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137 results about "Compartment (ship)" patented technology

A compartment is a portion of the space within a ship defined vertically between decks and horizontally between bulkheads. It is analogous to a room within a building, and may provide watertight subdivision of the ship's hull important in retaining buoyancy if the hull is damaged. Subdivision of a ship's hull into watertight compartments is called compartmentation.

Submersible kail ship

The invention provides a diving kail ship. The diving kail ship comprises a ship body, a passenger compartment, a variable buoyancy system, an oxygen supply system, an underwater propelling system and a central control system. The ship body is of a main body structure capable of submerging the kail ship. The passenger compartment is arranged in the center of the interior of the ship body and used for containing passengers and is kept in a sealed state during diving. The variable buoyancy system comprises a plurality of buoyancy compartments, is arranged in the ship body, is close to the passenger compartment, and is used for controlling the buoyancy of the kalting ship to realize diving and floating; the oxygen supply system is arranged in the ship body, is adjacent to the passenger compartment and is used for providing oxygen for the passenger compartment; the underwater propelling system is arranged outside the ship body and used for providing underwater power and achieving underwater movement of the kalting ship; the central control system is arranged in the ship body and used for controlling work of the variable buoyancy system, the oxygen supply system and the underwater propelling system. The entertainment requirements of tourists on the water surface and underwater can be met.
Owner:BEIJING KESUM INTELLIGENT TECHNOLOGY CO LTD

Ship cabin illumination brightness automatic adjusting method based on fuzzy neural network

The invention discloses a ship cabin illumination brightness automatic adjustment method based on a fuzzy neural network. The method comprises the steps of ship cabin brightness data acquisition and cleaning estimation; the method comprises the following steps of: cleaning brightness data acquired by a plurality of sensors distributed in an indoor environment and an outdoor environment of a ship cabin by using a self-adaptive weighted fusion algorithm so as to obtain brightness estimated value data of the ship cabin; constructing a ship cabin illumination brightness automatic adjustment model based on the fuzzy neural network; obtaining horizontal and vertical illuminance of the point light source according to the ship cabin brightness estimation value data; inputting the obtained illumination into an automatic adjustment model, and performing fuzzification processing on parameters by the model to generate fuzzy linguistic variables; and performing fuzzy reasoning according to the generated fuzzy linguistic variable and the fuzzy rule base to obtain fuzzy output, thereby realizing adjustment of the contrast. Experimental results prove that the method can complete automatic adjustment of the illumination brightness of the ship cabin and ensure the comfort of the illumination brightness in the cabin.
Owner:JIANGSU MARITIME INST

Method for expanding capacity of A-type cabin in liquefied gas ship

According to the method for expanding the capacity of the A-type cabin in the liquefied gas ship, the A-type cabin is fixed in the ship body, top side cabins are arranged on the two broadsides of the top of the A-type cabin, a deck above the A-type cabin is a three-section type deck, the three-section type deck sequentially comprises a straight section, a large inclined section and a small inclined section from the central axis of the A-type cabin to the broadsides, and the small inclined section serves as a top cabin plate of the top side cabins at the same time. Included angles are formed between the large inclined section and the base line of the ship body and between the small inclined section and the base line, the included angle formed between the small inclined section and the base line is smaller than 5 degrees, and the included angle R2 formed between the large inclined section and the small inclined section is 130 degrees lt; r21t; the included angle R3 formed by the top side cabin inclined plate and the broadside is 45 degrees lt; r < 3lt >; 75 degrees, R < 3 > gt; and R < 2 > is 90 degrees. A deck beam is arranged on the lower surface of the three-section type deck, and the two ends of the deck beam extend to the top side cabin. The multi-section type deck is adopted, cargo loading with larger cabin capacity can be achieved in a channel with limited ship length, ship width and depth, higher economic benefits are achieved, and maximum loading of an existing liquefied gas ship is achieved.
Owner:DALIAN SHIPBUILDING INDUSTRY CO LTD +1

Ship side cabin section internal structured scaffold structure

The utility model belongs to the technical field of ships, and particularly relates to a ship side cabin section internal structuring scaffold structure which comprises a side cabin body. The side cabin body comprises a top side cabin section and a bottom side cabin section; the top side cabin section comprises a top side cabin rib plate, and a first scaffold device is detachably arranged on the top side cabin rib plate; the bottom side cabin section comprises a bottom side cabin rib plate, a second scaffold device is detachably arranged on the bottom side cabin rib plate, and the first scaffold device and the second scaffold device can change different positions according to the transfer turnover change of the top side cabin section and the bottom side cabin section for construction operation of a user. The first scaffold device and the second scaffold device are arranged, so that the requirement for transferring and overturning changes in different manufacturing stages can be met according to the manufacturing characteristics of the ship side cabin for construction operation of a user, meanwhile, mounting and dismounting are quite easy, the structure is stable, and construction and maintenance work loads can be effectively borne; the detachable structure is designed in a customized mode according to a ship side cabin, and construction is convenient.
Owner:GUANGDONG COSCO SHIPPING HEAVY IND CO LTD

Freight ship provided with closed deckhouse structure

The utility model discloses a freight ship with a closed deckhouse structure. An exposed deck area of a ship is arranged to be of a closed cabin structure to serve as a deck room (3), and a tail end pipe opening of an air pipe (1) and an air duct air opening of a cargo compartment ventilation system are located in the deck room. The deck house is provided with an open-type deck house outdoor exposed area (31), a ventilation pipe opening (51) of a ventilation main pipe (5) is located in the deck house outdoor exposed area, and a tail end pipe opening of an air pipe is communicated with the ventilation main pipe in the deck house. An extending air duct (7) leading to the outside atmospheric environment is arranged in the deck room, and an air duct opening of the cargo compartment ventilation system is communicated with the extending air duct and communicated with the atmospheric environment through the extending air duct. According to the freight ship, the exposed deck areas on the two sides of the cargo hold are closed to form the deck house, so that adverse effects of the low-temperature environment on equipment and facilities in the exposed deck areas are avoided.
Owner:SHANGHAI MERCHANT SHIP DESIGN & RES INST

Module block division method of container ship

The invention relates to the technical field of ship construction, and discloses a container ship module block division method which comprises the following steps: S1, according to a functional system, a hoisting system and a segmented supporting tool, dividing a container ship into a cabin module block, a cargo hold module block, a bow module block and a superstructure module block; s2, the cabin module block is divided into a front cabin subsection, a rear cabin subsection, a cabin upper cover subsection and a rudder upper cover subsection by taking base distribution as a benchmark; s3, dividing the cargo compartment module block into a bottom section, a broadside section and a transverse bulkhead section by taking the length of the container as a reference; s4, dividing the bow module block into a bow lower ring section, a bow upper ring section, a bow upper section and a bow lower section by taking distribution of a liquid tank base and a lateral thrust tank base as a reference; and S5, taking the integrity of the cabin as a benchmark, and dividing the superstructure module block into one or more sub-segments. The weight and the height of each module block are increased, the number of segments included in each module block is reduced, and the construction period in the dock is shortened.
Owner:CSSC HUANGPU WENCHONG SHIPBUILDING CO LTD

Anti-pitching combined supporting seat and ship

The invention belongs to the technical field of liquefied gas transport ships, and discloses an anti-pitching combined supporting seat and a ship, the anti-pitching combined supporting seat comprises bearing supports, wood pressing assemblies and an anti-pitching supporting seat, the bearing supports are arranged on the two sides of the anti-pitching supporting seat respectively, and the wood pressing assemblies are arranged between the anti-pitching supporting seat and the bearing supports; the interior of the anti-pitching supporting base is in arc transition connection with the stern end, and the exterior of the anti-pitching supporting base is in arc transition connection with the bow end. The stability of connection between the independent liquid tank and the main ship body can be effectively improved, longitudinal relative movement between the independent liquid tank and the main ship body can be avoided, the inner portion and the outer portion of the anti-pitching supporting base are in arc transition connection with the stern end and the bow end, the effective transmission path size of loads can be increased, and the stability of the loads is improved. Therefore, the stress concentration problem under the emergency working condition is reduced, structural damage caused by strength and fatigue problems is effectively avoided, the operation safety of the whole ship is improved, meanwhile, the construction efficiency can be improved, and the purchase cost is saved.
Owner:GUANGDONG GUANGCHUAN INT MARINE SCI & TECH RES INST CO LTD

Ship bilge keel system and ship

The embodiment of the invention discloses a ship bilge keel system and a ship. The bilge keel system comprises a bilge keel cabin, a bilge keel body, a hydraulic automatic control unit, a hydraulic jack set, a connecting toggle plate, a rotating shaft and a sealing limiting unit. The bilge keel cabin is arranged at the joint of a ship bottom plate and a broadside, a bilge keel body is of a triangular prism-shaped structure defined by three rows of coamings and is provided with a first limiting connecting piece and a second limiting connecting piece, and the broadside coaming is in an arc shape along a broadside outer plate and corresponds to an opening of the bilge keel in shape. One side of the side coaming is hinged to a bilge keel opening through a rotary hinge, and the hydraulic automatic control unit can control the hydraulic jack set to stretch out and draw back so as to drive the bilge keel body to rotate along the rotary hinge through the rotary shaft, so that the first limiting connecting piece or the second limiting connecting piece is in matched sealing connection with the sealing limiting unit. The retractable design of the bilge keel is achieved, and the sailing resistance is reduced by recovering the bilge keel.
Owner:GUANGZHOU SHIPYARD INTERNATIONAL LTD

Debugging system for main lifting mechanism of ship lift

The invention discloses a ship lift main lifting mechanism debugging system, which comprises a real-time data monitoring module used for carrying out real-time monitoring and analysis on electric signal delay transmitted in the operation process of a ship chamber positioning electric control system and carrying out classified recording and reporting on obtained delay information; and the ship chamber carrying state test module is used for acquiring cooperative operation parameters among the linkage power systems when the ship chamber is in different load and travel states, comparing and analyzing the cooperative operation parameters with preset rated parameters of the system, generating corresponding feedback data according to a comparison result, and reporting the feedback data. According to the debugging system for the main lifting mechanism of the ship lift, data of the main lifting mechanism of the ship lift in the operation process are collected, the collected data are processed, error data are reported and processed, good operation of the main lifting mechanism of the ship lift is guaranteed, and the debugging efficiency of the main lifting mechanism of the ship lift is improved. And the problem of channel blockage caused by ship retention due to faults in the operation process is avoided.
Owner:HANGZHOU GUODIAN MASCH DESIGN RES INST CO LTD +1

A compartment structure for verifying the deformation coordination capability of a typical sea-going pipeline system

The present invention discloses a compartment structure suitable for verifying the deformation coordination capability of a typical seagoing pipeline system. The compartment structure comprises a pressure hull plate and pressure hull ribs with dimensions identical to those of an actual ship, thickened pressure hull rings at both ends of the pressure hull plate; oversized ribs at both ends of the compartment structure, spaced the same as the distance between the bulkheads of an underwater vehicle; the platform structure is mounted near the port and starboard horizontal centerlines of the pressure hull plate; the simulated internal liquid tank structure comprises the front and rear transverse walls of the internal liquid tank; pressure hull side valve mountings are mounted on the pressure hull plate; internal liquid tank transverse bulkhead piping mountings are mounted on the transverse walls of the simulated internal liquid tank structure; and bulkhead piping mountings are mounted on the webs of the oversized ribs. The present invention can provide the most direct basis for verifying the deformation compensation capability of a displacement compensation device in a typical seagoing pipeline system at extreme depths.
Owner:CHINA SHIP DEV & DESIGN CENT

Position estimation method in ship cabin based on Bluetooth technology

The present invention provides a method for estimating a position in a ship cabin based on Bluetooth technology, and specifically belongs to the technical field of high-precision positioning services in ship cabins. The present invention performs weighted averaging fusion on an AoA angle estimation result of direct data collection and an AoA angle estimation result calculated by a multivariate sensor to obtain a better AoA angle estimation result, and then fuses the obtained better AoA angle estimation result with a result of RSSI after Kalman filtering to output the final position information. The method for positioning in a ship cabin of the present invention improves the accuracy of positioning in a ship cabin, and is of great significance for ensuring the safety of personnel on board and improving the level of ship operation services.
Owner:HARBIN ENGINEERING UNIVERSITY SANYA NANHAI INNOVATION & DEVELOPMENT BASE +1

Live fish cabin fish protection system and method special for complex sea conditions

A live fish cabin fish protection system and method special for complex sea conditions comprises a fish cabin, anti-collision wall bodies are installed in the fish cabin, the anti-collision wall bodies are the same in structure, the two anti-collision wall bodies on the opposite sides correspond to each other and are connected, and the structure of each anti-collision wall body comprises anti-collision strips which are sequentially distributed at intervals from top to bottom; the anti-collision strips are fully distributed along the bulkhead, all the anti-collision strips are communicated with one another, and each anti-collision strip is provided with injection orifices which are uniformly distributed; a fish protection system is arranged between the two anti-collision wall bodies on the opposite sides, and each fish protection system structurally comprises a water pump, the two ends of each water pump are connected with water outside the ship and a discharge port respectively, and meanwhile the two ends of each water pump are connected with the anti-collision wall bodies in parallel through control valves. Through unique design of the fish cabin and installation of the anti-collision walls on the periphery, survival of fishes is effectively protected, the fish cabin can adapt to complex sea conditions, and live fishes are prevented from impacting the cabin wall due to shaking of a ship in the fish cabin, so that survival of the fishes is protected, and the survival effect of the live fishes caught by voyage times of the ship is improved.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER

Ship compartment sealing device and ship

The application relates to the technical field of cabin sealing of a ship propulsion system, and provides a ship cabin sealing device and a ship, which comprises a sealing flange, a linear driving mechanism and a flange seat; the sealing flange is movably sleeved on a transmission main shaft of the ship, and the axis of the sealing flange is coincident with the axis of the transmission main shaft; one side of a sealing boss of the sealing flange facing the transmission main shaft is provided with a sealing surface, the sealing surface is used for being detachably connected with the end surface of the sealing boss; the sealing flange is connected with the moving end of the linear driving mechanism, the fixed end of the linear driving mechanism is connected with the flange seat, and the flange seat is used for being connected with the cabin wall fence of the ship; wherein the sealing flange has a first position and a second position; when the sealing surface is separated from the end surface of the sealing boss at the first position; and when the sealing surface is attached to the end surface of the sealing boss at the second position; the application conveniently realizes the sealing of the cabin, and improves the safety of the ship.
Owner:NO 719 RES INST CHINA SHIPBUILDING IND

A loading method for hydrostatic pressure under damaged condition of a car roll-on / roll-off ship

The application discloses a kind of static water pressure loading methods of automobile roll-on / roll-off ship under broken compartment condition, at least including as follows: broken compartment water line is expressed using function segmentation under broken compartment condition at a transverse section;Broken compartment water line is cut into several segments in longitudinal direction under broken compartment condition;The method of finite element is segmented to apply static water pressure under broken compartment condition.The main problem of simulating the correct broken compartment water line under broken compartment condition is solved, so as to accurately check the structural strength of watertight deck;The operation of conventional application method is conservative, which causes the broken compartment pressure to be greater than the actual value, resulting in the unreasonable increase of structure, and the broken compartment water line simulation is accurate in the application, and the structure arrangement is reasonable.
Owner:SHANGHAI MERCHANT SHIP DESIGN & RES INST

Ship cargo hold monitoring system and device based on optical fiber sensor

The invention relates to the field of ship cargo hold monitoring, and discloses a ship cargo hold monitoring system and device based on an optical fiber sensor, and the system comprises an optical fiber sensing module, a cargo state discrimination module, and a decision control module. The multi-parameter optical fiber sensor obtains various target information including oxygen content, temperature, humidity, vibration and the like in a ship cabin and modulates the information into an electric signal; establishing a ship cargo information database to activate a corresponding measurement sub-module, performing model training and prediction by using machine learning algorithms including a convolutional neural network and the like, generating data prediction results including gas alarm limit value information, material form information and the like, and judging whether a threshold value is reached or not according to related index information; corresponding parameters reaching a threshold value are obtained and enter a decision control module; and the decision control module controls the corresponding indicating lamps to flicker and give an alarm according to the data calculation result, and generates protection operation strategy suggestions and misoperation matter attention according to the data calculation result.
Owner:HARBIN UNIV OF SCI & TECH

Ship cargo hold ballast tank strength test method

The invention relates to the technical field of ship construction, in particular to a ship cargo hold ballast tank strength test method. The method comprises the following steps: S1, determining an initial working condition of a cargo compartment section: selecting the cargo compartment section in a half-ship state as a strength test object, wherein the cargo compartment section is in a sealed state; s2, testing the strength of the second ballast tank; s3, testing the strength of the fourth ballast tank; s4, testing the strength of the first / third ballast tank; and S5, the leveling working condition of the cargo compartment section is determined. According to the invention, before the whole LNG transport ship is formed, the strength test of the ballast tank of the cargo hold is realized in advance, the decahedron stress of the cargo hold is released in advance, the forward movement of construction nodes of the containment system is ensured, and the overall construction period is shortened by 2-3 months.
Owner:SHANDONG MARINE ENERGY CO LTD

Bag type ship bulkhead sealing device

The utility model discloses a bag type ship bulkhead sealing device which comprises a sealing seat and sealing covers installed on the two sides of the sealing seat in a sealed mode, a main shaft bush is arranged in an annular cavity formed by an inner hole of the sealing seat and the sealing covers on the two sides, the main shaft bush is connected to a ship main shaft in a sleeved mode, and a sealing piece is arranged between the main shaft bush and the ship main shaft. An annular elastic sealing bag is arranged on the periphery of the main shaft bush, an inner cavity of the elastic sealing bag is communicated with a pressurized sealing medium source through a communicating hole in a sealing seat, an on-off control valve is arranged in a connecting pipeline between the communicating hole in the sealing seat and the pressurized sealing medium source, and the periphery of the elastic sealing bag is connected with the inner hole wall of the sealing seat in a sealed mode. A sealing piece is arranged between an inner hole of the elastic sealing bag and the main shaft lining, and sealing pieces are also arranged between the two sides of the elastic sealing bag and the corresponding sealing covers. The bag type ship bulkhead sealing device can be used under the condition that a bulkhead wall and a ship main shaft have no strict perpendicularity requirement, and the sealing effect is guaranteed after water enters a bulkhead.
Owner:DONGTAI VESSEL FITTINGS

A ship outfitting engineering equipment installation process integration control method

This application discloses an integrated control method for the installation process of equipment in ship outfitting engineering, including: establishing an installation envelope model for each outfitting device in the ship's three-dimensional design model and assigning an installation time window, and outputting an installation process Gantt chart; deploying a deformation monitoring sensor group around the equipment base to continuously monitor the structural deformation after temperature compensation following welding; establishing a primary and secondary reference point network and calculating the target installation coordinates of the equipment base; performing epoxy grouting and monitoring the curing process through temperature sensors; performing precise six-degree-of-freedom alignment after hoisting the equipment body into place, and feeding back the deviation data to the coordinate transformation function to correct the target coordinates of subsequent equipment; and conducting pre-approval and multi-party signing for the sealing and control of the compartments. This method transforms the judgment of installation timing and process arrangement from experience-dependent to data-driven quantitative control, and improves the first-pass yield of equipment installation through precision closed-loop iterative correction.
Owner:SHANGHAI CONSTRUCTION FIRST CONSTRUCTION (GROUP) CO LTD

Ship

The utility model relates to the technical field of ship construction, in particular to a ship which comprises a ship body, a passenger cabin, a driving mechanism, a gyroscope and a controller. An arc-shaped guide structure is arranged on the ship body, the length direction of the guide structure is arranged in the width direction of the ship body, and the passenger cabin is slidably connected to the guide structure. The driving mechanism is connected with the ship body and the passenger cabin and can drive the passenger cabin to move on the guide structure; the gyroscope is arranged on the ship body, the gyroscope and the driving mechanism are electrically connected with the controller, the inclination direction of the top of the ship body can be detected through the gyroscope, when the top of the ship body inclines leftwards, the passenger cabin can be driven by the driving mechanism to move leftwards on the arc-shaped guide mechanism, and when the top of the ship body inclines rightwards, the passenger cabin can move leftwards. The passenger cabin can be driven by the driving mechanism to move rightwards on the arc-shaped guide mechanism, the swing amplitude of the passenger cabin along with the ship body is reduced, stabilization of the passenger cabin is achieved, the space occupied by the guide mechanism and the driving mechanism is small, and the device is more suitable for small and medium-sized ships.
Owner:GUANGZHOU DESIGN & RES INST OF SHIPS & MARINE ENG

Ship fan room

The utility model provides a ship fan room which is used for being arranged on a deck of a ship and comprises a fan room shell, the fan room shell is used for being arranged on the deck, an air supply cabin and an air exhaust cabin which are independent of each other are formed in the fan room shell, and the air supply cabin and the air exhaust cabin are used for being communicated with cabins in the deck respectively. The air feeder is arranged in the air feeding cabin, and the air feeding cabin is communicated with the cabin through the air feeder; and the exhaust fan is arranged in the exhaust cabin, and the exhaust cabin is communicated with the cabin chamber through the exhaust fan. According to the ship fan room provided by the embodiment of the utility model, the mutual isolation of air supply and air exhaust in the fan room can be realized, and the ventilation efficiency of the fan room is greatly improved.
Owner:SHANGHAI ZHENHUA HEAVY IND

A vibration-resistant reinforcement structure between the main engine room and the oil separator room

The present invention relates to the technical field of ship design, manufacturing and installation, and specifically to a vibration-resistant reinforcement structure located between a main engine room and an oil separator room, comprising a longitudinal vibration-resistant wall arranged between the main engine room and the oil separator room of the ship, the longitudinal vibration-resistant wall being used to install an auxiliary vibration-resistant support connected to a main engine in the main engine room of the ship, the longitudinal vibration-resistant wall comprising an upper wall and a lower wall connected in an integrated manner, the upper end of the upper wall being connected to an upper deck, the lower end of the lower wall being connected to a lower deck, the lower wall being a plurality of piers arranged at intervals in the longitudinal direction, each of the piers being provided with a waist-shaped hole in the middle through which personnel can pass in the longitudinal direction of the ship; a bridge hole serving as a transverse passage is formed between the two adjacent piers, and the waist-shaped holes of each pier form a longitudinal passage in the longitudinal direction. The present invention facilitates the passage of crew members while ensuring structural strength and reducing vibration of the main engine.
Owner:CHENGXI SHIPYARD

Effectiveness test method for drainage port of open cargo hold of open ship

The invention discloses a method for testing the effectiveness of a drainage port of an open cargo hold of an open ship, and the method is characterized in that the method comprises the steps: simulating a test environment condition and a test object; determining the most unfavorable opening cargo hold of the open container ship; simulating the immersion volume of the open cargo hold of the open ship; injecting water into each open cargo hold; carrying out an open cargo compartment drainage port effectiveness test; and evaluating a test result. The method has the advantages of wide application range, high accuracy, high reliability, high repeatability and high safety.
Owner:SHANGHAI MERCHANT SHIP DESIGN & RES INST

A method and system for identifying dynamic water level in ship cabin

The embodiment of the present invention provides a method and system for identifying the dynamic water level in a ship cabin. First, the acquired image is preprocessed. After image graying, image segmentation, and morphological processing, the dynamic liquid level is identified based on the PP‑YOLO v2 algorithm. The water tank is simulated as a cabin for experiment to obtain the liquid level detection result. The relative error of the liquid level result measured by the algorithm is 1.33%, and the accuracy rate reaches 98.67%, which has strong reliability. The automation level of ship cabin liquid level identification is improved, and it has strong application value.
Owner:NO 719 RES INST CHINA SHIPBUILDING IND

Ship lift safety mechanism gap adjusting method and ship lift safety mechanism turning method

A ship lift safety mechanism gap adjustment method and a ship lift safety mechanism turning method, first require to disconnect the connection between the ship compartment attitude driving point reducer and the synchronous shaft which needs to be adjusted, and then reinstall the synchronous shaft after adjusting the ship compartment to the horizontal state. Then, the adjustment direction is determined by measuring the gap value of the upper and lower ends of the safety mechanism screw pair. Subsequently, the driving universal coupling of the safety mechanism is removed, and the specially designed ship lift safety mechanism gap adjustment device is connected and fixed with the upper rotary support disc of the safety mechanism. By manually rotating the device, the upper and lower gap values of the safety mechanism screw pair can be selectively increased or decreased until the preset standard is met. Finally, after confirming that the gap adjustment meets the standard, the driving universal coupling of the safety mechanism is reassembled to restore the normal operation of the ship lift. The present application not only improves the safety and reliability of the ship lift, but also simplifies the maintenance process and reduces the operation difficulty.
Owner:THREE GORNAVIGATION AUTHORITY

An explosion-proof depressurization system for ship compartments and its control method

This invention relates to the field of marine engineering technology and discloses an explosion-proof pressure relief system and its control method for ship cabins. The cabin includes a wall panel with a vent. The system includes: a sealing gasket surrounding the vent on the wall panel; a sealing plate abutting the outer end of the sealing gasket; a clamping assembly including a gas cylinder, a cylinder, a pressure relief valve, a first solenoid valve, and a second solenoid valve. The piston rod end of the cylinder abuts against the outer end of the sealing plate. The pressure relief valve is located in the rodless chamber of the cylinder. A first pipeline connects the gas cylinder to the rodless chamber of the cylinder, and a second pipeline connects the gas cylinder to the cabin. The first solenoid valve is located in the first pipeline, and the second solenoid valve is located in the second pipeline. The gas cylinder contains inert gas. A control assembly is electrically connected to the pressure relief valve, the first solenoid valve, and the second solenoid valve. The explosion-proof pressure relief system and its control method for ship cabins provided by this invention can maintain stable pressure within the cabin and also address fire hazards.
Owner:GUANGZHOU DESIGN & RES INST OF SHIPS & MARINE ENG

Fire compartment junction box

1. The name of the design product: fireproof cabin wiring wall box. 2. The use of the design product: used for the connection of electric wires on the fireproof cabin wall of a ship and the protection of electric wire joints. 3. The design points of the design product: in the shape of the product. 4. The picture or photo that best shows the design points: design 1 perspective view. 5. Other circumstances that need to be explained: the basic design of multiple similar designs: design 1 is designated as the basic design of the present design application.
Owner:QINGDAO JUXING MACHINERY & MOLD

Active large-amplitude long tunnel dual-ship combined ship hydrodynamic experimental device and method

The present invention discloses an active large-amplitude long tunnel double-ship combined ship hydrodynamic experimental device and method, the device includes a pushed ship model and a booster ship model, a rectangular transparent water pool, a water pool bracket, a height difference generating system, a ship model mooring system and a measuring system, the measuring system includes a flow rate meter, a wave height meter, a six-component force measuring balance, a high-speed camera and a water surface height scale, the flow rate meter is used to measure the flow rate of water in the transparent water pool, the wave height meter is used to measure the water level fluctuation in the transparent water pool, the six-component force measuring balance is arranged on the pushed ship model and the booster ship model, the high-speed camera is used to photograph the pushed ship model and the booster ship model, and the water surface height scale is used to measure the water level height of the transparent water pool; the present invention can systematically study the ship resistance, ship posture and motion response during the process of the ship entering and exiting the ship compartment.
Owner:THREE GORNAVIGATION AUTHORITY +1

Ultra-large container ship transverse bulkhead block carrying method

The invention discloses a method for carrying a transverse bulkhead block of an ultra-large container ship, which comprises the following steps of: confirming the serial number of a transverse rib plate aligned with the transverse bulkhead block, temporarily fixing a transverse continuous structure and a carrying plate with an inclined surface, hoisting the transverse bulkhead block, welding the transverse bulkhead block and dismantling a temporary fixing part in sequence to finish carrying. Deformation of the transverse bulkhead in the carrying process is avoided, the precision of the bulkhead capacity is guaranteed, deformation of the double-layer bottom plate caused when the transverse bulkhead is carried and guided is further avoided, the transverse bulkhead can be accurately positioned, the hook loosening speed of the transverse bulkhead block and hoisting equipment is increased, the operation frequency of the hoisting equipment is increased, and the utilization rate of dock resources is increased.
Owner:HUDONG ZHONGHUA SHIPBUILDINGGROUP

Construction method of MARK III type liquefied natural gas transport ship

A construction method of a MARK III type liquefied natural gas transport ship is characterized in that a small dock or an unoccupied area of the dock is utilized, a watertight structural design meeting the structural strength is adopted, and the MARK III type liquefied natural gas transport ship is divided into two sections to be constructed (a bow half section and a stern half section) by taking an isolation void compartment of any cargo compartment as a boundary. After the ballast tank strength test is completed, the whole ship is formed in a floating butt joint mode, and construction of all working procedures of a cargo containment system is carried out after butt joint. After the main ship body is formed and the shaft rudder system is constructed, the whole ship floats out of the dock, construction of the remaining cargo wall system is completed in the dock mooring stage, and the underwater construction period is shortened. According to the method, the liquid cargo natural gas transport ship is built by using the small dock and the free area of the dock, a cargo containment system has construction conditions in advance, the building period of the whole ship is shortened, core resources of ship building are efficiently utilized, the total period of ship building is shortened, and the building cost is reduced.
Owner:DALIAN SHIPBUILDING INDUSTRY CO LTD