RU2630513C1 - Device for loading, transporting and installing heavy and bulky marine underwater object on seabed - Google Patents

Abstract

FIELD: transportation.

SUBSTANCE: device for loading, transporting and installing a heavy and bulky marine underwater object on the seabed, including a catamaran-type vessel having two hulls and load-lifting mechanisms, rigidly interconnected by means of a bridge, as well as a transfer floating dock with a ballast system, a dock floor with keel blocks located thereon, a docking device of the transfer dock with a transfer slip, a means of putting the floating transfer dock with the vessel and the underwater object fastened between its hulls into a deep-water ditch. The load-lifting mechanisms are placed on the deck with the arrangement along the ship in a row on each side of the vessel diametrical plane and are represented by functioning load-lifting mechanisms of group action with the total load capacity up to 16,000 tons, equipped with load-bearing ties up to 1,000 m.

EFFECT: improving the performance indices and increasing the safety level of the device for loading, transporting and installing a heavy and bulky object on the seabed.

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Description

The invention relates to the field of shipbuilding and marine transport and relates to the issue of loading, transporting and installing heavy and large-sized marine underwater objects on the seabed, which include, in particular, oil and gas production equipment for the extraction of minerals from sea soil.

Known catamaran type vessel "Titan" with lifting means in the form of a cargo crane, which can be used for loading on it marine underwater objects, transporting and lowering them from the vessel using load-bearing links of the cargo crane of the vessel to the sea depth and installation on the seabed (Cooperation USSR and Finland in the field of shipbuilding: Collection of articles / Edited by Yu.N. Gorbachev. - L .: Shipbuilding, p. 433-434 1990. - 456 p.) - prototype. The ship is equipped with a cargo crane installed on its deck, having a carrying capacity of 600 tons and cable-carrying ties that allow lowering sea objects to the seabed from a vessel to a depth of 60 m. Loading of underwater sea objects is carried out from the shore or from a special floating vessel using lifting equipment (cargo crane) located and fixed on the deck of the vessel. After transporting the marine objects on the vessel to the place of their installation on the seabed, they are lowered from the vessel using the load-bearing ties of the cargo crane of the vessel.

However, the lifting means (cargo crane) of the prototype catamaran ship have a carrying capacity of up to 600 tons and can provide loading onto the vessel and launching to the sea bottom of an underwater sea object weighing no more than 600 tons and only at shallow depths not exceeding 60 m. In addition, it is not safe to transport a large underwater marine object on the deck of such a vessel. In this connection, the vessel with its lifting means cannot provide loading of heavy (over 600 tons) large-sized marine objects, the mass of which significantly exceeds the indicated value and can reach up to 16,000 tons, launching objects for installation on the seabed with depths reaching up to 1000 m as well as the safe transportation of a heavy, bulky offshore underwater facility.

The objective of the invention is the provision of loading onto a catamaran type vessel of a heavy (up to 16,000 tons) large-sized marine underwater object (s), transportation and descent from the vessel to depths of up to 1000 m for installation on the seabed in a designated place, as well as safe transportation of the object.

For this, a loading, transporting and installation device on the seabed of a heavy and large-sized marine underwater object, including a catamaran type vessel, having two rigidly interconnected by a hull bridge, and lifting mechanisms having load-bearing connections located on the bridge deck, are introduced according to the invention a floating floating dock having a ballast system, a slipway deck with keel blocks located on it, a docking device for a floating floating dock with a transfer slipway, and dstvo output gear of deep-sea trench from a ship floating dock and unfastening between its hulls submerged object. At the same time, the catamaran type vessel is equipped with devices for detaching the marine underwater object between its hulls in the form of saddles and pneumatic fenders located on the inner sides of the hull, and its load-lifting mechanisms are placed on the deck along the vessel in a row on each side of the ship’s diametrical plane and represent as functioning load-lifting mechanisms of group action with a total load capacity of up to 16,000 tons, and are equipped with load-bearing links up to 1000 m long.

The presence of a floating transfer dock as part of a device for loading an underwater marine object onto a ship, as well as devices for detaching a marine underwater object in the form of saddles and pneumatic fenders, allows for the placement and unfastening of a heavy bulky marine object between the hulls of a catamaran type vessel and reliable and safe transportation of large-sized marine underwater object to the place of its installation at the bottom of the sea.

The use of lifting mechanisms of group action located in a row on each side of the diametrical plane of the vessel with a total lifting capacity of 1000-16000 tons and their load-bearing connections with a length of over 100 m, provides loading with fastening on the hulls of the vessel and the launch of a heavy and bulky marine underwater object or equipment, and the length of their load-bearing ties allows you to lower objects to the seabed to depths reaching 1000 m.

The invention is illustrated by drawings, where in FIG. 1 shows a device for loading, transporting and installing a heavyweight large-sized marine underwater object (s) on the seabed, into the transfer floating dock of which a catamaran-type vessel with an underwater marine object fixed between its hulls is attached, and FIG. 2 is a plan view of a ship in a transfer floating underwater marine object, and FIG. 2 is a plan view of a ship in a transfer floating dock of FIG. 1 with a layout of group lifting devices on a ship deck.

The device contains a floating floating dock 1 having a ballast system (not shown in the figure), a slipway deck 2 with kilblocks 3 located on it, a catamaran type vessel 4 having two hulls 6 rigidly interconnected by a bridge 5, equipped with hoisting mechanisms 7 with load-bearing ties 8 and means of unfastening the marine underwater object 9 on the inner sides 10 of the hulls 6 of the vessel 4 in the form of saddles 11 and pneumatic fenders 12 (Fig. 1). The load-lifting mechanisms 7 of the vessel 4 are placed on its deck and are located along the vessel 4 in a row on each side of the diametrical plane of the vessel, and as a result they are load-lifting mechanisms of group action with a total carrying capacity of up to 16,000 tons, and are equipped with load-bearing links 6 up to 1000 m long (Fig. 2). The device includes a docking device for the transfer floating dock 1 to the transfer berth (not shown in the figure) and a means for outputting the transfer floating dock with a ship and with a marine underwater object to a deep-sea foundation pit, which can also be used as ordinary towing vessels (not shown shown).

The operation of the device is as follows.

The loading of a heavyweight large-sized marine underwater object 7 with a mass significantly exceeding 600 tons and reaching thousands of tons is carried out on a catamaran type 4 vessel in a transfer floating dock 1 having a ballast system (not shown in the figure), into which vessel 4 is preliminarily floated (Fig. . one). Then, using the docking device (not shown) of the transfer floating dock 1 to the transfer stock of the plant (not shown), they are docked, and using self-propelled kilblocks 13 of the transfer stock, the marine underwater object 9, which is located on the deck-deck 2, is located between the hulls 10 of the vessel 4. Then, pumping out the ballast of the dock 1, the dock is raised until the kilblocks 3 of its slipway deck 2 are in contact with the hulls 10 of the vessel 4. Next, lifting the sea underwater object 9 using load-bearing links 8 load-lifting m group action mechanisms 7 of the vessel 4, placed on the deck of the vessel and located in a row on each side from the diametrical plane of the vessel 4 with a total lifting capacity of 1000-16000 tons (Fig. 2), until it contacts the saddles 11 on the hulls 10 of the vessel, fasten it between the hulls vessel using pneumatic fenders 12 of the vessel 4 (Fig. 1). Then, self-propelled kilblocks 13 (Fig. 1) are removed from the slipway deck 2 to the transfer slipway and, undocking the transfer floating dock 1 from the transfer slipway, output dock 1 with the submerged vessel 4 with the marine underwater object 9 fixed between its hulls to the deep-sea foundation pit using means of output or using tugs. Then, ballasting the transfer floating dock 1, immerse it in water together with the submerged vessel 4 until the vessel 4 emerges with the marine object 9 and separates the vessel from the dock blocks 3 of the dock 1. After that, the marine underwater object 9 on the vessel 4 is transported to its place in the sea where the descent of the marine underwater object 9 is carried out using load-bearing links 8 lifting mechanisms of group action 7 of the vessel 4, and install it on the surface of a solid base (not shown), equipped on the seabed.

The proposed device provides loading onto a catamaran vessel of a heavy type (up to 16,000 tons), a large-sized marine object (s), its transportation and descent from the vessel to sea depths of up to 1000 m for installation on the seabed in a designated area of the water area, as well as safe transportation of the object, what distinguishes it from the prototype.

Claims (1)

A device for loading, transportation and installation on the seabed of a heavy and large-sized marine underwater object, including a catamaran type vessel, having two rigidly interconnected by a hull bridge and load-bearing mechanisms located on the deck of the bridge, having load-bearing connections, characterized in that its composition a floating floating dock with a ballast system, a slipway deck with kilblocks located on it, a docking device for a floating floating dock with a transfer slipway were introduced there is also a means for withdrawing a floating transfer dock with a vessel and a marine underwater object attached between its hulls to a deep-sea foundation pit, while the catamaran-type vessel is equipped with devices for detaching the marine underwater object between its hulls in the form of saddles and pneumatic fenders located on the inner sides of the hulls, and its load-lifting mechanisms are placed on the deck with the arrangement along the vessel in a row on each side of the diametrical plane of the vessel and are functioning cargo group-action lifting mechanisms with a total lifting capacity of up to 16,000 tons, equipped with load-bearing ties up to 1000 m long.

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