Abstract:
To provide a floating flap gate that requires an auxiliary force of a counterweight or the like, and in which bending does not occur in a forward end portion of a door body, even in cases in which an installation site has a wide span. A floating flap gate 1 having a forward end portion 2c of a door body 2 that is configured to rotate around a base end portion serving as a fulcrum at a time of a rising water, so as to float upwards, and provided with an upper beam 2d attached to the forward end portion 2c of the door body 2 and a door body suspension member 3 contained within the upper beam 2d, and having two ends each being connected to one end of a wire rope 4. A counterweight 5 is connected to the other end side of the wire rope 4 as a pulling device. Bolts 6b are used as adjusting members interposed between the upper beam 2d and the door suspension member 3, and are inserted into bolt holes 6a provided on an upper surface of the upper beam 2d, so as to exert an opposing force to the tension of the wire rope 4 resulting from the weight of the counterweight 5 acting on the door body suspension member 3, the opposing force being applied uniformly to the upper beam 2d during ordinary use.
Abstract:
A pressure compensator is disclosed for a subsea electric installation, which includes a rigid bottle and a flexible bag placed in the rigid bottle, the pressure compensator including a first opening at a first end of the pressure compensator allowing fluid communication of an insulating medium arranged to intermediate space between the rigid bottle and the flexible bag, a second opening at a second end of the pressure compensator allowing fluid communication of seawater arranged within the flexible bag; and a bypass channel providing fluid communication between two points in the intermediate space of the pressure compensator.
Abstract:
A device (10) for collecting and temporarily storing fluids (16) escaping from an underwater source (12, 64) and having lower density than surrounding water includes a collector (18) placed over the underwater source for collecting the escaping fluids, a riser tube (20) for transferring the collected fluids together towards the surface; and a buoyant buffer reservoir (22) maintained submerged under the surface and having an open-bottom chamber (30) for storage of the fluids. The riser tube has flow restrictors has flow restrictors comprising choke disks (58, 58′) arranged in its interior for restricting the flow of the fluids. The flow restrictors are arranged along the length of the riser tube. The buffer reservoir has arranged in its chamber a separator vessel (32) for separating gas from the fluids. The riser tube opens into the interior of the separator for discharging the fluids.
Abstract:
To provide a floating flap gate that requires an auxiliary force of a counterweight or the like, and in which bending does not occur in a forward end portion of a door body, even in cases in which an installation site has a wide span. A floating flap gate 1 having a forward end portion 2c of a door body 2 that is configured to rotate around a base end portion serving as a fulcrum at a time of a rising water, so as to float upwards, and provided with an upper beam 2d attached to the forward end portion 2c of the door body 2 and a door body suspension member 3 contained within the upper beam 2d, and having two ends each being connected to one end of a wire rope 4. A counterweight 5 is connected to the other end side of the wire rope 4 as a pulling device. Bolts 6b are used as adjusting members interposed between the upper beam 2d and the door suspension member 3, and are inserted into bolt holes 6a provided on an upper surface of the upper beam 2d, so as to exert an opposing force to the tension of the wire rope 4 resulting from the weight of the counterweight 5 acting on the door body suspension member 3, the opposing force being applied uniformly to the upper beam 2d during ordinary use.
Abstract:
A method for handling a hydro sound absorber in the region of an offshore construction site. The method includes, prior to beginning noise-emitting work, positioning a hydro sound absorber in the region of the offshore construction site. The method includes positioning a transport housing receiving the hydro sound absorber close to at least one of a seabed or a surface of the water. The method also includes spreading out the hydro sound absorber from a first functional position out of the transport housing at least one of vertically to the extent of the offshore construction site or horizontally to the geometry of the seabed.
Abstract:
A method for modifying environmental conditions comprises deploying a material having an albedo of at least 0.15 over a surface of a body of water associated with a man-made structure. The deployed material increases an albedo of the surface, increases an evaporation rate at the surface for a given temperature, and decreases a temperature characterizing the man-made structure.
Abstract:
An improved sensor fish with robust design and enhanced measurement capabilities. This sensor fish contains sensors for acceleration, rotation, magnetic field intensity, pressure, and temperature. A low-power microcontroller collects data from the sensors and stores up to 5 minutes of data on a non-volatile flash memory. A rechargeable battery supplies power to the sensor fish. A recovery system helps locating sensor fish. The package, when ready for use is nearly neutrally buoyant and thus mimics the behavior of an actual fish.
Abstract:
Self filling flood-protection bag consists of two enclosed chambers (1), that are interconnected by terminal yoke (2) in form of letter “T” and that are made of polyester fabric with high water absorbing capacity. Chambers (1) are filled up with granular or jelly mixture of water superabsorbents (3) based on cross-linked polyacrylate (SAP). Terminal yoke (2) contains two handling metal eyelets (4).
Abstract:
A method is provided for removing an abandoned marine platform from a seabed having an upper surface or mud line. The platform extends typically below the seabed and mud line. In order to remove the platform, frame sections are lowered to the seabed with a lift device. A movable cutter cable is fitted to the frame sections. At least a part of the cutter cable is positioned below the mud line. The cutter cable is moved relative to the frame sections to cut the platform below the mud line. Such movement can be a back and forth movement wherein the cutter cable moves in a first direction, stops and then moves in a second direction that is generally opposite the first direction. A lifting device can employ two vessels and two frames, each frame bridging from one vessel to the other. Winches can be used to provide movement to the cutter cable. These same winches can take up cable slack as cutting moves from one platform member (e.g. leg, jacket leg, piling, etc) to another.
Abstract:
The invention provides and systems, materials, and methods for environmental modification using climate control materials. Climate control materials may be applied locally and may have various material properties that may alter a local albedo and/or evaporation rate, and thereby affect the local environment. Climate control materials may also be reversible. The climate control materials may be deployed in different manners.