循环氨水管道泄漏原因分析及防漏措施

燃料与化工 ›› 2011, Vol. 42 ›› Issue (3): 53-55.

• 煤气净化与化学产品加工 • 上一篇下一篇

循环氨水管道泄漏原因分析及防漏措施

王永林余钱

马鞍山钢铁股份有限公司煤焦化公司，马鞍山 243061

出版日期:2011-05-28

Analysis of leakage cause of flushing liquor pipeline and leakage prevention measure

Wang Yonglin Yu Qian

The Coal and Coking Company of Masteel, Maanshan 243061, China

Online:2011-05-28

摘要/Abstract

摘要：

循环氨水中的H2S等多种腐蚀性介质不是造成氨水管道泄漏的主要原因，循环氨水管道的各种残余应力和介质腐蚀的联合作用诱发了管道的应力开裂，H2S等应力腐蚀和氢损伤是造成氨水管道泄漏的主要原因。焊接缺陷或应力腐蚀在管道内壁形成的微小裂纹也会诱发氨水管道的缝隙腐蚀，因此采用A302不锈钢过渡焊条焊接等保证焊接质量和有效地消除管道的各种残余应力，能避免氨水管道的泄漏。

Abstract:

Flushing liquor contains several kinds of corrosive mediums, such as H2S and so on. They are not main cause of the leakage of flushing liquor pipeline. The combination effect of the various kinds of residual stress and medium corrosion generated of flushing liquor pipeline causes the stress rupture of the pipeline. The stress corrosion by H2S etc. and hydrogen damage are the major cause of flushing liquor pipeline leakage. The welding defect generated or the microcracks developed by stress corrosion on the inner wall of the flushing liquor pipeline can cause the joint corrosion of flushing liquor pipeline. Therefore the use of A302 stainless steel transitional welding rod to ensure welding quality and the effective elimination of various kinds of residual stresses can avoid the leakage of flushing liquor pipeline.

中图分类号:

TQ515.9

王永林余钱. 循环氨水管道泄漏原因分析及防漏措施[J]. 燃料与化工, 2011, 42(3): 53-55.

Wang Yonglin Yu Qian. Analysis of leakage cause of flushing liquor pipeline and leakage prevention measure[J]. FUEL & CHEMICAL PROCESSES, 2011, 42(3): 53-55.