4results about How to "Reduce construction scale" patented technology

This utility model discloses an integrated transition yaw connection system for wind turbines, belonging to the technical field of wind power generation equipment. The system includes a wind turbine tower, a slewing bearing, a short-section cylinder, and a lower platform. The wind turbine tower has a truss-type hollow structure. The short-section cylinder is vertically arranged and its top is welded to the lower platform as a whole. Its bottom is connected to the top of the tower through the slewing bearing. This utility model uses a hierarchical structure of truss tower-slewing bearing-short-section cylinder-platform. It utilizes the short-section cylinder to distribute the nacelle load and compensate for installation errors. Combined with the slewing bearing, it achieves low-friction and stable yaw. This structure effectively solves the problems of heavy self-weight, obvious yaw vibration, complex assembly, and easy wear of connection parts of traditional wind turbine towers. It has the advantages of lightweight, stable yaw, convenient installation, and long service life.

The utility model discloses a kind of composite photovoltaic frame pultrusion production lines, including the glass fiber yarn frame, pultrusion mould, traction machine and cutting machine arranged in sequence;Felt frame and dehumidification integrated device are provided between the glass fiber yarn frame and pultrusion mould, felt frame and dehumidification integrated device include dehumidifier and felt frame, and the top and bottom of dehumidifier are respectively provided with felt frame;Production line further includes glass fiber yarn tension adjusting device, which is arranged close to pultrusion mould.Dehumidifier and felt frame are integrated design, compact structure, small floor area, and glass fiber yarn tension adjusting device is close to pultrusion mould, and the adjustment effect of yarn tension is more direct.

The present invention discloses a cross-regional and cross-basin multi-energy complementary flexible regulation system and method in the field of power system technology, including: obtaining the load characteristics of large regional power grid one and large regional power grid two; judging whether the loads of the two regional power grids have peak-shifting benefits based on the load characteristics of the large regional power grid one and large regional power grid two; judging whether there is a peak-shaving margin between the two regional power grids in response to the loads of the two regional power grids having peak-shaving benefits; determining a transmission power regulation scheme based on the load period of the large regional power grid one and large regional power grid two in response to the peak-shaving margin between the two regional power grids; and performing power regulation between the large regional power grid one and large regional power grid two based on the transmission power regulation scheme. The present invention can clarify the arrangement of cross-regional power grid regulation methods, achieve win-win development of the two regional power grids, and jointly build a new power system.

This utility model discloses a phased reorganization layout structure for urban rail transit lines, relating to the field of rail transit line design. It includes a first line, a second line, and a third line. The first line is for near-term operation, while the second and third lines are for long-term operation. A first reserved node and a second reserved node are respectively set at the intersections of the first and second lines, and the first and third lines. At the two reserved nodes, the left and right tracks of the first line are respectively set as curved rails. The section of the first line between the first and second reserved nodes is a curved section. A first long-term reserved structure extending along the design direction of the second line is arranged at the first reserved node, and a second long-term reserved structure extending along the design direction of the third line is arranged at the second reserved node, reserving implementation conditions for long-term line reorganization. This utility model has a simple line layout structure, facilitating decomposition and reorganization into turnouts during long-term construction, enabling independent operation of each line.