WO2016093741A1

WO2016093741A1 - Design of an element for sealing a pipeline shutoff valve and shutoff and control valve

Info

Publication number: WO2016093741A1
Application number: PCT/RU2015/000834
Authority: WO
Inventors: Олег Григорьевич ОТСТАВНОЙ
Original assignee: Олег Григорьевич ОТСТАВНОЙ
Priority date: 2014-12-09
Filing date: 2015-11-30
Publication date: 2016-06-16

Abstract

The design of an element for sealing a pipeline shutoff valve and shutoff and control valve comprises a cylindrical body in the form of a disk, which has a central opening and securing through-holes, and openings for the passage of a flexible monitoring element, which are in the form of transverse through grooves. The design of the element comprises a cylindrical blade in the form of a disk having a diameter equal to that of the central opening in the cylindrical body, and provided with: two-sided vertical surface cutouts on the side of one of the bases thereof, said cutouts being provided with shoulders which form cutting edges; and horizontal platforms for accommodating the flexible monitoring element, which platforms are disposed parallel to the other base of the blade. The blade is provided with a central installation opening. The surface cutouts, shoulders and horizontal platforms are positioned so as to mirror one another. The invention allows for expanding the possibilities for sealing pipeline valves, for providing a compact embodiment of the element, and for enhancing the reliability of the design.

Description

NODE DESIGN

SEALING PIPELINE BUTTERFLY AND BUTTING AND CONTROL VALVES

The field of technology.

The invention relates to devices for the standard sealing of pipeline valves to prevent unauthorized selection of the medium in the pipeline section after the valves are sealed and can be used to seal any type of valves and valves (butterfly valves, ball valves, valves, valves) pipelines for various purposes.

The prior art.

A known container for sealing faucets related to means for preventing unauthorized access to the mechanism for opening water taps sealed with wire, and containing a closed chamber for the mechanism of opening the faucet, connected to the cylindrical part of the housing by a partition with an opening for the sealing wire , RU tfs 96211 Ul, F16K35 / 12, 07.20.2010.

A device is known for sealing two pipe cylindrical systems connected by a nut, consisting of two straps tightened in “disposable locks” connected by jumpers to ensure that the connection is fixed on both sides so that the connecting nut of the sealing pipe system is between straps and related to means for monitoring tube cylindrical systems, RU N ° 53058 Ul, G09F3 / 03, 04/27/2006; RU L 51266 Ul, G09F3 / 03, 01.27.2006.

A known set for sealing pipe fittings as valves, latches, valves, including a flexible element for covering valves, a clip for two ends of a flexible element, a plate with a central hole and holes for threading a flexible element, RU N ° 52238 Ul, G09F3 / 03.10.03 .2006.

A locking device for a pipeline tap is known, comprising flexible control elements, a cylindrical body with openings made through with the possibility of passage of a flexible control element, RU N ° 122740 U1, F16K35 / 10, 12/10/2012.

This technical solution was adopted as the closest analogue of the present invention.

The locking device for the pipeline crane of the closest analogue contains a cylindrical body, which is made with a working cavity having a closed rounded upper part and an open lower part of the body, and is equipped with two holes and two radius cutouts, the holes being made on the rounded upper part, and radius cutouts are located in the lower part of the body, with the possibility of fixing the device. The cylindrical body of the closure blocking device of the closest analogue is designed to lock and seal only pipeline valves.

In the locking device of the closest analogue, fixation is carried out with a cable lock or seal, which provides a visual perception of sealing.

Disclosure of the invention. The invention solves a problem allowing to increase and expand the possibilities of sealing pipe fittings, to ensure compact assembly and increase the reliability of the design.

According to the invention, this problem is solved due to the fact that the design of the sealing unit for pipeline shut-off and shut-off and control valves includes flexible control elements, a cylindrical body with holes made through with the possibility of passage of a flexible control element.

The cylindrical body is made in the form of a disk with a central hole and has through mounting holes and through transverse grooves for a flexible control element.

The design further comprises a cylindrical knife in the form of a disk with a diameter equal to the diameter of the central hole of the cylindrical body. The knife is equipped with bilateral vertical surface cutouts from one of its bases.

The surface cutouts are made with ledges forming the cutting edges.

The surface cutouts are made with horizontal platforms for placing a flexible control element, parallel to the other base of the knife

The knife has a central mounting hole.

Moreover, each surface cut-outs, ledges and horizontal platforms are mirrored relative to each other.

The central mounting hole of the knife may be in the form of a square or a shape of a cylinder with flats removed, or a shape of a cylinder with a key, or a shape of a cylinder with two keys located at an angle of 90 degrees, or a shape of a cylinder with two keys, located diametrically.

The applicant has not established any sources of information that would contain information on technical solutions identical to the claimed device.

This, according to the applicant, determines the compliance of the invention with the criterion of "novelty" ().

The immediate technical result is to enable inspectors of commercial environmental metering services to regularly and reliably seal shut-off and shut-off and control valves and completely exclude unauthorized selection (theft) of the medium from the site a pipeline located after the sealed fittings are installed and sealed, based on the cutting of the flexible control element when it is pinched between two faces of the cylindrical body and the knife, made in the form of disks during the opening of the fittings or when trying to open the sealed fittings.

This technical result is not a consequence of the known properties, which allows, according to the applicant, to recognize the claimed technical solution meets the criterion of "inventive step" (IS).

The implementation of the claimed technical solution is confirmed by the use of parts in the assembly design that are widely used in pipeline valves, and experimental testing determines, according to the applicant, its compliance with the criterion of “industrial applicability” (IA).

A brief description of the drawings.

In the future, the claimed technical solution is illustrated by a description of an example of its implementation with reference to the accompanying drawings, where

in FIG. 1— Design of the sealing unit for pipeline shutoff valves, general view;

in FIG. 2 — Housing assembly for sealing pipeline valves, general view; on fig.Z — Knife of the sealing assembly for pipeline shut-off valves, general view (special case);

Fig. 4 — Knife of a sealing assembly for pipeline shutoff valves, general view (special case);

in Fig. 5 — Knife of a sealing assembly for pipeline shut-off valves, general view (special case);

Fig.6 - Knife sealing assembly of pipeline valves, general view (special case);

Fig. 7 — Knife of a sealing assembly for pipeline shut-off valves, general view (special case).

on Fig - Sealed pipeline shutoff valves, complete (information drawing, general view).

The best embodiment of the invention.

The design of the sealing unit contains:

Flexible control elements -1.

The cylindrical case in the form of a disk - 2.

The central hole (housing 2) is 3.

Through mounting holes (housing 2) - 4.

Through transverse grooves (housing 2) - 5.

Knife in the form of a disk - 6,

base (disk 6) - 7,

base (disk 6) - 8,

bilateral vertical surface cuts (novanie 7) - 9,

ledges (at cutouts 9) - 10, cutting edges (10 ledges) - 1 1,

horizontal platforms (parallel to the base 8) -

12.

The central mounting hole in the shape of a square is 13,

the Central mounting hole in the form of a cylinder with removed flats - 14,

a central mounting hole in the form of a cylinder with a key - 15,

a central mounting hole in the form of a cylinder with dowels located at an angle of 90 degrees - 16,

the central mounting hole in the form of a cylinder with dowels located diametrically - 17.

The design of the sealing unit for pipeline shut-off and shut-off and control valves includes flexible control elements 1, a cylindrical body 2 and a knife 6.

The cylindrical housing 2 is made in the form of a disk with a central hole 3.

The cylindrical housing 2 has through mounting holes 4 and through transverse grooves 5 for passage of the flexible control element 1.

The design further comprises a knife 6 of a cylindrical shape in the form of a disk with a diameter equal to the diameter of the central hole 3 of the cylindrical body 2. The knife 6 is provided with bilateral vertical surface cutouts 9 from the side of one of its bases 7, made with ledges 10, forming cutting edges 11.

The surface cutouts 9 are made with horizontal pads 12 for accommodating a flexible control element 1, parallel to the other base 8 of the knife 6. The knife 6 has a central mounting hole.

In this case, each surface cutouts 9, ledges 10 and horizontal platforms 12 are mirrored relative to each other.

The central mounting hole of the knife 6 may be in the form of a square 13, the shape of a cylinder with removed flats 14, the shape of a cylinder with a key 15, the shape of a cylinder with two dowels 16 located at an angle of 90 degrees, the shape of a cylinder with two dowels 17 located diametrically.

Sealing pipeline valves using the proposed design of the node is as follows. To shut off the water flow, various shut-off and shut-off and control pipe fittings are used.

Sealing is carried out using an inter-flange shutter (Fig. 8) with an electric actuator (Fig. 8) (valves with actuators are most difficult or impossible to effectively effectively seal), which is installed in the closed position for blocking the pipeline and tracking the perfect fact of opening sealed fittings.

A cylindrical body 2 in the form of a disk is mounted on a connecting flange (not shown) for an electric actuator of an interflange shutter.

A knife 6 is mounted on a rod (not shown) of the interflange shutter and placed in the central hole 3 of the cylindrical body 2.

Then, an electric actuator is put on the inter-flange shutter rod, which is drawn to the connecting flange of the inter-flange shutter by bolts threaded through the flange of the inter-flange shutter under the electric actuator and the cylindrical body 2 of the sealing assembly.

The electrically operated interflange valve is mounted on the pipeline and placed in the closed position.

A flexible control element 1 (in this example, wire) encompasses the reinforcement through the body (not shown) of the interflange valve, the pipeline and is guided through the transverse grooves 5 in the cylindrical body 2 so that it passes through the cylindrical body 2 and exits through on the opposite side, they again enclose the interflange shutter body for several turns and install a control seal (not shown), which may have an individual number or special distinguishing features: color, shape, etc. Wire 1 must be in tension, tension is carried out “by hand”. Wire tension 1 check the absence of accidental breakage at the time of sealing and its integrity during subsequent inspections. Also, the tensioned wire 1 does not allow removing the cylindrical body 2 from the connecting flange of the electric drive for the subsequent opening of the fittings without breaking the seal for the purpose of illegal selection (theft) of the transported medium.

An act of sealing reinforcement is made with the number of the seal or its distinguishing features.

When opening (or making an attempt to open) the fittings, the following occurs:

Voltage is applied to the electric drive motor and the motor starts to rotate, driving the drive sleeve (not shown), which has a rigid engagement with the valve stem.

The valve stem begins to rotate, the valve body begins to change its position: the valve body begins to rotate around its axis and the process of opening the valve begins. The cylindrical body 2 of the sealing assembly remains fixed at all times with respect to the shutter. Simultaneously with the start of rotation of the shutter disk, due to the rigid engagement on the same rod with the disk, the knife 6 located in the cylindrical body 2 also begins to rotate. When turned at a certain angle, the knife 3 overlaps the through transverse holes 5 in the cylindrical body 2, in which a flexible control element 1 is placed, which is cut by the cutting edge 11 of the knife 6.

The valve continues to open to the “fully open” position - when the valve is opened or further opening is specially stopped, it indicates an attempt to open the valve.

The cut ends of the flexible control element 1 are easily removed from the cylindrical body 2 (or fall out of it themselves) and visually inform about the fact of opening the valve (or about an attempt to open) and the violation of the integrity of the flexible control element 1 with a seal.

To remotely transmit information about the opening of the valve (or attempt to open the valve) in addition to the flexible control element 1, a wire can be passed through the cylindrical housing 2 through which a current signal is supplied. When the wire is cut with a knife 6, the current signal drops out, which is perceived by the signal receiver as the fact of the valve opening (or an attempt to open).

At the moment of opening the interflange shutter, the electric drive must apply maximum force (shear force of the shutter shutter), which is much higher than the working force required to rotate the shifted shutter of the interflange shutter. It is also necessary to spend some effort on cutting the wire with a knife 6. In order to prevent the cutting force of the wire from being summed with the shear force at one moment in time, it is envisaged that the cutting of the wire occurs after a shift of the disk of the interflange shutter (i.e., the transition of the operating mode of the electric drive, and, accordingly, the torque torque from maximum to nominal).

The return of the interflange shutter to the initial “closed” position does not restore the integrity of the seal. It is necessary to remove the remnants of the flexible control element 1 of the torn seal and re-seal it again.

The sealing unit can be installed on the inter-flange valve in the closed (open) positions, as well as in the intermediate positions inherent in shut-off and control valves.

The cylindrical housing 2 may have protrusions and depressions on each of the bases, respectively, which contributes to the accuracy of the installation of the electric actuator and the wafer when mounting the sealing unit.

The design of the sealing unit allows you to install it on different types of valves with different types of actuators: a handle, gearbox, electric, pneumatic and others, and various modifications of the assembly knife allow you to install the unit on valves with different versions of the stem: square, rhombus, cylinder with keys , cylinder with removed flats, cylinder with splines and others. The dimensions of the cylindrical housing 2 as its diameter, diameter and depth of the protrusion and trough, diameter and number of bolt holes correspond to the standard ISO 5211, clause 4.5 “Connection of types F03-F60 for single-turn actuators”, ST TsKBA 062- 2009 “Pipeline fittings. Rotary Actuators. Connecting dimensions ”, and can also be made to custom shapes and sizes of the connecting flange of the valve and actuator.

The use of a sealing unit for shut-off and shut-off and control valves with the proposed design of the knife and the housing allows it to be installed both on part-turn valves (butterfly valves, ball valves) and on multi-turn valves (valves, valves), which expands the possibilities for sealing .

The design of the sealing assembly from a cylindrical body in the form of a disk and a knife in the form of a disk with a central hole of a cylindrical body equal to the diameter of the knife disk provides compactness to the structure.

The implementation of the knife with two-sided vertical surface cutouts on the side of one of its bases, with protrusions forming the cutting edges, and with horizontal platforms for placing a flexible control element parallel to its other base, increases the possibility of sealing and It makes it possible to dismantle the assembly on sealed fittings in order to keep the flexible element of the control seal intact when the fittings are opened and the transport medium is illegally taken from the pipeline.

The implementation of a cylindrical body with through transverse grooves to accommodate a flexible control element and its conjugation with a horizontal platform for cutting the flexible control element, which allows the flexible control element to be cut when it is pinched between the cylindrical body and the knife, increases the reliability of the structure.

The presence of various forms of the central mounting hole at the knife expands the possibilities of using the proposed design.

Industrial applicability.

The claimed design of the sealing assembly contains parts that are widely used in pipeline valves, the manufacture of parts used in the construction of the assembly, and pilot tests determine, in the applicant's opinion, compliance with its criterion of “industrial applicability” (IA).

Claims

Claim.

1. The design of the sealing unit of the pipeline shut-off and shut-off and control valves, containing flexible control elements, a cylindrical body with openings made through with the possibility of passage of a flexible control element, characterized in that the cylindrical body is made in the form of a disk with a central hole and has through mounting holes, and the holes for the passage of the flexible control element are made in the form of through transverse grooves, the design further comprises a knife cylinder in the form of a disk with a diameter equal to the diameter of the central aperture of the cylindrical housing, equipped with bilateral vertical surface cutouts from one of its bases, made with ledges forming cutting edges, and with horizontal platforms for accommodating a flexible control element parallel to another base of the knife having a central mounting hole, with each surface cutouts, ledges and horizontal areas are mirrored each other.

2. The design of the assembly according to claim 1, characterized in that the central mounting hole of the knife has the shape of a square.

3. The design of the assembly according to claim 1, characterized in that the central mounting hole of the knife has the shape of a cylinder with removed flats.

4. The design of the assembly according to claim 1, characterized in that the central mounting hole of the knife has the shape of a cylinder with a key.

5. The design of the assembly according to claim 1, characterized in that the central mounting hole of the knife is in the form of a cylinder with two dowels located at an angle of 90 degrees.

6. The design of the assembly according to claim 1, characterized in that the central mounting hole of the knife has the shape of a cylinder with two dowels arranged diametrically.