石油化工腐蚀与防护
石油化工腐蝕與防護
석유화공부식여방호
PETROCHEMICAL CORROSION AND PROTECTION
2011年
6期
9-12
,共4页
外加电流%阴极保护%数值模拟%导管架
外加電流%陰極保護%數值模擬%導管架
외가전류%음겁보호%수치모의%도관가
applied current%cathodic protection%numerical simulation%platform
数值模拟技术是求解阴极保护电位模型的有效方法，数值模拟计算可以有效地预测阴极保护被保护体表面电位分布，并以此验证阳极布置效果。该文采用大型防腐蚀数值模拟分析软件Beasy对小型导管架式平台外加电流阴极保护进行数值模拟分析研究，并进行物理模型试验。结果表明数值模拟计算能够模拟分析阳极布置以及被保护体表面电位分布，辅助阳极的位置对导管架表面的电位分布有一定的影响，辅助阳极位置距离导管架越近，导管架表面电位分布越不均匀。采用物理模型试验对数值模拟计算进行的验证表明，物理模型试验与数值模拟计算结果吻合较好。
數值模擬技術是求解陰極保護電位模型的有效方法，數值模擬計算可以有效地預測陰極保護被保護體錶麵電位分佈，併以此驗證暘極佈置效果。該文採用大型防腐蝕數值模擬分析軟件Beasy對小型導管架式平檯外加電流陰極保護進行數值模擬分析研究，併進行物理模型試驗。結果錶明數值模擬計算能夠模擬分析暘極佈置以及被保護體錶麵電位分佈，輔助暘極的位置對導管架錶麵的電位分佈有一定的影響，輔助暘極位置距離導管架越近，導管架錶麵電位分佈越不均勻。採用物理模型試驗對數值模擬計算進行的驗證錶明，物理模型試驗與數值模擬計算結果吻閤較好。
수치모의기술시구해음겁보호전위모형적유효방법，수치모의계산가이유효지예측음겁보호피보호체표면전위분포，병이차험증양겁포치효과。해문채용대형방부식수치모의분석연건Beasy대소형도관가식평태외가전류음겁보호진행수치모의분석연구，병진행물리모형시험。결과표명수치모의계산능구모의분석양겁포치이급피보호체표면전위분포，보조양겁적위치대도관가표면적전위분포유일정적영향，보조양겁위치거리도관가월근，도관가표면전위분포월불균균。채용물리모형시험대수치모의계산진행적험증표명，물리모형시험여수치모의계산결과문합교호。
Numerical simulation calculation is an effective method to study the sacrificial anode cathodic protection, which can effectively predict the potential distribution on the surfaces of protected materials and verify the effectiveness of anode arrangement. The numerical simulation calculation software - Beasy is used to study the applied current cathodic protection of platform, and the physical model experiment is performed. The results show that numerical simulation calculation can analyze the anode distribution and potential distribution on the surface. The potential distribution is affected by anode position. The closer the anode is to the platform, the greater the ununiformity of potential distribution of platform. The data obtained from physical model experiment fit well with those from numerical simulation calculation.
