37results about How to "Reduce frontal impact" patented technology

The utility model discloses an outdoor windproof switch cabinet, which belongs to the technical field of switch cabinets and comprises an outdoor switch cabinet body, upper baffle plates are mounted on two sides of the outdoor switch cabinet body, two groups of hollow columns are symmetrically mounted in the upper baffle plates, compression springs are arranged in the hollow columns, and the compression springs are connected with the upper baffle plates. A supporting column is connected to one end of the compression spring, a connecting plate is installed at the end, away from the compression spring, of the supporting column, a rotating shaft is slidably connected to the side face of the connecting plate, a wind breaking wheel used for preventing wind is connected to the periphery of the rotating shaft, and a lower baffle is slidably connected to the end, away from the upper baffle, of the rotating shaft; according to the outdoor windproof switch cabinet, the flow direction of wind can be changed, and the front impact force of the wind on the switch cabinet can be reduced.

This invention discloses a tidal power generation vessel and its power generation method, belonging to the technical field of tidal energy vessel equipment. The power generation vessel is equipped with a converging-diffusion pipe power generation device, consisting of an inlet converging section, a straight throat, and an expanding section connected sequentially. Both the converging and expanding sections have a single-sided inclination angle of 5°–18°, and both sections have helical rifling on their inner walls, with the rifling having a grooved or convex ridge structure. An axial-flow turbine is installed in the 30%–70% inlet section of the expanding section, and is connected to the onboard generator set. This invention uses helical rifling to create a composite axial and circumferential flow pattern in the water flow, achieving the conversion of axial kinetic energy into static pressure energy and circumferential rotational kinetic energy in the expanding section, driving the turbine to generate electricity within a stable flow field range. This invention offers flexible deployment, convenient transportation and maintenance, optimized flow field and energy distribution, reduced cavitation, blade erosion, and engine vibration, saves on consumables, and ensures stable operation, making it suitable for the long-term development and utilization of tidal energy at sea.