RU139817U1 - DEVICE FOR CLEANING THE PIPELINE CAVITY - Google Patents

Abstract

A device for cleaning the cavity of the pipeline, including a working chamber, a stem and a cuff, characterized in that it contains a second cuff, the working chamber is made in the form of a pipe segment provided with end walls, and is divided by partitions into three compartments, while in the first compartment rotation means, water supply means, detergent supply agent and spent mixture removal means are installed, the second compartment is for accommodating the washing agent, in the third compartment intended for water, an electric stiff reservoir, on the front end wall of the device fixed cuffs are fixed, made with the possibility of contact with the inner surface of the pipeline, while the front end wall and both cuffs have coaxial central holes through which the rod passes through which the feed channel water and the supply channel of the washing agent, with one end of the rod fixed to the means of rotation, and on the other end of the rod, perpendicular to the axis of the rod, a rod is fixed, at the ends of which spring-loaded brushes installed with the possibility of extending to full contact with the inner surface of the pipeline are equipped with nozzles having inclined nozzles for supplying a cleaning agent to the inner surface of the pipeline, the second compartment being connected through a detergent supply means to the input of the washing agent supply channel, and two the outlet of the said channel is connected to nozzles located in the brushes, the third compartment is connected through the water supply means to the inlet of the water supply channel, and the output of the

Description

The utility model relates to the field of cleaning the internal surfaces of pipelines and can be used in the oil and gas industry.

A device for cleaning the inner surface of the pipeline (RF patent No. 97066, B08B 9/04, publ. 08/27/2010), consisting of a housing, around the perimeter of which the cuff is placed. Inlet walls are located in the end wall, in which guide vanes are installed at an angle relative to the axis of the housing. Outlet openings are located in the opposite end wall. A rod is arranged coaxially with it in rotation with the possibility of rotation. The impeller is rigidly fixed on the rod in the housing. A guide nozzle made in the form of hemispherical petals is fixed at the free end of the rod. A fixing sleeve is installed on the shaft between the housing and the guide nozzle, in which cleaning elements (at least three) are fixed by means of a hinge. The cleaning elements are made in the form of holders and installed in them at an angle relative to the axis of the device with the possibility of rotation of the cutters. On the hinges from the side of the guide nozzle, spring guides are placed. Between the cleaning elements and the spring guides are springs. The known device does not provide cleaning of the inner surface of the pipeline to a purity that allows for in-pipe inspection of metal pipes, and also requires the presence in the cavity of the pipeline of a liquid medium for movement through the pipeline. In addition, the cleaning products remain in the pipeline.

A device for cleaning the inner surface of the pipeline (RF patent No. 82604, B08B 9/04, publ. 10.05.2009), consisting of a rod on which the body is rigidly fixed. The housing has end walls, a cylindrical section and a section made in the form of a truncated cone. On the cylindrical section of the housing around the perimeter is an elastic cuff. On the site, made in the form of a truncated cone, there are outlet openings. On the end wall of the housing, located on the side of the cylindrical section, there are inlet openings. On the outer side of the end wall adjacent to the truncated portion of the housing, a cleaning element is fixed. In the housing on the rod are bushings. One of the bushings is fixed on the rod, the other with the possibility of rotation and axial movement along the rod. The contacting ends of the bushings are helical and have ledges. The impeller is fixed on the movable sleeve. The back of the movable sleeve is made in the form of a truncated cone. The known device is ineffective when removing viscous deposits with high adhesion from the inner surface of the pipelines. In addition, the movement of the device is carried out by pumping through a cleaned pipeline of a liquid medium.

The closest technical solution (prototype) to the claimed utility model is a device for cleaning the inner surface of pressureless pipelines (RF patent No. 2464113 B08B 9/04, publ. 10/10/2011), which is a hydraulic monitor cuff fixed in a cylinder that is plugged from the rear in the direction of travel end face. The cuff, cylinder and end cap form a chamber where water is supplied, which blurs deposits through the conical slots of the cuff. The pipeline is cleaned with jets that create a cylindrical layer parallel to the pipeline. The jets are close to the pipe wall and they are moved along the pipe, washing away deposits and washing them into a well or sludge outlet. The device is towed by a cable, cleaning the pipe and calibrating the channel. The device is also equipped with a return cable. A disadvantage of the known device is the use of two cables to move this device, which leads to the need to provide access to the cleaned section of the pipeline from its opposite ends. In addition, a well or sludge outlet is required to wash off deposits.

The task to which the proposed utility model is directed is to create a device whose design ensures the cleaning of the inner surface of pipelines of variable diameter.

The technical result achieved by the implementation of the utility model is to increase the cleaning efficiency of the inner surface of pipelines by combining mechanical and chemical effects on contaminants and simplify the movement of the device, as well as expanding the functionality of the device by providing cleaning of pipelines of variable diameter.

The technical result is achieved due to the fact that the device for cleaning the cavity of the pipeline, including the working chamber, the rod and the cuff, contains a second cuff. The working chamber is made in the form of a pipe segment provided with end walls, and is divided by partitions into three compartments. In the first compartment of the device, a means of rotation, a means of supplying water, a means of supplying a washing agent and a means of discharging the spent mixture are installed. The second compartment is designed to house the cleaning agent. In the third compartment, designed for water, an elastic reservoir is placed. On the front wall of the device along the end wall there are fixed cuffs rigidly interconnected, made with the possibility of contact with the inner surface of the pipeline. The front end wall and both cuffs have coaxial central holes through which the rod passes, in which the water supply channel and the detergent supply channel are made. One end of the rod is fixed on the rotation means, and on the other end of the rod, perpendicular to the axis of the rod, a rod is fixed, at the ends of which are mounted spring-loaded brushes fitted with nozzles having inclined nozzles for supplying a cleaning agent on the inner surface of the pipeline. The second compartment is connected through the detergent supply means to the inlet of the detergent supply channel, and the two outputs of said channel are connected to nozzles placed in the brushes. The third compartment is connected through the water supply means to the inlet of the water supply channel, and the outlet of the said channel located on the rod between the cuffs is made in the form of a nozzle whose nozzle is perpendicular to the axis of the rod. The elastic tank is communicated through a means of removal of the spent mixture with a cleaned cavity of the pipeline, limited by cuffs. On the outer surface of the working chamber four wheels are installed with the possibility of movement along the inner surface of the pipeline, equipped with electric drives. A hatch with a removable cover is made in the rear end wall of the working chamber.

The drawing shows a General view of the proposed device (section).

The device comprises a working chamber (1), made in the form of a pipe segment provided with end walls. The working chamber (1) is divided by partitions into three compartments: (2), (3), (4). In the first compartment of the device (2), the following are installed: rotation means (5), made in the form of an electric drive; means for supplying (6) water, means for supplying (7) detergent, means for removing (8) the spent mixture, each of which includes a pump and an electric drive. The second misfire (3) is intended for placement of a washing agent in it. In the third compartment (4), designed for water, there is an elastic reservoir (9) for collecting the spent mixture made of polymer material. The device contains two cuffs (10) and (11), which are rigidly interconnected with the formation of a predetermined gap and are fixed to the front wall in the direction of travel of the device through a detachable connection, for example, using bolts. Cuffs (10) and (11), the diameter of which is equal to the inner diameter of the pipeline, are made of an elastic material, for example, polyurethane. The front end wall and both cuffs (10), (11) have coaxial central through holes through which the rod (12) passes, in the cavity of which there is a water supply channel and a detergent supply channel (not shown in the drawing). One end of the rod (12) is mounted on the rotation means (5). At the other end of the rod (12), perpendicular to the axis of the rod, a rod (13) is fixed, at the ends of which are placed spring-loaded replaceable brushes (14), mounted with the possibility of extension to full contact with the inner surface of the pipeline, equipped with nozzles with inclined nozzles for supplying the washing agent to the inner surface of the pipeline. The second compartment (3) is connected by a hose (15) through the detergent supply (7) to the input of the detergent supply channel, and the two exits of the detergent supply channel located on the rod (12) in front of the front collar are connected by hoses (16) to the in brushes with nozzles. The third compartment (4) of the working chamber (1) is connected by a hose (17) through the water supply means (6) to the inlet of the water supply channel, and the outlet of the water supply channel located on the rod (12) between the cuffs is made in the form of an nozzle, the nozzle of which perpendicular to the axis of the rod (12). The elastic reservoir (9) is communicated through a means of removal (8) of the spent mixture with a pipe cavity to be cleaned by a hose (18), the inlet end of which is equipped with a pipe and is located in the lower part of the cavity to be cleaned between the cuffs (10) and (11). Four wheels (19) equipped with electric drives (not shown) are mounted on the outer surface of the working chamber (1) to move along the inner surface of the pipeline. A hatch with a removable sealed cover (20) is made in the rear end wall of the working chamber (1), through which the elastic reservoir (9) is folded into the third compartment (4). A power cable (21) is provided for supplying electricity. The detergent is an anionic surfactant.

The device operates as follows.

In the cleaned cavity of the pipeline (22) install the device assembly. Spring-loaded brushes (14) are firmly pressed against the inner surface of the pipeline. When power is supplied through the cable (21), the device moves in the cavity of the pipeline due to the rotation of the drive wheels (19). In this case, the rod (12) rotates together with the rod (13) and brushes (14). From the second compartment (3) through the supply channel of the cleaning agent made in the rod (12), using the supply means (7) of the cleaning agent, hoses (15) and (16) supply the cleaning agent to the brushes (14) provided with nozzles, through nozzles of which the cleaning agent is fed to the surface to be cleaned. Due to the rotation of the rod (12) and brushes (14) there is a uniform distribution of the mixture of contaminants with a washing agent on the inner surface of the pipeline. When water is supplied by means of a water supply means (6) coming from the third compartment (4) through a hose (17) and a water supply channel through an nozzle located on the stem (12) onto the inner surface of the pipeline, the pipeline cavity is cleaned by erosion . Moreover, in the pipeline between the cuffs (10) and (11), a closed volume is formed in which liquefied contaminants accumulate. Liquid contaminants enter the hose (18) through the nozzle, from where, using the exhaust means (8), the spent mixture is transferred to the elastic reservoir (9). As the device moves through the pipeline, the elastic reservoir (9) is gradually filled with a waste mixture consisting of contaminants, water and a washing agent, while the second (3) and third (4) compartments are freed from water and a washing agent. At the moment when the water in the third compartment (4) ends and the elastic reservoir (9) is filled, the device is stopped, the reverse of the engines driving the wheels is turned on, and the device starts moving in the opposite direction. In this case, the rotation of the rod (12) with brushes (14) stops.

Thus, the proposed device can improve the cleaning efficiency of the inner surface of the pipeline and provides cleaning of pipelines of variable diameter, which extends the functionality of the device.

Claims (1)

A device for cleaning the cavity of the pipeline, including a working chamber, a stem and a cuff, characterized in that it contains a second cuff, the working chamber is made in the form of a pipe segment provided with end walls, and is divided by partitions into three compartments, while in the first compartment rotation means, water supply means, detergent supply agent and spent mixture removal means are installed, the second compartment is for accommodating the washing agent, in the third compartment intended for water, an electric stiff reservoir, on the front end wall of the device fixed cuffs are fixed, made with the possibility of contact with the inner surface of the pipeline, while the front end wall and both cuffs have coaxial central holes through which the rod passes through which the feed channel water and the supply channel of the washing agent, with one end of the rod fixed to the means of rotation, and on the other end of the rod, perpendicular to the axis of the rod, a rod is fixed, at the ends of which spring-loaded brushes installed with the possibility of extending to full contact with the inner surface of the pipeline are equipped with nozzles having inclined nozzles for supplying a cleaning agent to the inner surface of the pipeline, the second compartment being connected through a detergent supply means to the input of the washing agent supply channel, and two the outlet of the said channel is connected to nozzles located in the brushes, the third compartment is connected through the water supply means to the inlet of the water supply channel, and the output of the the shaft located on the rod between the cuffs is made in the form of a nozzle, the nozzle of which is perpendicular to the axis of the rod, the elastic reservoir is communicated through means for removing the spent mixture with a cleaned pipe cavity bounded by cuffs, four wheels are installed on the outer surface of the working chamber to move along the inner surface of the pipeline equipped with electric drives, a hatch with a removable cover is made in the rear end wall of the working chamber.

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