A counter-rotating propeller ocean current power generation device using a magnetic coupling

Abstract

The invention discloses a counter-rotating propeller sea current energy generating device using a magnetic coupling, which includes a housing, a counter-rotating impeller, a steering and yaw device, a magnetic coupling device, a mechanical speed change device and a generator device; The impeller is installed at the front end of the power generation device. The blades rotate around the central axis under the impact of the incoming flow, and generate a tangential force that drives the rotation of the rotating shaft. The two sets of blades transmit the torque to the input end of the magnetic coupling through the inner and outer shafts respectively. The magnetic coupling adopts the push-pull coupling transmission method of permanent magnets arranged in different poles, and uses the combination of axial coupling and radial coupling to realize the non-contact transmission of the torque of the counter-rotating shaft from the outside of the power generation device to the inside of the power generation device . The mechanical speed change device performs torque coupling on the counter-rotating torque, realizes single-axis output and uses a gear mechanism for speed change. The inner rotor of the generator is connected with the mechanical transmission device and rotates with it, and realizes the movement of cutting the magnetic induction line with the outer stator to generate electricity. The invention has compact structure and high kinetic energy conversion rate.

Description

technical field [0001] The invention belongs to the field of ocean current power generation, and in particular relates to a counter-rotating propeller ocean current power generation device using a magnetic coupling. Background technique [0002] Energy is the key factor for the development of human society, and fossil energy is a non-renewable energy. In order to realize the sustainable development of human society, countries all over the world are focusing on the development and utilization of renewable energy, and ocean current energy is one of them. Ocean current energy utilizes the kinetic energy of the directional flow of seawater, which has the characteristics of strong predictability, high energy density, clean and renewable, and less affected by wind and waves. At the same time, my country's ocean current energy reserves are abundant, and its development and utilization potential is huge. If the ocean kinetic energy is converted into electric energy in the seabed ob...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems that the existing ocean current power generation device cannot adapt to complex sea conditions, low energy conversion efficiency, large sealing loss, and complex coupling structure and difficult sealing during torque transmission, the present invention proposes a permanent magnet, through magnetic force A counter-rotating propeller sea current power generation device that realizes counter-rotating power transmission by means of coupling transmission

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