Calculation and Analysis of Ventilation and Temperature Rise Conjugate in the Top Cover of the Hydro Generator
This article focuses on the ventilation and heat transfer problem inside the top cover of a hydroelectric power station's hydroelectric generator.A numerical study was conducted on the conjugate calculation of ventilation and temperature rise inside the top cover of the hydroelectric generator.The influence mechanism of different ventilation structures,wind pressure,etc.on the cooling and heat transfer inside the top cover was analyzed,as well as the gas flow law and heat transfer mechanism inside the top cover.A structural scheme to improve the ventilation and cooling effect inside the top cover was proposed.Research has shown that setting a reasonable number of holes on the side of the top cover(reducing the number of holes)and arranging the distance between the dust cover and the collector ring(increasing the distance)are beneficial for ventilation and cooling,reducing the temperature of the collector ring and carbon brush.Ensure the safe operation of the unit.
万方数据
维普
