14results about "Hull stems" patented technology

The application relates to the technical field of ship engineering, and discloses a wave-blocking water-tight structure for a ship, the ship comprising a bow house deck, the bow house deck being provided with deck machinery, and comprising the following components: a wall plate assembly, which is installed on the bow house deck; and a wave-blocking shell, which is installed on the bow house deck, the rear end of the wave-blocking shell being connected to the wall plate assembly, the wave-blocking shell, the wall plate assembly and the bow house deck jointly defining a protection cavity, and the deck machinery being accommodated in the protection cavity. The wave-blocking water-tight structure for the ship can effectively improve the sealing performance of the bow house deck area, realize all-around protection of the deck machinery, and optimize the buoyancy distribution and the navigation stability of the ship.

Disclosed in the present invention is a hull form of a shallow-draft anti-rolling transport vessel. The hull form comprises a stern section, a cargo hold section and a bow section which are connected in sequence, wherein the length of the stern section does not exceed 30% of the overall length of a vessel; the length of the bow section does not exceed 25% of the overall length of the vessel; the stern section uses a multi-hull structure; the cargo hold section uses a monohull structure; the bottom of the cargo hold section is of a double-bottom structure; the bow section uses a catamaran structure; side flare structures are arranged at both sides of the stern section and the bow section; the stern section, the cargo hold section and the bow section share a main deck; and the main deck is a flat grillage. In the present invention, by means of reducing the draft, a wetted surface area and a wave height during high-speed navigation are reduced, thereby greatly reducing wave-making resistance; and the stability and seakeeping performance of the vessel under severe sea conditions are also taken into account.

The application discloses a ship bow, which comprises a forward inclined part and a bulbous bow part; the bulbous bow part is connected to the lower part of the forward inclined part; the forward inclined part is located above the waterline, and the bulbous bow part is located below the waterline; the intersection line of the outer surface of the ship bow formed by the forward inclined part and the bulbous bow part and the ship centerline is a straight line segment and an arc line segment, the arc line segment is connected to the straight line segment, the straight line segment is located above the arc line segment, the straight line segment is distributed obliquely downward towards the stern, and the arc line segment extends towards the stern. The application solves the problem that the traditional line type cannot simultaneously consider the resistance performance under the two working conditions of ice area navigation and ice-free open water navigation, and effectively improves the comprehensive energy consumption level of the ship on the whole operation route.

The application belongs to the technical field of ship manufacturing, and discloses a manufacturing method of a ship bow stem and the ship bow stem. The manufacturing method comprises the following steps: S1, manufacturing a keel web plate, a keel surface plate, a horizontal baffle, a transverse rib plate, a bow stem plate and a ship body plate; S2, manufacturing an auxiliary lining plate with a width smaller than the keel surface plate; S3, welding the auxiliary lining plate on the keel web plate; S4, sequentially welding the horizontal baffle, the auxiliary lining plate and the keel web plate; S5, sequentially welding the transverse rib plate, the auxiliary lining plate and the keel web plate; S6, welding the bow stem plate, the keel web plate, the horizontal baffle and the transverse rib plate; S7, welding the ship body plate, the bow stem plate, the horizontal baffle and the transverse rib plate; and S8, welding the keel surface plate on the auxiliary lining plate. Without the interference of the keel surface plate, the ship body plate has sufficient operation space for effective welding with the horizontal baffle, the transverse rib plate and the bow stem plate, thereby reducing the difficulty in assembly and welding.

The invention discloses a high-speed quadruple ship structure, and belongs to the technical field of ship engineering. The high-speed quadruple ship comprises two bow and stern catamarans which are the same in size and are symmetrically arranged. Each bow and stern catamaran comprises a bow piece body and a stern piece body, and the bow piece bodies and the stern piece bodies are arranged at intervals in the longitudinal direction; a continuous main deck is arranged above the two bow and stern catamarans, the main deck covers a central area defined by the four sheet bodies, and the sheet bodies are connected with the main deck through independent damping structures. Through differentiated design of the front sheet body and the rear sheet body and optimized sheet body layout, on the premise that the displacement is kept equivalent to that of a catamaran, the total width of the ship body is remarkably increased, the transverse stability and the deck area are improved, meanwhile, the hydrodynamic performance is optimized, the high-speed high-sea-condition maintaining capacity is high, the wave impact load is greatly reduced through a damping system, and the service life of the catamaran is prolonged. Hull movement is inhibited, and good compatibility of high navigational speed and high stability is achieved; and rapid large-scale construction is facilitated.

The invention belongs to the technical field of air cushion suspension transportation equipment, and relates to an air cushion suspension ship with a lift low-wind-resistance bow body, the air cushion suspension ship comprises a ship body main frame, an arc streamline bow body and a stern body, the arc streamline bow body and the stern body are symmetrically arranged at the two ends of the ship body main frame, the sweepback angle of the front edge of the bow is 17-18.3 degrees, and the downward inclination angle of the lower edge of the bow is 5-7 degrees to form a front air seal. An integrally-formed air cushion flow guide enclosure shell is arranged on the lower portion of the ship body main frame, the air cushion flow guide enclosure shell, the ship head and the ship tail define an air cushion positive pressure cavity, and a ground effect air cushion is formed through air supply of front and rear duct booster fans to achieve non-contact suspension. The system further comprises a splayed symmetrical four-rotor power system, and four groups of rotor assemblies are fixed through vertical left and right motor mounting brackets to form a main propulsion and posture adjusting unit. Wind resistance is reduced and lifting torque is generated through the bow at a specific angle, air leakage is restrained in cooperation with an air seal structure, and low-wind-resistance, zero-friction suspension and high-stability control are achieved.

The stem structure comprises a stem body and a pressure relief plate connected to the front side of the stem body, a plurality of transverse supporting plates are arranged on the inner side of the stem body, a supporting rod is connected between every two adjacent transverse supporting plates, and a plurality of pressure relief holes are formed in the pressure relief plate. The outer surface of the pressure relief plate is detachably connected with a titanium alloy filter screen covering the pressure relief holes, a filter mesh corresponding to the titanium alloy filter screen is arranged between the pressure relief plate and the titanium alloy filter screen, the filter mesh comprises a plurality of grooves in one-to-one correspondence with the pressure relief holes, and the grooves bend towards the corresponding pressure relief holes and are arranged in the corresponding pressure relief holes. The cargo ship has the advantages that in the driving process of the cargo ship, the titanium alloy filter screen and the filter screen piece are arranged to avoid the situation that the pressure relief holes are prone to being blocked by marine organisms or sundries and cannot effectively divide water flow of the ship bow, the frequency that the pressure relief holes need to be cleaned by sailors due to blockage is reduced, and the maintenance workload and time are reduced.

The invention discloses a gravity and buoyancy balanced type telescopic bulbous bow device which comprises a bulbous bow and an adjusting module, the bulbous bow comprises a tail plate, a connecting structure and a telescopic body, the tail plate is connected with the telescopic body through the connecting structure, the adjusting module comprises a guide rail, an electric trolley and limiting blocks, the limiting blocks are installed on the upper surface and the lower surface of a fore peak, and the guide rail is connected with the electric trolley. A guide rail is arranged between the limiting block and the anti-collision bulkhead, an electric trolley is arranged on the guide rail, the tail plate is connected with the electric trolley, and the electric trolley drives the tail plate to move between the anti-collision bulkhead and the limiting block. The bulbous bow is designed to be in a gravity and buoyancy balance type, meanwhile, the control system is used for analyzing the ship navigation state, the length of the bulbous bow is automatically adjusted, the adaptability of the bulbous bow to different navigation states is effectively improved, and the wave-making resistance reducing effect of the bulbous bow is improved.

The utility model relates to the technical field of hydrology survey, disclose a kind of portable hydrology water resource survey device, including ship body, ship body both side walls are equipped with bow structure, the lower inner wall center of ship body is fixedly connected with survey structure at one side, the lower inner wall center of ship body is fixedly connected with battery module at both ends, the upper end surface of battery module is equipped with PLC integrated board at front, the bow structure includes two coil springs, two The upper end surface of two coil springs is fixedly connected with bow gasbag, the other end of two bow gasbag is fixedly connected on the both side walls of two ship bodies respectively. In the utility model, the bow structure is used after being inflated by two bow gasbags, and after use, the air in the bow gasbag is released, and the two bow gasbags are wound up by two coil springs, so that it is convenient to carry.

The invention provides a double-bow icebreaker structure for polar region mining, and belongs to the field of ship design and manufacturing. The problems that in the prior art, an icebreaker is large in resistance and poor in economical efficiency when sailing in open water, and a traditional single prow design cannot meet the requirements for long-distance sailing economical efficiency and high-strength icebreaking operation are solved. The ship comprises a ship body, a composite prow structure and a ballast water system, the composite prow structure is arranged at the prow of the ship body, and the ballast water system is arranged in the ship body and used for adjusting ballast water distribution in the ship body; the combined type stem structure comprises an icebreaking bow and a bulbous bow, the bulbous bow is arranged at the bottom of the icebreaking bow, and the ballast water system comprises a head ballast tank, a tail ballast tank and a pipeline for connecting the two ballast tanks. The integrated design of the double-function prow is adopted, a complex mechanical deformation mechanism is avoided, switching of working modes can be achieved only through a reliable ship control means of adjusting ballast water, the structure is simple, operation is convenient, and the maintenance cost is low.

The application discloses a bow sunken LNG ship structure, which comprises a main deck, an aft deck, a bow sunken deck, a ladder, a crane, and cargo cabin outer inclined roofs, wherein the aft deck is arranged at the aft section of the ship, the bow sunken deck is arranged at the bow section of the ship, the main deck is arranged between the bow sunken deck and the aft deck, the height of the main deck is higher than that of the bow lower deck, the ladder is arranged at the position close to the main deck of the bow lower deck, the crane is arranged at one end of the main deck close to the bow lower deck, the bow sunken deck extends from the position close to the aft end of the No.1 cargo cabin to the bow of the ship, and the cargo cabin outer inclined roofs are arranged on the left and right sides of the liquid cargo dome of the No.1 cargo cabin in the direction of the left and right sides. The main deck at the position close to the aft end wall of the No.1 cargo cabin is vertically sunken to form the bow sunken deck, the empty ship mass is effectively reduced, the structural parts are reduced, and the lightweight design of the ship is realized.

The utility model relates to the technical field of ships, in particular to a ship head end structure which comprises a deck and a head end assembly, the head end assembly comprises a deck longitudinal bone, a transverse buckling rib, a ship bottom longitudinal bone and a supporting piece, and the transverse buckling rib is used for replacing a transverse strong frame structure in the prior art. The intersecting distance of the deck longitudinal bone and the ship bottom longitudinal bone is prolonged to be matched with the supporting piece for auxiliary supporting, so that the span moment of the ship bottom longitudinal bone and the deck longitudinal bone is reduced, the deck structure is close to the outer plate structure, the transverse width is increased through the transverse buckling ribs, hole forming is more convenient, the inner cavity space is increased, and the structure is more compact. Therefore, the problems that according to an existing ship head end structure, the ship head end is in a sharp and thin line shape, the space of an inner cavity of the ship head end is usually narrow, and follow-up construction operation is very difficult are solved.

The invention discloses an NO96 type large LNG-FSRU bow regasification module arrangement method which specifically comprises the following steps: S1, module division: dividing a regasification module into a plurality of small modules, and respectively arranging the divided small modules in a thin film cabin bow slope plate area; s2, all the modules are connected through related pipelines, after the installation positions of all the modules are determined, the height of all the modules is limited, and height adjustment is completed; and S3, the modules are installed on the slope plate and distributed in a stepped mode, the overall contour is lowered through the terrain fall, and the sight blind area is reduced. According to the method, the overall height of the module is reduced through scattered arrangement, the situation that a centralized structure shields forward and lateral view of a cab is avoided, and it is ensured that a navigation lookout blind area meets the SOLAS standard requirement.

The utility model discloses a bow island type dual-fuel bulk cargo ship general arrangement which comprises an upper-layer building, a lower-layer building, an upper-layer building, an upper-layer building and a lower-layer building. The cargo hold area channels penetrate through the cargo hold area and are arranged on the two sides of the cargo hold opening in the length direction of the ship so as to communicate the superstructure, the cargo hold area and the stern working area; the drainage device is arranged in the cargo hold area channel; the outfitting platform is arranged on the deck between two adjacent cargo hold openings, and the height of the outfitting platform is equal to the height of the top of a hatch coaming of the cargo hold openings; the bow floor system is arranged between the upper-layer building front wall and the ship head outer plate in a mode that the middle is high and the two sides are low; the two fuel storage tanks are symmetrically distributed at the tail of the ship; the stern working area is arranged in the middle of the sides, facing the head of the ship, of the two fuel storage tanks. The problems that sailor safety threats exist in an existing tail island type bulk cargo ship, and the driving view is limited can be solved.