1340results about "Vessel ventillation/heating/cooling" patented technology

The invention discloses a marine central air conditioner health management and fault diagnosis system, which relates to the technical field of air conditioner health management and comprises a sensor module, a data acquisition module, a health management module, a fault diagnosis module, a user interface management module, a communication module and a maintenance management module. The sensor module is used for being installed on all devices and pipelines of the central air conditioner through sensors and detecting state parameters of the central air conditioner. The data acquisition module receives analog quantity signals of various sensors. Through cooperative work of various sensors and various functional modules, various parameters of the central air conditioner can be comprehensively monitored, faults including state monitoring and fault diagnosis of key parts such as a compressor, a refrigerant water system and a cooling water system can be accurately diagnosed, the equipment state can be monitored in real time in cooperation with the health management module, and the health of the central air conditioner can be improved. And reasonable maintenance suggestions and decisions can be provided through data analysis and evaluation to prevent faults in advance, so that the reliability and the service life of the equipment are improved.

The invention belongs to an air purification device of ship ventilation equipment in the technical field of ship ventilation equipment. A dust filter screen (130) is installed in the purification box (100), the supporting rod (200) is fixedly installed on the inner wall of the purification box (100), the top of the supporting rod (200) is rotationally connected with a screw rod (210), the top of the purification box (100) is fixedly provided with a motor (220), one end of the screw rod (210) is connected with a rotating shaft of the motor (220), the side wall of the screw rod (210) is in threaded connection with a movable block (230), the side wall of the movable block (230) is connected with a brush (240), and the brush (240) is connected with a brush (240). The brush (240) is attached to the side wall of the dust filter screen (130) in a sliding mode. According to the air purification device of the ship ventilation equipment, it is ensured that air is reliably purified, automatic cleaning and automatic sterilization of the dust filter screen are achieved, the labor intensity of workers is relieved, and the air purification quality is improved.

The invention discloses a ventilation and smoke exhaust system for a cargo hold of an automobile transport ship. The ventilation and smoke exhaust system is composed of a cargo hold blower, a cargo hold reversible fan, a cargo hold ventilation device, a cargo hold exhaust outlet, a foam fire extinguishing device, a temperature sensor and a fire alarm device. The smoke exhaust method is achieved through the smoke exhaust system, and the cargo hold air feeder and the cargo hold reversible fan arranged on the system meet the ventilation frequency of the cargo hold loading and unloading working condition required by specifications; when the cargo hold reversible fan is in the reversible exhaust state, the cargo hold blower can meet the ventilation frequency of the cargo hold navigation working condition. The system is controlled by signals of the fire alarm device, when a fire occurs in the cargo hold, fire extinguishing is conducted on the cargo hold through the foam fire extinguishing device, the cargo hold reversible draught fan serves as a smoke exhaust draught fan to conduct smoke exhaust, and smoke exhaust control is conducted through a temperature sensor on an air supply and exhaust pipeline. The fire extinguishing and smoke discharging functions are integrated while the number of ventilation times of the cargo hold specified by the specification is met, the specification requirements of the cargo hold for loading the new energy vehicle are met, and the environmental safety of the cargo hold is ensured.

The invention provides a ship outer plate invisible pneumatic air intake and exhaust device which comprises an air intake and exhaust box body, an invisible air intake and exhaust cover, a driving shaft and at least one linkage arm, and the air intake and exhaust box body is provided with an internal space; the hidden air inlet and outlet cover opens an opening in one side of the air inlet and outlet box body through opening and closing. The driving shaft is arranged in the internal space, and one end of the driving shaft rotatably extends out of the intake and exhaust box body; one end of at least one linkage arm enables a movable column on the invisible air inlet and exhaust cover to move along a long hole through the long hole, and the other end of the linkage arm is rotatably connected to the driving shaft. The rotating device is connected with the driving shaft so that the driving shaft can rotate along the axis. Opening and closing of the invisible air intake and exhaust cover are achieved through rotation of the driving shaft, and the technical problem that in the prior art, a ship outer plate invisible pneumatic air intake and exhaust device meeting invisibility and corrosion resistance is lacked is solved.

The invention belongs to the technical field of ships, and discloses a hydroponic vegetable planting cabin for a ship and an ocean polar region ship, the hydroponic vegetable planting cabin for the ship comprises a cultivation system, a nutrient solution circulating system and an air conditioning system, the cultivation system comprises a cultivation pipeline for cultivating vegetables, the nutrient solution circulating system comprises a nutrient solution storage box, a circulating pipeline used for connecting the nutrient solution storage box with the cultivation pipeline and a pump used for driving the nutrient solution to flow, and the air conditioning system is used for controlling temperature and humidity. Vegetables are planted in a hydroponic mode, the requirement for fresh vegetables in long-period navigation is met, on one hand, the hydroponic vegetable planting cabin is arranged at the position close to the waterline of the ship body so that the hydroponic vegetable planting cabin can be kept in a stable state as much as possible, and on the other hand, the hydroponic vegetable planting cabin is arranged on the broadside of the ship body so that the waterline of the ship body can be kept stable. The porthole arranged on the broadside is used for ensuring the incidence of natural light, so that a stable and good cultivation environment with sufficient illumination is provided for the growth of vegetables.

An ammonia treatment system according to the present invention comprises: an absorption tower that has a casing, a gas introduction part that introduces an ammonia gas that includes ammonia into the casing, a water sprinkling part that sprinkles water from an upper part of the inside of the casing and thereby absorbs the ammonia and generates ammonia water, and a water discharging part that discharges the ammonia water from a lower part of the casing; an ammonia component removal part that is provided outside the absorption tower and removes the ammonia component of the ammonia water to generate treated water; an ammonia water introduction line that introduces the ammonia water discharged from the water discharging part to the ammonia component removal part; and a first treated water supply line that supplies the treated water generated by the ammonia component removal part to the water sprinkling part.

The present invention relates to an ammonia recovery / discharge system and a control method therefor. The ammonia recovery / discharge system of the present invention is designed for a ship using ammonia as fuel and comprises: an ammonia tank; an engine; a fuel supply unit; a fuel recovery unit; an air supply line; an air discharge line; and a working fluid circulation unit, wherein the working fluid circulation unit comprises an ejector that supplies high-pressure working fluid to circulate air or ammonia in the working fluid circulation unit.

The invention relates to an intelligent ship bathroom system based on artificial intelligence. The intelligent ship bathroom system comprises a bathroom cabin planning module based on whole ship layout and personnel compilation, a use management rule making module based on personnel physiological characteristics, a toilet state indication system module special for commanding personnel, an intelligent function configuration module in a bathroom cabin and a multifunctional design module of cabin materials. The invention relates to a small device and an interactive product module with science and technology and humanized care. Through scientific layout planning, intelligent use management, humanized facility configuration and function design, the problems existing in a traditional ship bathroom cabin are solved, a comfortable, convenient, safe, sanitary and energy-saving bathroom environment is provided for ship personnel, meanwhile, the sense of science and technology and humanized care are highlighted, and the overall quality of a ship is improved.

The invention relates to a shipborne weather radar integrated platform and an installation method, and belongs to the technical field of shipborne radars. A radar system is disassembled into a platform unit, a power cabinet unit and a display control terminal unit through a separated layout; wherein the platform unit adopts a heightened cylinder structure to support a ball cover and an internal phased array antenna, and is combined with a two-degree-of-freedom stable platform to compensate the shaking of a ship body in real time; the power cabinet sinks to a middle-layer deck cabin; the display control terminal is arranged in front of a forecastle deck central control room; in addition, aiming at a closed ball cover environment, an air conditioner internal unit is arranged in a direct blowing device in the cover, an external unit is moved to a lower deck, and accurate temperature and humidity control is realized by matching with a dehumidifier and double-path condensate water discharge. According to the invention, while the radar performance is satisfied, the light weight of the upper part, the system reliability and the maintenance convenience are realized.

The utility model relates to the technical field of seawater pipelines, and discloses a seawater pipeline anti-icing structure of a polar navigation ship, which comprises a seawater tank, a fixed frame is fixedly arranged on the opposite sides of the top and the bottom of an inner cavity of the seawater tank, and a rectangular groove is fixedly arranged on the other side of the inner cavity of the seawater tank close to the bottom. A pump body is installed in an inner cavity of the rectangular groove, the water inlet end of the pump body penetrates through the bottom of the inner cavity of the rectangular groove, a main mixing shaft fixed to the shaft end of a power output shaft of a driving motor can rotate under rotation of the power output shaft of the driving motor, and seawater entering an inner cavity of a fixing frame can be mixed under cooperative use of a plurality of main mixing blades; according to the device, seawater can be uniformly heated, a driving bevel gear can be rotated under the rotation of a main mixing shaft, an auxiliary mixing shaft can be rotated under the cooperative use of a driven bevel gear, a plurality of auxiliary mixing blades can be further rotated, crushed ice on the water surface in an inner cavity of a fixed frame can be stirred, and the melting efficiency is improved.

An ammonia abatement system includes: a gas flow line through which a purge gas containing ammonia and an inert gas flows; a dilution tank in which an absorbing liquid capable of absorbing the ammonia is stored, and that is capable of temporarily storing the purge gas that is supplied from the gas flow line; a sending line through which a gas in a gas phase in the dilution tank is capable of being sent to an outside of the dilution tank; an abatement device that is connected to the sending line and detoxifies the ammonia contained in the gas that is sent through the sending line; a flow rate adjustment valve that is provided in the sending line; and a control device that controls an opening and closing operation of the flow rate adjustment valve, in which the control device causes the flow rate adjustment valve to transition from a closed state to an open state when ammonia concentration of the gas phase in the dilution tank, in which the purge gas is temporarily stored, falls below a predetermined value.

The present invention discloses a high-efficiency and energy-saving HVAC system for marine engineering, comprising: an energy recovery unit, an air handling unit, a refrigeration and heating unit, a control system, and an environmental sensing unit; the energy recovery unit, the air handling unit, the refrigeration and heating unit, and the environmental sensing unit are respectively connected to the control system; the air handling unit is connected to an air intake pipe, one end of the energy recovery unit is connected to the exhaust gas or wastewater discharge pipe of the marine engineering facility, and the other end is connected to the air intake pipe, and the air outlet of the air handling unit is connected to the air intake of the refrigeration and heating unit through a pipe. Beneficial effects: energy saving efficiency is significantly improved; environmental adaptability and system reliability are enhanced; precise zoning environmental regulation and optimized air handling; intelligent control and convenient remote operation; reduced maintenance costs and improved system safety.

The utility model provides an air collection ventilation tail end of a marine air pipe and a ship, and the structure of the air collection ventilation tail end of the marine air pipe comprises a tail end main body which is of a tubular structure; the connecting part is arranged at the top end of the tail end main body, and the tail end main body is installed on the air pipe through the connecting part; and the lamp body is arranged in the tail end main body, and a gap is formed between the lamp body and the inner wall of the tail end main body. According to the air collecting and ventilating tail end of the marine air pipe and the ship, the problem of how to arrange a ventilating system and an illuminating system in a crowded catering area space can be solved.

The present invention provides an arrangement structure of a fuel tank for cabins of a ship and electric propulsion, comprising: an electric propulsion system (110) which is arranged in an engine room (111) and provides power produced by a gas turbine (112) as a propulsion force to an electric propulsion motor; a first liquefied gas storage tank (120) which is arranged in a cargo section (A) and supplies a first gas fuel to the gas turbine (112); and a second liquefied gas storage tank (130) which is arranged in a bow section (b) and supplies a second gas fuel to the gas turbine (112), to thereby secure safety and an extra space in the engine room through the arrangement of the second liquefied gas storage tank (130) in the bow.

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 control method of an LNG (liquefied natural gas) ship isolation void modularized heating structure, which comprises a module frame, a main heater, a standby heater, an auxiliary heater and a heating coil, and is characterized in that the module frame is arranged in a motor chamber which is originally used for placing a compressor motor; the main heater, the standby heater and the auxiliary heater are all fixed on the module frame, the heating coil is fixed in a cabin of the isolation void cabin, and a plurality of temperature sensors are fixed on the front cabin wall and the rear cabin wall of the isolation void cabin. The isolated void modular heating structure is arranged in the compressor motor chamber, the heating coil is arranged in the internal space of the isolated void, and the heating medium conveying pipeline of the isolated void modular heating structure is connected with the heating coil, so that gas in the isolated void can be heated; condensate water is prevented from being formed in the isolation void cabin, material performance reduction caused by low temperature is avoided, and therefore the integrity of the ship structure is guaranteed, and ship navigation safety is guaranteed.

The invention discloses a ventilation system for a fuel oil and methanol dual-purpose cabin of a dual-fuel bulk carrier. The ventilation system of the fuel oil and methanol dual-purpose cabin of the dual-fuel bulk carrier comprises a dual-purpose cabin installed in a void cabin, at least one fuel oil ventilation pipe is arranged at the top of the dual-purpose cabin, an air pipe head is arranged at the top, penetrating out of the void cabin and a deck, of the fuel oil ventilation pipe, a first on-off piece is arranged on the fuel oil ventilation pipe and used for controlling on-off of the fuel oil ventilation pipe, and a second on-off piece is arranged on the deck and used for controlling on-off of the fuel oil ventilation pipe. The fuel vent pipe is communicated with an intercommunication vent pipe between the first on-off piece and the dual-purpose cabin, the intercommunication vent pipe is communicated with a methanol vent branch pipe, the methanol vent branch pipe is communicated with a methanol vent header pipe, the methanol vent header pipe is laid to a vent mast, and a pressure vacuum valve is arranged on the methanol vent branch pipe; and a second on-off piece is arranged on the intercommunication vent pipe between the methanol vent branch pipe and the fuel vent pipe, and is used for controlling the on-off of the intercommunication vent pipe. The problem that the prior art cannot be applied to the dual-purpose cabin is solved.

The utility model discloses a composite cabin ventilation system meeting dynamic positioning redundancy requirements, which comprises an exhaust shutter, an air inlet shutter and a fan which are positioned in an upper cabin, a structural air duct positioned in a middle cabin and a diesel generator set positioned in a lower cabin, and the air inlet shutter, the fan, the structural air duct and a cavity of the lower cabin are sequentially communicated. The cavity of the lower-layer cabin is communicated to an exhaust shutter through a chimney; and an air brake for controlling the ventilation quantity is arranged between the fan and the structural air duct. According to the utility model, a water cooling mode is utilized to completely replace the heat dissipation air volume of a main part during the design of a conventional cabin ventilation system, and the discharge capacity of a ventilation fan and the size of an air duct are reduced. The internal circulation cooling jet fan does not need to be started, normal operation of the ship can be guaranteed through the frequency conversion fans with the small number and power, and energy conservation and emission reduction are achieved. All the frequency conversion fans and the internal circulation cooling jet fans can work at the same time, the use requirements of tropical areas under extremely hot working conditions are met, and the working condition adaptability of ships is improved.

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 present invention relates to the technical field of ship ventilators, and discloses an improved structure of a ship ventilator, wherein the guide rail assembly comprises a sliding column, the top of the sliding column is fixedly connected to a hollow shell, the outer wall of the sliding column is slidably connected to a sliding block 1, the outer wall of the sliding block 1 is fixedly connected to a connecting frame 2, the end of the connecting frame 2 away from the sliding block 1 is fixedly connected to a circular plate 1, the side of the sliding column away from the sliding block 1 is slidably connected to the sliding block 2, the outer wall of the sliding block 2 is fixedly connected to a connecting plate 1, the end of the connecting plate 1 away from the sliding block 2 is fixedly connected to a fixing plate, and the bottom of the fixing plate is fixedly connected to an annular plate by setting the guide rail assembly to prevent the exhaust port from being blocked due to the displacement of the connection caused by the strong wind and waves at sea.

The invention belongs to the technical field of ships, and discloses an oil tank ventilation system and a ship. The oil tank ventilation system comprises first ventilation branch pipes, a first ventilation main pipe, an overflow box and a second ventilation main pipe, all the oil tanks are connected with the first ventilation branch pipes, and the first ventilation branch pipes of all the oil tanks are arranged in parallel and connected with the first ventilation main pipe. The first ventilation main pipe is connected with the overflow box through the discharge pipe, the installation position of the overflow box is lower than that of the first ventilation main pipe, the overflow box is connected with the second ventilation main pipe, the upper end of the second ventilation main pipe extends to the position above the ship main deck, and the ventilation cap is arranged at the upper end of the second ventilation main pipe. Design efficiency is improved, interference risks are reduced, materials such as pipes and ventilation caps are effectively saved, and effectiveness and safety of a ventilation system are improved.

The marine mushroom-shaped ventilator capable of being automatically opened and closed comprises an air duct, an air cap, a screw rod and a fixing frame, and the lower end of the screw rod is arranged on the fixing frame in a penetrating mode; an upper cover plate is arranged above the hood, and a ventilation opening part is arranged at the top of the hood; a weather tight hopper is arranged between the top of the air duct and the ventilation opening part of the air cap; a rainwater receiving opening is formed in the top of the weather tight hopper; a spring is arranged between the weather tight hopper and the fixing frame; the screw rod penetrates through the upper cover plate, the weather tight hopper and the spring; and a water escape valve is arranged at the bottom of the hood. The device is convenient to use, and can automatically close the air funnel without the need of a sailor to reach the air funnel position for operation under the conditions of severe sea conditions and a large amount of water, seawater cannot enter a cabin, and the safety of the sailor and a ship is guaranteed.

A ship equipped with a gas turbine and a waste heat recovery-based electric propulsion system, according to an embodiment of the present invention, enhances the efficiency of a gas turbine (142) by including a stern section (C) comprising: the gas turbine (142), disposed in an engine room (141), that generates electric power by combustion of first fuel supplied from a second fuel tank (143) or second fuel supplied from cargo tanks (TK1 to TK4) and supplies the electric power to an electric propulsion motor; the second fuel tank (143), which is disposed in an upper side free space of the engine room (141), has an upper end exposed to an upper deck (UD), and supplies the first fuel to the gas turbine (142); and a waste heat recovery system (150) that converts waste heat from exhaust gas of the gas turbine (142) into electric power and then supplies the electric power to the electric propulsion motor.

The present invention relates to an inorganic aerogel thermal insulation and sound insulation composite air duct and its application. The composite air duct is composed of a plurality of continuous rectangular thermal insulation and sound insulation air duct units assembled in sequence; the pipe wall of the rectangular thermal insulation and sound insulation air duct unit is a layered structure, which is an inner layer, an aerogel thermal insulation layer, an aerogel sound insulation layer and an outer protective layer from the inside to the outside; the aerogel thermal insulation layer and the aerogel sound insulation layer are both composed of an aerogel matrix and a fiber reinforcement; in the aerogel thermal insulation layer, the aerogel matrix accounts for 20-40wt% of the total mass, and the average fiber diameter of the fiber reinforcement is 1-5.5μm; in the aerogel sound insulation layer, the aerogel matrix accounts for 10-25wt% of the total mass, and the average fiber diameter of the fiber reinforcement is 1-8.5μm. Compared with the prior art, the inorganic aerogel thermal insulation and sound insulation composite air duct of the present invention can reduce and lower the resonance and noise caused by the operation of the air duct while realizing the functions of heat insulation and cold preservation.

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 discloses a multi-mode emergency ventilation system for dangerous areas of ships and maritime work platforms, which comprises an electric power system, a fan ventilation module and an intelligent control unit provided with an emergency control system in advance, the compressed air driving module, the mechanical spring energy storage driving module, the natural wind power utilization module and the hot pressure difference ventilation module do not need to be powered by an electric power system and are electrically connected with the intelligent control unit, and the intelligent control unit monitors the operation conditions of the electric power system and the fan ventilation module and the temperature, gas and air pressure conditions in a dangerous area; when the power system or the fan ventilation module breaks down, the intelligent control unit switches the emergency control system and controls the four non-power control modules to be started and stopped for non-power-driven physical ventilation. Compressed air driving, mechanical spring energy storage driving, natural wind power utilization and a hot pressure difference effect are combined, a proper mode is automatically switched under the emergency condition through multiple power-free ventilation modes, and air circulation in a cabin is continuously kept.

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.

A vessel, said vessel comprising one or more lower decks (10, 20, 30, 40) where at least a part of the one or more lower decks (10, 20, 30, 40) is provided with a support surface (87), which support surface (81) comprises through-going ventilation openings allowing ventilation of the vessel, the vessel comprising at least one ventilation system, which from one hull-side of the decks (10, 20, 30, 40) has ventilation air supply openings (65) at the support surface (81) at each deck (10, 20, 30, 40), the ventilation system being configured to supply cooled air to the ventilation air supply openings (65), and the vessel further comprising a sensing device (91) configured to sense one or more of heat and gas, a control unit (92) associated with the sensing device and the ventilation system and comprising a signal processing device (93) configured to receive a signal from the sensing device (91) and to process the received signal to determine whether a predetermined threshold related to the sensed heat and gas is reached or overstepped, the control unit (92) being configured to trigger the ventilation system when it is determined that the predetermined threshold is reached or overstepped and the ventilation system being configured to supply gas to the ventilation air supply openings (65), when triggered by the control unit.

The invention discloses a self-adaptive deck waterproof ventilation head which comprises an outer shell, an inner barrel, a guide mechanism, a water collecting barrel and a top cover. The lower end of the outer shell is fixed on a ship deck; the upper portion of the inner barrel is located in the outer shell, and the lower portion of the inner barrel extends into a ship cabin. The lower end of the guide mechanism is fixed to the inner wall of the inner barrel, and the upper portion of the guide mechanism is connected with the water collecting barrel which vertically moves along the guide mechanism. An airflow channel is formed between the bottom of the water collecting cylinder and the upper port of the inner cylinder body; a top cover is arranged above the water collecting barrel, and an overflowing hole communicated with the water collecting barrel is formed in the top cover. The invention further discloses a using method of the self-adaptive deck waterproof ventilation head. The ventilation system has the beneficial effects that the water collecting barrel vertically moving along the guide mechanism is designed, under the severe sea condition, the water collecting barrel moves downwards to make contact with the upper end of the inner barrel body after collecting water, the airflow channel is closed, water is prevented from entering the cabin, and the waterproof performance of the whole ventilation system is improved.