RU2779103C1 - Apparatus for extracting the tools for cleaning and diagnostics of the internal cavity of main oil pipelines and oil product pipelines - Google Patents

Abstract

FIELD: pipelines.

SUBSTANCE: invention relates to the field of pipeline transportation of oil and oil products, namely, to apparatus for extracting the tools for cleaning and diagnostics. Apparatus for extracting the tools for cleaning and diagnostics of the internal cavity of main oil pipelines and oil product pipelines comprises a base guide rod 6 and a delivery unit 2. The base guide rod 6 comprises a grip apparatus 9. The delivery unit 2 comprises an additional guide rod 5. The guide rods are made of components connected by means of right-threaded sleeves 11. The guide rods 5 and 6 comprise handles 10 with sleeves. The grip apparatus 9 is connected with the base guide rod 6 by means of a left-threaded sleeve 12. The grip apparatus 9 comprises a body with a cable secured thereof, a latch, and a return latch mechanism. The delivery unit 2 is made in the form of a coil with a cutout in the upper part thereof, is connected with wheel units 3 in the lower part thereof, and comprises a sleeve 4 secured on the wall of the delivery unit 2 between the wheel units 3 for attaching the additional guide rod 5. The delivery unit 2 is equipped with three chains 7. The chains 7 are detachably connected with the walls of the delivery unit 2 and the guide ring 8 by means of a "bolt-nut" connection.

EFFECT: increase in the efficiency of the process of extraction of the tools for cleaning and diagnostics.

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Description

The invention relates to the field of pipeline transport of oil and oil products, and in particular to devices for extracting cleaning and diagnostic means (SOD) when cleaning and diagnosing the internal cavity of main oil pipelines and oil product pipelines.

A device is known for stocking into the launch chamber and extracting pipelines from the receiving chamber of the SOD, including a frame with guides, a retractable tray, a pusher mounted on a movable cart, while the pusher is a reciprocating linear movement mechanism, consisting of a screw or ball screw transmission and a gearbox with two input ends of the shaft, one of which has a drive motor of any principle of operation, the other has a hand wheel, and a working body in the form of a retractable rod, hinged with a quick-release connection to the rear of the tray; the frame is made two-level, the lower level of the frame is pivotally attached to the chamber, and at four corners it is adjustable on the base using vertical jacks with drives, the upper level of the frame is connected to the lower level from the side of the chamber by a vertical axis through the thrust bearing, and on the opposite side it is movably supported through the system bearing wheels, the lower level of the frame is equipped with a jack for adjusting the upper level of the frame relative to the lower level in the horizontal plane, on the upper level of the frame there are guides for rolling in and out of the tray, guides for reversing without tipping over the movement of the trolley with a pusher; the tray consists of three parts, while the central part is made in the form of a cylindrical half-shell with an open upper part, on the outer surface of which there are several rows of wheels and guides for the sliders of the rear part of the tray, the front part of the tray is detachably connected to the central part and is a shell, the outer the surface of which repeats the shape of the inner surface of the conical transition of the chamber, and the inner surface is made cylindrical, with a diameter equal to the inner diameter of the pipeline and with an eccentric transition to facilitate projectile baiting, a sealing element is installed on the outer surface of the front part of the tray, sealing the gap between the inner surface of the chamber and the outer surface of the front part of the tray, the rear part of the tray is a flat bottom retractable along the sliders with a detachable power heel with an engagement unit, detachably connected to the central part of the tray, mounted on a wheel pair, along the perimeter bottom, at the points of docking with the central part of the tray, sliders are installed that move along the guides of the central part of the tray and are equipped with locks for limiting the movement of the bottom, windows are made on the bottom for the passage of the product, and there are also a lock and elastic elements that fix the position of the tray in the radial and axial directions relative to chamber, respectively, in the center of the bottom there is a cutout for the passage of structural elements of the pusher, and in the power heel - a socket for attaching the retractable pusher rod. (Pat. No. 2390392 C1, class B08B 9/053, published on May 27, 2010).

The disadvantages of this technical solution is the complexity of the design and, as a consequence, the complexity of its operation and maintenance.

The closest analogue to the claimed invention is a device for extracting a pipeline cleaning agent from a receiving chamber, containing a composite rod, at one end of which a hook is installed that can be placed in the cleaning agent gripping hole, and at the other end - a gripping handle, and at least two rods, each of which is mounted on the rod perpendicularly and symmetrically relative to its axis, and at the ends of the rods there are wheels installed with the possibility of rotation about an axis perpendicular to the axis of the rods and contact with the inner surface of the receiving chamber when the device is inserted into it. (RU 130524 U1, class B08B 9/00, published on 27.07.2013).

The disadvantages of this solution is the inability to maneuver the rod with the hook device installed relative to the center of the SOD chamber, as well as the low efficiency of the hook of the bumper lug of the SOD means.

The technical task is to create a device for extracting SOD from the SOD receiving chambers, which allows you to quickly, safely and reliably extract the SOD projectile from the chamber cavity.

The technical result provided by the claimed invention is to increase the efficiency of the process of extracting SOD from the SOD receiving chambers.

The technical problem and the technical result are achieved by the fact that the device for extracting SOD from the SOD receiving chambers contains a main guide rod and a delivery unit, while the main guide rod contains a capture device, and the delivery unit is equipped with an additional guide rod, the guide rods are made of components connected through bushings with right-hand thread and contain handles with bushings, while the gripping device is connected to the main guide rod by means of a bushing with left-hand thread and contains a body with a cable fixed to it, a latch and a latch return mechanism, while the delivery unit is made in the form of a coil with a cutout in the upper part, connected to the wheel blocks in the lower part for its movement along the SOD receiving chamber, and contains a bushing fixed on the wall of the delivery block between the wheel blocks for attaching an additional guide rod, and three chains connected to the walls of the delivery block and the guide ring detachably middle connection "bolt-nut".

The design of the device for extracting SOD from the SOD receiving chambers is shown in Fig. 1 and 2.

The figure 1 shows the assembly drawing of the device for extracting SOD.

The figure 2 shows the device in the cavity of the SOD receiving chamber.

The figures show the following positions:

1 - SOD receiving chamber;

2 - delivery block;

3 - wheel block;

4 - bushing;

5 - additional guide rod;

6 - main guide rod;

7 - chain;

8 - guide ring;

9 - capture device;

10 - guide rod handle;

11 - bushing;

12 - bushing.

The device for extracting cleaning and diagnostic tools from the chambers for receiving cleaning and diagnostic tools (Fig. 1, Fig. 2) contains the main guide rod 6 with a gripping device 9 fixed on it, a delivery unit 2 containing an additional guide rod 5. Guide rods 5 and 6 are made of components that are connected by means of bushings 11 with right-hand thread and contain handles 10 with bushings (not shown in the drawings) for mounting on guide rods 5 and 6. The gripping device 9 is connected to the main guide rod 6 through a sleeve 12 with left-hand thread . The capture device 9 includes a body with a cable attached to it, a latch and a latch return mechanism (not shown in the figures). The delivery block 2 is made in the form of a coil with a cutout in the upper part, in its lower part it is connected to the wheel blocks 3 for moving along the SOD receiving chamber 1. The delivery block 2 contains a sleeve 4 placed on the wall of the delivery block 2 between the wheel blocks 3 for attaching an additional guide rod 5, and three chains 7 connected to the walls of the delivery unit 2 and the guide ring 8 detachably by means of a threaded connection "bolt-nut".

The device for extracting SOD from the SOD receiving chambers operates as follows.

First, the approximate distance from the bolt to the projectile is estimated in order to assemble the device from a certain number of components of the guide rods 5, 6. Then the gripping device 9 with a cable is also screwed onto the main guide rod 6 by means of a left-hand threaded sleeve 12 to remove the entire structure at a distance.

After assembly, the device for extracting SOD from the SOD receiving chambers is directed to the SOD bumper by means of the delivery unit 2, into the bushing 4 of which an additional guide rod 5 is screwed, allowing the delivery unit 2 to be moved along the SOD receiving chamber. After the device for extracting SOD from the SOD receiving chambers, the gripper 9 rests against the SOD bumper with the help of the handle 10 and free running due to the chains 7, the gripper 9 is controlled to put it into the SOD eye. After hooking, you need to make sure it is reliable. After that, the main guide rod 6 is removed from the gripper 9, and since the gripper 9 is connected to the main guide rod 6 by means of a left-hand threaded sleeve 12, and the components of the main guide rod 6 are connected to the main guide rod 6 by means of a right-hand threaded sleeve 11, this allows the connector of the capture device 9 with a cable from the main guide rod 6. The device for extracting the SOD is removed from the receiving chamber of the SOD 1 by the cable, using extraction tools (winches, etc.).

If the degree of freedom of movement of the gripping device 9 is insufficient (it may not be enough, since the work is carried out at a great distance), the delivery unit 2 is returned and the guide ring 8 is adjusted in height due to the chains 7 detachably connected to it, this ensures an increase in the efficiency of the SOD extraction process for due to the ability to hook SOD projectiles, with the presence of an angle of deviation of their position relative to the center of the cavity of the expanded part of the SOD, which makes it possible to foresee non-standard situations when cleaning and diagnostic means enter the receiving chamber.

3 people are required for the capture: one person directs the delivery unit 2, the second person controls the capture device 9, and the third person illuminates the lantern and prompts the two performers.

Parts of the device that do not create metal-to-metal friction can be made of steel; the rollers of the wheel block, which ensure the movement of the device for extracting SOD from the SOD receiving chambers inside the cavity of the expanded part of the SOD chamber, can be made of used polyurethane cuffs; the gripping device can be made of stainless steel; threaded handle bushings, guide rod extensions, and gripping devices can be made of bronze. Such execution of components from materials that exclude sparking and fire and explosion hazard ensures the safety of working personnel and equipment of the reception chamber.

The use of the claimed invention will improve the efficiency of the process of extracting SOD from the SOD receiving chamber by simplifying the design, the ability to hook SOD projectiles, with the presence of an angle of deviation of their position relative to the center of the cavity of the expanded part of the SOD.

The proposed device for extracting SOD from SOD receiving chambers has detachable elements and a simple design that ensures its mobility and use both on the territory of the site facility and on the linear part of the main pipelines, while the use of the proposed technical solution does not require special training.

Claims (1)

A device for extracting means for cleaning and diagnosing the internal cavity of main oil pipelines and oil product pipelines, containing a main guide rod and a delivery unit, characterized in that the main guide rod contains a gripping device, and the delivery unit is equipped with an additional guide rod, while the guide rods are made of components, connected by means of bushings with right-hand thread, and contain handles with bushings, the gripping device is connected to the main guide rod by means of a bushing with left-hand thread and contains a body with a cable fixed to it, a latch and a latch return mechanism, while the delivery unit is made in the form of a coil with a cutout in the upper part, connected to the wheel blocks in the lower part for its movement along the cleaning and diagnostics receiving chamber and contains a bushing fixed on the wall of the delivery block between the wheel blocks for attaching an additional guide rod, and three chains connected to the walls and the delivery unit and the guide ring are detachable by means of a “bolt-nut” connection.

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