Symmetric ocean current power generation device with single impeller and high length-diameter ratio
A large length-to-diameter ratio, sea current power generation technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of increased blade load impact, increased volume radial size, blade waving and vibration, etc., to achieve Reduce the blocking effect, reduce the cross-sectional area, reduce the effect of shock and vibration
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Embodiment 1
[0021] refer to figure 1 , The device includes a shroud 1, a generator 2, a transmission gearbox 3, an impeller hub 4, a main shaft 5, impeller blades 6, and an electrical parallel balance output device 7. A symmetrical structure is adopted, symmetrical to the center line of the impeller hub 4, and the transmission gearbox 3, the generator 2 and the shroud 1 are respectively arranged on both sides.
[0022] Compared with the traditional unilateral structure, this symmetrical structure can use the existing two sets of similar devices to increase the power and "length-to-diameter ratio" by about one time (the blades increase accordingly), effectively reducing the ineffective flow blocking area and optimizing the two-way flow. Field characteristics, and effectively realize power splitting, reducing the specifications, performance and power requirements of the transmission gearbox 3 and the generator 2, thereby reducing design and manufacturing costs. Moreover, balancing the axia...
Embodiment 2
[0028] refer to image 3 , is a special case of Embodiment 1, the number of blades of the impeller blades 6 is 2, which is convenient for batch transportation and hoisting of the impeller blades.
Embodiment 3
[0030] It is basically the same as Embodiment 1, except that the two-way blade fixed propeller is adopted at the middle hub, so that the structure is simplified and the cost is saved under the premise of ensuring two-way tidal current power generation.
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