632results about "Vessel ventillation/heating/cooling" patented technology

The invention discloses a large-scale cruise ship water chilling unit pipe network cold storage intelligent energy-saving control method based on double-layer deep reinforcement learning, which comprises the following steps: 1, carrying out inherent cold storage engineering modeling on a chilled water pipe network of a water chilling unit to obtain an energy balance relationship between equivalent cold storage capacity and cold release sustainable time of the pipe network and bearable cold capacity; the relationship is used as a physical prior to introduce strategy learning and a security boundary; 2, constructing a double-layer deep reinforcement learning architecture; 3, a safety layer is additionally arranged in the double-layer deep reinforcement learning architecture, the safety layer cuts and projects output feasible regions of a target layer and a sublayer through a hard constraint and barrier mechanism, the water supply temperature, the temperature difference, the start-stop interval, the condensation temperature and the power change rate are ensured, and the maritime affair safety requirement is met; and 4, on the basis of a pipe network inherent cold storage model, a double-layer deep reinforcement learning framework and a safety layer, peak load shifting control of low-load cold charging-high-load cold discharging is achieved, and unit cold energy consumption of the water chilling unit is reduced.

The invention discloses a marine energy-saving variable air volume indirect type air conditioner, and relates to the technical field of air conditioning systems, the marine energy-saving variable air volume indirect type air conditioner comprises an air conditioner assembly, the air conditioner assembly comprises an air conditioner shell, one side of the air conditioner shell is fixedly communicated with a fresh air pipeline, and an air return opening is formed in the position, close to one side, of the top of the air conditioner shell. According to the marine energy-saving variable-air-volume indirect type air conditioner, by starting a multi-stage electric push rod, a piston plate is driven to extrude a citric acid solution forwards into a return air inlet pipeline and a fresh air inlet pipeline, in the air inlet process, the citric acid solution can enter the heat exchanger body in air flow, descaling is conducted on the pipeline in the heat exchanger body, and the heat exchange efficiency is improved. Citric acid has good chelation ability and can generate chelation reaction with ions such as calcium and magnesium in incrustation to form a water-soluble complex, so that the purpose of removing the incrustation is achieved, and the citric acid has low corrosivity to stainless steel due to weak acidity.

The invention provides a ship waste heat recovery and reutilization system. The ship waste heat recovery and reutilization system comprises a waste heat collection unit and a solar energy collection unit, wherein the solar energy collection unit and the waste heat collection unit form a photo-thermal-waste heat complementary energy supply network; the thermal energy conversion unit adopts an ORC system; the energy storage unit, the heat energy utilization unit and the optimization control module are configured to monitor system operation data in real time, identify a low-efficiency operation state in which the waste heat recovery rate and the electric energy conversion efficiency do not reach a preset threshold value, and dynamically adjust key parameters of each unit based on a low-efficiency alternative solution corresponding to the operation state in an algorithm; the wide-range load fluctuation of the marine main engine is adapted, and the comprehensive benefit maximization of the system is realized; the adjustment mode comprises the following steps of: randomly disturbing the low-efficiency alternative solution by taking the median of the current population as a benchmark, and separating from local optimum; and determining the search direction based on the preference weight of the optimal alternative solution in the population, and finely adjusting the parameters through the local search of which the search range shrinks along with iteration.

A thermal management system for a marine vessel includes a closed loop circuit in which heat transfer fluid circulates, a first refrigeration component cooled or heated by the heat transfer fluid and configured to cool or heat air within a compartment on the marine vessel, and an open loop circuit. A pump is configured to pump water from a body of water in which the marine vessel is operating, through the open loop circuit, and back to the body of water. A second refrigeration component is configured to exchange heat between the closed loop circuit and the open loop circuit, and a water heater is configured to receive heat from the closed loop circuit to thereby heat potable water in the water heater.

The invention provides a marine ammonia fuel ventilation system and a control method and a control system thereof. The control method comprises the following steps: before a host is not connected, communicating an inlet pipe and a return pipe of an outer pipe of a double-wall pipe together, and carrying out an annular space tightness test; carrying out a leakage test on the valve, and testing whether the pneumatic double-stop ventilation valve is in a normal working state or not; when ammonia gas is detected, low-pressure nitrogen purging is started, and the ammonia gas is purged to an ammonia gas treatment device. By means of a high-pressure nitrogen automatic pressure testing mode, pipeline testing is conducted before the ventilation system is used, and it is ensured that the system is safe and reliable when used every time; a nitrogen purging valve group of the ammonia fuel ventilation system is provided with a tightness self-checking program, and the tightness of the valve is checked before each operation, so that the safety and reliability of the system are ensured when the system is used each time; besides a high-pressure nitrogen purging mode, a low-pressure nitrogen purging mode is designed, ammonia gas is purged to the ammonia gas treatment device, it is guaranteed that no ammonia gas leaks, and the safety of the system is improved.

Disclosed herein is a control system for a reliquefaction system for ships, in which boil-off gas generated from liquefied gas in an onboard storage tank is compressed by a compressor and the compressed boil-off gas is cooled and reliquefied through a heat exchanger. The control system includes: a reliquefaction line connecting the compressor to the storage tank; a control valve disposed downstream of the heat exchanger on the reliquefaction line to adjust a flow rate of boil-off gas flowing through the reliquefaction line; a flow rate regulator configured to control a degree of opening of the control valve; and a load controller configured to send a signal for adjusting a load of the reliquefaction system to the flow rate regulator, wherein, in the event of changes in load of the reliquefaction system, the load controller sends a predetermined set point indicative of a boil-off gas flow rate at a corresponding load to the flow rate regulator to adjust the load of the reliquefaction system.

The present invention relates to a boil-off gas reliquefaction system for a ship. The boil-off gas reliquefaction system for a ship according to the present invention, whereby boil-off gas generated from a liquefied natural gas (LNG) storage tank for a ship is reliquefied, comprises: a first heat exchanger for recovering cold heat from a first boil-off gas generated in the storage tank; a multi-stage compressor for compressing the boil-off gas that has passed through the heat exchanger; a high-pressure gas line for supplying high-pressure gas that is supplied from the multi-stage compressor; a low-pressure gas line for supplying the boil-off gas, which is supplied from the multi-stage compressor, as a low-pressure gas by using a decompression valve; a second heat exchanger in which heat exchange occurs between the high-pressure gas line and the low-pressure gas line downstream of the decompression valve; and a third heat exchanger by which the boil-off gas that has passed through the second heat exchanger is cooled by means of heat medium oil of a cryogenic chiller.

The utility model provides a marine condensate water collecting device, which relates to the technical field of condensate water recovery and comprises a box body, a water inlet pipe and a filter screen plate, the water inlet pipe is arranged at the top of the box body, a plurality of water outlet branch pipes are uniformly distributed at the top in the box body, and the water outlet branch pipes are communicated with the water inlet pipe; the filter screen plate is located below the water outlet branch pipe, a long-strip-shaped opening allowing the filter screen plate to stretch into is formed in one side of the box body, the filter screen plate comprises a filter screen, a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are fixed to the two sides of the filter screen respectively, a groove matched with the first mounting plate is formed in the inner wall of the box body, and the second mounting plate stretches out of the long-strip-shaped opening. The second mounting plate is provided with a control structure for controlling the filter screen plate and the box body to be fixed or separated, the control structure comprises a handle, and when the handle is pulled, the filter screen plate can be separated from the box body, so that the problems that the box body needs to be opened to dismount and clean the filter screen, and the dismounting process is relatively tedious, time-consuming and labor-consuming are solved.

The application discloses an ammonia dual-fuel ship air conditioning refrigeration system and method and a ship, and relates to the field of ship air conditioning refrigeration systems. The system comprises an air conditioning cold water unit system, a liquid ammonia cold energy recovery heat exchanger system, an air conditioning refrigerant water expansion tank and an air conditioner. The air conditioning cold water unit system, the liquid ammonia cold energy recovery heat exchanger system, the air conditioning refrigerant water expansion tank and the air conditioner are connected through circulating pipelines and corresponding valves. The air conditioning cold water unit system and the liquid ammonia cold energy recovery heat exchanger system are arranged in an ammonia fuel supply equipment room, and the air conditioning refrigerant water expansion tank and the air conditioner are arranged inside a driver's cabin. An air conditioning refrigerant water circulating pump is arranged on the circulating pipeline in the ammonia fuel supply equipment room. The application recovers and utilizes the cold energy of low-temperature stored ammonia fuel, solves the problem that a ship is difficult to maintain and replace refrigerant in the European Union region, saves electric energy of a dual-fuel ship, and plays a role in energy saving and emission reduction.

The application provides a method and system for controlling air-borne radioactivity in a control area cabin of a water surface nuclear power ship. A gradient negative pressure is formed in the control area cabin of the nuclear power ship, such as a nuclear power plant containment cabin, an auxiliary cabin, a pollution monitoring and decontamination cabin, and an access passage cabin, by using facilities such as an exhaust fan and a negative pressure compressor, so that the air-borne radioactivity generated during normal operation of the nuclear power plant is controlled. The application can better limit the range of air-borne radioactivity in the control area cabin, prevent the air-borne radioactivity from spreading and leaking to other cabins, and provide strong protection for the radiation safety of personnel on the nuclear power ship.

A ship has a hull, at least one double-shell tank mounted on the hull, having an inner tank storing liquefied gas and an outer tank covering the inner tank, at least one first discharge tower extending upward from the hull, at least one second discharge tower extending upward from the hull independently of the first discharge tower, a first discharge line connecting an upper portion in the inner tank and a tower interior of the first discharge tower, a second discharge line connecting the inner tank and an inter-tank region of the outer tank and a tower interior of the second discharge tower, and a pressure release device provided in the second discharge line, which is closed normally and opened when a pressure of the inter-tank region exceeds a prescribed inter-tank allowable value.

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

The invention discloses a thin ice channel keeping device and method based on thermal compensation and double-face heat preservation, the device comprises a plurality of floating tables, each floating table comprises an anchoring floating platform, a storage battery and a compressor are installed in each anchoring floating platform, and each anchoring floating platform is connected with an underwater bubble generating device through a pipeline and an air-dissolved ice making device; a wind-solar complementary power generation device is installed on the compressor and the anchoring floating platform, an ice surface monitoring sensor is installed on the bottom face of the anchoring floating platform, and the wind-solar complementary power generation device and the storage battery are electrically connected. The anchoring floating platform is fixedly connected with a heating rod, the heating rod comprises an outer pipe and a heating inner pipe, and the outer pipe is filled with a refrigerant; a gas-dissolved ice making device is installed on the anchoring floating platform and comprises a seawater conveying pipe, and a seawater spraying head is installed at the top end of the seawater conveying pipe. The thickness of an ice layer in a channel can be reduced, meanwhile, foam ice covers the surface of the channel, the mechanical strength of the ice surface is reduced, and ordinary ships can break ice conveniently.

According to an embodiment of the present invention, a fuel processing system comprises: a fuel supply line for supplying fuel stored in a storage tank to a demand point; a fuel recovery line for recovering fuel discharged from any one of the fuel supply line and the demand point; a separator connected to the fuel recovery line to store the fuel recovered from any one of the fuel supply line and the demand point; a knockout drum connected to the fuel recovery line to store the fuel recovered from the demand point or a fuel valve unit for supplying the fuel to the demand point from the upstream side of the demand point; and a fuel processing unit for processing the fuel by using a disaster prevention material. The separator is connected to the knockout drum to transfer at least a part of the fuel to the knockout drum. The fuel processing unit processes the fuel transferred from the knockout drum.

The present application relates to the field of ship navigation technology, in particular to a crew sleep control method suitable for navigation state, in response to a bad weather request for switching the navigation mode of a ship to a bad weather navigation mode, the activity state of personnel in each cabin of the ship is obtained; wherein the personnel activity state at least includes sleep state and wake state, the sleep rating and atmosphere information of each sleep cabin are obtained; wherein the sleep rating reflects the number of personnel in the sleep state in the sleep cabin, and the atmosphere information reflects the environment information in the sleep cabin, and the atmosphere information of the slave sleep cabin is adjusted according to the atmosphere information of the master sleep cabin, so that they are consistent.

This invention provides a passenger ship air conditioning system, comprising: a water system including a cooling module, a preheating module, a reheating module, a first coil, and a second coil; a first outlet pipe connecting the outlet of the cooling module and the inlet of the first coil, and a first return pipe connecting the inlet of the cooling module and the outlet of the first coil; the outlet of the preheating module connected to the first outlet pipe via a pipe, and the inlet of the preheating module connected to the first return pipe via a pipe; a second outlet pipe connecting the outlet of the reheating module and the inlet of the second coil, and a second return pipe connecting the inlet of the reheating module and the outlet of the second coil; and an air system including an air duct, with the first and second coils arranged sequentially along the air supply direction within the air duct. This invention adds a reheating cycle to the water system, lowering the preheated water temperature in winter to meet the cooling needs of the interior cabins and some technical cabins that require cooling even in winter.

The application discloses a centralized ventilation system for the tail of a cruise ship, comprising a centralized ventilation platform, a ventilation unit and a plurality of exhaust branch pipes; the centralized ventilation platform is arranged on the top of the elevator machine room at the tail of the cruise ship and protrudes upward from the deck of the area where the elevator machine room is located; a plurality of ventilation openings are arranged on the centralized ventilation platform; the ventilation unit is correspondingly arranged on each ventilation opening; the first end of each exhaust branch pipe is connected with the exhaust opening of each room requiring exhaust at the tail of the cruise ship, and the second end of each exhaust branch pipe is connected with the ventilation opening of the centralized ventilation platform; the exhaust branch pipe is used for guiding the gas to be discharged from each room requiring exhaust to the centralized ventilation platform for centralized discharge. The centralized ventilation platform arranged in the application can greatly reduce the number of structural openings of the deck and superstructure, reduces the weakening of the local structural strength of the ship body, and is favorable for guaranteeing the structural safety of the tail of the cruise ship.

The invention discloses a low-vibration integrated marine variable-frequency air conditioner, and relates to the technical field of marine air conditioners, the low-vibration integrated marine variable-frequency air conditioner comprises a variable-frequency air conditioner body, and a bottom vibration reduction assembly is arranged in the variable-frequency air conditioner body. During use, the outer surface of the rubber anti-vibration pad is coated with the fluorosilane super-hydrophobic coating, the outer surface of the bottom anti-vibration pad is coated with the gradient ceramic coating, and the anti-vibration pad is suitable for a high-salt-mist environment. The bottom vibration reduction assembly and the module vibration reduction assembly are both installed in the variable frequency air conditioner body, vibration energy is directly absorbed in the box body, transmission of vibration to the bottom of the box body is reduced, the influence of vibration on a ship body is reduced from the source, low-vibration operation is achieved, meanwhile, the bottom vibration reduction assembly and the module vibration reduction assembly are protected through the box body, and the service life of the ship body is prolonged. The air conditioner is prevented from being directly exposed in a high-salt-fog environment and making contact with high-salt-fog air for a long time, the aging and corrosion risks are reduced, the service life of each vibration reduction structure is prolonged, and the stability of the air conditioner is improved.

The utility model provides an in-ship ventilation device for a tourist ship, and relates to the technical field of in-ship ventilation, the in-ship ventilation device comprises an air blowing cylinder with a built-in fan, the air inlet end of the air blowing cylinder is provided with a connecting frame, the connecting frame is internally provided with two symmetrically distributed filtering pieces, the surface of the connecting frame is rotatably connected with a hollow column in a penetrating manner, and the hollow column and the air blowing cylinder are coaxially distributed; the two ends of the hollow column are located on the two sides of the connecting frame respectively and provided with an outer cover and an inner cover respectively, the inner cover is located between the connecting frame and the draught fan, and a shower head used for reversely flushing and drying the filtering pieces is slidably installed in the inner cover. The other filtering piece is used for filtering sea wind, it is guaranteed that the sea wind is continuously treated and conveyed, and air circulation in a cabin is not affected.

The application relates to the technical field of ship engineering, in particular to a ship mechanical fault alarm detection device, which comprises a power cabin, a connecting rod arranged on one side of a moving plate, an L-shaped plate installed on one side of the connecting rod, a cylinder arranged on one side of the L-shaped plate, a connecting plate fixedly connected with one end of the cylinder, a processor arranged on the upper side of the connecting plate, an alarm installed on one side of the processor, a buzzer installed on the other side of the processor and a signal transceiver arranged on one side of the buzzer.

The invention discloses a ship ventilation structure with high protection performance, and relates to the technical field of ship ventilation, the ship ventilation structure comprises a window frame, a window body and a storm cover, the window frame is fixedly connected to a ship body, the window body and the storm cover are movably connected to the window frame, and the window frame, the window body, the window frame and the storm cover are fixed through fixing assemblies. Part of the window body extends into the window frame, the inner side of the window body is fixedly connected with an abutting ring, and the inner side of the window frame is fixedly connected with a water retaining strip. When entering the inner side of the window frame and the connecting position of the window frame and the window body, rainwater or seawater flows downwards into the drainage groove under the action of gravity and is drained out of the window frame, so that the situation that much water is accumulated at the lower position of the inner side of the window frame and the connecting position of the window frame and the window body, and a thick ice layer is formed along with temperature reduction is avoided as much as possible; and the connecting position of the window frame and the window body is tightly bonded, and the opening difficulty is large.

The application provides a ship cargo hold and a ship cargo loading system, and relates to the technical field of ship cargo hold air exhaust. The cargo hold hatch coaming is arranged on the part of the main deck extending from the top of the cargo hold body, and the outer air duct is arranged on the outer side of the outer wall of the cargo hold hatch coaming. The gas in the cargo hold cavity can be exhausted along the outer air duct. Since the gas in the cargo hold cavity can be exhausted through the outer air duct on the outer side of the cargo hold hatch coaming at the top of the cargo hold body, the dangerous gas generated by volatilization and gathered at the top of the cargo hold cavity can be more easily exhausted, the loading height of the cargo in the cargo hold cavity is effectively increased, the technical problem that the existing cargo hold air duct design limits the loading height of the dangerous goods in the cargo hold, reduces the cargo carrying capacity of the ship, and the dangerous gas gathered at the top of the cargo hold is not easy to exhaust is solved.

The invention discloses a high-strength corrosion-resistant composite material bacterial type ventilator, relates to the technical field of composite materials, and solves the problem of serious corrosion of an exposed deck ventilator from the source by utilizing the characteristics of light weight, high strength and corrosion resistance of a fiber reinforced resin matrix composite material. The mushroom type ventilator comprises a mushroom type ventilator body, a connecting support, a cover plate, a lead screw adjusting seat and a hand wheel. A plurality of connecting supports are arranged on the outer wall of the mushroom type ventilator body in the circumferential direction, and the cover plate is arranged on the mushroom type ventilator body and the connecting supports. A lead screw adjusting seat and a hand wheel are arranged on the top of the cover plate, and the hand wheel is connected with the lead screw adjusting seat.

The invention relates to a method (100) for cooling a fuel (B) for a vessel (80), the vessel (80) having at least one fuel tank (12) and a liquefied gas storage tank (14), comprising the following steps:-(102) extracting a fuel flow (BS) from the liquid phase of the fuel (B) contained in the fuel tank (12),-(104) guiding the fuel flow (BS) into a cooling unit (20); -(106) cooling the liquid fuel flow (BS) in the cooling unit (20), the fuel flow (BS) in the cooling unit (20) being cooled relative to a BOG flow (BGr) which is conducted from the liquefied gas storage tank (14), is reliquefied and is conducted through the cooling unit (20), and-(108) conducting the cooled fuel flow (BSk) back into the fuel tank (12).

A control system (300) for a transport engineless refrigeration unit (301), the control system comprising: a controller (302) for communication between a vehicle (307) and a plurality of vehicle devices, the controller comprising: a vehicle data connection (306) for transmitting data to and from a vehicle; a vehicle engine on / off connection (308) for triggering start-up of the vehicle engine; a plurality of device data connections (314), wherein each device data connection transmits data to and from at least one device external to the controller; and a device power connection (313), wherein the device power connection supplies power from the controller to at least one device external to the controller.

Provided is a hybrid propulsion vessel that may be environmentally friendly and propelled with high efficiency by utilizing both electric power and heat, two energy forms generated in a fuel cell simultaneously, and by obtaining propulsive force as a propeller is rotated by any one or both of a steam turbine power source driven by heat as a primary power source and an electric motor power source driven by electric power as a secondary power source.

The present invention relates to a system (1) for managing a gas contained in a tank (2), the system (1) comprising: - at least one supply circuit (6); - at least one heat treatment circuit (8); - at least one first heat exchanger (13); - at least one cooling circuit (17); and - at least one second heat exchanger (16). In the system (1), the heat treatment circuit (8) comprises at least one first branch (9) connected to a first compression stage (11) of a compression device (7) and a second branch (10) connected to a second compression stage (12) of the compression device (7), and the first branch (9) and the second branch (10) merge at a merging point (14) in the heat treatment circuit (8).

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.

According to the flow guide type ventilation device, each ventilation device assembly is provided with two tail end air outlet pipes which guide air to flow in the axial direction of the tail end air outlet pipes, a deflection angle alpha is formed between the axial direction of each tail end air outlet pipe and the axial direction of a main ventilation device, and a rotatable airflow guide switch baffle is arranged at the joint of the main ventilation device and the tail end. A booster fan is arranged below the switch baffle; the plane of the airflow guide switch baffle is perpendicular to the axis of the main ventilation device. Through reasonable airflow guiding, it is guaranteed that leaked gas cannot be leaked into the ship body personnel living and working areas, and personnel cannot be exposed in the poisonous area range. Leakage gas passes through the pressurizing ring and the pressurizing fan, so that the flow speed of airflow is increased in the upward direction of the axis of the main ventilation device, and it is guaranteed that the leakage gas is far away from the ship body when sinking.

The application discloses an air conditioner with built-in shutoff air lock and a ship, and relates to the technical field of air lock arrangement of ship air conditioners. The air conditioner with built-in shutoff air lock comprises an air conditioner body, a rotating shaft, a plurality of shutoff blades and a driving device. The air conditioner body has a shell, and the inside of the shell is provided with an air duct. The rotating shaft is arranged in the inside of the shell. The plurality of shutoff blades are fixedly arranged on the rotating shaft along the axial direction of the rotating shaft. The plurality of shutoff blades are all located in the inside of the shell and in the air duct. The driving device is in transmission connection with the rotating shaft. When the rotating shaft drives the shutoff blades to rotate to a shutoff position, the plurality of shutoff blades are arranged in sequence along the airflow direction and jointly block the air duct. When the shutoff blades rotate to an opening position, the plurality of shutoff blades are arranged in parallel with the airflow direction to make the air duct conductive. The air conditioner with built-in shutoff air lock can effectively reduce the cost of the shutoff air lock system of the ship air conditioner, and can improve the problems of inconvenient installation, inconvenient operation and space occupation of the external air lock.