RU2842958C1 - Dry detachable connection - Google Patents

Abstract

FIELD: mechanical engineering.

SUBSTANCE: present engineering solution relates to the field of pipeline transport, relates to quick-detachable connections, docking couplings. Technical solution of the invention is the development of a dry detachable connection consisting of an adapter having a flange with grooves and a body, in which there is a valve with product seal and axis, fitted on axis of spring with thrust against sleeve with axis sliding bushing installed in support, and a coupling having a housing with at least one handle and consisting of a stator and a rotor, where the latter has at least two rollers, a rotor cup, a ring and installed with support in rotor flange through spring disc with guides of rod, where rod on one side is connected with valve with product sealant, and on the other side has a housing in which roller half-axles are installed on each side, the latter move along the guides made on the rotor housing, wherein between stator and rotor, between rotor and disc there are seals, and between the coupling and the adapter there is a connecting seal, where the dry detachable connection has a key device consisting of at least one groove and a reciprocal protrusion, and guides on each side have sections made with angle α or α1, wherein the rotor is inserted into the stator and each has opposed grooves forming a ball raceway in which the balls are fitted, and between rotor and stator, and between rotor and disc there are sliding bushings, and the rollers are installed with a bearing on the rotor cup, wherein the latter is also installed in the housing of the roller half-axles, and the connecting seal is installed on the neck of the disc of the connecting coupling or inside the housing of the adapter.

EFFECT: solution is intended for connection and disconnection including those under pressure of pipelines, flexible hoses, tanks and containers, and is used in the design of articulated pipelines, hose lines of drain-filling plants, in cisterns and other containers for safe and environmentally responsible shipment of liquefied natural gas, compressed gas, LPG, gas condensate, stripping gases, oil, oil products, liquid chemical products and other liquid and gaseous products into tankers, railway cisterns, tank-trucks, during bunkering and fuelling of sea and river vessels, in aircraft and space rockets filling installations.

17 cl, 10 dwg

Description

Field of technology

This technical solution relates to the field of pipeline transport, concerns quick-release connections, coupling couplings and is intended for connecting and disconnecting pipelines, including those under pressure, flexible hoses, tanks and containers and is used in the design of articulated pipelines, hose lines of loading and unloading units, as part of tanks and other containers for the safe and environmentally responsible shipment of liquefied natural gas, compressed gas, LPG, gas condensate, boil-off gases, oil, petroleum products, liquid chemical products and other liquid and gaseous products in tankers, railway tanks, tank trucks, during bunkering and refueling of sea and river vessels, in refueling units for aircraft and space rockets.

State of the art

It is known from the state of the art that a dry detachable connection is and is considered as a separate nodal element of the design of hose installations, handling hoses for which special requirements are provided for operation, execution of a set of calculations, as well as requirements for testing and criteria for assessing the passage of tests.

A dry disconnect coupling with an improved disc seal is known (EP1041333 A2 dated 31.03.2000, IPC class F16L37/30, F16L37/3) intended for connecting one pipeline with a liquid product to another pipeline or tank with a liquid product to form a continuous flow path, said coupling comprises a container and a connecting element, each of which is attached to the corresponding pipeline or tank (container), wherein the connecting element has latches that, under the action of torsion springs, grip the rear (matching) surface of the "socket" flange (flange with container protrusions), which ensures the fastening and locking of the container and the connecting element together to ensure the connection and pumping of liquids. A disc valve is installed in each connecting element to seal the corresponding flow channel in it during disconnection. A container plate valve having an elastic ring sealing means on the sealing surface of the plate valve; the coupling body and the spool, as well as the receiver body and the spool, are provided with elastic ring sealing means at their joints, the coupling spool is self-aligning, the arrangement of the sealing means and the geometry of the coupling body and the spool, as well as the receiver body and the spool are such that there is a small gap between the two spools, due to which after disconnection only a minimum volume of liquid remains in the coupling. By turning the lever, the connector valve is moved by means of a crank and a link from the closed position to the open position, squeezing out the spring-loaded valve of the container connected by spring-loaded latches - the flow of liquid is ensured or by turning the lever back, the valves are closed and the flow is blocked.

The disadvantage of the known technical solution is that the coupling is connected using latches, the wear of which, as well as the places where the latches are installed on the rear mating surface of the "socket" flange due to friction, leads to a violation of the hermetic connection. Rotation of the shaft by the lever leads to wear of the seals of the latter, which leads to a loss of tightness.

A utility model of a quick-release dry connector connection is known (RU219410 U1 dated 30.12.2022, IPC class F16L 37/24) consisting of a nipple and a coupling. The nipple contains a housing, a plate valve with a spring and a stop. The coupling has a stepped ring, a valve with a drive mechanism including a handle, a bearing unit, a stop, half-axles, a wave spring and seals. The drive mechanism is equipped with stop bolts that engage with an annular groove made on the end of the nipple body mating with the coupling. Bronze inserts in the form of bushings are mounted in the stepped ring. At the same time, the bearing unit allows the coupling to rotate freely around the pipeline axis, which eliminates twisting of the pipeline sleeve during connection of the coupling to the nipple. The technical result is to increase the reliability of the product and ease of use. The specified technical solution is taken as a prototype.

The disadvantage of this technical solution is that the thrust bolts, when engaging with the nipple body and the thrust axle shaft, have friction, which leads to rapid wear of the nipple body, thrust bolts and axle shafts with the thrust, which can lead to play in the connection, loss of tightness and disconnection of the coupling with the nipple. In addition, the coupling or nipple in the connected state do not have locks that prevent arbitrary disconnection of the coupling during vibration or accidental contact with the coupling. In particular, accidental contact with the handle can lead to free rotation of the coupling around the pipeline axis, the thrust bolts will disengage on the nipple body, the coupling and nipple will be disconnected, while the nipple valve spring will block the flow, and the coupling valve will remain in the open position, which will lead to product leakage. The formula of the utility model and the description do not fully disclose how the coupling operates and in which part of the coupling the handle is installed, and paragraph 2 of the formula indicates that the coupling rotates freely around the pipeline axis due to the bearing unit, which, based on the formula, has no rotation restrictions and is not connected to the drive mechanism, since it is not mentioned in paragraph 1 of the formula. The bearing unit, as shown in Fig. 2 and 3, consists of at least four parts including a ball, while there is no information on how the tightness of the bearing unit is ensured, including from external precipitation, and how the installation and dismantling of the balls in the unit is ensured, and therefore all the components inside the coupling.

Tasks of the technical solution

The objective of the claimed technical solution is to develop a new dry detachable joint (hereinafter referred to as DDC), consisting of an adapter and a coupling sleeve for connecting and disconnecting pipelines, flexible hoses, tanks and containers, including those under pressure, for the safe and environmentally responsible shipment of liquefied natural gas, compressed gas, LPG, gas condensate, boil-off gases, oil, petroleum products, liquid chemical products and other liquid and gaseous products, ensuring simple and safe connection and disconnection of pipelines, flexible hoses, tanks and containers under pressure for the shipment of the transported product.

The SRS must be equipped with locks that prevent the adapter and coupling from being accidentally disconnected due to vibration or accidental contact with the coupling, and also reduce wear on the SRS mechanism and ensure the tightness of all coupling components.

In order to prevent accidental mixing of the product, a device - a key - must be provided in the mating part of the adapter and the coupling, preventing the connection of a "foreign" coupling intended for another product to the adapter.

An additional task of the developed adapter and coupling sleeve of dry detachable connection is to ensure technological manufacturing and a variety of design solutions during their manufacture in order to reduce the time of mechanical processing and reduce material waste during their processing.

The locking devices used in the claimed technical solution must be replaceable, easy to operate, with the ability to replace worn-out elements.

Disclosure of the essence of the technical solution

The technical solution to the above problem is solved by developing a dry detachable connection consisting of an adapter having a flange with grooves and a housing in which a valve with a product seal and an axis is installed, put on the axis by a spring with a stop in a sleeve with a sliding sleeve of the axis installed in the support

and a coupling sleeve having a housing with at least one handle and consisting of a stator and a rotor, where the latter has at least two rollers, a rotor cup, a ring and a disk with rod guides mounted with a stop against the rotor shelf through a spring, where the rod is connected on one side to a valve with a product seal, and on the other side has a housing in which roller half-axles are installed on each side, the latter move along guides made on the rotor housing, while seals are installed between the stator and the rotor, between the rotor and the disk, and a connecting seal is installed between the coupling sleeve and the adapter and is distinguished by the fact that

that the dry detachable connection has a device - a key, consisting of at least one groove and a counter projection, and the guides on each side have sections made with an angle of α or α1, while the rotor is inserted into the stator and each has grooves located opposite each other, forming a ball rolling track, in which the balls are installed, and between the rotor and the stator, and between the rotor and the disk, sliding bushings are installed, and the rollers are installed with a bearing on the rotor cup, while the latter is also installed in the housing of the roller semi-axles, and the connecting seal is installed on the neck of the disk of the coupling coupling or inside the housing of the adapter.

The specified technical solution ensures the use of a dry detachable connection (DDC) for connecting and disconnecting pipelines, flexible hoses, tanks and containers, including those under pressure, for the safe and environmentally responsible shipment of liquefied natural gas, compressed gas, LPG, gas condensate, boil-off gases, oil, petroleum products, liquid chemical products and other liquid and gaseous products.

The SRS includes sections on the guides that ensure counter-movement and the position of the roller axle shafts against the rotor housing stop on the guides, which prevent the adapter and coupling from being accidentally disconnected during vibration or accidental contact with the coupling, and also reduces the wear of the SRS mechanism by installing bearings, bushings and sliding guides, and ensures the tightness of all coupling and adapter assemblies.

In order to prevent accidental mixing of the product, a device is provided on the flange of the adapter and the coupling - a key that prevents the connection of a "foreign" coupling intended for another product to the adapter, which prevents a possible reaction from mixing products, including explosive ones, damage to the mechanisms of consumers of products and elements of the SRS, diseases, poisoning of humans and other living beings in the case of transportation of food products, and also prevents possible environmental disasters.

The technical solution of the adapter and the coupling sleeve of the dry detachable connection ensures the manufacturability of production and a variety of design solutions during their manufacture in order to reduce the time of mechanical processing and reduce material waste during their processing, as well as for use with various transported products.

The valves and other design elements used in the claimed technical solution are replaceable and easy to operate with the possibility of replacing worn elements.

A variant of the technical solution is possible, where the sections made with an angle of α or α1 in the extreme parts of the guide create a counter-run of the roller half-axles into the stop of the guide. The specified technical solution ensures the prevention of an arbitrary disconnection of the adapter and the coupling during vibration or accidental contact with the coupling. The pressure, the product flow, affect the valve, as a result of which the force acting on the valve, which is in the closed / open position of the coupling, can squeeze it out of the body and open the duct / close the flow, however, the sections made with angles of α or α1 in the extreme parts of the guide, under the influence of the reaction from the acting force from the pressure, flow or other effect, set the direction of movement of the roller half-axles into the stop of the rotor wall in the guides, that is, further movement of the roller half-axles, rod and valve is impossible, which ensures the prevention of depressurization or spontaneous disconnection of the coupling from the adapter. In this case, the angles α or α1 are determined, but not limited to, empirically or by calculation depending on the elasticity and travel of the spring.

A variant of the technical solution is possible, where the groove of the device - the key is made on the outer side from the end and through the flange of the adapter, and the mating projection is made on the inner side of the rotor cup, while the coaxiality and distance between the centers of the axes of the groove of the adapter flange, the roller of the coupling sleeve and, accordingly, the groove of the device - the key on the adapter and the mating projection on the rotor cup must be observed. The specified technical solution ensures the connection of the coupling and the adapter due to the coaxial groove and the mating projection and the coaxial grooves of the flange of the adapter and the roller of the coupling sleeve and ensures the impossibility of connecting the coupling and the adapter intended for different products, where the coaxiality between the specified elements is absent, which prevents a possible reaction from mixing products, damage to the mechanisms of consumers of products and elements of the SRS, diseases, poisoning of humans and other living beings in the case of transportation of food products, and also prevents possible environmental disasters.

A variant of the technical solution is possible, where the projection of the device - the key is made, but not limited to, a bolt or a bolt head or a nut fixing the bolt on the rotor cup. The specified technical solution ensures the manufacturability of the production and a variety of design solutions for the coupling coupling SRS in order to minimize long-term mechanical processing and large waste of material when processing the rotor of the coupling coupling SRS.

A possible technical solution is one in which the rotor groove and the stator groove are formed by radii, and the ball may have one or two contact points with each groove and is installed or removed from the raceway through a threaded hole on the stator, which is closed with a threaded plug. This technical solution provides a ball rolling groove and a movable connection between the stator and rotor relative to the axis of the coupling. Depending on the loads, the groove may be made with one point of contact of the ball, and if the loads are large, then with two points of contact per groove.

A variant of the technical solution is possible, where the ball raceway ensures rotation of the stator around the axis of the coupling coupling, and also ensures rotation of the rotor relative to the axis of the coupling coupling at an angle of rotation limited by the length of the guide stroke. The specified technical solution ensures the manufacturability of the coupling coupling without twisting the hose due to the rotation of the stator and the operability of the coupling coupling mechanism due to the rotation of the rotor at an angle of rotation limited by the guide along which the roller axle shafts move, setting in motion the rod and the valve, which, when connecting the coupling coupling to the adapter, squeezes the adapter valve into its body, ensuring the flow of the product.

A variant of the technical solution is possible, where a groove for installing a product seal is made along the circumference of the valve and, depending on the material of the product seal, the groove can be additionally equipped with a removable valve seat, which is attached to the valve with a fastener and tightly presses the product seal or without a groove and a product seal. The specified technical solution ensures manufacturability and a variety of design solutions in the manufacture of the coupling and the SRS adapter in order to minimize lengthy mechanical processing and large waste of material during valve processing. This technical solution allows installing a product seal on the valve in a groove. If the material of the product seal is rigid and does not stretch, for example polytetrafluoroethylene (PTFE), the product seal is installed on the valve in a groove with the valve seat removed and is pressed by the valve seat using bolts or in another way. In this case, the use of a valve without a groove and a product seal is not excluded, in this case, the sealing occurs according to the metal-to-metal scheme, i.e. The valve body is pressed with its metal surface against the sealing surface of the coupling or adapter, ensuring a hermetic seal of the pipeline.

A variant of the technical solution is possible, where the disk has a disk end on one side and is installed with the end in the rotor of the coupling coupling from the side of the rotor cup, and on the other side has a disk neck with the end of the neck and at least two teeth equidistant from each other along the circumference of the disk, which after the assembly of the coupling coupling should be under the rollers. The specified technical solution ensures the installation of the disk inside the rotor in such a way that the end of the disk stands on the spring inside the rotor, while the end of the disk neck is installed outside the coupling coupling and ensures the installation of the coupling seals and / or their hermetic fit, and the equally spaced teeth when connecting the coupling coupling to the adapter, after the rollers enter the grooves on the flange of the adapter and when the rotor rotates do not allow the disk to scroll behind the rotor, which ensures a hermetic SRS.

A variant of the technical solution is possible, where inside the adapter body and the neck of the coupling disk there is a sealing surface, providing a hermetic fit of the valve with a product seal installed on it or without it, if the latter is applicable depending on the transported product. The specified technical solution provides a hermetic fit of product seals or the valve itself, depending on the product, as well as manufacturing manufacturability and a variety of design solutions in the manufacture of bodies and valves in order to minimize long-term mechanical processing and large waste of material during processing, as well as options for sealing the SRS. It is possible that a metal-to-metal sealing scheme can be used, i.e. the valve body is pressed with a metal surface to the sealing surface on the body, providing a hermetic closure of the pipeline.

A variant of the technical solution is possible, where the sliding bushings are made of a material that ensures sliding with rotation around the rotor axis relative to the stator and the rotor relative to the disk without distortions, and are installed in grooves made along the circumference in the first case on the rotor, and in the second case on the disk, but not limited to. The specified technical solution ensures the mobility of the rotor and stator with rotation relative to the axis of the coupling and the rotor relative to the disk without distortions, which significantly reduces the likelihood of depressurization.

A variant of the technical solution is possible, where the roller bearing is, but is not limited to, a plain bearing or a bushing made of a material that provides for a reduction in friction during rotation of the rollers, which, when the coupling sleeve is connected to the adapter, pass through the groove of the adapter flange and, with subsequent rotation of the rotor clockwise using the handles, engage with the inner surface of the adapter flange by rotating the roller along the surface, providing for the connection of the coupling sleeve to the adapter, wherein the roller with the bearing is installed on the rotor cup with a bolt or screw or stud, but is not limited to, with fixation from unscrewing, preferably with a nut, and the bearing can be a roller. The specified technical solution ensures less wear of parts subject to rotation and friction, which also ensures a reduction in the force for installing the coupling sleeve on the adapter and ensures the operation of the entire coupling sleeve mechanism due to the fact that the rollers pass into the groove of the adapter flange during connection, the neck of the disk enters inside the adapter flange, ensuring the adhesion of the connecting seals, the teeth of the disk engage with the grooves on the adapter flange, preventing its rotation, the operator starts to rotate the rotor of the coupling sleeve relative to its axis using the handles, the rollers rotate and pass along the inner surface of the adapter flange, ensuring a rigid connection, and the roller axes begin to move along the guides on the rotor, set in motion the rod, which extends along the guides and opens the valve, which in turn extends the adapter valve inside the housing, the flow of the transported product is ensured. The disconnection of the SRS occurs in the reverse order, due to the operator rotating the handles counterclockwise.

A variant of the technical solution is possible, where the bearing installed in the housing is, but is not limited to, a plain bearing or a bushing, which are made of a material that ensures the reduction of friction of the roller axle shafts, which, when the coupling coupling is connected to the adapter and the rotor is subsequently turned clockwise using the handles, begin to move with rotation along the rotor guides and set the rod in translational motion, which, moving along the disk guides, sets the coupling coupling valve in translational motion, which rests against the adapter valve and with a translational motion squeezes it into the adapter housing, compressing the spring and ensuring the flow of the transported product. The specified technical solution ensures the operation of the coupling coupling mechanism and the adapter, providing SRS, as well as less wear of parts subject to rotation and friction, which also ensures a reduction in the force for installing the coupling coupling on the adapter.

A technical solution variant is possible, where the adapter flange is removable and is attached with fasteners to the adapter body through a seal or can be made as one part with the adapter body. The specified technical solution ensures manufacturability of production and a variety of design solutions in the manufacture of the adapter in order to minimize long-term mechanical processing and large waste of material when processing the adapter body. Applicable, but not limited to, for large diameters, as well as for the possibility of installing a valve and other elements of the mechanism on the side of the removable flange.

A variant of the technical solution is possible, where the connecting seal is installed in a groove made on the outside of the neck or on the end of the disk neck or in front of the projection with the sealing surface inside the adapter body, while the location of the groove and installation of the seal is determined depending on the transported product, material and shape of the seal. The specified technical solution ensures manufacturability of production and a variety of design solutions in the manufacture of the coupling and adapter and is used depending on the pumped products, but not limited to. For example, but not limited to, for cryogenic products, a "U" or "V" shaped seal is installed - a spring-loaded cuff that can be installed in a groove on the adapter in front of the projection with the sealing surface of the adapter and works with the end of the disk neck, pressing against it with a tendril, providing tightness, or for the shipment of oil or other "warm" products, an "O" shaped seal can be used, which is installed in a groove on the neck or end of the disk neck.

A variant of the technical solution is possible, where the device - key is an actuator for safe use of a dry detachable connection by combining a groove with a mating projection of the device - key, excluding the connection of the adapter with a coupling sleeve used for other products and in the event that the device - key is not required, the connection can be used without the device - key, and the adapter and coupling sleeve are manufactured, respectively, without a groove and a mating projection of the device - key. The specified technical solution provides variants of using the SRS and manufacturing a coupling sleeve and adapter for cases when protection against mixing of products is required or when this is not necessary, for example, only one type of product is shipped, i.e. the SRS can be used with an adapter and coupling sleeve manufactured, respectively, without a groove and a mating projection. In the event that the projection of the device - the key is removable, for example, implemented in the form of a threaded screw or bolt, if necessary, it can be unscrewed and the coupling can be used with a "foreign" adapter without restrictions, and in the event of a repeated need to use the coupling only for "your" product and adapter, the screw can be screwed back into its original position. In the event that the option of replacing couplings with "foreign" adapters is prohibited, then the projection of the device - the key can be integral with the body, for example, but not limited to, the screw is installed on the rotor cup and fixed using welding.

A variant of the technical solution is possible, where the spring of the coupling is, but is not limited to, wave or disc and is installed preferably between two washers on the rotor shelf on one side and on the end of the disk on the other side and ensures the pressing of the coupling seal, and also compensates by stretching or compressing the movement of the roller half-axles when turning the rotor by the handles at the extreme points Smax and on the guide sections formed with an angle of α or α1. The specified technical solution ensures the operation of the SRS mechanism, ensuring the pressing of the coupling and product seals, the tension stroke of the roller half-axles and the entire mechanism of the coupling valve on the extreme parts of the section with angles of α or α1 and at the Smax points of the guide.

A technical solution variant is possible, where the handles are installed on the rotor and have the form, but not limited to, of straight handles or a curved bracket, or a steering wheel, can be removable and attached using fasteners. The specified technical solution ensures manufacturing technology and a variety of design solutions in the manufacture of the coupling.

A variant of the technical solution is possible, where the support is removable, but not limited to, provides for dismantling or mounting of the valve in the adapter with a spring put on the axle, a spring stop sleeve with an axle sliding sleeve and is attached to the adapter body, preferably with a fastening element, while inside the adapter body on the opposite side from the flange, fastening lugs, grooves and/or threads are made, respectively, at the ends of the support there are mating surfaces for installing the support in the adapter body. The specified technical solution ensures manufacturability of production and a variety of design solutions in the manufacture of the adapter.

A variant of the technical solution is possible, where the spring stop sleeve with the sliding bushing is, but is not limited to, one part. The specified technical solution provides options for manufacturing the part depending on the type of product and its temperature, for example, for products with a cryogenic temperature, the part is made of two elements: a spring stop sleeve and a sliding bushing, while the latter is made of polytetrafluoroethylene (PTFE) or another material with similar properties, otherwise there is a risk of freezing the valve axis to the bushing at a cryogenic temperature, which will lead to loss of operability of the SRS. At the same time, for other operating conditions and the transported product, the spring stop sleeve with the sliding bushing can be made of one part, for example, from bronze.

A possible technical solution is one in which the rod guides are made of a material that ensures the rod slides and are installed in the guide grooves made opposite each other inside the disk body, and the rod is connected to the valve by an axle or a pin, but not limited to. This technical solution ensures reduced friction and less wear of parts, as well as the operation of the entire SRS mechanism, ensuring translational movement without distortions and rotations of the rod inside the disk, which opens or closes the valve.

A possible technical solution is one in which the disk, when connecting the coupling with the adapter, engages with the teeth located on its body with the grooves of the adapter flange and does not rotate around the axis of the coupling when the rotor is rotated by the handles. This technical solution ensures a tight fit of the coupling seals to the neck of the disk without turning or distorting the latter, which can lead to depressurization, and also ensures the operation of the entire SRS mechanism, where the disk must remain in place without turning, the rotor must rotate relative to the disk, and the rod and valve must perform translational movement inside the disk, ensuring the flow or blocking of the product flow.

A technical solution is possible where the ring is installed on the rotor cup and protects the coupling from impacts and damage and, depending on the transported product, its temperature and operating conditions, the coupling can be used without the ring. Considering that the shockproof ring material becomes brittle or susceptible to the product impact at cryogenic temperatures or other properties of the product, which makes its use impractical, the coupling can be used without the shockproof ring.

A variant of the technical solution is possible, where the body of the coupling sleeve and the body of the adapter have a cylindrical shape, while on the stator of the coupling sleeve and the body of the adapter on the opposite side from the flange there are pipeline connectors, which can be, but are not limited to, flanged or threaded, while the adapter can be installed on the body of the tank. The specified technical solution provides a variety of design solutions in the manufacture of the coupling sleeve and adapter, ensures their installation on the pipeline or hose, and for the adapter additionally on the body of the tank, where the pipeline connectors can be flanges or a threaded connection.

A possible technical solution is one in which the rotor shelf is made inside the rotor in such a way that it is located between the guide on one side and the disk with a spring and two washers installed inside the rotor so as to form a gap between the disk teeth and the rollers, which is necessary for the roller to rotate. This technical solution ensures the correct balanced arrangement, dimensions and geometry of the design elements of the coupling mechanism.

A technical solution variant is possible, where the fastening element is, but is not limited to, a screw, a countersunk bolt, a threaded connection or a locking ring. The specified technical solution ensures manufacturing manufacturability and a variety of design solutions in the manufacture of the coupling and adapter.

A variant of the technical solution is possible, where the transported product is: liquefied natural gas, gas condensate, compressed gas, boil-off gas, oil, oil products, liquid chemical products and other liquid, gaseous and fluid products with different temperatures. The specified technical solution provides the possibility of using the SRS depending on the material design with various liquid, gaseous or fluid products.

Brief list of drawings

Fig. 1. A dry detachable connection (DDC) is shown, the coupling sleeve is connected to the adapter;

Fig. 2 shows a section of the SRS coupling and adapter assembly, the duct is open;

Fig. 3 shows a section of the coupling and adapter in a disconnected state, the flow is closed;

Fig. 4 shows the adapter;

Fig. 5 shows the adapter flange;

Fig. 6 shows view A (Fig. 3) with a ball raceway and seals;

Fig. 7 shows a rotor;

Fig. 8 shows a guide;

Fig. 9 shows a disk;

Fig. 10 shows a device – a key.

Pos. 1 – coupling sleeve;

Pos. 1.1 - coupling housing;

Pos. 2 – adapter;

Pos. 2.1 - adapter body;

Pos. 3 – coupling pipe connector (options: flanged or threaded);

Pos. 4 – connector of pipelines or adapter containers (options: flanged or threaded);

Pos. 5 – handles;

Pos. 6 – coupling valve;

Pos. 7 – rotor;

Pos. 8 – stator;

Pos. 9 – disk;

Pos. 10 – roller installation bolt 11;

Pos. 10.1 – hole for installing the bolt for the roller;

Pos. 11 – roller;

Pos. 12 – rod;

Pos. 13 – roller axle shaft;

Pos. 13.1 – housing (roller axle shafts);

Pos. 13.2 – bearing (sleeve);

Pos. 14 – guide;

Pos. 15 – sliding bushing;

Pos. 15.1 – sliding bushing;

Item 16 – threaded plug;

Pos. 17 – balls;

Pos. 17.1 – ball rolling groove on the rotor;

Pos. 17.2 – ball rolling groove on the stator;

Pos. 18 – connecting seal;

Pos. 18.1 – groove on the adapter (connecting seal 18);

Item 18.2 – groove on the neck of the disk (connecting seal 18), shown conditionally;

Pos. 19 – adapter valve;

Pos. 19.1 - valve axis;

Pos. 20 – spring;

Pos. 21 – sleeve;

Pos. 22 – axle sliding sleeve;

Pos. 23 – support;

Pos. 24 – washer;

Pos. 25 – wave spring;

Item 26 – seal (wiper);

Item 27 – seal (disk and rotor);

Item 28 – seal (rotor and stator);

Pos. 29 – fastening element;

Pos. 29.1 – fastening lugs;

Item 30 – product seal (coupling valve);

Item 30.1 - product seal (adapter valve);

Item 31 – removable valve seat;

Pos. 32 – flange;

Pos. 33 – groove;

Pos. 34 – bayonet groove;

Pos. 35 – ring;

Pos. 36 - pin;

Pos. 37 – guide;

Item 38 - sealing surface of the coupling;

Item 38.1 - sealing surface of the adapter;

Item 38.2 – protrusion with sealing surface of the adapter;

Pos. 39 - device – key;

Pos. 40 – key device groove;

Pos. 41 – projection of the key device;

Pos. 41.1 screw (protrusion of the device - key);

Pos. 42 – neck;

Pos. 43 – teeth;

Pos. 44 – section of guide with angle α;

Pos. 45 – section of guide with angle α1;

Pos. 46 – rotor cup;

Pos. 47 – rotor shelf;

Pos. 48 – disc end;

Pos. 49 – end of the disk neck;

Pos. 50 – guide groove.

Pos. Sработа - amplitude of the working stroke length of roller axle shafts 13;

Pos. Smax - amplitudes of extreme points of travel of roller axle shafts 13.

Implementation of technical solutions

In the technical solution, the following concepts are understood under the terms used:

The transported product includes, but is not limited to, liquefied natural gas, compressed gas, LPG, gas condensate, boil-off gas, oil, light and dark petroleum products, liquid chemical product, and other liquid, gaseous and flowing products with various temperatures.

Dry detachable connection (DDC) is a device consisting of two locking devices, a coupling sleeve and an adapter (bayonet connection), providing safe and quick connection or disconnection of discharge pipelines from tank manifolds in a safe manner without the use of bolts by rotating the housing part (rotor) of the coupling sleeve.

The articulated pipeline of the loading and unloading unit is, but is not limited to, the design of a hose unloading unit, loading arms, various loading, loading, reloading sleeves, manipulators, hose sleeves, loading levers for unloading the transported product into tankers or other floating craft at oil, chemical, gas terminals of sea and river ports, at sea between floating craft, at railway and automobile unloading points into railway and automobile tankers.

A pipeline is a structure made of solid or flexible pipes (flexible sleeve, hose) connected to each other, used to transmit liquid or gaseous products over a distance.

The claimed technical solution of a dry detachable connection, shown in Fig. 1 - 10, has a coupling sleeve 1 and an adapter 2, in each of which there are shut-off devices in the form of a valve 6 and 19, respectively, of the coupling sleeve 1 and the adapter 2.

The rotary coupling 1 has a housing 1.1 of cylindrical shape, consisting of a rotor 7, a stator 8 with a pipeline connector with a flange or threaded connection 3 on one side and a disk 9 with teeth 43, installed in the rotor on the other side. The disk 9 has an internal sealing surface 38, mated with a product seal 30, installed on the valve 6 of the coupling, thus ensuring a hermetic closure of the pipeline when the valve is closed. Valve 6 is mounted by means of pin 36 on rod 12, which is mounted in guides 37 made of polytetrafluoroethylene (PTFE), bronze or other material that provides friction reduction during sliding of rod 12 in guides 37 mounted opposite each other on disk 9. On the opposite side from valve 6, rod has housing 13.1 of cylindrical shape of roller half-axles, in which bearing 13.2 bushing made of polytetrafluoroethylene (PTFE), bronze or other material is mounted, providing friction reduction during rotation of two roller half-axles 13 mounted in the housing, each of which engages with guides 14 located on rotor housing 7. During assembly, rotor 7 with pre-installed sliding bushing 15 is mounted in stator 8 in such a way that the rolling groove of balls on rotor is aligned 17.1 with a ball rolling groove on the stator 17.2. forming a ball rolling track. Balls 17 are installed in the ball rolling track through an opening on the stator, closed by a threaded plug 16. After installing the balls, the rotor is secured to the stator. The disk 9 is installed inside the rotor with a pre-installed seal 27, a sliding sleeve 15.1 made of PTFE or another material and a valve 6 with a pre-installed product seal 30 on one side, and on the other side it rests with the end of the disk 48 against the shelf of the rotor 47 through a wave spring 25 installed between two washers 24. In order to prevent the lubricant from leaking out and the transported product from getting into the ball raceway and depressurizing the coupling, a seal 28 is installed between the rotor and the stator. The wiper seal 26 is designed to protect the cavity between the rotor and the stator, the ball raceway from the ingress of the external environment and dirt. The seal 27 is designed to seal the cavity between the rotor and the disk 9 from the release of the transported product. For operation of the coupling, a bayonet connection is provided between the coupling itself and the mating adapter 2, to reduce friction and wear of the mating parts of the adapter and the coupling, rollers 11 are provided on the rotor 7 of the coupling, which are mounted on an axis, the role of which is played by a bolt 10 for installing rollers with a locking nut and installed in the hole for installing the bolt for roller 10.1. For convenient operation of the operator, handles 5 or a steering wheel with handles are installed on the coupling.

The guides 14 are made identically and are located on opposite sides of the rotor cylinder 7, so that if the conventional axis of the rotor, which has a cylindrical shape, is in a vertical position, then the conventional horizontal axis passing through the center of two roller half-axles 13 located opposite each other will be perpendicular at any point of the guides 14 to the vertical conventional axis of the rotor cylinder. In this case, on each side of the guide, there are guide sections with an angle of α and α1, which ensures opposite inclined movement on the conventional initial/final sections relative to the inclination of the stroke along the main part of the guide with the final stop. In this case, the amplitude Swork of the working length of the roller stroke of the half-axle 13 will be less than the amplitude of the extreme points Smax, which are intermediate points of the working length of the roller stroke of the half-axle. The specified counter-flow sections of the guide with angles α and α1 are necessary so that the valve does not open from the closed position under internal pressure and possible vibration, while the roller axle shafts, being at the extreme points of the guide with an angle α, receive a reaction force that forces them to move in the opposite direction from the main surface of the guide and thereby rest against the rotor body. To get out of this position, it is necessary to pass through the point Smax and overcome the force of the disk spring. When the valve is open and is affected by the product flow and possible vibration, which can lead to the valve closing, the presence of a counter-flow section with an angle α1, in the same way as described above, prevents the valve from closing.

Adapter 2 has a cylindrical body 2.1 with a pipeline connector 4 with a flange or threaded connection, valve 19 has a valve axis 19.1, which is installed in support 23 with preliminary installation on the axis of spring 20 with a spring stop on valve 19 - on one side and on the other side with a spring stop in sleeve 21. Sliding of valve axis 19.1 relative to sleeve and support 23 is ensured by axis sliding bushing 22, which can be made with sleeve 21 as one whole element or, depending on the product, a separate structural element, for example, from PTFE or an analogue. In this case, support 23 is removable and is preferably installed on fastening lugs 29.1 on body 2.1 of adapter using fastening elements 29. On the opposite side of pipeline connector 4 of adapter 2 there is flange 32 with grooves 33 and bayonet groove 34 on the back side of the mating flange.

On the valve 6 and 19, respectively, of the coupling and the adapter, a product seal of the valve 30 and 30.1, respectively, of the coupling and the adapter is installed, which, depending on the material and form of execution, is installed in the groove on the valve or pressed by the removable valve seat 31 with fastening along the circumference of the valve by the fastening element 29. In the case of the adapter, the valve 19 with the product seal 30.1 of the valve under the action of the spring 20 are tightly pressed against the sealing surface of the adapter 38.1 of the housing protrusion, providing a hermetic seal.

The tightness of the connection between the coupling 1 and the adapter 2 is ensured by the connecting seal 18, which, depending on the product, the temperature of the product and the external environment, can be installed in the groove 18.1 on the adapter or in the groove 18.2 on the neck 42 or the end 49 of the neck of the disk 9 of the coupling 1.

The operator, holding the coupling by the handles 5 or the steering wheel, connects the coupling to the adapter in such a way that the roller 11 enters the groove 33. By turning the handles clockwise, fixed on the rotor, the rollers 11 rotate along the inner side of the flange 32 of the adapter while being in the bayonet groove 34, ensuring a rigid bayonet connection. The neck 42 of the disk 9, which is spring-loaded by the wave spring 25, enters the adapter 2 and is pressed against the connecting seal 18, which ensures a hermetic connection of the coupling sleeve and the adapter, wherein the teeth 43 located on the disk 9 engage with the grooves 33 on the flange 32, which prevents the rotation of the disk 9 when the rotor 7 rotates. In this case, the rotation of the rotor 7 sets in motion the roller half-axles 13, which engage with the guides 14 and move along the guides, setting in motion the rod 12, which slides along the guides 37, pushing the valve 6 of the coupling sleeve beyond the neck 42 of the disk 9, which, when the coupling sleeve is connected to the adapter, rests against the valve 19 of the adapter, squeezing it into the inside of the adapter, thereby ensuring the flow of the transported product.

To disconnect the coupling from the adapter, the operator turns the handles counterclockwise, which rotate the rotor, setting in motion, due to the guides 14, the roller half-axles 13, which, moving in the opposite direction, come out of the stop with the rotor body on the section 45 of the guide with an angle α1, set in motion the rod 12 and the valve 6 of the coupling itself, which closes the flow of the transported product, while the valve 19 of the adapter, spring-loaded by the spring 20, returns to the position in which the tightness of the adapter is ensured. Moving along guides 14, roller half-axles 13 enter section 44 of the guide with an angle α and thereby rest against the rotor body, preventing spontaneous opening of valve 6. With further movement of the handles, rollers 11 disengage from the reverse side of flange 32 of the adapter and exit through groove 33 - thus the coupling sleeve is disconnected from the adapter.

The dry detachable connection is provided with a device - key 39, as shown in Fig. 10, preventing the connection of the coupling to a "foreign" adapter. Considering that at the loading terminals, several products are loaded along different loading lines, which cannot be mixed, and the receiving tanks intended for the transportation or storage of the product are also designed for "their" product. In this case, all loading / receiving pipelines, hose lines, manifolds are usually located in one place, and in order not to accidentally mix up and connect the coupling of one product with an adapter intended for another product, which can lead to a dangerous overflow of incompatible products. The key device 39 has key device grooves 40 arranged along the outer circumference of the adapter flange 32 and corresponding counter projections 41 of the key device arranged on the inner part of the rotor 7. The number of counter grooves 40 and projections 41 can be from 1 to N, with the final number N being determined by the size of the grooves and counter projections and the dimensions (diameter) of the dry detachable connection, with the grooves and counter projections of the key device being arranged uniformly or unevenly along the circumference of the flange 32 and the rotor 7. The projection of the key device can be made, but not limited to, using a screw 41.1 fixed in an opening on the rotor 7, or made on the rotor 7 body by welding or as one piece with the rotor.

The device - key 39 operates as follows: the operator, holding the handles 5 or the steering wheel, connects the coupling with the adapter; if the groove 40 matches and the projection 41 of the device - key passes through it, further connection of the coupling with the adapter occurs, as described above; if the groove does not match the projection, then the coupling with the adapter cannot be connected; the roller 11 will not enter the groove 33 on the adapter flange.

To prevent deformation of the neck 42 and the rotor cup 46, a ring 35 can be installed on the latter, protecting the coupling from impacts.

The claimed technical solution, namely the SRS, ensures a hermetic connection of the pipeline, including a flexible sleeve (hose) with a coupling coupling with an adapter, which is installed on the opposite pipeline or tank.

The declared technical solution of the SRS allows its use in the design of hose unloading units, loading, loading, reloading sleeves (levers), articulated pipelines, manipulators, standers and other unloading and loading units for safe and environmentally responsible unloading of liquefied natural gas, compressed gas, LPG, gas condensate, boil-off gases, oil, oil products, liquid chemical products and other liquid and gaseous products. The SRS ensures simple operation with the possibility of replacing worn elements. The coupling locking devices are mechanically interlocked.

The options for installing product seals on the valve, connecting seals on the neck of the coupling disk or adapter provide easier production of the SRS and cost reduction. At the same time, the SRS, taking into account the described design options, does not reduce its consumer properties, and the availability of the option of using the SRS with a key device makes the use of the SRS safe and allows you to exclude mixing of different products in case of an accidental attempt to connect another pipeline.

Claims (21)

1. A dry detachable joint consisting of an adapter having a flange with grooves located on a cylindrical body with pipeline connectors, in which a valve with a product seal and an axis is installed, put on the axis by a spring with an emphasis in a sleeve with a sliding sleeve of the axis installed in a support, and a coupling with at least one handle and consisting of two cylindrical bodies, each of which is made with at least one ball rolling groove, wherein one body acts as a stator, and the other body - a rotor, wherein a rotor is inserted into the stator in such a way that on the outside there is a rotor cup with a preferably installed ring and at least two rollers located inside the rotor cup, wherein a disk with rod guides is installed in the rotor with an emphasis in the rotor shelf through a spring, where the rod is connected on one side to the valve with a product seal, and on the other side has a body in which roller half-axles are installed on each side, the latter move along guides made on the rotor housing, wherein seals are installed between the stator and the rotor, between the rotor and the disk, and a connecting seal is installed between the coupling and the adapter, and characterized in that the dry detachable connection preferably has a key device consisting of at least one groove and a counter projection, where the groove of the key device is made on the outer side from the end and through the flange of the adapter, and the counter projection is made on the inner side of the rotor cup, in this case, the guides on each side have sections made with an angle of α or α1, in the extreme parts of the guide, they create a counter-run of the roller axles against the guide stop; wherein the rotor is inserted into the stator in such a way that the groove located on the outer diameter of the rotor in front of the rotor cup is opposite the groove made inside the stator, and both grooves form a ball raceway into which the balls are installed through a threaded hole on the stator, which is closed with a threaded plug, and between the rotor and the stator, as well as between the rotor and the disk, sliding bushings are installed, and the rollers are installed on the rotor cup with a bearing, the latter is also installed in the housing of the roller axle shafts, and the connecting seal is installed on the neck of the coupling disk or inside the adapter housing, wherein the rotor shelf is made inside the rotor in such a way that it is located between the guide on one side and the disk with a spring and two washers installed inside the rotor, pressing the disk when connecting the coupling with the adapter, which engages with the teeth located on its body with the grooves of the adapter flange, and does not rotate around the axis of the coupling when the rotor is rotated by the handles. 2. A dry detachable connection according to paragraph 1, characterized in that the installed groove and the mating projection of the key device must be coaxial, taking into account the distance between the centers of the axes of the groove of the adapter flange and the roller of the coupling sleeve. 3. A dry detachable connection according to item 1 or 2, characterized in that the projection of the key device is made, but is not limited to, a bolt or a bolt head or a nut securing the bolt to the rotor cup. 4. A dry detachable connection according to paragraph 1, characterized in that the rotor groove and the stator groove are formed by radii, and the ball can have one or two points of contact with each groove. 5. A dry detachable connection according to item 1 or 4, characterized in that the ball raceway ensures rotation of the stator around the axis of the coupling, and also ensures rotation of the rotor relative to the axis of the coupling at an angle of rotation limited by the length of the guide stroke, ensuring connection and opening of the flow or disconnection of the coupling with blocking of the flow of the transported product. 6. A dry detachable connection according to paragraph 1, characterized in that the product seal is installed on the valve, but not limited to, using a removable valve seat, which is attached to the valve with a fastening element, or the product seal is the valve body. 7. A dry detachable connection according to item 1, characterized in that the disk has a disk end on one side and is installed with the end in the rotor of the coupling from the side of the rotor cup, and on the other side has a disk neck with the end of the neck and at least two teeth, equidistant from each other along the circumference of the disk, which after assembly of the coupling must be located under the rollers. 8. A dry detachable connection according to paragraph 1 or 6, characterized in that inside the adapter body and the neck of the coupling disk there is a sealing surface that ensures a hermetic fit of the valve with the product seal installed on it, which may also be the valve body, if the latter is applicable depending on the product being transported. 9. A dry detachable connection according to item 1, characterized in that the sliding bushings are made of a material that ensures sliding with rotation around the rotor axis relative to the stator and the rotor relative to the disk without distortion, and are installed in grooves made around the circumference in the first case on the rotor, and in the second case on the disk, but not limited to. 10. A dry detachable connection according to claim 1, characterized in that the bearing of the rollers is, but is not limited to, a plain bearing or a bushing made of a material that provides for a reduction in friction during rotation of the rollers, which, when the coupling sleeve is connected to the adapter, pass through the groove of the adapter flange and, with subsequent rotation of the rotor clockwise using the handles, engage with the inner surface of the adapter flange by rotating the roller along the surface, providing for the connection of the coupling sleeve to the adapter, wherein the roller with the bearing is installed on the rotor cup with a bolt, or screw, or stud, but not limited to, with fixation from loosening, preferably with a nut, and the bearing can be a roller. 11. A dry detachable connection according to claim 1, characterized in that the bearing installed in the housing is, but is not limited to, a plain bearing or a bushing, which are made of a material that ensures a reduction in friction of the roller axle shafts, which, when the coupling sleeve is connected to the adapter and the rotor is then turned clockwise using the handles, begin to move with rotation along the rotor guides and set the rod in translational motion, which, moving along the disk guides, sets the coupling sleeve valve in translational motion, which rests against the adapter valve and with a translational motion pushes it into the adapter housing, compressing the spring and ensuring the flow of the transported product. 12. A dry detachable connection according to item 1, characterized in that the adapter flange is preferably removable and is secured with fasteners to the adapter body through a seal, but not limited to. 13. A dry detachable connection according to item 1, or 2, or 3, characterized in that the key device is an actuator for the safe use of a dry detachable connection by aligning the groove with the mating projection of the key device, excluding the connection of the adapter with the coupling sleeve used for other products, and, if the key device is not required, the dry detachable connection may be without a key device, and the adapter and coupling sleeve are manufactured respectively without the groove and the mating projection of the key device. 14. A dry detachable connection according to item 1, characterized in that the spring of the coupling is, but is not limited to, wave or disc-shaped and is preferably installed between two washers on the rotor shelf on one side and on the end of the disk on the other side, and ensures the compression of the coupling seal, and also compensates for the movement of the roller half-axles by stretching or compressing when the rotor is turned by the handles at the extreme points Smax and on the sections of the guide formed with an angle of α or α1. 15. A dry detachable connection according to item 1, characterized in that the support is removable, but not limited to, it ensures the dismantling or installation of the valve in the adapter with a spring placed on the axle, a spring stop sleeve with an axle sliding sleeve and is attached to the adapter body, preferably with a fastening element, while inside the adapter body on the opposite side from the flange there are fastening lugs, grooves and/or threads, and correspondingly, at the ends of the support there are mating surfaces for installing the support in the adapter body. 16. A dry detachable connection according to paragraph 1 or 15, characterized in that the spring stop sleeve with the sliding sleeve is, but is not limited to, one part. 17. A dry detachable connection according to item 6, or 12, or 15, characterized in that the fastening element is, but is not limited to, a screw, a countersunk bolt, or a retaining ring.