LNG运输船气试与首次装卸操作的程序

Gas Trials and First Loading-Unloading Operation of Membrane Tank LNG Carriers

对液化天然气接收站配合液化天然气运输薄膜船进行气试操作的操作步骤进行了重点描述。对液化天然气运输船到达LNG接收站前的低温测试项目中的安全栅氮气充填、液货舱与管线干燥、惰化、物料管线与冷工作程序和应注意的事项进行了介绍,重点描述了液化天然气运输船到达LNG接收站后的物料处理系统测试,为气体测试的关键内容,包括液化天然气运输船与LNG接收站的连接以及紧急关停系统的测试程序具体内容及操作步骤,对净化环节的LNG蒸汽温度、货舱的压力,典型操作程序,应注意的检查项目进行了描述;对冷却阶段的温度指标、操作程序及注意事项进行了描述,对冷却后的装载、海上净化、海上冷却、LNG转移和泵操作、卸载、升温以及最后的惰化和通风操作步骤进行了描述。

This paper describes the gas trials operations of all the systems and their components pertaining to the handling, stowage and disposal of the LNG cargo. All the steps of the vessel normal operations, including the gas fuel burning operations, are checked and tested with a limited quantity of LNG Sea trials, gas trials, cold test, including barrier spaces nitrogen filling, cargo tank and piping drying, inerting, cargo pipelines cool down, cargo handling systems tests during gas trials, including connection to the terminal and emergency shutdown system test, purging （gassing-up）, cool down, loading, purging （gassing-up） at sea, cooling down at sea, cargo transfer and pump operations, unloading, warming-up, inerting and aeration.