EP3736919A1 - Elektrische drehgelenkvorrichtung, die für die ausstattung einer anlage zur nutzung von fluiden konzipiert wurde, insbesondere auf einer offshore-plattform - Google Patents

Elektrische drehgelenkvorrichtung, die für die ausstattung einer anlage zur nutzung von fluiden konzipiert wurde, insbesondere auf einer offshore-plattform Download PDF

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Publication number
EP3736919A1
EP3736919A1 EP20173094.2A EP20173094A EP3736919A1 EP 3736919 A1 EP3736919 A1 EP 3736919A1 EP 20173094 A EP20173094 A EP 20173094A EP 3736919 A1 EP3736919 A1 EP 3736919A1
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EP
European Patent Office
Prior art keywords
internal chamber
joint device
electrical
rotary joint
dielectric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20173094.2A
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English (en)
French (fr)
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EP3736919B1 (de
Inventor
Laurent Saint-Michel
Jean-Claude EBLE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eti Group
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Euro Techniques Industries
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Filing date
Publication date
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Publication of EP3736919A1 publication Critical patent/EP3736919A1/de
Application granted granted Critical
Publication of EP3736919B1 publication Critical patent/EP3736919B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B63B21/507—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers with mooring turrets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the invention relates to electric rotary joint devices configured to equip installations for the exploitation of fluids, for example hydrocarbons, in particular on platforms of the offshore type.
  • the invention relates to a high voltage electric rotary joint device.
  • the invention also relates to an installation for the exploitation of fluids, in particular on an offshore type platform, comprising at least one such electrical rotating joint device.
  • Electrical rotating joint devices installed in pressurized installations can find an application in oil production vessels in the offshore sector, allowing the exploitation of hydrocarbon fields at sea.
  • Floating production, storage and unloading can be formed by a ship which is mobile, due to its environment, around a mooring turret which is geostationary.
  • the vessel may be temporarily secured to the turret.
  • the installations may include conduits which form a network of underwater pipes and which allow fluid communication for the transfer of a fluid between the turret and the ship.
  • Such electrical rotating joint devices may form part of a rotating joint assembly further comprising a stack of rotating sealing devices ("swivel stack device" in English terminology), the electrical rotating joint device being interposed between the devices. rotating seal.
  • Such electrical rotating joint devices also called rotating electrical collectors or, in Anglo-Saxon terminology, “electrical swivel devices” are electromechanical devices configured to transfer electrical energy between the ship which is mobile and the mooring turret which is fixed.
  • the electric rotary joint devices are provided with a first part, called fixed, attached to the turret and a second part, called mobile, subject to the vessel.
  • the second part of the electric rotary joint devices is therefore movable relative to the first part of the electric rotary joint devices.
  • the electric rotary joint devices have an internal chamber delimited by the first and second parts. This internal chamber is generally closed and fluid-tight.
  • the electric rotary joint devices operate with circular conductive tracks which are mounted on one of the first fixed part and second movable part, in the internal chamber, and which cooperate with friction blocks which are mounted on the other of the second movable part. and first fixed part, in the internal chamber, in order to establish electrical connections, in particular according to several electrical phases.
  • So-called high voltage electrical rotating joint devices can for example be configured to pass voltages of the order of or greater than 1,500 V in direct current or 1,000 V in alternating current.
  • the electrical rotary joint devices used in such offshore applications must meet predetermined quality requirements to provide a certain level of safety, especially in an explosive atmosphere.
  • a dielectric fluid for example oil, is generally introduced into the internal chamber inside which the conductive tracks and the associated friction blocks of the electric rotary joint device are placed.
  • Such a dielectric fluid conventionally has the function of insulating the conductive tracks from one another in order to avoid the formation of electric arcs between a conductive track and a neighboring conductive track, and thus makes it possible to reduce the distance between these conductive tracks.
  • the distance separating the conductive tracks depends in particular on the dielectric strength of the medium in which they are located, which dielectric strength is expressed in kV / mm (kilovolts per millimeter) and characterizes the electric field that it is possible to achieve. apply between two different electrodes before an electric arc occurs and therefore a breakdown phenomenon appears.
  • the patent EP 2 353 213 describes such an electric rotary joint device comprising a first and a second part, movable with respect to one another and forming an internal chamber.
  • Each of the two parts comprises electrical connectors, electrical tracks electrically connected to connectors of one of the two parts and friction blocks electrically connected to connectors of the other of the two parts.
  • the friction blocks cooperate with the electrical tracks to establish electrical contacts.
  • the electrical tracks and the friction blocks are housed in the internal chamber.
  • the internal chamber is closed and is filled with dielectric oil having a higher dielectric strength than that of the air surrounding the electric rotary joint device.
  • the electric rotary joint device is provided with insulating elements which interconnect the conductive elements and which are located in a particular arrangement in the internal chamber.
  • the patent application FR 3 064 122 describes another electric rotary joint device, comprising a first part and a second part, movable with respect to one another and forming an internal chamber.
  • Each of the two parts comprises electrical connectors, electrical tracks electrically connected to connectors of one of the two parts and friction blocks electrically connected to connectors of the other of the two parts.
  • the friction blocks cooperate with the electrical tracks to establish electrical contacts.
  • the electrical tracks and the friction blocks are housed in the internal chamber.
  • the internal chamber is closed and is filled with a dielectric insulating gas having a higher dielectric strength than that of the air surrounding the electric rotary joint device. The use of such a dielectric insulating gas allows a low frequency of maintenance linked to the pollution of the fluid in the internal chamber.
  • the invention relates to an electrical rotating joint device, in particular a high voltage device, configured to equip an installation for operating fluids, exhibiting improved performance compared to the devices of the aforementioned prior art, while being simple, convenient and economical.
  • an electrical rotating joint device configured to equip an installation for the exploitation of fluids, for example a hydrocarbon and in particular on an offshore platform, comprising a first part, a second part movable in rotation with respect to said first part, said first part and second part forming an internal chamber and each being provided with at least one electrical connector, at least one electrical track housed in said internal chamber and electrically connected to a said connector of one of said first part and second part, at least one friction block housed in said internal chamber and electrically connected to one said connector of the other of said second annular part and first part, said at least one friction block cooperating with said at least one electrical track for establishing electrical contact, said internal chamber comprising a di fluid electric; characterized in that it comprises a system for generating and injecting a mist of dielectric fluid into said internal chamber, and a system for recovering and reinjecting said dielectric medium formed from said dielectric fluid and said mist of dielectric fluid into said internal chamber.
  • the electric rotary joint device comprises, in its internal chamber, a dielectric medium formed at least by the mixture of a dielectric liquid and / or a dielectric gas, with a dielectric fluid mist.
  • Such a dielectric medium makes it possible, in addition to its electrically insulating function, to clean the internal chamber of polluting particles which may be there, which polluting particles tend to reduce the dielectric strength of the dielectric medium.
  • the mist of dielectric fluid not only makes it possible to reduce the generation of breakdown phenomena by increasing the dielectric strength of the dielectric medium, but also to capture the polluting particles which may be in suspension in the dielectric liquid and / or in the dielectric gas of the dielectric medium and / or which may be on internal walls of the first and / or second annular portions.
  • the internal chamber may further include an inert gas.
  • the generation and injection system can be configured to generate a plurality of microdroplets of dielectric fluid, in particular by nebulization or atomization, for example from a dielectric liquid or gas.
  • the generation and injection system can be configured to inject at high pressure into said internal chamber said generated dielectric fluid mist.
  • the recovery and reinjection system can be configured to reinject under high pressure said dielectric medium formed of said dielectric fluid and said dielectric fluid mist into said internal chamber.
  • the recovery and reinjection system may include a treatment circuit in fluid communication with said internal chamber, said treatment circuit being provided with at least one filtration element and at least one recirculation pump.
  • the electric rotary joint device may comprise an optical monitoring system of said internal chamber which is configured to detect partial electric discharges and / or polluting elements present on said at least one electric track and / or on said at least one friction block.
  • the electrical rotating joint device may be provided with electrical insulation members substantially in the form of spacers, said electrical tracks are mechanically secured and supported by said electrical insulation members, which are further interposed between said conductive tracks so as to space them apart, and said optical monitoring system of said internal chamber can be configured to detect partial electric discharges on said electric isolating members.
  • the electric rotary joint device may include a control and command unit configured to implement a cycle for cleaning said internal chamber, by means of said generation and injection system and / or said recovery and reinjection system, depending on a detection threshold of said partial electric discharges and / or of said polluting elements.
  • the electric rotary joint device can be provided with a safety member, for example formed by a rupture disc, which acts as a vent and thus makes it possible to prevent an overpressure of said internal chamber.
  • a safety member for example formed by a rupture disc, which acts as a vent and thus makes it possible to prevent an overpressure of said internal chamber.
  • the subject of the invention is also, in a second aspect, an installation for the exploitation of fluids, for example a hydrocarbon and in particular on an offshore platform, comprising at least one electrical rotating joint device as described above, with said first part of said electric rotary joint device which is subject to a fixed mooring turret of said installation and said second part of said electric rotary joint device which is subject to a movable vessel of said installation.
  • the figure 1 illustrates a fluid exploitation installation 1 on an offshore platform, allowing the exploitation of hydrocarbon fields at sea 2.
  • This installation also called a floating production, storage and unloading unit, can be provided with a ship 3 which is mobile, due to its environment formed by the sea 2, and with a mooring turret 4 which is geostationary and around which the ship 3 is mobile.
  • the mooring turret 4 can for example be mechanically secured to the bottom of the sea 2 via submarine anchors 5.
  • the vessel 3 can be movable with respect to the mooring turret 4 by means of a rolling mechanism 7.
  • the installation 1 can be provided with conduits 6 which form a network of underwater conduits allowing fluid communication for the transfer of fluid between the mooring turret 4 and the vessel 3.
  • the fluid circulating in these conduits 6 comes from the bottom of the sea 2 and can be loaded, for example, with sand or drill cuttings.
  • the installation 1 comprises a rotating joint assembly ensuring on the one hand the sealing between the vessel 3 and the mooring turret 4 and therefore the integrity of the transfer of fluid via a stack of rotating sealing devices, and d 'on the other hand the transfer of electrical energy between the ship 3 and the mooring turret 4 via at least one electrical rotary joint device 10 interposed between the rotary joint sealing devices.
  • the figures 2 to 6 show such an electric rotary joint device 10, which is generally cylindrical and comprises a first part 11, called fixed, which is configured to be secured to the mooring turret 4, as well as a second part 12, called mobile, which is configured to be secured to the vessel 3.
  • the second part 12 can be rotatable relative to the first part 11, by means of a rolling member 13 at least partially interposed between the first and second parts 11 and 12.
  • the first and second parts 11 and 12 are here arranged in a substantially concentric manner.
  • the first part 11 may be provided with a cylindrical outer wall 20, a bottom wall 21 connected to a lower end of the cylindrical outer wall 20, and a central shaft 22 extending from the bottom wall 21. , inside the cylindrical outer wall 20.
  • Electrical connection elements are mounted projecting from the bottom wall 21 and extend around the central shaft 22 (see below).
  • the second part 12 can be provided with a top wall 25 having a central opening and from which protrude, on either side of the top wall 25, in particular other electrical connection elements (see below). .
  • the first part 11 and the second part 12 are assembled so that the top wall 25 is inside the cylindrical outer wall 20 of the first part 11, substantially flush with an upper end of the cylindrical outer wall 20 opposite at its lower end, and with the central opening of the second part 11 which is located around the central shaft 22 of the first part 11.
  • the electrical rotating joint device 10 is provided with sealing members 14 mounted and housed between the first and second parts 11 and 12 and providing dynamic sealing between them.
  • the electric rotary joint device 10 is provided with an internal chamber 15 delimited by the assembly of the first part 11 and second part 12. This internal chamber 15 is here closed and sealed.
  • the internal chamber 15 comprises a dielectric medium, which may be under pressure.
  • Such a dielectric medium may comprise, as explained below, a mixture of dielectric liquid and / or dielectric gas, with a mist of dielectric fluid.
  • the internal chamber 15 may further include an inert gas.
  • the electric rotary joint device 10 is provided with a safety member 16, for example formed by a rupture disc, which acts as a vent and thus makes it possible to prevent overpressure of the internal chamber 15.
  • a safety member 16 for example formed by a rupture disc, which acts as a vent and thus makes it possible to prevent overpressure of the internal chamber 15.
  • the object of the electric rotary joint device 10 is for example here to connect three electrical phases and a reference connection, often called an earth connection, by virtue of the electrical connection elements arranged on the first part 11 and second part 12.
  • These electrical connection elements are formed by four first connectors 26 projecting from one side of the bottom wall 21 of the first part 11, outside the internal chamber 15, and by four second connectors 27 protruding from one side of the top wall 25 of the second part 12, outside the internal chamber 15.
  • the electric rotary joint device may include more or less electrical connectors on its first part and / or on its second part.
  • the first connectors 26 and second connectors 27 can each be mounted on a connector support taking, for example, the shape of a straight or bent cylinder (not visible).
  • the electrical connection elements can also be formed by a plurality of electrical conductors 28, for example eight in number here, which protrude inside the internal chamber 15.
  • Each of the plurality of electrical conductors 28 extends for example from a first connector 26 or a second connector 27
  • the electrical connection elements are further formed by a plurality of electrically conductive tracks 29, for example here four in number, and a plurality of friction blocks 30, for example here also four in number.
  • the electrically conductive tracks 29, also called electrical tracks, are housed in the internal chamber 15 and can be mechanically secured to the first part 11.
  • the electrical rotating joint device 10 is provided with electrical insulation members 31 substantially in the form of spacers.
  • the electrical tracks 29 are mechanically secured and supported by the electrical insulating members 31, which are also interposed between the conductive tracks 29 so as to space them apart from each other.
  • the friction blocks 30 are housed in the internal chamber 15 and each of these friction blocks 30 can be mechanically secured to an electrical conductor 28, itself connected to at least one of the first connectors 26 or second connectors 27.
  • friction blocks 30 can therefore be mechanically secured to the first part 11, while the other friction blocks 30 can be mechanically secured to the second part 12.
  • Each of the plurality of electrical conductors 28 can therefore be connected either to a respective friction block 30, which is in contact with a respective electrical track 29, or to a respective electrical track 29, which is in contact with a block. respective wiper 30.
  • This arrangement makes it possible to electrically and structurally interconnect the first connectors 26 and second connectors 27, here two by two, via the electrical conductors 28, the friction blocks 30, the electrical tracks 29 and the electrical insulating members 31.
  • the electrical rotating joint device 10 comprises a system for generating and injecting 40 a dielectric fluid mist into the internal chamber 15, as well as a system for recovering and reinjecting 50 the dielectric medium formed from the dielectric fluid and the mist. of dielectric fluid in the internal chamber 15.
  • the electric rotary joint device 10 here further comprises a fluid management box 18 mounted on the cylindrical wall 20 of the first part 11.
  • the generation and injection system 40 can be provided with one or more first nozzles 41 arranged for example on the top of the cylindrical wall 20 of the first part 11, and with a first fluid circuit 42 connected to the first nozzles. 41 and to the fluid management unit 18.
  • These first nozzles 41 are configured to generate a plurality of microdroplets of dielectric fluid, in particular by nebulization or atomization, for example from a liquid or a dielectric gas.
  • the generation and injection system 40 may be configured to inject the generated dielectric fluid mist into the internal chamber 15 under high pressure.
  • the plurality of microdroplets can thus be injected, under high pressure or not, into an upper part of the internal chamber 15.
  • the recovery and reinjection system 50 may include one or more recovery valves 46 for the dielectric medium in the internal chamber 15.
  • the recovery valves 46 are arranged for example on the bottom of the cylindrical wall 20 of the first part 11.
  • the recovery and reinjection system 50 may also include a treatment circuit 45 in fluid communication with the internal chamber 15 and connected to the recovery valves 46 and to the fluid management box 18.
  • the treatment circuit 45 can be provided with at least one filter element 47 and at least one recirculation pump 48 housed in the fluidic management box 18 and in fluid communication with the recovery valves 46.
  • the recovery and reinjection system 50 may also be provided with one or more second nozzles 51 arranged on the cylindrical wall 20 of the first part 11, for example between the first nozzles 41 and the recovery valves 46, and with a second fluidic circuit 52 connected to the second nozzles 51 and to the fluidic management unit 18.
  • the second fluid circuit 52 is in fluid communication with the processing circuit 45.
  • the second nozzles 51 are thus configured to reinject into the internal chamber 15, under high pressure, the dielectric medium recovered and treated by the recovery valves 46 and the treatment circuit 45 and conveyed into the second fluid circuit 52, which medium is formed. dielectric fluid and dielectric fluid mist.
  • the reinjected dielectric medium can be in the form of jets of liquid or gas at high pressure (for example up to 140 bar).
  • the electrical rotary joint device 10 may include an optical monitoring system for the internal chamber 15 which is configured to detect partial electric discharges and / or polluting elements present on the electric tracks 29 and / or on the friction blocks 30.
  • the optical surveillance system 60 may be formed by one or more cameras 61 and / or one or more windows 62 configured to observe the interior of the internal chamber 15.
  • the cameras 61 and / or windows 62 can for example be housed in the cylindrical wall 20 of the first part.
  • the electric rotary joint device 10 may include a control and command unit 70 configured to implement a cleaning cycle of the internal chamber 15, through the generation and injection system 40 and / or the recovery and recovery system. reinjection 50, as a function of a detection threshold of partial electric discharges and / or polluting elements obtained by means of the optical monitoring system 60.
  • the control and command unit 70 can be housed in the management module 18.
  • the monitoring and control unit 70 may include a particle sensor 75 integrated in the processing circuit 45, which particle sensor 75 receives the recovered dielectric medium and is connected to the filter element 47.
  • the monitoring and control unit 70 may also include a fluidic distributor 76 upstream of the second fluidic circuit 52, which is controlled as a function of the detection threshold of partial electric discharges and / or of polluting elements obtained thanks to the monitoring system. optical 60 and / or information transmitted by the particle sensor 75.
  • the fluidic management module 18 can be provided with a liquid and gas separator 77 located downstream of the recirculation pump 48.
  • the fluidic management module 18 can be provided with a first reservoir 79 and a second reservoir 80 located downstream of the liquid and gas separator 77.
  • the first reservoir 79 is interposed between the fluidic distributor 76 and a booster 78 upstream of the liquid and gas separator 77.
  • the first reservoir 79 is configured to supply the second fluid circuit 52 with a high pressure dielectric medium.
  • the second reservoir 80 is configured to supply the first fluidic circuit 42 and / or the second fluidic circuit 52 with dielectric medium.
  • the monitoring and control unit 70 can for example initiate cleaning cycles with only the injection of the dielectric fluid mist, only the reinjection of the recovered dielectric medium, or a combination of the two.
  • the first part could be movable in rotation with respect to the second part which would be fixed, or else the first part could be movable in rotation with respect to the second part which would also be movable in rotation with respect to the first annular part.
  • the monitoring system may include components housed in the bottom wall of the first part, and / or in the top wall of the second part and / or in the internal chamber.
  • the management module can be located on the bottom wall of the first part or on the top wall of the second part, or even on a separate element of the electric rotary joint device.
  • the management module may include submodules arranged in several places of the electric rotary joint device.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Joints Allowing Movement (AREA)
EP20173094.2A 2019-05-09 2020-05-06 Elektrische drehgelenkvorrichtung, die für die ausstattung einer anlage zur nutzung von fluiden konzipiert wurde, insbesondere auf einer offshore-plattform Active EP3736919B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1904815A FR3095902B1 (fr) 2019-05-09 2019-05-09 Dispositif joint tournant électrique configuré pour équiper une installation d’exploitation de fluides, notamment sur une plateforme offshore

Publications (2)

Publication Number Publication Date
EP3736919A1 true EP3736919A1 (de) 2020-11-11
EP3736919B1 EP3736919B1 (de) 2023-04-19

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Family Applications (1)

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EP20173094.2A Active EP3736919B1 (de) 2019-05-09 2020-05-06 Elektrische drehgelenkvorrichtung, die für die ausstattung einer anlage zur nutzung von fluiden konzipiert wurde, insbesondere auf einer offshore-plattform

Country Status (3)

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EP (1) EP3736919B1 (de)
CA (1) CA3079586A1 (de)
FR (1) FR3095902B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116605368A (zh) * 2023-06-12 2023-08-18 沭阳县百川净水设备有限公司 一种自清洁式水质监测浮台
FR3145654A1 (fr) 2023-02-08 2024-08-09 Eti Group Dispositif joint tournant électrique haute tension configuré pour équiper une installation d’exploitation d’énergie

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404938A1 (fr) * 1977-09-30 1979-04-27 Westinghouse Electric Corp Ensemble de collecteurs de courant massifs
US4252388A (en) * 1979-05-21 1981-02-24 Litton Systems, Inc. High power slip ring assembly
JPS61277182A (ja) * 1985-05-31 1986-12-08 株式会社東芝 高電圧用スリツプリング装置
US5361012A (en) * 1992-12-24 1994-11-01 Hildebrandt James J Method and apparatus for increasing the efficiency of electrical rotary machines
EP2353213A2 (de) 2008-12-01 2011-08-10 Single Buoy Moorings Inc. Hochspannungs-drehpunkt mit gestapelten ringförmigen leiterbaugruppen
FR3064122A1 (fr) 2017-03-20 2018-09-21 Euro Techniques Industries Joint tournant electrique haute tension

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404938A1 (fr) * 1977-09-30 1979-04-27 Westinghouse Electric Corp Ensemble de collecteurs de courant massifs
US4252388A (en) * 1979-05-21 1981-02-24 Litton Systems, Inc. High power slip ring assembly
JPS61277182A (ja) * 1985-05-31 1986-12-08 株式会社東芝 高電圧用スリツプリング装置
US5361012A (en) * 1992-12-24 1994-11-01 Hildebrandt James J Method and apparatus for increasing the efficiency of electrical rotary machines
EP2353213A2 (de) 2008-12-01 2011-08-10 Single Buoy Moorings Inc. Hochspannungs-drehpunkt mit gestapelten ringförmigen leiterbaugruppen
EP2353213B1 (de) * 2008-12-01 2012-09-19 Single Buoy Moorings Inc. Hochspannungs-drehpunkt mit gestapelten ringförmigen leiterbaugruppen
FR3064122A1 (fr) 2017-03-20 2018-09-21 Euro Techniques Industries Joint tournant electrique haute tension

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3145654A1 (fr) 2023-02-08 2024-08-09 Eti Group Dispositif joint tournant électrique haute tension configuré pour équiper une installation d’exploitation d’énergie
EP4415187A1 (de) 2023-02-08 2024-08-14 ETI Group Elektrische hochspannungsdrehdichtungsvorrichtung, die zur ausrüstung einer energienutzungsanlage konfiguriert ist
CN116605368A (zh) * 2023-06-12 2023-08-18 沭阳县百川净水设备有限公司 一种自清洁式水质监测浮台
CN116605368B (zh) * 2023-06-12 2023-10-13 沭阳县百川净水设备有限公司 一种自清洁式水质监测浮台

Also Published As

Publication number Publication date
FR3095902A1 (fr) 2020-11-13
FR3095902B1 (fr) 2021-06-04
EP3736919B1 (de) 2023-04-19
CA3079586A1 (fr) 2020-11-09

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