107 results about "Compartment (ship)" patented technology

The invention discloses a dry compartment heat preservation system utilizing LNG ship engine room hot air. The system mainly comprises a dry compartment part and an engine room part. Hot air from theengine room enters the dry compartment through the air heater and the pipeline, releases heat, becomes low-temperature air, then returns to the engine room of the ship through the air cooler and the pipeline, absorbs the heat in the engine room and becomes hot air, and thus a cycle is formed. On the premise that no extra heat source is consumed in the dry compartment, it can be guaranteed that thedry compartment can meet the temperature requirement specified by relevant specifications of the ship, the low-grade heat source in the air of the marine engine room can be utilized, the energy utilization rate of the ship can be increased, and in addition, the temperature in the engine room can be reduced. The design method is simple, convenient to operate and high in economical efficiency, andhas great practical application value.

The invention relates to a cargo compartment sectioning design method for a 80,000-cubic-level film type LNG (liquefied natural gas) ship, a cargo compartment is divided into four compartments including a bottom and bilge section, a side section, a bulkhead and a deck section. The method comprises a cargo compartment bottom and bilge section dividing form, a cargo compartment side section dividing form, a cargo compartment bottom and bilge section dividing form, a cargo compartment bottom and bilge section dividing form, a cargo compartment side section dividing form, a cargo compartment bottom and bilge section dividing form and a cargo compartment bottom and bilge section dividing form. A cargo compartment division form and a cargo compartment deck subsection division form are adopted, each of the four cabins is longitudinally divided into three ring sections. Meanwhile, it is guaranteed that the full-width block of the deck is complete, a low-temperature pipe system on the deck is installed in the total assembly stage in advance, and meanwhile ship body key nodes W4 on the inner wall of the cargo compartment are divided into subsection internal nodes; the invention further relates to a cargo compartment section designed and built based on the method. According to the method disclosed by the invention, the cargo compartment is divided and designed in sections, so that high efficiency and high quality of ship construction are ensured, the construction is completed on schedule, Meanwhile, the construction period is shortened and the coating PSPC standard is met.

The invention discloses a quick push-and-pull platform for maintenance of clearance seal C-shaped water stop rubber of a ship lift and a using method, and solves the problems that the platform is difficult to erect and the erection time is long during maintenance of the clearance seal C-shaped water stop rubber, so that the maintenance process is simplified, and the maintenance efficiency is improved. The platform comprises a fixing platform used for supporting the whole platform, and the fixing platform is fixedly installed at the bottom end of a ship compartment head structure of the ship lift and located under C-shaped water stop rubber. A movable platform is supported on the fixed platform in a sliding mode through a reverse walking wheel set and a riding wheel set. The reverse walking wheel set is fixed to the end of the movable platform and is in sliding fit with the fixed platform. The riding wheel set is fixed to the bottom end of the movable platform and supported on the top of the fixed platform in a sliding mode. And a bolt locking mechanism is arranged between the fixed platform and the movable platform.

The invention discloses a ship superstructure and an LNG dual-fuel bulk cargo ship comprising the same, LNG liquid tanks are arranged on one side or two sides of the ship superstructure, the ship superstructure comprises a building main body and an escape channel arranged in the building main body, the escape channel extends in the plane and height directions, and the escape channel is arranged in the building main body. The building main body is provided with a main body fire-resistant side face arranged close to the LNG liquid tank, at least one part of the escape channel extends close to the main body fire-resistant side face, and the escape channel and the main body fire-resistant side face are separated through a main body compartment. According to the ship superstructure, the compartment is additionally arranged between the escape channel and the LNG liquid tank in the ship superstructure, so that when a danger occurs, the escape channel is always isolated from the LNG liquid tank, the safety of an escape route is ensured, and the probability of casualties is reduced.

Invention relates to a room arrangement (20) comprising at least two superposed prefabricated load-bearing room units have a ceiling (24), a floor (2) and at least two walls (3, 4, 5, 6) that are at least mainly of cellular board. The invention also related to a ship, building and method for constructing a room arrangement. The invention relates especially to a new manner of constructing multi-story rooms, for example, cabin compartments in ships or block of flats without middle decks or intermediate floors.

The invention relates to the technical field of ship lift equipment, in particular to a ship lift chamber assembling method of a ship lift. The method comprises the following steps: (1) dividing a ship reception chamber needing to be assembled into N sections of chamber bodies, and recording the N sections of chamber bodies as the i-th section of chamber bodies, wherein N is greater than or equal to 2 and is an integer, and i ranges from 1 to N; (2) enabling compartment body components forming the i-th section of compartment body to be fixed through the assembling jig frame i of the i-th section of compartment body, to be arranged into the shape of the i-th section of compartment body and to be assembled to form the i-th section of compartment body; (3) setting up a mounting bracket in the shape of the ith compartment body at a specified position, and recording the mounting bracket as a mounting bracket i; (4) transferring the i-th section of compartment body to the mounting bracket i; (5) repeating the step (2) to the step (4) for each section of compartment body until i is equal to N; (6) assembling the N sections of compartment bodies into the ship reception compartment. According to the scheme, the overall assembly time of the ship reception chamber is greatly shortened, and the assembly of the ship reception chamber is rapidly, safely and economically completed by utilizing the existing conditions to the maximum extent.

The invention relates to a rapid maintenance method and a maintenance platform for a ship compartment door of a ship lift, and provides a rapid maintenance method for the ship compartment door under the state that a ship compartment is not drained in order to overcome the defects that the maintenance of the ship compartment door of the ship lift is long in time consumption, consumes a large amount of manpower and material resources and the like. The platform used for achieving the rapid maintenance method of the ship compartment door comprises a maintenance platform body, a maintenance platform opening and closing device, a maintenance platform locking device and a guiding and buffering device, the maintenance platform body can rotate around a supporting hinge in a vertical plane through the opening and closing device, and the maintenance platform body is erected and locked through the locking device in the non-maintenance state. According to the rapid maintenance method and maintenance platform for the ship compartment door of the ship lift, the construction workload can be reduced to a great extent, and the ship compartment and the ship compartment door structure are protected against damage.

The invention relates to a ship loading calculation method based on Excel, the basic formula is F = W-B, M = summing F * d (x), the ship loading calculation method comprises the following steps: a, calculating the shearing force, and the formula is that the shearing force F = W-B; a1, calculating the weight W of the ship; a2, calculating the buoyancy B of the ship; a2.1, calculating draught; a2, referring to a formula: D < head > = D < horizontal floating > + delta < head >, and D < tail > = D < horizontal floating > + delta < tail >; a2.2, calculating the volume, namely buoyancy, according tothe final draft calculated in the step a2.1; a3, the shearing force of each rib station number is obtained through F = W-B; b, calculating bending moment, wherein the formula is M = summing F * d (x); c, which comprises water area density, cabin liquid density, allowable shearing force values under different working conditions and allowable bending moment values under different working conditions; d, stowage and automatic calculation, wherein stowage comprises stowage of a ballast compartment and stowage of other compartments; compiling a function to generate hydrostatic data; last-key automatic computation. The method guarantees that the ship strength does not exceed the allowable value, guarantees the safe navigation of the ship, saves the software and time cost, and greatly improves the efficiency.

The invention belongs to the technical field of water conservancy and hydropower engineering. According to the specific technical scheme, a dynamic balance ship compartment gravity ship lifting systemcomprises a ship chamber and concrete walls which are arranged in parallel and oppositely, a power balance mechanism is fixed at the top of the concrete wall body; under the traction of the dynamic balance mechanisms on the concrete wall bodies on the two sides, the ship chamber is in a gravity and traction balance state, beam prestress is preset in a top beam of the concrete wall, the action direction of the cross beam prestress is opposite to the gravity direction of the ship chamber, the prestress of the beam is the same as the gravity of the ship chamber, the beam prestress is counteracted with the ship chamber gravity, the outer side of the ship chamber and the concrete wall body on the same side are driven by a linear power device. According to the ship lift, the self weight is balanced through the power balance mechanism, the balance weight is reduced, the requirement for the construction strength of concrete walls on the two sides of the ship chamber is lowered, and safe operation of the ship lift is guaranteed through a dual-drive system.

The invention relates to the technical field of maintenance and overhaul platforms, and particularly discloses a rapid overhaul platform for maintenance of ship lift ship compartment door water stop rubber. The rapid overhaul platform comprises fixed piles, an outrigger, a platform plate and a guardrail; the fixed piles are arranged at intervals at the bottom empty space of a ship compartment doorin the arrangement direction of the ship compartment door water stop rubber; the outrigger is detachably connected with the fixed piles; a limiting structure is arranged on the outrigger; the limiting structure abuts against the back face of a ship compartment door structure when the outrigger is in a self-weight state; the extending end of the outrigger extends in the direction away from the ship compartment door water stop rubber; a guardrail mounting position is arranged at the end of the extending end; the platform plate is detachably arranged at the extending end of the outrigger; the horizontal plane of the platform plate is higher than a water containing surface of a ship compartment; and the guardrail is detachably arranged on the guardrail mounting position. A set of working platform capable of being quickly erected is provided as a ship lift ship compartment door water stop rubber maintenance construction platform, so that the maintenance period is shortened, and quick erection, quick disassembly and reutilization can be realized.

The invention relates to the technical field of overhaul and maintenance working platforms, and particularly discloses an overturning and folding working platform for maintenance of ship lift clearance sealing water stop rubber. The working platform comprises a plurality of overturning and folding type platform bodies and first rotary connecting mechanisms; the platform bodies are sequentially arranged along the outer side of a vertical section of a clearance sealing mechanism arranged on the end face of a ship compartment head structure of a ship lift in the vertical direction through the first rotary connecting mechanisms; and the driving path of each platform body under the action of the corresponding first rotary connecting mechanism comprises reciprocating in the direction from the side face of the compartment head structure to the end face of the compartment head structure. In a maintenance state, all the platform bodies can be transferred to the end face of the compartment headstructure from the side face of the compartment head structure through the first rotary connecting mechanisms, the platform bodies are rapidly converted into a working state from a storage state through overturning and folding actions, and the purposes of lowering working intensity, saving the working platform building time, and shortening the maintenance period and the downtime are achieved.

The invention discloses an anti-ship mutilating device capable of realizing self-induction and step-by-step and compartment-by-compartment release of energy and a use method of the device. Multiple stages of concatemers perform self-induction blasting reactions in compartments sequentially and produce high blasting heat and flames to cause burning of component facilities in the compartments, induced detonation of stored ammunition and blasting of reserved fuel oil, blasting energy is produced through self-induction and is released to the compartments step by step, the mutilating range is enlarged remarkably, the fire setting effect is enhanced, and the device can be used for mutilating functional components in large ships efficiently to eliminate the operational capability of the functional components and even causing large-area fuel oil blasting or induced detonation of ammunition on the ships to cause sinking of the ships.

The invention discloses an inland ship with a ballast system. The inland ship comprises a middle cargo hold part; a bow; the ballast system comprises a double-layer bottom ballast tank, a ballast tank, a ballast tank, a ballast tank, a ballast tank, a ballast tank, a ballast tank body and a ballast tank body, the gunwale ballast tanks are located below the decks on the two sides of the middle cargo compartment part; the head ballast tank is located at the bottom of the ship head; the tail ballast tank is located at the bottom of the ship tail; and the water ballast tank is arranged on a deck at the tail part of the ship and is used for leveling the whole ship. The ship is suitable for inland river transportation, the ballast tanks are arranged in the ship body to form a ballast system, the ballast pump of the engine room is used for pumping and draining water, then the clearance height of the ship is rapidly adjusted, and the bridge crossing purpose is achieved.

The invention belongs to the technical field of water conservancy and hydropower engineering, and particularly relates to a linear motor driven hydraulic transmission ship lift capable of balancing dead weight. According to the specific technical scheme, the linear motor hydraulic ship lift comprises a ship chamber and concrete walls which are arranged in parallel and oppositely. A plurality of groups of constant-torque hydraulic transmission mechanisms are arranged at the top of the concrete wall body, a drum in the hydraulic transmission mechanism is connected with the ship chamber through asteel wire rope, and gravity information of the ship compartment is dynamically measured through the electronic scale sensors on the two sides of the ship compartment. The hydraulic motor drives thewinding drum to rotate to dynamically balance the gravity of the ship chamber; the stress balance of the ship chamber is realized; the linear motors on the two sides of the ship chamber drive the shipchamber to do reciprocating linear motion along the guide rails. Stable movement of the ship chamber in the guide rail is achieved through double fault tolerance of the hydraulic transmission mechanism and the linear motor, the requirement for the construction strength of a concrete wall of the whole ship lift is low, the ship lift can meet the ship lifting requirement for large tonnage and largelifting height, the overall construction cost is low, and practicability is higher.

The invention provides a sound-absorbing and vibration-reducing sheet for a passenger cabin of a ship, which comprises an arc-shaped composite sheet, and a plurality of sound-absorbing grooves tangent to the arc surface of the arc-shaped composite sheet are formed in the arc-shaped composite sheet; the sound-absorbing groove comprises a first cavity and a second cavity which are sequentially formed from the outer side to the inner side of the arc-shaped composite sheet and are communicated with each other, an elastic film layer for isolating the first cavity from the second cavity is arranged at the inner end of the first cavity, and a mass block is embedded in the center of the elastic film layer; a composite fiber layer is adhered to one side, deviating from the second cavity, of the elastic film layer; the second cavity comprises an outer cavity connected with the first cavity and an inner cavity, a telescopic adjusting rod is fixedly arranged in the center of the bottom end of the inner cavity, and an end block is arranged at the free end of the telescopic adjusting rod; and a closed cavity is formed between the end block and the elastic film layer. According to the invention, the noise of different frequencies can be effectively absorbed, and the best vibration and noise reduction effect is achieved.

The invention discloses a subsection division method for a cargo hold area of a thin film type LNG (Liquefied Natural Gas) ship. The subsection division method comprises the following steps of: 1), dividing all key nodes W1-W5 on the inner shell wall of a cargo hold into segments; 2), arranging a large joint between the two cargo compartment areas in a transverse compartment; 3), dividing each transverse compartment independently; and 4), dividing a liquid dome area into independent sections. The subsection division method is more scientific and reasonable, greatly reduces labor intensity, is good in implementation effect, the cargo space building precision of a cargo space area and structural centering precision of key nodes can be guaranteed and the method has the advantages of reducing dock carrying and hoisting, reducing assembling and welding workload of dock large joints and paint damage amount; dock and wharf fitting-out work forward movement is achieved to the maximum extent, ship launching integrity is improved, and the dock period is further shortened.