The volute of the first million-kilowatt hydro-generator in the world started concrete pouring on May 4 at the Baihetan hydropower station.
A single hydro-generator of the set consists of 35 tubes. It is 38 meters' long and 31 meters' wide, weighs 620 tons and has a spiral curve of a maximum diameter of 8.6 meters.
The construction team has conquered the difficulties including the welding of the 800MPa high-strength steel large-diameter curves and the integral hoisting of the spiral construction socket ring since the project began in June 2018.
The world's first million-kilowatt hydro-generator set at the Baihetan hydropower station starts concreting on May 4. [Photo/sasac.gov.cn]
The concreting site at the Baihetan hydropower station [Photo/sasac.gov.cn]
(Executive editor: Li Shuling)