Releasable leak-tight electric connector of wet contact type for electric connection of cable line in conductive medium
SUBSTANCE: releasable leak-tight electric connector of wet contact type is intended for electric connection of cable line in conductive medium. The connector consists of lower and upper parts; the upper part consist of a body, bellows with chamber filled with insulating fluid, contact group with required number of contacts, which is connected to a cable line by means of geophysical head and protective housing with pull-back spring and two-piece gripper, at that the two-piece gripper is placed in lower part of the body and cavity of the gripper is filled with insulating fluid. Lower part of the connector consists of the body with groove for two-piece gripper, wherein a block of contact rings is placed and the latter connect with a cable line by means of geophysical head, bellows with chamber filled with insulating fluid, protective housing leak-tight pressed by a spring and a rod with a groove for two-piece gripper. Sealing elements are installed between protective leak-tight housings and bodies of the upper and lower parts of the connector.
EFFECT: improving reliability of both electrical and mechanical leak-tight connection of the line, including connection at dual completion of oil wells.
The invention relates to electrical engineering and can be used for the connection of electric lines in the process of exploitation of oil wells for connection of electric valves and sensors controlling the operation of the reservoirs and well control in dual and sequential operation of several productive layers and interlayers and management of "smart wells" and in other cases requiring the connection of electric lines in a conductive medium. Known hermetic electrical connector (analog)  (copyright certificate №2320850 published 1980.30.12).
The connector includes a plug with pin contacts, placed in isolation, and centering sleeve telescopically covering the socket with the slots, the inner cavity of which is filled with insulating liquid and is closed from the junction of the elastic diaphragm, the node mutual fixing plugs and sockets, Elements of the angular orientation of the longitudinal groove and located in it the finger, made in centering the sleeve and in one of the parts of the connector and the power supply. which is provided with a cylindrical part, having a weight providing puncture the diaphragm pins, one end of which is fixed to the socket, the latter is connected with the conductor, on part of its length is placed in the cylindrical, Uzes� mutual fixation is made in the form of a fixedly mounted on the free portion of the current lead, opposite the outlet of the sleeve, on which is hinged a pair of shoulder levers pivotally connected with two shoulders levers, one ends of which are interconnected by a spring, while others interact with the annular projection formed on the inner surface of the centering sleeve, wherein the groove has a lead-in portion and formed on a cylindrical part, and the pin in the centering sleeve, wherein the insulating liquid has a density less than the density of the washing liquid, and the insulator plug is made of a hydrophobic material. The disadvantages of this solution are the possibility of ingress of well fluid into the internal cavity of the connector, resulting in contact failure of the connected parts of the Shoe, the inability to perform reconnection. Known cable connector (analog)  (US Patent No. 4570709, published in 1986), comprising a housing consisting of two parts (pin and socket) in which the contact elements. Contact elements made in the form of metal pins, mechanical connection which provides an electrical contact. Socket part of the connector is part of the housing of the geophysical instrument being lowered into the well on drill pipe. In operation, pin part of the connector is lowered into the well through the drill rough on wireline. At the junction of�VKE both parts of the connector electrical contacts are connected, providing electrical power blocks geophysical instrument and the passage of information from him by logging cable to the surface.
The disadvantage of this connector is the possibility of ingress of well fluid into the internal cavity of the connector that leads to the violation of the contacting parts of the connector.
Known cable connector for operation in a conductive medium (prototype)  (Patent RF 2260231 C1, published 10.09.2005), consisting of a pin and socket parts with contact elements and the membrane, characterized in that the socket part is formed as a cylindrical body, the inner cavity of which is made stepwise, with contacts made in the form of a resilient split rings, mounted on a flexible beam, elastic membrane, located from the junction with pin part, and a spring-loaded sealing ring mounted in the housing is movable, moreover, the internal cavity nesting parts filled with insulating fluid, the whip portion is cylindrical with a conical end, the diameter of the cylindrical part of the pin, the inner diameter of the sealing ring.
The disadvantages of this cable connector are insecurity pin part from the effects of borehole fluid, the absence of mechanical fixac�and connections, the limited scope of the use, inability to use in producing wells.
The object of the invention is to increase the standardization of applications sealed electrical connector electrical lines in conductive media, the reliable implementation of both electrical and mechanical connections, for the connection of electric lines in dual wells.
This object is achieved in that the releasable sealed electrical connector according to the "wet contact" is made of two parts - upper and lower.
Fig. 1 shows the structure of the detachable sealed electrical connector according to the "wet contact".
The upper part of the detachable sealed electrical connector according to the "wet contact" consists of a housing 5, a bellows or rubber or compensator piston 2 with chamber 3 is filled with an insulating liquid, the contact group 6 with the required number of contacts, which connect a cable line using geophysical instrument head or sealed inputs 1, sealed protective casing 7 with the return spring 4 and a collet gripper 8. In the bottom of the housing comprise a collet gripper 9, the cavity of which is filled insulating grease.
Ahh�I'm part of the detachable sealed electrical connector according to the "wet contact" consists of a sealed enclosure 14 with groove for collet gripper 15, which include a block of slip rings 11 with the required number of slip rings is connected to a cable line using geophysical instrument head or sealed inputs 18 and the bellows or rubber or compensator piston 17 with the chamber 16 filled with insulating liquid, sealed protective casing 12, pressed by means of spring 13, the rod 10 with the groove of the collet for gripping. For protection against ingress of well fluid between the sealed protective casings and housings of the upper and lower parts of the detachable sealed electrical connector according to the "wet contact" establish sealing elements.
While docked insulating grease in the cavity of the collet top "wet contact", displaces borehole fluid between the two parts of the separable sealed electrical connector according to the "wet contact", the upper part of the rod 10 the bottom of the "wet contact" is grasped by the collet 8 the upper part of the detachable sealed electrical connector according to the "wet contact", and there is a mechanical coupling of upper and lower separable parts sealed electrical connector according to the "wet contact". Further movement of the protective hermetic casing 12 to the lower rashemen�th sealed electrical connector according to the "wet contact" down and simultaneous movement of the protective pressure-tight casing 7 the upper part of the detachable sealed electrical connector according to the "wet contact" up. In the upper part of the detachable sealed electrical connector according to the "wet contact" occurs flow of insulating fluid in the bellows or rubber, or compensator piston 2 and the lower part of the detachable sealed electricalmechanical the type of "wet contact" in the bellows or rubber or compensator piston 17. Upon reaching the bottom, the extreme points and clutch collets 9 with the groove 15 of the housing 14 is the closure of the electrical contacts. If necessary disconnect for lifting equipment to repair the mechanism releasable sealed electrical connector according to the "wet contact" occurs in reverse order. First rusticoville collet 9, the rod 10 remains captured by the collet 8, sealed protective casing 12 the bottom of the "wet contact" under the action of the spring 13 moves upward, closing of the contact ring 11, and sealed protective casing 7 the upper part of the detachable sealed electrical connector according to the "wet contact" under the action of the spring 4 and the collet gripper 8 moves down, closing the contacts 6. While insulating the liquid from the bellows or rubber or piston compensators 2 and 17 flows into the chambers 3 and 16. When reaching the initial state of the upper and lower parts of the split g�medicinova electrical connector according to the "wet contact" and further rise occurs the separation of the collet gripper 8. The contact group of the upper and lower parts of the detachable sealed electrical connector according to the "wet contact" protected from the ingress of well fluid and ready for re-use.
Technological and technical result when using the sealed electrical connector according to the "wet contact" is achieved with the possibility of connection of electric lines in a conductive medium, including in wells with dual completion and production, and also due to the possibility of repeated disconnection and connection.
The economic effect from the use of the invention can be achieved by accelerating the repair and maintenance work, as the possibility of removing only part of the equipment.
1. Copyright certificate №2320850 published 1980.30.12.
2. Patent US No. 4570709, published in 1986.
3. Patent RF 2260231 C1, published 10.09.2005.
The device is releasably sealed electrical connector according to the "wet contact" for the electrical connection of the cable line in a conductive medium, wherein said detachable sealed electrical connector according to the "wet contact" is made of two parts - top and bottom, the upper part of the detachable sealed electrical connector according to the "wet to�of ntact" consists of a body, bellows with the chamber filled with insulating liquid, the contact group with the required number of contacts, which connect a cable line using geophysical instrument head, sealed protective casing with a return spring and a collet grip the bottom of the housing comprise a collet gripper, which fills the cavity of the insulating lubricant, and the lower part of the detachable sealed electrical connector according to the "wet contact" consists of a sealed enclosure with the collet groove for engagement, which include block slip rings, with the requisite number of slip rings is connected to a cable line using geophysical instrument head, bellows with the chamber filled with insulating liquid, sealed protective casing, pressed by means of spring terminal with the collet groove for engagement, and for protection against ingress of well fluid between the sealed protective casings and housings of the upper and lower parts of the detachable sealed electrical connector according to the "wet contact" establish sealing elements.
SUBSTANCE: invention is related to electrical contact coupling for tracked vehicles, in particular, for railway vehicles. The contact coupling consists of a body (1), a protective hinged cover (4), and a sealing gasket (3). In the body (1) there is an opening (2) made at end surface of the body. The protective hinged cover is pinned to the body (1) so that it can be rotated in regard to the fixed axis of rotation. The sealing gasket has the upper sealing area (3a) parallel to the axis of rotation and the lower sealing area (3b) continued in parallel to the axis of rotation. The section of contact area interacting with the upper sealing area (3a) in the closed position of the cover is made as sealing surface (5a) and oriented perpendicular to the end surface. The section of contact area interacting with the lower sealing area (3b) in the closed position of the cover is made as sealing surface (5b) and oriented in parallel to the end surface.
EFFECT: improvement of sealing.
16 cl, 12 dwg
FIELD: electrical engineering.
SUBSTANCE: sealed electric connector contains a cable terminal, a receptacle, a swivel nut and two bushings with conic surfaces for fixation of the logging cable armature; the cable terminal is designed to be composite, consisting of an upper and a lower bodies, thread-connected. The swivel nut and the two bushings with conic surfaces are attached in the upper body upper part wherein boring is done for installation of a thrust washer and sealing elements. On the external conic bushing a facet is made, the thrust washer made of a metal less hard than the cable armature wire. In the lower body an insulator-confined contact is positioned whereon the bushing is fitted that protects against breakdown and serves as the support assimilating the force of coupling with the receptacle. The socket is designed to be removable and represents a body wherein a female contact and a shank are pressed-in, on one side and on the other side respectively, the contact and the shank forming a sealed lead-in. The bushing, insulator and sealed lead-in are interfaced in a stepped manner. The receptacles is mechanically connected to the body with the help of the swivel nut.
EFFECT: invention ensures high tightness of the connector under high pressure.
2 cl, 2 dwg
SUBSTANCE: tip for electrical connection contains sleeve (2) with cavity (9) partially filled with contact lubrication meant for introduction of electric cable (22) end in it and containing section (5) of crimping designed with possibility of its radial deforming. End includes also a plug (15) meant for confinement of contact lubrication (14) in cavity (9). Plug (15) has transverse membrane (16) designed with possibility of its destruction by electric cable (22) when it is being inserted in cavity (9). Plug (15) is at least one section located inside section (5) of crimping. Contact lubrication (14) is located between bottom part (12) of cavity (9) and membrane (16). Connection method includes a stage at which transverse membrane (16) is destroyed by end of electric cable (22) when it is being inserted in cavity (9).
EFFECT: improving airtightness of electrical connection after its crimping.
16 cl, 11 dwg
SUBSTANCE: device is vertically fixed to a compressor or a pump for pumping of a condensate gas and/or liquid or to an inlet/outlet of a transformer. The device comprises an input unit to supply power through it to a compressor or a pump electric motor or to an inlet/outlet of a transformer; a funnel-shaped body with a body chamber, besides, the input unit is installed on the upper end of the chamber; a grid arranged across the longitudinal axis of the chamber, besides, the input unit is arranged above the grid, a filter arranged in a chamber under the grid and above the input hole into the electric motor body or the input/output hole of the transformer body, and also a metering unit passing inside the chamber from the input unit in direction towards the grid, but arranged at a certain distance from the grid.
EFFECT: higher stability of functioning, durability of a compressor or a pump and its electric motor.
34 cl, 10 dwg
SUBSTANCE: electric connector consists of a plug receptacle (1) with male contacts positioned (31) within its cavity and movable plug head (2) with female contacts (32) for electric conductors ends connection (25, 26). For fixation of the plug head in the plug receptacle with form closure a shape lock ring is applied that is fitted, with part of its cross section, into the plug head groove passing along the perimeter; during the electric connector locking the ring engages, with the rest of its cross section, into the groove arranged on the inner side surface of the plug receptacle. The shape of the lock ring and the grooves as well as the lock ring material are such that the plug head (2) is taken out of the plug receptacle (1) only by a pull force in excess of a certain threshold value. The plug head (2), connected in the same way, is fixed with its end in the congruent end of the plug movable body (3) with form closure ensured by the fixture ring (4). The force enabling the plug head taking out of the plug receptacle is less than the force retaining the plug head in the plug body with fixture ring connection.
EFFECT: detachable plug performing its function without damage to the plug.
4 cl, 2 dwg
SUBSTANCE: in the demountable vacuum electrical connector the first and the third splits, mounted on a board with current-conducting paths, form an extension board rigidly installed on stands inside the flange. A groove is formed on the whole perimetre of the first hollow inside the flange, along the lower ridge of the side wall. The inner hollow of the flange with the extension board, above the level of recesses in the first split electric contacts is filled with a sealant. On the third body of the third split a cover is placed attached on the stands and the flange. Lobes with holes are arranged on the flange outside, on its sides. A pad for the tightening element fixation is envisaged on the flange surface around the first split. The connector counterpart is made on the plate of the appliance being sealed and includes a depression for the tightening element, mounting holes for the flange and the second split installed in the depression.
EFFECT: expanded field and enhanced efficiency of usage of unsealed standard multipin splits based on application of a demountable vacuum electric connector for physical appliances sealing.
8 cl, 6 dwg
SUBSTANCE: subject of this invention is an electric connection slot comprising a plug (10), equipped with primary contacts (20), and a base (12), equipped with secondary contacts (24), made as capable of interaction with the primary contacts. The connection slot additionally comprises a valve (30), fixed on the base and arranged as capable of rotation between the closed position, in which it closes access to secondary contacts (24), and the open position, in which it opens access to the secondary contacts to provide for connection of the plug with the base, and a circular coupling (40), fixed on an electric cable (14), connected to the plug (10), and made as capable of movement between two extreme positions: the lower position, in which it closes the valve (30), when the plug and the base are connected, and the upper position, in which it opens access to the plug.
EFFECT: increased reliability and service life, due to prevention of ingress of contaminating foreign matters, such as liquids or dust, into the slot base.
9 cl, 9 dwg
FIELD: electrical engineering.
SUBSTANCE: invention refers to the connecting nodes for connection of electric power cable (1) to the submarine pipeline (8) and/or disconnecting from it, in particular, for direct electric heating. Connective node contains envelope conical member (6) connected to the connective plate (2) on the surface of pipeline (8), reverse enveloped conical member (5) fixed on the end of power cable (1) and screw tightening device (70) for contact between envelope conical member (6) and enveloped conical member (5). Tightening device (70) includes first rod element (7) mage with possibility of entering the first socket (16) of envelope conical element (6) having the hole directed against the direction of the cone (12) of envelope conical element (6) and serving for location of first rod element (7) with first rod element (7) having tightening screw (7a), inner end (7c) of which is manufactured with possibility of contact with enveloped conical element (5) and outer end (7b) is available for connection and disconnection operations.
EFFECT: quick and safe connection of the cable to the pipeline and/or its disconnection.
11 cl, 2 dwg
FIELD: electrical engineering.
SUBSTANCE: connector assembly for connection of first and second conductors comprise base with section to accommodate first and second insert terminals and flap cap pivoted to case to cover said section. Cap has main part, section retaining conductors, and retainer. Section retaining conductors incorporates first and second conductor holders each intended for retaining and leveling relevant conductor relative to aforesaid base required for connecting electric conductor to retaining section of relevant insert terminal in closing proposed cap. Conductor holder clamping force is lower than that of insert terminal. Retainer allows securing cap to case with cap on closed position. In changing said in open position, first and second conductors are retained by first and second insert terminals on being released from first and second holders.
EFFECT: ease of use and proper connection.
15 cl, 26 dwg
SUBSTANCE: submerged electric connector consists of coaxial socket and plug. Connector consists of coaxial socket and plug. Current-carrying thin-wall cylinders of connector are made in the form of shells entering each other, into the bottom of which central pins electrically connected to bottom are mounted. Inductance coils are arranged inside shells between cylinders and central pins on ferrite rings and connected to source and receiver of signal. When in closed position, both halves of connector represent short-circuited turn through which transformer connection between inductance coils of instrument and diving parts is performed.
EFFECT: increasing efficiency coefficient of connector and providing the possibility of using the connector in multiple-channel devices of transfer of electric energy from full electric isolation between channels at their close location irrespective of the fact whether halves of connectors are open or closed.
FIELD: plug connectors for cables of subsurface workings of mines.
SUBSTANCE: proposed cable-terminating plug forms hollow plug socket of brass whose hollow section on cable end forms cable entry hole and has supporting collar that functions to support male connecting member projection in axial direction. Cable entry hole is provided with inner thread for turning in metal tetrahedron that has through hole for cable entry. Cable screen or armor can be placed between through hole and cable sheath to ensure adequate grounding of cable and cable plug. Inner space of plug socket is sealed by means of shaped part molded on cable sheath, on plug socket, and on polyhedron. Shaped part is also used for securing cable in axial direction on plug socket.
EFFECT: ability of long-time service in damp media due to reliable sealing attained by simple means.
13 cl, 3 dwg
FIELD: cable jointing devices.
SUBSTANCE: cable jointing box provided with through duct to receive respective cable end mounts cup-shaped electric contact whose edge forms hold-down ring tightly enclosing reduced-diameter box section. Naked conducting member is placed between electric contact and box section. Hold-down ring is squeezed to tighten up joint between duct wall and cable sheath. Tightening sleeve is capable of holding two boxes, each being connected to cable through respective electric contacts. Sleeve provides for tight joint between interrelated cable parts in region bounded by sleeve and boxes.
EFFECT: enhanced quality of wire-to-cable joint.
8 cl, 10 dwg
FIELD: electrical engineering; drilling and servicing inclined and horizontal oil-gas wells.
SUBSTANCE: proposed cable connector specially designed to prevent ingress of conducting medium (drilling mud) into its interior thereby ensuring reliable insulation of contacts from environment and preventing electric current leakage (leakage resistance being minimum 50 - 100 Megohms), or poor contact between connector mating parts has pin section and jack section with contact members inside them, as well as membrane. Jack section is made in the form of cylindrical shroud with stepped inner space accommodating contacts made in the form of flexible split rings secured on flexible cross-arms, flexible membrane disposed at pin section joint, and spring-loaded sealing ring mounted within shroud for displacement. Inner space of jack section is filled with insulating liquid. Cylindrical pin section has conical end; diameter of pin cylindrical part is larger than inner diameter of sealing ring.
EFFECT: enhanced tightness and reliability of contact between mating parts of connector.
1 cl, 4 dwg
FIELD: electrical engineering.
SUBSTANCE: proposed junction module has independent connecting member inserted in jacks which are connected to modular members incorporated in operating and protective equipment of transformer substations and power distribution systems. Each connecting member has external flexible shroud accommodating conducting ring wherein plurality of conducting parts are installed and passed through ring channels. Mentioned conducting parts are assembled in bundle for its axial displacement and turning in ring which makes it possible to wire and connect them to respective contact leads provided in jacks and related to each of adjacent members.
EFFECT: eliminated leakage of protective gas during junction due to reliable sealing and insulation of joint.
6 cl, 7 dwg
FIELD: electrical engineering; electrical connections to supply power to submersible pump motor for extracting stratum liquid.
SUBSTANCE: proposed cable extension-cord box of submersible motor cable line that suffers in operation high hydrostatic pressure and temperature has box proper accommodating cable fixed in position by means of fastening member; cable has conductors and terminal block provided with holes to receive cable lugs and conductors connected to them; at least one of joints between cable conductors and lugs is disposed in terminal block hole at distance L ≥ 0.5 d, where d is cable conductor diameter, from butt-end surface of block disposed closer to supporting member additionally installed in cable box and provided with holes to receive cable conductors.
EFFECT: enhanced reliability and service life, enlarged functional capabilities of device.
20 cl, 8 dwg, 1 tbl
FIELD: devices for formation of electrical connections in vehicles; the repair kit is designated for repair of a failed electrical device of a vehicle connected to the vehicle electrical equipment system by several wires.
SUBSTANCE: the repair kit has a new electrical device installed instead of the failed one, several wires connected to the new electrical device and a built-up protective box designated for protection of the electrical connection made by joining of the wires of the new electrical device and the wires of the vehicle electrical equipment system. The built-up protective box has a body with several holes insulated from one another. The packing rings positioned in each hole of the body intended for arrangement of the new electrical device section of the connected respective wire of the vehicle electrical equipment system and the respective new electrical device form in fact a waterproof packing around the section of the wires connected to one another by joining. The protective built-up box has also a cover joined to the body. The claimed repair kit is preferably designated for replacement of the sensor of the content of oxygen in exhausted gases failed on the vehicle.
EFFECT: simplified aftersale servicing of the vehicle.
9 cl, 8 dwg
FIELD: electric engineering, possible use during drilling and operation of slanting and horizontal oil-gas wells.
SUBSTANCE: cable socket for operation in conductive environment consists of rod and socket parts with holding assembly. Holding assembly is positioned in rod part of socket and includes spring-loaded bushing, internal diameter of which is greater than external diameter of socket part body, and holding elements, held together by resilient ring and in casing, which is pressed by spring to internal shelf of rod part body. Rod part additionally contains rotary cutoff plate and lever connected thereto, pinned on an axis.
EFFECT: reliable holding of cable socket, and also reliable connection of rod and socket parts at low force, applied to cable with socket held on its end, while disconnection occurs at distance 200-500 meters from force application point.
FIELD: instrumentation engineering; space-rocket technology, aeronautical engineering, and advanced radio electronic devices.]
SUBSTANCE: proposed sealed plug has metal shroud that incorporates cylindrical part being jointed, rectangular flange, and cylindrical wiring tail, as well as glass insulator installed within shroud and reinforced by dowel pins. Shroud accommodates intermediate steel ring assembled by tight fit, its inner diameter being equal to outer one of glass insulator. Plug shroud is built of two parts of which first one has cylindrical part being jointed and front end of rectangular flange abutting against the latter and made of light-mass metal alloys whose coefficient of linear expansion is close to that of steel, as well as second end of rectangular flange abutting against cylindrical wiring tail, and cylindrical wiring tail, both made of steel.
EFFECT: reduced size and mass at high degree of plug tightness.
1 cl, 1 dwg
FIELD: electrical engineering.
SUBSTANCE: proposed printed-circuit conductor 1 is provided with a number of jacks 2 for same number of terminals 3 to which magnet wires 8 are drawn by means of tool 11 to form junction by passing magnet wires 8 through terminals 3. Each jack or cavity 2 is separated from adjacent one by means of transverse partitions 4 and 4' which makes it possible to introduce sealing compound into respective cavity 2 of jack up to level 12 below input step 10 of magnet wires and above edge of terminals 3 so as to ensure that mentioned terminals and junction points between them and magnet wires 8 are immersed in sealing compound to prevent oxidation at junction points.
EFFECT: enhanced effective life of sealing compound.
8 cl, 4 dwg
FIELD: electrical connector and method for connecting coaxial cable lead to terminal.
SUBSTANCE: proposed connector has nut incorporating receiving port for connection to terminal. Nut also has circular clip. Connector also has base member one of whose ends is provided with projection to be inserted through clip hole. Other end of base member incorporates part of inner surface. Connector also has support with flange and body. Support is free to move for compressing external cable conductor and shell with support body and part of inner surface to obtain distal compression. Tightening nut with terminal compresses projection between support flange and circular clip to obtain proximal tightness.
EFFECT: enhanced tightness, reduced manufacturing and maintenance charges.
10 cl, 11 dwg