基于海水循环模拟系统的牺牲阳极材料对<strong>B30</strong>传热管腐蚀行为影响研究

doi:10.11902/1005.4537.2025.274

中国腐蚀与防护学报

2026, Vol. 46

Issue (4): 1139-1147 CSTR: 32134.14.1005.4537.2025.274 DOI: 10.11902/1005.4537.2025.274

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基于海水循环模拟系统的牺牲阳极材料对B30传热管腐蚀行为影响研究

徐慧强¹, 赖长清², 王茜茜², 王子明²(

)

^1.中国船舶集团有限公司第七〇三研究所哈尔滨 150000
^2.厦门大学材料学院厦门 361005

Influence of Sacrificial Anode Materials on Corrosion Behavior of B30 Cu-Ni Alloy Heat Transfer Tubes in a Simulated System of Circulating Seawater

XU Huiqiang¹, LAI Changqing², WANG Xixi², WANG Ziming²(

)

^1.No. 703 Research Institute of CSSC, Harbin 150000, China
^2.School of Materials Science and Engineering, Xiamen University, Xiamen 361005, China

引用本文:

徐慧强, 赖长清, 王茜茜, 王子明. 基于海水循环模拟系统的牺牲阳极材料对B30传热管腐蚀行为影响研究[J]. 中国腐蚀与防护学报, 2026, 46(4): 1139-1147.
Huiqiang XU, Changqing LAI, Xixi WANG, Ziming WANG. Influence of Sacrificial Anode Materials on Corrosion Behavior of B30 Cu-Ni Alloy Heat Transfer Tubes in a Simulated System of Circulating Seawater[J]. Journal of Chinese Society for Corrosion and protection, 2026, 46(4): 1139-1147.

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摘要:

船舶通海侧B30传热管是蒸汽动力支撑关键部件，服役过程中面临海水腐蚀风险。本文在实验室内搭建传热管海水循环模拟系统，通过分别安装锌和铁牺牲阳极，探究其对传热管腐蚀的影响规律。研究表明，相较于未安装牺牲阳极情形，锌和铁牺牲阳极均减缓传热管腐蚀，相应腐蚀溶出Cu²⁺浓度更低；同时发现牺牲阳极保护效果与空间距离相关，当超过特定距离电位接近铜镍合金的腐蚀电位，保护效果变弱。本文结论对合理设计船舶冷凝器换热管路，特别是牺牲阳极的选择和安装，提供了实验支撑及建议。

关键词 ：牺牲阳极, B30传热管, 耐蚀性, 电化学腐蚀

Abstract：

The B30 heat transfer tubes on the seaward side of the vessel are critical components of the steam-powered support system and are exposed to the risk of seawater corrosion during service. In this study, a laboratory-scale simulated system of circulating seawater for heat transfer tubes was established. By installing zinc and iron sacrificial anodes separately, the effect of these anodes on the corrosion behavior of the heat transfer tubes were investigated. The findings revealed that, compared with the condition without sacrificial anodes, both zinc and iron sacrificial anodes can all slow down the corrosion of the heat transfer tubes, resulting in lower concentrations of dissolved Cu²⁺ ions in the water. Meanwhile, it was discovered that the effectiveness of sacrificial anode protection correlates with spatial distance, whilst the potential fluctuating along the pipeline may result in varying degrees of protection at different distances on the pipeline. The conclusions of this study provide experimental evidence and recommendations for the rational design of ship condenser heat exchanger piping, particularly regarding the selection and installation of sacrificial anodes.

Key words： sacrificial anode B30 heat transfer tube corrosion resistance electrochemical corrosion

收稿日期: 2025-08-29 32134.14.1005.4537.2025.274

ZTFLH:

TG174

基金资助:国家自然科学基金(52271075)

通讯作者: 王子明，E-mail：zmwang@xmu.edu.cn，研究方向为多相流腐蚀、海洋腐蚀等

Corresponding author: WANG Ziming, E-mail: zmwang@xmu.edu.cn

作者简介: 徐慧强，男，1989年生，博士，高级工程师

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https://www.jcscp.org/CN/10.11902/1005.4537.2025.274 或 https://www.jcscp.org/CN/Y2026/V46/I4/1139

图1 传热管内距离底部不同位置处电位监测数据

图2 铁牺牲阳极系统传热管内壁典型腐蚀形貌(编号XF01-12)

图3 典型铁阳极铜管试样表面分析图

图4 典型锌阳极铜管试样表面分析图

图5 典型无阳极铜管试样表面分析图

图6 3种样机样品XRD谱

图7 样机样品表面典型腐蚀产物成分分析

图8 样机样品XPS结果

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