Blade tip trailing edge enhancing device and wind power generation blade with same

Abstract

The invention discloses a blade tip trailing edge enhancing device and a wind power generation blade with same. The device comprises a first trailing edge component, a second trailing edge component and an enhancing member, the first trailing edge component is bonded to the second trailing edge component, a blade tip end is formed between the first trailing edge component and the second tailing edge component, the outer surface of the blade tip end is provided with a tip end face, a windward face and a leeward face, the two ends of the tip end face are connected with the windward face and theleeward face respectively, the blade tip end is internally provided with a cavity, the enhancing member is located in the cavity, the outer side of the enhancing member is provided with a connecting face, the connecting face is connected with the first trailing edge component and the second tailing edge component, and the connecting face corresponds to the tip end face and the windward face. The wind powder generation blade comprises the blade tip trailing edge enhancing device, the cracking and the like of the blade tip end is effectively avoided, and therefore the stability of the blade tiptrailing edge enhancing device is greatly improved.

Description

technical field [0001] The invention relates to a blade tip trailing edge reinforcement device and a wind power generation blade comprising the same. Background technique [0002] In the industrial production process of megawatt-level blades, due to the narrow space of the blade tip trailing edge and the small distance from the core material to the edge, the bonding width is generally narrow in design, resulting in low structural strength of the blade tip trailing edge, although It can meet the load when the blade is running, but due to the fluctuation of the control level, the turbulence of different wind field locations is different, and the load on the blade tip area is also different. The local ground roughness is too high in this area, and the wind speed at the blade tip is too high, which is easy to cause fatigue. cracking. At the same time, the location of the wind field is moving from north to south, and the probability of lightning strikes on the blade tips increas...

AI Technical Summary

Problems solved by technology

[0002] In the industrial production process of megawatt-level blades, due to the narrow space of the blade tip trailing edge and the small distance from the core material to the edge, the bonding width is generally narrow in design, resulting in low structural strength of the blade tip trailing edge, although It can meet the load when the blade is running, but due to the fluctuation of the control level, the turbulence of different wind field locations is different, and the load on the blade tip area is also different. The local ground roughness is too high in this area, and the wind speed at the blade tip is too high, which is easy to cause fatigue. to crack

At the same time, the location of the wind field is moving from north to south, and the probability of lightning strikes on the tip of the blade increases year by year. After lightning strikes, the tip and trailing edge area is more likely to cause cracks

Images