RU160284U1 - PRESSING DEVICE FOR FASTENING LONG-DIMENSIONAL PRODUCTS, PREFERREDLY CABLE, AND A KEY FOR CARRYING OUT ITS OPERATION - Google Patents

Abstract

1. The clamping device for fastening long products, mainly a cable, including a connecting element and a metal tape, characterized in that the connecting element is made in the form of a flat rectangular frame, one end of the metal tape is welded to one of the short sides of the flat frame, and the other end the metal tape is made with the possibility of wrapping around the second loose short side of the flat frame and hold to the pressed object, the flat frame is made thicker than metal tapes, the inner edges and corners of the flat frame are rounded. 2. Clamping device for fastening long products, mainly cable, according to claim 1, characterized in that the device is made of stainless steel. The key for the operation of the clamping device for fastening long products, mainly cable, consists of a handle of circular cross section and a working part of a rectangular cross section with a tapering end, in the working part there are grooves made at an angle relative to the longitudinal axis and with the possibility of gripping the end of a metal tape.

Description

The utility model relates to fastening devices used in the oil, gas industry and other areas requiring installation, cable retention, fastening of long products.

Known fastening connecting element (application 2011103540/12, publ. 10.10.2011 g, application PCT, DE 2009/000925 20090702 publ. 10.08.2012 g), comprising a tape provided with at least one side transverse grooves or transversely located teeth of a sawtooth shape, and a lock that blocks the strip inserted into it in the direction of reverse stretching, moreover, the head is molded at one end of the strip, and the lock is made in the form of a separate part pushed onto the tape, the head is made in the form of two wings that have the shape of an expanded V, shelves cat They enclose a ribbon, and a plate is pulled under the head on the ribbon, the convex side of which is facing the head, and the ribbon on both sides is provided with a ring gear, while the ring gears are offset relative to each other by half a step, and the lock is equipped with two opposite each other locking tongues, or in the case of not shifted gear crowns, the locking tongues in the lock are offset halfway from each other, and the lock is made in the form of a plate, with the convex side of the plate facing th cleverly.

The disadvantage of the fastening connecting element is a large number of interacting parts, which when used reduces the reliability of the fastening. The tension fixing mechanism is not designed to withstand large loads, as keep gear crowns.

The well-known cable protection device in the well (patent RU N85534 of 02.02.2009, publ. 10.06.2009) contains a housing with a longitudinal groove for accommodating the cable. The housing has a recess for installation on the tubing coupling (tubing) and is provided with at least a clamping bracket fixed at one upper end thereof, hinged to one side by a hinge. The housing has a sample for placing the other side of the clamping bracket in the device position assembled on the tubing string, the sample being made with the formation of at least one protrusion on the housing. The device contains a wedge, while the bracket and the housing have at least one stop for interaction with the surface of the wedge.

The disadvantage of this device is that due to the presence of the hinge there is a likelihood of unfastening. Since this device is very large and bulky, has a large weight, then when installing the entire descent pipe string with this device, a large load arises on the entire column. For example, a well depth in western Siberia of 2000 m, a tubing pipe of -10 m, i.e. 200 pipes are needed and for each pipe one tread of this design is required, weighing about 3 kg, which in total is 600 kg. This creates a large additional load on the entire underground structure, which negatively affects the cable retention.

A known device for fastening long products, mainly cable, to tubing (Patent RU N994678, IPC ЕВВ 17/00, published on 02/07/1983).

The mounting unit made in the form of a slot in the body of the clamp is a stress concentrator, which significantly reduces tensile forces and increases the risk of a break. This type of mounting device is not safe, is not able to withstand the high loads required for this mounting for a long period of time.

The known device (patent No. 2431031, IPC ЕВВ 17/00, published on 10/10/2011) is mounted only in the sleeve joint of pipes, respectively, presses the cable only in these places, therefore, the mount does not have the ability to be located along the entire length of the pipe type object , which reduces the quality of the pressure.

Known cable tie with selective coating (patent No. 2096291, IPC B65D 63/00, publ. 20.11.2012 g). The invention relates to coated cable ties for attaching cables to a bundle. The essence of the invention: is a strip with a coating applied only to the lateral edges of the strip, in which a longitudinally directed middle section is left uncovered for engaging with the fixing means in the fixing head of the cable tie, due to which the cable tie has smooth, non-abrasive side edges, without significant deterioration in the effectiveness of the fixing means of the screed.

The disadvantage of this device is that the reliability of the mount is reduced, because the tensile forces of this mount are small, which does not allow it to be used under heavy loads.

The closest analogue to the patented solution is (patent No. 2452845, IPC ЕВВ 17/00, publ. 10.12.2012, a device for pressing and attaching an electric cable and / or pipeline to tubing, (hereinafter the device for pressing) connected by couplings and installed in the production casing of an oil well containing a U-shaped casing made of at least three stages, and tape clamps - metal tapes that provide pressure and fastening of the casing to the tubing in the side walls U-shaped casing in the middle stage section, the height of which is selected to ensure free passage of the tubing string provided with the casing along the borehole, cuts are made for the coupling, the outermost steps of the casing are located at the same level along the length of the casing on opposite sides of its middle steps and are equipped with structural elements - ears - for threading the band clamp, according to the invention, the cutout length of the middle stage of the casing is commensurate with the length of the coupling, structural elements for threading the bands The clamps are made in the form of slots in the side walls of the casing, and their location provides the ability to press the cable and / or pipe to the tubing with a band clamp when it passes through the slots for subsequent mounting on the tubing. In addition, tape clamps - metal tapes - can be made in the form of metal belts with metal buckles at one of their ends. The connecting element is made in the form of slots - ears - in the side walls of the casing for attaching tape clamps.

The disadvantages of the known device for pressing is the low reliability of the fastening due to the possible slipping of the protectors along the pipe during tripping and, as a consequence, their disclosure.

The disadvantages of the known device for pressing is the complexity of the design of the casing, which creates an additional load on the tape clamps (metal tape), which reduces the reliability of the mounting of this device. The disadvantages of the known device for pressing is that the invention relates only to the oil and gas industry, and in particular to devices for protecting the cables and / or pipelines running on tubing in the borehole of the pipe coupling section. This device allows you to press the cable to the tubing pipe only in the extreme steps of the casing, located in the immediate vicinity of the couplings. This device for pressing works only in tandem with the casing due to the fact that it is attracted by itself and attracts the cable through the slots - ears - in the side walls of the casing. Due to the fact that the casing is placed only on the tubing couplings, cable pressing occurs only in this area. The length of the tubing pipe reaches 11.5 m, and this device is mounted at its ends, i.e. on the couplings, then in the middle part of the length of the pipe, a sagging (loose pressing) of the cable is formed. This reduces cable mounting reliability. Such a mount cannot autonomously attract, i.e. without devices such as a clutch. The disadvantages of the known device for pressing is the bulkiness and rigidity of the casing, because stiffeners are present. In this regard, when unfastening the mount from external influences in the column, the casing can damage the cable. During tripping in inclined casing wells in the barrel, the casing contacts the casing because the space is small, and the casing with its dimensions further reduces this space, since it is located on the coupling. As a result, unfastening, loosening of the fastening with further lifting of the casing, damage to the cable and stopping the hoisting operations, as the casing consists of metal, the dimensions of the casing are much larger than the annulus — the space between the tubing sleeve and the casing wall. All of the above reduces the reliability of fastening the cable.

The technical task of the clamping device for fastening long products, mainly the cable (hereinafter, the clamping device), is to increase the reliability of cable fastening by ensuring tight cable clamping, improving manufacturability by ensuring the universality of the clamping device, increasing the life of the clamping device due to its compactness and small dimensions, by reducing the labor costs of mounting and dismantling the pipe string.

The technical result is achieved in that in the clamping device for fastening long products, mainly a cable, including a connecting element and a metal strip, according to a utility model, the connecting element is made in the form of a flat rectangular frame, the long side of which is made with a blunt rounded bend angle, one the end of the metal tape is fixed by welding to one of the short sides of the flat frame, and the other end of the metal tape is made with the possibility of wrapping around the second open Heated short side of the flat frame and hold to the pressed object, the flat frame is made thicker than a metal tape, the inner edges and corners of the flat frame are rounded.

In addition, the clamping device for fastening long products, mainly cable, is made of stainless steel.

In the prototype, when threading a tape clamp (metal tape) through a slot in the side walls of the casing, i.e. in the places of pressing to the pipe in the cable protection device, a voltage concentration occurs both immediately at the very beginning when the tape clamp is tightened to the tubing pipe, and with some kind of hoisting action, there is an additional risk of the tape clamp breaking. And, as a result, the risk of the device breaking.

In the prototype, the device is bulky, because a U-shaped casing is installed on top of the cable in the middle stage section (because the casing is three-stage: before the coupling, after the coupling,) the pressing device is made on top of the supply cable on the coupling, thereby reducing the gap between the casing and the pressing device, passage - the gap becomes smaller, while the likelihood of a hook, shock device for pressing the casing string increases, when we begin to raise or lower the device for pressing.

In the prototype, the design of the device for pressing is not intended for mounting them in non-coupling places, that is, on the body of the pipe without couplings. In the device in the casing, cuts for the coupling are made, comparable with its length in order to abut these cuts on the protrusions of the coupling in order to avoid slipping of this device along the axis of the pipe, which determines the location of the device for pressing.

Unlike the prototype, the proposed design provides a tight fit with a metal tape to a flat frame and a clamped object with a cable, since the clamping device for fastening long products, mainly cable, interacts only with the cable, presses the cable to the pipe type object, all the pressing forces are transmitted only for pressing this cable to an object such as a pipe on a tubing without loss of effort on pressing other elements. This clamping device for fastening long products is not mounted on the sleeve, as in the prototype, but on the body of the pipe type object, thereby not reducing the gap between the sleeve and the casing wall, which eliminates scuffing. Thus, the tight pressing of long products, mainly cable, and the location of the clamping device in the proposed utility model leads to increased reliability of fastening of long products, mainly cable.

In the proposed utility model, external influences and additional loads, for example, impacts on the clamping device due to tight fit and providing a streamlined shape for pressing the device to the tubing and cable, are eliminated due to the fastening and light weight of the structure.

In the proposed utility model, in contrast to the prototype, manufacturability is improved by ensuring the versatility of the clamping device. The versatility is that the clamping device can be made of any length, width, thickness, depending on the required holding forces. The proposed clamping device can be mounted anywhere on the pipe type object, because works without auxiliary structural elements.

Sometimes, when holding several cables or other devices requiring pressing, the holding forces increase - for this the metal tape is made of the greatest thickness and / or width.

In the case where there is limited space for fastening, this clamping device can be made narrower and provide access.

The metal tape is made uniform, of the same width along its entire length, without cuts, narrowing and defects weakening the cross section of the tape, which eliminates the occurrence of stress concentration in individual sections of the metal tape and, accordingly, the pressure device. Stresses occur in the flat frame during installation, and the flat frame is hollow, i.e. its cross section is weaker than the cross section of a metal tape. To increase the tensile strength, the thickness of the metal of the flat frame is made of a greater thickness of the metal of the metal tape, for example, 1.5-2.5 times.

The inner edges and corners of the flat frame are not straight, but rounded in order to reduce stresses that occur when the metal tape is tightened at the place of wrapping it around the wall of the flat frame.

In the well there is an aggressive environment (since hydrogen sulfide is present), which corrodes the metal. In this case, the possibility of damage to the mount, which reduces the reliability of the mount. Therefore, the implementation of the clamping device of steel, not subject to corrosion, for example, stainless steel 10X12, increases the reliability of fastening of the clamping device.

Figure 1 shows the clamping device, front view, figure 2 - clamping device, top view.

The pressing device comprises a metal strip 1, a connecting element - a rectangular rectangular frame 2, the long side 3 of which is made with a blunt rounded bend angle, one end of the metal strip 4 is welded to one of the short sides 5 of the flat frame 2, and the other end of the metal strip 6 made with the possibility of wrapping around the second loose short side 7 of the flat frame 2 and hold to the pressed object, the flat frame 2 is made thicker than the metal tape 1, the inner edges 8 and the corners 9 of the flat p pits 2 are rounded.

The metal tape 1 is wrapped in a loop around the free short side 5 of the flat frame 2 and tightened at the free end and fixed around the cable and the clamped object such as a pipe with the adoption of the shape of the clamped object. The metal tape 1 and the flat frame 2 finally take the form of an object, for example, tubing.

The thickness of the metal of the metal tape 1 and the flat frame 2 is chosen such that it is not able to damage the cable. The small size of the clamping device also eliminates the risk of damage to the mounting cable, tubing pipe by this mounting device.

The dimensions of the flat frame 2 must satisfy the unhindered passage of the metal tape 1, and the bending of this metal tape 1 around the free short side 5 of the flat frame 2 of one of the walls of the frame with its further fixing.

The frame is made curved in cross section, that is, the connecting element is made in the form of a flat frame of rectangular shape, the long side of which is made with a blunt rounded bend angle for a more tight pressing. After installing the clamping device, the flat frame finally takes the form of an object such as a pipe.

The proposed design consists of two parts, installation and dismantling is performed without special additional equipment by one worker with minimal physical effort, without the help and intervention of other workers, which leads to a reduction in the labor costs of installation and dismantling on the pipe string and eliminates cable damage.

Known key for a cylindrical lock (patent RU No. 2416012, publ. 04/10/2011, EV 05/19, Conv. Priority 1.06.2006 AT A951 / 2006)

A key for a cylindrical lock, in particular for unified lock systems, with longitudinal grooves provided on the side surfaces of the key, the location and cross section of which are variable to create variations of the lock. At least one longitudinal groove is provided, the cross-sectional shape of which corresponds to the base triangle, the base side surfaces of which lie in the flat surface of the key, from which both side surfaces of the groove extend to the intersection line, and one of the side surfaces of the groove can also form the base bisector triangle, so that two deep variation grooves can be located in the base triangle, one surface variation groove is formed due to the fact that one of the lateral surface Tei groove has a length corresponding to half the length of the other side surface of the groove which extends from the flat surface of the key to the line of intersection. A cylindrical lock with a key channel for inserting one or more keys, the key channel has longitudinal ribs, the cross-sectional shapes of which correspond to the cross-sectional shapes of the corresponding longitudinal key grooves. The known key has a different function, although it has longitudinal grooves, it is inserted into the channel of the cylindrical lock with ribs, the ribs are made under the grooves in the key.

Known garage overhead lock and key (application RU No. 92009098, published 09/10/95) The key has a cylindrical rod, on the free end of which is mounted a beard with different mass shoulders, with pins that are assembled in the holes of the disk. In the lock cover there is a round hole with a chamfer, in which a disk is located on the inside of which a protrusion is inserted, which, when the lock is assembled, cuts in the crossbar, as well as three through holes in which the ends of the clamps go.

A well-known key has another function - opening, closing, locking the lock.

The above key analogs are structurally distant, therefore, the key design of the proposed utility model does not have a prototype.

The technical task is to increase the reliability of fastening the clamping device for fastening long products, mainly the cable, by providing a tight cable clamp, expanding manufacturability by ensuring the universality of the clamping device, increasing the life of the clamping device due to its compactness and small size, by reducing the labor costs of mounting and dismounting on a pipe string.

The technical result is achieved by the fact that the key for operating the clamping device for fastening long products, mainly a cable, consists of a handle of circular cross section and a working part of a rectangular section with a tapering end, in the working part there are grooves made at an angle relative to the longitudinal axis and with the possibility of gripping the end metal tape.

The unity of technical solutions is observed, because The essential features of a clamping device for fastening long products, mainly a cable and a key for carrying out work of a clamping device for fastening long products, mainly a cable, are aimed at solving one technical problem and when using them, the same new technical result is obtained.

The key is made in the form of a rectangular homogeneous rod, machined from a metal cylinder. The key is a round handle, for example, 250 mm long, and a working part, for example, 100 mm long, in which grooves are made at an angle of 45-60 degrees to the key axis (for example, from a depth of 18 mm). Cross section of the working part 27 × 26 mm. At the end of the working part, for example, two sections are made, forming a narrowing (sharpening). The metal thickness of the metal tape, for example, 0.6 mm. The flat frame is made with internal dimensions of the sides of 35 mm and 40 m. The key is inserted into the flat frame, then we insert the end of the metal tape into one of the key slots, then the key and the metal tape inserted into it are pulled out of the flat frame and pull the key in the direction of the pipe axis metal tape around the free wall of the flat frame and around the pipe to the maximum tightness and tight pressure. From the key groove, we take out the free end of the metal tape that is captured by the groove and, impacting it with the key on the free end of the metal tape, we firmly press it to the pipe. When the metal tape is further tightened with a key through a flat frame, the flat frame finally takes the form of an object such as a pipe.

Figure 3 shows a key, side view.

The key is a handle 10 of circular cross section and a working part 11 with a tapering end 12 and grooves 13.

The proposed design of the clamping device consists of two parts mounted with one key. The tapering end 12 of the working part 11 of the key and the grooves 13 at an angle relative to the longitudinal axis of the key ensure a reliable grip of the free end of the metal tape 2 and its strong pressure against the pipe type object, which increases the reliability of fastening, and also reduces the labor costs of mounting and dismounting on the pipe string .

The increase in the service life of the proposed device is due to the high strength of the cable fastening by tightly pressing the cable.

One clamping device insures another, therefore, with complicated installation, there is the possibility of securing the cable with several devices, which significantly increases the reliability of cable fastening. The required number of presses (clamping devices) to the pipe type object is set at the discretion of the installer without a limit on the number - it is always possible to install the required number of clamping devices - this also includes universality.

The key provides quick operational installation, effectively and quickly tightens the clamping device, and with any size of the clamping device, the key is gripped, since several grooves are made, for example, four or five grooves. The key of this design is a tight cable clamp.

The key has no threads and other elements that are subject to wear, which makes the term of use of the key unlimited.

The technical and economic effect is to reduce the cost of operating the well associated with repair work in case of failure of devices for attaching the cable to the tubing.

Claims (3)

1. The clamping device for fastening long products, mainly cable, including a connecting element and a metal tape, characterized in that the connecting element is made in the form of a rectangular rectangular frame, one end of the metal strip is welded to one of the short sides of the flat frame, and the other end of the metal strip is made with the possibility of wrapping around the second loose short side of the flat frame and holding to the pressed object, the flat frame is thicker metal tape, the inner edges and corners of the flat frame are rounded. 2. The clamping device for fastening long products, mainly cable, according to claim 1, characterized in that The device is made of stainless steel. 3. The key for carrying out the operation of the clamping device for fastening long products, mainly a cable, consists of a handle of circular cross section and a working part of a rectangular section with a tapering end, in the working part there are grooves made at an angle relative to the longitudinal axis and with the possibility of gripping the end of a metal strip.

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