35results about How to "Improve floating stability" patented technology

A floating terminal for offloading an LNG carrier vessel in the sea. The floating terminal of open frame construction is moored toward its front end with a rotatable mooring arrangement so that the terminal may weathervane in response to environmental forces. Marine thrusters are provided at the aft end of the terminal for swinging the terminal away from and back toward a line defined by the path toward the terminal of an approaching LNG carrier. Offloading equipment and heat exchangers are provided on a deck of the floating structure. When an LNG carrier vessel approaches the terminal, the thrusters swing the floating terminal away from the carrier vessel approach line while a hawser at the front end of the terminal pulls the vessel close to the terminal. The floating terminal swings back toward the carrier vessel in response to operating the marine thrusters in an opposite direction until the carrier vessel and floating terminal are side-by-side. The hawser continues to pull the carrier vessel forward with respect to the terminal until loading arms at the side of the terminal are aligned side-by-side with a manifold of the carrier vessel.

The invention relates to a water transport method, belonging to the technical field of water construction. The thinking of the invention is as follows: by using hollow characteristics of a tubular member, an airbag is arranged in an inner cavity of the tubular member and is aerated so as to lead the tubular member to float on water surface after launching, and then the tubular member is towed to adestination. In the method for floating the tubular member by the airbag in the invention, the tubular member with a floating function is directly fed in water for floating by the airbag without applying a wharf, hoisting equipment, barges and the like, thus having low cost and high efficiency, and the method is applicable to transport in shallow water area due to not occupying fairways. The invention is particularly suitable for water transport of large-scale tubular members the weight of which can reach thousands of tonnage such as pipeline sinking of underwater tunnel, water intake and drainage of water box culverts of a power plant, large-diameter pipelines and the like.

The invention relates to a new platform----fission base auto-lifting platform and the using method that includes lifting main platform, base supporting structure, joint inducing device and ballasting system. It has two fissions having floating ability. The main platform has the same structure as normal platform. Guide deflection sheave and guide sleeve are installed in the fluctuation leg; the base supporting structure has fixation spud leg and soldering together to form an integer. The joint inducing device induces the accurate contraposition of fluctuation leg and the fixation leg. And ballasting system controls the vicissitude of the base supporting structure. The invention could also be used to reconstruct the existing auto lifting platform.

Floating construction comprising: a flotation base, comprising at least one essentially hollow body selectively fillable with ballast, where the maximum horizontal dimension of the flotation base is greater than the maximum vertical dimension of the floating base; a building supported by said flotation base preferably comprising a telescopic tower; downward impelling means; and at least three retaining cables the corresponding upper ends of which are attached to said flotation base, preferably in peripheral positions of the flotation base, and the corresponding lower ends of which are attached to said downward impelling means, such that said retaining cables are taut and apply a downward force on said flotation base that increases the stability thereof. And the installation method for this floating construction.

A magnetic head includes a head slider configured to float above a recording medium and having an element part for recording to and reproducing from the recording medium, the element part being situated on a medium facing surface facing to the recording medium. The medium facing surface has a first air bearing surface situated in a vicinity of a side of an air flow-out end. The medium facing surface has a rear rail having the element part situated at the side of the air flow-out end of the first air bearing surface. The first air bearing surface is covered with a lubricating layer made of water repellent resin and has an average surface roughness larger than an average surface roughness of a surface of the element part.

The invention provides a river channel floating dirt treatment device based on solar driving, and relates to the technical field of solar energy. The river channel floating dirt treatment device basedon solar driving comprises fixing devices arranged on river slopes on the two sides of a river channel, and an intercepting device placed in the middle of the river channel, wherein the interceptingdevice intercepts floating dirt floating and flowing in the river channel and collects and salvages the floating dirt; and each fixing device comprises a fixing bottom foot, a supporting rod, a sliding rod and a connecting rod, wherein the fixing bottom foot is fixed to the river slope edges close to the two sides of the river channel. According to the river channel floating dirt treatment devicebased on solar driving, the fixing devices are mounted on the river slopes on the two sides of the river channel, the intercepting device placed in the middle of the river channel is fixed through thefixing devices, and thus the intercepting device is placed in the middle of the river channel more firmly and reliably; and the intercepting device is placed in the middle of the river channel to intercept and collect the floating dirt floating and flowing in the river channel, subsequent salvage is facilitated, and the salvage efficiency of the floating dirt in the river channel is improved.

The invention discloses a buoyancy tank type self-floating flooding prevention parking place comprising a foundation pit arranged at the parking place. The foundation pit communicates with drainage pipelines; a flooding prevention floating device and limiting devices are mounted in the foundation pit; the flooding prevention floating device is mounted in the foundation pit in an embedded fit modeand can float upwards along the foundation pit; one ends of the limiting devices are fixedly connected with the foundation pit, and the other ends of the limiting devices are connected with the flooding prevention floating device; and bosses for supporting the flooding prevention floating device are arranged in the foundation pit. The structure is simple, and mounting and replacing are convenient;and the foundation pit is excavated in a traditional parking place, and the flooding prevention floating device is mounted in the foundation pit in a matched mode, so that the function of preventingrainwater through the rainwater is achieved, and a vehicle parked on the flooding prevention floating device can rise and fall automatically according to the waterlogging degree so as to be preventedfrom being flooded by the rainwater.

The invention relates to a safely detachable beidou beacon floating body with a small size and a light weight, and belongs to the field of underwater vehicle water surface positioning. At present, theunderwater vehicle is developed towards the trend of miniaturization and light weight, in addition, the function required to be realized is increased, and the packing density is larger and larger; the installation space of the beidou beacon floating body becomes smaller and smaller, and a high problem is brought to the design of the beidou beacon floating body. Therefore, a beidou antenna is assembled on a floating bag, and a structure function part of a traditional beidou beacon is not needed, and therefore the size is obviously reduced. The radial layout of a traditional beidou beacon floating body in an underwater vehicle is broken through, and instead, an axial layout is adopted, so that the narrow and small space of the small lightweight underwater vehicle can be better utilized, andthe floating body can be safely separated from the underwater vehicle for floating on the water surface in a stable state in order to indicate the position of the underwater vehicle. The safely detachable beidou beacon floating body can be used for the accurate positioning of the long-distance position during the recovery of the marine test task by the underwater vehicle.

The invention discloses a floating type solar distillation desalination apparatus, which comprises a floating seat and a light-transmitting condensation cover arranged on the floating seat, wherein adistillation chamber is formed between the light-transmitting condensation cover and the floating seat, the floating seat in the distillation chamber has a heat absorbing body capable of converting solar energy into heat energy, and a plurality of water flow channels capable of communicating the distillation chamber and the lower water area are arranged on the floating seat in the distillation chamber. According to the present invention, with the apparatus, the water in the lower water area can automatically replenish a small amount of water into the distillation chamber through the water flowchannels by using the water level difference while the heat absorbing body can only heat and evaporate a small amount of the continuous flowing water raw liquid above, ie., the heat absorbing body can rapidly heat and evaporate the water raw liquid entering the distillation chamber under low heat dissipating, such that the heat utilization rate is high, and the distillation desalination effect isgood.

The invention relates to an ice-resistant oil boom applied to an ice breaking region. The ice-resistant oil boom comprises a one-piece air sac, wherein the one-piece air sac comprises two single-piece air sacs made of a material with a flame retardant characteristic; each single-piece air sac comprises an upper edge, a lower edge and a plurality of sub air sacs (1) which are arranged between the upper edge and the lower edge in side by side and are not communicated with each other; the upper edges and the lower edges of the two single-piece air sacs are respectively sealed and connected together; a first balance weight (6) is arranged between the two single-piece air sacs; and a rope channel (2) for allowing a rope to pass is arranged along each upper edge. After each sub air sac (1) is inflated, the whole one-piece air sac forms a structure with a section shaped like a water drop. By using the ice-resistant oil boom, the containing efficiency of an oil spill accident in an ice covering water area can be increased.

The invention belongs to the technical field of overwater operation equipment, and particularly relates to overwater floating equipment. The overwater floating equipment comprises a plurality of floating units and a plurality of connecting mechanisms, each connecting mechanism is located between every two adjacent floating units and comprises a first flexible strip, a second flexible strip and a connecting assembly, and the first flexible strips and the second flexible strips are arranged on the two side walls, facing each other, of every two adjacent floating units correspondingly and connected through the connecting assembly. The overwater floating equipment provided by the embodiment of the invention is used in a heavy stormy wave environment; every two adjacent floating units can relatively float in stormy waves in six degrees of freedom such as up-down, left-right and front-back degrees of freedom; therefore, the collision force between the floating units when stormy waves exist is remarkably reduced, meanwhile, the integrity of the overwater floating equipment is guaranteed, the dynamic response of the overwater floating equipment to the stormy waves is remarkably reduced, and the floating stability of the overwater floating equipment is remarkably improved.

The invention provides a liquefied gas transport ship, a transverse bulkhead is arranged in a liquid tank in the width direction of the liquid tank, a longitudinal bulkhead is arranged in the length direction of the liquid tank, the transverse bulkhead is perpendicular to the longitudinal bulkhead, the liquid tank is divided into at least one fuel area, a left liquid cargo area and a right liquid cargo area, and the tops of the fuel area and the tops of the two liquid cargo areas communicate with a gas chamber. The liquefied gas transport ship has the beneficial effects that the transverse bulkhead and the longitudinal bulkhead are arranged in the liquid tank, the liquid tank is divided into at least one fuel area and two liquid cargo areas, and cargoes used as fuel are independently stored in the fuel areas, so that the cargoes carried by the liquefied gas carrier can be effectively utilized, and the cost of adding deck tanks and corresponding liquid cargo pipelines is saved; meanwhile, full-load sailing of other liquid cargo areas can be guaranteed, so that a free liquid level does not appear in the liquid cargo areas, and the stability is better; moreover, the fuel area is closer to the middle part of the ship than the head fuel oil tank and the tail fuel oil tank, the ship draught change is not large in the using process, and better floating state stability can be kept.

The invention discloses a steadily floating workboat for hydraulic engineering, which comprises a boat body and a driving box positioned on the rear side of the bottom of the boat body, and relates tothe technical field of hydraulic engineering. The invention discloses a steadily floating workboat for hydraulic engineering. Two floating blocks on the two sides of the boat body are pushed to the two sides of the boat body through movable plates in the two floating mechanisms on the two sides of the boat body; the contact area between the boat body bottom surface and the water surface is increased; therefore, the effect of improving the floating stability of the boat body on the water surface is achieved; two first motor output shafts are used for rotating; the two speed reducing pieces arerotated out from the grooves; a first electric cylinder driving shaft in a movable column in the speed reducing piece extends out to push a movable rod in the movable column to extend out; tooth shapes of the bottom ends of the movable rods make contact with a mud layer at the water bottom, the bottom ends of the four movable rods are inserted into the mud layer at the water bottom, meanwhile, the floating mechanisms on the two sides of the boat body are unfolded, the stability of operation of the workboat on the water surface is effectively guaranteed, and the hydraulic engineering operationefficiency is improved.

The invention relates to a mixed-ether-based floatation agent and a preparation method thereof and belongs to the technical field of coal floatation agents. The mixed-ether-based floatation agent includes, by mass, 50-60 parts of a mixed ether, 40-50 parts of a foaming agent, and 0.1-0.2 part of a surfactant. The mixed-ether-based floatation agent can enhance hydrophobicity of weathered coal, so that weathered coal washing recovery rate is increased, washing quality is controlled, and production cost is reduced.

The invention provides an axial limiting device and method for a planet carrier of a rotary type planetary gearbox. A limiting ring is installed in a clamping groove machined in the left side of upper teeth of a machine body. Inner teeth of the limiting ring are meshed with outer teeth of the machine body. The machine body is meshed with the planet carrier. The tooth thickness and the tooth space center line of the limiting ring are both aligned with the tooth thickness and the tooth space center line of the machine body. The limiting ring and the planet carrier are combined and then connected through bolts. The planet carrier is clamped in the middle of the groove of the fixed machine body through the limiting ring with the inner teeth. The teeth of the limiting ring are arranged into the clamping groove along the tooth spaces of the machine body, the inner teeth of the limiting ring are circumferentially rotated by an angle relative to the outer teeth of the machine body, the teeth of the limiting ring are stopped by the outer teeth of the machine body, the limiting ring and the planet carrier of the low-speed level are connected through the bolts, and therefore the planet carrier of the low-speed level is axially limited. The axial limiting device has the advantages of being adjustable, good in floating stability and disassembly and assembly usability and the like. The axial limiting device is simple in structure, easy to machine, convenient to install, economical and convenient to use.

A water solar lamp comprises a light transmissive casing, a solar panel, a power processing unit, and a plurality of light emitting components. The light transmissive casing comprises an upper cover, a base assembled with the upper cover, and an installation space defined by the upper cover and the base. The base is set as a water-facing side, the base comprises a ring groove for temporarily storing gas when the light transmissive casing is disposed on water, and the ring groove divides the base into an inner ring region and an outer ring region. The solar panel is disposed on the upper cover, and the power processing unit is disposed in the installation space and connected to the solar panel. The plurality of light emitting components are disposed in the installation space, and the plurality of light emitting components receive power provided by the power processing unit to emit light.

The present invention relates to a foldable derrick structure for a chip. The foldable derrick structure allows the chip to pass a shipping line with an above-water height limitation through folding the derrick thereby reducing time and cost in ship navigation. The derrick structure comprises the following components: a derrick which comprises an upper derrick component, a lower derrick component and a hinge coupler that couples the upper derrick component with the lower derrick component, while the upper derrick component is vertically divided into a first derrick component and a second derrick component; a first hydraulic cylinder which is set for the first derrick component; and a second hydraulic cylinder which is set for the second derrick component. The first derrick component and the second derrick component are driven by the first hydraulic cylinder and the second hydraulic cylinder for being rotated and folded relatively to the hinge coupler and the lower derrick component which is fixed to the ship and is supported by the ship.

The invention provides an automatic inflatable floating platform capable of being airdropped. The platform comprises a ship body, a gas cylinder and an inflating device. The ship body comprises buoys,a boat awning, stand columns, a boat bottom and a water bag, wherein the stand columns are connected to the buoys and the boat awning is connected to the stand columns. The inflating device comprisesjoints, an inflating valve body, a striker, a spring, a rocker arm and a cylindrical pin, wherein the gas cylinder is screwed at the lower part of the striker of the inflating valve body; the two joints are arranged on the left side and the right side of the inflating valve body and are screwed with one end of each gas inlet pipe; the other ends of the gas inlet pipes are connected with the upperbuoy and the lower buoy of the ship body respectively; one end of the rocker arm is connected with a main umbrella system; the other end of the rocker arm is clamped between the cylindrical pin and the striker and can rotate around the cylindrical pin to push the striker to move to break through a diaphragm of the gas cylinder valve; after the air-drop lifesaving unit is started in the air, the upward movement tension of the main parachute system pulls off the rocker arm in a rotating mode, the rocker arm pushes the firing pin to move downwards in the rotating process, the diaphragm of the gas cylinder valve is broken through, gas in the gas cylinder rushes out and enters the buoys through the joints and the gas inlet pipes, and the floating platform is unfolded and formed to generate buoyancy.

The invention provides a movable offshore oil fixing platform and a construction method thereof. The fixing platform comprises a lower foundation structure and an upper module, wherein an oil and gas production facility is arranged in the upper module; the lower foundation structure comprises a buoy, a single-stand-column structure and a connecting rod piece; the buoy is of a vertically-closed structure; a buoy cover of the buoy is provided with a drainage and exhaust pipeline connector; the buoy is connected with the single-stand-column structure through the connecting rod piece; and the single-stand-column structure is composed of a barrel-shaped foundation and a stand column which are sequentially arranged from bottom to top. The movable offshore oil fixing platform provided by the invention can be moved to a next oil field so as to be reused.

The invention relates to a rolling brush mechanism and a sweeping robot. The rolling brush mechanism comprises a fixed shell; a floating shell, which is provided with a rolling brush cavity used for assembling a rolling brush, is movably connected with the fixed shell, and can float relative to the fixed shell under the action of external force; a rolling brush driving piece, which is assembled atone end of the floating shell in the extending direction of the rolling brush cavity and can float relative to the fixed shell along with the floating shell; and a balance piece. The balance piece and the rolling brush driving piece are located at the same end of the floating shell. The balance piece can apply balance force for balancing the gravity of the rolling brush driving piece to the floating shell, and the direction of the balance force is opposite to the gravity direction of the rolling brush driving piece, so that the stress at the two ends of the floating shell tends to be balanced. By arranging the balance piece, the two ends of the floating shell are evenly stressed, and therefore the floating stability of the floating shell is improved.

Provided is an aluminum alloy substrate for a magnetic disk, with which high flattening of the entire aluminum alloy substrate is achieved, and with which it is possible for floating stability of a magnetic head to be improved further. In an aluminum alloy substrate (1) for a magnetic disk, when a rolling direction is defined as a rolling streak direction, a direction parallel to the rolling streak direction from a center S of a disk having a radius r is defined as 0 degree, and a clockwise rotation on a principal surface of the disk is defined as positive, if the plate thickness of the disk at a position (b1) represented by polar coordinates (0.72r, 45 degrees) is defined as tb1, the plate thickness at a position (b2) represented by polar coordinates (0.53r, 90 degrees) is defined as tb2,the plate thickness at a position (b3) represented by polar coordinates (0.72r, 135 degrees) is defined as tb3, the plate thickness at a position (a1) represented by polar coordinates (0.72r, 315 degrees) is defined as ta1, the plate thickness at a position (a2) represented by polar coordinates (0.53r, 270 degrees) is defined as ta2, and the plate thickness at a position (a3) represented by polarcoordinates (0.72r, 225 degrees) is defined as ta3, at least two of three inequalities in an inequality group [A] are satisfied and all four inequalities in an inequality group [B] are satisfied, orat least two of the three inequalities in the inequality group [A] are satisfied and all four inequalities in an inequality group [C] are satisfied.

The invention discloses an anti-overturning lifeboat bottom structure which comprises a lifeboat bottom, wherein a plurality of water bags are arranged at the lifeboat bottom and are mounted around the lifeboat bottom, and water inlets and water outlets are formed in the side walls of the water bags. The anti-overturning lifeboat bottom structure enhances the anti-wind wave and anti-overturning capabilities of a lifeboat, avoids the possibility that a hull overturns under a larger wave slope, realizes the purpose that the hull stably floats in a terrible ocean environment, has important significance and practical value for improving the floating stability of the lifeboat, and has higher popularization value.