(57) Abstract:Usage: in electrical engineering for switching electrical circuits in conductive and corrosive environments such as sea water. The electrical connector includes a plug, a cylindrical housing, the bottom of which the inner side of the fixed wall, and on the opposite side of the fixed funnel-shaped elastic membrane, oriented narrow part inside filled with a neutral dielectric medium with a density different from the density of the surrounding electrical connector environment. 1 Il. The invention relates to electrical engineering and can be used for switching electrical circuits in electrically harsh environments, such as in sea water.A device containing a socket consisting of a body and Union nut with an annular protrusion on its outer surface, on which are rigidly mounted two annular element with at least two coaxial holes, and plug consisting of a body on which is rigidly mounted a sleeve with an internal annular lip, and an annular part that is installed in the plane of the sleeve for rotation, on which is rigidly ustanovlennyh outlet (ed.St. USSR N 1115146, CL N 01 To 13/64, 1986).The disadvantage of this device is the inability to provide a reliable coupling in electrically conductive and corrosive environments, particularly in seawater.The closest in technical essence to the present invention is a device consisting of two equipped buildings mates plugs and sockets, rubber diaphragms and breakers (U.S. Patent N 3519975, CL 339-14, 1970).The disadvantage of this device is the inability to provide a reliable coupling in electrically conductive and corrosive environments, particularly in seawater.The coupling in the conductive sea water leads to abnormal circuit contacts. In addition, the influence of sea water leads to corrosion of metal elements of the connectors and the destruction of other materials, as well as a reduction in the reliability of the correct dock.The purpose of the invention is to provide a reliable dock connector in electrically conductive and corrosive environments.The goal is achieved in that the device containing the plug, an elastic diaphragm and the casing, the bottom of which the inner side of the fixed socket, the inner part of the housing is filled with a neutral immiscible with the outside is performed funnel shaped and directed narrow part towards the outlet.In case of connection plugs from top to bottom the device is oriented with its bottom down, and the density of neutral dielectric environment choose more density environment.In case of connection plugs from the bottom up device oriented bottom up, and the density of neutral dielectric environment choose a lower density than the environment.The drawing shows the design of an electric connector.The electrical connector includes a plug 1, a cylindrical housing 2, a bottom 3 which is fixed to the outlet 4, and with its opposite side is fixed funnel-shaped elastic membrane 5, oriented inside the cylindrical body 2 filled with a neutral dielectric medium 6 with a density different from the density of the surrounding electrical connector environment.Shown in the drawing an embodiment adapted for use in the marine environment if necessary coupling the free end of the cable, which is fixed to the plug 1, from top to bottom. It is assumed that the cylindrical body 2 is rigidly fixed to a unit located, for example, on the bottom of the sea. From this figure it follows that in this case, the device is oriented deilin, density greater than the density of sea water.If necessary, the dock from the bottom up, for example from the unit, located on the bottom of the sea, to the bottom of the vessel, the device is oriented on the contrary, i.e., the bottom 3 up, and fill in neutral dielectric fluid with a density less than the density of sea water, such as kerosene, diesel oil, etc.Wednesday 6 is chosen empirically depending on the environment. The difference of the densities of the medium 6 and the external environment can be arbitrarily small, however, to reduce the time-sharing environments (the appearance of a clear border between them) the difference in density, it is advisable to have as much as possible. For sea water as the medium 6 can be used kerosene, the density of which is 20% less than the density of the external environment.The electrical connector is as follows.Consider his work for the variant represented in the drawing.Cable with plug 1 is inserted through the hole in the rubber diaphragm 5. The narrow end of the rubber membrane 5 covers the plug, which reduces the possibility of ingress of sea water into the housing 2.If the sea water will get inside of the housing 2, the contact Rosa is CLASS="ptx2">In addition, when possible fluctuations of the housing 2 due to the funnel shape of the elastic membrane 5 is excluded pouring of triline into the environment even in the absence of the plug 1 within the housing 2.Thus, due to the above improvements electrical connector ensures reliable docking electrical connector in electrically conductive and corrosive environments such as sea water, is excluded because of its interaction with the contact elements of the plug 1 and the socket 4. The ELECTRICAL CONNECTOR containing the plug, socket, an elastic diaphragm and a hollow body, in the bottom of the inside of the housing is fixed to the outlet, characterized in that, to ensure reliable connections specified elastic diaphragm made funnel shaped and directed narrow part towards the outlet, and the inner part of the housing is filled with a neutral dielectric medium with a density different from the density of the external environment.
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
SUBSTANCE: sealed lead-in is intended for noncontact energy transfer from a submersible cable to radioelectronic undersea vehicle. The sealed lead-in comprises a detachable magnet core made of two halves; one of them together with primary winding is placed in a sealed unit of the submersible cable while the other one is placed in the counterpart of the sealed lead-in - in the sealed unit of the submersible cable. Jointing planes of the magnet core are placed in jointing plane of the sealed lead-in. Mechanical clamper for sealed units ensures water displacement from the space between jointing planes; to this end to jointing plane of one sealed unit between pads of the magnet core placed in the jointing plane a band of soft waterproof isolating material is applied; the material, for example rubber, has property of shape recovery when mechanical load is eliminated.
EFFECT: expanded functionality and scope of the device application, increased efficiency at energy transfer from the sealed power source to a sealed energy receiver when placed in salty sea water.
FIELD: oil and gas industry.
SUBSTANCE: invention relates to downhole protection device (1) for downhole tool (2), which regulates power delivery from drive to an electric component placed in the tool (2). The device (1) comprises the first element (3) including a group of conductors (4), the second element (6) comprising a group of conductors (7), and driving gear (31) for movement of the first element (3) in regard to the second element (6). Conductors of the first element (3) are represented by the first conductors (8) and the second conductors (9). At least two of the first conductors (8) have large square area of surface than the second conductors (9), and that is why the first conductors (8) transfer bigger quantity of electric energy to conductors of the second element (6) in comparison with the second conductors (9).
EFFECT: development of downhole protection device for downhole tool, which prevents unintended operations at break occurrence in the tool.
15 cl, 9 dwg
SUBSTANCE: invention relates to a multichannel rotating electric connector and can include multiple first contacts, which are located radially from each other, and multiple second contacts that enter into electric contact with respective first contacts, wherein there is relative rotation between first and second contacts. Second contacts can be radially spaced from each other. Downhole tool includes one section, which rotates relative to other section of downhole tool, and a multichannel rotary electric connector, which includes multiple contacts of annular shape, which rotate relative to each other. Method of operating downhole tool in underground well includes generation of relative rotation between sections of downhole tool and maintaining multichannel communication by electrical signals between sections, wherein there is relative rotation between sections.
EFFECT: improved equipment for reception and transmission of electric signal.
18 cl, 10 dwg