Wind turbine generator gearbox lubricating oil integrated heat dissipation device and control method

Abstract

The invention discloses a wind turbine generator gearbox lubricating oil integrated heat dissipation device and a control method. The heat dissipation device comprises a heat exchanger and a controller, wherein the heat exchanger is provided with a lubricating oil heat exchange channel, the heat exchanger is arranged in a box body with the periphery closed, the top end and the bottom end of the box body are open, an axial flow fan is installed at an opening of the top end of the box body, an opening of the bottom end serves as an air inlet, the axial flow fan is electrically connected with the controller, a temperature sensor used for detecting the oil temperature at an oil inlet of the lubricating oil heat exchange channel is arranged at the oil inlet, and the lubricating oil heat exchange channel is divided into at least two stages of temperature control adjusting areas. A part of the temperature control adjusting areas are provided with temperature sensors used for detecting the oil temperature of the areas, the tail ends of the part of the temperature control adjusting areas are provided with three-way valves, the three-way valves are externally connected with branch pipes directly communicated with an oil outlet, and the controller is electrically connected with the temperature sensors and the three-way valves. The heat dissipation device is compact in structure and convenient to install; and multi-stage control and adjustment can be carried out according to needs, and the heat exchange efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of wind power generation equipment, and in particular relates to a lubricating oil integrated cooling device for a gearbox of a wind turbine and a control method. Background technique [0002] As the international community pays more and more attention to issues such as ensuring energy security, protecting the ecological environment, and addressing climate change, renewable energy has become the focus of the development of the global energy industry. Many countries have achieved positive results by formulating policies and regulations for the development of renewable energy to promote the transformation of their domestic energy structure to clean and low-carbon. Wind power also plays a pivotal role in my country's power industry. [0003] One reason for the high failure rate of wind turbines is that the low working efficiency of the air-cooled radiator causes the oil temperature of the gearbox to rise, and t...

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Problems solved by technology

[0009] The purpose of the present invention is to provide a wind turbine gear box lubricating oil integrated heat dissipation device and control method to solve the problem of unsatisfactory cooling effect, large space occupation and low heat exchange efficiency of the heat dissipation device used in the wind turbine gearbox in the prior art. Problems with low and high maintenance costs

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