摘要:
Disclosed is a capsular-type underwater release lifeboat that can be operated in davit mode, freefall mode and underwater mode. The lifeboat comprised of an outer shell, and fitted inside with engines that aid in forced and normal propulsions of the lifeboat. Two air pockets are arranged in both the ends of the outer shell to sustain underwater pressure and to aid increased buoyancy of the lifeboat. A fixed Emergency Positioning Indicating Radio Beacon (EPIRB) is provided inside the lifeboat for rescuers to easily locate the survivors and a double water tight entrance door is formed on the top portion to resist the underwater pressure. The present invention also provides a method for releasing the lifeboat underwater. The reinforced lifeboat discussed herein shall be deployed on the sea and also underwater in order to rescue the people during a disaster in the sea vessel.
摘要:
The present application provides a launching arrangement for a lifeboat from an offshore installation. The launching arrangement may include a garage for the lifeboat, a gate of the garage that can be opened by gravity, wherein the lifeboat can be launched either as a free fall lifeboat or by a fall of a lifeboat winch in case of an emergency situation and while a power supply is off, and wherein the garage is equipped with the gate with a wire rope winch, a lower hydraulic cylinder, and an upper hydraulic cylinder; and the gate of the garage opens by gravity by simultaneous operation of a wire rope winch of the gate and the lower hydraulic cylinder and the upper hydraulic cylinder, both hydraulic cylinders working as a closed hydraulic system; and the lower hydraulic cylinder and the upper hydraulic cylinder including piston rods.
摘要:
A coupling for coupling a fall (26) to a lifeboat (1) comprising locking portions and a receiving portion constituting a hollow (10) having a open end and an upwardly facing aperture (15). The locking portion (25), hollow (10) and aperture (15) having a form preventing the locking portion (25) from passing through the aperture (15). The coupling further comprises actuators (30, 35, 39) controlled by a controller (40). A string (27) may be provided for easy retrieval of the locking portions upon the retrieval of the lifeboat (1).
摘要:
The invention relates to means for launching into the water, from a height H greater than a predetermined height hmax, a life-saving means (1) designed to be able to be launched into the water in free fall from this maximum height hmax. One end of a halyard (4) is fixedly hooked to the life-saving means or to the launch site (2); the halyard functionally cooperates (at 7) respectively with the launch site or the life-saving means so that the life-saving means falling by gravity is braked on and/or by the halyard over at least one part (H-hmax) of its drop height. By controlling the braking effect, the life-saving means, falling from the height H in a braked manner over at least one part (H-hmax) of this height hits the surface of the water (5) with a kinetic energy not exceeding that which it would have at the end of a non-braked free fall from at most the height hmax.
摘要:
A device for and method of fixing vertically installed cargo pressure tanks (2), particularly the type used for sea transport of pressurised petroleum products, wherein at least two cargo pressure tanks (2) constitute a liftable cassette (1), the tanks (2) of which preferably are placed in the upright position on a cassette lifting frame (4) and are interconnected by means of a guide frame (6).
摘要:
A dock, for launching and recovery of a lifeboat, rescue boat or like small boat on a vessel, a floating platform or a fixed installation. The boat (14) is normally stored on the dock. The dock is provided with buoyant elements (1) fixed to a frame (3). The boat (14) is supported in a cradle (2) within the frame (3). On launching and recovery of the boat (14), the dock is lowered to a floating position on the surface of the water. In order to fix the boat (14) to the dock, a locking device (9, 15) is provided. By modifying the configuration and size of the buoyant elements, the dock is given rolling and pitching periods which coincide as closely as possible with those of the boat (14). The dock and the boat (14) will thereby behave in approximately the same manner in the water, which makes it relatively simple to run the boat (14) into the dock even in a very heavy sea. When the boat (14) has been introduced into the dock, it is in contact with the dock at least two points, and the boat (14) and the dock are then fixed to one another by a locking device (9, 15) to form a cohesive unit.
摘要:
A personal watercraft mooring system is set forth which includes a vessel, such as a pontoon boat, houseboat or deck boat and a mooring at the vessel's stern adapted to berth at least one personal watercraft. According to one embodiment, the mooring can also be displaced to reduce drag imposed by it on the system. In another embodiment, the mooring can be raised from the water to stow the watercraft.
摘要:
A system for launching a lifeboat (11) from davits (12) on an offshore drilling platform (10) comprises a submerged buoyancy device (10) tethered to the bow of the lifeboat (11) by a cable (13) which passes between the buoyancy device and the lifeboat. The cable is retained by a release mechanism (14) attached to the platform just above the water line and extends upwardly from a guide fairlead (18) attached to the sea bed, between the latter and the lifeboat (11). In some cases the release mechanism (14) may be omitted or alternatively two release mechanisms may be provided above the water line.
摘要:
A system for handling a remote vessel from a mother vessel comprising: a messenger/manipulating line intercepting member extending upwardly from the remote vessel; a line capturing device associated with the line intercepting member; line traversing device for transferring the line to the line capturing device; a messenger/manipulating line associated with the mother vessel for engaging the line intercepting device and capturing by the line capturing device of the remote vessel; and a winch associated with the messenger/manipulating line for manipulating the remote vessel. For one embodiment of the invention, the system may additionally include a line capturing and lifting hook attached to the remote vessel; a hoisting winch and hoisting cable with hook for attachment to the lifting hook attached to the remote vessel; and a second messenger line for releasable attachment to the hoisting cable for capture by the lifting hook and to provide attachment of the hoisting cable to the lifting hook.
摘要:
The safety clutch includes a first tubular part (1), a second tubular part (13) and a plurality of locking members (5) co-operating with the parts in such a manner as to establish therebetween a releasable connection. The locking members (5) have inclined abutting surfaces (11) orientated so that the engagement between the surfaces and a corresponding abutting surface (12) on the second part (13) exerts a radially outward force on the locking members (5). The force is transmitted over axially parallel locking surfaces (16) to a corresponding locking surface (19) on an encircling locking ring (18) which in the locked position of the clutch mechanically prevents the locking members (5) from disengaging the second part (13). The releasing force of the clutch is thus closely associated with the frictional force existing between the locking surface (16 and 19) and which in practice may have any desired value. A spring-biassed and axially displaceable release ring (25) for releasing the clutch is arranged around the locking ring (18 ). Dependent upon the allowed axial displacement of the release ring (25) it is obtained that the force transmitted to the locking ring is either equal to the force of the inserted spring or is directly equal to the force exerted on the release ring (25). This opens up the prospect of obtaining in a simple manner a safe release of the clutch in the off-load case as well as in the on-load case.