Current development and prospect of LNG storage and transportation and safety protection technology
China is a big importer of LNG,which is mainly imported by transporting LNG from LNG ships to LNG receiving stations in coastal areas and then to inland areas through pipelines after LNG is vaporized,where the key storage and transportation equipment such as storage tanks and high-pressure pumps plays a significantly important supporting role.This paper describes the development status of LNG storage and transportation technologies as well as key equipment involved in the transportation process of LNG from shipping to LNG receiving station and re-entry pipeline.The difficulties in the research and development of the technology of heat transfer and evaporation suppression in the process of LNG shipping,the static equipment such as storage,condensation and gasification and the power equipment of the long pipeline transmission were analyzed.In addition,the technology of transmission safety of LNG pipeline system was discussed as well.The paper proposes that theoretical research and breakthroughs of key technologies should be further strengthened,the key equipment of LNG storage and transportation should be developed as soon as possible,and all key equipment of LNG storage and transportation should be localized so as to ensure the safety,high efficiency and reliability of LNG storage and transportation process and independent control of major energy projects in China.
liquefied natural gas(LNG)LNG storage and transportation equipmentpipeline transmissionsafety protection technology