RU29375U1 - Device for diagnosing defects in steel tanks - Google Patents

Abstract

A device for diagnosing defects in steel tanks, comprising a ferromagnetic powder located in an oil suspension, characterized in that optimized size ferromagnetic particles (particle diameter 10-20 μm) are used as a magnetic powder, a stabilizer, a surfactant, is introduced into the suspension, for example, oleic acid, which prevents the formation of aggregates as a result of the residual magnetization of ferromagnetic particles, the suspension is placed in an airtight frame convenient for the process and diagnosing the area, and the screen of the frame facing the controller is made of transparent material, and the screen facing the diagnosed surface is made of white elastic film with a thickness of not more than 0.08 mm, and the distance between the external and internal screens of the frame is 2-3 mm .

Description

 STROIS TVO for LIAT NOSTNOSTING DEFECTS IN STEEL TANKS

The preceding unclear chapel belongs to and: measuring technique, in part to the means of lipnosygizing the state of metal in steel tanks and can be applied in the oil industry to diagnose defects in the metal of steel tanks.

M; shesp10 device of the day of defects in the metal of the tanks and tanks -i. containing a primary transducer of the NL1ol11amnemometer magnetometer imelmer or gradiometer), which registers the mappin scattering field arising at the location of a found defect of the surface and subsurface cracks, coriHOMHbse caverns etc.), The disadvantages of this device are the complexity of the equipment and the comparative low costs for it, the relative complexity of the internation of the diagnostic results, low control subunit in the case of a non-stranded orientation of the magnetometer due to the o l up y e m o and p about in er x n about s and.

A known method for diagnosing the state of metal of steel tanks; . the essence of which is the use of magnetic powder in suspension oil. When a suspension is applied to a pre-magnetized controlled surface of the location of the defects, they become VISUALLY visible as a result of an increase in the density of magnetic particles under the influence of the scattering magnetic field created by the defects.

Of course, some of the methods are high races, the course of materials is e, for carrying out the diagonalization of the 6th surface area. neocentric with periodic irregular suspension (g. the laboriousness of wonderful work. oiHOCHiejibHO ngikaya dos1ovsprnos1 control yz-za

.

the complexity of the misery of Msinigna spruce from the particles-amn of the antimmiliated n with its pain at its expense.

The proposed field model solves the problem of reducing costs. The HI process is ligno-driven. Reduced pauof preparatory labor. increase control overhaul.

Repgenpo by decree;: 1 day) x heme1 And heme. which is used as a magnetic powder, not in%.%: ferromagnetic particles of optimized particle size are used; particle diameter is K 2) μm): stabilization of a highly active substance, for example, oleic acid, is introduced into the suspension, which prevents the formation of associations in the result of residual magnetization of ferromagnetic particles: the suspension is placed in an airtight) frame convenient for the process of diagnosing the area, and the screen is frame. facing the controller, executed and. 1 transparent material. l tap. ov) paoicHHbiH to the diagnosed one also does not ache - from an elastic film ov.aofo of a color no more than 0.08 mm thick., and the distance between the external and the inside fats of the frame is 2-3 of them.

These signs are essential for solving the tasks of the nose model, since the re.v.ibTai and the fact that the device is multi-use, as a result, they reduce the hydrate for the diagnosis process. - the laboriousness of preparatory work is reduced, due to the optimal size of ferromagnetic particles, the reliability of defect detection is increased.

The usefulness of the utility model is illustrated by the drawing (Fig. IK on which the vcrpoiiCTBa circuit is shown.

The device contains internal 1 and external 2 screens, which are located at a certain distance from each other (2-3 mm) and are connected perimeter through Mespv. o (ligating an internal cavity filled with a mini-powder suspension .., including a wt.cake BASIS, stabilization 0 {w of a ferromaipa powder, having a diameter

This device operates as follows o6ra.zoi. When a rim is imposed on the preliminarily magnetized by the known methods 2 congrolprueuk, the surface of the steel peiepsyapa, the inner screen 1 is tightly adhered to: affects the ferromagnet particles in suspension 3. in this case, the density of the mabs in the defect matrix will increase, making the defect visually visible through a transparent external craton1 2.

Thus, the proposed utility model solves the problem of reducing the cost of the diagnosis process, reducing the complexity and preparatory work. will increase the reliability of control.

I State diagnostic tools. Directory. Ed. li. Kshoena. M “Mash foreign construction. 1989 672s.

.. Quality control of mechanical engineering products. Tutorial e.} BiiCM. Edited by L.E. Apieca. M .: "Publishing house of standards. 1974

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LITERATURE

V. Saveliev F.V. Belokhvostov I.I. Ershov

.IN. Molchanov / - G.P. Inkov - M.M. Malafeev

Claims (1)

A device for diagnosing defects in steel tanks, comprising a ferromagnetic powder located in an oil suspension, characterized in that optimized size ferromagnetic particles (particle diameter 10-20 μm) are used as a magnetic powder, a stabilizer, a surfactant, is introduced into the suspension, for example, oleic acid, which prevents the formation of aggregates as a result of the residual magnetization of ferromagnetic particles, the suspension is placed in an airtight frame convenient for the process and diagnosing the area, and the screen of the frame facing the controller is made of transparent material, and the screen facing the diagnosed surface is made of white elastic film with a thickness of not more than 0.08 mm, and the distance between the external and internal screens of the frame is 2-3 mm .