摘要
腐蚀试验室通常采用转子流量计控制气体恒定流量,在试验过程中通过观察H_(2)S鼓泡的方式确保H_(2)S溶液在整个试验过程中处于饱和状态。这种控制方式无法做到对H_(2)S流量的持续监控,可能发生试验失败。在数字化腐蚀试验系统中,采用数字式质量流量计替代转子流量计,可实现H_(2)S气体流量远程实时监控和数据溯源。依托数字化腐蚀试验系统进行多次腐蚀测试,将不同恒定流量的H_(2)S气体通入到不同体积反应溶液中,探索试验溶液中H_(2)S浓度与H_(2)S流量的对应关系,从而保证腐蚀试验的稳定开展。试验表明,抗氢致开裂(HIC)试验中,若反应容器小于25 L,通入H_(2)S恒定段流量应设置为不小于8.0 mL/min,以保证腐蚀试验的稳定开展。
In corrosion laboratory,the rotameter is usually used to control the constant flow of gas.H_(2)S bubbling is observed to ensure that H_(2)S solution is saturated during the whole test.This control method cannot achieve the continuous monitoring of H_(2)S flow,and may cause test failure.In the digital corrosion test system,the digital mass flowmeter was used to replace the rotameter,which realized the remote real-time monitoring and data traceability of H_(2)S flow.The digital corrosion test system was used for multiple corrosion tests.H_(2)S with different constant flow was injected into reaction solution with different volumes to investigate the corresponding relationship between H_(2)S concentration in the test solution and H_(2)S flow,so as to ensure the smooth operation of corrosion tests.The test results showed that,in the hydrogen-induced cracking(HIC)resistance test,if the reaction vessel is smaller than 25 L,the constant flow of H_(2)S introduced should be set to no less than 8.0 mL/min to ensure the stable conduct of corrosion test.
作者
赵鑫
赵乃胜
杨艳龙
马启元
夏碧峰
周志超
ZHAO Xin;ZHAO Naisheng;YANG Yanlong;MA Qiyuan;XIA Bifeng;ZHOU Zhichao(Beijing Shougang Co.,Ltd.,Qian'an 064400,China)
出处
《物理测试》
2025年第4期7-9,共3页
Physics Examination and Testing
关键词
腐蚀试验
数字式质量流量计
硫化氢流量
硫化氢浓度
corrosion test
digital mass flowmeter
hydrogen sulfide flow
hydrogen sulfide concentration
