Chapter 271 Symposium
January 18.
Wan Gaofeng, who rushed back from Minqin Base, met with Huang Qinxin and others who had already arrived in advance.
The symposium was held in Yichuan County, Qin Province.
The venue is located inside the Hukou Waterfall Scenic Area.
Even in the snow and ice, Hukou Waterfall still flows continuously, but the amount of water in winter is much smaller and does not have the majestic momentum of spring and autumn.
A person in charge of the organizer was very concerned about Hailufeng Company behind Blue Whale Airship Company. Therefore, as soon as Wan Gaofeng arrived, he immediately came to greet him: "Hello, Mr. Wan, I am one of the leaders of this symposium. Li Guowei, I am very happy to meet you."
"Hello, Mr. Li." Wan Gaofeng also responded in a formulaic manner.
Li Guowei brought Wan Gaofeng to introduce to him some of the more important guests in this symposium.
"This is Academician Zhang, who has made outstanding achievements in hydrology, water resources, water conservancy engineering and other fields."
"Hello, Academician Zhang, I am Wan Gaofeng, I have been famous for a long time."
The two shook hands, and then Academician Zhang shook his head with a smile: "President Wan is polite."
Li Guowei, who was standing beside him, continued to introduce: "President Wan, this is Academician Hu, who is mainly engaged in research on sediment kinetic mechanics, riverbed evolution and river channel improvement. He has in-depth insights into sediment problems in water conservancy projects and is also the main researcher of sediment silt problem in the Yellow River."
Wan Gaofeng stretched out his hand: "Hello, Academician Hu, it is very honored to know you."
Academician Hu knew that Jiang Miao was behind the Blue Whale Airship Company, so his expression became more enthusiastic. While shaking hands, he said: "President Wan, your parent company's new water purification equipment is a powerful tool for the management of the Yellow River in the future. We will communicate more later."
"Haha, I learned more from Academician Hu." Wan Gaofeng didn't dare to be proud. "Mr. Wan, this is Academician Wang. He has been engaged in hydrological and water resources research for a long time and has made important contributions to the allocation of water resources in water conservancy projects." "Hello, Academician Wang."
Everyone greeted for a few minutes.
Academician Hu couldn't wait to speak, "Mr. Wan, we speak freely for this symposium and have no worries. No matter whether we can reach a result, we will not let down the invitation of this symposium."
"This time I came here, I was actually here to promote the gondola airship that our company has been experimenting recently." Wan Gaofeng did not hide it and went straight to the point.
Academician Wang, who was standing by, lifted his glasses: "Oh? I read the report on the situation of that airship. I heard that a ship with a capacity of 2,750 tons can be lifted?"
"Yes, the Blue Whale 3 airship can be lifted up to 2,750 tons. We have cooperated with Jiangxin Shipyard to build five experimental transport ships. The overall structure is strengthened by new materials, so that the hull structure will not be damaged during transportation." Wan Gaofeng said while taking a stack of documents from his assistant and then distributing them to the people present.
After taking the document, Academician Hu looked through it for a while, and then he asked, "Mr. Wan, can this gondola work only use a new ship?"
Wan Gaofeng nodded: "Old inland transport ships can also be hung empty ships, but if we test it under full load, we found that the steel structure will be deformed to varying degrees, unless the cargo on the ship is reduced to about 1,200 tons, it will only barely reach a relative safety threshold."
"So that's it. It seems that a new type of transport ship is better."
"Yes!"
Talk about transport ships and airships for a while.
Li Guowei, who was standing by, took the opportunity to raise the topic: "Mr. Wan, if an airship crane is used, then the Shanxi-Shaanxi Grand Canyon may be fully opened to navigation in the future. I wonder what your company thinks about this project?"
"What do you think." Wan Gaofeng paused for a moment, then pointed to the Hukou Waterfall in the distance: "Although airships can reject some natural and artificial obstacles, the water in the Yellow River is still not enough!"
"In fact, due to the construction of a large number of step hydropower stations in the Yellow River in the Shanxi-Shaanxi Grand Canyon section, the water depth can reach about 5 meters to 15 meters, and some river sections can even reach 15 meters to 25 meters, which can basically meet the navigation of 2,000-ton inland transport ships." Academician Wang, who is engaged in hydrology research, explained. Wan Gaofeng expressed his thoughts: "The problem I am worried about is that the water volume of the Yellow River is unstable." "Haha, Mr. Wan, don't worry." Academician Hu laughed, and then he explained: "I just mentioned the water purification equipment of your parent company, which can actually solve part of the water resources in the middle reaches of the Yellow River." "Oh? I hope to hear it carefully." Although Wan Gaofeng guessed something, he pretended not to know.
Academician Hu did not make a fool of himself, but explained to Wan Gaofeng and others: "Recently, our Academy of Engineering and the Academy of Sciences have taken on several topics, which are to study scientific research projects that intercept the Yellow River."
"Intercept the Yellow River?"
"Yes, it is intercept the Yellow River." Academician Hu looked at Hukou Waterfall with floating ice: "In recent years, the Yellow River has entered the sea every year by about 30 billion cubic meters, and the data monitored by Huayuankou shows that about 55 billion cubic meters of fresh water is injected into the downstream every year."
Give everyone a little time to think.
After a while, Academician Hu continued: "Therefore, it is planned to leave the water from the middle reaches of the Yellow River, and then build an overhead self-flowing water pipeline from near the sea estuary to inject it into the Yellow River every year."
"This..."
"How to solve the silt in the middle reaches?"
"Ecological problems need to be considered!"
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"Although 55 billion cubic meters of fresh water can be intercepted, hundreds of millions of tons of silt are indeed a big problem."
"However, doing so can indeed form a series of artificial lakes in the middle reaches of the Yellow River, and even change the local climate between Qin and Jin."
"The ecological risk is too great, you need to think clearly!"
Everyone discussed fiercely.
Some people think that the benefits outweigh the disadvantages, while others think that the disadvantages outweigh the advantages.
The two most critical issues are silt and ecological problems.
After all, the middle stream does not transmit water to the downstream, and the silt will soon be deposited in the river channel, which is the lesson of the construction of the Sanmenxia Hydropower Station.
When the Sanmenxia Hydropower Station was originally designed, the silt rate of the Yellow River silt was insufficient, resulting in the continuous silt of silt in the reservoir area, which not only raised the water level, but also increased a lot of risks.
Although the governance of the Loess Plateau is now very perfect and has greatly reduced the silt content in the middle reaches of the Yellow River, a large amount of silt will still be discharged into the downstream every year.
For example, Sanmenxia has to discharge about 230 million tons of sand downstream every year.
If you suddenly stop draining sand downstream, the consequence will be that the reservoir area will quickly accumulate. It is estimated that the entire reservoir area will be filled in less than ten years.
This is also the focus of the discussion at this symposium on the Yellow River Navigation.
The middle reaches of the Yellow River must be discharged in the lower reaches, and the drainage must be discharged, which has a huge contradiction with the idea of intercepting the river water in the middle reaches.
Although downstream water can be solved by seawater desalination technology, the problem of silt in the middle is a difficult problem.
After all, no matter how much it is managed, the Yellow River cannot reduce silt to zero.
So, there must be a choice, or a suitable interceptor flow rate must be selected, which not only ensures that the midstream can obtain freshwater resources as much as possible, but also minimizes the silt in the midstream reservoir area.
Difficult!
No wonder so many academicians have to participate in this topic, and obviously the superiors are not sure of their ideas.
(This chapter ends)