某生物电厂过热器用不锈钢TP347H泄漏原因分析  

Analysis on Leakage Causation of Stainless Steel TP347H Used in Overheater in Biology Plant

作　　者：李巨峰[1] 

机构地区：[1]环境保护部核与辐射安全中心,北京100082

出　　处：《热加工工艺》2016年第8期244-246,共3页Hot Working Technology

摘　　要：对以棉花秸秆作为燃料的生物电厂锅炉过热器用不锈钢TP347H的泄漏原因进行分析。对失效的管材进行了化学成分、金相、力学性能试验,同时又对腐蚀垢进行了能谱分析。在燃料燃烧产生的碱金属氯化物和硫氧化物的共同作用下,产生的HCl、Cl_2对管材TP347H的腐蚀是泄露的主要原因。The leakage causation of stainless steel TP347H used in overheater in biology plant boiler regarding cotton haulm as main fuels was analyzed. The chemical analysis, metallography and mechanical property test of failed tubes material were carried out. The corrosion products were analyzed by energy spectrum analysis. The interaction of alkali metal chloride and sulfur oxide from fuel combustion produce the chlorine and hydrochloric acid, which can corrode the tubes material TP347H. And this is the main reason for leakage.

关 键 词：电厂 过热器 泄漏 

分 类 号：TP347[自动化与计算机技术—计算机系统结构] TG113.2[自动化与计算机技术—计算机科学与技术]