Transverse-shaft tidal current energy water turbine with passive pitching adjusting device
A technology of pitch adjustment and water turbine, which is applied in the direction of safety devices, engine components, machines/engines, etc., can solve problems such as reduced efficiency, and achieve the effects of improved efficiency, simple structure, low installation and maintenance and use costs
Active Publication Date: 2020-08-14
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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Problems solved by technology
[0004] However, when the transverse axis tidal energy turbine obtains energy from the tidal current, its efficiency will be reduced because the direction of the tidal current is not perpendicular to the sweeping plane of the turbine blades
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[0042] In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.
[0043] Such as figure 1 As shown, the horizontal axis tidal current energy turbine containing the passive pitch adjustment device provided by the present invention includes a generator, a turbine blade 1, a hub 2, a vertical bracket 3, a cabin bracket 4, a cabin connecting shaft 6, a cabin 7, and a connecting rod 8 , Adjust the blade 9 and the counterweight. Wherein, the nacelle bracket 4, the nacelle connecting shaft 6, the connecting rod 8, the adjusting vane 9 and the counterweight together form a passive pitch adjustment device.
[0044] The hub 2, the nacelle 7 and the connecting rod 8 are detachably fixedly connected in turn, and the axes of the hub 2, the nacelle 7 and the connecting rod 8 are on the same horizontal line, forming the main shaft of the t...
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Abstract
The invention belongs to the technical field of transverse-shaft tidal current energy water turbines and particularly relates to a transverse-shaft tidal current energy water turbine with a passive pitching adjusting device. The transverse-shaft tidal current energy water turbine comprises water turbine blades, a hub, an engine room and the passive pitching adjusting device; the water turbine blades are fixedly connected with a first end of the engine room through the hub, and the hub, the engine room and the passive pitching adjusting device are positioned on the same horizontal line to forma main shaft; the passive pitch adjusting device comprises a connecting rod, adjusting blades and a counterweight which is positioned in the adjusting blades and used for adjusting the weight of the passive pitch adjusting device, the first end of the connecting rod is fixedly connected with the second end of the engine room, and the second end of the connecting rod is fixedly connected with the adjusting blades; and the adjusting blades are a closed structure which is composed of a plurality of wing surfaces and used for generating lift force, and the transverse-shaft tidal current energy water turbine is kept in a balanced state by changing the structure of the adjusting blades and the weight of the counterweight. The swept plane of the water turbine is always vertical to the incoming flow direction, and the energy utilization efficiency of the tidal current energy is improved.
Description
technical field [0001] The invention belongs to the technical field of horizontal-axis tidal energy water turbines, in particular to a horizontal-axis tidal energy water turbine with a passive pitch adjustment device. Background technique [0002] Energy is a necessity of our life and a strategic resource for national development. Since fossil energy is limited and will produce a lot of pollution in the process of consumption, it is imperative to develop and utilize various forms of renewable energy. [0003] Tidal current energy is a kind of clean renewable energy, which has the characteristics of large reserves, good predictability and high energy density, and is an ideal resource to replace fossil energy. Among them, the horizontal axis tidal current energy turbine is a device that utilizes tidal current energy, which can convert the tidal current energy into the kinetic energy of the water turbine, and then convert it into electrical energy. [0004] However, when the ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F03B13/26F03B15/00
CPCF03B13/264F03B15/00F05B2220/706Y02E10/30
Inventor 陈三木万敏平
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA