Will the Three Gorges Dam open three holes for flood discharge?

Recently, the weather in the south is really worrying. There are heavy rains and floods in many places.

In some areas, geological disasters such as mudslides and landslides have even occurred.

Affected by heavy rainfall, the inflow of water from the upper reaches of the Yangtze River, Wujiang River and Three Gorges increased significantly.

Rainfall is mainly concentrated in eastern Guizhou, southwestern Hunan, northeastern Jiangxi and western Zhejiang.

Moreover, the accumulated precipitation is still rising, so it will continue to rain for some time in the next July.

Bian Xiao, who lives in the north, is really worried about me! ! But fortunately, we have the Three Gorges Dam.

According to the flood numbering regulations of major rivers in China, the incoming water has reached the flood numbering standard. Changjiang flood in 2020 1? Formed in the upper reaches of the Yangtze River.

So on July 2, 2020, the Three Gorges Dam opened three spillway holes to continue to increase the flow.

The flow rate of three holes is 4350 cubic meters per second.

Power generation by opening floodgates is energy utilization, but flood discharge through three holes is to solve the problem of flood accumulation as soon as possible. Moreover, the flood discharge is very dangerous, and the flood is very fast. Only three holes can be used to discharge the flood slowly.

The power generation of the Three Gorges Dam is to guide the water in the reservoir area to the turbine through the diversion tunnel in the dam to promote the turbine generator to generate electricity.

Flood discharge is a way to regulate water quantity and storage capacity, not a way to generate electricity.

The spillway gate is much higher than the turbine outlet, which is generally at the bottom of the dam.

When you see a large number of water surges under the dam, you are generating electricity.

This time, the Three Gorges Dam has opened three spillway holes, mainly for flood discharge. The inflow rate reaches 53,000 cubic meters per second, so prepare for flood control.

But we can see that the design is 23 deep spillway, but now it is only the tip of the iceberg.

So the recent continuous heavy rainfall has no effect at all, and there is no pressure on the Three Gorges Dam now.

Compared with hydropower, the Three Gorges Dam was originally designed for flood control and flood discharge, and hydropower and shipping are not so important.

Finally, I hope we can successfully overcome this difficulty and resolve the crisis.