Innovation, with the progress of China's high-speed rail
Release time:
2018-02-11
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In recent years, China's high-speed rail has continued to maintain a rapid pace of development, the "four vertical and four horizontal" high-speed rail network has basically taken shape, and its technological achievements have won international reputation. China's high-speed rail has become a business card to witness the innovation strength of China's major high-end equipment.
At the construction site of the Tsinghua Garden Tunnel of the Beijing-Zhangjiakou High-speed Railway, which is under intense construction, the reporter saw the "magic weapon" of the construction personnel-the "visual smart construction system".
"This system integrates construction monitoring data, construction information and construction management information, and can process and analyze massive construction data." Liu Lei, deputy chief engineer of Beijing-Zhang Project of China Railway 14th Bureau, told reporters that tsinghua campus Tunnel is currently the largest shield tunnel in Beijing. It passes through 3 subway lines, 6 important urban roads and 73 important municipal pipelines. It runs in parallel with Metro Line 13 for a long distance. The minimum distance from nearby structures is only 3.4 meters. The construction is extremely difficult and requires close observation of geological conditions from time to time.
"For example, by clicking on the 3D control in the system, you can easily generate a three-dimensional stratigraphic profile, master geological information, and make a response plan." He said that the tsing hua yuan tunnel has been more than 900 meters, the progress is smooth.
Not only the construction is more "smart", the train running on the Beijing-Zhang high-speed rail in the future also has a name called "smart". As the selected unit in the design plan of Beijing-Zhangjiakou high-speed railway intelligent EMU, the designer of China Railway Changchun Rail Bus Co., Ltd. said that in view of the special needs of the Winter Olympics, the train will be equipped with a special media box with full sense of science and technology, which can watch the live broadcast of the event in real time through the intelligent display screen, and cooperate with the WIFI system covering the whole vehicle. Reporters participating in the Olympic event report can edit and send relevant manuscripts at any time.
The train also has a humanized seating area for the disabled, equipped with wheelchair fixing device, SOS button and foldable table board and other intimate design. The customized doping testing area and ice and snow sports equipment storage area make it a veritable "Olympic special train".
Innovation, along with the pace of China's high-speed rail forward. At the beginning of this year, the National Science and Technology Awards Conference was held in Beijing. The high-speed rail gear transmission system independently developed by CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co., Ltd. won the second prize of the National Science and Technology Progress Award.
Wang Wenhu, general manager of CRRC Qishuyan Institute, told reporters that the gear transmission system is the key equipment for power transmission of high-speed rail. Previously, it has been monopolized by foreign companies for a long time from technology to technology, and is one of the most "stuck" parts of high-speed rail trains.
After years of technical difficulties, Wang Wenhu said that the gear transmission system products fully cover all models and all high-speed rail lines at speeds of 160 to 350 kilometers per hour. The 350 km/h Chinese standard EMU "Fuxing" is one of the "main customers.
Such independent innovation is China's high-speed rail for many years of unremitting forward proof. The report of the 19th National Congress of the Communist Party of China pointed out that innovation is the first driving force for development and the strategic support for building a modern economic system.
On September 21 last year, the "Fuxing" officially started running on the Beijing-Shanghai line at a speed of 350 kilometers per hour, setting a new benchmark for the world's high-speed rail commercial operation.
"The Beijing-Shanghai high-speed railway is currently the highest standard of design and construction in the world, and the 'Fuxing 'is a Chinese standard EMU developed and manufactured to operate at 350 kilometers per hour. The 'Fuxing' operates at 350 kilometers per hour on the Beijing-Shanghai high-speed railway, with no problems with technical safety, reliability and comfort." Lu Dongfu, general manager of China Railway Corporation, told reporters.
In order to improve safety, technicians have established an all-round safety monitoring system on the "Fuxing. The whole car has more than 2500 sensors, more than 500 more than the previous EMU. "These sensors are like eyes, monitoring the running status of the train, bearing temperature, cooling system temperature, braking system status and passenger room environment all the time." Zhang Bo, a researcher at the China Academy of Railway Sciences, said.
It runs faster and consumes less energy. The actual measurement results of the Beijing-Shanghai high-speed rail show that at a speed of 350 kilometers per hour, the total energy consumption of the "Fuxing" and the "Harmony 380" has dropped by 10%, which means that a round trip of the Beijing-Shanghai high-speed rail can save more than 5000 kwh of electricity.
He Huawu, special technical adviser to the general manager of China Railway Corporation and academician of the Chinese Academy of Engineering, said that the "Fuxing" will be the main model for China's high-speed rail to "go global. After years of network operation, China's high-speed EMU is not afraid of desert sand, but also can adapt to high cold and high heat.
After the 350-kilometer-per-hour "Fuxing" went into operation, more "innovative blueprints" have been launched. He Huawu said that the development of a series of Chinese standard EMUs with a speed of 350 kilometers per hour, 250 kilometers per hour and 160 kilometers per hour is also under way.
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