WO2006025762A1

WO2006025762A1 - Device for magnetically treating fluids

Info

Publication number: WO2006025762A1
Application number: PCT/RU2005/000411
Authority: WO
Inventors: Viktor Ivanovich Lesin
Original assignee: Obschestvo S Ogranichennoy Otvetstvennostyu 'lesin I K'
Priority date: 2004-08-30
Filing date: 2005-08-10
Publication date: 2006-03-09
Also published as: RU2004126204A

Abstract

The invention relates to the structural design of devices for magnetically activating fluid media, in particular crude oil or water and can be used for preventing complex organic and mineral deposits on ground and underground facilities, for destroying emulsions and for reducing a fluid corrosion activity . The inventive device is embodied in such a way that it is possible to mount a pipeline for a treatable fluid inside the device or outside thereof and comprises a sealed body provided with an internal through opening embodied in the form of coaxial cylinders which have different diameters and whose end faces are closed by plugs. Each permanent magnet and magnetic circuit is supported by said sealed body and is embodied in the form of a sector whose opening angle ranges from 90 to 120°, external arc diameter is equal to the diameter of the external tube of the body and whose internal arc diameter is equal to the external diameter of the internal tube thereof. Permanent magnets are arranged in pairs, diametrically oppositely to the longitudinal axis of symmetry of the sealed body and symmetrically on both sides of the magnetic circuits along the longitudinal axis of symmetry of the body. The permanents magnets of each pair have opposite direction of magnetisation and rest upon the body surface by the opposite poles thereof. The permanent magnets of different pairs are disposed on opposite sides of the magnetic circuits but on one side with respect to the longitudinal axis of the sealed body and rest upon the surface thereof by the analogous poles.

Description

Device for magnetic fluid processing.

(i) Technical Field

The invention relates to the oil industry, relates to structural features of the device for the magnetic activation of liquid media, in particular crude oil or water, and can be used to prevent complex organic and mineral deposits on ground and underground equipment, to break emulsions, and also to reduce corrosion activity of the treated fluid.

(ii) Prior Art.

From the application WO95 / 11198 Al, C 02 F 1/48, E 21 B 37/00, 04/27/1995, a device for magnetic fluid treatment is known for installation on a surface of a liquid pipe and comprising a sealed non-magnetic housing in which permanent magnets are placed inducing an axial magnetic field, and the magnetic cores are essentially absent. However, this device is not intended for its installation inside the pipeline for the processed fluid. From patent

RU2098604 Cl, E 21 В 37/00, С 02 F 1/48, 12/26/95 a device for magnetic processing of liquid media is known, comprising a cylindrical body, along the axis of symmetry of which there are installed radially magnetized ring permanent magnets that create a magnetic field, the direction of magnetic force whose lines are perpendicular to the direction of movement of the processed fluid through the pipeline. However, in this device, the passage opening for the fluid to be treated is significantly narrowed, and the internal passage hole is absent, which excludes the possibility of installing the device outside (outside) of the pipeline for the treated fluid.

From patent RU Ш 2085507 Cl, C02 Fl / 48, 07.27.1997, a device for magnetic fluid treatment is known that contains a ferromagnetic pipe and composite ring permanent magnets having radial magnetization that are covered by a sealed ferromagnetic screen in pairs mounted on its outer surface. In this case, pairs of ring permanent magnets are installed along the length of the ferromagnetic pipe at a distance not less than three times the width of one ring magnet, and the main surfaces of each of them last are conjugated with the outer surface of the ferromagnetic pipe.

A significant drawback of this device is the absence of the action of the Lorentz force on the electrically charged components of the processed fluid, since the directions of its movement and the axial magnetic field lines are parallel. In addition, the scope of this device is limited, since it is not possible to install it inside the pipeline for the liquid to be treated.

From the patent RU JY ° 2127708 Cl, C02 Fl / 48, 03/20/1999 a device for magnetic fluid processing is known, adopted as a prototype, containing a ferromagnetic pipe and installed on its outer surface radially magnetized, annular permanent magnets detachable along the axis, from one end of each of which, without a gap, additional ferromagnetic rings are installed, at In this case, the axis of the ferromagnetic pipe faces the same poles of the same name of the ring permanent magnets, and their outer poles are shunted by ferromagnetic plates, which are installed uniformly without a gap on the outer surface of the ring permanent magnets. This device has the simplicity of its installation and dismantling without stopping the process in hard-to-reach conditions.

The magnetic fields generated by this device are directed mainly parallel to the direction of movement of the processed fluid through the pipeline. In this case, however, significant disadvantages of this device are the impossibility of installing the device inside the pipeline, as well as the incomplete use of magnetic fluxes of permanent magnets, since magnetic cores are adjacent to the permanent magnets from their ends. This arrangement of the magnetic cores leads to a gradual change in the direction of magnetization of the magnets and loss of operability of the device.

(iii) Disclosure of the invention

The technical result to which the present invention is directed is to increase the processing efficiency of moving liquid media, as well as to increase the service life of the proposed device while expanding the scope of its use.

This technical result is achieved by the fact that the proposed device for magnetic processing of moving fluid, containing a sealed enclosure in which radially magnetized permanent magnets and magnetic cores are installed, according to this invention, can be located both inside and outside (outside) of the pipeline for the liquid to be treated, while the sealed housing is made with an internal bore in the form of two coaxial cylinders of different diameters, end caps are installed , each permanent magnet and magnetic circuit is supported by a sealed housing and is made in the form of a sector with an opening angle of 90 ° -120 °, with the diameter of the external arc equal to the internal diameter the outer cylinder of the sealed housing, and with the diameter of the inner arc equal to the outer diameter of the inner cylinder of the sealed housing, while the permanent magnets are arranged in pairs diametrically opposite to the longitudinal axis of symmetry of the sealed housing, and also symmetrically on both sides of the magnetic circuits along the longitudinal axis of symmetry of the sealed housing, the magnets of each pair have a counter direction of magnetization and rely on the surface of the sealed enclosure with poles of the opposite polar spine, and different pairs of permanent magnets arranged on opposite sides of the magnetic circuit, but at one side of the longitudinal axis of symmetry of the hermetic housing, supported on the surface of same polarity poles.

Moreover, according to the invention, the sizes Ll of each of the permanent magnets, L2 of each of the magnetic cores and the distance L3 between them along the longitudinal axis of symmetry of the sealed enclosure correspond to the following relationships:

Ll = (1 - 0.7) Dl; L2 = (0.3 - 0.5) Dl;

L3 = (1 - 0.7) Dl

under the condition D2 - Dl = (2 - 0.5) cm,

where: Dl is the inner diameter of the inner pipe, m .;

D2 - outer diameter of the outer pipe, m.

The inner and outer cylinders of the sealed housing can be made in the form of pipe segments of circular cross-section made of ferromagnetic, or diamagnetic, or paramagnetic material, in particular steel and alloys.

In addition, the device can be provided with centering supports for installing it inside the pipeline for the fluid to be treated coaxially, while the outer and inner surfaces of the cylinders of the sealed housing must be coated with non-ferromagnetic materials, and the outer diameter D2 of the outer cylinder of the sealed housing is connected with the inner diameter D3 of the pipeline for the treated fluid with the ratio:

0 <DЗ - D2 <(1/2 DЗ)

The device can also be made with the possibility of installing outside (outside) the pipeline for the fluid to be processed, while the inner diameter Dl of the inner cylinder of the sealed housing coincides with the outer diameter D4 of the pipeline for the processed fluid, and the cylinders of the sealed housing are made of ferromagnetic materials, or as an inner cylinder sealed housing can be used piping for the processed fluid. In addition, according to this invention, the free space in a sealed enclosure can be filled with a substance, for example, cement stone, which provides the necessary stability of the device structure to deformation and additional protection of permanent magnets and magnetic circuits from environmental influences.

(iv) An example embodiment of the invention

The invention is illustrated by drawings, where in Fig. L shows a longitudinal section of the proposed device, in Fig. 2 is a cross-section of the device, in Fig. 3 is a possible placement of the device inside the pipeline for the liquid to be treated, in Fig. 4 is a possible placement of the device outside (outside) the pipeline for the fluid to be treated.

A device for magnetic processing of liquid contains a sealed housing 1, consisting of two coaxial cylinders, in particular from pipe segments of different diameters, at the ends of which plugs are installed (not shown in the drawings), as well as radially magnetized permanent magnets 2 and magnetic cores located in the sealed housing 1 3.

Permanent magnets 2 and magnetic cores 3 are made in the form of sectors with opening angles of 90 -120 °

The recommended number of permanent magnets in the device is in the range of 8-18 pieces.

The device may be provided with centering supports 4. The free space in the sealed enclosure of the device may be filled with a substance that provides the necessary stability of the structure to deformation and protection of permanent magnets and magnetic circuits from external influences, for example, cement stone.

The cylinders of the sealed housing 1 can be made of ferromagnetic, diamagnetic and paramagnetic materials, for example, steels and alloys. The choice of cylinder material is determined by the location of the device outside (outside) or inside the pipeline with the processed fluid.

The dimensions of the permanent magnets and magnetic circuits along the longitudinal axis of symmetry of the sealed enclosure are selected from the above relationships: Ll = (1-0.7) Dl;

L2 = (0.3-0.5) Dl;

L3 = (1-0.7) Dl,

provided D2-D1 = (2-0.5) cm,

where Dl is the inner diameter of the inner pipe, m;

D2 - outer diameter of the outer pipe, m

When placing the device inside the pipeline, it is installed on the centering supports 4 coaxially to the pipeline for the fluid to be treated. In this case, it is permissible that the external diameter of the casing DЗ of the device and the internal diameter of the pipeline D4 are within:

0 <D4 - DЗ <(l / 2 DЗ) The external and internal surfaces of the cylinders of the sealed housing 1 of the device should be made of non-ferromagnetic materials (Fig.Z).

When placing the device outside the pipeline for the fluid to be treated, the inner diameter Dl of the inner cylinder of the sealed housing coincides with the outer diameter D4 of the pipeline for the processed fluid, that is, D1 = D4, and the cylinders of the sealed housing must be made of ferromagnetic materials, or as the inner cylinder of the sealed housing of the device used pipeline for the processed fluid (figure 4).

In the presented drawings (Figs. 2, 3 and 4), continuous closed lines with arrows show the directions of the magnetic field lines with various installation methods

The proposed device for magnetic processing of liquid provides exposure to the liquid in the entire region of its flow along this device with strong (up to 1-1.5 T) magnetic fields that do not have axial symmetry, perpendicular to the direction of movement of the processed liquid, periodically change their direction to the opposite and have high gradients not only in the direction of flow, but also perpendicular to it. This eliminates the relaxation processes that occur after the termination of the magnetic field, leading, as you know, to reduce the effect of magnetic treatment. In this case, the processed fluid located in the location zone magnetic device, is constantly exposed to a variable in amplitude and gradient of the magnetic field, and the charged particles of the fluid are constantly exposed to the Lorentz force, since the direction of fluid motion is perpendicular to the magnetic field created by the permanent magnets of the installation. Due to the presence of magnetic cores made of ferromagnetic materials with a high coefficient of magnetic permeability and located between the permanent magnets at a certain distance, the magnetic field in the pipeline for the fluid to be processed between the diametrically located magnetic cores in the casing has a high tension close to the field strength in the pipeline between the diametrically arranged permanent magnets . The combination of these physical factors allows for more efficient magnetic processing of a mixture of oil and water, as well as gas.

The possibility of placing the proposed device inside or outside (outside) the pipeline allows you to more fully use the magnetic flux of permanent magnets due to the fact that the walls of the pipeline serve as magnetic cores. With the proposed arrangement of magnetic cores and permanent magnets, magnetization reversal of the latter is excluded.

In addition, the possibility of arranging the proposed device both inside and outside (outside) the pipeline for the fluid being treated expands the conditions for its use when there are technological limitations for the external or internal diameter of the pipeline. Due to the presence of an internal bore in the device, significant hydrodynamic resistance, while the energy of the magnetic field induced by permanent magnets in the device of the proposed design is used more fully.

Claims

Claim

1. A device for magnetic fluid treatment, comprising a sealed housing in which radially magnetized permanent magnets and magnetic circuits are installed, characterized in that it is arranged to be arranged inside or outside the pipeline for the liquid to be treated, the sealed housing is made with an internal bore in the form of coaxial cylinders of different diameters, at the ends of which plugs are installed, each permanent magnet and each magnetic circuit is supported by a sealed housing and is made in the form of a vector with an opening angle of 90 ° - 120 °, with the diameter of the external arc equal to the inner diameter of the outer pipe of the sealed enclosure, and with the diameter of the internal arc equal to the outer diameter of the inner pipe of the sealed enclosure, while the permanent magnets are arranged in pairs and diametrically opposite to the longitudinal axis of symmetry of the sealed housing, as well as symmetrically on both sides of the magnetic circuits along the longitudinal axis of symmetry of the sealed housing, the permanent magnets of each pair have a counter magnetization direction and irayutsya the surface of the hermetic housing of the opposite polarity poles, and the permanent magnets of different pairs arranged on opposite sides of the magnetic circuit, but at one side of the longitudinal axis of the hermetic housing, supported on the surface of same polarity poles.

2. The device according to claim 1, characterized in that the size Ll of each of the permanent magnets, the size L2 of each of the magnetic cores and the distance L3 between the permanent magnets and the magnetic cores of the longitudinal axis of symmetry of the sealed housing are selected based on the diameters of its inner and outer cylinders, according to the following ratios:

Ll = (1 - 0.7) Dl;

L2 = (O, 3 - O, 5) D1;

L3 = (l - OJ) Dl,

subject to (D2-D1) = (2 - 0.5) cm,

where Dl is the inner diameter of the inner cylinder, m;

D2 - outer diameter of the outer cylinder, m

3. The device according to p. L or p. 2, characterized in that the inner and outer cylinders of the sealed housing are made in the form of pipe segments of circular cross-section from ferromagnetic, or from diamagnetic, or from paramagnetic materials, in particular, from steels and alloys.

4. The device according to claim 3, characterized in that it is provided with centering supports for installation coaxially inside the pipeline for the fluid to be treated, while the outer and inner surfaces of the cylinders of the sealed casing are coated with non-ferromagnetic materials, and the outer diameter D2 of the outer cylinder of the sealed casing is connected with the inner diameter D3 of the pipeline for the liquid being treated by the ratio:

0 <DЗ - D2 <(l / 2 DЗ)

5. The device according to p. 3, characterized in that it is arranged to be installed outside the pipeline for the fluid to be treated, the inner diameter Dl of the inner cylinder of the sealed housing coincides with the outer diameter D4 of the pipeline for the processed fluid, and the cylinders of the sealed housing are made of ferromagnetic materials, or as the inner cylinder of the sealed enclosure, a pipeline for the fluid to be treated is used.

6. The device according to any one of claims 1 to 5, characterized in that the free space in the sealed enclosure is filled with a substance that provides the necessary structural stability to deformation and additional protection of permanent magnets and magnetic circuits from the effects of the external environment, in particular, cement stone.