44results about How to "Extend outdoor service life" patented technology

The invention relates to the technical field of wind power generation, in particular to an anti-icing wind power generator blade and a preparation process thereof, in which a PVC heat-shrinkable film is provided on the wind power generator blade to prevent the wind power generator blade from being covered with ice under low-temperature weather conditions , including PVC heat-shrinkable film base material, the surface of the PVC heat-shrinkable film base material is subjected to CF 4 After etching, it becomes a rough surface with multiple grooves and pits, and a PTFE coating is deposited on the rough surface. The grooves, pits and PTFE coating form a tight cross-linked network micro-nano surface structure, which does not require The shutdown of the wind turbine does not affect the power generation of the wind turbine, saves manpower and material resources, does not need to be energized and heated, saves a lot of electric energy, does not affect the normal operation of the wind turbine, and fundamentally reduces the icing rate of the wind turbine blades, thereby Under the premise of not damaging equipment and wasting energy, the utilization rate of wind turbines in cold seasons can be improved to ensure the power generation in winter.

The invention discloses an arbitrary-curved-surface plane seamless spliced high-quality large-screen display device. The arbitrary-curved-surface plane seamless spliced high-quality large-screen display device is formed by stacking brick-shaped optical-fiber rear-projection display modules, wherein elements of each brick-shaped optical-fiber rear-projection display module include a variable-cross-section optical fiber panel, a signal processing module, a liquid crystal display panel, an LED (light-emitting diode) light source module, a fixing device, a shell, an anti-dazzling frosting coating and a touch sensing plate. The arbitrary-curved-surface plane seamless spliced high-quality large-screen display device has beneficial effects that a seamless spliced high-quality screen with small dot pitch can be produced, a display video picture of an arbitrary curved surface, a special arbitrary shape, and an arbitrary area can be realized; the seamless splicing principle is the primary-pixel splicing principle, pixel points are uniformly and compactly arranged, and the display consistency of the brightness and color is optimal; by adopting the modularized production, the constitutional part is easy to repair and replace; the touch sensing plate can be embedded into the display device, so that precision in positioning can be realized, and the picture quality and the shape of the display device are not affected; the water resistance and collision resistance are relatively good.