液化天然气16万立方米储罐海水试压期间阴极保护方案

广东珠海金湾液化天然气一期工程 液化天然气储罐海水试压阶段阴极保护工程设计方案Guangdong Zhuhai Golden Bay LNG Project Phase ICathodic Protection of LNG Storage Tanks at Seawater Hydrotest StageMethod StatementA2013/01/26Issue for revision郭明旭陈仁兴费良REV.版本.DATE日期PURPOSE OF THE EDITION发文目的PREPARED BY编制REVIEWED BY审核APPROVRD BY批准目录 Contents一 、 临 时 阴 极 保 护 工 程 概 况 Project Basic Data for Cathodic Protection........................................................................3二、临时阴极保护工程实施前的测试与实验 Tests prior to Cathodic Protestion........................................................................3二、设计依据 Design Reference.............................................3三、采纳标准 Applicable Standards........................................3四、技术指标 Technical Parameters........................................3五、被保护体参数 Data of the Protected Structures.................3六、阴极保护设计 Cathodic Protection Design..........................36.1 设计应考虑的实际因素 Actual Factors to be Considered in the Design..............................................................................36.2 阴 极 保 护 设 计 方 案 的 选 用 Design of Cathodic Protection Methods...........................................................................36.3 罐底板及 1.5 米高罐壁牺牲阳极阴极保护设计 Design of Galvanic Anode Cathodic Protection for Inner Tank Bottom and Shell Paltes up to 1.5m Elevation...............................................36.3.1 保 护 电 流 密 度 的 选 取 Selection of Protection Current Density.............................................................................36.3.2 保护电流计算 Calculation of Protection Current..............36.3.3 牺牲阳极材料的选取 Selection of Sacrificial Anode Material..........................................................................