EP2852441A1 - Procédé de sauvetage et dispositif de sauvetage - Google Patents

Procédé de sauvetage et dispositif de sauvetage

Info

Publication number
EP2852441A1
EP2852441A1 EP13724220.2A EP13724220A EP2852441A1 EP 2852441 A1 EP2852441 A1 EP 2852441A1 EP 13724220 A EP13724220 A EP 13724220A EP 2852441 A1 EP2852441 A1 EP 2852441A1
Authority
EP
European Patent Office
Prior art keywords
rope
liferaft
abfahrseil
downhill
weight
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.)
Withdrawn
Application number
EP13724220.2A
Other languages
German (de)
English (en)
Inventor
Uwe Bergmann
Dirk Bergmann
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from PCT/EP2012/059409 external-priority patent/WO2012160038A2/fr
Priority claimed from DE102012108573.0A external-priority patent/DE102012108573A1/de
Application filed by Individual filed Critical Individual
Priority to EP13724220.2A priority Critical patent/EP2852441A1/fr
Publication of EP2852441A1 publication Critical patent/EP2852441A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/02—Devices for lowering persons from buildings or the like by making use of rescue cages, bags, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B23/00—Equipment for handling lifeboats or the like
    • B63B23/40—Use of lowering or hoisting gear
    • B63B23/48—Use of lowering or hoisting gear using winches for boat handling
    • 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
    • B63C9/00—Life-saving in water
    • B63C9/22—Devices for holding or launching life-buoys, inflatable life-rafts, or other floatable life-saving equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/50—Maintenance or repair
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A62B1/16—Life-saving ropes or belts
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A62B1/18—Other single parts for rope lowering-devices, e.g. take-up rollers for ropes, devices for shooting ropes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the invention relates to a method and a device for abseiling loads, in particular of persons, from an offshore platform.
  • Such rescue devices are needed, for example, for the maintenance personnel of wind turbines.
  • Modern wind turbines with a capacity of several megawatts currently reach hub heights of up to 160m and are also installed in the sea (offshore) for power generation. These plants have at the top of the tower on a relatively large-sized engine house, which can provide up to 30 people during maintenance work. The high personnel deployment during maintenance and repair should minimize downtimes.
  • Access to the nacelle of the wind turbines is usually via a vertical riser equipped with a climbing protection system or by means of a passenger car inside the tower.
  • a vertical riser equipped with a climbing protection system or by means of a passenger car inside the tower.
  • an emergency such as a fire in the nacelle or in the base of the tower, it must be ensured that all persons in the facility can immediately reach safety via an alternative escape route.
  • DE 20 2010 002 467 U1 discloses a rescue device which has an unwinding device for a downhill rope installed on the platform, a life raft fastened to the lower end of the downhill rope, and a tensioning device arranged in the region of the lower end of the downhill rope and designed for this purpose is to keep the downhill rope taut even when floating on the life raft on the water.
  • the tensioning device ensures that the downhill rope is kept under tension so that the load does not collide with the tower or other obstacles during rappelling, but can be brought to the ground in a controlled manner.
  • the load can be fixed by means of a holding harness to a brake unit, which runs along the Abzugsseil with limited speed. By using a larger number From braking units, it is possible to rappel several people in rapid succession on a single Abzugsseil.
  • the object of the invention is to simplify the clamping device.
  • a significant advantage of this method is that on or in the life raft no complex mechanical tensioning device needs to be installed and accordingly costs and space can be saved.
  • a suitable device for carrying out this method is the subject of the independent device claim.
  • Figure 1 is a schematic diagram of an offshore wind turbine with a rescue device according to the invention.
  • FIG. 2 - 5 sketches anlog to Fig. 1, to illustrate the process flow
  • FIGS. 6 and 7 are sketches of a method according to another embodiment.
  • FIG 8 and 9 is a plan view of a life raft according to another embodiment in two different states of use.
  • FIG. 1 an offshore wind turbine is schematically shown, which has a tower 10, a nacelle 12, a hub 14 and rotor blades 16.
  • the nacelle 12 takes Machine house, in which a larger number of people can stay 18 during maintenance or repair work.
  • the wind power plant is equipped with a rescue device 20, which makes it possible to evacuate the maintenance personnel in an emergency, for example when a fire breaks out in the machine house, within a very short time via a separate escape route (not running through the tower 10).
  • This rescue device comprises a downhill cable 22, a cable storage 24, and a tensioning weight 26, which is held on the downhill cable 22 by a braking device 28.
  • a braking device 28 In the example shown between the tension weight 26 and the braking device 28 is still a dinghy or a life raft 30 arranged, which is initially in the collapsed state.
  • the downhill rope 22 In the case of the downhill rope 22, it should preferably be a steel cable for reasons of fire safety.
  • One end of the Abfahrseils 22 is securely attached to the nacelle 12, z. B. on the ceiling of the machine house.
  • the other end of the Abfahrseils is first received in the cable storage 24, which is also located inside the nacelle 12.
  • the rope store may be, for example, a drum or simply a housing in which the downhill rope is housed or wound up. If the cable storage receives a cable reel, this is preferably wound up with a twist, so that the unwinding properties are improved.
  • the rope storage may also be a belt which holds the downhill rope in its state wound into a roll or asssembled into a package and which is released or severed when the rescue device is put into use.
  • the tension weight 26 is held with the braking device 28 and the life raft 30 at a portion of the Abfahrseils 22 between the upper end and the recorded in the cable storage 24 section.
  • the rescue device 20 may be fixedly installed in the nacelle 12. However, it is also possible to retrofit an existing wind turbine with the rescue device 20. It is also possible for the maintenance personnel to bring the rescue device 20 and to install it in the nacelle 12 only at the beginning of the maintenance work.
  • the cable storage 24 is formed by a housing which is releasably held in an exit hatch 32 formed in the bottom of the nacelle 12. If an evacuation of the persons 18 is required, the cable storage 24 is released from its support and dropped to release the exit hatch 32, as shown in FIG. While the upper end of Abfahrseils 22 remains attached to the nacelle 12, the cable storage 24 moves due to its own weight and the weight of the rope received therein down, the Abfahrseil 22 is increasingly pulled out of the cable storage 24.
  • the rope store can be designed so that the pull-out movement of the rope is braked to a certain extent and thus the falling speed of the rope is controlled.
  • the Abfahrseil 22 has been completely pulled out of the cable storage 24 and now depends freely from the nacelle 12 down.
  • the length of the Abfahrseils 22 is dimensioned so that its lower end to which a stopper 34 is attached, is located slightly below the water surface 36.
  • the cable storage 24 has fallen off and now drives on the water surface.
  • the braking device 28 includes a brake, such as a centrifugal brake, with the abseiling speed of the tension weight 26 is limited.
  • the braking device 28 may be releasably clamped to the downhill rope 22, so that it is also possible in a modified embodiment, the brake unit and the tension weight 26 to attach to the Abfahrseil 22 only when it has been dropped and pulled out of the cable storage.
  • FIG. 4 shows the rescue device in the state in which the tensioning weight 26 moves downwards on the downhill cable 22 at the speed limited by the braking device 28.
  • the tensioning weight 26 moves downwards on the downhill cable 22 at the speed limited by the braking device 28.
  • the part of the Abfahrseils 22, which is still below the clamping weight 26 virtually no tensile forces.
  • the part of the downhill rope lying above the tensioning weight 26 is replaced by the tensioning weight 26 held taut and thereby stabilized in its position so that it extends from the exit hatch 30 from vertically downwards.
  • each person 18 attaches a holding harness 38, which is connected to a brake unit 40.
  • the brake unit 40 may be similar in construction to the brake device 28, but need only be designed for a lower weight.
  • the brake unit 40 includes idler pulleys, not shown, with which they can be clamped to the downhill rope 22 so that it is controlled along the downhill rope movable.
  • the brake unit 40 includes a brake, for example a centrifugal brake, which limits the speed at which the brake unit moves down the downhill cable 22 to a maximum value of, for example, 2 m / s.
  • This maximum value should be slightly less than the maximum speed to which the braking device 28 is set for the tension weight 26. In this way, the persons 18 can be abseiled one after another over the downhill rope 22, without running on the tension weight 26. In FIG. 4, two persons 18 are already rappelling on the downhill rope 22. The remaining persons can then follow at appropriate intervals.
  • the tension weight 26 has reached its lower end position on the Abfahrseil 22. In this end position, the tension weight 26 is stopped by the stopper 34.
  • the impact of the brake unit 28 on the stopper 34 triggers the automatic deployment and inflation of the life raft 30 from.
  • the liferaft floats on the water, but is still connected to the downhill rope 22 by the brake unit 28.
  • the downhill rope runs, for example, through a valve or a watertight passage in the bottom of the life raft 30 to the tension weight 26. This ensures that the tension weight 26 still exerts a tensile force on the down rope 22 in this state and this keeps taut, so that the 18 persons can rappel without risk until they reach the liferaft.
  • the braking device 28 can be released from the downhill rope and the tension weight can be dropped to release the liferaft from the downhill rope.
  • the tension weight can be dropped to release the liferaft from the downhill rope.
  • the cable storage 24 may be permanently connected to the lower end of the downhill cable 22.
  • the cable store can also fulfill the function of the stopper 32.
  • Fig. 6 shows a modified embodiment in which the liferaft 30 is formed by a raft 42 carrying two rescue modules 44 detachable from the raft, for example inflatable rafts, which are still shown in Fig. 6 in the uninflated condition.
  • the raft 42 is traversed centrally by the Abfahrseil 22 and is supported during rappelling via a centering cone on the cable storage 24 from.
  • the rope store contains in this example a drum from which the rope is unwound and whose speed is limited by the braking device 28.
  • the tension weight 26 is formed by the weight of the rope store or a heavier bottom plate of this rope store.
  • the cable storage 24 and the tension weight 26 hang in the water, so that they keep the downhill rope 22 stretched. If the Abzugsseil should get into vibration, causes the flow resistance of the cable accumulator 24 a vibration damping.
  • the raft 24 floats at a distance above the rope store 24 on the water and serves as a "landing place" for the persons rappelling on the downhill rope
  • one of the rescue modules 44 is already at one Inflatable dinghy has been inflated so that the persons can transfer from the raft 42 into the rescue module 44.
  • a rescue module 44 Once a rescue module 44 is fully populated with rescued persons, it may be uncoupled from the raft 42 to bring the rescued persons to a salvage ship or shore.
  • the downhill rope 22 with the raft 42 and the unit of cable storage 24 and tension weight 26 remain at the wind turbine back. If the rope storage 24 and the tension weight 26 are recovered, the attachment of the downhill rope 22 in the pod 12 may be released by means of a remote control mechanism so that the rope falls down and the rescue device is completely disconnected from the wind turbine without people closing it have to get into the gondola for this purpose.
  • the liferaft 30 is formed by three rescue modules 44 in the form of inflatable boats, each having the shape of a 120 ° -Kreissektors in plan view and thus complement each other to a full circle, in the center of the Abfahrseil 22 passes between the rescue modules.
  • the rescue modules 44 are coupled together so that they can not drift away from the downhill rope 22.
  • the rescue operation is complete and all rescued persons are in the rescue modules 44, they are released from each other so that they can also move away from the downhill rope 22, as shown in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Ocean & Marine Engineering (AREA)
  • Emergency Lowering Means (AREA)

Abstract

Procédé de descente en rappel de charges (18) d'une plate-forme en mer, selon lequel on peut faire descendre un ilôt de sauvetage (30) de la plate-forme le long d'un câble descendeur (22), jusqu'à ce que l'ilôt flotte sur l'eau, et selon lequel au moins une charge est descendue en rappel jusque dans l'ilôt de sauvetage le long du câble descendeur, caractérisé en ce que le câble descendeur est maintenu tendu par un contrepoids (26) qui est suspendu à une extrémité du câble descendeur, ladite extrémité étant passée à travers l'ilôt de sauvetage (30).
EP13724220.2A 2012-05-21 2013-05-14 Procédé de sauvetage et dispositif de sauvetage Withdrawn EP2852441A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13724220.2A EP2852441A1 (fr) 2012-05-21 2013-05-14 Procédé de sauvetage et dispositif de sauvetage

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PCT/EP2012/059409 WO2012160038A2 (fr) 2011-05-25 2012-05-21 Procédé et dispositif de sauvetage
DE102012108573.0A DE102012108573A1 (de) 2012-09-13 2012-09-13 Rettungsverfahren und Rettungsvorrichtung
EP13724220.2A EP2852441A1 (fr) 2012-05-21 2013-05-14 Procédé de sauvetage et dispositif de sauvetage
PCT/EP2013/059933 WO2013174678A1 (fr) 2012-05-21 2013-05-14 Procédé de sauvetage et dispositif de sauvetage

Publications (1)

Publication Number Publication Date
EP2852441A1 true EP2852441A1 (fr) 2015-04-01

Family

ID=48470946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13724220.2A Withdrawn EP2852441A1 (fr) 2012-05-21 2013-05-14 Procédé de sauvetage et dispositif de sauvetage

Country Status (1)

Country Link
EP (1) EP2852441A1 (fr)

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