EP1167178A1 - Schutzvorrichtung für ein Versorgungskabel eines Unterwassergegenstandes - Google Patents

Schutzvorrichtung für ein Versorgungskabel eines Unterwassergegenstandes Download PDF

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Publication number
EP1167178A1
EP1167178A1 EP01401559A EP01401559A EP1167178A1 EP 1167178 A1 EP1167178 A1 EP 1167178A1 EP 01401559 A EP01401559 A EP 01401559A EP 01401559 A EP01401559 A EP 01401559A EP 1167178 A1 EP1167178 A1 EP 1167178A1
Authority
EP
European Patent Office
Prior art keywords
cable
cables
dead body
boat
dead
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
EP01401559A
Other languages
English (en)
French (fr)
Other versions
EP1167178B1 (de
Inventor
André Honoré Adolphe Meirier
Daniel Raymond Marie Scourzic
Claude Jean Guy Villa l'Ensoulei Sorin
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.)
ECA SA
Original Assignee
ECA SA
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Filing date
Publication date
Application filed by ECA SA filed Critical ECA SA
Publication of EP1167178A1 publication Critical patent/EP1167178A1/de
Application granted granted Critical
Publication of EP1167178B1 publication Critical patent/EP1167178B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B63B21/56—Towing or pushing equipment
    • B63B21/66—Equipment specially adapted for towing underwater objects or vessels, e.g. fairings for tow-cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/34—Diving chambers with mechanical link, e.g. cable, to a base
    • B63C11/36—Diving chambers with mechanical link, e.g. cable, to a base of closed type
    • B63C11/42—Diving chambers with mechanical link, e.g. cable, to a base of closed type with independent propulsion or direction control

Definitions

  • the present invention relates to the field of the protection of a connecting cable between an underwater object and a surface boat, especially in the vicinity of one or more propellers of the surface boat.
  • the connecting cable is an electro-carrying cable, transmitting either the supply energy from the boat to the underwater object, i.e. transmission data of the kind remote control, object status, in both directions, ensuring both types of transmission. It is therefore useful to protect this cable when installing to the water of the object and the cable and this as long as said object evolves in the water and during its recovery on board.
  • the present invention proposes to remedy the drawbacks mentioned above.
  • the present invention proposes to prevent damage to the connecting cable by the boat's propulsion system.
  • the device is intended for protection for cable connecting a ship on the surface and an underwater object.
  • the device comprises a dead body, a cable guide associated with the body dead, at least two dead body support cables, and at least one connecting member mounted substantially transversely to the cables of support.
  • the dead body support cables are arranged on one side and on the other of the cable connecting the ship and the underwater object. We thus determines the maintenance of the dead body in an area determined by report to the ship.
  • the dead body support cables are arranged substantially transversely to the ship.
  • the device includes at least three dead body support cables.
  • one cable is in the central position and the others cables are in lateral position, substantially in a plane transverse to ship.
  • the device includes a cable winding means, for example a winch by cable.
  • the connecting member comprises at least one rod connecting at least two support cables.
  • a plurality of rods that will maintain the spacing between the support cables and constitute a curtain between the cable connecting the ship and the underwater object, and the ship's thrusters.
  • said rod is of generally straight shape and arranged substantially horizontally.
  • said rod is of general annular shape and arranged substantially horizontally.
  • the device comprises a unit of cable winding control.
  • the invention also relates to a computer program or of a machine comprising means of program code for setting implement device deployment steps, when said program runs on a computer or PLC.
  • the invention also relates to a medium capable of being read by a device for reading program code means therein stored and which are suitable for implementing the deployment steps of the device, when said program runs on a computer or PLC.
  • the dead body forces the connecting cable connecting the ship and the object submarine to follow a determined route between the ship and said body dead and avoids contact between said connecting cable and the means of ship propulsion such as propellers.
  • the cable guide allows the connecting cable connecting the ship and the underwater object to slide relative to the dead body while forcing said connecting cable to pass near said dead body.
  • the presence of two dead body support cables allows, when their attachment points on the boat are suitably separated, maintain the dead body in a determined position relative to the boat and avoid tangling of the support cables and the connecting cable.
  • the cable guide associated with the dead body allows the connecting cable to slide by report to said dead body and therefore to be able to be unwound and wound from the boat on which a winch is generally provided for this purpose.
  • the liaison body transverse lies in a generally horizontal plane and maintains the spacing of the support cables.
  • a boat of surface referenced 1 as a whole and of which only the rear part is visible, has a deck 2 and a propulsion system comprising two propellers 3 and 4.
  • the underwater object 6 may be, for example, a mine hunting submersible or exploration.
  • a tensioner 8 and a deflection pulley aligned with the winch 7 and suitable for receive the connecting cable 5.
  • the pulley 9 is arranged in overhang rearward.
  • Three winches are also arranged at the rear of deck 2, one left side winch 10, a central winch 11 and a right side winch 12. On these winches are wound respectively with support cables 13, 14 and 15. The free ends of cables 13, 14 and 15 are attached to a dead body 16 which will be described in more detail with reference to FIG. 2.
  • the central winch 11 is arranged in the immediate vicinity of the deflection pulley 9, for example slightly below and in front of said deflection pulley 9.
  • the dead body 16 illustrated in more detail in Figure 2, is of mass of the order of one or several hundred kilos and can be achieved with a hydrodynamic shape to avoid loss of energy important during the movement of the boat, the dead body 16 being immersed.
  • the support cables 13 to 15 are connected and fixed respectively in tie holes 21 through 23 of the dead body 16.
  • the tie hole 21 is disposed on the left side of the dead body 16, the attachment hole 22 is disposed in the center and the attachment hole 23 is arranged on the right side, in the direction progress of the boat.
  • a cable guide 24 is associated with the dead body 16 in position central at the rear of the attachment hole 22.
  • the cable guide 24 is shaped annular and comprises two elements 25 and 26 each forming half of the cable guide 24 along a cutting plane passing through the axis of said cable guide.
  • the element 26 is fixed to the dead body 16 and the element 25 is articulated on the dead body 16 or on the element 26 to allow the opening of the cable guide, which is illustrated in Figure 2 in the open position.
  • Axial drilling 27 passes through the cable guide 24 and has a flared shape at both ends.
  • the connecting cable 5 is intended to be placed in the passage 27 and be able to slide in without risk of deterioration thanks to its flared shape at its upper end and at its lower end.
  • Winch 7, tensioner 8 and winches 10, 11 and 12 are each connected to a control unit, not shown for the simplicity of the drawing, by wire or wireless link.
  • the control unit includes a processor, memory means and a control program stored in the memory means and capable of being executed by the processor.
  • the control unit can be provided with manual control means like buttons, joysticks, touch screen, etc.
  • the control unit is able to control the different stages of implementation of the object submarine 6 and the cable protection device.
  • Winches 7 and 10 to 12 can be electric, hydraulic or pneumatic.
  • the connecting cable 5 is almost entirely wound on the winch drum 7.
  • the underwater object 6 is placed on deck 2 and is fixed therein removable.
  • the dead body 16 is raised to the high position thanks to the winch central 11, the lateral cables 13 and 15 being stretched between the winches respective 10 and 12 and the dead body 16, in an almost horizontal position.
  • the dead body 16 is located below and near the deflection pulley 9.
  • the dead body 16 can be blocked by locking means integral with boat 2 and more rigid than a cable connection.
  • Winches 10 to 12 and winch 7 are then ordered to deflect their respective cables, the charge of the dead body 16 being supported by the central winch 11.
  • the side cables 13 and 15 are kept at low tension, just enough to avoid slack.
  • the winches side 10 and 12 are controlled to tension the side cables 13 and 15 and resume the weight of the dead body 16.
  • the connecting cable 5 is held at low voltage to avoid slack. Note that the cable unwinding speed must be adapted at all times of the launching procedure due to the geometry of the assembly.
  • the connecting cable 5 passing through the cable guide 24 is attached at its end to the underwater object 6 which remains on deck 2.
  • the connecting cable 5 therefore goes between the pulley return 9 and the cable guide 24 and a return between the cable guide 24 and the object submarine 6.
  • the control unit allows, thanks to its program control, to obtain desired deflection speeds.
  • the lengths of the side cables 13 and 15 are adjusted to remain equal in order to avoid unbalancing the dead body 16, especially with the speed of movement of the boat.
  • the underwater object 6 is brought to water using a crane not shown and can then move away from the boat, as illustrated in figure 5.
  • the deployed state (dead body 16 submerged) of the protective device is clearly visible in Figure 6.
  • the different cables 5, 10 and 12 are shown as being perfectly rights, which will not necessarily be the case in real situations.
  • the cable link 5 is arranged behind the support cable 14 which it hides. The cable support 14 is therefore not visible in FIG. 6.
  • Rods 17 to 20 which are fixed at staggered heights on cables 10 and 12 are deployed parallel to each other substantially horizontal.
  • Rods 17 to 20 can be formed by tubes, the ends of which are provided with rings, so that slide along cables 13 to 15.
  • a central ring is also provided to be able to slide along the central cable 14.
  • the spacing between the rods 17 to 20 is provided by spacing lines 28, 29, 30 and 31. All there are two spacers, one on each side of the boat.
  • the ropes 28 are fixed on the one hand to the rear of the boat, for example on deck 2 and, on the other hand at one end of rod 17.
  • the ropes 29 are arranged at one end on the rod 17 and at the other end on the rod 18.
  • the ropes 30 are fixed at one end to the rod 18 and at the other end on the rod 19.
  • the ropes 31 are fixed at one end on the rod 19 and at the other end on the rod 20.
  • the ropes 28 to 31 can pass to inside the respective rods or slide in rings for allow adaptation of the geometry of the ropes and rods according the desired depth of the dead body 16.
  • the assembly formed by cables 13, 14 and 15, the dead body 16, the tubes 17 to 20 and the spacing cables 28 to 31, protects the cable connecting 5 by forming between itself and the propellers 3 and 4 a curtain preventing the connecting cable 5 from coming close to said propellers 3 and 4, even if it were inadvertent or incidental relatively relaxed.
  • the protection device comprises a dead body 16 held by two carrier cables 32 and 33 spaced from each other by a distance for example of the order of a meter and arranged towards the middle of the boat 1.
  • the cables 32 and 33 can be wound on a single double drum winch referenced 34 or, not shown, on two separate winches.
  • the rods which maintain the spacing between cables 32 and 33 are here annular shape and bear the reference 35.
  • the annular rods 35 are connected to each other by ropes 36.
  • a minimum of two ropes 36 is provided between two rods neighboring annulars 35, but preferably three or more for better hold in position.
  • the annular rods 35 are capable of sliding, by example by means of rings, with respect to the carrying cables 32 and 33, and deploy during immersion of the dead body 16.
  • the annular rods 35 come to rest on the dead body 16 during its ascent.
  • the cable link 5 is therefore guided between the return pulley 9 and the dead body 16 by the plurality of annular rods 35, the annular rods 35 having a spacing along the supporting cables 32 and 33, i.e. substantially along a vertical axis, determined by the spacing lines 36.
  • the rod upper annular 35 will be connected to boat 1, for example to deck 2, by a rope not shown.
  • the invention makes it possible to guide the connecting cable below the propellers and to interpose a curtain deployed between said connecting cable and the propellers or more generally the means of propulsion, to prevent a possible displacement of the connecting cable towards these propulsion means.
  • the heavy dead body equipped with a lockable cable guide is submerged by the stern of the boat below the level of the means of propulsion.
  • At at least two auxiliary cables are attached on each side of the dead body and on the sides of the rear shelf with the function of preventing the body dead to rotate and maintain the protective rods that form a curtain between the connecting cable and the propulsion means. Winches support cables to lower or raise the dead body and more generally the protective device between its storage position out of water and its submerged operational position.
  • the protection device is easily deployable and foldable. It has a small footprint in the folded state in the measurement where the protective rods, whether straight or annular, can stack on top of each other. The depth of immersion of the dead body can be adjusted precisely using the winches.
  • the implementation time of the protection devices is very brief and the driving energy during immersion is provided by the force of gravity on the dead body and therefore takes place without energy consumption coming from the boat.
  • the geometry of the protection device is adaptable from a boat to another by playing on the length of the protective rods when straight and is relatively universal in the case of stems ring protection.
  • the device protection is a height requirement of around one meter.
  • the deployment time may be of the order of 2 minutes.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Electric Cable Installation (AREA)
  • Cable Accessories (AREA)
EP01401559A 2000-06-21 2001-06-14 Schutzvorrichtung für ein Versorgungskabel eines Unterwassergegenstandes Expired - Lifetime EP1167178B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0007896 2000-06-21
FR0007896A FR2810627B1 (fr) 2000-06-21 2000-06-21 Dispositif de protection d'un cable de liaison d'un objet sous-marin

Publications (2)

Publication Number Publication Date
EP1167178A1 true EP1167178A1 (de) 2002-01-02
EP1167178B1 EP1167178B1 (de) 2005-08-31

Family

ID=8851478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01401559A Expired - Lifetime EP1167178B1 (de) 2000-06-21 2001-06-14 Schutzvorrichtung für ein Versorgungskabel eines Unterwassergegenstandes

Country Status (5)

Country Link
EP (1) EP1167178B1 (de)
AT (1) ATE303289T1 (de)
DE (1) DE60113008T2 (de)
DK (1) DK1167178T3 (de)
FR (1) FR2810627B1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR908304A (fr) * 1944-12-19 1946-04-05 Dragueurs de mines
DE921781C (de) * 1952-01-16 1954-12-30 Hochseefischerei Nordstern A G Hoehenspreizgeraet fuer Fischnetze
FR2296562A1 (fr) * 1975-01-06 1976-07-30 Inst Francais Du Petrole Dispositif flottant relie a un navire pour remorquer un element immerge en le deportant par rapport a la route du navire
US4184209A (en) * 1952-10-10 1980-01-15 Crist Ralph P Towed noisemaker
GB2186854A (en) * 1986-02-14 1987-08-26 Geco As An angular member for a seismic cable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR908304A (fr) * 1944-12-19 1946-04-05 Dragueurs de mines
DE921781C (de) * 1952-01-16 1954-12-30 Hochseefischerei Nordstern A G Hoehenspreizgeraet fuer Fischnetze
US4184209A (en) * 1952-10-10 1980-01-15 Crist Ralph P Towed noisemaker
FR2296562A1 (fr) * 1975-01-06 1976-07-30 Inst Francais Du Petrole Dispositif flottant relie a un navire pour remorquer un element immerge en le deportant par rapport a la route du navire
GB2186854A (en) * 1986-02-14 1987-08-26 Geco As An angular member for a seismic cable

Also Published As

Publication number Publication date
ATE303289T1 (de) 2005-09-15
EP1167178B1 (de) 2005-08-31
FR2810627A1 (fr) 2001-12-28
DE60113008T2 (de) 2006-06-29
DK1167178T3 (da) 2006-01-09
DE60113008D1 (de) 2005-10-06
FR2810627B1 (fr) 2002-08-30

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