Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63H—MARINE PROPULSION OR STEERING
  • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
  • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
  • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
  • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
  • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
  • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
  • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
  • B63B27/36—Arrangement of ship-based loading or unloading equipment for floating cargo
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
  • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
  • B63B35/003—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for transporting very large loads, e.g. offshore structure modules
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
  • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
  • B63B35/40—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for transporting marine vessels
  • B63B35/42—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for transporting marine vessels with adjustable draught
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
  • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
  • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
  • B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
  • B63B43/06—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability using ballast tanks
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63H—MARINE PROPULSION OR STEERING
  • B63H21/00—Use of propulsion power plant or units on vessels
  • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
  • B63H21/14—Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63H—MARINE PROPULSION OR STEERING
  • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
  • B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
  • B63H23/24—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63H—MARINE PROPULSION OR STEERING
  • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
  • B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
  • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
  • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
  • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
  • B63B2001/044—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull with a small waterline area compared to total displacement, e.g. of semi-submersible type
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
  • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
  • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
  • B63B2035/442—Spar-type semi-submersible structures, i.e. shaped as single slender, e.g. substantially cylindrical or trussed vertical bodies
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63H—MARINE PROPULSION OR STEERING
  • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
  • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
  • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
  • B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis
  • B63H2005/1258—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis with electric power transmission to propellers, i.e. with integrated electric propeller motors

Definitions

• the invention relates to a semi-submersible heavy lift.
• cargo ships are mainly used for the transport of large and heavy piece goods and are characterized by a load capacity of far more than 10,000 t.
• semi-submersible heavy cargo freighters are particularly suitable for the transport of bulky goods, such as complete drilling platforms, harbor crane systems or medium to large watercraft or parts thereof.
• semi-submersible heavy cargo freighters usually consist of a front part, in which the propulsion system and the command and crew rooms are located, and a rear part, which is essentially a hollow-walled ballast tank
• Float is formed with a flat transport platform.
• ballast tanks By flooding the ballast tanks, it is possible to immerse the semi-submersible heavy cargo freighter so far that the transport platform is lowered below the swimming water line in order to pick up or deliver cargo that is floatable or, for example, stored on a pontoon. Conversely, by draining the ballast tanks, it is possible for the transport platform to rise under the freight to be transported in order to dock it.
• the loading and unloading of cargo can also be carried out using the so-called roll-on / roll-off method, in which the transport platform of the semi-submersible heavy lift carrier is raised or lowered to the level of the quay . It is known to provide cargo ships with an electric ship propulsion system.
• diesel-electric systems the electric propeller motor is usually fed by generators which are driven by diesel engines and / or gas turbines.
• a diesel-electric drive requires higher investment costs compared to diesel engines directly coupled to the ship's propeller, but offers the advantage of more efficient use and enables a high torque on the propeller shaft even under very high load conditions. With diesel-electric drives there is also no risk of inadequate machine control if the propeller comes out of the water, for example in rough seas.
• the invention has for its object to provide a semi-submersible heavy lift, which has high fuel efficiency and is characterized by good maneuverability.
• the solution to this problem consists in a semi-submersible heavy cargo freighter with floodable and drainable bottom and side tanks for loading and unloading cargo according to the float-on / float-off and / or roll-on / roll-off method and a diesel-electric one Drive system which has diesel engines as main machines which drive at least one azimuth rudder propeller, a transverse thrust device being provided in the foredeck to improve maneuverability, and the equilibrium position being brought in by introducing water ballast is trimmable in upper and lower tanks with respect to the cargo.
• a semi-submersible heavy lift freighter designed in this way has lower fuel consumption than known ships of this type and is particularly easy to maneuver.
• the reason for this is, on the one hand, the use of an azimuth rudder propeller, which, in addition to particularly good maneuverability, also enables better ship resistance. This allows a more precise driving behavior, especially when loading and unloading, and therefore makes the help of tractors largely unnecessary.
• good ship stability due to the trimmable equilibrium position and the transversal thrust device in the bow contribute to good maneuverability.
• the azimuth rudder propellers are driven by a diesel-electric drive system, which ensures high fuel efficiency.
• diesel-electric propulsion system in the foredeck, so that an optimized utilization of the ship's premises results with regard to the suitability of the heavy cargo carrier for transportation.
• the arrangement of the essential parts of the system in the foredeck guarantees the greatest possible variability for loading and unloading cargo on the transport platform in the aft ship, which is not subject to structural restrictions in this way.
• the azimuth rudder propeller is designed as an azimuth rudder double propeller. Double propellers are associated with higher acquisition and maintenance costs in comparison to screw-in devices, but the provision of two propellers enables the propeller diameter to be chosen smaller, with the result that the semi-submersible heavy cargo ship can be designed with a lower draft, which results in a lower cost.
• the transverse thrust device is also electrically driven in order to contribute to a fuel-efficient and cost-effective configuration of the heavy cargo carrier.
• the transversal thruster in the foredeck can be controlled from a central navigation console in the wheelhouse and from two bridge side wings of the semi-submersible heavy cargo ship in order to ensure the greatest possible clarity when maneuvering.
• the flooding and draining of the bottom and side tanks can be controlled from a control desk on the aft side of the wheelhouse.
• the switch and signal boards of the semi-submersible heavy goods carrier are expediently housed in a fully insulated machine control room in order to dampen the sound level emanating from the ship's machines.
• the diesel engines can be operated with heavy oil which has a viscosity of approximately 3,500 s redwood.
• Low operating costs also contribute if according to another advantageous Further development of the invention as auxiliary machines diesel engines are provided which can be operated with marine diesel oil.
• the auxiliary machines are advantageously set up on a vibration-damped foundation so that the lowest possible noise level develops.
• the exhaust line of the drive system is arranged to be movable in order to ensure the greatest possible variability with regard to a sound-conducting line.
• the invention further proposes that loading gear, preferably hydraulically operated ship cranes, be arranged on the foredeck so that the conventional lift-on / lift-off method can also be used for loading and unloading.
• two windlasses with an anchor chain be arranged on the fore ship and one windlass with an anchor rope on the aft ship in order to ensure reliable three-point mooring.
• FIG. 1 shows a side view of a semi-submersible heavy cargo ship
• 2 shows a plan view of the semi-submersible heavy cargo freighter according to FIG. 1
• FIG. 3 shows a side view of an azimuth rudder double propeller.
• the semi-submersible heavy lift freighter shown in FIGS. 1 and 2 has a total length of 156 m.
• the length between the plumb bobs is 145 m.
• the cargo deck has a free transport area of approx.4,065 m 2 .
• the side height in the area of the cargo deck is 10 m, during the draft of the semi-submersible heavy cargo freighter is 7.50 m on the construction freeboard and 19.0 m on the lowered cargo deck.
• the semi-submersible heavy lift freighter has a dead weight of 18,000 t on construction freeboard. This is made up of 2,000 t of heavy oil (HFO 380) serving as fuel for the main engines, 172 t of marine diesel oil serving as fuel for the auxiliary engines, for which a loading capacity of approx. 200 m 3 is available, 300 t of fresh water, for which there is a loading capacity of 300 m 3 , 25 t of lubricating oil, 20 t of supplies for the crew, 20 t of spare parts and 15,463 t of payload.
• the average design depth for this dead weight in sea water with a specific density of 1,025 t / m 3 is approximately 7.5 m. This corresponds to the draft of the freeboard.
• the semi-submersible heavy lift also has a loading capacity of approx. 40 m 3 for dirty oil and approx. 5 m 3 for waste water.
• Accommodation for 22 crew members and 16 passengers is provided on the foredeck above the foredeck.
• the diesel engines designed as 9-cylinder in-line engines can produce an electrical output of approx. 3,645 kW each. With electrical losses of approx. 8.7% from the generator to the drive and without supplying the on-board system can thus provide an output of 8,675 kW.
• the semi-submersible heavy lift is also equipped with two auxiliary machines designed as diesel engines for the power generation of the on-board system, which deliver a generator output of 720 kW at a speed of 720/900 min "1.
• a third diesel generator is provided for stays in port and emergencies , which has a speed of
• a variety of winches are available to secure the cargo on the cargo deck. Soundproofing measures, such as the spatial separation of machine rooms and accommodations, noise encapsulation of the accommodations on the foredeck or soundproofing for the main engines, ensure ergonomic working conditions.
• the semi-submersible heavy lift can be lifted from the lowered draft of 18 m to a draft of 7.50 within 4 hours by pumping the ballast tanks empty using compressed air. Due to the low consumption of the main engines of 46.98 mT / 24hr, the semi-submersible heavy cargo freighter, which can also be a dock ship depending on the application, can travel 34.6 days longer than comparable conventional vehicles for a period of 360 days Ships. This means that additional freight can be transported at the same operating costs.
• the high fuel efficiency is also due to the fact that, depending on requirements, only one or two diesel engines of the main engines are running. Last but not least, ecological aspects are taken into account.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• Ocean & Marine Engineering (AREA)
• Transportation (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Jib Cranes (AREA)
• Ship Loading And Unloading (AREA)
• Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)
• Cleaning Or Clearing Of The Surface Of Open Water (AREA)
• Motor Or Generator Frames (AREA)
• Toys (AREA)
• Bridges Or Land Bridges (AREA)
• Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
• Filling Or Discharging Of Gas Storage Vessels (AREA)

Applications Claiming Priority (3)

Publications (2)

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• 1998
  • 1998-12-23 DE DE29823737U patent/DE29823737U1/de not_active Expired - Lifetime
• 1999
  • 1999-06-18 CN CNB991082990A patent/CN1147410C/zh not_active Expired - Fee Related
  • 1999-07-17 TW TW088110079A patent/TW452558B/zh not_active IP Right Cessation
  • 1999-12-10 EP EP99964416A patent/EP1140616B1/fr not_active Expired - Lifetime
  • 1999-12-10 DK DK99964416T patent/DK1140616T3/da active
  • 1999-12-10 CA CA002356675A patent/CA2356675C/fr not_active Expired - Fee Related
  • 1999-12-10 ES ES99964416T patent/ES2217866T3/es not_active Expired - Lifetime
  • 1999-12-10 PL PL348882A patent/PL199603B1/pl unknown
  • 1999-12-10 AU AU30309/00A patent/AU762581B2/en not_active Ceased
  • 1999-12-10 KR KR1020087009243A patent/KR20080049111A/ko not_active Application Discontinuation
  • 1999-12-10 DE DE59908830T patent/DE59908830D1/de not_active Expired - Lifetime
  • 1999-12-10 WO PCT/DE1999/003947 patent/WO2000038976A1/fr active IP Right Grant
  • 1999-12-10 KR KR1020017008006A patent/KR20010089684A/ko not_active Application Discontinuation
  • 1999-12-10 AT AT99964416T patent/ATE261367T1/de not_active IP Right Cessation
  • 1999-12-10 KR KR1020077027422A patent/KR20070116292A/ko not_active Application Discontinuation
• 2001
  • 2001-06-20 NO NO20013077A patent/NO20013077D0/no not_active Application Discontinuation

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