MXPA97002790A

MXPA97002790A - Cargo transportation and handling system based on the

Info

Publication number: MXPA97002790A
Application number: MXPA/A/1997/002790A
Authority: MX
Inventors: O Aavitsland Dag
Original assignee: O Aavitsland Dag
Priority date: 1994-10-18
Filing date: 1997-04-17
Publication date: 1998-02-01

Abstract

System of transportation and cargo handling based on the sea, comprising a catamaran-type boat, which has two helmets arranged at a distance from each other, and a deck (4) that connects the upper portions of the hulls, where the sides of the helmets facing each other are adapted to move a load unit (2) between the hulls, the load unit practically occupies the space between the hulls, and couplings (5) are disposed at the sides of the hull. loading unit and the sides of the hulls to ensure the interconnection of the cargo unit (2) with the two hulls of the catamaran

Description

CARGO TRANSPORTATION AND HANDLING SYSTEM BASED ON THE SEA D E S C R I P C I O N The present invention relates to a system of transportation and cargo handling based on the sea, according to the preamble of the clauses.

The transport at sea of large volumes of cargo, especially long-distance transportation, have substantial advantages over other transportation possibilities. Within the transportation of cargo volumes in general and tanks, many efforts have been made to minimize the time at the port of the ships during loading and unloading. The capacity of the different ports, also to a high degree, decide the time at the port of the ships, the length of the dock as well as the land-based cranes used by the ships.

In many cases, transportation is carried out as total cargoes of the ship from one place to another, in other cases, parts of the cargo are loaded or unloaded in different ports. In both cases, the ship with its transportation capacity rests and is not used during periods of loading and unloading. Even if the time in the port is also used for rest, maintenance and repairs, the time in the port is much larger than the time needed for these operations, due to the time for loading and unloading.

Different systems have been developed to accelerate loading and unloading operations, such as large fast-acting cranes, advanced container cranes and other cargo handling systems.

With the system according to the present invention, the time in the port of the ships for loading and unloading is substantially reduced, since the loading and unloading is done before and after the ship visits the port. These advantages are achieved with the transportation system according to the present invention as described in the characteristics set forth in the clauses.

With the transportation system and cargo handling according to the present invention, a possibility is provided for executing the loading and unloading when the need exists or when the capacity for loading and unloading is present. The system is very flexible in terms of the type of cargo and in relation to the time of arrival and departure of the ships, when the cargo units according to the system are waiting to be transported, the cargo is completed, or on the contrary, Units can wait until the download is made. The system can be used for any type of cargo, such as gas, oil or volumes cargo.

The drawing illustrated in Figure 1 schematically shows a section of a ship constructed in accordance with the transportation system of the present invention.

Figure 2 shows a vertical longitudinal section of the ship of figure 1; Y Figure 3 illustrates an example for use of the transport system according to the present invention, adapted to an oil transport.

The principles of the transport system have been described, in particular, in Figures 1 and 2. A ship hull 1 of the catamaran type has adapted the opening between the two hulls to receive a cargo unit 2. The two hulls of the catamaran are connected to each other in the upper area with a cover 4 on which the superstructure of the ship is arranged, however it is not shown in the drawings.

The loading unit 2 and the catamaran 1, are interconnected by lifting the catamaran enough, by means of a ballast system of the catamaran, so that the cargo unit 2 can float in the space between the two hulls of the catamaran 1, after which the catamaran 1 is lowered onto the load unit 2.

The loading unit 2 substantially fills the open space between the two hulls of the catamaran 1 and is connected to the hulls of the catamaran by means of appropriately adapted connections 5 which can be designed on the basis of suitable principles and remote control from the ship's bridge.

The catamaran 1 is provided with a bow 3 which is common to both hulls and covers the open space between the hulls, covers respectively the hulls and the cargo unit 2. The bow 3 is removed from the bow portion of the catamaran with the In order to maneuver the cargo unit 2 into and out of the space between the catamaran's hulls. Preferably, the bow 3 oscillates as described in Figure 3, thereby pushing or pulling the loading unit 2 in or out of the space. Still, the bow 3 is secured to the catamaran 1 and the loading unit 2 in a suitable manner by means of couplings not described in the drawings.

Preferably, a stern 6 connects the two hulls, especially for large catamarans. The stern 6 therefore covers the stern of the cargo unit 1 and in all cases part of the two hulls and provides the catamaran 1 with the necessary rigidity.

The load unit 2 is also provided with ballast tanks as a separate unit. When the loading unit 2 moves towards the hull of the catamaran, the loading unit 2 can use the ballast system in cooperation with the catamaran ballast system, so that the loading unit can move inside the catamaran. The hull of the catamaran and by means of the ballast systems can be connected together by means of coupling 5, after which the bow 3 is balanced in place and equally secured with coupling.

Serious demands are connected to the couplings 5, which can be built on different principles. However, the couplings 5 must connect the hulls and the loading unit in such a way that during transport this unit substantially has the same properties as a ship with only one hull. This is achieved with coupling units that can be basically mechanical, hydraulic, pneumatic, electromagnetic, electrical, electronic or combinations thereof.

The load unit 2 can be arranged or suitably placed to receive different types of load. By means of a special loading ramp or trap door the loading unit 2 can be arranged in a spring by suitable connecting means and the loading unit, whereby it can be used for loading and unloading in accordance with the principle of row-row and loading and unloading independently of the times of arrival and departure of the catamaran. The loading unit 1 can additionally easily receive cars and other vehicles for operation as a ferry by arranging the loading unit on the dock with a trap door corresponding to the row-by-row solution.

Figure 3 schematically describes the transportation system adapted for offshore oil transportation. A load unit 2 is attached to a buoy or other type of oil transfer unit and is collected when the load unit is full. The loading unit 2 is brought into the opening of the catamaran 1 hull by means of the catamaran ballast systems and possibly the loading unit.

Ventilation plants, refrigeration plants and others, may be arranged on deck 4 of the catamaran, preferably as modules. These are connected to the load unit in a suitable manner when the load unit is firmly connected to the catamaran by means of the couplings 5. In this way, very easily the type of load can be considered as well as safety, such as by example ventilation or cooling during transportation of oil, gas, etc.

The transportation system is especially well suited for transporting volumes and transporting oil, although also in relation to known loading techniques, container transport, ferry operation and operation of general cost lines the present invention has many advantages.

The cargo units 2 can be moored for loading and / or unloading, with which the catamarans collect and take other units to the same port, depending on the situation.

Claims

R E I V I N D I C A C I O N S

1. - System of transportation and cargo handling based on the sea, comprising a catamaran-type boat, which has two helmets that are arranged at a distance from each other and a deck that connects the upper portions of the hulls; characterized in that the sides of the helmets facing each other, are adapted to move a load unit between them, the load unit occupies practically the space between the hooves, and in which couplings are disposed at the sides of the unit. load and on the sides of the hulls to ensure the interconnection of the cargo unit with the two hulls of the catamaran.

2. - System according to clause 1 above, c a r a c t e r i z a d in which the stern of the two hulls are connected to the common stern that covers the space between the hulls.

3. - System according to the preceding clauses, c a r a c t e r i z a d in which a common bow covers the two hulls and the space between the two hulls and is adapted for » be removable, at least of the space between the hulls, which allows the transportation in and out of the cargo unit from space.

4. - System according to clause 3, where the bow is adapted to oscillate around an axis near the deck, being horizontal and perpendicular to the longitudinal axis of the ship.

5. - System according to the preceding clauses, where a suitable connection is adapted to secure the cargo unit to the bow and possibly to the stern in such a way that a simple boarding unit is established.

6. - System according to the preceding clauses, in which the load unit is provided with a separate ballast system, preferably remote control from the catamaran. SUMMARY System of transportation and cargo handling based on the sea, comprising a catamaran-type boat, which has two helmets arranged at a distance from each other and a deck (4) that connects the upper portions of the hulls, where the sides of the helmets facing each other are adapted to move a load unit (2) between the hulls, the load unit practically occupies the space between the hulls, and couplings (5) are arranged on the sides of the unit of cargo and on the sides of the hulls to ensure the interconnection of the cargo unit (2) with the two hulls of the catamaran.