Hydrogen Refueling Station Using A Multi-function Full Multi-layer High-pressure Hydrogen Storage Container

Due to the pressing problem of energy sources crisis and environment pollution, it has become an urgent need to exploit new clean and efficient power. Hydrogen has long been considered as an important secondary energy source of the 21st century by the merits of its high combustion efficiency, clean products and the capacity to be regenerated. Along with the booming development and industrialization of hydrogen fuel cell and electric automobile, the development of hydrogen refueling station has been paid more and more attention all over the world.The high pressure hydrogen storage tank is the key equipment of hydrogen refueling station. This thesis, sponsored by 863 Hi-Tech Research and Development Program of China on the topic of Technique and Equipment of High-pressure Hydrogen Storage (NO. 2006AA05Z143)and the topic of Hydrogen Refueling Station Key Technique and Hydrogen Refueling System (NO. 2007AA05Z152), takes deep insight into multifunctional multi-layered stationary hydrogen storage vessels for hydrogen refueling station, and makes specific efforts from the perspectives as followed:(1) analyze the safety and reliability of multifunctional multi-layered stationary hydrogen storage vessels. explain its structural characteristics and failure modes as wel as describing the history of flat ribbon wound pressure vessel and comparing multi-functional layered high pressure hydrogen storage tank with seamless high pressure hydrogen storage tank.(2) New calculate method of pretension force of winding ribbons was presented. the original pretension force calculate methods were analyzed. Based on the rationality analysis of the stress distribution of the cylinder in operation condition, considering the friction force among steel ribbons, the more rational calculate method for pretension force of the steel ribbons was deduced.(3) the welding structure between the head and the stiffening ring was researched. The three-dimensional numerical simulation method was proposed and FEA model was constructed. The stress status of the structure was analyzed and the experimental investigation for the model of vessel was done. Good agreement among FEA results and experimental data was observed, which shows the FEA model are correct. The influence on the structural stress by changing the welded structure between the head and the stiffening ring were analyzed using the numerical simulation method, which shows that the welding is not needed in the contact area of the head and the stiffening ring.