Wind power gear box heat exchanging mechanism and wind generating set with same

Abstract

The invention discloses a wind power gear box heat exchanging mechanism. The wind power gear box heat exchanging mechanism comprises a heat exchanging assembly, an air inlet channel and an air outletchannel, wherein the air inlet channel is connected with an air inlet of the heat exchanging assembly, and the air outlet channel is connected with an air outlet of the heat exchanging assembly. The heat exchanging assembly is arranged outside a gear box and comprises a heat exchanging core body and a heat exchanging drive unit, wherein the heat exchanging core body contains a lubricating oil passage, and the heat exchanging drive unit is connected with the heat exchanging core body. The lubricating oil passage is used for enabling lubricating oil circularly pumped into the gear box through alubricating oil pump to pass through. The air inlet end of the air inlet channel is used for communicating with the exterior of a cabin through a cabin cover air inlet, and the air outlet end of the air outlet channel is used for communicating with the exterior of the cabin through a cabin cover air outlet. The invention further discloses a wind generating set applying the wind power gear box heatexchanging mechanism. According to the wind power gear box heat exchanging mechanism and the wind generating set applying the wind power gear box heat exchanging mechanism, by changing a heat exchanging gas inlet and by means of flowing of cold air outside the cabin in the heat exchanging core body, heat of the lubricating oil in the heat exchanging core body is guided out, the heat exchanging efficiency is improved, the bearing invalidation problem caused by high temperature of the gear box is avoided, the failure rate of the gear box is reduced, the reliability of the whole machine is improved, and the generating capacity of the wind generating set is guaranteed.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a heat exchange mechanism of a wind power gearbox and a wind power generating set including the mechanism. Background technique [0002] When the wind turbine is running, the gearbox will emit a lot of heat. If the heat is not exported in time, it will cause the temperature of the gearbox lubricating oil and bearings to rise, report a shutdown fault, and lose power generation; at the same time, the temperature rise will also cause Change the interference between the bearing and the gear and the bearing clearance, reduce the viscosity of the lubricating oil, and in severe cases, it will cause the bearing to slip, stick, and the gear will crack, causing the gear box to fail and causing more serious accidents. [0003] When designing the air-cooled heat exchange system of the existing domestic and foreign wind turbines, the heat exchanger is designed inside the nacelle, and the t...

AI Technical Summary

Problems solved by technology

Especially in summer, due to the high temperature in the engine room, the heat dissipation capacity of the heat exchanger is significantly reduced, and frequent shutdown failures of the gearbox due to high temperature are reported, which affects the power generation

The disadvantage of the current heat exchanger structure is not that the heat dissipation capacity of the heat exchanger is not enough, but the structure of the heat exchange system makes the heat exchanger unable to exert the maximum heat dissipation performance

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