Liangshan: On the Jinsha River, the major power of the country continues to empower the green development

The collision of Dashan and Okawa has created the world's attention, and the wave of hydropower development has made Jinsha River the most lively "battlefield" on this vast land.

The Jinsha River flowing through Liangshan is distributed from top to bottom with three giant hydropower stations in Wudongde, Baihe Beach, and Xiludu. Bote high arch dam. Xi Luotu Hydropower Station, 4723 concrete thermometers, 24,000 meters of temperature metering fiber embedded in the dam body, giving the hydropower station a intelligent sense. Baihetan Hydropower Station, the maximum power of the global single -machine capacity of one million kilowatt water wheel generator sets, and a number of technical indicators are at the forefront of the world.

The stunned landscape dams are towering, and these major powers show the infinite charm of the top science and technology to the world. The Pentium riverside day and night endlessly turned into green power, providing strong support for the "Western East Transmission", and made important contributions to the achievement of carbon peaks, carbon neutrality and the goal of carbon peaks, carbon neutrality, and promoting the comprehensive green transformation of economic and social development.

The Xiluo Hydropower Station, Gaoxia out of Pinghu. Photo by Tang Xiaojun

Xi Luotu Hydropower Station

Economic benefits and social benefits of the same frequency resonance

At 13:15 on June 2, 2022, the cumulative production of clean electricity stations at the Xiludu Hydropower Station exceeded 500 billion kWh, which is equivalent to about 152 million tons of standard coal and a reduction of carbon dioxide by about 416 million tons.

The Xiluo Hydropower Station is located on the Jinsha River in Leibo County, Liangshan Prefecture and Yongshan County, Yunnan Province. It is the first hydropower station launched by the lower reaches of the Jinsha River. From the official start in December 2005, the interception was achieved in 2007, in July 2013, the first unit was connected to the grid to generate electricity, and in June 2014, the 18th machine groups were put into operation, and the total installation machine was 13.86 million kilowatts of Xiludu water power stations. The fourth largest hydropower stations in the Three Gorges Hydropower Station, the Ether Hydropower Station and the Baihetan Hydropower Station were completed.

Since 2016, Xiludu Hydropower Station has been generating more than 60 billion kWh in four consecutive years. Based on the 2017 full social electricity consumption (6307.7 billion kWh) announced by the National Energy Administration, it is equivalent to 100 degrees of electricity every China. About 1 degree came from Xiludu.

Xiludu panorama. Yang Lin Photo

The left and right bank power stations of Xi Luotu Hydropower Station were scheduled by the State Power Grid and Southern Power Grid, respectively. They were mainly sent to Zhejiang and Guangdong, respectively, and took into account the needs of electricity consumption in Sichuan and Yunnan. In addition to power generation benefits, the Xiludu Hydropower Station also takes into account the comprehensive benefits of flood prevention, sand blocking, improving the navigation conditions of the warehouse area and the bottom of the dam.

The Xi Luotu Reservoir has a flood -prevention reservoir of 4.65 billion cubic meters, which is an important part of the Yangtze River flood control system. In terms of sand blocking, after calculation, after 30 years of running the Xi Luotu Hydropower Station, it can reduce 5.884 billion tons of downstream sand loss, accounting for 80%of the amount of sand in the same period. The long -term use and comprehensive benefits of the Three Gorges Reservoir play an important role in promoting the efficiency of the Three Gorges projects.

The construction of Xi Luotu Hydropower Project not only changed dramatically in Xiluo Canyon, but also nearby residents also enjoyed the development bonus of the Xiluo Hydropower Station. The Xiludu project has more than 370 kilometers of new roads in the reservoir area, making the local people's transportation more convenient and safe; 13 new sets of new collective towns have increased the local urbanization rate by 2.5%; helping 61,000 immigrants get rid of poverty and become rich; The cumulative investment of immigration funds is about 2.3 billion yuan, an average annual increase of local fiscal revenue of 2.7 billion yuan, and the living standards of the people in the 200,000 warehouses have been significantly improved.

The right bank of the Baihetan Hydropower Station hangs. Photo by Zhang Yong

Baihetan Hydropower Station

The pinnacle of the world's hydropower construction on the independent innovation station

On May 20, 2022, the installation of 16 million kilowatt units in the Baihetan Hydropower Station was completed, and the final sprint was launched to the full production target. On May 30, the Baihetan Hydropower Station 5 successfully passed the 72 -hour trial operation and officially put into production power generation, marking that the 16 million kilowatt water wheel generator sets of the Baihetan Hydropower Station have been put into production.

The Baihetan Hydropower Station is located on the Jinsha River at the junction of Ningnan County, Liangshan Prefecture and Qiaojia County, Yunnan Province. It is a major national project that implements the "West Electric East" with a total installed capacity of 16 million kilowatts. After the completion of the comprehensive completion, it will become the world's second largest hydropower station second only to the Three Gorges Power Station. The average annual power generation is expected to be 62.43 billion kilowatt -hours, and the annual standard coal consumption will consume about 19.68 million tons, reducing carbon dioxide emissions by about 52 million tons, which will play a positive role in achieving carbon peaks, carbon neutralization and targets in my country.

Many technical indicators of Baihetan Hydropower Station are at the forefront of the world, representing the highest level of water and electricity construction in the world. Eight machines that were installed before were less than 0.1 mm, creating a record of the installation history of millions of kilowatts of hydropower units. In addition, the single -machine capacity of the Baihetan Hydropower Station is 1 million kilowatts, which is the world's largest single -machine capacity. Hydropower peak.

Workers on the Baihe Beach Dam are under construction. Photo by Xie Lei

In order to build a seamless dam, the Baihetan Hydropower Station is the first time in the world that uses low -thermal cement in hydropower projects in the world. At the same time, it continuously optimizes and improves the temperature control process method, and uses intelligent temperature control technology to achieve precise control of the entire process of concrete temperature.

The underground project of the Baihetan Hydropower Station is huge. Factory buildings, water traffic inflow systems, flood discharge systems, and transportation networks are staggered inside the mountains on both sides of the Jinsha River, forming the world's largest aquatic underground cave group. The total amount of excavation of 25 million cubic meters is equivalent to 10 Hoff pyramids. The scale of underground factories is huge, with 438 meters long and 88.7 meters high. It is currently the largest gallery underground cave. The difficulty of controlling the stability of the blasting excavation and the stability of the surrounding rocks is the second to none worldwide. The scale of non -pressure flood cave is very large, reaching the world's first. The three flood caves are arranged straight on the left bank, with a maximum amount of water leakage of about 12,000 cubic meters per second, and the world's number one side is first. If these numbers are only boring data, but telling you that you can fill the entire West Lake with only 19 minutes, you must be shocked.

It is not surprising to refresh the world record. It is not surprising here. The Baihetan Hydropower Station not only witnessed the prosperity and rise of my country's hydropower construction, but also showed China's strength with independent innovation.

Gorgeous Wudongde Hydropower Dam. Photo by Leng Wenhao

Wudongde Hydropower Station

Create 8 "world first" and 15 "the first time in the world"

The Wudongde Hydropower Station is the first step of the four water elevator grades of the river section of the Jinsha River Hydropower Base. It is also the seventh and fourth largest hydropower stations in the world. On the Jinsha River. On June 29, 2020, the first unit of Wudongde Hydropower Station was officially put into production. On June 16, 2021, all units of Wudongde Hydropower Station were officially put into production.

Since the beginning of the relevant units in 2011, the national heavy weapon of Wudongde Hydropower Station began to continue to innovate on the steep Jinsha River shore, creating 8 "world first" in the world's thinnest 300 -meter -level special high arch dam. Create 15 "first time" such as the whole dam using low -thermal cement concrete, and eight "hydropower engineering breakthroughs" such as flood prevention responsibilities in the construction period of the project, overcome the excavation of large -volume concrete temperature control and cracking, and large -scale underground cave groups. A series of world -class problems such as 800 MPa high -strong steel welding, and achieved the "double zero" goal of quality and safety for many years ...

Wudongde Hydropower Station. Photo by Leng Wenhao

The world's leading new materials and new technologies have provided solid guarantee for the establishment of a new era in the new era. The Wudongde Hydropower Station has the thinnest 300 -meter -grade special high arch dam today. The dam is 270 meters high. However, it can withstand more than 8 million tons of external forces.

After all completion, as a giant hydropower station on the upper reaches of the Yangtze River, the Wudongde Hydropower Station played a flood prevention effect. In 2020, the Wudongde Hydropower Station, which was first stored for the first time, was actively invested in flood prevention and flooding in accordance with the unified dispatch of the Yangtze River Water Conservancy Committee in the middle and lower reaches of the Yangtze River. There is a flood control database of Wudongde Hydropower Station of 2.44 billion cubic meters. On the eve of the flood season each year, the water level will be reduced from a normal water storage level of 975 meters to the limited water level of 952 meters during the flood period. Essence

From June 2020 to the end of April 2022, the cumulative power generation of Wudongde Hydropower Station exceeded 60 billion kilowatt -hours, which is equivalent to saving standard coal of 18.38 million tons and a reduction of 50.28 million tons of carbon dioxide. This giant hydropower station in southwestern China is running day and night, providing a steady stream of strong momentum for promoting China's green development.

Text/Reporter Yang Yan Li Youming, Reporter of Liangshan Daily

Edit/Yang Xiaoqiong

Editor -in -chief/Li Jie

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