Wind power generator capable of automatically cooling by adopting air circulation system and cooling method for wind power generator

Abstract

The invention discloses a wind power generator capable of automatically cooling by adopting an air circulation system and a cooling method for the wind power generator and belongs to the technical field of wind power generation. The wind power generator comprises a blade wheel (1), a low speed shaft (2), a first-grade gear box (3), a high speed shaft (5), a generator (9), other heating parts (12)and a cooling system and is characterized in that: the cooling system consists of a second-grade gear box (14), a first transmission shaft (4), a gas compressor (6), a second transmission shaft (7), a worm wheel (8), a third transmission shaft (19), a fan (18), a gas filling nozzle (17), a filter (16), a gas storage tank (15), a first radiator (10) for radiating the generator (9), a second radiator (11) for radiating the other heating parts (12), and a third radiator (20) for radiating compressed gas. Compared with the conventional cooling system for the wind power generator, the cooling system has outstanding advantages of simple structure, small volume, light weight, high reliability, simpleness of installation and maintenance and the like.

Description

Technical field [0001] The invention relates to a self-cooling wind power generator adopting an air circulation system, which belongs to the technical field of wind power generation. Background technique [0002] With the advancement of science and technology and the adjustment of the national energy strategy, as the main way of renewable energy utilization, wind power has become an important part of the national energy supply. The wind turbine with a single capacity of MW has become the main trend of wind power development. The heat generation of wind turbines has also increased from tens of kilowatts to hundreds of kilowatts, which puts forward increasingly stringent requirements on the cooling system, and has become one of the technical problems hindering the development of wind turbines with larger capacity. Although the research on wind turbine cooling technology has made great progress in recent years, some new cooling methods have initially emerged, such as the wind t...

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Problems solved by technology

Although the research on wind turbine cooling technology has made great progress in recent years, some new cooling methods have initially emerged, such as the wind turbine with evaporative cycle cooling proposed in patent ZL200610039658.9, and the centralized cooling proposed in patent ZL200610097464.4 type wind power generator system, the wind power generator using solar jet cooling proposed by the patent ZL200810195077.3, etc. Although these technologies can solve the problem of cooling capacity, the technology is not yet mature and the implementation is difficult, and it is the same as the traditional cooling system. The volume of the equipment is very large, which brings great difficulties to the height, load-bearing, transportation, installation and maintenance of the cabin

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