Speaker
Dr
Jianqin Zhang
(IHEP,CAS)
Description
With the development of superconducting accelerators, a massive increase of helium is needed for the superconducting equipment of the Accelerator Driven Sub-critical System in the Institute of High Energy Physics (IHEP-ADS). Since the cryogenic system requires a high standard of helium purity, a helium purification system will be built to use helium efficiently and circularly. The purifier is designed to work at a temperature of 77K. Oil and moisture are removed by coalescing filters and a molecular sieve bed, while nitrogen and oxygen are condensed by a phase separator and then adsorbed in several activated carbon absorbers. The purifier will work in a flow of 5 g/s at 200 bar in continuous operation for 12 hours. After purification, the purified helium has an impurity content of less than 5ppm.
Authors
Dr
Jianqin Zhang
(IHEP,CAS)
Prof.
Shaopeng Li
(IHEP,CAS)
Co-authors
Dr
Rui Ge
(IHEP,CAS)
Mr
Zhuo Zhang
(IHEP,CAS)
