"The first circle in the world" is going on the road smoothly, how did Shandong do it?

Reporter Yu Bosheng

"The transport vehicle has successfully entered the high speed and began to escort." On July 15th, the Jinan section of the Jiqing Expressway North Line ushered in a large "guest". The total width is 15.8 meters, spanning four lanes, and the world's largest diameter nuclear power branch loop is loaded on the road in Jinan and drove towards the destination.

To output more power for nuclear power

The world's first circle is produced in Jinan

At 5 am on the morning of July 15th, a transport vehicle led a large iron ring through the excavated anti -collision barrier to enter the high -speed main road, and the escort vehicle followed closely. From the perspective of aerial photography, there is no other vehicle driving in the entire lane, and large transport vehicles are running all the way.

What is the large piece of traffic closed because of a large iron ring and the entire direction. "The oversized transportation of this transportation is the key core equipment of the national fourth -generation nuclear power project, and it is also the world's largest nuclear power support ring." Relevant staff told reporters that in order Component composition, the nuclear power ring is a very important part.

"The role of the support ring, as the name suggests, is the base of the nuclear reactor, which supports the nuclear reactor weighing thousands of tons or even tens of thousands of tons." The staff member said that as the basis of the nuclear reactor, the support ring needs to work for 60 years to not be replaced. The environment of its work is very bad, because directly contacting the nuclear reactor, the support ring will be heated to hundreds of degrees Celsius during work. Essence

According to reports, the nuclear power branch of this transportation is produced by Elit Energy Equipment Co., Ltd., which is located in Zhangqiu District, Jinan City. Here, it also has a nice name- "Qiankun Circle". The reporter's inspection of the information learned that the "Qiankun Circle" has high requirements for its own reliability. In production, it is necessary to minimize welded seams and one -piece molding. The internal chemical composition of the materials used in the components should be as uniform as possible.

Prior to 2019, there was no such size of the large diameter and integration technical process in China. Most of them were made into sections into sections and then welded. Such a process welding was inevitable.

Ren Xiufeng, Vice President of Elite and General Manager of the Technical Research Center, previously said that the "Qiankun Circle" has no welding port, and the overall strength, performance and life index have been improved. For the first time, it has been achieved for the first time of an integrated manufacturing of a diameter of 15.6 meters of nuclear power. Therefore, it is also called "the world's first circle".

The use of domestic nuclear power support rings has greatly reduced the construction cost of domestic nuclear power plants and broke the technological monopoly. Compared with the support ring imported from abroad, the price of the domestic support rings is greatly lowered, and the performance and size are larger. It not only saves a lot of expenditures for the construction of nuclear power plants, but also allows China Nuclear Power Station to use a larger reactor to reach higher output to achieve higher output power.

Open the fence flat pavement

"Big Ring" successfully entered the highway

"How can such a large equipment be transported at high speeds? Is it necessary to remove the toll station?" After the nuclear power support was on the road, it attracted the attention of many citizens and netizens. Regarding the relevant issues of large transportation, the reporter contacted Wang Bing, deputy team of the nine deputy teams of the nine brigades of Jinan City, who participated in the escort task. "We received relevant survey notice of oversized and super -limited transportation in mid -May." Wang Bing told reporters that oversized transportation needs to prepare in advance. After receiving the notice, the Jinan Transportation Department began to investigate along the line.

It is understood that the outer diameter of the nuclear power branch loop was 15.48 meters, and the total width of the workmanship reached 15.8 meters, which had high requirements for the highway, safety, and unblocked aspects. "We are in contact for this oversized transportation." Wang Bing said.

After docking with the nuclear power branch loop production enterprise and the transportation company, the Jinan Transportation Department and the high -speed traffic police department have formulated an on -road security plan, and how to enter the high -speed solution is a focus. "Excessive diameter, 15.8 meters, four lanes are full, and toll stations must not be able to pass." Wang Bing said that in order to allow large pieces of high speeds, they decided to open the fence in one place and open a mouth.

After field survey, a parking lot near Zhangqiu Diao Town was close to the high -speed toll station. "This old parking lot is on the side of the high speed, and the gap between this position is small, and the road and the ground are not too deep." In order to allow the nuclear power branch to on the road smoothly, the relevant departments filled the side groove on the high -speed side and flattened the road surface. Essence

It can be seen that at the time, it can be seen that on July 14, the nuclear power support ring was loaded in Elit and fixed the traction device. In the afternoon of the same day, after the departure work, the transportation vehicle traction nuclear power branch entered the Zhangqiu Diao Town Laying Late for standby. At 4 am on the 15th, the staff picked up the guardrail here, and the transport vehicle started from the parking lot to enter the high speed. At 5 o'clock, with the joint efforts of many parties, the nuclear power support loop transport vehicle was successfully entered the main road of the high -speed speed. The Jinan Transportation Comprehensive Administrative Law Enforcement Detachment and the high -speed traffic police department escorted the vehicle out of the jurisdiction of Jinan.

The whole process of clearing the obstacle to the public water

In the future, you can carry more oversized transportation

The problem of high -speed high -speed is solved, and how is it guaranteed during the transportation of nuclear power support. The reporter learned that this transportation was launched from Jinan, the roads of the road, and the road destination of the road was in Weifang. After the high speed of the Weifang, the nuclear power branch was inherited from the port to the sea, and the sea was transported to Dalian. There are many areas along the way, long use, and high requirements for highways.

"Our detachment dispatched three law enforcement vehicles at the time, and the high -speed traffic police dispatched two, and there were three transportation companies." Wang Bing said that because of excessive width, half of the highway transportation must be prohibited. From 4 am to 10 am on the same day, the Qingdao direction of Jiqing North Line was in a closed state, avoiding interference caused by driving to large transportation. It is understood that in addition to traffic ban, roadblocks along the way have also been excluded. "Highway guardrails, grass and wood greening, and power communication have been partially demolished, which requires multi -party cooperation in the middle." Wang Bing said that the large -scale transportation was approved by Jinan to obtain the obtained obtaining obstacles of roadblocks.

During the transportation period, the toll stations and divergent points along the way were on duty, controlled the jurisdiction of the jurisdiction, and cleared the highway roads during the driving period of large transportation vehicles to do a good job of transportation and diversion. "We have accumulated a lot of experience this time, and we have accumulated a lot of experience. Next time we encounter relevant tasks, we are more confident." Wang Bing said.

"This is why Shandong's highway is wide and straight." Many netizens believe that Shandong's trunk roads are in all directions and have a large traffic capacity, which can be called the "giant" of the highway. The reporter learned that the northern line of the Jiqing High Speed ​​Expressway passed by the large transportation of this time is a trunk road in Shandong Province. It connects Jinan, Binzhou, Zibo, Weifang, and Qingdao from west to east. aisle". In July 2019, the northern line of Jiqing High Speed ​​completed the four -change and eight projects. From the two -way four -lane lane in the past to two -way eight lanes, the traffic ability was greatly improved.

Industry insiders said that large transportation has high demand for highways. After the reconstruction of the northern line of Jiqing Highway, the capacity increased, laying a foundation for this transportation. At present, high -speed road network projects such as Jiqing Expressway midline, Jiwei Highway, Jinan West West Ring Road, and Jinhe Expressway, and other high -speed road network projects are being promoted. Guarantee, polish the "Shandong Road" brand, and optimize the overall business environment.

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