人民长江
人民長江
인민장강
YANGTZE RIVER
2014年
21期
106-109,113
,共5页
钢闸门%锈蚀%积水%贝叶斯理论%排水系统%热喷涂锌保护
鋼閘門%鏽蝕%積水%貝葉斯理論%排水繫統%熱噴塗鋅保護
강갑문%수식%적수%패협사이론%배수계통%열분도자보호
steel gate%corrosion%water - logging%Bayesian theory%drainage systen%thernal spraying zinc protection
对某节制闸弧形钢闸门的锈蚀情况进行了调查。经分析，锈蚀的主因是门体上存在积水，积水发生的腐蚀主要是氧去极化腐蚀。通过贝叶斯更新后的锈蚀速率均值为0.031 nn / a，处于我国钢闸门锈蚀速率的正常水平。据此，通过改进闸门排水系统，排除门上积水，从根本上消除了产生锈蚀的主因，在此基础上进行热喷涂锌保护，并加强了工程的日常管理，防止积水滞留。从近几年的运行情况看，没发现明显锈蚀。
對某節製閘弧形鋼閘門的鏽蝕情況進行瞭調查。經分析，鏽蝕的主因是門體上存在積水，積水髮生的腐蝕主要是氧去極化腐蝕。通過貝葉斯更新後的鏽蝕速率均值為0.031 nn / a，處于我國鋼閘門鏽蝕速率的正常水平。據此，通過改進閘門排水繫統，排除門上積水，從根本上消除瞭產生鏽蝕的主因，在此基礎上進行熱噴塗鋅保護，併加彊瞭工程的日常管理，防止積水滯留。從近幾年的運行情況看，沒髮現明顯鏽蝕。
대모절제갑호형강갑문적수식정황진행료조사。경분석，수식적주인시문체상존재적수，적수발생적부식주요시양거겁화부식。통과패협사경신후적수식속솔균치위0.031 nn / a，처우아국강갑문수식속솔적정상수평。거차，통과개진갑문배수계통，배제문상적수，종근본상소제료산생수식적주인，재차기출상진행열분도자보호，병가강료공정적일상관리，방지적수체류。종근궤년적운행정황간，몰발현명현수식。
Corrosion of a steel arch gate of a regulating sluice was investigated and analyzed. The analysis indicated that the genesis of the gate corrosion was water - logging that nainly causes oxygen depolarization corrosion. The average corrosion rate updated by Bayesian theory is 0. 031nn / a,which is in a nornal level in China. According to the analysis results,the gate drain-age systen was inproved,which elininated the nain cause of corrosion fundanentally,on this basis,thernal spraying zinc pro-tection and strengthening daily nanagenent for preventing the water - logging retention were adopted. Through these neasures, no obvious corrosion is found in recent years.
