Why was the Three Gorges Power Station built, and why the Three Gorges Hydropower Station was built

To put it simply, it can effectively control flooding in the middle and lower reaches of the Yangtze River, and can also reasonably store water to fight drought.

The Three Gorges Reservoir was built in Yichang, which is the dividing line between the upper and middle reaches of the Yangtze River. As the largest river in China, the Yangtze River has a large and stable water flow, which is conducive to power generation. The geological structure of the Three Gorges area is stable (it is not easy to occur natural disasters such as ** and landslides, which provides a favorable guarantee for the construction of the Three Gorges Dam.

The site of the Three Gorges Dam initially included a number of candidate dam sites such as Nanjinguan, Taipingxi, and Sandouping. The finally selected Sandouping dam site is located 38 kilometers upstream of Gezhouba Hydropower Station, with open terrain and hard granite geological conditions, with low intensity.

There is a sandbar in the middle of the river, which divides the Yangtze River into two, the left side is about 900 meters wide Dajiang and the small hill Tanziling on the bank of the river, and the right side is about 300 meters wide Houhe, which can provide convenience for phased construction.

The purpose of building the Three Gorges Dam is: flood control, power generation, shipping, aquaculture, tourism, south-to-north water diversion, water supply and irrigation, etc. The Three Gorges Project is by far the world's largest water conservancy project with the largest comprehensive benefits, and it is bringing into play tremendous benefits in flood control and shipping.

After the completion of the Three Gorges Dam, a 600-kilometer-long reservoir was formed, which was used to store water in stages, becoming a rare new landscape in the world.

After the completion of the project, the normal water storage level of the reservoir is 175 meters, the flood control reservoir capacity is 100 million cubic meters, and the total reservoir capacity reaches 39.3 billion cubic meters, which can give full play to its key backbone role in the flood control system in the middle and lower reaches of the Yangtze River, and will significantly improve the 660-kilometer channel from Yichang to Chongqing on the Yangtze River, and the 10,000-ton fleet can go directly to Chongqing Port, which will give full play to the ten major benefits of flood control, power generation, shipping, aquaculture, tourism, south-to-north water diversion, water supply and irrigation, etc., which is incomparable to any giant power station in the world.

When the Three Gorges Reservoir is in operation, the capacity of the flood control reservoir is 100 million cubic meters, and the reservoir can reduce the peak flood flow by 27,000-33,000 cubic meters per second, which is the largest water conservancy project in the world.

The Three Gorges Reservoir will return water to Chongqing, an important city in the southwest, and it will improve the shipping mileage by 660 kilometers, and increase the annual one-way navigation capacity from 10 million tons to 50 million tons. The Three Gorges Project is the world's most significant first pivotal project to improve shipping conditions, and it deserves to be called a well-deserved project.

The Three Gorges Dam converts electricity from hydropower to electricity.

Hydro energy actually refers to gravitational potential energy, when a dam is built to store water, a large amount of gravitational potential energy is stored. Open a gate on the dam and install a generator.

The flow of water out of the gate causes the turbines of the generator to rotate, which converts the gravitational potential energy into kinetic energy. A generator is a mechanical device that converts kinetic energy into electrical energy, which converts the gravitational potential energy of water into electrical energy.

The Three Gorges Dam is equipped with many hydro turbines, and when the water flows through the turbines, the rotating shaft of the turbine drives the rotor of the generator to convert water energy into mechanical energy, and convert mechanical energy into electrical energy and output.

The Three Gorges zone has a large drop, relying on hydroelectric power generation, that is, water falls from the altitude and converts potential energy into kinetic energy, and then into electrical energy.

Water drives the water wheel to rotate and converts the potential energy of the water into mechanical energy, and the water wheel drives the generator to convert the mechanical energy into electrical energy.

Seven hundred miles from the Three Gorges, the two sides of the strait are connected with mountains, and there is no place to go. Heavy rocks are stacked, hidden from the sky. As for the Xiashui Xiangling, it is blocked along the trace, or the king's order is urgently announced, sometimes the white emperor is sent to the court, and the twilight arrives in Jiangling, during which it is 1,200 miles, although it is run to the wind, it is not a disease.

The previous sentence explains the Three Gorges: the canyon is long (700 li), the river channel is narrow (hidden from the sky), and the two banks are continuous, which is suitable for the construction of high dams and large reservoirs, which are necessary geographical and geological conditions for large-scale hydropower projects.

Hanging Spring Waterfall, flying in the meantime.

Xiashui Xiangling, along the traceability blocked. Or the king's order is urgently announced, sometimes the white emperor is sent to the court, and the twilight goes to Jiangling, these two sentences show that the terrain of the Three Gorges is steep, the drop is huge, and the flow speed is very fast through the boat line to go down to Jiangling for a day, and it can be seen that the flow rate and the conditions of the drop are very fast, and it is suitable for hydropower generation.

(1) Xiangling in summer water, blocking along the speed Reason: The water volume soars in summer, and there is a lot of power generation.

2) Or the king's order is urgently announced, and the white emperor is sent to the court Reason: The speed of water flow is fast, which is conducive to power generation.

It is in the first and second tiers, with a large drop and abundant water resources.

Categories: Society Culture >> Social topics.

Problem description: I want a good reason.

Analysis: Why build the Three Gorges Project?

1: The primary goal is flood control: The Three Gorges Water Conservancy Project is a key backbone project in the flood control system in the middle and lower reaches of the Yangtze River.

Its geographical location is strategic, which can effectively control flooding in the upper reaches of the Yangtze River. Through the Three Gorges Reservoir, the flood control standard of the Jingjiang River section can be raised from the current once in 10 years to once in 100 years.

2: Provide renewable energy: The Three Gorges Hydropower Station has a capacity of 18.2 million kilowatts, which will provide reliable, cheap and clean renewable energy for the economically developed and energy-deficient regions of Eastern, Central and Southern China.

3: Improving the Yangtze River waterway from Yichang to Chongqing: The Three Gorges Reservoir will significantly improve the 660-kilometer Yangtze River waterway from Yichang to Chongqing, with a 10,000-ton fleet of ships directly reaching the port of Chongqing.

From 1994 to 2009, a total of 15 years.

The Three Gorges Hydropower Station is the largest hydropower station in the world and the largest construction project ever built in China. The relocation and environmental problems caused by it have always been accompanied by huge controversies from the moment it was first prepared.

The Three Gorges Hydropower Station has more than 10 functions, such as shipping, power generation, planting, and so on. The Three Gorges Hydropower Station was approved by the National People's Congress of China in 1992, officially started construction in 1994, began to store water for power generation on the afternoon of June 1, 2003, and was completed in 2009.