The first set of helium refrigeration hydrogen liquefaction system in my country was successfully developed

Recently, China’s first ton-level helium expansion refrigeration hydrogen liquefaction system with independent intellectual property rights developed by 101 of the Sixth Research Institute of China Aerospace Science and Technology Corporation was successfully debugged.

The designed output of this system is 1.

According to Wang Chenggang, director of the 101st Institute of the Sixth Aerospace Academy, after more than 400 days of continuous research by R&D personnel, they have overcome the hydrogen liquefaction process based on helium refrigeration, high-efficiency and high-power helium turboexpander, high-performance para-hydrogen conversion, and hydrogen liquefaction cold box Structure and manufacturing process, hydrogen liquefaction system control logic and many other key technologies

It is understood that hydrogen is divided into normal hydrogen and para hydrogen according to the direction of the nuclear spin in the hydrogen molecule.

On this basis, the Sixth Aerospace Academy focuses on the core technology of liquid hydrogen preparation, storage, transportation, and supply.

Prior to this, the global large-scale production technology of liquid hydrogen was mainly controlled by foreign companies such as Linde, Air Liquide, AP, Praxair, and Russian Cryogenic.

Wang Chenggang said that it will further optimize the existing technological achievements, reduce energy consumption, and improve and verify the reliability of system operation

Link aerospace six homes 101 is the only liquid oxygen liquid hydrogen rocket engine test center of our country