The present invention relates to a method and a wind turbine structure for optimising the weight of the wind turbine and the offshore foundation. The wind turbine is operated based on the measured wave height which in turn allows the tower height to be reduced so that the ratio between the tower height and the length of the wind turbine blades is greater than 0.5. The rotor is parked in a predetermined position with a maximum or minimum clearance between the tip end of the wind turbine blades and the sea level if the measured wave height exceeds a predetermined threshold. A monitoring unit arranged relative to the wind turbine detects if one or more objects are located within a monitoring area. If an object is located within the monitoring area, the wind turbine is shut down and the rotor is rotated to the parked position.

A sealing device for a tubing arrangement, preferably for use in an offshore facility, such as an offshore wind turbine or an oil rig. The tubing arrangement has a cable or an inner tube arranged in an interior part thereof. The sealing device comprises a substantially rigid housing and a flexible plug part arranged in an interior part of the housing. The housing is mountable on or forms part of the tubing arrangement in such a manner that the interior part of the housing communicates with the interior part of the tubing arrangement. The flexible plug part comprises an inlet opening connectable to a grout source. When grout material is supplied to the flexible plug part, the flexible plug part expands, thereby providing sealing between the housing and a cable or inner tube arranged in the interior of the tubing arrangement. The sealing device can be mounted on the tubing arrangement before the tubing arrangement is mounted on an offshore facility, and the grout material can be supplied at a later time. Use of divers is thereby minimized. The sealing device can easily be removed and replaced.

A jack-up crane vessel or semi-submersible crane vessel is provided including a hull with a deck, and a crane on the hull for hoisting a load outside the deck. The crane includes a slewing crane base with a first suspension, an elongated boom that is rotatable around a horizontal rotation axis with respect to the first suspension, at least two pendants between the boom and the first suspension that mutually converge toward the distal boom section, a boom spacer between the boom and the first suspension, and a boom luffing installation for driving the rotation of the boom around the horizontal rotation axis between a lowered transport position and a raised operational position. In the direction of the vertical rotation axis the first suspension extends at least in the lowered transport position of the boom above the boom heel of the boom.

A floating wind power generation device comprises: a main buoyant body which has buoyancy and a space portion provided in the center; an auxiliary buoyant body which has buoyancy and is connected to the main buoyancy and is connected to the main buoyant body by being inserted into the space portion of the main buoyant body; a plurality of wind power generators which are vertically provided on top of the auxiliary buoyant body and generate power; a location control means which is connected to the main buoyant body and controls the location of the main buoyant body; an oscillation inhibiting means which is connected to the main buoyant body and enables the main buoyant body to maintain an equilibrium state by absorbing the sea waves; and a dock connection unit which is connected to the main buoyant body and enables a ship to lie at anchor on the sea.

A floating foundation for an offshore wind turbine has a center pipe, a buoyancy section, a weight section, and a plurality of wire ropes, The buoyancy section is connected to the center pipe to keep the foundation floating. The weight section is connected to the center pipe to provide stability to the foundation. The wire ropes are connected to the buoyancy section and the weight section and are arranged for being tensioned so as to add bending strength to the foundation The floating foundation has hoisting means for lowering or raising the center pipe. The hoisting means includes winches for increasing or decreasing a length of each of wire ropes connecting the buoyancy section and the weight section, for lowering or raising the center pipe of the floating foundation. A system is disclosed for extracting energy from wind. A method is disclosed for installing a wind turbine.

An offshore wind turbine system for the large scale production of hydrogen from seawater that includes a floating tower structure, a wind turbine generator, a lift pump, a desalination unit, an electrolysis unit, and an export riser. The floating tower structure may be secured to the sea floor by a suction anchor for deepwater deployment. The lift pump, desalination unit, and electrolysis unit are powered by the wind turbine generator and configured to pump, desalinate, and electrolytically split seawater, respectively. The hydrogen generated by the electrolysis unit is provided to the export riser for delivery to a manifold or pipeline that may be deployed upon the sea floor. Individual units of the system may be combined into a field interconnected to one or more such manifolds to increase the scale of the system.

A width-adjustable packaging bag shaper, a bag maker, a packaging machine, and a method. The packaging machine including the bag maker, a traction device and a heat sealing device are respectively arranged above the bag maker, and a width adjustment device adjusts the distances between different sub bottom plates in a front bottom plate and a rear bottom plate by using a leadscrew and slide block mechanism, and then adjusts the width of a bottom plate. The leadscrew and slide block mechanism is used as the width adjustment device of the automatic width-adjustable noodle packaging bag shaper system, and four bottom plates are respectively fixed to the width adjustment device, so the leadscrew and slide block mechanism in operation is accurate in range of adjustment, is suitable for various widths of packaging bags, and has very important significance for the three-dimensional shaping effect of the packaging bags.

An anchoring and lifting system for a wind turbine tower having a tower base; a plurality of base anchors attached to the tower base; an anchor outrigger attached to and extending laterally outward from the tower base; at least one secondary anchor attached to the anchor outrigger; a lifting outrigger attached to a hinge wherein the hinge connects the tower base and a tower for moving the tower between a raised position and a lowered position; a static cable connected between a distal end of the lifting outrigger and a hub attached to the tower; and, a lifting cable attached between the distal end of the lifting outrigger and a winch, wherein the winch is carried by the tower base.

Provided is a floating wind turbine including a hull, a wind turbine mounted on top of the hull and a counterweight suspended below the hull by a counterweight suspension is described. Also, a method for the installation is described. The counterweight includes one or more counterweight buoyancy tanks. When the internal volume of the buoyancy tanks is filled with air, the total buoyancy of the counterweight is close to or greater than its weight. Hereby it is capable of floating in a towing/maintenance position with moderate or no support in the vertical direction from the hull or other vessels. During towing, the hull substantially has the character of a barge, substantially relying on a large waterplane area and shallow draft to maintain stability.

Described are ships and docking systems comprising a fender for mounting on a bow of a ship, comprising an elastically deformable body portion, and a concave engagement surface defined by the body portion, wherein the concave engagement surface extends perpendicular to a center line of the ship, such that portions of the fender distal to the center line extend further forward in a direction parallel to the center line than a portion of the fender central to the center line.