77results about "Hull double bottoms" patented technology

The invention provides a hull construction of a oil tank for transporting oil and fresh water by using all ballast tanks formed in a double hull space as fresh water tanks 4a-4e and 5a-5e, and two combining tanks 11, 12 are provided at a central portion of a hull for combining a sea water ballast tank and a fresh water cargo tank. In this manner, non-wasteful sailing of an oil tanker can be realized by utilizing the tanker for transporting oil cargoes on a forward route and fresh water on a backward route.

A bottom structure of a vertical corrugated bulkhead of a ship is characterized in that corrugated rib plates identical to the section of the corrugated bulkhead in shape are mounted and welded between a ship bottom plate and an inner bottom plate and at corresponding rib positions of the corrugated bulkhead to replace traditional planar solid rib plates, transitional reinforcement U-shaped toggle plates are mounted and welded at openings of notches at the upper ends of the corrugated rib plates and the lower end of the vertical corrugated bulkhead, U-shaped sides of the U-shaped toggle plates above the inner bottom plate are welded to a corrugated seal plate which functions in sealing the U-shaped toggle plates and facilitating cabin cleaning and serves as a discharging plate on a bulk freighter, U-shaped sides of the U-shaped toggle plates below the inner bottom plates are free sides, and horizontal reinforcement rib plates are welded close to the U-shaped sides of the U-shaped toggle plates. By mounting and welding the U-shaped toggle plates at the upper ends of the corrugated rib plates and the lower end of the vertical corrugated bulkhead, stress at the welding joint of the vertical corrugation bulkhead and the inner bottom plate is reduced while stress concentration is eliminated, and the corrugated rib plates can be thinned properly as compared with the corrugated bulkhead.

The invention relates to a new bilaminar bed plate floating shipway. The ships now in use sway in the storm and sink, with single function which has become a difficult subject to overcome. The invention consists of a large float, bilaminar bed plate, and the hanging platform. The large float is plane framework structure which is built by enfolding with ferroglass or metal plank outside, filling with epispastic non-water-absorb material inside. The steel bilaminar bed plate is fixed by the connecting pole. The hanging platform is fixed by supporting stand. Bar slots can be set on the large float and the bilaminar bed plate so to fend off the wave. The depth the bilaminar goes by under the water can be pre-configured or adjusted by installing lifting pole inside the connecting pole. It can be built into both monomer structure and fitting structure. It is safe, reliable and of wide usage. It services stable and fast which meets the needs people live, work, entertain on the water for a long period of time. It is of cheap costs so to promote generally.

The invention discloses an inclined double-bottom ship based on four-center alignment connection of an inner bottom plate and a side horizontal girder. The inclined double-bottom ship comprises a side and a bottom part, wherein the side and the bottom part are of a double-layer structure, the two sides of the bottom part are of inclined structures, the middle part of the bottom part is of a straight structure, an inclined inner bottom plate (1) and the side horizontal girder (2) are made of a whole bending plate, flat plate structures at the two sides of the bending part of the bending plate are respectively used as the inclined inner bottom plate (1) and the side horizontal girder (2), the inclined inner bottom plate (1) and the side horizontal girder (2) are respectively connected with a side inner shell plate (4) and an inner bottom edge stringer (3) at the upper part and lower part of the bending part, and then centerlines of the four plates are crossed into a point. The inclined double-bottom ship has the advantages that the anti-fatigue strength is effectively improved, the structure weight is reduced, the workload of welding and grinding is reduced, the construction and processing technology is simplified, the working efficiency is improved, the cost is low, and the strength is high.

The invention discloses a low-noise separation type underwater sightseeing three-body yacht. The low-noise separation type underwater sightseeing three-body yacht comprises a yacht body, a depth-adjusted depth underwater sightseeing cabin and a width-adjusted side body and is characterized in that the depth-adjusted depth underwater sightseeing cabin is connected with a lifting control platform in a lifting control chamber in the yacht through a lifting mechanism, and the lifting mechanism drives the depth-adjusted depth underwater sightseeing cabin and the yacht body to be attached and separated through body lifting machine hydraulic mechanisms (13) at the two ends of the lifting mechanism; the body lifting machine hydraulic mechanisms are mounted at the attaching position below a deck on the bottommost layer of the yacht body; and the output ends of the mechanisms are connected with a computer through a data line. The low-noise separation type underwater sightseeing three-body yacht has the advantages of being low in noise, small in vibration, wide in navigation area, good in stability and the like.

A complete double-hull cargo containment vessel includes a primary hull and a secondary hull disposed within the primary hull. The primary hull includes a topside deck structural member. The secondary hull includes an interior cargo containment tank. The secondary hull includes a topside structural member configured to seal the cargo containment tank. The primary hull is configured to serve as a first boundary between an operating environment of the vessel and the cargo. The secondary hull is configured to serve as a second boundary between the operating environment of the vessel and the cargo. The topside deck member of the primary hull and the topside structural member of the secondary hull are configured to provide a double-hull on the topside of the cargo containment tank.

The invention discloses a method for designing an overall-width flat-inner-bottom liquid cargo ship, belongs to the technical field of shipbuilding, and relates to a structural design method of an inner bottom in a double-bottom ship and a bottom side tank area of a bilge area. The method comprises the steps that a flat outer bottom, the bilge area, a side, a bottom side tank cantboard, an inner shell and a flat inner bottom are parallelly arranged at the bottom of the ship, the flat outer bottom is connected to the side through the bilge area, the flat inner bottom is connected to the bilge area or the side through an extension flat inner bottom, and the flat inner bottom is connected to the inner shell through the bottom side tank cantboard. According to the method for designing the overall-width flat-inner-bottom liquid cargo ship, the flat inner bottom is connected to the side through the extension flat inner bottom arranged in the bottom side tank, so that the flat inner bottom and an extended bottom area form a void space, the weight of ballast water for the ship reaches or is close to a minimum value of a dedicated ballast tank required by the MARPOL convention, so that energy consumption is reduced, and the purpose of energy conservation is achieved. Because the flat inner bottom serving as the bottom of the ballast tank is more beneficial for removing sediment, and theusing convenience is improved; and the structural continuity of the flat inner bottom can better transmit load, stress concentration is reduced, and the structural strength is improved.

The invention provides a liquefied natural gas transport ship and a liquefied natural gas transport system, and relates to the technical field of oceans. The ship body comprises a double-layer bottomplate, a double-board side plate and a single-layer main deck; the double-layer bottom plate comprises a ship bottom outer plate, a ship bottom inner plate and a ship bottom rib plate; the double-board side plate comprises a board side outer plate, a board side inner plate and a board side reinforcing frame plate; the single-layer main deck comprises a deck body and a deck reinforcing structure; the ship bottom inner plate, the broad side inner plate and the deck body form a liquid tank cabin in a surrounding mode, and the deck reinforcing structure is arranged on the outer side face of the deck body. The liquefied natural gas transport system comprises the ship. The technical problems that in the prior art, the capacity of a ship body structure cabin of an LNT A-BOX type liquefied gas ship is small, the overall weight of the ship body is heavy, the top in the cabin is low, the laying of a secondary screen wall and the construction process of a supporting structure are difficult, the period is long, the cost is high, and the maintenance difficulty in the cabin is large are solved.

A double-hulled tanker of not less than of not less than about 2,000 metric tons deadweight in size which is suitable for the transportation of liquid hydrocarbons and meeting the requirements for the United States Pollution Act of 1990 and similar international regulations, said tanker comprising an inner hull and an outer hull separated by a void, said inner and outer hulls being constructed of high strength, light weight, reinforced and prestressed concrete.

The invention provides a floating type folding assembling ship, which comprises a ship bottom, a ship structure beam, shipboards, shipboard butt joint fixing clamps, a soft material bow, a bow framework and a double-tail balance rudder. The ship bottom is a sealed double-layer ship bottom with a certain volume and is divided into three sections; the ship structure beam is divided into three sections corresponding to the ship bottom, the three sections are respectively fixed to the corresponding ship bottom, the three sections of structure beams are connected and combined through hinged connecting rods, and folding assembly and unfolding assembly of the whole ship can be realized; each shipboard and a handrail on the upper edge of the shipboard are integrated and are fixedly connected to the ship structure beam through a special hinge, wherein the left shipboard and the right shipboard of a stern are connected to triangular plates at the tail ends through the hinges and sealing strips,so that the ship body is trapezoid, and the rear shipboard of the stern is of an erected structure, is a fixing plate after triple folding when the whole ship is folded and is fixedly connected to themiddle bottom of the ship, so that the folded cube is not dispersed; the double-tail balance rudder is formed by two independent wedge-like bodies with a certain hollow volume and is provided with acommunication hole for communicating the internal water level with the outside, and the balance capability is achieved when the ship body fluctuates instantly.

The invention discloses a ship based on an oblique double-bottom arc-shaped bilge. The ship comprises a flat outer bottom (1) and a flat inner bottom (3) which are arranged at the bottom of the ship in parallel. The flat outer bottom (1) and the flat inner bottom (3) are respectively connected with an oblique outer bottom (21) and an oblique inner bottom (23) which are arranged in parallel and extend towards a broadside (7). The inclination angles of the oblique outer bottom and the oblique inner bottom are larger than 5 degrees but smaller than 25 degrees. The oblique outer bottom (21) and the broadside (7) are in transition connection through the arc-shaped bilge (2) which is tangent to the oblique outer bottom (21) and the broadside (7) respectively. The oblique inner bottom (23) is connected to an inner shell on the inner side of the broadside (7) through an oblique baseplate (5) at an inclination angle B. The B satisfies the condition that (45+A) degrees < B< (65+A) degrees. Through transition connection of straight lines and arcs and reasonable design of ends, loads are effectively transmitted, stress concentration is reduced, and structural strength is improved.

The invention provides a portable deep-sea mining ship type, which includes a main hull, a straight-through splint arranged on the main hull, and a moon pool vertically penetrating through the main hull for deploying mining equipment and ore recovery operations, the moon pool It is arranged in the middle of the main hull. The stern of the main hull is square and the bow is a flying scissor type. Lateral channel thrusters, and the superstructure is arranged at the bow of the main hull. The invention provides a portable deep-sea mining ship type that can fully improve the utilization rate of the cabin capacity, reduce the drainage volume, and has a large deck area, while meeting the requirements on structural strength, general layout and performance.

The invention discloses a groove-shaped bulkhead connecting assembly and a ship. The groove-shaped bulkhead connecting assembly comprises a groove-shaped bulkhead installed on a bottom plate of the ship, the bottom plate of the ship comprises an inner bottom plate and an outer bottom plate which are arranged in a spaced mode, and a bottom bench is arranged between the outer bottom plate and the inner bottom plate; the bottom bench comprises a first oblique plate and a second oblique plate which are arranged in a spaced mode, the upper ends of the first oblique plate and the second oblique plate are both connected with the inner bottom plate in a welded mode, and the lower ends of the first oblique plate and the second oblique plate are both connected with the outer bottom plate in a welded mode; and the distance between the upper end of the first oblique plate and the upper end of the second oblique plate is smaller than the distance between the lower end of the first oblique plate and the lower end of the second oblique plate, and the groove-shaped bulkhead is welded on the inner bottom plate and located between the first oblique plate and the second oblique plate. According to the groove-shaped bulkhead connecting assembly and the ship, compared with the prior art, the bottom bench can not occupy the hold capacity of a cabin, and the weight of a ship body structure is lightened, and the situation that a narrow construction space appears in the cabin is avoided.

The invention discloses a slanted double-bottom and arc-bilge ship with inner bottoms aligned directly. The slanted double-bottom and arc-bilge ship comprises a flat outer bottom (1) and a flat inner bottom (3) arranged at the ship bottom in parallel. The flat outer bottom (1) and the flat inner bottom (3) are respectively linked with a slanted outer bottom (21) and a slanted inner bottom (23) which are arranged in parallel, have the slant angle A and both extend to a broadside (7); the slant angle A is larger than 5 degrees but smaller than 25 degrees. The slanted outer bottom (21) and the broadside (7) are in transitional connection through an arc bilge (2) which is tangent with the two respectively. The slanted inner bottom (23) is directly connected to an inner hull (4) on the inner side of the broadside (7). According to the direct alignment connection and the design of reasonable arrangement of various structural angles, load is transmitted effectively, stress concentration is decreased, and structural strength is improved.

The invention discloses a bottom structure of a container ship with bottom longitudinal girders centrally arranged. The bottom structure comprises an outer bottom plate and an inner bottom plate whichare arranged from bottom to top. A plurality of containers are arranged on the upper end surface of the inner bottom plate, and the multiple containers are fixed to the inner bottom plate through a plurality of box legs arranged on the inner bottom plate in a penereating mode at equal intervals, longitudinal ribs are arranged at the multiple box legs on the lower end surface of the inner bottom plate at equal intervals, the outer bottom plate is provided with a plurality of longitudinal ribs with upper positions and lower positions corresponding to the longitudinal ribs disposed on the lowerend surface of the inner bottom plate, and the multiple longitudinal ribs are arranged in parallel with the center line of the breadth; a plurality of heavy-type bottom longitudinal girders are arranged on the upper end surface of the outer bottom plate laterally; a plurality of light-weight bottom longitudinal girders are arranged between the heavy-type bottom longitudinal girders parallelly; anda plurality of solid rib plates are arranged on the upper end surface of the outer bottom plate longitudinally. The bottom structure for the container ship can increase bottom modulus margin and enhance bottom stiffness through the longitudinal girders disposed near a midship area at intervals and the solid rib plates arranged near a shipboard area, and has the advantages that the cost is cost and the strength is high.

The invention relates to an opening anti-fatigue arrangement structure and method of ship double bottoms and belongs to the technical field of ship upright arrangement structures. The opening anti-fatigue arrangement structure of the ship double bottoms is characterized in that square holes are formed in the positions, located on the left side and the right side of an upright, at the inner bottom of the ship double bottoms correspondingly and each internally provided with a rectangular metal box body, and the side faces of the rectangular box bodies are fixed to watertight ribbed plates between the ship double bottoms and the side face of the upright in a welded mode. According to the opening anti-fatigue arrangement structure and method of the ship double bottoms, flexible connecting of the upright and the double bottoms of the ship is achieved, and the phenomenon that the local stress is overlarge when the box bodies are slightly transformed is avoided; and the anti-fatigue strength of the connecting positions of the upright and the double bottoms are greatly promoted, and reliability is promoted.

System for evacuation of personnel from a capsized vessel via a lockable escape hatch (103) in the bottom of said vessel, characterized in that the system comprises a first lockable escape hatch (105), said first lockable escape hatch (105) leads to an evacuation room (107), said room (107) is provided with a second lockable escape hatch (103), said room (107) is illuminated by lamps (201) receiving energy from a battery pack (202) not connected to the said vessel's energy system, said first and second lockable escape hatch (103, 105) cannot be opened simultaneously, in relation to said first lockable escape hatch (105) it is connected a device (106) for climbing, said climbing device (106) unfolds when the said vessel has a lopsidedness in excess of a pre-determined number of degrees.

There is disclosed a vessel having a double bottom, in which double bottom cooling water passage means are provided and in which heat exchangers coupled to said cooling water passage means are disposed. In particular, the heat exchangers are disposed in channels extending in the longitudinal direction in the double-walled bottom of the vessel. Selective closure of certain channels makes it possible to carry out maintenance and repairs, at sea, on the heat exchanger(s) present therein during normal operation of the vessel based on a forced flow.

The invention relates to the technical field of ships, in particular to a cargo transport ship. The cargo transport ship includes a ship bottom, a ship side fixedly connected to the ship bottom, and a propulsion device for providing driving force; the ship bottom and the ship side form a cabin; it is characterized in that the ship bottom is a double-layer structure , including an inner ship bottom and an outer ship bottom arranged in parallel and arranged at intervals; a plurality of sealed cavities are arranged between the inner ship bottom and the outer ship bottom. The above-mentioned cargo carrier does not need ballast water and can reduce construction costs.

The invention relates to a floating type production oil storage device with a dry type ballast piping system. The floating type production oil storage device comprises a ship body, the ship body comprises a larboard side, a starboard side, a double-layer bottom connected with the bottom of the larboard side and the bottom of the starboard side and a main deck connected with the top of the larboard side and the top of the starboard side; a process deck is arranged on the main deck; A cabin is formed among the larboard side, the starboard side, the double-layer bottom and the main deck, the larboard side, the starboard side and the double-layer bottom are each of a double-layer shell structure, the two sides of the double-layer bottom communicate with the larboard side and the starboard side correspondingly to form a ballast tank, and the double-layer bottom is provided with a ballast pipe tunnel in the length direction of a ship body; and the ballast tank is divided into a larboard ballast tank body and a starboard ballast tank body by the ballast pipe tunnel. When the floating production oil storage device is overhauled, the interior of the ballast tank does not need to be emptied, and a maintainer only needs to enter the ballast pipe tunnel for overhauling, so that the complexity of overhauling operation is reduced, and walking of the maintainer is facilitated.