海水流速对DH36平台钢阴极保护的影响

范丰钦, 宋积文, 李成杰, 杜敏

Effect of Flow Velocity on Cathodic Protection of DH36 Steel in Seawater

FAN Fengqin, SONG Jiwen, LI Chengjie, DU Min

表1 不同流速和不同电流密度条件下阴极极化7 d后的电极电位值

Table 1 Final potentials after polarization for 7 d under different conditions of sea water flow rate and current density

Current density mA/m2 Potential / mV 0.20 m/s 0.40 m/s 0.60 m/s 0.80 m/s 300 -718 -703 --- --- 400 -879 -794 -777 -735 600 -1000 -976 -909 -942 800 -1120 -1160 -1004 -976 1000 --- --- -1025 -1008