At 10:30 a.m. on March 5, the runner of the first (No. 2) unit of Yangqu Hydropower Station of Yellow River Company was successfully hoisted, marking that Unit 2 of Yangqu Hydropower Station has fully entered the stage of hydro turbine and laid a solid foundation for the power station to achieve the goal of putting into operation on schedule.
Yangqu Hydropower Station is the first 800 kV "Qingyu DC" UHV transmission channel in China to support the peak shaving power supply and Hainan Tibetan Autonomous Prefecture tens of millions of kilowatts of new energy base important support power supply, after the completion of the power station, will effectively ensure the "Qingyu DC" UHV transmission channel full load power transmission, to promote the province's new energy large-scale development and application and build the Yellow River upstream clean energy base to provide strong support.
The runner is the core component of the hydro-generator set to generate electricity, and is known as the 'heart' of the hydro-generator set. The runner of this hoisting is assembled and welded by the upper crown, the lower ring and 15 blades, with a maximum diameter of 637 meters, 329 meters, the total weight of hoisting is about 114 tons, and the hoisting took 52 minutes to complete. Yang Yunfeng, director of the Yangqu Preparatory Office, said.
At present, the dam project, water diversion system, plant engineering, spillway and flood discharge hole of Yangqu Hydropower Station are in the critical stage of water storage in the lower gate, and ecological protection projects such as ecological water release hole, fish lifting machine system, fish breeding station, and tamarix protection are being fully promoted as an important part of the construction of hydropower station projects.
In order to ensure that the power station is put into operation on schedule, during the Spring Festival, we will continue to carry out operations on the mechanical and electrical installation, temporary ecological discharge hole, downstream river dredging and other projects that affect the water storage of the lower gate, and the remaining grouting and gold knot installation are steadily advancing. Duan Junbang, member of the Party Committee and deputy general manager of the Engineering Construction Branch, said.
Yangqu Hydropower Station is located at the junction of Xinghai County and Guinan County, Hainan Prefecture, is a major project of Qinghai Province and the State Power Investment Corporation, is a first-class large ( ) type project, the first in China to use inlaid concrete panel rockfill dam, can reduce the amount of toe plate foundation excavation in narrow river valleys, and effectively reduce the settlement and deformation of panel rockfill dam, providing practical experience for the construction of 300-meter high panel rockfill dam in China. The power station is equipped with three 400,000 kW francis turbine generator sets, with a capacity of 1.2 million kW and an average annual power generation of 473.2 billion kWh, equivalent to saving about 1.66 million tons of standard coal per year.
Xihaiquan** reporter Zhou Jianping correspondent Fan Guodong (text).