According to reports, Japan’s Tokai Railway Corporation announced on the 16th that the maglev train has created a new world record of 590 km per hour on the Yamanashi Maglev test line.
According to the report, the previous maglev train recorded a top speed of 581 km and was created in the test line in December 2003. According to the company, the train consisting of seven cars reached its maximum speed in 19 seconds before 12 o'clock that day. The maglev train also conducted a long-distance test run, which set a record of 4,064 kilometers a day on the 14th of this month, which greatly exceeded the 2003 record of 2,876 kilometers.
The Japan Maglev Central Shinkansen has a total length of 286 kilometers and the train has a top speed of 500 kilometers per hour. The Tokyo Shinagawa to Nagoya section is scheduled to open in 2027. The train did not find any problems during the trial run, and the company believed that the safety and durability required for the operation were confirmed. Japan’s Tokai Railway Corporation also plans to conduct a top speed test run of around 600 kilometers per hour as soon as possible on the 21st.
Due to its safety, stability, environmental adaptability, high speed and suitable for mass transportation, the magnetic levitation train is regarded as one of the most promising high-tech transportation means in the 21st century comprehensive transportation system. In order to seek the balanced development of the territorial economy and the development of super-related magnetic levitation technology, Japan has started the pre-development of linear motor-driven suspension mode trains since 1962. With the success of the operation test of five groups of vehicles with a speed of 500 kilometers per hour and a load of 270 people in Yamanashi Prefecture, Japan, the basic development plan of the Japanese superconducting maglev train is nearing completion and will be transferred to the stage of commercial operation and development.
Superconducting coil: Superconducting coil is one of the most critical equipment of maglev train, which enables the train to obtain floating, propulsion and guiding force. The superconducting material used in Japan is a superconducting wire made by embedding a superfine niobium titanium alloy multi-core wire in a copper bus bar. When such a superconducting wire is immersed in liquid helium (-269 ° C), it enters a superconducting state and is strong. magnetic field. This is the world's first high-power magnetic coil with a super-conducting technology to achieve a stable speed of 550 km on a practical transport device with a voltage of 22 kV.
Vehicle ultra-low temperature refrigeration system: Each liquid magnetic unit is equipped with a liquid helium and a liquid nitrogen compression refrigerator. The function of the liquid helium compressor is to re-freeze and reduce the helium gas which is gradually vaporized by the external heat energy and the heat generated by the train itself to liquid helium. The function of the liquid nitrogen compression refrigerator is to re-cool the liquid nitrogen refrigerant that cools the outer insulation plate of the superconducting coil to maintain a liquid nitrogen state at -196 ° C. The compressor of the MLX01 train is the world's smallest and most capable energy-saving vehicle liquid helium and liquid nitrogen compressor, and has achieved a record of 10,000 hours of continuous operation without failure. This makes it unnecessary to replenish liquid nitrogen or liquid helium after the train is running once (nitrogen).
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