海水循环冷却中混凝土构筑物的腐蚀隐患  

Corrosion Challenge of Concrete Structures in Seawater Circulating Cooling System

作　　者：焦春联 侯相钰 徐旭 沈忱 尹建华 王维珍 JIAO Chun-lian;HOU Xiang-yu;XU Xu;SHEN Chen;YIN Jian-hua;WANG Wei-zhen(Institute of Seawater Desalination and Multipurpose Utilization,MNR〈Tianjin〉,Tianjin 300192,China;Tianjin Zhonghai Water Treatment Technology Co.,Ltd.,Tianjin 300345,China)

机构地区：[1]自然资源部天津海水淡化与综合利用研究所,天津300192 [2]天津市中海水处理科技有限公司,天津300345

出　　处：《盐科学与化工》2021年第9期1-4,共4页Journal of Salt Science and Chemical Industry

基　　金：自然资源部高层次科技创新人才培养工程杰出青年人才资助项目(12110600000018003935);中央级公益性科研院所基本科研业务费专项资金项目(Y-JBYWF-2019-17)。

摘　　要：海水循环冷却技术实现了以海水代替淡水作为工业循环冷却水,节约了大量的淡水资源。然而海水是天然的强电解质且含有大量的微生物,具有较强的腐蚀特性,循环冷却系统又长期处于温热的水环境中,尽管混凝土具有很强的抗腐蚀特性,但系统中的混凝土构筑物依然面临着严峻的腐蚀挑战。文章对我国海水循环冷却技术进展及工程中混凝土构筑物的腐蚀问题进行综述,并对主要影响因素及其劣化机制进行分析。The seawater circulating cooling technology has been realized to replace fresh water with seawater as industrial circulating cooling water.Save a lot of freshwater resources.Since seawater is a natural strong electrolyte containing a large number of microorganisms,it has strong corrosion characteristics.In addition,the circulating cooling system has been in a warm water environment for a long time.Although concrete has strong anti-corrosion properties,the concrete structures in the seawater circulation cooling system still face serious corrosion risks.This article reviewed the progress of China's seawater cooling technology,the hidden dangers of corrosion of concrete structures in seawater circulation cooling projects,and the main factors that affect concrete damage in seawater circulation cooling projects,and analyzes its degradation mechanism.

关 键 词：海水 循环冷却 混凝土 腐蚀 劣化机制 

分 类 号：TQ085[化学工程] P746[天文地球—海洋科学]