141results about "Hull bulkheads" patented technology

The invention belongs to the technical field of low-temperature liquid cargo storage, and particularly relates to an enclosure structure and an enclosure system at a dome corner area of a low-temperature liquefied gas storage tank, and the enclosure structure is arranged at the junction of a dome in the low-temperature liquefied gas storage tank, the top surface of a cabin and a front / rear bulkhead; comprising a corner insulation box connected to a corner, and a plane insulation box connected to a wall surface in the extension direction of the two ends; the corner area secondary-layer steel plate is attached to the inner side of the corner of the corner insulation box, and the corner area main-layer steel plate is welded to the inner side of the corner of the corner area secondary-layer steel plate through the connecting plate. The secondary shielding layer is attached to the surface of the insulation box and is welded with the corner area secondary layer steel plate; the main shielding layer is arranged on the inner side of the secondary shielding layer and is welded with the corner area main layer steel plate; and a supporting fixing plate is arranged between the two. Compared with the prior art, the problems that when an existing enclosure system structure is applied to the dome, stress is large, deformation is large, and structural stability is poor are solved. According to the scheme, the sealing performance and the use reliability of the low-temperature liquefied gas storage tank at the dome corner area are guaranteed.

The invention belongs to the technical field of ship construction, and discloses a bulkhead supporting structure and a ship. The bulkhead supporting structure is used for supporting a top plate, the top plate is used for bearing a groove-shaped bulkhead, the bulkhead supporting structure comprises a side vertical plate and a supporting assembly, the side vertical plate abuts against the top plate in the vertical direction, and the side vertical plate is arranged right opposite to a first panel of the groove-shaped bulkhead in the vertical direction; the supporting assembly comprises a supporting cross beam, the two ends, in the length direction, of the supporting cross beam are connected to the side walls of the ship body, the supporting cross beam abuts against the top plate in the vertical direction, and the supporting cross beam directly faces the second panel of the groove-shaped bulkhead in the vertical direction. The bulkhead supporting structure is only provided with the side vertical plate on one side, the upper groove-shaped bulkhead is powerfully supported, meanwhile, structural materials are reduced, the dead weight of a ship is reduced, meanwhile, the side vertical plate on the other side is omitted, the construction space and the cargo space are released, the construction environment is improved, and then the building efficiency of the ship is improved.

The application provides a fall-preventing triangular profile structure and a mounting method. The triangular profile structure comprises a triangular cross-section structure formed by sequentially connecting a first side 1, a second side 2 and a third side 3; an angle alpha between the second side 2 and the third side 3 is 90-120 degrees; an angle beta between the first side 1 and the second side 2 is 30-60 degrees; the length of the third side 3 is less than the length of the first side 1; and an anti-skid structure is arranged on the bottom surface of the third side 3. The technical scheme can simplify the construction process, improve the operation flexibility, and save the construction cost.

A method and system for fumigating a vessel includes delivering a fumigation agent to a cargo area of ​​the vessel. In particular, the vessel may be a roll-on / roll-off vessel. In such a system, a pneumatic system is provided for maintaining a selected minimum pressure differential between a selected area of ​​the vessel above the cargo area and the cargo area such that the pressure in the selected area is greater than the cargo area. A control system may maintain the pressure differential.

The present invention belongs to the technical field of ships, and particularly relates to a design method for a curved bulkhead and a curved bulkhead. The design method for the curved bulkhead comprises the following steps: forming a bulkhead model with holes to be opened according to requirements, where the bulkhead model with holes to be opened is formed by rotating a quadrilateral ABCD around a rotation axis OO1 by an angle α; according to the hole-opening requirements, equally dividing the bulkhead model with holes to be opened into n regions with holes to be opened at intervals of (α / n) degrees. The regions with holes to be opened are provided with mounting holes that penetrate through the inner and outer surfaces of the bulkhead model with holes to be opened and have the same shape and size. The mounting holes and the regions with holes to be opened are similar figures. One mounting hole is provided in each region with holes to be opened. The upper surfaces of each mounting hole are on the same plane, the lower surfaces of each mounting hole are on the same plane, and the upper and lower surfaces of each mounting hole are respectively parallel to the plane ABA1B1; the target bulkhead is formed by opening mounting holes in the bulkhead model with holes to be opened. For the curved bulkhead provided by the present invention, the mounting holes have the same size and shape.

The utility model provides a prefabricated bulkhead plate which comprises a first bulkhead wall plate and a second bulkhead wall plate, an end limiting block is installed between the first bulkhead wall plate and the second bulkhead wall plate, a rivet is installed on the upper side of the end limiting block, a template is arranged on the side face of the first bulkhead wall plate and the side face of the second bulkhead wall plate, and the first bulkhead wall plate and the second bulkhead wall plate are connected through the rivet. Coil holes are formed in the upper portions of the mould plates, bottom connecting plates are arranged at the lower ends of the first cabin wall plate and the second cabin wall plate, waterproof pressing plates are arranged on the side faces of the bottom connecting plates, fixing plates are arranged on the upper sides of the first cabin wall plate and the second cabin wall plate, and supporting sheet metal parts are arranged on the side faces of the fixing plates. The stability of the supporting sheet metal part can be improved through the rivets, the first cabin body wall board and the second cabin body wall board can be fixed through the supporting sheet metal part, splicing and sealing between the wall boards are facilitated, and meanwhile the first cabin body wall board and the second cabin body wall board can be made into a double-layer heat preservation structure.

The invention belongs to a ship cabin structure in the technical field of ships. A ceramic wool layer is arranged on the deck (1) and comprises a framework plate (2) and ceramic wool (3), the framework plate (2) is provided with a plurality of framework plate holes (4) to form a honeycomb structure, the ceramic wool (3) is arranged in each framework plate hole (4) and covers the upper surface and the lower surface of the framework plate (4) at the same time, and a deck covering layer (5) is arranged on the upper surface of the ceramic wool layer. And a built-in enclosure bulkhead plate is arranged on the deck dressing layer (5). According to the ship cabin structure, the structure is simple, main vibration sources and noise isolation can be effectively achieved, silence and no vibration of the experiment cabin are achieved, the limitation of the arrangement position of the experiment cabin is small, an experiment can be conducted in the ship traveling period, and the requirement is met.

This invention discloses a support and reinforcement device for independent cargo holds, relating to the field of ship cargo hold technology. It includes a mounting base plate fixedly connected to the ship, two sliding brackets each with a cargo cover plate fixed to them, and a downward braking assembly for vertically locking a vertical sleeve fixed to a support column. A reinforcing arc plate is slidably mounted on the side of each cargo cover plate facing the mounting base plate. This invention uses two cargo cover plates and a support sleeve to form a cargo storage space. In extreme situations such as deck collapse, the protective top frame, supported by the support column and vertical sleeve, effectively protects the cargo cover plates. The drive slider in the retraction transmission assembly pushes against the tilting frame, causing the two tilting frames to slide towards each other and pull the two cargo cover plates together. This space contraction reduces the internal volume, significantly improving the pressure resistance of the cargo cover plates and ensuring effective protection of the cargo.

The invention discloses a connecting structure for a girder and a vertical aggregate of a ship body respectively positioned on two sides of a bulkhead, which comprises a bulkhead structure, the girder is fixedly arranged on the front surface of the bulkhead structure, and a first vertical aggregate and a second vertical aggregate are fixedly arranged on the back surface of the bulkhead structure; the girder is interrupted at the bulkhead structure; a panel of the girder is provided with a panel amplification end, and the panel amplification end is fixedly connected to the bulkhead structure; the width of the enlarged end of the panel is greater than that of the panel of the girder; the web part of the first vertical aggregate is aligned with the web of the girder; a reverse reinforcing plate is fixedly arranged on the back surface of the bulkhead structure; the reverse reinforcing plate is arranged between the two second vertical aggregates; the reverse reinforcing plate is flush with the panel of the girder; no toggle plate is arranged between the girder and the first vertical aggregate. According to the invention, the space below the girder can be fully utilized and is used for arranging equipment such as a ventilation pipe system and a cable.

This invention provides a high-efficiency ship cabin bulkhead panel, relating to the technical field of ship cabin bulkhead panels, comprising: a combined bulkhead panel and a combined locking component; the combined bulkhead panel consists of an adjustable bulkhead panel A and an adjustable bulkhead panel B, with adjustable bulkhead panel A connected to adjustable bulkhead panel B, and both ends of the combined bulkhead panel connected to two adjacent combined bulkhead panels; a rotating locking block is installed inside the adjustable bulkhead panel B, the rotating locking block being connected to the adjustable bulkhead panel A, and square grooves are provided at both ends of the rotating locking block, located on the outside of the adjustable bulkhead panel B. This invention allows for adjustment of the connection between the adjustable bulkhead panel A and the adjustable bulkhead panel B according to different cabin specifications, changing the width of the combined bulkhead panel itself, thus better adapting to the installation and use requirements of cabins of different specifications. It solves the problem that existing ship cabin bulkhead panels mostly adopt an integrated design, requiring custom-made dimensions and unable to be adaptively adjusted according to different cabin specifications, resulting in limitations in use.

A methods and systems of fumigating a vessel include delivering fumigant to a cargo area of the vessel. In particular, the vessel may be a roll-on / roll-off vessel. In such a system, an air pressure system is provided for maintaining a selected minimum pressure differential between a selected area of the vessel above the cargo area and the cargo area, such that pressure of the selected area is greater than the cargo area. A control system may maintain the pressure differential.

The invention relates to a vibration reduction and isolation bulkhead structure of an underwater vehicle and a design method thereof, the vibration reduction and isolation bulkhead structure comprises a bulkhead main body panel, the bulkhead main body panel comprises an equipment mounting part, a core adjacent equipment part, a middle transition part and a peripheral vehicle connecting part which are arranged from inside to outside; the inner ring vibration-resistant ring is arranged between the core adjacent equipment part and the middle transition part; the outer ring vibration damping ring is arranged between the middle transition part and the peripheral aircraft connecting part; the inner groove of the inner ring vibration-resistant ring and the inner ring rotating groove form an inner ring integral rotating groove, and the inner groove of the outer ring vibration-resistant ring and the outer ring rotating groove form an outer ring integral rotating groove; a sleeve chain type vibration isolation ring is fixed in the inner ring integral rotating groove and the outer ring integral rotating groove; composite damping materials are laid on the surfaces of the sides, away from the inner ring rotating groove and the outer ring rotating groove, of the core adjacent equipment part and the middle transition part. According to the invention, underwater radiation noise generated by operation of mechanical equipment mounted on the bulkhead can be greatly reduced.

The present invention relates to the field of ship processing, and specifically discloses a connection structure at the position of a sectional joint, including a first joint deck. A second joint deck is arranged on one side of the first joint deck. A bulkhead is installed on the lower surface of the first joint deck. A side stiffener is arranged on the side of the bulkhead close to the transverse stiffener. A triangular bracket is arranged between the side stiffener and the transverse stiffener. A hemmed opening is formed at the connection between the triangular bracket and the transverse stiffener. The side stiffener is cancelled in the first joint deck, simplifying the structural form, making it more convenient for the processing and manufacturing of the section, reducing the welding workload. The end of the transverse stiffener in the second joint deck is no longer aligned with the sectional joint, reducing the welding workload during the closing process. Through the deformation processing within the effective range of the hemmed triangular bracket for welding, the bulkhead stiffener and the deck stiffener are connected, improving the efficiency of on-site closing welding.

This application relates to a corrugated plate and a method for arranging corrugated units in an LNG carrier cargo containment system. The corrugated plate is formed by staggered splicing of multiple identical corrugated units with corrugated protrusions. The bottom surfaces of any two adjacent corrugated units are not aligned on a continuous straight line, and there is a blank area without corrugated protrusions between any two non-adjacent corrugated units. This application avoids the design limitations of traditional corrugated unit arrangement methods, allowing for more choices and optimization of the corrugated unit's form. The edges with the weakest tensile strength of the corrugated units are not aligned on a continuous straight line, thus avoiding the concentration of cold contraction stress along a continuous straight line.

The invention belongs to the technical field of ship parts, and discloses a fireproof through device and a ship. The fireproof through device comprises an installation pipe mechanism, an installation mechanism, a circulation mechanism and an elastic mechanism. The installation pipe mechanism is arranged in a through hole of a fire-resistant partition bulkhead of the ship in a penetrating mode, and the installation mechanism is connected between the peripheral side portion of the installation pipe mechanism and the fire-resistant partition bulkhead. The circulation mechanism penetrates through the mounting pipe mechanism and is configured to allow a heat source pipe system to penetrate through, and the two ends of the circulation mechanism can be connected to the parts, located on the two sides of the fireproof partition bulkhead, of the heat source pipe system respectively. The elastic mechanism is arranged between the installation pipe mechanism and the circulation mechanism, the circulation mechanism can be stretched or compressed in the axis direction, and the elastic mechanism can stretch out and draw back in the axis direction of the circulation mechanism. The fireproof through device can achieve the effects of heat insulation, vibration prevention and noise reduction when the heat source pipe system passes through the fireproof partition.

The present invention relates to a flow guiding structure on the aluminum alloy outer wall of a ship, belonging to the technical field of ship design and manufacturing. The flow guiding structure includes a flow guiding profile that is arranged at the bottom of the aluminum alloy outer wall plate and above the steel-aluminum composite joint for collecting and guiding condensed water; a plurality of flow guiding profiles are connected front and back and then connected to the ship's downcomer. The flow guiding structure provided by the present invention is used to prevent the side cabin of the aluminum alloy superstructure from generating an electrochemical reaction when the condensed water that may be generated on the inner side of the outer wall flows to the steel-aluminum composite joint at the lower end of the outer wall due to the temperature difference inside and outside, corroding the composite joint and the aluminum alloy outer wall; the flow guiding structure can also improve the structural stiffness at the bottom of the outer wall and serve as a pipe support bracket. The present invention protects the safety of the aluminum alloy outer wall of the superstructure and the steel-aluminum composite joint, takes into account aesthetics, and has a certain maintenance and preservation function for the pipe system and interior fitting.

The utility model relates to a yacht bulkhead and bulkhead bottom connecting structure which comprises a bulkhead and a bulkhead bottom, the bottom of the bulkhead is welded and fixed on the top surface of the bulkhead bottom, and a first L-shaped plate, a second L-shaped plate and a third L-shaped plate are sequentially welded on connecting corners on two sides between the bulkhead and the bulkhead bottom from inside to outside. According to the connecting structure for the cabin wall and the cabin bottom of the yacht, by increasing the inertia moment of the cross section, the bending resistance and the shearing resistance of the area are remarkably improved. Local stress is dispersed into a bulkhead and a bulkhead bottom structure in a larger range through the L-shaped plates, and fatigue cracks or deformation caused by single-point overload is avoided.

The invention relates to the technical field of cabins, and discloses a bottom side tank structure of a bulk cargo ship, which comprises a ship bottom plate, a plurality of groups of grooves are formed in two sides of the interior of the ship bottom plate, damping clamping pieces are inserted into inner cavities of the grooves, and a plurality of groups of first reinforcing assemblies are inserted into the plurality of groups of damping clamping pieces together; compared with the prior art, the damping device has the advantages that the designed damping clamping pieces and the rib plates are connected in an inserted and welded mode, damping protection is effectively conducted on the rib plates, the rib plates are provided with large holes, the stress condition of the positions of the round holes is better, stress is relatively more uniform, and the damping effect is better. The structure is safer, weight reduction of a ship structure is facilitated, so that the cost of a ship is reduced, the rib plates are quickly inserted, fixed and assembled, then interval measurement, positioning and installation are performed, the assembling efficiency is effectively improved, the working difficulty of assembling is reduced, the rib plates are effectively fixed in an anti-inclination manner, and the strength of the whole bottom side tank is improved.

The embodiment of the invention discloses a piezoelectric stack clamping device for active vibration reduction of a bulkhead, relates to the technical field of structural vibration control, and can implement faster active control on the vibration response of the bulkhead on the premise that the structure is simple and the stability is high. The device is characterized in that a pair of bases are installed on the bulkhead in a non-punching mode, and the size and the shape of the bottom of each base are matched with the size and the shape of the bulkhead; one end of the piezoelectric stack actuator is fixedly connected with a base of the clamping device through a bearing seat, and the other end of the piezoelectric stack actuator is in threaded connection with the flexible hinge; the flexible hinge is fixedly connected to the inner side of the other base; the piezoelectric stack actuator serves as a source of excitation force, excitation voltage generates displacement response after being input into the piezoelectric stack actuator, the displacement response is transmitted to the clamping device through the flexible hinge, the displacement response is converted into the excitation force under the limitation of the clamping device, and therefore a pair of force which is equal in magnitude and opposite in direction is output to the base, and excitation is formed.

The cabin hatch negative corner structure comprises a concave crescent negative corner plate, an opening of the negative corner plate faces a hatch, one side of the negative corner plate is fixed to the longitudinal wall of a ship body, and the longitudinal wall of the ship body is perpendicular to a main deck and the front wall of the hatch end; a mounting opening is formed in the front wall of the hatch end, a negative corner supporting structure is integrated on the mounting opening, a cavity used for containing a negative corner plate is formed in the negative corner supporting structure, the front wall of the cavity is open, and the negative corner plate is fixedly connected with the negative corner supporting structure. An independent concave crescent-shaped negative corner plate is adopted as a negative corner structure, and then the strength of the corner structure is guaranteed by adding a negative corner supporting structure. The negative corner structure is easy to machine, low in cost, light in weight, high in strength and capable of meeting the situation that the deck on the non-opening side of the hatch end wall in the head area is discontinuous in the ship width direction and is discontinued from the longitudinal wall.

The utility model discloses a kind of layered weight-reducing groove type bulkheads, which is made by two layered structure plates opposite spliced, the layered structure plate thickness is half of general groove type bulkhead, the layered structure plate is divided into short distance groove and long rectangle groove, two kinds of grooves are oppositely arranged with interval, when two layered structure plates are spliced, the short distance groove outer ridge of one layered structure plate is spliced with the long rectangle groove inner groove of another layered structure plate, compared with general groove type bulkhead, the thickness of the layered spliced groove plate is the same on the same section, and the plate material of two layered structure plates is the same, but the groove wall of the layered spliced groove plate groove is the same as the general groove type bulkhead with the same length and the same number of groove width of short distance groove, but the groove wall of the layered structure plate is thinner, so the material is less.

The utility model belongs to the technical field of ship cabin wallboards, and particularly relates to a light-weight sound-insulation fire-resistant ship cabin wallboard which comprises a wallboard body, splicing grooves are formed in the four corners of the rear surface of the wallboard body, the interiors of the splicing grooves extend to the exterior of the wallboard body, splicing holes are formed in the two faces of the interior of each splicing groove, and the splicing holes are communicated with the splicing grooves. A first splicing block is connected between the two splicing grooves in an inserted mode, and a second splicing block is connected between the four splicing grooves in an inserted mode. After a plurality of wall plate bodies are spliced together, the opposite splicing grooves correspond to each other, the two splicing grooves are connected through the first inserting splicing blocks, and the four splicing grooves are connected through the second inserting splicing blocks, so that the plurality of wall plate bodies can be spliced conveniently, and the splicing efficiency is improved. And after the first splicing blocks and the second splicing blocks are connected in an inserted mode, the multiple wall plate bodies are spliced through installation of the connecting assemblies and the installation holes, and therefore the multiple wall plates can be conveniently spliced, and use is convenient.

The utility model discloses a living cabin capable of reducing vibration noise of a ship. The living cabin comprises a floor, wall plates and a ceiling. The floor adopts a floating floor and is laid on the ground of the living cabin; the wall plate is of a double-layer hollow structure, the lower end of the wall plate is arranged on the floor through a wall plate bottom groove, and the upper end of the wall plate is connected with the top wall of the cabin through the hanging bracket. The ceiling is a punched sound-absorbing ceiling and is arranged on the top of the living cabin. According to the utility model, the vibration noise of the ship can be weakened, so that a comfortable working and living environment is provided for sailors, and the living quality of the sailors is improved.

The application discloses a kind of marine cabin anti-collision structure and its installation method, including bottom plate, the outside slide of the bottom plate Installation plate, the outside of the installation plate is movably installed with connecting plate by first buffer spring and second buffer spring, the arc-shaped anti-collision wood is installed outside the connecting plate, the outer arc surface of the anti-collision wood is installed with stainless steel layer by mounting assembly.The application can realize the quick disassembly of anti-collision wood, replace the damaged anti-collision wood conveniently, the impact force generated by the anti-collision wood reduces impact, reduces the damage of crew or equipment due to impact, realizes the quick disassembly of stainless steel layer and rubber layer, avoids the overall replacement of anti-collision wood structure, prolongs the service life of parts.

The present application relates to a method for installing a fuel tank top deck section and double-wall pipes of a dual-fuel container ship, which divides the deck section into a deck assembly, an A-zone longitudinal bulkhead assembly, a B-zone longitudinal bulkhead assembly and a C-zone longitudinal bulkhead assembly; the deck assembly and the C-zone longitudinal bulkhead assembly are separately built, the A-zone longitudinal bulkhead assembly is integrally built when the deck assembly is built; the B-zone longitudinal bulkhead assembly is separately built; sand-blasting and painting are performed; the deck assembly is reversely placed and the B-zone longitudinal bulkhead assembly is separately installed; four longitudinal bulkhead plates of the B-zone longitudinal bulkhead assembly are separately installed on the deck assembly, double-wall pipes are passed through the four longitudinal bulkhead plates of the B-zone longitudinal bulkhead assembly, and the rib plates between the four longitudinal bulkhead plates are installed; and the C-zone longitudinal bulkhead assembly is mounted on the B-zone longitudinal bulkhead assembly. The present application divides the deck section into different assemblies for building, installs the double-wall pipes and mounts the assemblies after sand-blasting and painting, so as to avoid damaging the double-wall pipes.

According to the embedded penetrating structure of the ship bulkhead, a first reinforcing plate and a second reinforcing plate are embedded in a special-shaped penetrating hole, primary watertight plugging is achieved through the forms of the first reinforcing plate and the second reinforcing plate, a physical barrier is formed, and compared with a traditional plane reinforcing plate, the watertight reliability is greatly improved, and the water leakage risk is effectively reduced.

The utility model relates to the technical field of refrigeration houses, and discloses a wallboard connecting device for a marine assembly type refrigeration house, which comprises a house plate, a placing groove is formed in one side of the house plate, and an inserting groove corresponding to the placing groove is formed in the other side of the house plate; the inserting part comprises an inserting rack slidably arranged at the placing groove and a rack driving unit used for driving the inserting rack to slide in the placing groove, and the inserting rack is matched with the inserting groove of the adjacent warehouse plate in an inserting mode; a limiting groove is formed in the inner wall of the inserting groove, the limiting part is arranged in the limiting groove in a sliding mode, the limiting part comprises a limiting piece arranged in the limiting groove in a sliding mode and a limiting driving unit used for driving the limiting piece to slide in the limiting groove, and the limiting piece is matched with tooth seams of adjacent teeth inserted into the rack in an inserting mode; and the sealing part is arranged between the two adjacent warehouse plates, and the inserting part and the limiting part are matched with each other to enable the two adjacent warehouse plates to clamp the sealing part. The effect of improving the library plate mounting efficiency is achieved.

This invention relates to the field of ship vibration reduction and noise reduction technology, specifically to an elastically reinforced connection structure for bulkheads, panels, and handrails. The structure includes bulkheads, panels, and handrails, with the handrails connected to the outer surface of the panels. The key feature is the presence of an elastically reinforced connection structure assembly between the inner surface of the panel corresponding to the handrail and the bulkhead. This assembly includes an elastic noise-reducing reinforcing connector, a lower elastic clip, a support pad, and a support plate. The outer side of the elastic noise-reducing reinforcing connector is bolted to the panel and handrail, while the inner side is connected to the bulkhead via the lower elastic clip, support pad, and support plate. This design offers advantages such as simple structure, good noise reduction effect, improved cabin comfort and working environment, and benefits to the physical and mental health of crew and passengers.

The present invention relates to a passenger ship (1) comprising at least one superstructure (3), this superstructure (3) being formed of a plurality of decks (P0-P5) including decks (P1-P4) each having at least one longitudinally oriented passageway (5) and serving a first set of spaces (40) such as cabins located on the port side and a second set of spaces (42) such as cabins located on the starboard side, characterized in that the spaces (40, 42) of at least one of said sets of spaces are provided with a structural bulkhead (70) parallel or substantially parallel to said passageway (5), which extends within the space occupied by these spaces (40, 42). Figure for the abstract: Fig. 1a

The utility model discloses a transition structure for adjacent bulkheads of a B-type cabin, which comprises a longitudinal wall plate, a bottom wall plate and an arc-shaped outer plate I. The transition structure is characterized in that the longitudinal wall plate and the bottom wall plate are orthogonally arranged at 90 degrees; the arc-shaped outer plate I is arranged at the intersection of the longitudinal wall plate and the bottom wall plate; a bottom bulkhead reinforcing T row, a transverse large longitudinal girder reinforcing plate and an arc-shaped supporting reinforcing plate are sequentially connected to the bottom wall plate, and the arc-shaped supporting reinforcing plate is fixed to the bottom wall plate and the first arc-shaped outer plate at the same time. A longitudinal reinforcing T row is arranged on the longitudinal wall plate and is fixedly connected with the arc-shaped supporting reinforcing plate and the first arc-shaped outer plate; the longitudinal reinforcing T row and the bottom bulkhead reinforcing T row are composed of a plurality of T-shaped plates. The device solves the problems that the evaporation rate of liquefied gas is high and the building efficiency is low in the prior art.