Question

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New 35F blade with FRP pultruded shaft represent the most suitable product for Wet application with VFD device, combining the unique advantages of the flexible design together with the high resistance against corrosion effects.
Special root cap design determines a total efficiency increase reducing reverse airflow effects and allowing a better flow distribution along the blade.
Available from 20 feet diameter to 36 feet diameter with different G hub configurations to optimize blade length and natural frequency values. Combination of different materials and painting cycles offers the perfect solution to resist under the most aggressive environmental conditions, including offshore and seawater applications.
Cofimco’s extensive research and laboratory test have resulted in the development of a new innovative shaft to connect the blade air foil to the hub, the new pultruded FRP shaft with carbon-fiber. The innovative shaft material gives the blade a suitable elasticity, between a flexible and rigid connection. As a result, vibration introduced by the fan to the supporting structure is noticeably reduced. The blade equipped with the innovate shaft is made with a traditional aerodynamic airfoil, fixed to the shaft by means of bolts.
Special root and tip caps are fixed to the airfoil by mean of rivets.
The 35F Cofimco fan blade is the first and only worldwide blade with pultruded FRP shaft with carbon-fiber, the following goals are achieved using the innovative material and dampening shaft design:
• The vibrations and loads introduced by large fan blades in the supporting structure are greatly reduced thanks to the resulting blade elasticity, midway between flexible and rigid links.
• The fan blades are able to withstand severe duty points and manage the high abrupt loads frequently introduced to the blades of large fans.
• Drive system life is extended and supporting structure preserved. This new material and design represent a great improvement in the blade shaft strength and performance.

Answer 1

新35 f与FRP应用于叶片轴代表湿最合适的产品应用与节能设备,结合灵活的设计的独特优势的高抵抗腐蚀的影响。
特殊根冠设计决定了总效率增加减少反向气流影响,允许一个更好的沿着叶片流分布。
可以从20英尺直径36英尺直径不同的G中心配置优化叶片长度和固有频率值。结合不同的材料和绘画周期提供了完美的解决方案下抵抗最积极的环境条件,包括离岸和海水的应用程序。
Cofimco广泛研究和实验室测试的发展导致了一个新的创新轴叶片空气箔连接到中心,新的应用于玻璃钢和碳纤维轴。创新轴材料给出了叶片合适的弹性、柔性和刚性连接。因此,振动引入的风扇支持结构明显减少。刀片配备创新轴是用传统的气动翼,通过螺栓固定在轴。
特殊的根和翼尖帽是固定铆钉的意思。
35 f Cofimco风机叶片是世界第一个也是唯一一个叶片与应用于玻璃钢和碳纤维轴,下面的目标是通过使用创新的材料和抑制轴设计:
•振动和负载支撑结构中引入了大型风机叶片大大减少由于弹性产生的叶片,介于柔性和刚性连接。
•风机叶片能够承受严重的责任分和管理高突然加载经常引入叶片大粉丝。
•驱动系统保存生命扩展和支持结构。这种新材料和设计代表了一个伟大的叶片轴强度和性能的改善。

Answer 2

FRP拉挤轴新35F叶片代表变频调速装置湿应用最合适的产品，结合柔性设计的独特优势与高抗腐蚀性能的影响。
特别的根帽设计确定了总的效率增加，减少反向气流的影响，并允许更好的流量分布沿叶片。
可从20英尺直径36英尺的直径与不同的轮毂配置，以优化叶片长度和固有频率值。不同的材料和绘画周期的组合提供了完美的解决方案，以抵抗最积极的环境条件下，包括海洋和海水的应用。
可风可广泛的研究和实验室测试已经导致一个新的创新发展轴连接叶片的空气衬托的枢纽，新的碳纤维拉挤玻璃钢轴。创新的轴材料提供了一个合适的弹性，灵活和刚性连接的刀片。其结果是，由风扇引入的支撑结构的振动明显降低。采用传统的气动翼型，通过螺栓固定在轴上，配备创新轴。
特殊的根和顶帽是用铆钉固定的。
遥感可风可风扇叶片与碳纤维拉挤玻璃钢轴的第一和唯一的全球刀片，下面的目标是用创新材料和阻尼轴设计实现：
由大型风机叶片在支撑结构中引入的振动和荷载，大大减少了由于所产生的叶片弹性，在柔性和刚性连接之间的中间。
风机叶片能够承受严重的工作点，并管理高的突然负荷频繁地引入到大型风扇叶片。
驱动系统的寿命延长和支持结构保存。这种新的材料和设计代表了巨大的改善，在叶片轴强度和性能。