The prevention and emergency optimization of shutdown fault of cooling water system of proton and heavy ion accelerator / 中国医学装备

ABSTRACT

Objective:To research the prevention and emergency optimization of shutdown fault of cooling water system of proton and heavy ion accelerator, and elucidate their application effect through analyzed the fault of cooling water system of accelerator (IONTRIS) in SPHIC.Methods: Through analyzed the reasons of shutdown faults, the predictive diagnosis and reconstruction scheme of shutdown fault were implemented. The voltage compensator was installed for preventing the voltage fluctuation of external power grid. And the detection method of mechanical vibration was used to prevent fault of water pump. The emergency constant pressure facility and rapid switching system of fault were designed and installed to prevent fault of constant pressure facility. At the same time, the emergency system of preventing leakage was designed and installed to reduce the risk of water leakage.Results: After the optimal emergency scheme was implemented, the ability of fault emergency of cooling water system of proton and heavy ion accelerator were enhanced and improved.Conclusion: The design and operation of large medical facilities need to fully consider the requirements for security and redundancy and scheme for faults diagnosis and emergency.