378 results about "Engine room" patented technology

The invention provides a ship unmanned aerial vehicle cabin multistage fire alarm system and method based on edge computing, and the system comprises an intelligent shipborne system and a shore-based cloud system, the intelligent shipborne system is disposed in a ship cabin, and has the functions of data collection, data abnormity perception, fire monitoring and multistage early warning; the method is composed of three levels of data acquisition, edge processing and fire decision making. The shore-based cloud system is a cloud end of a shore-based system arranged on the land, has the functions of transmitting and receiving distress signals, storing remote data and tracing large fire accidents, and is composed of a communication unit, a storage unit and an alarm unit. The intelligent ship-borne system is connected with the shore-based cloud system through the satellite communication technology, infrared thermal imaging and multi-source sensing fusion is achieved, the device has the edge processing capacity, the multi-level fire judgment logic and the shore-based remote traceability function, and the device is suitable for the closed, complex and unattended ship engine room environment.

A dozer including a cabin, the dozer includes: an engine room located in front of the cabin, where an engine is disposed; an exhaust gas after-treatment device for purifying exhaust gases emitted from the engine; a first cooling device located in front of the cabin and capable of cooling the exhaust gas after-treatment device; and a second cooling device spaced apart from the first cooling device, with the cabin midway therebetween, and capable of cooling the engine.

The invention relates to the technical field of intelligent ship control, and particularly discloses an area control integration method and system based on an intelligent ship engine room, original operation data and multi-source communication data of equipment in each area of the engine room are collected, a unified real-time state vector is generated through protocol analysis and standardization processing, and a plurality of redundant processing nodes are processed in a unified mode. Synchronizing and verifying state data through a high-speed channel, constructing a global consistent state synchronization set, disassembling composite logic into atomic operation units with state constraints according to an upper-layer instruction and the synchronization set, packaging the atomic operation units into a private instruction sequence bound with the state, executing the instruction sequence by a main node, and executing the state synchronization set by a slave node; seamless switching to a standby node is realized through independent hardware monitoring when a fault occurs, and the standby node continuously executes based on the continuity of a state synchronization set, so that high-reliability uninterrupted operation of area control is realized; according to the method, the problems of instruction semantic distortion and single-point fault risk in heterogeneous equipment integration are solved, and the control accuracy and the intelligent level are improved.

The invention relates to the technical field of hygienic products, and discloses an intelligent monitoring method and management system for ship pollutant discharge, and the method comprises the following steps: S1, collecting cabin equipment operation parameters and pollutant discharge data through a multi-source sensor network; s2, an early warning threshold value is dynamically calculated based on the environment working condition and the load state; s3, evaluating the health state of the equipment and predicting potential faults; s4, judging the pollutant discharge compliance; s5, executing a multi-stage control strategy according to evaluation and judgment results; in the step S1, the equipment operation parameters at least comprise temperature, pressure, vibration frequency and oil quality indexes. According to the invention, by integrating various sensors and intelligent processing algorithms, real-time monitoring and dynamic adjustment of ship pollutant emission are realized, and ship emission compliance is ensured; meanwhile, the system can evaluate the health state of the equipment in real time, predict potential faults in advance and automatically execute multi-stage response measures, so that the safety, the environmental protection property and the operation efficiency of the ship are improved.

The invention relates to a screw ship unloader cabin material collaborative perception and autonomous operation method based on a multi-source laser scanning array. The problems that in the prior art, a single laser scanning system is large in scanning blind area, high in positioning error and poor in hatch recognition stability are solved. The method comprises the following steps: S1, heterogeneous laser scanning array networking; s2, pose difference-IMU deep coupling of motion point cloud distortion suppression is carried out; s3, manually marking target spot binding; s4, point cloud data processing; and S5, multi-stage anti-collision control is carried out. The method has the advantages that the hatch recognition stability and the coal pile model construction precision are remarkably improved; the point cloud is not distorted in a dynamic environment, so that the manual intervention and the accident rate are effectively reduced; and the technical requirements of unattended ship unloading operation are met, and high industrial adaptability is achieved.

The invention discloses a seabed dipole-dipole electromagnetic detection system and method carried on a remote control underwater robot, and belongs to the technical field of seabed metal mineral resource fine exploration. The system comprises a remote control underwater robot (ROV), a retractable receiving coil extension bracket, a transient electromagnetic transmitting coil, a transient electromagnetic receiving coil, a transient electromagnetic main engine room and an instrument fixing bracket. The extension bracket is controlled through the hydraulic retraction device, so that the receiving coil is arranged away from the ROV body, and the interference of the equipment body on electromagnetic signals is obviously reduced. The ROV performs low-altitude cruising on the seabed along a preset fine measuring line to acquire transient electromagnetic data, and the actually measured data is corrected in real time by using the full-space seawater environment response in the diving process, so that the system interference is effectively inhibited. According to the method, the high-resolution electromagnetic detection capability of ore bodies such as seabed polymetallic sulfide is improved, and the method is suitable for mineral resource investigation of complex terrains and small-scale regions.

The method comprises the following steps that a tiller and the upper conical surface of a rudderstock are matched in advance, and steering engine equipment is arranged in a steering engine room in advance; the main deck is provided with a permanent rudderstock hanging opening cover with a sealing cover; when a berth area rudderstock enters a cabin, a false nut tool is installed at the end of the rudderstock, hierarchical regulation and control of the rudderstock angle are achieved through a lifting lug, inclined pulling of a steel wire rope and insertion of round steel into a guide hole, and it is ensured that the rudderstock penetrates into a rudder sleeve along the center line of a rudder system. The problem that the rudderstock obliquely penetrates through the cabin due to the inclination angle of the slipway is solved; the steering engine room is sealed in advance, the rudderstock is precisely put into the room at the millimeter level, and the construction efficiency and quality are remarkably improved.

The invention provides a ventilation overflow method for oil tanks in a cabin area. The ventilation overflow method comprises the following steps that the number of ventilation pipes of all the oil tanks is determined; after the number of each oil tank vent pipe is determined, the pipe diameter of the oil tank vent pipe is determined according to the pipe diameter of the injection pipe; ventilating pipes with corresponding pipe diameters are led to a chimney trunk on a deck 1 from the top in each oil tank; a horizontal ventilation header pipe is arranged at the position of a chimney trunk on a deck 1, and ventilation pipes of all oil tanks are converged into the ventilation header pipe; an overflow alarm box is arranged on the deck surface 1; a discharge pipe is led to the bottom of the pipe section with the maximum pipe diameter of the ventilation main pipe to be connected to an injection port of an overflow alarm box below; the alarm overflow pipe is connected to the overflow cabin; the overflow alarm box is provided with an alarm vent pipe, and one path extends to the chimney top. A safe and feasible ventilation and overflow scheme is provided for the oil tank in the engine room area, ventilation is concentrated, arrangement of ventilation pipelines is reduced, overflow pipelines are ingeniously arranged, the overflow response time is prolonged, and the safety of a ship is greatly improved.

The invention discloses an oil-electricity dual-drive ship outboard engine which comprises an engine body structure and a connecting support, the engine body structure is connected with the tail of a ship through the connecting support, the engine body structure can rotate along the connecting support, the engine body structure comprises an engine body, and an engine room is installed at the upper end of the engine body; a gearbox is installed at the lower end of the machine body, and a vortex baffle is integrated on the machine body and located above the gearbox. The paddle mechanism is installed through the gear box and located below the vortex blocking plate, and when the paddle mechanism rotates, forward power is provided for the ship; the electric drive unit is installed through the engine room, the oil drive unit is also installed through the engine room, and the oil drive unit and the electric drive unit are isolated; a clutch transmission device; the device is electrically driven at a low speed and is driven by fuel oil at a high speed.

The invention relates to the technical field of fire early warning, and discloses a marine engine room fire multi-sensor fusion automatic early warning system, which comprises a data analysis unit, a baseline adjustment unit, a data correction unit, an anomaly analysis unit, a cooperative calculation unit and a fire early warning unit, and is characterized in that the thermal state of an engine room is accurately reflected through a global working condition coefficient generated by the data analysis unit; a dynamic sensing datum line generated by the baseline adjustment unit can adapt to working condition changes in real time, the data correction unit eliminates interference and generates refining abnormal signals, the abnormity analysis unit generates a single-dimensional burst strength index through abnormal energy flux and other parameters to achieve accurate scoring, and the cooperative calculation unit and the fire early warning unit are matched with each other. According to the method, the fire early warning instruction is generated, the accuracy of multi-sensor cooperative fire discrimination is improved, meanwhile, the adaptability of the early warning scheme to dynamic working conditions is enhanced, and the accuracy of cabin fire monitoring is guaranteed.

The invention discloses a closed cabin multi-sensor fire monitoring and self-adaptive control method and system, and particularly relates to the field of fire monitoring and control, and the method comprises the steps: collecting and extracting a first disaster feature through a multi-modal sensor, fusing the confidence of the sensor, and predicting the fire feature through the combination of a long-short-term memory network and a topological structure; and finally generating a fire extinguishing instruction matrix and optimizing task allocation. According to the closed cabin multi-sensor fire monitoring and self-adaptive control method and system, a multi-modal sensor array is deployed, and a hardware timestamp protocol is adopted, so that a data basis is provided for dynamically adapting to multi-modal characteristic changes in different fire source development stages; the fire behavior development stage is quantified through the disaster situation stage recognition model, so that the fire behavior decision can be dynamically adjusted according to the real-time stage index; through a long-short-term memory network algorithm and in combination with cabin topological data, adaptive prediction of a fire diffusion path is realized, and the limitation of a traditional predefined mapping table is broken through.

The invention discloses a ship electromechanical equipment fault diagnosis system and method based on transfer learning, and the system comprises an equipment data preprocessing layer, an equipment fault diagnosis model, and an optimized fault diagnosis model layer. The equipment data preprocessing layer comprises a working condition data acquisition unit, a time sequence data processing unit and a working condition feature fusion unit; the equipment fault diagnosis model comprises a source domain, a target domain, a fault attention unit and a fault diagnosis unit; a feature mapping network is trained by adopting a transfer learning method through electromechanical equipment working condition features to obtain an equipment fault diagnosis model; aligning the characteristics of the working condition characteristic vectors distributed in the source domain with the characteristic vectors of the target domain through a gradient inversion method to obtain an equipment fault network; the method can be directly deployed to an intelligent cabin system of the unmanned ship, real-time fault diagnosis of electromechanical equipment is realized, and a powerful guarantee is provided for safe operation of the unmanned ship.

The invention belongs to the technical field of liquid carbon dioxide transport ships, and particularly relates to a novel liquid carbon dioxide transport ship adopting a fiber composite liquid cargo tank. The ship comprises a main ship body. The main ship body comprises a tail module, a cabin module, a cargo compartment module and a head module. A plurality of independent cargo compartment chambers are arranged in the cargo compartment module, and the adjacent cargo compartment chambers are separated through transverse compartment walls; an independent carbon dioxide liquid cargo tank, a top ballast tank and a bottom ballast tank are arranged in each independent cargo compartment; the carbon dioxide liquid cargo tank is made of a fiber composite material or a combination of steel and the fiber composite material and comprises an inner container and a winding layer, and the cross section of the carbon dioxide liquid cargo tank is of a bilateral symmetry polygonal structure. The carbon dioxide liquid cargo tank is connected with the hull structure through supporting blocks. The liquid carbon dioxide transport ship is high in cargo hold area capacity utilization rate, high in stability and reliability and low in capacity requirement for hoisting facilities in the construction process.

A personal watercraft includes a watercraft body provided with a deck, a hood, and a locking mechanism. The deck includes a driver boarding portion and an opening forming portion where an opening is formed forward of the driver boarding portion and an engine room is partitioned below the opening. The hood, to which a steering shaft is attached to cause a handle to be exposed upward, covers the opening from above to allow opening and closing by pivoting with respect to the deck by using a front end supported by the opening forming portion as a fulcrum. The locking mechanism is a mechanism that fixes the rear end of the hood to the deck with the opening closed, and includes a first locking part and a second locking part disposed with spacing in the left-right direction.

Systems and apparatuses include a container for a generator set. The container includes a housing including a cooling room structured to support a radiator and a radiator fan within the housing, an exhaust room structured to support an aftertreatment system, an engine room structured to contain the engine and the alternator within the housing, an air intake system positioned adjacent the engine room, and a control room structured to support control equipment for the generator set. The exhaust room may further support after treatment components including a muffler and an exhaust pipe.

The utility model relates to a hull frame and an all-terrain ship hull. The hull frame comprises a hull bottom frame, two side frames and a separation frame, the hull bottom frame is a rectangular frame body extending horizontally and transversely, one side of the hull bottom frame is obliquely bent upwards to form a bow part, the other side of the hull bottom frame is a stern part, and the two side frames are vertically installed at the two side positions of the hull bottom frame correspondingly; the ends, located on the bow part, of the side frames extend upwards in an inclined mode with the same inclination angle with the ship bottom frame, the two separation frames are arranged in the extending direction of the ship bottom frame in a spaced mode, and the separation frames divide an open space defined by the ship bottom frame and the side frames into a bow cargo hold reserved area, a middle cockpit reserved area and a stern cabin reserved area in sequence. The stern part of the ship bottom frame continues to horizontally and transversely extend out of a stern platform reserved area, and a rudder blade mounting base is fixed to the stern platform reserved area. The all-terrain ship body adopts the ship body frame. According to the hull frame and the all-terrain ship hull, the machining difficulty can be reduced, and the sailing adaptability of the hull can be improved.

To provide a water-cooled intercooler system that can efficiently cool a radiator disposed on a cooling water circuit that cools the cooling water flowing through the water-cooled intercooler.SOLUTION: A water-cooled intercooler system comprises: an engine room disposed at a front of a vehicle; an internal combustion engine mounted in the engine room; a water-cooled intercooler that cools air compressed by a turbocharger of the internal combustion engine; a radiator that exchanges heat between a cooling water flowing through the water-cooled intercooler and air; and a chamber which is arranged on a front side of the radiator of a vehicle, and in which the air passes through the radiator from the front to rear. The chamber includes: a first opening that can take in the air from the engine room; and a second opening that can take in the air outside the vehicle.SELECTED DRAWING: Figure 2

The invention belongs to the technical field of ship body structures, and discloses a ship body double-layer bottom structure and an installation method thereof, in the installation process of the ship body double-layer bottom structure, when a worker assembles an inner bottom plate body, a ship outer plate, a solid rib plate and a rib, installation of a slow-installation cover plate can be delayed, and when the structure is assembled, installation of the slow-installation cover plate is facilitated. In addition, after installation of the inner bottom plate body, the ship outer plate, the solid rib plate and the ribs is completed, a worker can also firstly install other equipment in the bilge of the ship body, due to the fact that the slow installation cover plate is not installed yet, the large operation space is achieved at the moment, and after installation of the structure is completed, the worker can conveniently install the inner bottom plate body, the ship outer plate, the solid rib plate and the ribs. The buffer cover plate is installed in the containing groove and fixedly connected with the ship outer plate, the groove wall of the containing groove, the solid rib plate and the ribs at the same time, due to the fact that the surface of the buffer cover plate is flush with the surface of the inner bottom plate body, the space above the inner bottom plate cannot be occupied, and more installation space can be reserved for a liquid tank or cabin equipment.

The invention discloses a real-time semantic segmentation method for a marine engine room inspection area, and the method comprises the steps: S1, obtaining a marine engine room inspection area image, and carrying out the preprocessing of the marine engine room inspection area image, and obtaining a processed marine engine room inspection area image; s2, establishing a marine engine room semantic segmentation model, training the marine engine room semantic segmentation model based on the processed marine engine room inspection area image, and when a set loss function converges, obtaining the trained marine engine room semantic segmentation model; and S3, performing semantic segmentation on an actual ship inspection area based on the trained ship cabin semantic segmentation model. The model provided by the invention not only reduces the model calculation amount, but also improves the model operation speed, and improves the model accuracy by paying attention to the edge information of the cabin inspection area; and precise segmentation of the inspection road surface and the stairs in the image is realized. According to the invention, accurate segmentation of the inspection area of the marine engine room is realized, and powerful support is provided for subsequent unmanned and intelligent work of the marine engine room.

The invention discloses an optimized arrangement structure of a low-pressure gas pipe route for an LNG (liquefied natural gas) dual-fuel container ship, which comprises an LNG fuel cabin, a gas preparation room and a cabin area, the gas preparation room is arranged above the LNG fuel cabin, the gas preparation room is communicated with the cabin area through a low-pressure gas pipe, and the cabin area is communicated with the LNG fuel cabin. And the low-pressure gas pipe is arranged in a way that the gas preparation room passes through the longitudinal hatch coaming area above the main deck and is connected to the cabin area. According to the invention, the gas pipe is arranged in the open area above the main deck and the joints of the pipes are all welded, so that a single-wall pipe replaces a double-wall pipe, the channel arrangement of the main deck is not influenced, the length of the gas pipeline is not increased, and the construction cost is reduced.

The utility model discloses a machine room, and relates to the technical field of machine rooms, the machine room comprises an outer shell, an inner shell, a working assembly, a cooling assembly and a movable assembly, the outer shell is provided with a ventilation opening; the inner shell is arranged in the outer shell, and the inner shell is made of a high-thermal-conductivity material; the working assembly is arranged in the inner shell; the cooling assembly is arranged in the inner shell and used for cooling air in the inner shell. The movable assembly is movably connected with the outer shell and can move relative to the outer shell to open or close the ventilation opening. According to the technical scheme, the problems that an existing machine room is high in cost, large in size and difficult to maintain and manage due to the fact that complex or expensive equipment is input for cooling can be solved.

The application discloses a kind of ship shafting installation process, comprising the following steps: step one: shaft generator is assembled with combined auxiliary tooling to shaft generator base by step two: the assembled shaft generator with combined auxiliary tooling;Step three: combined auxiliary tooling is fixed with shaft generator base by bolt, nut;Step four: intermediate shaft is suspended in eccentric position of stern shaft beam in advance, install stern shaft;Step five: remove first auxiliary tooling;Step six: release the intermediate shaft suspended in advance, install the flange, finally hoist the main engine of ship;Beneficial effect is, the installation work of original shaft generator stator box and rotor in engine room is completed in workshop in advance, shaft generator can be advanced into cabin after assembly, neither affect the line drawing of axis, nor reduce hoisting operation time and the time of installing shafting in engine room, process flow is simplified, and workload is greatly reduced.

The invention discloses a multi-purpose cabin upper platform vibration reduction structure and a vibration reduction simulation method.The multi-purpose cabin upper platform vibration reduction structure comprises an upper platform, and a lower platform is arranged below the upper platform; transverse girders are arranged at the bottom of the upper platform and the bottom of the lower platform; the transverse girder is arranged behind the cabin opening; a plurality of longitudinal girders are arranged at the bottom of the upper platform; a plurality of vertical supporting columns are arranged below the transverse girder at the foremost end of the upper platform; the lower ends of the vertical supporting columns are connected to the transverse girder at the foremost end of the lower platform. The transverse girder at the foremost end of the upper platform is flush with the opening edge of the cabin. The problem that vibration of the cabin platform is severe is solved; the vibration test standard of the cabin platform opening area is met, and the vibration risk of a real ship is reduced.

The application relates to the technical field of air flow treatment equipment, and particularly discloses an air flow treatment device for a ship engine room, which comprises a first muffler, a second muffler, a column body, a first heat exchange assembly and a second heat exchange assembly, and a heat exchange pipe. The second muffler is arranged in the first muffler along the axial direction of the first muffler; the column body is arranged in the second muffler along the axial direction of the second muffler; the first heat exchange assembly is arranged between the first muffler and the second muffler; the second heat exchange assembly is arranged between the second muffler and the column body; the heat exchange pipe has a heat exchange medium inside; the outer wall of the heat exchange pipe is in abutment with the first heat exchange assembly and the second heat exchange assembly; the heat exchange pipe is used for heat exchange with the first heat exchange assembly and the second heat exchange assembly; the two ends of the heat exchange pipe are respectively provided with an inlet end and an outlet end; and the inlet end and the outlet end extend out of the outer wall of the first muffler. The device can adjust the temperature of the air flow input into the engine room, and meets the requirement of the air temperature of the ship engine room.

To promote heat radiation of a cable for supplying electric power to an electric heating type catalyst device.SOLUTION: The vehicle includes the engine 20 located in the engine room 110, the EHC50 that defines the flow passage of the exhaust gas together with the exhaust gas pipe 40 in the engine room 110 and supports the catalytic converter on the catalytic converter support that generates heat by being energized, and the third EHC50 cable 82 that connects the power supply device 70 for supplying power to the EHC50 and the 2EHC, and at least a part of the third 2EHC cable 82 is located on the upward direction side with respect to the 28A of the upper end surface of the head cover 28 of the engine 20.SELECTED DRAWING: Figure 1

The application discloses a safety door device of a ship engine room shed, which comprises a cabin aisle, an inner door arranged at the entrance of the cabin aisle, an inner protection mechanism arranged in the cabin aisle, an outer protection mechanism connected to the outer wall of the cabin aisle, and an auxiliary mechanism arranged in the outer protection mechanism. When the protection door is closed, the latch plate is inserted into the U-shaped groove, the pull block is pulled outwards, the pull block pulls the spring and drives the plug block to move out of the plug hole, the insertion rod can be inserted into the through hole and the square groove, the insertion rod fixing column latches the plate, thereby fixing the protection door. In addition, the insertion rod is completely immersed in the inner side of the through hole, the insertion rod can be located at the central position of the protection door by using the fact that the pull block is located at the center of the protection door, the two sides of the peripheral frame are prevented from being damaged, the insertion rod can be taken out at will, is far away from the two side edges of the peripheral frame, and the time for opening the protection door is prolonged.

The application discloses a device and method for detecting the tightness of a maintenance short pipe outside a ship, and the device and method can effectively solve the problem of high risk coefficient faced by a frogman in underwater maintenance operation outside the ship.

This invention belongs to the field of data processing technology, specifically relating to an IoT data edge computing processing method for ship-shore collaborative management. The method includes: acquiring real-time operating data of the ship's engine room equipment; loading a physical association weight matrix, calculating the local spatiotemporal coupling strength index of each sensor by calculating the cross-correlation coefficient and time lag between each sensor within the current window; extracting the transient change characteristics of the data at the current moment, calculating the prediction residual of the current observation using a prediction model, and calculating the adaptive transmission priority weight of each sensor's data based on the local spatiotemporal coupling strength index; and dividing the data stream into different levels according to the adaptive transmission priority weight, and executing a dynamic queue scheduling strategy for each level. This invention can improve the accuracy of fault diagnosis while reducing redundant data uploaded by the system.

The invention provides an optimization method and system for a marine engine room ventilation system, and relates to the technical field of analogue simulation, and the method comprises the steps: constructing a ventilation system simulation model of a marine engine room; according to the structure information and the working condition information of the ventilation system simulation model, determining the total heat dissipating capacity of the equipment; determining a reference ventilation quantity and a ventilation quantity area distribution table according to the total heat dissipation quantity of the equipment; setting the reference ventilation quantity and the ventilation quantity area distribution table into a ventilation system simulation model; performing fluid dynamic simulation on the ventilation system simulation model to generate a problem list; the optimal ventilation system structure parameters are optimized and determined through a swarm intelligence algorithm by taking weakening of hot spots, reduction of dead corner volume fraction reduction and weakening of a backflow path as targets. Hot spot areas in the cabin can be effectively weakened, the volume fraction of ventilation dead corners is reduced, the short-circuit backflow phenomenon is weakened, and the overall energy efficiency and design reliability of a ventilation system are remarkably improved while safe operation of equipment is guaranteed.