RU1806029C - Tube inner surface cleaning device - Google Patents

Abstract

Usage: for cleaning the cavity of pipes made of non-ferromagnetic materials. SUMMARY OF THE INVENTION: A device for cleaning the inner surface of pipes includes a magnetic field source (stator) made of three pairs. The latter have windings and are rigidly fixed to a common magnet-wire; a pole to be placed around the pipe being cleaned so that it can be enveloped externally. The device has a ferromagnetic cleaning agent with abrasive materials, made in the form of a rod and cones fixed at its ends with their bases. Moreover, the diameter of the bases of the bodies is larger than the diameter of the rod, but smaller than the inner diameter of the pipe being cleaned: The abrasive material is made in the form of granules placed between the bases of the cones and the surface of the rod, 2, zp f-ly, Z.il ,. :

Description

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The invention relates to mechanical engineering and can be used in the oil, chemical, gas, processing, dairy and other industries for cleaning the inner surfaces of pipes made of non-ferromagnetic materials (glass, plastic, ceramics, stainless steel, aluminum and its alloys etc.) from difficult to remove pollution.

In order to increase the cleaning efficiency, the ferromagnetic cleaning agent is made in the form of a rod and cones fixed at its ends with the bases of the cones being larger than the diameter of the rod, at least the inner diameter of the pipe being cleaned, and the abrasive material made in the form of granules from a magnet of soft material, freely placed between the bases of the cones and the surface of the rod.

/ In addition, the device further comprises a half: a cylindrical sleeve with a smaller base at the end, while the diameter of the latter is less than the diameter of the pipe being cleaned, but more than the bases of the cones.

The surface of the granules is covered with a layer of material comparable in hardness with the material of the pipeline being cleaned.

Figure 1 shows the device, a General view, a longitudinal section; figure 2 is the same, cross section; in Fig.Z - device before cleaning the pipe, a longitudinal section.

A device for cleaning the inner surfaces of pipes includes (Fig. 1) a housing 1 with covers 2 and 3, a handle 4 for supporting and

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moving the device body along the pipe being cleaned. An electromagnet is placed in the housing, the coil 5 of which is made of a three-winding (Fig. 2), the latter is connected to a three-phase alternating current network (not shown). A processing head is installed inside the housing, made in the form of a cylindrical rod 6 (Fig. 1), at the ends of which cones 7 and 8 are fixed, the diameter of the bases of the cones being larger than the diameter of the cylindrical rod. The rod and cones can be made as one piece, for example, from plastic,

The space between the cylindrical rod 6, the cones 7 and 8 is partially filled with granules 9 of a magnet of soft material. In addition, the device further comprises a hollow sleeve 10 (Fig.Z). one end of which is closed by a cover 11, and the second end is made in the form of an open truncated cone 12, the diameter of the apex of which is smaller than the inner diameter of the pipe 13 being cleaned, but more than the bases of the cones 7 and 8.

The device operates as follows. The pipe to be cleaned 13 (Fig. 1) is installed in such a way that a device housing with a three-winding coil 5 is located on its outer surface, and a processing head (cylindrical rod 6 with cones 7, 8) and granules 9 are placed inside the pipe 13.

When the power is turned on under the action of a rotating magnetic field arising in the tri-winding coil 5, the granules 10 begin to rotate and are pressed against the inner surface of the pipe 13, which is cleaned of dirt, by the action of centrifugal and electromagnetic forces. When moving the housing along the pipe 13 being cleaned, rotating granules 9 move along its inner surface, due to which the entire internal surface of the pipe is cleaned. To remove the separated impurities, a cleaning solution, water or compressed air may be supplied to the pipe 13 both during and after the cleaning process.

At the end of the pipe cleaning, the processing head and granules 9 are withdrawn outside the pipe 13 into the hollow sleeve 10 (Fig. 3), and then the power is turned off. In addition, the floor sleeve 10 serves to facilitate the entry of the Processing head into the pipe 13 to be cleaned.

Cones 7 and 8 are used to limit

the course of the granules 9 within the processing

heads and to direct the flow of detergent

solution, water or compressed air to the inner surface of the pipe.

When cleaning pipes of soft material, for example plastic, or if it is necessary to treat very hard deposits, the surface of granules 9 may be coated with a material comparable in hardness to the surface being treated.

If there is no supply of washing liquid during the cleaning process, the rod 6 with cones 7 and 8 may not be installed. The processing head may also be in the form of a steel cylindrical brush.

Claims (3)

1. Device for cleaning the inner surface of the pipe containing a source a magnetic field (stator) made of three pairs having windings and poles rigidly fixed to a common magnetic circuit to be placed around the pipe being cleaned so that it can be covered from the outside, and ferromagnetic cleaning agent with abrasive material, characterized in that, in order to increase the efficiency of the cleaning process, the ferromagnetic cleaning agent is made in the form of a rod and cones fixed at its ends with their bases, and the diameter of the bases of the cones is larger than the diameter of the rod, but smaller than the inner diameter of the pipe being cleaned, and the abrasive material is made in the form granules of magnetically flexible material freely placed between the bases of the cones and the surface of the rod. 2. The device according to claim 1, with the exception that it further comprises a hollow cylindrical sleeve with a cap placed at one end, the second end of which is made in the shape of a truncated cone with a smaller base at the end, while the diameter of the latter is less than the diameter the pipe being cleaned, but larger than the diameter of the bases of the cones. 3. The device according to claim 1, with the proviso that the surface of the granules is covered with a layer of material comparable in hardness to the material of the pipeline being cleaned: l. : ... Fig. 2