摘要
目的研究热带滨海地区景观设施的腐蚀特征及影响因素。方法通过宏观调查和微区检查的方法,对比分析湛江、珠海和深圳3个典型的热带滨海城市景观设施腐蚀状况的差异,总结热带滨海景观设施的腐蚀特征。结果缝隙腐蚀和焊缝腐蚀是热带滨海景观设施发生频次最高的腐蚀类型,其中出现缝隙腐蚀的频次平均为66.6%,出现焊缝腐蚀的频次平均为53.2%。随着离海岸距离的增大,景观设施腐蚀程度减小,其中景观设施在200 m发生大面积腐蚀的程度比100 m平均减轻22.1%。景观设施向海面发生严重腐蚀的比例比背海面高,其中景观设施向海面在100 m发生腐蚀比背海面严重,比200 m平均增高10.4%。结论热带滨海地区景观设施的腐蚀差异与设施离海距离、设施朝向以及热带海洋大气环境要素(相对湿度和大气污染物浓度)密切相关。
This paper aims to study the corrosion characteristics and influencing factors of structures in tropical coastal areas.Through micro-scale investigation and microzone inspection in three typical coastal cities of Zhanjiang,Zhuhai,and Shenzhen,the corrosion characteristics and differences of structures are compared and summarized.The survey results show that crevice corrosion and weld corrosion are the corrosion types of highest occurrence frequency for tropical coastal structures.The average frequency of crevice corrosion is about 66.6%,and the average frequency of weld corrosion is about 53.2%.With the increase of the distance from the coastline,the average decrease of corrosion degree from structures 100 m away from coastlines to structures 200 m away from coastlines is 22.1%.The serious corrosion proportion on the side of structures near the sea is higher than the far side of structures,and the average serious corrosion proportion difference between near sides and far sides of structures 100 m away from the sea is 10.4%higher than those 200 m away from the sea on average.The corrosion difference of structures in tropical coastal areas is closely related to the distance from the sea,the orientation of structures and the environmental factors(relative humidity and air pollutant concentration)of the tropical marine atmosphere.
作者
容宇媚
张际标
陈春亮
邓培昌
胡杰珍
RONG Yu-mei;ZHANG Ji-biao;CHEN Chun-liang;DENG Pei-chang;HU Jie-zhen(College of Chemistry and Environment,Guangdong Ocean University,Zhanjiang 524088,China;Analysis and Testing Center,Guangdong Ocean University,Zhanjiang 524088,China;.College of Mechanical and Power Engineering,Guangdong Ocean University,Zhanjiang 524088,China;Southern Marine Science and Engineering Guangdong Laboratory(Zhanjiang),Zhanjiang 524000,China)
出处
《装备环境工程》
CAS
2021年第7期62-69,共8页
Equipment Environmental Engineering
基金
广东省科技计划项目(2016A020225004)
南方海洋科学与工程广东省实验室(湛江)资助项目(ZJW-2019-08)
广东海洋大学冲一流和创新强校工程项目(231419018,230420007)。
关键词
热带滨海地区
景观设施
腐蚀特征
大气腐蚀
环境因素
tropical coastal area
coastal structures
corrosion characteristics
atmospheric corrosion
environmental factors
