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Deepwater diamond wire sawing machine
ActiveCN106141304AConvenient for underwater workGuaranteed lifeMetal sawing devicesMetal sawing accessoriesDiamond wire sawEngineering
The invention provides a deepwater diamond wire sawing machine which is majorly composed of a cutting drive mechanism, a feeding drive mechanism, a feeding speed regulating mechanism, a string bead wire tensioning mechanism and clamping mechanisms, and used for completing cutting repair of underwater structures. The feeding speed regulating mechanism is adopted for the deepwater diamond wire sawing machine, the feeding speed can be regulated along with the change of tension of a string bead wire in the operating process, and the service life of the string bead wire, the cutting efficiency of the machine and the reliability of cutting operation are effectively guaranteed. The feeding drive mechanism can promote transmission separation of a feeding motor and a lead screw, so that overload protection for the feeding drive mechanism is achieved; and meanwhile, under the condition that the machine does not have power, a handle can be rotated for feeding, and integrally automatic and manual drive feeding is achieved. A strong spring, a nut and a screw are adopted for tensioning of the string bead wire tensioning mechanism, and vibration of the string bead wire in the cutting process can be effectively reduced accordingly. The deepwater diamond wire sawing machine is provided with buoyancy materials and a deepwater valve box and suitable for deepwater environment operation.
Owner:HARBIN ENG UNIV
Deepwater drilling device based on near surface deviation
ActiveCN101109269AReduce lateral displacementConvenient for underwater workUnderwater drillingSealing/packingOcean bottomEngineering
The invention relates to a deep-water well-drilling device that is based on near-water-level disengagement, which is characterized in that, the drilling device comprises a water-isolating pipe connected with a well-drilling platform; in the middle of the water-isolating pipe, an upper flexible joint is arranged; the water-isolating pipe passes a float cabin and is connected with a blowout preventer; the upper end of the float cabin is connected with the water-isolating pipe through a disengaging mechanism; below the blowout preventer, a ballast tank is arranged; between the blowout preventer and the ballast tank, an upper wellhead is placed; the upper end of a stress joint connected with a centering guide goes deeply into the ballast tank and is connected with the upper wellhead, and the lower end of the stress joint is connected with a hi-pressure water-isolating pipe, out of which a float block is provided; the bottom end of the hi-pressure water-isolating pipe is connected in sequence with a lower flexible joint, a lower wellhead, a conduit and a casing pipe; the conduit and the casing pipe are fixed in the seabed; between the perimeter of the blowout preventer and the lower part of the opening of the moon pond of the well-drilling platform, at least three centering ropes are connected. The invention is of high applicability, steady performance, is convenient to disengage the water-isolating pipe, and can be widely used in deep-water well drilling.
Owner:CHINA NAT OFFSHORE OIL CORP +1
Neutral-floatage U-boat with canard arrangement, its navigation depth and suspending stop control thereof
InactiveCN1746077AImprove mobilityReduce volumeUnderwater vesselsUnderwater equipmentClosed loopGravity center
A submarine with duck-type layout features that its floatage is close to and slightly greater than its gravitation to make the central point of floatage action is above its gravitational center, and 4 linked elevating rudders are arranged at both sides of submarine to make their total vertical action line coincides with the gravitation line of submarine. A method for controlling its navigation depth features used of a closed-loop negative feedback control system to control the deflection angle of 4 elevating rudders. A method for suspending it at a given position in seawater features use of at least two closed-loop negative feedback control systems for the distance and depth control to regulate the direction and speed of propeller and the deflection angle of elevating rudders. It is more suitable for robot submarine or toy.
Owner:刘歌群
Platform type microbubble functional ship
InactiveCN106818607AImprove oxygenation capacityOxygenation achievedMixing methodsTransportation and packagingImpellerMicrobubbles
The invention discloses a platform type microbubble functional ship. The platform type microbubble functional ship comprises a ship body, and an underwater platform and a microbubble generator which are arranged at the bottom of the ship body, wherein the underwater platform is provided with supporting columns; the supporting columns are connected with the ship body; the microbubble generator comprises a fixed pipe, a motor, air exhausting impeller and a bubble discharger; one end of the fixed pipe is connected with the ship body, and the other end of the fixed pipe is connected with the motor; the motor is connected with a power supply and the air exhausting impeller; the air exhausting impeller is located in the bubble discharger; the bubble discharger is connected with the fixed pipe; an air feeding hole is formed in the fixed pipe; the air feeding hole is connected with an air compressor and an air feeding pipe which are mounted on the bubble discharger and the ship body. Microbubbles generated by the platform type microbubble functional ship are high in oxygen enrichment capacity and can carry drugs, to realize oxygen enrichment in water from bottom to top; the bubble discharger is mounted at the bottom of the ship body and can move along with the ship and stir the water to enable the water to be circulated up and down, so that the water quality is improved, and the water is activated to supply a better growing environment to fish and shrimps in river water or lake water.
Owner:蚌埠市圆周率电子科技有限公司
Working tool magazine for underwater wet modular reloading of ROV (Remotely-Operated Vehicle) and docking device thereof
ActiveCN107021194AImprove workabilityImprove efficiencyUnderwater equipmentUnderwaterMarine engineering
The invention relates to a working tool magazine for underwater wet modular reloading of an ROV (Remotely-Operated Vehicle) and a docking device thereof. The working tool magazine comprises a tool magazine, wherein the top of the tool magazine is docked with the ROV through a docking module; an upper half part of the docking module is fixed on the ROV; a lower half part of the docking module is fixed on the tool magazine. The working tool magazine has the advantages of compact and reasonable structure, and convenience in operation, and underwater operation can be realized conveniently through matched docking work of the tool magazine, the docking module and the ROV. During underwater operation, a plurality of operation tool magazines carrying different tools can be arranged at a fixed underwater reloading position according to an operation task needing to be finished by the ROV in a cruising range of a mother ship, a tool magazine needed by next operation can be replaced once underwater after ROV finishes operation once, and the tools and a sampling box do not need to be replaced on the mother ship on the water surface, so that the operation capability and efficiency of the ROV are improved.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
Detecting device and detecting method for particle diameter of river sediment
InactiveCN108519310AConvenient for underwater workReal-time in-situ detectionParticle size analysisWater qualityLaser
The invention provides a detecting device and a detecting method for the particle diameter of river sediment and relates to the technical field of water quality monitoring. The detecting device is arranged in a river to be detected and comprises a coherent laser optical fiber component, an image sensor, a connector and a computer, wherein the coherent laser optical fiber component and the image sensor are respectively arranged at the two ends of the connector in a sealing manner; a detecting channel for passage of the river is arranged on the connector between the coherent laser optical fibercomponent and the image sensor; the output end of the image sensor is connected with the input end of the computer. The detecting device and the detecting method provided by the invention have the advantages that in-situ detection can be carried out in real time and on site, the equipment is simple, the operation is convenient, and the resolution can reach 0.6mu m.
Owner:GUANGZHOU BOSMA CORP
Underwater personnel operation safety monitoring system
The invention relates to an underwater personnel operation safety monitoring system, which comprises an underwater information collecting module, a buoy alarming module and a data processing center, wherein the underwater information collecting module, the buoy alarming module and the data processing center are sequentially connected, the buoy alarming module comprises a buoy, a control sensor group, a processor, a battery and a radio frequency alarming submodule, the buoy is used for ensuring the buoy alarming module to float on the water surface, the battery is used for supplying power to the control sensor group, the processor and the radio frequency alarming submodule, and the processor is respectively connected with the underwater information collection module, the control sensor group and the radio frequency alarming submodule. The monitoring system has the advantages that the structure is simple; by adopting the wireless mode, the underwater operation is more convenient and easier; and the monitoring system solves the problem that the existing underwater personnel operation safety monitoring system excessively relies on the wired transmission, is inconvenient in working, is large in size and is not suitable for underwater operation.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
Underwater pipeline automatic drilling machine
ActiveCN109047854ARealize drilling operationsConvenient for underwater workBoring/drilling machinesAutomatic controlWorking environment
The invention provides an underwater pipeline automatic drilling machine. The underwater pipeline automatic drilling machine comprises a steel wire rope guiding mechanism, a feeding driving mechanism,a drilling driving mechanism, a clamping mechanism, a pipeline positioning mechanism and an upper and lower bracket, wherein the upper and the lower support form a machine body main body part througha pin shaft, the steel wire rope guide mechanism, the pipeline positioning mechanism, the feeding driving mechanism and the drilling driving mechanism are arranged on the body part of the machine body. The underwater pipeline automatic drilling machine are used for achieving drilling work of pipelines with different sizes at one time; the system can be automatically controlled and can be operatedby an ROV, the pipeline positioning mechanism, a steel wire rope tightening mechanism can select different driving modes under different working conditions, the application is flexible, and underwater operation is facilitated; and the underwater pipeline automatic drilling machine can adapt to the narrow working environment of the seabed pipeline and the ground space.
Owner:HARBIN ENG UNIV
Underwater desilting robot
PendingCN110565713AIncrease concentrationGuaranteed suction effectMechanical machines/dredgersVehicle frameUnderwater
The invention provides an underwater desilting robot. By arranging nozzles around a silt suction cavity, high-speed jet flow is sprayed out to cut and disturb silt, the silt concentration is greatly increased, meanwhile parallel water curtains formed by the high-speed jet flow form a sectional negative pressure area, and the suction effect of a suction cup is ensured. By arranging a link mechanismin cooperation with a wheel-drive vehicle frame, underwater operations can be quite conveniently conducted, and the height of the suction cup is adjusted according to the silt height. By arranging adriving wheel comprising a roller and a spiral rib, on one hand, walking in the silt is facilitated, and wheels are prevented from sinking in the silt; and on the other hand, the silt can be stirred and dispersed so as to be conveniently sucked.
Owner:SAFECLEEN TECH
Device and method for obtaining air from water
InactiveCN1803245AConvenient for underwater workAvoiding Hazards During Oxygen DeliveryLiquid degasificationEngineeringProduct gas
The invention discloses an air acquisition device and method from water, which comprises the following parts: depression device 1, gas collection, storage and discharge device 2 and valve control structure 3, wherein the depression device 1 interconnects the gas collection, storage and discharge device 2 through gas-water separation unidirectional valve 12; the valve control structure 3 is set between the case 22 and depression device 1. The method comprises the following steps: first, adapting one sealing water depression device 1; second, proceeding the gas-water separation of evolved gas-water mixture through depression device 1; collecting the gas; third, purifying the collected gas; supplying the gas for operator. The invention saves heavy oxygen bottle, which doesn't limit the time for underwater operator and reduces the cost.
Owner:HARBIN INST OF TECH
An automatic drilling machine for underwater pipelines
ActiveCN109047854BRealize drilling operationsConvenient for underwater workBoring/drilling machinesWorking environmentMachine
The invention provides an underwater pipeline automatic drilling machine. The underwater pipeline automatic drilling machine comprises a steel wire rope guiding mechanism, a feeding driving mechanism,a drilling driving mechanism, a clamping mechanism, a pipeline positioning mechanism and an upper and lower bracket, wherein the upper and the lower support form a machine body main body part througha pin shaft, the steel wire rope guide mechanism, the pipeline positioning mechanism, the feeding driving mechanism and the drilling driving mechanism are arranged on the body part of the machine body. The underwater pipeline automatic drilling machine are used for achieving drilling work of pipelines with different sizes at one time; the system can be automatically controlled and can be operatedby an ROV, the pipeline positioning mechanism, a steel wire rope tightening mechanism can select different driving modes under different working conditions, the application is flexible, and underwater operation is facilitated; and the underwater pipeline automatic drilling machine can adapt to the narrow working environment of the seabed pipeline and the ground space.
Owner:HARBIN ENG UNIV
Underwater laser and toy battleship
InactiveCN104048655BConvenient for underwater workEasy to chase and aim at a long distanceNon-electrical signal transmission systemsBoatsLaser transmitterCavitation
The invention provides an underwater laser which comprises a laser emitter and an ultrasonic wave emitter, wherein a wave guide tube is arranged in front of the ultrasonic emitter; the wave guide tube is used for emitting out ultrasonic wave along a straight line in a single direction; a laser beam generated from the laser is emitted out along a straight line; the power of the ultrasonic wave generated from the ultrasonic wave emitter can achieve an cavitation effect on a water body. The underwater laser can generate clear and visible laser beam under water of any quality, and then working needing yardstick positioning is facilitated.
Owner:孙墨涵
Underwater lamp with good waterproof and moisture-proof performance
InactiveCN110094661APrevent intrusionAvoid corrosionGas-tight/water-tight arrangementsLight fasteningsRubber ringUnderwater
The invention discloses an underwater lamp with good waterproof and moisture-proof performance. The underwater lamp comprises a bottom plate; a rubber ring is arranged at the top of the bottom plate;fixing rings are arranged at the top end and the bottom end of the outer side of the rubber ring; a first supporting plate is arranged at the top of the rubber ring; adjusting mechanisms are arrangedat the four corners of the bottom end of the interior of the rubber ring; a protective cover is arranged at the top of the first supporting plate; a mounting assembly is arranged at the top end of theinner side of the protective cover, and a protective cover is arranged at the top of the mounting assembly. According to the invention, the adjusting mechanisms are sealed and protected through the arranged rubber ring, so that the bottom of the lamp has the elasticity of the rubber ring and also has a waterproof effect, corrosion of an internal circuit is prevented and the service life of the underwater lamp is prolonged; and the heights of four sets of electric telescopic rods are adjusted correspondingly, so that the underwater lamp can obliquely rotate according to requirements, the ornamental value of the underwater lamp is improved, underwater operation is better facilitated through the rubber ring, and the application range of the underwater lamp is widened.
Owner:广东霏瑜照明电器有限公司
Deepwater drilling device based on near surface deviation
ActiveCN101109269BReduce lateral displacementConvenient for underwater workUnderwater drillingSealing/packingOcean bottomEngineering
The invention relates to a deep-water well-drilling device that is based on near-water-level disengagement, which is characterized in that, the drilling device comprises a water-isolating pipe connected with a well-drilling platform; in the middle of the water-isolating pipe, an upper flexible joint is arranged; the water-isolating pipe passes a float cabin and is connected with a blowout preventer; the upper end of the float cabin is connected with the water-isolating pipe through a disengaging mechanism; below the blowout preventer, a ballast tank is arranged; between the blowout preventer and the ballast tank, an upper wellhead is placed; the upper end of a stress joint connected with a centering guide goes deeply into the ballast tank and is connected with the upper wellhead, and the lower end of the stress joint is connected with a hi-pressure water-isolating pipe, out of which a float block is provided; the bottom end of the hi-pressure water-isolating pipe is connected in sequence with a lower flexible joint, a lower wellhead, a conduit and a casing pipe; the conduit and the casing pipe are fixed in the seabed; between the perimeter of the blowout preventer and the lower part of the opening of the moon pond of the well-drilling platform, at least three centering ropes are connected. The invention is of high applicability, steady performance, is convenient to disengage the water-isolating pipe, and can be widely used in deep-water well drilling.
Owner:CHINA NAT OFFSHORE OIL CORP +1
A Pressure Adaptive High Speed Lightweight Underwater Cutting Tool
A pressure-adaptive high-speed light underwater cutting tool, including a power element, the output shaft of which is stepped, and bearing chamber shells are installed on the outer circumferential surfaces of the first stepped surface and the second stepped surface through deep groove ball bearings One end of the housing of the bearing cavity is equipped with a flange through a fastener, and the first handle is installed on the upper part of the flange, and the flange is locked with the power element at the same time; the outer part of the deep groove ball bearing on the second step surface is installed with a A gasket and a pair of disc springs, a sleeve is installed on the second stepped surface outside the disc spring, and a shaft seal assembly is installed on the outside of the sleeve; the outer end surface of the bearing chamber housing is equipped with an end cover through a seal, and the bearing chamber housing A compensation film protection cover is installed at a distance from the outer ring of the end cover at the same time, and a rubber compensation film is installed on the inner wall of the compensation film protection cover, which works reliably and is convenient for divers to work underwater.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
Coronary plug mounting tool
InactiveCN107939324AFirmly connectedEasy to controlBorehole/well accessoriesEngineeringMechanical engineering
The invention discloses a crown plug installation tool, which is characterized in that: it includes a body, an upper joint, a mandrel, a compression spring, a lock block and a lock block limiter; a stepped hole is arranged axially through the inside of the body; the body From top to bottom, there are top, middle and bottom, wherein, the top and the upper joint are detachably fixedly connected; the outer surface of the bottom is provided with locking block mounting holes radially, and each locking block mounting hole is equipped with a compression spring , lock block and lock block limiter, the lock block can extend or retract the lock block installation hole; the outer surface of the upper section of the mandrel and the inner surface of the step hole are connected by sliding fit, and the upper end of the mandrel is the limit end ; When the limit end abuts against the step surface of the step hole, the part of the lower end of the mandrel exposed outside the bottom of the body is the unlocking section, and the diameter of the outer surface of the unlocking section gradually decreases from top to bottom and is used for the complete shrinkage of the lock block Return to the lock block mounting hole. The crown plug installation tool of the present invention has the advantages of reliable connection, simple and convenient manipulation.
Owner:CHONGQING QIANWEI SCI & TECH GRP
Valve box structure for underwater machine hand
The invention provides a valve box structure for an underwater machine hand. A plurality of control valves and a plurality of control circuit module boards are mounted in a box body, in which a distributor and a wiring terminal are arranged; the box body is provided with a plurality of oil pipe connectors, oil supply pipe connectors, pressure compensator connectors, oil return pipe connectors andelectric wire connectors, wherein a base board of the box body is provided with a plurality of upper posts; the upper post is mounted with a control circuit main board; a plurality of control valves are mounted on the base board of the box body; a plurality of control circuit module boards are mounted on the control circuit main board; the inner ends of the plurality of oil pipe connectors are respectively connected with a plurality of control valves through oil pipes; the inner ends of the oil supply pipe connectors are connected with the distributors which are respectively connected with the plurality of control valves; the plurality of control valves are respectively connected with oil return ports of the distributors; and the electric wire connectors are respectively connected with the control circuit module boards which are respectively connected with the control valves. The structure causes the box body structure to be more compact, and improves the efficiency and sealing performance controlled by the underwater work. Therefore, the use is safer.
Owner:CHINA NAT OFFSHORE OIL CORP +2
The operation tool library and its docking device for rov underwater wet modular replacement
ActiveCN107021194BImprove workabilityImprove efficiencyUnderwater equipmentMarine engineeringUnderwater
The invention relates to a working tool magazine for underwater wet modular reloading of an ROV (Remotely-Operated Vehicle) and a docking device thereof. The working tool magazine comprises a tool magazine, wherein the top of the tool magazine is docked with the ROV through a docking module; an upper half part of the docking module is fixed on the ROV; a lower half part of the docking module is fixed on the tool magazine. The working tool magazine has the advantages of compact and reasonable structure, and convenience in operation, and underwater operation can be realized conveniently through matched docking work of the tool magazine, the docking module and the ROV. During underwater operation, a plurality of operation tool magazines carrying different tools can be arranged at a fixed underwater reloading position according to an operation task needing to be finished by the ROV in a cruising range of a mother ship, a tool magazine needed by next operation can be replaced once underwater after ROV finishes operation once, and the tools and a sampling box do not need to be replaced on the mother ship on the water surface, so that the operation capability and efficiency of the ROV are improved.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
aircraft
ActiveCN113665750BConvenient for underwater workPropulsion power plantsWatercraft hull designUnderwaterHull
The application relates to the technical field of marine engineering, and discloses an aircraft. The aircraft includes: a main hull; a buoyancy chamber, arranged on the main hull; an adjustment device, arranged on the buoyancy chamber, which can adjust the force of the buoyancy chamber, so that the aircraft can state and the second navigation state; wherein, when the aircraft is in the first navigation state, the aircraft can sail on the water surface, and when the aircraft is in the second navigation state, the The craft is capable of flipping over and navigating underwater. When the aircraft is in the first navigation state, the aircraft can drive on the water surface and reach the designated position on the water surface. When the designated position is reached, the adjustment device changes the force on the buoyancy chamber to make the aircraft flip to the second navigation state. When the aircraft is in the second flight state, it can turn over and drive under the water surface, which is convenient for the aircraft to perform underwater operations.
Owner:OCEAN UNIV OF CHINA
A kind of epoxy colored non-slip floor coating and its preparation and construction method
ActiveCN109593428BImprove ductilityGood anti-aging performanceIn situ pavingsEpoxy resin coatingsPolymer scienceAcrylic resin
The present invention proposes a kind of epoxy colored non-slip floor coating, which is prepared by the following raw materials in parts by weight: 100-140 parts of bisphenol A-epichlorohydrin type epoxy resin, 80-120 parts of 128 epoxy resin, 70-90 parts of epoxy modified acrylic resin, 50-70 parts of colored ceramic particles, 20-40 parts of new mercaptan curing agent, 10-20 parts of reactive diluent, 5-15 parts of filler, 5-15 parts of defoamer 1-5 parts of leveling agent and 1-5 parts of graphene oxide modified benzophenone UV anti-ultraviolet agent. The epoxy colored non-slip floor paint prepared by the invention is bright in color, strong in wear resistance, non-volatile in solvent, healthy and environment-friendly, can be constructed underwater, and has an appropriate curing time. No cracking, no aging, long service life, good comprehensive performance, and wide application prospects.
Owner:天华交通建设集团有限公司
A safety monitoring and management device for divers' underwater operations
ActiveCN111260889BReduce multipath interferenceImprove reliabilityAlarmsMulti-frequency code systemsDigital signal controllerSecurity monitoring
A safety monitoring and management device for divers' underwater operations, involving underwater acoustic communication technology, the device includes two parts: an above-water monitoring and management platform and an underwater information sending and receiving node. The released voice information is stored in advance through the training stage, and the voice information commands are normalized and processed into effective standard information, which is transmitted using TFSK time-frequency modulation technology in underwater acoustic communication. While ensuring the reliable transmission and robustness of information, through Play back the pre-stored voice to ensure that divers can receive information conveniently, intuitively and reliably, and achieve the purpose of safety monitoring and management of underwater divers. The device uses the STM32 high-performance digital signal controller based on Cortex M4 as the core processor. The system has the characteristics of simple and convenient implementation, low power consumption, and high cost performance. This device can be used in diving entertainment, underwater rescue, marine ranching and other application scenarios.
Owner:XIAMEN UNIV
Hydraulic Drive Rotary Ratchet Stepping Linear Actuator
ActiveCN105805396BPrecisely control the amount of rotationHigh control precisionOperating means/releasing devices for valvesLinear actuatorClockwise
The invention discloses a stepping linear driver driving a ratchet wheel to rotate through hydraulic pressure. The stepping linear driver is characterized in that a first driving cylinder and a second driving cylinder are arranged on a driver body; the first driving cylinder and the second driving cylinder are provided with reset springs for resetting; piston rods of the first driving cylinder and the second driving cylinder are arranged matched with pawls; the pawls rotate around rotating pins; compression springs are arranged on the pawls; the compression springs have spring acting force on the pawls, so that pawl teeth of the pawls are matched with the ratchet wheel, and the ratchet wheel is driven to anticlockwise or clockwise rotate; the ratchet wheel is arranged on a power shaft; a driving gear is arranged on the power shaft as well; the driving gear is meshed with a matched driven gear; and the driven gear is driven to rotate to output driving torque. According to the obtained driver, through the driving cylinders and the stepping rotation of the ratchet wheel, the rotation amount can be accurately controlled, the control accuracy is greatly improved, and the pressure of a fluid passing through a valve is guaranteed to be constant in a set range; and the ratchet wheel is driven to anticlockwise or clockwise rotate through the two driving cylinders on the left and right, the rotation is flexible and reliable, and the reliability of a throttle valve is greatly improved.
Owner:CHONGQING QIANWEI SCI & TECH GRP
Cavitation jet intelligent nozzle and underwater cleaning robot
ActiveCN112474084AImprove jet cleaning effectPrecise dockingSpray nozzlesControl systemControl engineering
The invention discloses a cavitation jet intelligent nozzle and an underwater cleaning robot, and belongs to the field of nozzles. Under different targets, water depths and inlet and outlet pressure,an optimal exit port can be automatically selected for cleaning operation by means of an embedded control system, and the water jet cleaning effect is improved. The cavitation jet intelligent nozzle comprises a nozzle body with a shaft tube connected with a shaft tube, wherein the nozzle body is provided with a plurality of exit ports of different specifications, the shaft tube is connected with apower source and a controller to drive the shaft tube to rotate, a shaft tube outlet located in the front end of the shaft tube can be in butt joint with one of the exit ports, and the shaft tube andthe nozzle body are sealed.
Owner:SHANDONG ACAD OF SCI INST OF AUTOMATION
A cavitation jet intelligent nozzle and underwater cleaning robot
The invention discloses a cavitation jet intelligent nozzle and an underwater cleaning robot, which belong to the field of nozzles. Under different targets, water depths and inlet and outlet pressures, an embedded control system can automatically select the best outlet cleaning operation, thereby improving the water quality. Jet jet cleaning effect, including the main body of the nozzle connected to the shaft tube, the main body of the nozzle is provided with a plurality of outlets with different specifications, the shaft tube is connected to the power source and the controller to drive the shaft tube to rotate, and the shaft tube outlet located at the front end of the shaft tube It can be butted with one of the multiple exit ports, and the shaft tube and the main body of the spray head are sealed.
Owner:SHANDONG ACAD OF SCI INST OF AUTOMATION
A deep water diamond wire saw machine
ActiveCN106141304BConvenient for underwater workGuaranteed lifeMetal sawing devicesMetal sawing accessoriesDiamond wire sawEngineering
The invention provides a deepwater diamond wire sawing machine which is majorly composed of a cutting drive mechanism, a feeding drive mechanism, a feeding speed regulating mechanism, a string bead wire tensioning mechanism and clamping mechanisms, and used for completing cutting repair of underwater structures. The feeding speed regulating mechanism is adopted for the deepwater diamond wire sawing machine, the feeding speed can be regulated along with the change of tension of a string bead wire in the operating process, and the service life of the string bead wire, the cutting efficiency of the machine and the reliability of cutting operation are effectively guaranteed. The feeding drive mechanism can promote transmission separation of a feeding motor and a lead screw, so that overload protection for the feeding drive mechanism is achieved; and meanwhile, under the condition that the machine does not have power, a handle can be rotated for feeding, and integrally automatic and manual drive feeding is achieved. A strong spring, a nut and a screw are adopted for tensioning of the string bead wire tensioning mechanism, and vibration of the string bead wire in the cutting process can be effectively reduced accordingly. The deepwater diamond wire sawing machine is provided with buoyancy materials and a deepwater valve box and suitable for deepwater environment operation.
Owner:HARBIN ENG UNIV
Underwater laser and toy warship
InactiveCN104048655AConvenient for underwater workEasy to chase and aim at a long distanceBoatsNon-electrical signal transmission systemsLaser transmitterCavitation
The invention provides an underwater laser which comprises a laser emitter and an ultrasonic wave emitter, wherein a wave guide tube is arranged in front of the ultrasonic emitter; the wave guide tube is used for emitting out ultrasonic wave along a straight line in a single direction; a laser beam generated from the laser is emitted out along a straight line; the power of the ultrasonic wave generated from the ultrasonic wave emitter can achieve an cavitation effect on a water body. The underwater laser can generate clear and visible laser beam under water of any quality, and then working needing yardstick positioning is facilitated.
Owner:孙墨涵
Retrievable subsea choke valve with spool
ActiveCN105736805BEnsure fluid pressurePrecisely control the amount of rotationOperating means/releasing devices for valvesValve members for absorbing fluid energyGear driveReciprocating motion
The invention discloses a valve element recyclable type underwater throttle valve. A throttle valve body is mainly composed of two parts including a valve element assembly and a valve body assembly which are arranged in a splitting manner, wherein a cage sleeve arranged at the lower end of the valve body assembly is inserted into the valve body; a nut-screw rod mechanism capable of rotating leftwards and rightwards is formed by a screw rod shaft arranged on a connector, and rotary pivoting shafts which are arranged on the left and right parts of an arch-shaped body hoop respectively; a driver assembly of the valve element assembly is driven by a pressure cylinder assembly; the pressure cylinder assembly drives a ratchet of a ratchet mechanism arranged on a power shaft to rotate, and drives a driving gear and a driven gear arranged on the power shaft to rotate in an engaging manner; the driven gear drives a valve rod assembly to do linear reciprocating motion; a cage sleeve connected with the lower end of the valve rod assembly is provided with a plurality of flow through holes with different hole diameters. The throttle valve disclosed by the invention can be used for accurately controlling rotary amount through stepping type rotation of the driving cylinder and the ratchet, so that the control precision is greatly improved, and the pressure of fluid of a pipeline basically keeps in a set range.
Owner:CHONGQING QIANWEI SCI & TECH GRP
A modular underwater vertical diamond wire saw machine
ActiveCN108788301BTimely replacementTimely replacement under waterMetal sawing devicesUnderwaterDiamond wire saw
The invention provides a modular underwater vertical diamond wire saw. The modular underwater vertical diamond wire saw is suitable for completing cutting work of underwater large-diameter structuralobjects, and can replace cutting modules underwater and keep notch positions unchanged. The saw is mainly composed of an overall frame 1, a feeding device 2, a clamping and fixing device 3, a cuttingdevice 4, a string bead wire tensioning device 5 and the like. During use, the modular underwater vertical diamond wire saw enclasps a to-be-cut structural object 6 in a vertical state. The wire saw is relatively fixed to the structural object by the clamping device, and the cutting device and the feeding device jointly act to achieve the cutting work. The underwater vertical diamond wire saw is stable and reliable in working state and small in occupied space, string bead wires can be replaced underwater through an ROV, operation is easy and convenient, implementation is easy, and the whole working process is achieved through hydraulic control.
Owner:HARBIN ENG UNIV
Device and method for obtaining air from water
InactiveCN100348292CConvenient for underwater workAvoiding Hazards During Oxygen DeliveryLiquid degasificationEngineeringProduct gas
The invention discloses an air acquisition device and method from water, which comprises the following parts: depression device 1, gas collection, storage and discharge device 2 and valve control structure 3, wherein the depression device 1 interconnects the gas collection, storage and discharge device 2 through gas-water separation unidirectional valve 12; the valve control structure 3 is set between the case 22 and depression device 1. The method comprises the following steps: first, adapting one sealing water depression device 1; second, proceeding the gas-water separation of evolved gas-water mixture through depression device 1; collecting the gas; third, purifying the collected gas; supplying the gas for operator. The invention saves heavy oxygen bottle, which doesn't limit the time for underwater operator and reduces the cost.
Owner:HARBIN INST OF TECH
underwater spearfishing vehicle
The invention discloses an underwater fish spearing carrier, which comprises a carrying unit, at least one actuating unit, at least one image acquisition unit and at least one fish spearing unit, wherein the actuating unit is combined with the carrying unit and at least comprises a motor, and a propeller which is driven by the motor and can supply power when the underwater fish spearing carrier moves; the image acquisition unit is combined with the carrying unit and is used for acquiring a needed image; and the fish spearing unit is combined with the carrying unit and at least comprises a pneumatic cylinder, a shaft level driven by the pneumatic cylinder and a complementarily fetching device which is arranged at one end of the shaft level and can complementarily fetch marine products. A user can easily perform underwater associated operation and fish spearing activity by matching the carrying unit, the actuating unit, the image acquisition unit and the fish spearing unit of the underwater fish spearing carrier, so that the effects of improving safety, reducing danger during use and reducing needs of professionals are achieved.
Owner:林丽玲
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