Groth & Co. KB

The present invention relates to the technical field of submarine cable laying and discloses a early warning and handling system for submarine cable laying and an application method thereof. The early warning and handling system for submarine cable laying is arranged on a submarine cable; one end of the submarine cable is connected to a cable reel at the stern of a submarine cable laying vessel, and the other end of the submarine cable is laid on the seabed; and the submarine cable is laid by a cable laying machine on the submarine cable laying vessel; wherein the system comprises weight components and buoyancy components alternately arranged at intervals on a part of the submarine cable located in the sea, and each weight component and each buoyancy component is connected to an alarm component. When sudden extreme sea conditions are encountered during submarine cable laying, the present invention can prevent the underwater submarine cable from drifting over a large range driven by ocean currents; meanwhile, it can provide early warning for nearby ships, offshore platforms and other facilities, thus avoiding scratches and damage to the submarine cable during the laying process.

The present invention belongs to the technical field of offshore power generation, and specifically discloses a universal-joint-type connection device for connecting an offshore wind turbine platform to the seabed. By installing a cross universal-joint-type connection structure at the bottom of the main body of a tension-type floating offshore wind turbine platform and using the cross universal-joint-type connection structure as the swing center, when encountering strong winds or waves, the platform can swing in response to the winds or waves and float under the action of buoyancy. Meanwhile, by connecting the floating platform to the seabed, the forces acting on the platform main body can be transmitted to the seabed through the universal joint, avoiding the torsion phenomenon that occurs when mooring cables are used, improving the connection stability between the platform main body and the seabed, providing effective support for wind power generation equipment, and enabling the wind turbine unit to maintain stable wind-facing operation.

Disclosed herein is a pressure sensitive element (2, 2', 2a, 2b, 2a', 2b') for geothermal applications, comprising: - a shell (4, 4', 4a, 4b, 4a', 4b') enclosing a three-dimensional space, the shell (4, 4', 4a, 4b, 4a', 4b') comprising a wall (6a, 6b, 6a', 6b') having a wall thickness, the wall being made of temperature resistant and elastic material, and - a compressible and/or expandable, pressure-sensitive fluid arranged within the shell (4, 4', 4a, 4b, 4a', 4b'). The shell (4, 4', 4a, 4b, 4a', 4b') is designed to allow expansion or contraction in a first direction (A) upon external pressure change, as seen on a cross sectional plane cut through the shell (4, 4', 4a, 4b, 4a', 4b'). The cross sectional plane is parallel with the first direction (A) and wherein the first direction (A) is determined by a wall thickness of the shell (4, 4', 4a, 4b, 4a', 4b'), which is chosen to be smaller than the wall thickness of the shell (4, 4', 4a, 4b, 4a', 4b') in other parts, at least along a partial length (L) of the wall (6a, 6b, 6a', 6b') in the cross sectional plane.

Herein a diffusor (6) designed to be positioned within a borehole (4) for generating steam comprising: - a supply pipe (2) for supplying liquid having a supply capacity, the supply pipe (2) comprising a free end (2') and a plurality of supply pipe openings (18 18') arranged at the free end; - a diffusor element (12) comprising diffusor element openings; - a protection barrel (10) designed to be arranged around the free end (2') and the diffusor element (12); - at least two pressure sensitive elements (20, 20', 20'') is disclosed. The supply pipe (2) is connected to the diffusor element (12) via the at least two pressure sensitive elements (20, 20', 20''), the supply pipe openings (18, 18') varying in size in that the size of the supply pipe openings (18, 18') are decreasing towards the free end (2'), wherein the supply pipe openings (18, 18') are designed for handling a capacity that is 3 to 6 % above the supply capacity of the supply pipe (2) and wherein the diffusor element openings are distributed over the diffusor element (12), the diffusor element openings being designed for handling a capacity that is 6% to 12% above the supply capacity of the supply pipe (2).

The present application provides a method for monitoring a flow velocity and a flow direction of a tidal flat coastal current based on photovoltaic video images of a tidal flat. The method includes: obtaining a tidal flat video of a target area to be monitored; performing scene recognition based on the tidal flat video to obtain tidal flat seawater images; determining a number of observation lines based on the tidal flat seawater images, and setting a plurality of parallel flow velocity observation lines in a north-south direction and an east-west direction according to the number of the observation lines, respectively, where the parallel flow velocity observation lines include north-south parallel flow velocity observation lines and east-west parallel flow velocity observation lines; making the north-south parallel flow velocity observation lines intersect with the east-west parallel flow velocity observation lines to obtain flow velocity nodes; and obtaining the flow velocity and the flow direction of the tidal flat coastal current based on a north-south component and an east-west component of the flow velocity nodes. According to the present application, planar monitoring can be implemented, and interference of irrelevant areas can be avoided. Details of areas having local turbulence or significant changes can be effectively recorded. Flow velocity characteristics of different positions in a large-scale monitoring area can be fully reflected.

Textile backsheets including a nonwoven fabric and film, such as a vapor-permeable and liquid impermeable (VPLI) film or a non-permeable film, are provided, wherein the nonwoven fabric is directly or indirectly bonded to the film. Methods of making such textile backsheets and absorbent articles including the textile backsheets are also provided.

The present application relates to the technical field of power supplies, and discloses a method and an apparatus for configuring distributed compensators based on voltage stiffness indexes, and a computer device, a computer-readable storage medium and a computer program product. The method is applied to a new energy power station comprising multiple input branches, and comprises: determining a value of a target voltage stiffness for each of the multiple input branches, wherein the voltage stiffness is used to represent a voltage support degree; determining a target capacity and a target number of distributed compensators arranged in each of the multiple input branches based on the value of target voltage stiffness, and acquiring a station capacity and a station number according to the sum of target capacities and target numbers of the multiple input branches; and configuring the distributed compensators for the new energy power station based on the station capacity and the station number, so as to configure the distributed compensators according to a target voltage support degree. The present application solves the problem that it is difficult to accurately evaluate actual support effectiveness of distributed compensators and acquire a configuration number and a configuration capacity of distributed compensators that match with actual requirements because the configuration techniques and indexes for distributed compensators in the prior art lack phase angle information of the relevant equipment.

The present invention relates to the technical field of offshore wind power equipments and discloses a jacket platform and an offshore wind power structure. The jacket platform of the present invention comprises a frame body and a damping and vibration-reducing device; wherein the damping and vibration-reducing device comprises a shell, a damper, a displacement amplification assembly and a connection assembly; the shell is hinged on a top of the frame body; the damper and the displacement amplification assembly are arranged in the shell, and the damper is connected with a power output end of the displacement amplification assembly; the connection assembly comprises a plurality of connection cables; one end of each connection cable is connected with a power input end of the displacement amplification assembly, and the other end of each connection cable extends out of the shell and is connected to the frame body, and every two adjacent connection cables are arranged to have an included angle therebetween. The damping and vibration-reducing device in this jacket platform can realize displacement amplification, enabling the damper to give full play to its vibration-reducing effect, and moreover, it can achieve vibration reduction in multiple directions, thus having a good vibration-reducing effect and being suitable for use in the complex sea-current load environment of the ocean.

Slotted element (1) adapted to co-act with a current collector of an electrically propellable road vehicle for supplying electric power to said vehicle. The slotted element is adapted to extend along a road section at least partly recessed in a road surface. The slotted element comprises an elongated body part (1') with substantially vertical conductor slot(s) (6a-b) extending in the longitudinal direction of the slotted element. Electric conductor(s) (5a-b) is/are arranged in a respective conductor slot. The slotted element comprises collection slot(s) (7a-b) in parallel with the conductor slot(s) (6a-b), the collection slot(s) being disposed at an angle (α) relative to a vertical direction (y) of the slotted element. At least one conductor slot (6a-b) and at least one collection slot (7a-b) partly coincide with their openings (6a'-b', 7a'-b') at least partly overlapping to form a common opening at a vertical upper end of the elongated body part.

System comprising electrically propellable road vehicle(s) (6) electrically fed from segmented electric conductors (1) extending along a road section (2). The vehicle(s) comprises GNSS receiver(s) (10) and means for simultaneously determining measurement time and velocity (v_meas). The system further comprises: vehicle-external power supplies (5a-d), each being connected to one or more conductor segment (3a-f) and being controlled by power supply control means (5), GNSS base station(s) (12) and RTK positioning means configured to determine corrected vehicle position(s) using Real Time Kinematic positioning based on GNSS signals from the GNSS base station(s) and from the vehicle(s). The power supply control means (5) is configured to:- determine subsequent conductor segment(s) (3f) by comparing the corrected position (x_corr) with known conductor segment positions (x_subseq);- determine an arrival time when the vehicle (6) reaches the subsequent conductor segment(s) (3f) by extrapolation from the corrected position (x_corr) using the velocity and time lapsed since said measurement time, and- control vehicle-external power supply/supplies (5a-d) to provide electric power to subsequent conductor segment(s) (3f) at the arrival time.