Self-driven salt mist-prevention device for offshore wind power bearing

Abstract

The invention discloses a self-driven salt mist-prevention device for an offshore wind power bearing. The main shaft near-hub flange end, main shaft near-gear box end, high-speed output shaft near-generator end and high-speed output shaft near-generator end of a wind turbine are provided with salt mist-prevention structures; an impeller, near a bearing pedestal / shell coaxially and fixedly sleevesa main shaft; a semi-closed cover is arranged outside the impeller; one end of the outer ring of the semi-closed cover is fixedly connected to the bearing pedestal / shell, and the other end of the outer ring of the semi-closed cover is folded towards the axis of the main shaft after crossing the impeller so as to form the inner ring; a gap is formed between the semi-closed cover and the main shaft;a through hole is formed in the side, far away from the bearing pedestal / shell, of the semi-closed cover; and the impeller blows air to the through hole to generate air far away from the bearing pedestal / shell. With the device of the invention adopted, the situation that the service life of the offshore wind power bearing is shortened due to the fact that the offshore wind power bearing is easilyeroded by salt mist is alleviated; bearing replacement cost is reduced; the bearing replacement time of a wind driven generator is shortened; and self-driving is achieved, so that an additional powersource is not needed.

Description

technical field [0001] The invention relates to an anti-salt spray device for an offshore fan in the technical field of wind power equipment, in particular to a self-driven offshore wind power bearing anti-salt spray device. Background technique [0002] Due to the extensive use of non-renewable energy such as coal and oil and the resulting environmental pollution, the development and utilization of wind energy, a clean and renewable energy, has attracted more and more attention from various countries. [0003] The utilization technology of wind energy is relatively mature, and there are many models to choose from in the market. And compared with onshore wind energy, offshore wind energy resources are more abundant. my country has a vast sea area, and the utilization of offshore wind energy is very important. The development of offshore wind power can effectively improve the power shortage in eastern coastal areas and avoid the long-distance transmission of onshore wind powe...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the bearings of the existing offshore wind power will still be eroded in the environment of high salt spray, and in order to solve the problem that there is no device in the existing wind power equipment that can effectively protect the bearings, the purpose of the present invention is to provide a self-driven offshore Anti-salt spray device for wind power bearings, additional impellers and semi-closed covers are installed to realize self-driven anti-salt spray

Images