Baihetan Hydropower Station 16 million kilowatt units have all been installed. What are the technical problems behind the project?
1, which takes a long time and is difficult.
The construction of Baihetan Hydropower Station has lasted for 1 1 year. The water in Jinsha River is very fast and the terrain is relatively dangerous. The summer temperature of Baihetan is above 43 degrees, and the surface temperature can reach 70 degrees. It's windy. There are more than 240 days of strong winds above magnitude 7 throughout the year, and the maximum wind force can reach 13. Figuratively speaking, you can say that. In addition, mudslides are prone to occur in the rainy season. Baihetan is located in Hengduan mountain area, with complex geological conditions and earthquake-prone areas around it. Therefore, it is very difficult to build such an ultra-high arch dam on such dangerous terrain, and it will face many challenges in the construction process.
2, super energy conversion
The key of hydropower station lies in energy conversion. Imagine that when the rolling river in the upper reaches of Jinsha River continuously flows into the turbine through the pressure pipeline, forming a huge vortex, driving the turbine runner to rotate at high speed, and the potential energy of water is converted into rotating mechanical energy, which is the most critical step for generating electricity for the unit. Next, the runner drives the generator rotor above the turbine to rotate at high speed, thus converting mechanical energy into electrical energy. And one million units means that a single unit can generate at most 1 10,000 kilowatts of electricity per hour when it is running at full load. Take Deyang City, Sichuan Province, where Dongdian is located, for example, one million units can generate electricity for 365 days, which can meet the electricity demand of Deyang City for a whole year.
Postscript: what you see is that the hydropower station is desperately releasing water, but it is actually in? Is limiting flux waterproof for the higher that the downstream can bear? Waves of floods were put into the stomach, thus avoiding it? Unbearable flood downstream? What is this effect called in water conservancy? Peak cutting? . What's the story? How can there be a quiet time, just because there is a big reservoir for the downstream to bear silently?