RU36272U1 - Device for cleaning the inner surface of pipelines - Google Patents

Description

Device for cleaning viutraine surface of pipelines

The utility model relates to the cleaning of hollow products and is intended for cleaning from deposits of the inner surface of pipes of water, heat, road networks, reclamation systems.

A device for cleaning the inner surface of pipelines, containing located on the rotary housing uniformly around the circumference of the cleaning tools mounted on the shanks with the possibility of rotation relative to them, each of which consists of a base made in the shape of a cone and working elements made in the form of spikes mounted rigidly on the lateral outer surface of the cone, jet nozzles for providing axial movement installed in the bases of the cones, jet nozzles for providing rotation movement of cleaning tools installed in spikes, means for supplying working fluid to the jet nozzles, wheels mounted on the housing at the free ends of the shanks with the possibility of rotation (AS USSR No. 1215768 A, MPK7 V08V 9/04, 07.03.1986).

A device is known for cleaning the inner surface of a pipeline, comprising a housing on which cleaning elements with an axial and rotational movement mechanism are mounted, made in the form of longitudinal conveying blades, at the end of which there are multi-toothed shares, ripper blades are installed in the lower part of the body (RF patent No. 2028839 C1, MPK7 V08V 9/04, 02.20.1995).

A device for cleaning the inner surface of pipelines, including a housing with a cleaning element in the form of a gear made with the possibility of rolling on the inner surface of the pipe, while the teeth are located on the rim of the wheel

 Irda

 - V08V9 / 04

spirals with the formation of a protrusion (utility model of the Russian Federation No. 25855 U1, 10.27.2002). The device is equipped with two jet-forming cuffs. This device can be taken as a prototype of the claimed invention.

The main disadvantage of the above devices is that they all provide a small contact area of the cleaning elements with the surface of the processed pipe, which negatively affects the quality and productivity of cleaning. In addition, all the above devices are complex in design, have many mechanically interconnected parts, which leads to a decrease in the reliability of the devices.

The objective of the utility model is to simplify the design of the device for cleaning the pipe cavity while increasing productivity and processing quality by increasing the contact area of the cleaning agent with the pipe surface.

This problem is solved due to the fact that in the device for cleaning the inner surface of the pipeline containing the casing with cleaning agents installed on it, the casing is made in the form of an elastic cylindrical shell, and the cleaning means is made in the form of many teeth placed at an angle to the surface of the casing, while the direction of inclination of the teeth coincides with the direction of movement of the device during the cleaning process. The elastic cylindrical shell of the body can be made of rubber-cord material, and the teeth of the cleaning agent can be fixed by vulcanization directly on its surface. The device may include a cover made of an elastic material, for example, cord-reinforced rubber, placed on the elastic shell of the case, and the teeth of the cleaning agent can be attached to textile tapes mounted by vulcanization in its surface. The teeth of the cleaning agent may be

fixed by vulcanization between the layers of the cord casing of an elastic material, such as rubber. The elastic shell of the body is closed and equipped with a valve mounted in its end to supply a working medium into its cavity, which ensures the deformation of the shell and a certain force to compress the teeth to the surface being cleaned.

The advantage of the proposed design of the device for cleaning pipes is the ability to control the ratio of the pressure of the medium inside the device and the pressure of the medium inside the pipeline due to the housing in the form of a deformable (inflated) elastic shell. When the pressure of compressed air (gas) inside the device changes, the diameter of the device and the pressure of the device on the pipe wall and, accordingly, the friction force on the wall surface change, which, with a large contact area of the cleaning agents with the surface being cleaned, ensures high quality and cleaning performance.

Pa fig. 1 shows an example of a device for cleaning pipes in accordance with one of the proposed designs, comprising a housing in the form of a hollow rubber-cord cylindrical shell 1 with a valve 4 for feeding inside the shell 1, an elastic cover 2 with metal teeth 3 mounted therein.

Pa figure 2 shows an enlarged fragment of the housing of the device, illustrating the relative position of the shell 1 and the cover 2 with the teeth 3 of the cleaning agent and the cuff 6.

Pa fig.Z shows an example of a device in accordance with another proposed design, comprising a housing 1 in the form of a hollow rubber-cord casing with a valve 4 for supplying compressed air (gas) into the casing with metal teeth 3 mounted in the casing 1.

During operation, the device is introduced into the pipe being cleaned through its passage opening. From the source of compressed gas through the hose into the cavity of a closed elastic cylindrical shell 1 serves compressed air (gas). In this case, the diameter of the sheath 1 increases, and the device is pressed tightly by the teeth 3 to the surface of the pipe to be cleaned. Under the influence of liquid pressure on the cylindrical shell 1, the device moves along the pipe, while the teeth 3 of the cleaning agent, inclined in the direction of movement of the device, crush and shear sediment and deposits accumulated on its surface. Loosened deposits are carried out by a fluid flow passing at a high speed in the gap between the pipe wall and the device shell equal to the height of the teeth 3. If the cleaning is insufficient for the first pass of the device, the pressure inside the shell can be increased and the cleaning operation is repeated with an increased diameter of the device and a stronger impact of the teeth cleaning agent on the surface to be cleaned.

The device provides increased productivity and cleaning quality due to the possibility of creating a metered pressure of the teeth on the walls of the pipe being cleaned, as well as the possibility of using one device size for pipes having a diameter range from 1.1 to 1.6 of the shell diameter in the initial state.

In case of large deposits with one device size in several passes (each time blowing the device to the required diameter), it is possible to clean a pipeline having a section narrowing to 0.5 of the pipeline diameter.

Claims (4)

1. A device for cleaning the inner surface of the pipeline, comprising a housing with cleaning agents installed on it, characterized in that the housing is made in the form of an elastic cylindrical shell configured to deform when the working medium is supplied under pressure, and the cleaning agent is made in the form of teeth placed at an angle to the surface of the shell shell. 2. The device according to claim 1, characterized in that the elastic cylindrical shell of the housing is made of rubber-cord material, and the teeth of the cleaning agent are fixed by vulcanization to its surface. 3. The device according to claim 1, characterized in that it is provided with a cover made of an elastic material, for example rubber, placed on the elastic shell of the housing, and the teeth of the cleaning agent are fixed by vulcanization to the surface of the cover. 4. The device according to claim 1, characterized in that it is provided with a cover of elastic material, such as rubber, placed on the elastic shell of the housing, and the teeth of the cleaning agent are fixed on textile tapes mounted by vulcanization in the surface of the cover.