1806results 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 the technical field of ship design and construction, and discloses a positive pressure protection device, a ship and a positive pressure protection method.The positive pressure protection device comprises a shell, a main draught fan, a standby draught fan, a first air brake, a second air brake, a pressure difference detector and a control system, the shell can communicate with a cabin, and the air supply end of the main draught fan and the air supply end of the standby draught fan both communicate with the shell; the first air brake is arranged between the air supply end of the main fan and the shell and used for controlling communication or closing between the main fan and the shell. The second air brake is arranged between the air supply end of the standby fan and the shell and used for controlling communication or closing between the standby fan and the shell. The pressure difference detector is used for detecting the air pressure difference inside and outside the cabin; and the control system is in communication connection with the main fan, the standby fan, the first air brake, the second air brake and the pressure difference detector. When the main fan breaks down, the control system can enable the positive pressure protection device to be immediately and automatically switched to the standby fan to supply air so as to maintain the positive pressure in the cabin.

The invention relates to a marine weather-tight shutter device and a control method. A shutter with an electric control function is installed in the outward direction of a ventilation and heat dissipation opening of a cabin, a shutter with a water leakage detection function is installed in the inward direction of the ventilation and heat dissipation opening of the cabin, and water pressure reducing dustproof cotton is placed between the shutter with the water leakage detection function and the shutter with the electric control function to form the weather-tight shutter device. The water leakage detection module is connected with a water leakage detection cable in the shutter with the water leakage detection function and a PLC module of an electric control system, and the PLC module is connected with a temperature measuring instrument in a cabin and is connected with the shutter with the electric control function through a sensor and an actuator. According to the weather-tight louver device for the ship and the control method, besides conventional rainproof and heat dissipation functions, the functions of dust prevention, louver opening air volume control, water drainage, water leakage detection alarm, temperature detection, detachable maintenance and the like are further achieved, the air volume of a cabin louver opening is effectively increased, and risks caused by water inflow and too high temperature of a cabin are prevented.

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 relates to the field of ship transportation, and discloses a device for liquefying boil-off gas of an LNG cabin and a liquid ammonia cabin through ship liquid hydrogen cold energy. The device comprises a cold box heat exchanger, wherein a liquid hydrogen cabin and an LNG tank / liquid ammonia cabin are both communicated with the cold box heat exchanger; a liquid hydrogen boil-off gas circulation passage is arranged between the cold box heat exchanger and the liquid hydrogen cabin, and liquid hydrogen boil-off gas flows into the cold box heat exchanger from the liquid hydrogen cabin through the passage; an LNG / liquid ammonia boil-off gas circulation passage is arranged between the cold box heat exchanger and the LNG tank / liquid ammonia cabin, and LNG / liquid ammonia boil-off gas flows into the cold box heat exchanger from the LNG tank / liquid ammonia cabin through the passage; an LNG / liquid ammonia circulation channel is further arranged between the cold box heat exchanger and the LNG tank / liquid ammonia cabin, and LNG / liquid ammonia flows into the cold box heat exchanger from the LNG tank / liquid ammonia cabin through the channel. According to the device, effective utilization of the cold energy of the hydrogen evaporation gas is achieved, and the energy consumption in the LNG or liquid ammonia evaporation gas cooling and liquefying process is further reduced.

The ship residential area cabin ventilation system comprises a central air conditioner and a main exhaust pipeline, a plurality of cabins are divided into a clean area, a potential pollution area and a negative pressure area, and a fresh air outlet of the central air conditioner communicates with the clean area, the potential pollution area and the negative pressure area through air supply pipelines connected in parallel. An air return port of the central air conditioner is communicated with the three areas through an air return pipeline, an air detection device and a first electric air brake are sequentially arranged on the air return pipeline in the air flowing direction, an inlet of the main exhaust pipeline is communicated with the air return pipeline, and a second electric air brake is arranged on the exhaust pipeline; the potential pollution area and the negative pressure area communicate with the main exhaust pipeline through exhaust branch pipes correspondingly, third electric air brakes are arranged on the exhaust branch pipes, and the first electric air brake, the second electric air brake, the third electric air brake and the air detection system are in linkage connection through a control system. The ship residential area cabin ventilation system can carry out comprehensive prevention and control, and air in a prevention and control area is prevented from entering a clean area.

A combined ventilation mast suitable for an ammonia fuel powered ship is composed of a main ventilation mast and two sets of auxiliary ventilation masts, the two sets of auxiliary ventilation masts are the first auxiliary ventilation mast set and the second auxiliary ventilation mast set respectively, the first auxiliary ventilation mast set is composed of a plurality of first auxiliary ventilation masts, and the second auxiliary ventilation mast set is composed of a plurality of second auxiliary ventilation masts. The first auxiliary ventilation mast group is composed of a plurality of first auxiliary ventilation masts, the second auxiliary ventilation mast group is composed of a plurality of second auxiliary ventilation masts, the number of the first auxiliary ventilation masts is the same as that of the second auxiliary ventilation masts, the first auxiliary ventilation masts and the second auxiliary ventilation masts are alternately arranged in the circumferential direction of the main ventilation mast, the heights of the first auxiliary ventilation masts are sequentially reduced, and the heights of the second auxiliary ventilation masts are sequentially reduced. And in the first auxiliary ventilation mast group, the first auxiliary ventilation mast with the lowest height is higher than the second auxiliary ventilation mast with the highest height in the second auxiliary ventilation mast group. The staggered lowering mode helps all the auxiliary air outlets to be staggered to the maximum degree in height and angle, so that secondary diffusion of toxic areas caused by pressure difference among all the ventilation pipelines when ammonia gas leaks is avoided.

The invention provides an ice region ship ventilation system and a ship, and relates to the field of ship manufacturing, and the ice region ship ventilation system is characterized in that a first heater is mounted on an exhaust shutter; a second heater is mounted on the air inlet shutter; a steam heater is mounted in a fan chamber of the ship body; an outdoor temperature sensor is installed outside the ship body and used for detecting the outdoor temperature. An air duct temperature sensor is arranged on an air duct for blowing air in the fan chamber and is used for detecting the temperature of the air duct; the controller is connected with the first heater, the second heater and the outdoor temperature sensor; the cabin fan is arranged in the fan chamber, is controlled by the controller and is used for blowing air; the steam heater is connected with the air duct temperature sensor. The temperature requirement of a sailing cabin in an ice region can be met, the anti-icing, demisting and heating effects are remarkable, the system design is relatively simple, and equipment is convenient to arrange and easy to repair and maintain.

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 utility model relates to the technical field of ships, in particular to a ship ventilator with a silencing structure, which is characterized in that an adjusting threaded rod is screwed and inserted in a top cap through a bearing, a hand wheel is fixedly arranged at the upper end of the adjusting threaded rod, an adjusting plate is movably arranged in the top cap, and an inner cylinder is fixedly arranged at the lower part of the adjusting plate; a resistive silencer is fixedly arranged at the position, below the inner cylinder, in the cylinder body, a first fixing block is fixedly arranged on the right side of the upper portion of the top cap, a roller is rotationally connected to the first fixing block through a shaft and a bearing, a tape is wound around the roller, and a second fixing block is fixedly arranged on the right side of the inner top wall of the top cap. The winding shaft is rotationally connected to the second fixing block through a shaft and a bearing, coil springs are fixedly arranged in the front side wall and the rear side wall of the second fixing block correspondingly, noise can be reduced in the ventilation process, the ventilation quantity can be adjusted according to requirements, and indication of the current adjustment quantity is provided for workers.

The utility model belongs to the field of refrigeration equipment, and provides refrigeration equipment convenient to disassemble and assemble, which comprises a mounting seat, a refrigeration equipment body, a mounting pipe, a filter screen, a clamping mechanism for fixing the refrigeration equipment body, and an inserting mechanism for quickly assembling and disassembling the filter screen, the clamping mechanism comprises a first clamping piece for clamping and fixing in the length direction of the refrigeration equipment body. According to the device, when the motor is started to rotate, the refrigeration equipment body is rapidly clamped and fixed, the working efficiency is improved, then the refrigeration equipment body can be rapidly installed, and when the motor is started to rotate reversely, the refrigeration equipment body can be rapidly disassembled; the problem that in the prior art, most refrigeration equipment bodies are directly fixed to the mounting base through bolts, and consequently the positions of the refrigeration equipment bodies are inconvenient to disassemble is solved.

A power supply and cooling system for a floating structure having a tank, includes a supply circuit having at least one compression device, the supply circuit being configured to supply gas to a gas-consuming device, and a cooling circuit having a heat exchanger configured to participate in managing the internal pressure of the tank, the cooling circuit being connected to the supply circuit on either side of the compression device. The compression device includes two compression stages, and the power supply and cooling system includes a control device configured to connect the compression stages in series or in parallel.

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 provides a passenger ship air-conditioning system. The passenger ship air-conditioning system comprises a water system which comprises a refrigeration module, a preheating module, a reheating module, a first coil pipe and a second coil pipe; a first water outlet pipe is connected between the water outlet of the refrigeration module and the water inlet of the first coil pipe, and a first water return pipe is connected between the water inlet of the refrigeration module and the water outlet of the first coil pipe; a water outlet of the preheating module is connected to the first water outlet pipe through a pipeline, and a water inlet of the preheating module is connected to the first water return pipe through a pipeline; a second water outlet pipe is connected between the water outlet of the reheating module and the water inlet of the second coil pipe, and a second water return pipe is connected between the water inlet of the reheating module and the water outlet of the second coil pipe; the air system comprises an air duct, and the first coil pipe and the second coil pipe are sequentially arranged in the air duct in the air supply direction. A primary reheating cycle is added to the water system, the temperature of preheated water in winter is reduced, and the water system is used for meeting the requirements of inner cabins and some technical cabins which still need refrigeration even in winter.

The invention discloses a thermal management system and method for a hybrid power ship, and relates to the technical field of ship power. The seawater heat exchanger is respectively connected with a motor system cooling loop, a battery heat management loop, an engine heat management loop and a seawater heat pump loop; the seawater heat exchanger is used for performing heat exchange on the heat absorption cooling liquid and seawater; the motor system cooling loop is configured to cool the motor system and provide heat for the battery thermal management system to raise the temperature; the battery heat management loop is configured to perform heat exchange on the battery so as to enable the battery to be within a preset temperature range; the engine heat management loop is configured to conduct heat exchange on the engine so that the engine can be within the preset temperature range, and heat is provided for the battery and the air conditioner warm air core body; the seawater heat pump loop is configured to provide heat for temperature rise of the battery heat management loop and the engine heat management loop; each part can be accurately controlled to operate at the optimal temperature; and oil consumption and emission are reduced.

The invention relates to the related technical field of marine air conditioners, and discloses a marine assembled air conditioning device which comprises a ventilation output mechanism, a combined outer rack and an optimized compressor, and a middle output pump set and a condenser shell are fixedly mounted on the top wall of the combined outer rack; a butt joint supporting platform is arranged at the top of the middle output pump set, and the optimized compressor is fixedly installed on the top of the middle output pump set. The ventilation output mechanism comprises a main machine shell. According to the marine assembled air conditioner device, the convenient overhauling mechanism is arranged at the bottom of the main machine shell, and an overhauling opening in an overhauling cover plate of the convenient overhauling mechanism and an overhauling sealing plate on the lower side are arranged; the maintenance sealing plate does not need to be placed in a position finding mode after being disassembled, the reassembling efficiency after maintenance is improved, and therefore the maintenance efficiency is improved.

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 invention provides an anti-freezing ventilation system and method for a ship in an ice region, and the system comprises a cabin air inlet duct which is sequentially provided with a first air inlet shutter, a cabin air feeder, a first air brake, a first temperature sensor and a cabin air supply outlet in the airflow direction; the mixed air supply duct is sequentially provided with a second air inlet shutter, a mixed air feeder and a first remote control air brake in the airflow direction; the generator smoke exhaust pipe main pipe is provided with a first waste gas heat exchanger; the mixed air supply duct is in heat exchange connection with the first waste gas heat exchanger, and an outlet of the mixed air supply duct communicates with the cabin air inlet duct between the first temperature sensor and the first air brake. Exhaust gas on the ship is used for heating ventilation of rooms such as the cabin chamber and the equipment chamber, and on the premise that the requirement for the ventilation temperature of the cabin chamber and the equipment chamber of ice navigation is met, ship electric power and fuel are saved.

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.

A heating panel (1) for the floor of a ship comprising - a metal base (3); - a metal cover (2); - a polymeric support (4), arranged between the base (3) and the cover (2); - a heating element (5), adapted to generate heat when it is electrically powered, arranged between the polymeric support (4) and the cover (2); wherein the base (3) and the cover (2) form a hermetically sealed casing (10), in particular hermetically sealed by means of sealing material; wherein said polymeric support (4) and said heating element (5) are arranged in said hermetically sealed casing (10); wherein the base (3) is provided with a peripheral side wall (31) which extends transversely from a flat portion (30) of the base (3); the heating panel (1) comprises at least one temperature probe (6a, 6b), or at least one tube adapted to accommodate a temperature probe, which crosses a respective first opening (36a, 36b) of said peripheral side wall (31); said respective first opening (36a, 36b) being completely obstructed, in particular partly by the respective temperature probe (6a, 6b) or respective tube and partly by sealing material.

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 invention provides a control method of an air conditioning unit and the air conditioning unit. The air conditioning unit is provided with a plurality of air supply outlets, a cabin is divided into a plurality of areas from top to bottom, and each area is at least communicated with one air supply outlet. Adjusting the target temperature or the target humidity of the cabin in the middle area, and performing compensation by taking the target temperature or the target humidity of the middle area as a reference to set the target temperature or the target humidity of other areas; and controlling the air valve opening degree of the air supply outlet of each area to enable the detected temperature of each area to be close to or equal to the target temperature. According to the invention, the cabin is partitioned, and air supply control is carried out on each region, so that the temperature control in the cabin is more accurate. And the temperature and humidity control efficiency of the unit is improved by correcting the temperature of the air outlet side of the condenser and the humidity of the air outlet side of the evaporator.

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 utility model relates to the technical field of air drying devices, and discloses a cabin air drying device which comprises a device body, a cavity is formed in the device body, an air inlet is formed in one side of the device body, an air outlet is formed in the other side of the device body, and the air inlet and the air outlet are both communicated with the cavity. A fixing shaft is installed on the side, close to the air inlet, of the device body, a rotating wheel is rotationally installed on the fixing shaft, four filtering blocks are evenly arranged on the rotating wheel in the circumferential direction, and through the arranged rotating wheel, dust in air entering the cavity can be filtered after the filtering blocks on the rotating wheel are aligned with the air inlet by rotating the rotating wheel; and after filth blockage is generated after the filter blocks are used for a certain time, the next filter block can be moved and aligned with the air inlet by rotating the rotating wheel, so that the filter blocks can be quickly replaced, the device can enter a working state more quickly, and the working efficiency of the device is improved.