546 results about "Marine equipment" patented technology

A super hydrophobic coating composition that is a highly durable super hydrophobic transparent coating for glass, metal, and plastic, and automobile painted surfaces that is manually dispensable and may be easily applied to many substrates is provided. Moreover, the inventive super hydrophobic coating is user friendly as coating takes place at room temperature, and can be applied by a normal hand spray method. Embodiments of the coating dry within 30 minutes, and generate a super hydrophobic effect for ready use. The coating is useful to repel water droplets, dew drops, and dust particles in various applications such as solar panels, wind turbines surfaces, house hold components, metal coated furniture, marine equipment parts, marine sports equipment like speed boat screens, automobile wind shields, automobile plastic components, auto bodies and aerospace applications.

A marine device has a floating buoy containing electronics, a submerged payload containing electrical devices and electronics, a power source and a mooring line. At least a part of the power source is submerged and electrically connected to at least one of the submerged payload and the floating buoy, and the mooring line extends between the buoy and at least one of the power source submerged part, the submerged payload and a submerged anchor having a mass allowing it to stay under the water surface.

The invention discloses a marine anticorrosive coating, comprising the following components in parts by weight: 100 parts of water-based epoxy resin emulsion, 5-16 parts of waterborne polyurethane, 1-2.5 parts of modified asphalt, 5-10 parts of a waterborne epoxy curing agent, 10-30 parts of modified nano titanium dioxide, 5-16 parts of modified carbon nanotubes, 5-15 parts of red iron oxide, 3-5 parts of zinc powder, 2-15 parts of fiber fluff, 0.9-2.5 parts of chitosan, 3-8 parts of a coalescing agent, 0.5-1.3 parts of a defoaming agent, 0.3-1.5 parts of a wetting agent, 0.6-1.5 parts of a dispersing agent, 0.5-1.6 parts of a flatting agent, 0.2-0.8 part of a thickener and 5-15 parts of water. The marine anticorrosive coating disclosed by the invention is strong in anti-corrosion property, good in impact resistance, easy to construct, and long in service life when being applied to marine equipment.

The invention relates to a lower alloy steel laser-electric arc hybrid welding method in the technical field of metallurgy, machinery, ships, automobiles, pipelines, petrochemical industry, marine equipment, pressure vessels, war industry and the like. In order to solve the problems existing in a traditional welding method, on the basis of the effect law of laser-electric arc coupling characteristics and laser-electric arc hybrid welding parameters, the welding parameters and the groove sizes of all welding joints of multilayer welding are optimized with the orthogonal design test method, and the researched and developed lower alloy steel laser-electric arc hybrid welding method has the advantages of being small in heat input amount, large in fusion depth, small in deformation and high in welding speed, capable of reducing the area of the welding joints, the width of the heat affected zone and the exhaust amount of harmful gas and smoke and favorable for improving welding quality and welding efficiency, lowering production cost, improving the quality of products and relieving environmental pollution. The method includes the processing steps that welding grooves are machined, the optimized welding parameters are adopted for all the welding joints of the multilayer welding, and lower alloy steel laser-electric arc hybrid welding is performed.

The invention belongs to the technical field of marine equipment, and particularly relates to a marine splash environment simulation test device, wherein stringed testing cable holes are arranged in the upper part of one side surface of the box-structured test box, a frame-structured drive pull rod is arranged on the other side, a splash plate angle adjusting rod is arranged at the lower part, and a splash plate is formed at the inner end of the splash plate angle adjusting rod; sensors and water inlets are arranged on the side surface of a liquid area from top to bottom; a gas exhaust opening, a ventilating and moisture exhausting device, an infrared heating lamp and a box temperature sensor are fixedly and sequentially arranged on the top side surface of the test box body from right to left; and a ultraviolet lamp, an air blower, a nozzle, a water spray pump, a liquid level controller, a dissolved oxygen sensor and a water drain opening are arranged on the opposite side of the test box corresponding to the side surface provided with the drive pull rod. The marine splash environment simulation test device has simple structure and higher automation degree, is convenient to operate, needs no staff attendance, and can simulate marine splash environment in a laboratory, so as to analyze and evaluate the corrosion and aging of the material.

The invention discloses a mirror finished stainless steel bearing and a process technology thereof, which comprise molding of an inner ring and an outer ring of a bar stock, turning operation, heat treatment, plane centerless grinding, coarsely grinding the channels of the inner and the outer rings, heat treatment, finely grinding the channels of the inner and the outer rings, heat treatment, grinding the channels of the inner and the outer rings, assembly and pressing fit a dust cap. The mirror finished stainless steel bearing and the process technology thereof are characterized in that: 9Cr18 stainless steel is adopted as the bar stock; liquid casting passivation is carried out before fine grinding of the channels of the inner and the outer rings; uniform burnishing treatment with a waxing machine is carried out to the inner ring surface, the two end surfaces and the two chamfers of the inner ring and the outer ring surface, the two end surfaces and the two chamfers of the outer ring after grinding the channels of the inner and the outer rings; the dust cap and a retainer adopt material of stainless steel 304, coated with a vacuum ion coating and colored into golden. The mirror finished stainless steel bearing of the invention has strong corrosion resistance and long service life and can be widely used in special environment, such as food machinery, chemical dyeing, marine equipment, pharmaceutical industry, assembly line of IT industry, etc.

The invention discloses a printed circuit board service life assessment method based on a salt-spray environment test. The method comprises the following steps of associating the failure mode of the printed circuit board with a working condition, forming an accelerated life predication model based on the salt-spray test, drawing a changing curve between three environment factors of temperature, salt solution concentration and salt spray settling volume and test sample corrosion area by the method of combination of test data and Arrhenius accelerated life predication model, so as to predicate the service life of the printed circuit board under the salt-spray working condition. By utilizing the method, the problem that the accurate modeling is impossible in system with complex failure mechanism when analyzing small sample by traditional reliability analytical method is solved; secondly, during the researching stage of a device, through developing the accelerated life test, the test time is shortened, the service life assessment level of marine equipment is improved, the possible problems are exposed and solved completely before service, so as to formulate scientific and reasonable maintenance decision to save maintaining cost and guarantee complete war preparedness and successful task.

A self-propelled semi-submersible type maintenance vessel is provided with an engine room system and a propelling system, wherein the two sets of systems are respectively and independently controlled. A main deck is a flat and wide deck, and support buttresses and a crane running rail are arranged on the main deck. A crane is arranged on the rail. A water tight side tank, a steering engine room, a chain locker, an engine room, an oil tank, a water ballast space, a fresh water tank, a tool and a machining workshop, an oxygen room, an acetylene room, a waste material recycling room, a salvage equipment room, a spare part warehouse and a goods transfer device are arranged below the main deck. A forecastle is arranged. Ballast water is also loaded in the water tight side tank, and the total capacity of the water ballast space can enable the main deck of the self-propelled semi-submersible type maintenance vessel to dive 1-30 meters under water. The self-propelled semi-submersible type maintenance vessel has the advantages of having an offshore maintenance function, being capable of maintaining on the sea, capable of quickly sailing, diving, floating, loading and unloading, having functions salvation salvage and special heavy bulk transport, and being capable of being used for loading and transporting large-scale marine equipment or engineering structure works which are oversized, overweight and indivisible.

The invention discloses a gangway bridge device and relates to the technical field of marine equipment. The gangway bridge device comprises a base and a rotary platform which is installed above the base, wherein the rotary platform is connected with the base through a rotary mechanism, and a cab is arranged on the rotary platform. The gangway bridge device is characterized in that the rotary platform is connected with a gangway bridge, safety guardrails are arranged on the two sides of the gangway bridge, and a butt joint device is arranged at the suspended end of the gangway bridge. Compared with the prior art, the gangway bridge device has the advantages that the structural arrangement is reasonable, operation is stable, and staff can be transported between a ship and a marine platform in complicated and severe environments.

The invention relates to a system for controlling a benthonic home position video and monitoring water quality, and belongs to the fields of marine environmental monitoring and marine equipment. The system mainly comprises a floating sea-based platform, a receiving land station, a power supply system, a buoy collecting and transmitting system, an ultra-small-sized buoy and an underwater fixing device which are mounted according to an operational relationship, wherein the floating sea-based platform is connected with the receiving land station, the ultra-small-sized buoy and the buoy collecting and transmitting system respectively in a wireless manner. The system disclosed by the invention has the benefits that the system is low in cost and automated in design, the system can control the benthonic home position video and monitor the water quality in an on-line manner for a long time, and transmit high-definition home position video data and non-disturbance home position water quality monitoring data to a land base center at a low cost under the adverse sea condition resistant situation, and the system has a function of monitoring an anti-theft sea surface video; the system has a multi-point extending and integrating capacity, can provide a large data analyzing function, and has a data center; the system is steady in system, is high in data timeliness and complete and reliable in data; the maintenance cost is reduced, and the personnel safety is guaranteed.

Marine Equipment, more specifically, an apparatus that provides a durable, stable and secure, portable, full service liquor, beverage, and bar accessory storage, display and server box designed for nautical vessels in a marine environment that are subjected to rocking in water. The apparatus can best be described as a box made of plastic composite board with cut-outs on the top of the box. The cut-outs securely accommodate various bar items such as liquor bottles, wine bottles, ice bucket, wine cooler, blender, shaker cup, glasses, a cutting board, and condiment trays. The “fixed top” embodiment of the invention has a wood molding trim top rail for preventing items sitting on the box from sliding off due to the vessel rocking in water. The “storage box with slide-in, interchangeable utility tops” embodiment of the invention provides a storage box plus a full service bar top, a food preparation and service top, and a cutting board top that can be used to filet fish or as a general purpose table top for activities such as rigging bait. A stainless steel bottle opener and bar tool set are bolted to the side of the box. The box may be bolted to a mounting bracket which is designed to slide in and securely lock into a rod holder.

The invention relates to an on-site dynamic balance monitoring correcting device and an on-site dynamic balance monitoring correcting method of high-speed rotary machinery for a boat. Signals collected by an electricity vortex sensor and a rotating speed key phase sensor are transmitted to a dynamic balance monitoring correcting circuit through a head amplifier, the dynamic balance monitoring correcting circuit receives the signals transmitted by the head amplifier, the signals are transmitted to a front end analog signal processing module to be processed and are then transmitted to a device core circuit module to be calculated and stored, an input and output module and the device core circuit module exchange data, a power supply system module comprises a power supply processing module and a power supply voltage monitoring and resetting circuit, the power supply processing module provides power supply for each module chip, and the power supply voltage monitoring and resetting circuit receives all power supply signals and outputs warning and control signals. The vibration noise level of equipment for the boat is effectively reduced, and the failure handling time of the equipment for the boat is shortened; the dimension of a dynamic balance instrument is reduced; the environment adaptability of the dynamic balance instrument can be improved; the man-machine interaction can be realized; and the fast data collection and storage can be completed, and credible data is provided for monitoring and failure diagnosis.

The invention relates to a pressure load simulating system suitable for a deep-sea equipment hydraulic system and application thereof, and belongs to the technical field of marine equipment detecting.The system comprises a piston hydraulic cylinder, a three-position four-way switching valve, a working pressure meter, a working pressure transmitter, a rapid switching joint, a working pressure regulating valve, a controller, a filtering device, a first motor, a first hydraulic pump, a first one-way valve, an energy accumulator, an unloading valve, a throttle valve, an input pressure transmitter, an input pressure meter and a piston displacement sensor; the controller is electrically connected with the working pressure adjusting valve, the unloading valve, the input pressure transmitter, thepiston displacement sensor and the working pressure transmitter. The system can be applied to the detection of the deep-sea equipment hydraulic system and suitable for the load simulation of the deep-sea equipment hydraulic system which acquires power depending on volume variation, non-linear regulations of sea water pressure along with sea water depth can be simulated, and the simulation is closer to the real condition of the sea.

The invention discloses a sinking-floating type marine safety device, which comprises a sealing device, a power supply device, a float bowl core part, a sinking-floating device, positioning anchor chains, a sinker and fixing bolts. Marine engineering equipment is mounted on the sinking-floating type marine safety device; buoyancy is provided by the float bowl core part and an outer gas bag, gas is inflated from the outer gas bag to an inner gas bag by an inflator pump, the sinking-floating type marine safety device starts to sink, the sinker sinks to the bottom of sea, and the sinking-floating type marine safety device suspends in water by relying on the length of the positioning anchor chains; and the gas is inflated from the inner gas bag to the outer gas bag by the inflator pump, the sinking-floating type marine safety device floats to the sea surface, and the protection of the sinking-floating type marine safety device over the marine engineering equipment is completed. The sinking-floating type marine safety device is applied to the field of marine engineering, and the marine equipment can submerge to a certain depth through a sinking-floating means under severe marine conditions, so the damage of heavy storm waves to the marine equipment can be avoided, normal operation of the marine equipment is guaranteed and the working life of the marine equipment is prolonged.

The invention provides a method and system for tracking an underwater robot in real time, and unmanned relay equipment, and relates to the technical field of marine equipment. The unmanned relay equipment comprises the following parts of an underwater acoustic communication device for communicating with the underwater robot; an underwater robot positioning device for positioning the underwater robot equipped with an acoustic beacon; a satellite communication positioning device for satellite communication with a mother ship or a shore-based accusation tower, and for calculating real-time latitude and longitude; an inertial navigation device for providing a three-degree-of-freedom attitude angle and three-degree-of-freedom axial acceleration information; an autonomous control unit for receiving azimuth and distance data of the underwater robot calculated by the underwater robot positioning device, receiving the motion state data provided by the satellite communication positioning deviceand the inertial navigation device, calculating a navigation trajectory according to each received data and performing thrust distribution; and a power and propulsion device for receiving thrust distribution information and propelling the unmanned relay equipment to sail according to the navigation trajectory.

An anti-biofouling material for use on marine equipment is described, the anti-biofouling material comprising a polymer system comprising a hydrophobically-modified base polymer, the hydrophobically-modified base polymer comprising a base polymer having a backbone and a hydrophobically derivatized chain extender coupled to said backbone of said base polymer, wherein the hydrophobically derivatized chain extender comprises a hydrophobic moiety. The anti-fouling casing comprises a hydrophobic surface that serves to prevent biofouling of the surface.

The invention discloses photocuring environment-friendly type weather resistance PVD (physical vapor deposition) finishing coat and a preparation method and application thereof. The finishing coat is prepared from the following ingredients in parts by weight: 20 to 50% of organic silicon resin, 10 to 35% of urethane acrylate, 10 to 20% of acrylate monomer, 5 to 30% of inorganic-organic hybrid particle, 1 to 5% of photoinitiator, 0.6 to 3% of light stabilizer and 0.5 to 3% of additive. Weather resistance of the PVD finishing coat disclosed by the invention is improved from multiple paths. According to the photocuring environment-friendly type weather resistance PVD finishing coat disclosed by the invention, a UV photocuring technology is utilized to solve the problem of serious pollution caused by water chromium plating and a traditional solvent type PVD finishing coat technology. The PVD finishing coat disclosed by the invention can be applied to the fields of mobile phone, automobile metal exterior, marine equipment and the like which have strict requirements for weather resistance.

The invention relates to an autonomous recovery device and control method of an all-depth unmanned submersible, Aiming at the difficulty of recovering the unmanned submersible vehicle after sea trialoperation, by the heading angle and the acceleration information of each shaft collected by the attitude sensor, combined with PID route control algorithm, the unmanned submersible vehicle can have autonomous route and navigation error correction ability, and can adjust the heading and the motion state of each propeller automatically, so as to ensure that the unmanned submersible vehicle always runs on the target route and the route deviation is always within the controllable range. The unmanned submersible vehicle can control the propeller to sail to the mother ship autonomously by using Beidou positioning and communication function, which realizes the intelligence of the unmanned submersible vehicle recovery, and improves the speed, stability and accuracy of the unmanned submersible vehicle recovery in the sea experiment. The invention has good universality and can be widely used in the control system of deep-sea operation ROV, AUV, ARV and other marine equipment.

A system for retrieving a device from the bottom of a body of water includes a clamp configured to be slidably affixed to the device above the water bottom. The clamp has a selectively engageable lock to fix a position of the clamp on the device. A line ratchet is coupled to the clamp. A line is disposed through the line ratchet. A first flotation device is coupled to one end of the line. A second flotation device is coupled to the other end of the line. The system includes means for applying tension to the line disposed proximate the second flotation device. The line ratchet is arranged to enable movement of the line therethrough toward the means for applying tension, and is also arranged to substantially prevent motion therethrough in the opposite direction.

A fibre-coated marine material has antifouling properties, without necessarily containing bioactive agents. At least a part of the marine material is covered by piles of fibres having a thickness of at least 50 μm and a fibre length of at least 3 mm. The thickness-to-length ratio of the fibres is at least 0.010, and the piles of fibres have a density lower than 40 fibres / mm2. The fibre coating can be directly applied onto the marine material, such as ropes and construction parts, or can be present on sheets which can be applied on the marine equipment.

A system for retrieving a device from the bottom of a body of water includes a clamp configured to be slidably affixed to the device above the water bottom. The clamp has a selectively engageable lock to fix a position of the clamp on the device. A line ratchet is coupled to the clamp. A line is disposed through the line ratchet. A first flotation device is coupled to one end of the line. A second flotation device is coupled to the other end of the line. The system includes means for applying tension to the line disposed proximate the second flotation device. The line ratchet is arranged to enable movement of the line therethrough toward the means for applying tension, and is also arranged to substantially prevent motion therethrough in the opposite direction.

The invention provides a submarine marine static sounding machine, and belongs to the technical field of marine equipment. The problem that an existing static sounding machine does not have enough push-in force during continuous push-in operation is solved. The submarine marine static sounding machine comprises a seabed frame and a lifting structure which is fixedly connected to the seabed frame and composed of a pulley and a steel wire rope. A sounding rod is arranged in the seabed frame in a penetrating mode, and the lower end of the sounding rod extends out to the lower side of the seabed frame. A static sounding probe is arranged at the lower end of the sounding rod. A continuous push-in hydraulic system used for driving the sounding rod to be pushed in or lifted up is arranged on the seabed frame. A rod clamping device used for clamping the sounding rod during push-in or lifting-up operation is arranged on the continuous push-in hydraulic system. A submarine hydraulic control unit and an inclination measurement and electric control unit are further arranged on the seabed frame. The continuous push-in hydraulic system is connected with the submarine hydraulic control unit. The submarine marine static sounding machine has the advantages that the push-in force and lifting-up force are large, and the static sounding push-in depth can meet the engineering design requirement.

The invention provides a noveL ship stabiLizing fin, and beLongs to the technicaL fieLd of marine equipment. The noveL ship stabiLizing fin comprises a stabiLizing fin body, a rotating body, a first motor and a speed reducer, the stabiLizing fin body is fixedLy connected with the rotating body, the stabiLizing fin body incLudes a teLescopic wing pLate and a hydrauLic oiL cyLinder, the stabiLizingfin body is provided with a storage cavity and a first mounting cavity, the storage cavity is disposed outside the stabiLizing fin body, the teLescopic wing pLate is sLidabLy disposed in the storage cavity, the first mounting cavity is disposed on the side, cLose to the rotating body, of the stabiLizing fin body, the hydrauLic oiL cyLinder is disposed in the mounting cavity, the end of a piston rod of the hydrauLic oiL cyLinder penetrates through the first mounting cavity and extends into the storage cavity, and the end of the piston rod of the hydrauLic oiL cyLinder is hinged to the teLescopic wing pLate. The fin uses the hydrauLic oiL cyLinder to push the teLescopic wing pLate in different sea conditions to adjust the force receiving area of the stabiLizing fin, and improves the safety and seaworthiness of a ship.

The invention discloses a waterborne epoxy graphene zinc anticorrosive coating. The waterborne epoxy graphene zinc anticorrosive coating comprises a first component and a second component, wherein thefirst component is prepared from the following components in parts by weight: 5-10 parts of a waterborne epoxy resin curing agent, 0.5-1 part of a dispersant, 1-3 parts of an anti-settling agent, 1-3parts of a coalescing agent, 10-15 parts of body pigment, 42-65 parts of zinc powder and 4.5-5 parts of graphene dispersion slurry. The second component is prepared from the following components in parts by weight: 30-40 parts of aqueous epoxy emulsion, 1-2 parts of an anti-flash rust agent, 5-15 parts of water and 0.2-0.8 part of a defoaming agent. The waterborne epoxy graphene zinc anticorrosive coating has high utilization rate of zinc powder and is easy to prepare, and the formed coating has excellent comprehensive properties, such as good compactness, excellent cathodic protection performance and shielding performance, anticorrosive performance is remarkably improved, and the waterborne epoxy graphene zinc anticorrosive coating has wide application prospects in the field of marine equipment anticorrosion.

The invention relates to the field of marine equipment and discloses an underwater sonar measuring equipment laying and retracting mechanism. The underwater sonar measuring equipment laying and retracting mechanism comprises a base, a laying frame, a laying rod and a rotating shaft, wherein a screw rod bearing seat and a guide rail are fixed to the base; the laying frame comprises a locking hook and an installation frame; the laying rod comprises a first laying connecting rod, a second laying connecting rod and a third laying connecting rod which are connected in sequence; one end of the rotating shaft is provided with a round shaft body, and the other end of the rotating shaft is provided with two hinged semi-arc-shaped hinges; one of the semi-arc-shaped hinges is fixed to the round shaft body, and the other semi-arc-shaped hinge is movable; and after being fastened, the hinges are locked through screws so that the laying rod can be clamped. According to the underwater sonar measuring equipment laying and retracting mechanism, the laying mode is simple, the structure is reliable, after working is completed, equipment can be retracted to a ship side by rotating the laying rod, and the laying and retracting mechanism can sail along with a ship or conduct secondary testing without being disassembled. The underwater sonar measuring equipment laying and retracting mechanism has good suitability and can be carried on the outer sides of ships with various shapes and sizes.

The invention provides a pile body cleaning ship for marine equipment. The pile body cleaning ship for the marine equipment comprises a cleaning ship body, a cleaning mechanism, a centralizing mechanism, a driving mechanism, a clamping lifting mechanism, and a grinding mechanism, wherein the cleaning ship body comprises a connecting plate, two ship bodies and a propeller, the two ship bodies are symmetrically and fixedly connected to the two ends of the connecting plate, the propeller is mounted at the rear end of the connecting plate, and the cleaning mechanism is fixedly connected to the twoship bodies; and the cleaning mechanism comprises a mounting plate, supporting rods, first air cylinders, first piston rods, barrel bodies, annular rotating blocks, annular rotating grooves, second air cylinders, second piston rods, an arc-shaped mounting plate and brushes, the mounting plate is fixedly connected to the upper ends of the two ship bodies through the two supporting rods, and the two first air cylinders are symmetrically and fixedly connected to the side wall of the upper side of the mounting plate. The pile body cleaning ship for the marine equipment has the advantages that thesurface of the pile body is convenient and rapid to clean, the labor intensity is low, and the working efficiency is high.

The invention relates to an ocean wave model prediction method based on an active disturbance rejection state observer and belongs to the data processing and prediction technology field. The method comprises steps that firstly, rapid Fourier transform of heave displacement signals at a measurement time segment is carried out, amplitude and phase of a signal corresponding to each simple harmonic wave are solved, the main frequency component quantity of the heave motion and a harmonic wave parameter corresponding to each mode are identified through amplitude peak value detection, a Kalman observer is designed, the Kalman observer is utilized to observe each measured mode simple harmonic wave and each mode simple harmonic wave of main frequency components, a harmonic wave prediction parameter corresponding to each mode simple harmonic wave of the main frequency components is estimated and updated online, the heave motion of synthetic marine equipment in the future prediction time segment is predicted based on the prediction parameters, phase rectification compensation for a wave compensation system is carried out in advance, and the prediction effect is comprehensive, strict and accurate.

The invention discloses a flexible bionic side line sensor of an integrated IPMC sensing structure. The flexible bionic side line sensor comprises an integrated IPMC sensing structure, a flexible upper base film, a flexible lower base film, a fixed circular truncated cone and a sensing top, wherein the bottom of the integrated IPMC sensing structure is attached between the flexible upper base filmand the flexible lower base film in an interlayer structure mode, and the upper part and the lower part of a vertical cilium-shaped structure of the integrated IPMC sensing structure are coated and connected by the sensing top, and a center through hole of the fixed circular truncated cone penetrates to the bottom in a sleeving mode, and is fixedly connected with the surface of a bottom sensing unit of the integrated IPMC sensing structure. According to the invention, the intelligent material IPMC with excellent comprehensive performance is used as a sensing structure, the process is simple and feasible, the sensing of the flow velocity and the flow direction can be realized, the sensing structure can be conveniently and randomly attached to underwater vehicles with surfaces in differentshapes, and the adaptability and the practicability to marine equipment with surfaces in complex shapes are enhanced.

The invention relates to the field of antibacterial anticorrosive products, especially to a graphene-modified antibacterial anticorrosive paint. Raw materials of the antibacterial anticorrosive paintcomprise, by weight, 30-50 parts of epoxy resin, 15-35 parts of modified diatomite, 0.5-10 parts of a graphene material, 0.5-1 part of nano-silver particles, 8-20 parts of a filler, 1.5-6 parts of anauxiliary agent, 13-15 parts of nano-silver cooper-supported POSS-based resin and 16-25 parts of water. The prepared graphene-modified antibacterial anticorrosive paint can solve practical problems inthe fields of ship, marine equipment, granary, etc. which have antibacterial and anticorrosive requirements. The product has good economic benefit, and energy materials are saved. The product has excellent adhesion and good wear resistance in the aspects of steel structures, metal plates, etc., and can be resistant to high and low temperature, high salinity and bacterial corrosion to achieve theantibacterial and anticorrosive effect.

The invention relates to a double output and self-balance planetary reducer, and belongs to the marine equipment field. The planetary reducer comprises at least a casing component and a planet carrier component, and is characterized in that an end cap and the casing are connected though a screw, a clamping ring is fixedly connected with the end cap through a screw, and a bearing is assembled at the right end of the casing to form a casing component with a cavity inside; the planet carrier component includes that a left sun gear is in linkage connection with a right sun gear through a bearing, a left planet carrier is fixedly connected with a right planet carrier through a pin and a screw, a planet shaft is assembled on the left planet carrier and the right planet carrier, a left planet gear is assembled on the planet shaft through a bearing and is meshed with the left sun gear, and a right planet gear is assembled on the planet shaft through the bearing and is meshed with the right sun gear; a right gear ring is connected with an inner output shaft and is fixed on the right sun gear through a bearing; and a left gear ring is connected with an outer output shaft and is fixed on the left sun gear through a bearing. According to the double output and self-balance planetary reducer, equal output speed and torque of the two output shafts in opposite directions are achieved.