Experimental study on deposition law of corrosion products in throttle orifice of steam generator in high temperature gas cooled reactor

王威; 张贵泉; 吴志军; 贾晶晶; 龙国军; 姚建涛

doi:10.19666/j.rlfd.202502037

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Experimental study on deposition law of corrosion products in throttle orifice of steam generator in high temperature gas cooled reactor

更新时间：2025-11-21

- Experimental study on deposition law of corrosion products in throttle orifice of steam generator in high temperature gas cooled reactor
- Thermal Power Generation Issue 11, Pages: 91-97(2025)
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- DOI：10.19666/j.rlfd.202502037
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- Published：2025
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王威, 张贵泉, 吴志军, et al. Experimental study on deposition law of corrosion products in throttle orifice of steam generator in high temperature gas cooled reactor[J]. Thermal Power Generation, 2025, (11): 91-97.
DOI：

王威, 张贵泉, 吴志军, et al. Experimental study on deposition law of corrosion products in throttle orifice of steam generator in high temperature gas cooled reactor[J]. Thermal Power Generation, 2025, (11): 91-97. DOI： 10.19666/j.rlfd.202502037.

摘要

介绍了高温气冷堆示范工程中直流蒸汽发生器和节流组件的结构特点，分析了沉积物堵塞节流孔的原因和影响因素，并通过高温高压动态循环实验装置模拟研究了高温气冷堆蒸汽发生器节流孔处腐蚀产物的沉积规律，包括不同铁源、铁质量分数、流速和pH值对节流孔沉积的影响。结果表明：游离态铁是节流孔沉积物的主要前驱体；节流孔沉积现象随水质中铁质量分数增加而加剧；节流孔沉积速率随局部流速的增加先升高后降低，存在最大沉积流速区间；水质pH值由9.1升至9.7过程中，节流孔沉积现象加剧。研究发现，适当降低给水pH值和优化节流孔结构尺寸（调整流速）是抑制蒸汽发生器节流组件沉积堵塞的有效方法。

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