the width of which is chosen to be sufficient for performing four surveys on one film. The disadvantage of this installation is that it is unsuitable for the control of large-sized objects, structurally complicated, inconvenient to work and requires the use of x-ray film .

In the patent of Ukraine on KM Mo 44094 (МПКУ:СО01М 23/00, publ. 25.09.2009, Byul. Mo 18, 2009) a device for X-ray television control is described, which contains an X-ray radiation source, a radiation converter, a television camera and an information processing unit, connected to a television monitor.

The advantages of this device include the fact that it does not require the use of X-ray film, and it can also irradiate both static and moving products.

The monitored object is irradiated with the help of an X-ray device, as a result of which its shadow image is created, which is transformed into an optical image by an X-ray optical converter, which is transformed into a radio-television video signal with the help of a television transmission camera. The latter with the help of an analog-digital unit is converted into a sequence of frames of the X-ray television image in digital form, which is fed to the input of the computing unit, which generates the output video signal of the X-ray image.

This device has a number of significant disadvantages: firstly, it is not able to provide effective control of the condition of products that have a complex geometric shape. It is too difficult to place the X-ray radiation transducer on bumps, depressions or other hard-to-reach places of the controlled product so that the radiation direction is perpendicular to the surface of the transducer. Because of this, the quality of the image of defects in such problem areas of the product is low and has distortion.

Secondly, the device is stationary and quite bulky, it is not designed to be used in the field (for example, in the construction of pipelines) or to be moved from place to place, as production conditions often require.

The closest analogue is a device for X-ray control, equipped with an X-ray device fixed on a rod (patent of Ukraine Me 111974, MPK: СБ501М 23/00, publ. 25.11.2016, Byul. Mo 22/2016).

The peculiarity of this device is that it uses radiation converters - miniature solid-state elements based on semiconductor structures. With the help of these transducers, you can scan the surface regardless of the configuration, for which they are placed in all recesses and irregularities of the product. In the process of identification, several exposures are performed by one or several converters (depending on the geometry of the investigated surface), the obtained individual shadow images from different angles are subsequently "stitched" in the computer computing unit, according to the developed corresponding program, and visualized on the monitor in the form of a real shadow pictures of the defect.

Analyzing the above information, we can conclude that such a significant advantage of the device, as the possibility of studying complex geometric surfaces, is obtained in a rather complicated and inconvenient way. Obviously, this way may not be acceptable in all production conditions (especially in the field), when it is necessary to examine numerous areas of the product in several spatial positions, and the result must be obtained quickly, in real time and without disassembling the device.

The disadvantages of this device should also include the complexity of its structural construction.

The useful model is based on the task of creating a mobile, convenient to use, capable of illuminating any curved surfaces in any spatial position, device for X-ray control by improving its structural design, in particular by equipping it with a holding permanent magnet, the core of which is capable of rotating on 360", by attaching to it a disc with holes for a sliding rod with a B-apparatus, as well as placing a disc and a rod with a B-apparatus on a separate wheel, as a result of which the possibility of point attachment of the device with a large force of attraction to the surface of the object is ensured, changing direction of illumination at any angle as at

From the manufacture of the product, as well as during its operation, inspection of annular assembly and longitudinal seams of pipelines, trusses of metal structures and structures, which are usually produced by automated, robotic technologies from complex profiles, for example, rectangular pipes.

The task is solved by the fact that the device for X-ray control contains an X-ray device fixed on a rod, according to a useful model, it includes a holding permanent magnet with a cylindrical core, installed with the possibility of turning 360", a disk with holes is attached to the core, on to which a rod consisting of at least one element is bolted to the X-ray machine, the core having vertical members at hinged joints The disk with the rod and the X-ray machine are placed on a separate wheel, and the holding magnet core is equipped with a lever .

The combination of the structural features of the proposed device and the use of a powerful holding magnet in it, the core of which, together with the main working elements, rotates 360" (and, therefore, rotates the B-apparatus 360"), gives the device new operational qualities and makes it indispensable in research objects that have a complex geometry and where it was usually problematic to diagnose the surface for the presence of defects - for example, vessels, elements of trusses of metal structures, bridge decks, on pipes, etc. In addition, the bar with the B-apparatus in the plane of the disc can be deployed 180".

The magnet, with the help of which the device is attached to the surface of the tested product, is made of rare earth metals, has small dimensions, but at the same time, its power is sufficient to hold a weight that is several times greater than the weight of the B-apparatus. This device can be easily manipulated, placing it in hard-to-reach places, and positioned anywhere depending on the location of the examined surface without the risk of its separation from it.

The guarantee of a stable position of the device is also strengthened by the presence of vertical elements hinged on the magnetic core. The hinges provide these elements with a vertical position to the surface of the object, the curvature of which can be of any sign, which, in turn, determines the absence of gaps between the core and the examined surface 60, and, as a result, the force of attraction of the device to the object, which far exceeds the own weight of the B-apparatus. The magnitude of this force is evidenced by the presence of a lever in the design of the device, which is equipped with the core of the holding magnet. It is designed to detach the magnet from the surface of the object under study, obviously, it is extremely problematic to do it manually.

The magnet has a mounting disc with a large number of holes for attaching the rod

B-device. These three elements (magnet, disk and bar with B-apparatus) are easily assembled with a few bolts at the place of illumination. Numerous holes on the disk allow you to change the position of the rod, reaching the most acceptable position, in which the X-ray radiation will precisely fall on the specified area, and its direction will be perpendicular to the plane of the latter.

The versatility of the proposed device is enhanced by the separation of the functions of holding and moving the B-apparatus - the latter, together with the disk on which the B-apparatus is mounted, can be mounted on its own magnetic wheel, with the help of which the point of illumination can move away from or approach the point of attachment. This is also facilitated by the implementation of a sliding rod made of several elements or telescopic - without changing the attachment point of the device, you can position the B-apparatus at the desired distance in the desired direction.

The proposed useful model is demonstrated by the following drawings, which show: in fig. 1 - structural diagram of the device for X-ray control; in fig. 2 - a device in which the disk with the X-ray machine is placed on a separate wheel; in fig. C - a device with a disk with a sliding bar and an X-ray device placed on a separate wheel; in fig. 4 - a schematic representation of the direction of irradiation during the inspection of trusses of metal structures; in fig. 5 - a schematic representation of the direction of irradiation during the examination of a pipe segment with an annular assembly seam.

The device for X-ray control (Fig. 1-3) includes a holding permanent magnet 1 with a U-shaped core (magnetic wire) 2, installed with the possibility of turning 360". A disc C with holes 4 is attached to the core 2, on which, with the help of bolted connections, a rod 5 with an X-ray device b is fixed. The core 2 has vertical elements 7 on hinged joints 8. The design of the rod can be sliding (Fig. 1, 3) or

With telescopic (not shown).

Disc C with rod 5 and X-ray device b can be placed on a separate wheel 9 (Fig. 2, 3). In the device shown in fig. 2, the disk and rod are practically combined in one element. The core of the holding magnet is equipped with a lever 10 (Fig. 2). In fig. 1, 2, position 11 indicates the removable connection of the fastening disc 3 with the round rod of the magnetic conductor 2 of the holding magnet 1. In Fig. 5 letters A, B, C indicate the position of the X-ray apparatus of the device during horizontal illumination (B) of the long ring seam of the pipe.

As shown in fig. 1, the disk of the device can be fixed on the core of the magnetic circuit without the possibility of movement relative to point 11 or, as can be seen from fig. 2 - to have a slot that allows it to move relative to point 11 at an unchanged static position of the device.

The ability to rotate the H-apparatus 360" without disassembling it due to the rotation of the central rod of the magnet wire is important for the survey of trusses of metal structures (Fig. 4), buildings and structures that are usually produced by automated, robotic technologies from complex profiles, such as pipes of rectangular section. Such trusses make up to 50 95 of the mass of modern buildings. They are produced quickly by several robots working simultaneously, with one or two operators. The shaped profile is usually thin-walled, so the slightest errors in the installation of blanks at the beginning of the operation of the robotic system, etc., lead to defects. In addition strictly visual-measuring control, radiation non-destructive control is necessary during operation, since ultrasonic control is almost not used for thin-walled curved surfaces. Such objects must be carefully controlled both during manufacture and checked during operation. This is done with the help of the proposed pr device for illuminating metal structures in different spatial positions.

The operation of the device can be shown on the example of solving an important problem for pipelines of all purposes and different diameters - the transparency of annular assembly seams.

At the beginning of the research, a permanent magnet with a cylindrical central core is installed on the surface of the pipe. Next, a disk with holes and a rod with a B-apparatus are attached to it. In fig. 5 shows a section of pipe with an annular mounting seam, which is to be illuminated. because the device allows you to orient the H-apparatus vertically in relation to the surface of the pipe, both close to the point of its attachment and at a distance. By gradually moving the B-apparatus from position A to position B, illumination is performed through two walls 1807 of the length of the examined seam. Approaching the B-apparatus to the position B, appropriate exposures are made and, together with the translucency in the position B, translucency of half the length of the annular seam is obtained. Along with illumination from position C, 2/3 of the annular seam is irradiated.

The proposed design of the device with a point attachment provides the possibility of illuminating zones in any spatial positions and significantly reduces the auxiliary time associated with the dismantling and installation of the H-apparatus on complex metal structures. This significantly reduces the cost and increases the productivity of radiographic control.

Claims (2)

USEFUL MODEL FORMULA 1. An X-ray inspection device containing an X-ray apparatus mounted on a rod, which is distinguished by the fact that it includes a holding permanent magnet with a cylindrical core, mounted with the possibility of turning 360", to the core is attached a disk with holes, on which for a rod consisting of at least one element is fixed with the X-ray apparatus by means of bolted connections, while the core has vertical elements on hinged joints. 2. The device according to claim 1, which differs in that the disk with the rod and the X-ray apparatus are placed on a separate wheel, and the core of the holding magnet is equipped with a lever. saliva and y y no ee She I | HU uo, Horus; and hi and NE sut: So lay KL and 7 SL; N g p k i i : i o Ve CHI N Y A : ! I Tk K. V: And and! bych, Z shshe z y y Y : y sh ikhtnnnia that teki de Woman in x : N Shok: h schy 7 I ko ek te y and Shy pk Her N v s av ek I I Y Shu Kz spshdh, re y Ba u OK o, Y: N she Z o! ! and here it is! : N ni shih i i Pn i i so sny MEN | and Petr and Kana and B -- Hor Sy ol: shk shi rey ve na shk t shi shneka in ss CD MV: roya son peshny shshe and op M ny nin Yiy scho B ai: Sen, r r pn Shi Sh ryy det (horn. in She b