31results about How to "Adjust draft" patented technology

The invention discloses a water surface suspended garbage cleaning device, comprising a left hull and a right hull; a through groove is arranged in the middle of the left hull and the right hull, and an extension plate is arranged in the through groove; There is a salvage plate, and the end of the salvage plate is fixedly connected with an inclined plate; a collection box is arranged on the right side of the salvage plate, and the collection box is fixedly connected with the left hull and the right hull by bolts; The plate is connected with a horizontal hydraulic device, and the bottom of the collecting box is provided with evenly distributed fine holes. The invention is provided with a double hull, a rotating extension plate and a salvage plate, so that the garbage salvage area is large and the salvage efficiency is improved; the present invention is provided with a garbage collection, extrusion and dehydration device, which squeezes and dehydrates the garbage, and improves the single rate of garbage collection. The salvage volume and the transportation volume can be increased; the invention is provided with an airbag adjustment device to adjust the draught depth of the hull, which is convenient for salvage.

The invention discloses a single-valve type U-shaped pipe oscillation water column butt-fitting double-impulse turbine wave power generation device. The single-valve type U-shaped pipe oscillation water column butt-fitting double-impulse turbine wave power generation device comprises a buoyancy tank, a deck, a U-shaped elbow, a left impulse turbine, a right impulse turbine, a left side horizontalpipe, a right side horizontal pipe, a left side one-way valve, a right side one-way valve, a left side nozzle and a right side nozzle; the deck is arranged on the upper side surface of the buoyancy tank, and the U-shaped elbow surrounds the left side and the right side of the buoyancy tank and the bottom of the buoyancy tank; a generator is located at the center between the left nozzle and the right nozzle, the left impulse turbine is connected to the left side of the generator, and the right side of the U-shaped elbow is connected to the right side of the generator; and the U-shaped elbow isfilled with a liquid medium and air to form a gas-liquid coexistence environment. The device is simple in structure, safe, reliable, convenient to maintain, high in conversion efficiency, adjustable in inherent frequency and capable of reducing drag resistance.

The invention discloses a control method for an unmanned ship. The control method is applied to a control system for an unmanned ship. The system comprises a shore-based monitoring subsystem, a lowercomputer control subsystem, a propeller control subsystem, a steering engine control module, a propeller control module, an image acquisition module, a laser ranging module, a communication module anda temperature and humidity module; the unmanned ship comprises a ship body, a connecting structure, closed waterproof boxes and propeller sets; the ship body comprises a first ship body structure anda second ship body structure; the connecting structure is connected with the first ship body structure and the second ship body structure; the closed waterproof boxes are symmetrically arranged between the first ship body structure and the second ship body structure; the propeller sets comprise a first propeller set and a second propeller set; the first propeller set is located on the connectingstructure at one end of the ship body; the second propeller set is located on the connecting structure at the other end of the ship body; the propeller sets are symmetrically distributed along a center line; and the center line is a center line corresponding to the first ship body structure and the second ship body structure. The control method is suitable for the control and structural improvement of large unmanned ships.

The present invention concerns a rotating apparatus related to water power, particularly related to wave power, and related to conversion of energy, for instance to generate electricity. The apparatus according to the invention may comprise one or more axially connected horizontally arranged floating or neutrally buoyant rotors that are driven by a number of fins that in turn are driven by wave waterflows and / or linear waterflows, said rotors being adapted for rotation,said rotation being non-changing and independent of the direction of the waterflows. The rotational energy is preferably converted to electricity by built-in generators. In addition, the apparatus comprises an arrangement so that the apparatus is adapted to move into a position corresponding to the direction of the waterflows.

The invention discloses a comprehensive structure of semi-submersible offshore wind power and an aquaculture fishery platform. The comprehensive structure comprises a draught fan and a fishery platform arranged at the bottom of the drought fan, the fishery platform comprises a semi-submersible frame, the semi-submersible frame is a cuboid, the semi-submersible frame comprises four vertically arranged pontoons, transverse supporting and diagonal supporting for connecting the pontoons, and netting is fixed to the side wall and the bottom of the semi-submersible frame; and mooring cables are fixed to the bottom of the pontoons, and the bottoms of the mooring cables are fixedly connected with anchors arranged on seabed. According to the comprehensive structure of the semi-submersible offshorewind power and the aquaculture fishery platform, the offshore wind power technology and the deep sea aquaculture equipment technology are integrated, the offshore wind power is directly used in electrical equipment of the fishery platform, the cost of long-distance transmission is saved, a new way is also provided for offshore wind power resources, and the problem of difficult to balance the offshore wind power and terrestrial thermal power is eased.

The invention discloses a water floating platform.The water floating platform comprises a platform body (1) and multiple floating barrels (2); the water floating platform is characterized in that the platform body (1) is provided with a gas path system and an electronic control system, the floating barrels (2) are uniformly arranged along the platform body (1), a lattice structure is formed, the upper end of each floating barrel (2) is provided with an air inlet pipe (2.1) and a water outlet pipe (2.2), each air inlet pipe (2.1) is provided with a sub-control electromagnetic valve (3) connected with the electronic control system, the air inlet pipes (2.1) are connected with the gas path system, and the two ends of each water outlet pipe (2.2) fit with the bottom of the corresponding floating barrel (2) and the external water level respectively.The water floating platform has the advantages of being simple in structure, good in stabilizing performance, storm resistance and safety performance, convenient to make and install and low in energy consumption.

The invention discloses a combined type aircraft carrier. The combined type aircraft carrier comprises a first sub-ship unit and a second sub-ship unit. A first female connector is arranged on the side surface of the first sub-ship unit, and a first male connector matched with the first female connector is arranged on the corresponding side surface of the second sub-ship unit. The first female connector is provided with a first cavity suitable for receiving the first male connector, and a first pressure sensing device is arranged on the inner wall of the first cavity, matched with the first male connector inserted into the cavity and used for detecting the value of first pressure exerted on the first cavity in the vertical direction from the first male connector. The sub-ship units are provided with water supply and drainage equipment matched with pressure sensing devices in operation. According to the combined type aircraft carrier, the two sub-ship units can be well maintained at the relatively fixed positions, and the phenomenon that connection components are broken due to the difference of the horizontal positions of the two sub-ship units can be avoided.

The invention relates to the technical field of coastal engineering, in particular to an asymmetric double-buoy floating breakwater. The breakwater comprises a front buoy, a rear buoy, a connecting piece and energy dissipation pieces, the front buoy and the rear buoy are fixedly connected with two ends of the connecting piece respectively, the energy dissipation pieces used for disturbing wave motion are perpendicularly arranged on the connecting piece, the wave dissipation vertical water depth range is increased through the energy dissipation pieces, and surface energy of waves is dissipatedthrough friction and turbulence between the energy dissipation pieces and a water body. The energy dissipation pieces are stainless steel pipes or glass fiber reinforced plastic, and the buoy is madeof concrete or glass fiber reinforced plastic. According to the design, an asymmetric double-buoy form is adopted, the relative width of the floating breakwater is increased, the construction cost isreduced, meanwhile, waves are reflected through the front buoy, broken in the middle gaps and reduced again through the rear buoy, the multiple wave reduction effect is achieved, the wave absorbing capacity is remarkably improved, and particularly the long-period wave reduction effect is improved.

The invention discloses a vertical axis runner propulsor and a power generation hydrogen production ship using the same, comprising a vertical axis runner propulsor, a deflector, a buoy cabin liftingand lowering support device, a power generation system, a hydrogen production system and the like; The Hydrogen generator ship is the same in shape and small in volume as ordinary ship. The buoy cabinlifting and lowering supporting device can adjust the draught depth of the hull, adapt to various river conditions, and select different river sections for power generation according to the seasonalwater regime change. Vertical axis wheel propeller, concentrated and densely installed on the bottom of the ship, increase the installed capacity per unit area; The utility model is a lift-drag compound propeller, which is both a high-efficiency propeller and a high-efficiency hydraulic turbine, can run without additional power and driving device, and does not affect the power generation during running; The design of the air deflector not only increases the power generation capacity, but also does not occupy the space and affect the driving. The electricity generated is used to electrolyze water to produce hydrogen without grid connection and provides a stable source of hydrogen fuel for hydrogen fuel cell vehicles.

The present invention discloses a method for carrying out a load test on equipment. The method is used for a floating type offshore platform, and comprises: calculating the amount of water to be injected into a barge and the draught depth of a floating type offshore platform during a test according to the actual demand of equipment to be tested; injecting ballast water calculated in the previous step to make the barge achieve a certain draught depth, and moving the barge to a position between two floats of the floating type offshore platform and positioned below the equipment to be tested; placing or suspending a balance beam with a rigging on the equipment to be tested, and connecting the rigging to the barge; and gradually discharging the ballast water of the floating type offshore platform to make the floating type offshore platform rise and drive the barge to rise so as to reduce the draught depth of the barge, entering a load test state when the barge rises to achieve a required height, maintaining the barge at the required height for a certain time, and observing whether the equipment to be tested is deformed. The method of the invention has advantages of convenient operation and high safety.

The invention provides a suppressible crawler-type amphibious unmanned ship which comprises a ship body, wherein a master control unit and other units interacting with the master control unit are arranged in the ship body; the other units include a crawler unit and a liquid level unit for achieving draft depth adjustment of the ship; an opening is formed in the bottom of the ship body; a movable seal plate at the bottom of the ship body can be opened or sealed through the opening through sliding connection; a closed cabin is formed after the bottom of the ship body is sealed by the movable seal plate; a screw propeller is also arranged at the tail part of the ship body. According to the structure of a suppressible crawler, the resistance of the ship in water can be reduced under the premise of ensuring the amphibious function of the unmanned ship; the passing ability of the ship is greatly improved, the possible dynamic performance influence is reduced, and the application fields, such as diving and rescue, of the unmanned ship are expanded.

The invention discloses a self-weight-adjustable immersed tube of a reinforced concrete embedded tube and a design and construction method. The self-weight-adjustable immersed tube is applied to the technical field of immersed tube tunnels. The immersed tube structure comprises an immersed tube structure body and pipelines arranged in the immersed tube structure body, and the pipelines are used for pouring ballast fluid into the immersed tube structure body. The design method comprises the steps that B1, the number of groups of the pipelines is selected, and the weight range of the immersed tube structure is determined and adjusted; B2, the ballast fluid is selected, and the weight range of the immersed tube structure is determined and adjusted; and B3, the ballast fluid is poured into the immersed tube structure body through the selected groups of pipelines, and the self weight of the immersed tube structure is adjusted. The construction method comprises the steps that S1-S3, the immersed tube structure is formed through pouring; and S4-S7, navigation and installation construction are conducted. According to the self-weight-adjustable immersed tube of the reinforced concrete embedded tube and the design and construction method, the self weight in the immersed tube structure can be adjusted, the draft of the immersed tube structure is automatically adjusted, navigation is convenient, the requirement for the navigation water depth is lowered, the requirement for the foundation trench depth is lowered, the construction difficulty of the immersed tube tunnel is also lowered, and construction is more convenient.

The invention discloses a large-tonnage underwater steel pipe pile removing device and a construction method. The underwater steel pipe pile removing device comprises a buoyancy tank platform, a reinforcing connecting frame, a counter-force frame and two jacking mechanisms, wherein the buoyancy tank platform comprises two buoyancy tank systems, and each buoyancy tank system at least comprises a buoyancy tank; the two buoyancy tank systems are the first buoyancy tank system and the second buoyancy tank system correspondingly; top plates of the two buoyancy tank systems can be spliced into a whole through the reinforcing connecting frame; the counter-force frame comprises an operation platform plate, a dense-rib thick stiffening plate and a gripping and wrapping mechanism; a channel allowing the gripping and wrapping mechanism to pass is formed in the middle position of the operation platform plate, and the edge positions of the operation platform plate are located at the two transverse ends and directly connected with the top plate of the first buoyancy tank system and the top plate of the second buoyancy tank system correspondingly; and brackets are arranged on the two transverse sides above the operation platform plate correspondingly and are the first bracket and the second bracket correspondingly so as to be used for supporting the two jacking mechanisms correspondingly. Through the underwater steel pipe pile removing device, complete recycling of steel pipe piles to be removed can be achieved.

The invention discloses a super-large floater configured with draft adjustment and an intelligent shock-absorbing device. The floater comprises a floating platform, a data collecting device, a resonant liquid dampness device and a signal processing control module, the resonant liquid dampness device comprises a liquid storage chamber and a water tank, the liquid storage chamber is fixed to the bottom of the floating platform, the water tank is fixed to the bottom of the liquid storage chamber, and the liquid storage chamber and the water tank are connected through a second water pump. The floater has the advantages that the wave force borne by the floating platform is offset through the shaking of the resonant liquid dampness device in water to effectively reduce the swinging of the floating platform; peripheral wave signals and operation signals of the floating platforms are collected through multiple wave sensors and displacement sensors so that the optimal shock-absorbing effect canbe achieved by the resonant liquid dampness device under different sea conditions, the floating platform is allowed to maintain the draft depth to be unchanged in the optimizing process of the resonant liquid dampness device by the liquid storage chamber, and the draft depth can be conveniently adjusted according to the using demands and environmental restrictions of the floating type platform.

The invention discloses a novel floating fan platform, which comprises a buoy, a transition section, a heave plate and a ballast tank system connected in sequence; a fan is installed on the end surface of the buoy away from the transition section; the cross section of the transition section is smaller than any of the buoys. The height of the cross section; the cross section of the heave plate is larger than that of the fixed seat; the ballast tank system includes spherical ballast tanks and mercury ballast tanks, the top of the spherical ballast tank is fixedly connected with the heave plate, and the spherical ballast tank The position of the center of gravity of the spherical ballast tank is changed by changing the position of the internal water to adjust the stability of the platform. The mercury ballast tank is located in the spherical ballast tank. The mercury ballast tank changes the mercury pressure by changing the position of the internal mercury. The position of the center of gravity of the loading compartment thus adjusts the stability of the platform. The above-mentioned solution has a fast response speed and meets the needs of the platform for fast and stable performance. Since the draft remains unchanged, it is suitable for water areas that require water depth and has a wide range of applications.

The invention discloses a combined aircraft carrier which comprises a first sub-hull unit and a second sub-hull unit. First female connecting pieces are arranged on the side surfaces of the first sub-hull unit; first male connecting pieces which are matched with the first female connecting pieces are arranged on the corresponding side surfaces of the second sub-hull unit; the first female connecting pieces are provided with first inner cavities applicable to receiving the first male connecting pieces, first pressure sensing devices are arranged on the inner walls of the first inner cavities, are matched with the inserted first male connecting pieces and are used for detecting values of first pressures which are applied to the first inner cavities by the first male connecting pieces in the vertical directions, the sub-hull units are further provided with water supply and drainage equipment, and the water supply and drainage equipment and the pressure sensing devices can be fittingly operated. The combined aircraft carrier has the advantages that the two sub-hull units can be effectively kept at relatively fixed positions, and accordingly, connecting components can be prevented from being broken due to different horizontal positions of the two sub-hull units.

The invention discloses a biological floating island capable of fixing plants. The biological floating island comprises a floating island and a waterproof bamboo hat; one side of the floating island is provided with a parallel notch, the top part of the parallel notch is provided with a main slot; the bottom part of the main slot is provided with a hole, and a waterproof bamboo hat is arranged in the main slot; the top part of the waterproof bamboo hat is provided with a slot opening, and the waterproof bamboo hat is connected with a fixing strip through the slot opening, and the fixing strip is provided with a metal lock catch; the inner part of the fixing strip is provided with a plastic buckle, and the inner part of the floating island is provided with a plurality of water grooves; surfaces of the water grooves are provided with scale lines, four sides of the floating island are provided with fixing rails, and the surfaces of the fixing rails are provided with lock catches; the inner parts of the floating islands are provided with wireless positioners. The biological floating island can effectively fix different sizes of plants, the depth of immersion of the whole floating island can also be adjusted, so as to meet the demand of different types of plants; the building of large floating island is convenient and simple, and the wireless locator is convenient to search; besides, the biological floating island is convenient and reliable to use, and wide in applicability.

The invention discloses a super-large floater configured with draft adjustment and an intelligent shock-absorbing device. The floater comprises a floating platform, a data collecting device, a resonant liquid dampness device and a signal processing control module, the resonant liquid dampness device comprises a liquid storage chamber and a water tank, the liquid storage chamber is fixed to the bottom of the floating platform, the water tank is fixed to the bottom of the liquid storage chamber, and the liquid storage chamber and the water tank are connected through a second water pump. The floater has the advantages that the wave force borne by the floating platform is offset through the shaking of the resonant liquid dampness device in water to effectively reduce the swinging of the floating platform; peripheral wave signals and operation signals of the floating platforms are collected through multiple wave sensors and displacement sensors so that the optimal shock-absorbing effect canbe achieved by the resonant liquid dampness device under different sea conditions, the floating platform is allowed to maintain the draft depth to be unchanged in the optimizing process of the resonant liquid dampness device by the liquid storage chamber, and the draft depth can be conveniently adjusted according to the using demands and environmental restrictions of the floating type platform.

The invention discloses a vertical axis runner propulsor and a power generation hydrogen production ship using the same, comprising a vertical axis runner propulsor, a deflector, a buoy cabin liftingand lowering support device, a power generation system, a hydrogen production system and the like; The Hydrogen generator ship is the same in shape and small in volume as ordinary ship. The buoy cabinlifting and lowering supporting device can adjust the draught depth of the hull, adapt to various river conditions, and select different river sections for power generation according to the seasonalwater regime change. Vertical axis wheel propeller, concentrated and densely installed on the bottom of the ship, increase the installed capacity per unit area; The utility model is a lift-drag compound propeller, which is both a high-efficiency propeller and a high-efficiency hydraulic turbine, can run without additional power and driving device, and does not affect the power generation during running; The design of the air deflector not only increases the power generation capacity, but also does not occupy the space and affect the driving. The electricity generated is used to electrolyze water to produce hydrogen without grid connection and provides a stable source of hydrogen fuel for hydrogen fuel cell vehicles.

The present invention discloses a method for carrying out a load test on equipment. The method is used for a floating type offshore platform, and comprises: calculating the amount of water to be injected into a barge and the draught depth of a floating type offshore platform during a test according to the actual demand of equipment to be tested; injecting ballast water calculated in the previous step to make the barge achieve a certain draught depth, and moving the barge to a position between two floats of the floating type offshore platform and positioned below the equipment to be tested; placing or suspending a balance beam with a rigging on the equipment to be tested, and connecting the rigging to the barge; and gradually discharging the ballast water of the floating type offshore platform to make the floating type offshore platform rise and drive the barge to rise so as to reduce the draught depth of the barge, entering a load test state when the barge rises to achieve a required height, maintaining the barge at the required height for a certain time, and observing whether the equipment to be tested is deformed. The method of the invention has advantages of convenient operation and high safety.

The invention discloses an underwater lotus root digging machine. The underwater lotus root digging machine comprises a float bowl and a seat box, wherein the rear side of the float bowl is provided with a support rod, the two sides of the float bowl are provided with anti-collision rods, the bottom of the float bowl is provided with walking wheels and wheel placement grooves, one sides of the walking wheels are provided with a swinging oar, the upper end of the seat box is provided with a steering wheel, the steering wheel is provided with a control switch, the steering wheel is connected tothe rear end of the float bowl through a connecting rod, the front end of the float bowl is provided with a cutting knife frame, a driving device is arranged between the cutting knife frame and the float bowl, the front end of the outer wall of the bottom of the float bowl is provided with a water outlet transverse pipe, the water outlet transverse pipe is provided with multiple spray heads, the inner wall of the float bowl is provided with a first storage cylinder and a second storage cylinder, an inflator pump is arranged above the float bowl, the other side of the inflator pump is providedwith a water suction port, the water suction port is provided with a filter head, the water suction port is connected with a water suction pump, the middle end of the upper end of the float bowl is provided with a water storage tank, the water storage tank is provided with a vent valve, and the rear end of the float bowl is provided with a power device and a diesel generator in sequence. The underwater lotus root digging machine has the advantages that the operation efficiency of harvesting lotus roots is improved, the use is convenient, and the labor intensity is small.

The invention discloses a water floating platform.The water floating platform comprises a platform body (1) and multiple floating barrels (2); the water floating platform is characterized in that the platform body (1) is provided with a gas path system and an electronic control system, the floating barrels (2) are uniformly arranged along the platform body (1), a lattice structure is formed, the upper end of each floating barrel (2) is provided with an air inlet pipe (2.1) and a water outlet pipe (2.2), each air inlet pipe (2.1) is provided with a sub-control electromagnetic valve (3) connected with the electronic control system, the air inlet pipes (2.1) are connected with the gas path system, and the two ends of each water outlet pipe (2.2) fit with the bottom of the corresponding floating barrel (2) and the external water level respectively.The water floating platform has the advantages of being simple in structure, good in stabilizing performance, storm resistance and safety performance, convenient to make and install and low in energy consumption.

The invention discloses a floating ecological filter bed for riverways, and relates to the technical field of ecological filter beds, the floating ecological filter bed comprises a splicing frame and a filter bed body, the splicing frame is composed of cross beams and vertical beams, hooks are uniformly distributed at the tops of the cross beams close to the inner ring, round holes are uniformly distributed in the vertical beams, and magnets are embedded in the joints of every two vertical beams. The filter bed body is sequentially provided with a filling layer, a filter layer, a root system layer and a buoyancy counterweight layer from top to bottom, the filling layer, the filter layer, the root system layer and the buoyancy counterweight layer are woven together through a woven net, and the filter bed body is hung on the hooks of the splicing frame through the woven net. The splicing frame composed of the cross beams, the hooks, the vertical beams, the round holes, the magnets and the like is beneficial to modular assembly of the floating ecological filter bed, personalized assembly and customization can be better conducted according to the water body condition and the water area, assemblies forming the splicing frame are integrally formed by plastic materials, the mass of the splicing frame is reduced, and floating on water is facilitated.

An assembled artificial floating bridge system comprises floating boxes, positioning piles, cross beams, longitudinal beams and sidewalk plates, sleeving holes are formed at the two ends of each crossbeam, and the positioning piles are inserted into the sleeving holes. The cross beams are detachably installed on the floating boxes, the longitudinal beams are detachably installed on the cross beams and are perpendicular to the cross beams, and the sidewalk plates are perpendicularly laid on the longitudinal beams. The floating bridge system is simple in structure and is convenient to install,and all parts can be prefabricated in a factory and directly installed on site, so that the cost can be saved, meanwhile, the environment of the operation site is protected, and the application and popularization are facilitated. When the positioning piles are driven into the water bottom, a field or factory prefabrication mode can be adopted, and the water environment is protected.

The invention discloses a rectangular annular pipe type oscillating water column symmetrical wing turbine generation device, comprising a rectangular buoyancy tank, a deck, rectangular annular pipes,a generator, symmetrical wing turbines and a flow guide body, wherein the deck is arranged on the upper part of the rectangular buoyancy tank and is a horizontal plate, the rectangular annular pipes surround the four sides of the rectangular buoyancy tank in the upper and lower directions; the rectangular annular pipes are divided into left pipes, right pipes, upper pipes and lower pipes by takingthe rectangular buoyancy tank as a reference; the left pipes are symmetrical with the right pipes; the generator, the symmetrical wing turbine and the flow guide body are installed in the upper pipes; the symmetrical wing turbines are located at the centers of the upper pipes, the generator and the flow guide body are respectively located at two sides of the symmetrical wing turbines; the whole pipeline of the rectangular annular pipes is in a sealing state, and the rectangular annular pipes are filled with liquid medium and air. The device has the advantages of simple structure, safety and reliability, high conversion efficiency, convenient maintenance, ability of adjusting natural frequency of the device and reducing towage resistance.

The invention discloses a biological floating island capable of fixing plants. The biological floating island comprises a floating island and a waterproof bamboo hat; one side of the floating island is provided with a parallel notch, the top part of the parallel notch is provided with a main slot; the bottom part of the main slot is provided with a hole, and a waterproof bamboo hat is arranged in the main slot; the top part of the waterproof bamboo hat is provided with a slot opening, and the waterproof bamboo hat is connected with a fixing strip through the slot opening, and the fixing strip is provided with a metal lock catch; the inner part of the fixing strip is provided with a plastic buckle, and the inner part of the floating island is provided with a plurality of water grooves; surfaces of the water grooves are provided with scale lines, four sides of the floating island are provided with fixing rails, and the surfaces of the fixing rails are provided with lock catches; the inner parts of the floating islands are provided with wireless positioners. The biological floating island can effectively fix different sizes of plants, the depth of immersion of the whole floating island can also be adjusted, so as to meet the demand of different types of plants; the building of large floating island is convenient and simple, and the wireless locator is convenient to search; besides, the biological floating island is convenient and reliable to use, and wide in applicability.

The polar region icebreaking guiding ship based on the five-point bending principle comprises a hydraulic mechanical arm installed on a ship body and a wedge-shaped icebreaking blade located below the waterline of the bow of the ship, and the hydraulic mechanical arm comprises a base, a first joint, a large arm, a second joint, a middle arm, a third joint, a small arm and a fourth joint which are sequentially arranged; an ice breaking knife is installed on the fourth joint and is of a cylindrical structure, the large arm can rotate relative to the base, the middle arm can swing in a pitching mode relative to the large arm, the small arm can swing in a pitching mode relative to the middle arm, and the large arm, the middle arm and the small arm are all driven by hydraulic oil. According to the polar region icebreaking guiding ship based on the five-point bending principle, the five-point type icebreaking principle is used for improving the icebreaking efficiency of an icebreaker, and the problems that a traditional icebreaking mode of the icebreaker is high in energy consumption, the hull structure is prone to being damaged, and the icebreaking range is fixed are solved.

The invention relates to a solar power generation oxygen-enriched water preparation device and belongs to the technical field of an oxygen-enriched water preparation device. The device is placed in the selected water area; a photovoltaic panel is stored in a storage battery through illumination power generation; a high-pressure pump is powered by the storage battery to pump water into a vapor andwater mixing box; a gas conveying device injects gas into the vapor and water mixing box through a gas pipeline, so that the gas and the water are mixed; the mixed oxygen-enriched water is dischargedthrough a water outlet pipeline to enter the water area; and the device maintains stable in the water through a counterweight device. The solar power generation oxygen-enriched water preparation device reduces the mounting cost, saves energy, improves working efficiency, is suitable for remote areas and has wide application prospect.

The invention discloses a large-tonnage water steel pipe pile removal device and a construction method. The water steel pipe pile removal device includes a floating box platform, a reinforced connection frame, a reaction force frame and two jacking mechanisms; the floating box platform includes two sets of floating box systems, and each set of floating box systems includes at least one floating box The two groups of pontoon systems are the first and second pontoon systems respectively; the reinforced connection frame can assemble the top plates of the two groups of pontoons into one; the reaction force frame includes the working platform plate, the thick rib stiffening plate and the gripping mechanism; The working platform plate is provided with a passage allowing the gripping mechanism to pass through in the middle position, and the edge positions are at the two ends of the horizontal direction, which are directly connected with the top plates of the first and second floating box systems respectively; Each side is provided with a bracket, corresponding to the first bracket and the second bracket, which are respectively used to support the two jacking mechanisms. Through the device for removing steel pipe piles in water in the present invention, the complete recovery of the steel pipe piles to be removed can be realized.

The invention discloses a combined ocean platform, which comprises a floating platform. The facing side of the floating platform is provided with a plurality of anti-wave teeth for wave dissipation to form a toothed structure; the bottom of the floating platform is provided with a Anti-wave bulkheads used to restrain the movement of floating platforms. The invention reduces the peak value of the total wave force by arranging a plurality of anti-wave teeth on the wave-facing side of the floating platform, and arranges an anti-wave partition at the bottom of the floating platform to achieve the effect of wave dissipation, thereby reducing the movement of the floating platform response.