1025results about "Vessel ventillation/heating/cooling" patented technology

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.

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.

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 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 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 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 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.

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.

An ammonia fuel ship according to an embodiment comprises: a main engine driven by ammonia fuel; and a cover structure capable of switching the upper section of the main engine to be in a covered state or in an uncovered state.

The invention relates to the technical field of ship cooling systems, and provides a multi-mode natural circulation cooling system, comprising: a heat exchange device comprising a heat exchange pipeline and a separation water tank, the heat exchange pipeline comprising a first pipeline, a second pipeline and a third pipeline connected in sequence; the circulating reinforcing part comprises a non-condensable gas gathering box, a communicating pipeline and a control driving part, the non-condensable gas gathering box is communicated with the separation water tank, one end of the communicating pipeline is communicated with the non-condensable gas gathering box, and the other end of the communicating pipeline is communicated with the first pipeline or the second pipeline. Wherein the non-condensable gas gathering box is filled with non-condensable gas, the density of the non-condensable gas is smaller than that of the steam, and the control driving part is used for guiding the non-condensable gas into the first pipeline or the second pipeline under preset conditions. The multi-mode natural circulation cooling system aims at solving the problem that in the prior art, when the heat exchange pressure is large, the natural circulation capacity of a ship cooling system is insufficient.

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 invention relates to the technical field of ship air lubrication systems, in particular to a ventilation system and method serving a ship air lubrication system. The system comprises a ventilation system located between an upper deck and a lower deck of a ship, and comprises the following components: a mechanical air supply device used for heat dissipation of an ALS air compressor and ensuring that the ALS air compressor sucks air; the mechanical exhaust device is used for exhausting hot air of the ALS air compressor as soon as possible; and the air quantity balancing device is used for balancing air supply and air exhaust of the ship so as to maintain micro-positive pressure of the ship. The air supply mode and the air exhaust mode are flexibly switched according to seasons, full-speed operation in summer ensures sufficient air supply amount to remove heat, and air is exhausted in time to maintain air circulation; the energy consumption is reduced and the heat dissipation requirement of the equipment is ensured by speed-reducing operation in winter; an air supply outlet is provided with enhanced cooling, a balance ventilator is used for adjusting and maintaining micro-positive pressure, and stable operation of the ALS air compressor is guaranteed in all directions.

To avoid a situation where a fuel cell ship is stopped on the sea during navigation even when a failure of fuel cells occurs or the fuel cell reaches a device life during navigation of the fuel cell ship.SOLUTION: A fuel cell ship includes: a propulsion device for generating a propulsion force in a hull by power; a power supply part for supplying the power to the propulsion device; and a degradation rate control part for adjusting a degradation rate. The power supply part has a plurality of fuel cells for generating power by an electrochemical reaction of a fuel, and at least one storage cell.SELECTED DRAWING: Figure 2

The utility model relates to an installation structure of a ship cabin air pipe head. The installation structure comprises an air pipe, an annular toggle plate and a supporting toggle plate assembly. The air pipe laterally extends out of the chord side, upwards extends and exceeds the height of the deck A, and the tail end is connected with the air pipe cap; the annular toggle plate is vertically fixed outside the chord side and is provided with an annular part for positioning the air pipe; the supporting toggle plate assembly comprises a pair of lower toggle plates, a pair of upper toggle plates and a pair of intra-cabin toggle plates. The upper end of the lower toggle plate is fixed with the lower part of the annular toggle plate, the outer end is fixed with the air pipe, and the inner end is fixed with the chord side plate; the outer end of the upper toggle plate is fixed with the air pipe, and the inner end of the upper toggle plate is fixed with the chord side plate; the lower end of the in-cabin toggle plate is fixed with the deck A, and the outer end is fixed with the chord side plate. The air pipe head solves the problem that air pipe heads cannot be arranged on flight decks, helicopter decks and the like.

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.

To provide an engine system capable of responding to fuel gas containing a toxic substance leaked from an engine.SOLUTION: An engine system 1 having an engine 2 driven by fuel containing a toxic substance includes: a case 7 that surrounds the engine 2; and a fuel detection section 8 disposed inside or outside the case 7 to detect fuel leaked to the outside of the engine 2. When a vapor specific gravity of the fuel is larger than a predetermined threshold value, the fuel is detected by using the fuel detection section 8 disposed in the lower part of the case 7, and when the vapor specific gravity of the fuel is smaller than the predetermined threshold value, the fuel is detected by using the fuel detection section 8 disposed in the upper part of the case 7. The fuel containing the toxic substance is either of ammonia or methanol.SELECTED DRAWING: Figure 1

The invention relates to the technical field of air distributors for ships, in particular to a noise-reduction mute air distributor for a ship, and aims to solve the problem that the noise reduction effect is not ideal due to noise generated by collision and friction between airflow and meshes in the prior art. Air flow is introduced into the filtering holes formed in the moisture absorption plate through the splitter plate, the contact area between the splitter plate and the air flow is small due to the fact that the splitter plate is triangular, and polytetrafluoroethylene is sprayed to the surface of the splitter plate, so that the friction coefficient is reduced, and noise is reduced; the moisture absorption plate can absorb moisture existing in the airflow, the activated carbon filter screen can further remove impurities in the air, finally, when the airflow enters the air conveying pipe, the sponge can thoroughly remove and absorb the residual moisture and the impurities in the airflow, due to the soft characteristic of the sponge, noise can be reduced again, and the noise is reduced. The effect of reducing noise generated when the air distributor body works is achieved.

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 cargo hold side bottom ballast tank vent pipe protection cover which comprises a pipe protection cover body, the pipe protection cover body is composed of a plurality of single protection cover assemblies, and each single protection cover assembly comprises an angle steel frame assembly, a first square steel assembly, a second square steel assembly and a third square steel assembly. The angle steel frame assembly is fixedly connected with the first square steel assembly, the second square steel assembly and the third square steel assembly in a welded mode, and every two adjacent single protection cover assemblies are fixedly connected through a first locking screw and a second locking screw. According to the technical scheme, the pipe protection cover body is mainly formed by welding multiple sets of angle steel and multiple sets of square steel, conventional steel pipe welding and fixing are replaced, manufacturing is easy and convenient, multiple sets of single protection cover assemblies can be prefabricated, the field installation efficiency of the pipe protection cover body is improved, and the shape of the pipe protection cover body is convenient to adjust; the angle steel is manufactured by rotating 45 degrees, bulk cargoes in the cabin are prevented from being accumulated on the angle steel face, and the cargo accumulation prevention effect is achieved.