Cooling system of shaft system of wind generating set and wind generating set

Abstract

The invention provides a cooling system of a shaft system of a wind generating set and the wind generating set, the cooling system comprises a generator subsystem, an air tank is fixedly arranged on a tower, a water tank is fixedly arranged on the side surface of the air tank, and a first cam and a second cam can intermittently push a first piston plate and a second piston plate; the annular water bag is arranged on the central rotating shaft in a sleeving mode, a water return pipe is arranged on the side, away from the water inlet pipe, of the water storage ring in a communicating mode, an inclined part is arranged at the bottom of the hollow pipe, an air injection ball is arranged on the inclined part in a communicating mode, and branch air pipes are arranged on the air outlet pipe in a communicating mode and communicate with an aeration pipe. The aeration pipe is arranged between the water inlet pipe and the air outlet pipe. According to the shafting cooling system of the wind generating set and the wind generating set, air cooling and water cooling can be effectively combined and mutually promoted, so that the temperature of cooling water and the temperature of cooling air are both low, heat dissipation is effective, and a center rotating shaft can be rapidly cooled.

Description

technical field [0001] The invention relates to the technical field of wind power generators, in particular to a cooling system for a shaft system of a wind power generator set and a wind power generator set. Background technique [0002] Most of the wind turbines use permanent magnet direct-drive wind turbines. In order to ensure the work of the main bearing, the main bearing needs to be lubricated. At present, there are two main ways to lubricate the main bearing: grease lubrication and lubricating oil lubrication. For rolling bearings, grease lubrication is usually adopted, because compared with lubricating oil, the grease lubrication device is simpler and the grease is not easy to leak, which is convenient for the maintenance and maintenance of the bearing. However, wind turbines may be installed in coastal, Gobi and grassland areas, and the climatic conditions vary widely. If the heat generated in the main bearing cannot be effectively dissipated, and the harsh environm...

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Problems solved by technology

[0004] However, there are still relatively obvious defects in its use: 1. The above-mentioned device mainly cools and radiates the fan shaft by spraying cooling water, but such a cooling method will reduce the amount of cooling water, and frequent addition of cooling Water, and when the wind is strong, the sprayed water may be blown by the wind and splashed to other parts, causing water ingress, corrosion by water, etc.; 2. The above-mentioned device only uses water cooling to cool down, and the method is relatively simple. Make the cooling efficiency low, especially when the cooling water is used up, if the cooling water is not added in time, it will lead to the overall failure of the cooling device

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