27results about "Moon-pools" patented technology

The invention relates to the technical field of ships, and discloses an ice flowing prevention device applied to a polar region ship moon pool, which comprises ice pushing manipulators, the ice pushing manipulators are arranged on the upstream and the downstream of the moon pool, and the ice pushing manipulators can push ice flowing to enable the ice flowing towards the moon pool to be far away from the moon pool; the underwater sound ice detector is mounted at the bottom of the ship, and the underwater sound ice detector can monitor position data of flowing ice in water relative to the ice pushing manipulator; the ice block crushers are installed at the positions, located on the upstream and the downstream of the moon pool, of the bottom of the ship, and the ice block crushers can crush flowing ice flowing to the ice block crushers; the ice stirring baffle is arranged at the bottom of the ship and located on the periphery of the moon pool, and when flowing ice flows through the ice stirring baffle, the flowing ice can be away from the moon pool along the outer surface of the ice stirring baffle; and the controller is electrically connected with the underwater sound ice detector, the ice pushing manipulator and the ice block crusher. Through the arrangement of the ice flowing prevention device, the flowing ice can be prevented from blocking the moon pool, and the flowing ice can also be prevented from colliding with underwater equipment.

The invention belongs to the technical field of ships, and discloses an energy dissipation device, a moon pool and a ship, the energy dissipation device is used for being arranged on the inner wall of the moon pool of the ship, and the energy dissipation device comprises a buffer plate arranged in the vertical direction and parallel to the inner wall of the moon pool; the perforated plate is arranged on the surface, deviating from the inner wall of the moon pool, of the buffer plate and is parallel to the buffer plate, a plurality of through holes for fluid to pass through are formed in the perforated plate, and each through hole penetrates through the perforated plate in the direction perpendicular to the buffer plate; the turbulent flow assembly is arranged on the face, away from the buffer plate, of the perforated plate and used for conducting flow guiding and dispersing on shaking fluid in the moon pool, the perforated plate is used for dissipating energy of the dispersed fluid, and the buffer plate is used for dissipating energy of the fluid penetrating through the perforated plate. According to the energy dissipation device, energy generated by fluid sloshing in the moon pool can be effectively dissipated, the amplitude and impact force of fluid sloshing are restrained, vibration and noise of equipment are reduced, and the safety, stability and safety of the equipment are improved.

The application belongs to the technical field of ships, and discloses an energy dissipation device, a moon pool and a ship. The energy dissipation device is arranged on the inner wall of the moon pool of the ship and comprises a buffer plate arranged in the vertical direction and parallel to the inner wall of the moon pool, a perforated plate arranged on the side of the buffer plate away from the inner wall of the moon pool and parallel to the buffer plate, a plurality of through holes for fluid passing being arranged on the perforated plate, each through hole penetrating the perforated plate in the direction perpendicular to the buffer plate, and a turbulence assembly arranged on the side of the buffer plate away from the perforated plate and used for guiding and dispersing the sloshing fluid in the moon pool. The perforated plate is used for dissipating the energy of the dispersed fluid, and the buffer plate is used for dissipating the energy of the fluid passing through the perforated plate. The energy dissipation device can effectively dissipate the energy generated by the fluid sloshing in the moon pool, suppresses the amplitude and impact force of the fluid sloshing, reduces the vibration and noise of the equipment, and improves the safety, stability and safety of the equipment.

The application discloses a kind of deep sea FPSO moon pool fluid resonance damping equipment and method, comprising the following steps: step one, assess the geometric structure of deep sea FPSO moon pool and its fluid dynamics characteristics, the geometric structure includes the size and shape of moon pool, the fluid dynamics characteristics include the flow rate and direction of fluid in a set period, adopt three-dimensional fluid dynamics simulation technique, calculate the resonance frequency of fluid in moon pool based on the geometric structure and fluid dynamics characteristics;Step two, based on the fluid dynamics data sample obtained by evaluation, design the layout and configuration scheme of damping equipment, the damping equipment includes at least three damping units. By accurately evaluating the geometric structure of moon pool and fluid dynamic characteristics, and using suitable damping equipment, the fluid resonance in the moon pool can be effectively reduced, thereby improving the structural stability and safety of FPSO. Reducing resonance phenomenon helps to prevent structural fatigue and prolong the service life of FPSO.

The present application relates to a kind of conjoined double moon pool operation system and its using method, the system is set in the middle of ship body, including blowout preventer group crane, blowout preventer group trolley, trolley converter, conjoined double moon pool, conjoined double moon pool is combined together by a small moon pool and a big moon pool, conjoined double moon pool both sides are longitudinally arranged trolley track, blowout preventer group trolley is placed in trolley track, and can be moved along the trolley track longitudinally, conjoined double moon pool tail transversely sets crane track, the blowout preventer group crane is placed in crane track, and can be moved along the crane track transversely.The present application can simultaneously meet the requirements of mud closed circulation drilling operation without marine riser and traditional marine riser drilling operation, realize the laying and recovery of underwater equipment and the suspension of mud return pipeline in two drilling operation modes, the setting of conjoined double moon pool has small waterline opening demand, improves the stability of ship body, and is beneficial to the overall arrangement of main deck.The whole system equipment is simple, and has strong compatibility, reduces investment cost.

According to a first aspect of the disclosure, there is provided a frame assembly for moving well intervention equipment relative to a moon pool in a floating vessel, the frame assembly comprising: a main frame configured to be moveable between a main frame parking position and a main frame operating position; a moveable subframe supported on the main frame for supporting and hanging off the well intervention equipment, said moveable subframe being configured to be moveable relative the main frame, between a subframe parking position and a subframe operating position.

The application discloses a moon pool system of a ship, the ship comprising a ship ballast device, the moon pool system comprising: a moon pool comprising a moon pool ballast device and a guide device; a moon pool bottom cover, the moon pool bottom cover draining water when the moon pool bottom cover is installed through the moon pool ballast device, the moon pool bottom cover comprising: a bottom cover air permeation device, the bottom cover air permeation device controlling water injection of the moon pool bottom cover; a bottom cover ballast device, the bottom cover ballast device controlling water injection of the moon pool bottom cover to adjust the barycentre and the centre of buoyancy position of the moon pool bottom cover; a bottom cover ballast device, the bottom cover ballast device draining water of the moon pool bottom cover after installation through the ship ballast device; a hoisting device, the hoisting device being arranged on a deck of the ship, the hoisting device installing the moon pool bottom cover to the bottom of the moon pool through the guide device. The application also discloses a method for installing a moon pool bottom cover of a moon pool system of a ship.

A vessel in various examples includes a hull, a moonpool, a tower column extending upward from deck on the hull, the tower column having a column axis, and at least one coupling device which is configured to couple with well intervention equipment, and which is disposed on the tower column so as to be movable around the column axis between a first position for storing the well intervention equipment, eg. above deck, and a second position for locating the well intervention equipment over the moonpool, e.g. for moonpool use. The well intervention equipment is in certain examples coiled tubing equipment comprising at least a coiled tubing injector head and a gooseneck. Examples of the tower and apparatus including the coupling device and methods of arranging the equipment for storage or moonpool use are also described.

The present invention discloses a ship moonpool mechanism with a double pulley system, comprising a moonpool channel and a moonpool ceiling located above the moonpool channel, wherein the inner wall of the moonpool channel is provided with a first slide rail and a second slide rail, wherein the first slide rail is provided with a first pulley, and the second slide rail is provided with a second pulley; the moonpool ceiling is provided with a lifting device connected to the first pulley and the second pulley, and the lifting device is used to drag the first pulley and the second pulley to either be raised or lowered independently or to be raised or lowered synchronously. The moonpool mechanism of this solution can adapt to a variety of lifting needs and can be applied to more usage scenarios. In addition, since two pulley systems are provided in this solution, when one pulley system fails, the other pulley system can be used to realize the mutual backup function between the two pulley systems.

The drag reduction device comprises a fixing frame and a connecting frame, separation rods are fixedly connected to the inner wall of the connecting frame at equal intervals along a straight line, rotating shafts are rotatably connected to the interior of the connecting frame at equal intervals along the straight line, and separation plates are fixedly connected to the outer sides of the rotating shafts; the invention relates to the technical field of drilling ship moon pool resistance reduction, and the resistance reduction device used in the drilling ship moon pool realizes the function of reducing fluid oscillation in the moon pool by arranging the connecting frame, the separation rod, the transmission mechanism, the separation plate, the swash hole, the adjusting mechanism, the swash frame, the rotating bracket and the swash column, so that the resistance of a ship can be effectively reduced; the transmission mechanism can drive the partition plate to rotate when the connecting frame moves downwards to make contact with the fixed frame, the rotating support can be driven to rotate for use when the partition plate rotates in cooperation with the adjusting mechanism, the partition plate can be driven to automatically rotate and be stored when the connecting frame is separated from the fixed frame, and the size of the device is reduced.

The application discloses a ship with a ROV system, which comprises a ship body and a ROV system, wherein the ROV system comprises a ROV body, a floating ball body and a ROV winding and releasing mechanism; the ship body is provided with an open deck, a ROV storage cabin and a moon pool; the ROV winding and releasing mechanism comprises a floating ball winding platform which is rotatable relative to the inner side wall of the ROV storage cabin, and can switch the floating ball winding platform between a storage position and a deployment position; when the floating ball winding platform is in the deployment position, the floating ball winding platform is parallel to the bottom of the ROV storage cabin and extends in the horizontal direction, and the floating ball winding platform at least partially protrudes from the first hatch; when the floating ball winding platform is in the storage position, the floating ball winding platform is perpendicular to the bottom of the ROV storage cabin, so that the floating ball winding platform is moved to the side outside the first hatch. The application is convenient for storing the ROV body, avoids the ROV body from occupying the space of the open deck, and is beneficial to the winding and releasing of the ROV body.

A drag-reducing separator plate for a moonpool, wherein the upper part thereof is a straight wall perpendicular to the sea level, the lower part thereof is connected to a baffle, and a connecting portion is connected between the straight wall and the baffle. The connecting portion may be in the shape of an arc. The shape of the drag-reducing separator plate matches that of the rear wall of the moonpool. During navigation, the drag-reducing separator plate is located in the middle or front of the moonpool, and can cooperate with a drag-reducing notch on the rear wall of the moonpool to greatly reduce the drag induced by intense sloshing of water in the moonpool during navigation of an offshore vessel. When offshore operations are performed under a station keeping condition, the drag-reducing separator plate is moved to the rear wall of the moonpool to avoid hindering the offshore operations.

The invention relates to a ship moon pool cover mounting process which is characterized in that moon pool covers are mounted on the upper side and the lower side of a ship moon pool and comprise an upper moon pool cover located on the upper side of the ship moon pool and a lower moon pool cover located on the lower side of the ship moon pool; the ship moon pool cover mounting process comprises the following steps: mounting an upper moon pool cover, namely mounting an upper moon pool cover accessory, mounting a connecting bolt, positioning a cover and welding a lower base; mounting of a lower moon pool cover: mounting of a lower moon pool cover accessory, mounting of the lower moon pool cover and mounting of a docking block; and carrying out tightness test. According to the ship moon pool cover installation technology, the load requirement of the upper moon pool cover is met, meanwhile, the use amount of steel of the upper moon pool cover can be reduced, the structural style of the upper moon pool cover is simplified, manufacturing, assembling and disassembling of the upper moon pool cover are facilitated, the lower moon pool can meet the water pressure requirement of 10 meters, and the ship moon pool cover installation technology is suitable for large-scale popularization and application. And the lower moon pool cover can be lifted from the moon pool cabin to a ship deck by using a crane on a ship.

A stabilisation assembly for use in deep water. The assembly comprises a telescopic spar for securement within a moon pool of a floating support vessel. The securement mechanism includes a gimbal joint secured within the moon pool through which the spar is suspended to allow movement of the vessel with respect to the spar during use.

An underwater excavation work cabin capable of moving in multiple directions is composed of a dangerous goods excavation work ship buoyancy ship body, an underwater excavation work cabin, an underwater excavation work cabin lifting device, an underwater excavation work cabin lifting guide structure, a compressed air pipeline, a crane, an underwater camera, an internal pressure monitor, an external water pressure monitor and the like. The underwater dangerous goods excavation working cabin is installed on a special working ship capable of being self-propelled and self-positioned, and the underwater excavation working cabin is placed underwater through an underwater excavation cabin lifting device installed on the ship till the bottom of the underwater cabin makes contact with the river bottom. Compressed air is injected into the underwater cabin through a compressed air system on the ship, and when the pressure of the compressed air is larger than the pressure outside the excavating cabin, water in the underwater cabin can be pressed out of the excavating cabin. Therefore, the river bottom of the coverage area of the excavation cabin is in a water-free state.

The invention belongs to the technical field of ships, and discloses a moon pool liquid level adjusting method and device and a ship. In the moon pool liquid level adjusting method, the working mode of a moon pool is determined to be a non-working mode; obtaining the liquid level height of the moon pool; comparing the liquid level height of the moon pool with a first threshold value; if the height of the liquid level of the moon pool is not smaller than the first threshold value, it is indicated that the liquid level of the moon pool is high at the moment, water in the moon pool needs to be drained immediately, otherwise, the draft depth of the ship can be increased, the stability of the ship is affected, and a drainage pump is started at the moment to pump out water in the moon pool; judging whether the liquid level height of the moon pool is reduced or not; and if not, the water quantity in the moon pool is not reduced, which may be caused by failure of the drainage pump, or the moon pool is greatly damaged, and the water discharge quantity of the drainage pump is lower than the water inlet quantity of the moon pool, so that the ballast pump is started at the moment to adjust the ballast condition of the ship so as to avoid overturning of the ship.

Arrangement (100) for use on a support surface (201) of a floating body such as a vessel (200), comprising: - a tool (103), adapted for coupling to an end of an elongated element (300); - a tool storage cradle (102), adapted for holding the tool (103) while being sea-fastened; - a skidding unit (101) displaceable over the support surface (201), the tool storage cradle (102) being comprised in the skidding unit (101), thereby allowing to transport the tool (103) over the support surface (201) from a storage location towards the elongated element (300), while being held in a storage position by the tool storage cradle (102), wherein the skidding unit (101) is adapted to guide the tool (103) while being brought from the storage position in the tool storage cradle (102) to a coupling position, thereby constraining movements of the tool (103) while bringing it into the coupling position.

A stabilization assembly for deep water. The assembly includes a telescopic mast for securing within a moon pool of a floating support vessel. The securing mechanism includes a gimbal secured within the moon pool by which the mast is suspended to allow movement of the hull relative to the mast during use.

The present application relates to a kind of ship moon pool cover installation process, moon pool cover is installed in the upper and lower sides of ship moon pool, including the upper moon pool cover of the upper side of ship moon pool and the lower moon pool cover of the lower side of ship moon pool;Ship moon pool cover installation process includes the following steps: the installation of upper moon pool cover, including the installation of upper moon pool cover accessory, the installation of connecting bolt, cover positioning and the welding procedure of lower base;The installation of lower moon pool cover, including the installation of lower moon pool cover accessory, the installation of lower moon pool cover and the installation procedure of dock pier;Tightness test.The ship moon pool cover installation process in the present application, while meeting the load requirement of upper moon pool cover, can also reduce the amount of steel of upper moon pool cover, and simplify the structure style of upper moon pool cover, facilitate the manufacture and disassembly of upper moon pool cover, while lower moon pool can meet the 10m water pressure requirement, and lower moon pool cover can meet the use of ship own crane and be hoisted from moon pool cabin to ship deck.

A stabilization assembly for use in deep water is provided, the assembly comprising a telescoping spar for anchoring within a moonpool of a floating support vessel, the anchoring mechanism including a gimbal-type joint secured within the moonpool, the spar being suspended by the gimbal-type joint during use to allow relative movement between the vessel and the spar.

An ocean-going vessel 1 of less than 24m in length having an above waterline plan area A, a forward end 11 and an aft end 13. The vessel comprises two longitudinally extending hulls 2, connected by a

The present disclosure relates to a skid docking and anchoring system with couplings, comprising a docking structure (100), an interchangeable skid (102) and a coupling skid (104). The docking structure (100) is formed by welded plates comprising a back plate (302) and a front plate (300). In addition, the back plate (302) features a groove for vertical attachment to the riser balcony (106). The front plate (300) comprises at least two front handles (304), at least four keys (306) located in the central region of the front plate (300), and at least four coupling supports (308) at the bottom of the front plate (300). Additionally, the coupling skid (104) comprises a welded truss structure (500), four coupling pins (502) and a tool basket (504).

The invention discloses a dam patrol detection unmanned ship which is particularly applied to dam hidden danger and dangerous case patrol, and belongs to the technical field of unmanned ships. The unmanned ship comprises a ship body, an electronic cabin, a moon pool, a battery cabin and a fuel oil power supply assembly, the electronic cabin, the moon pool, the battery cabin and the fuel oil power supply assembly are arranged on the ship body, the electronic cabin is arranged on the front portion of the ship body, the moon pool and the fuel oil power supply assembly are arranged in the middle of the ship body, and the battery cabin is arranged on the tail portion of the ship body. And the battery cabin and the fuel oil power supply assembly are jointly used as a power supply of the unmanned ship, so that the cruising ability of the unmanned ship is further improved. According to the unmanned ship, the moon pool is arranged on the ship body, related instrument installation space is reserved for monitoring function expansion of the unmanned ship, instruments with related monitoring functions can be positioned, clamped and fixed in the moon pool according to patrol requirements, unmanned ship customization according to various different monitoring functions is not needed, and therefore one unmanned ship can meet various patrol requirements; and resource waste is avoided, and the purchase cost is reduced.

The invention provides a moon pool structure of a drilling ship, and relates to the field of drilling ship equipment, the moon pool structure comprises a moon pool opening, a moon pool enclosure bulkhead and a moon pool bottom, and further comprises a flow guide buffer mechanism which is arranged on the inner side of the moon pool enclosure bulkhead in a surrounding mode and comprises a flow guide cover, a buffer plate and a hinge supporting assembly connected with the flow guide cover and the buffer plate; the sealing system is arranged on the periphery of the opening of the moon pool and comprises a sealing ring, a hydraulic actuator for driving the sealing ring and a sensor for sensing the height of waves; the telescopic protective fence is arranged on the edge of the opening of the moon pool and comprises a plurality of protective fence units, a telescopic mechanism for driving the protective fence units and a locking device. Wave impact is reduced through the flow guide buffering system, intelligent sealing adapts to different sea conditions, safe operation is ensured through telescopic protection, the structural service life is prolonged through the vibration suppression device, the working face is stabilized through the hydraulic compensation platform, the emergency system quickly responds to emergency situations, and the operation safety and operation efficiency of the drilling ship are comprehensively improved.

The invention relates to a vessel (1 ), especially a drillship or so-called drilling ship. The vessel comprises a hull (3) having a bottom surface (5) and a deck (7). Said vessel is provided with a moon pool (2), which extends from said bottom surface of the hull in an upward direction through the hull. Further, said vessel is provided with a cavity (10) located at a front side of the moon pool. Said cavity is at least partly open at a bottom side thereof in order to allow water to flow into said cavity. Moreover, said cavity is at least partly open at a rear side of said cavity in order to allow water to flow directly from said cavity into the moon pool, as a result of which moon pool sloshing can be diminished and the mean flow resistance of the vessel when sailing can be reduced.

The present invention discloses an intelligent floating platform for integrating deep-sea aquaculture and oil and gas extraction, comprising a cylindrical FPSO and a deep-sea aquaculture cage. The cylindrical FPSO comprises a main cylinder and a platform motion reduction structure arranged outside the main cylinder. The deep-sea aquaculture cage comprises a cage frame, a net, a cage extension cylinder, and a cage motion reduction structure. The net is arranged on the side of the cage frame, and the cage motion reduction structure is arranged circumferentially outside the cage extension cylinder. The main cylinder and the platform motion reduction structure serve as the top support structure for the cage frame, while the cage extension cylinder and the cage motion reduction structure serve as the bottom support structure for the cage frame. The cage frame is provided with a side support structure connecting the top support structure to the bottom support structure. A central support structure composed of a retractable moon pool plate is provided within the cage frame. The present invention combines a cylindrical FPSO with a deep-sea aquaculture cage, leveraging a large floating platform to fully utilize ocean space and leverage the advantages of deep-sea aquaculture.

The present invention provides an ocean-going vessel (1) of less than 24m in length having an above waterline plan area A, a forward end (11) and an aft end (13); the vessel (1) comprising: two longitudinally extending hulls (2), connected by a deck structure (4), that is suspended above the waterline of the vessel (1); a moonpool (10) comprising an aperture (12) having a perimeter P, extending through the deck structure (4) between the two hulls (2) for providing access to the water, a plurality of locking mechanisms (20) located on or near the perimeter P, for attaching a modular payload (100) to the vessel (1) over the moonpool (10); the moonpool (10) having an area M of at least 40% of A.