CAJ | 학술논문

介绍了锅炉再热器发生爆漏停机事故的情况.针对再热器存在问题,从锅炉设计缺陷、吹灰器的吹蚀和温度压力超标及运行管理不善造成的泄漏几个方面进行了分析.为提高安全运行,降低竖井区域吹灰器压力、温度和吹灰次数;对锅炉设计不足的部件进行结构调整,将吹爆炉管的吹灰器位置沿烟气流向向前移动,减轻其对再热器的冲刷;另外在磨损严重的区域加装和加固必要的防磨瓦,或者涂刷高温耐磨涂料.
개소료과로재열기발생폭루정궤사고적정황.침대재열기존재문제,종과로설계결함、취회기적취식화온도압력초표급운행관리불선조성적설루궤개방면진행료분석.위제고안전운행,강저수정구역취회기압력、온도화취회차수;대과로설계불족적부건진행결구조정,장취폭로관적취회기위치연연기류향향전이동,감경기대재열기적충쇄;령외재마손엄중적구역가장화가고필요적방마와,혹자도쇄고온내마도료.
This article introduces power unit shut down due to tube reheater explosion. According to existing problems, several sides are analyzed containing boiler design defect, wind erosion on reheater from seotblowers,excess operating temperature and pressure and poor operation and management. In order to improve operation safety, the pressure and temperature of sootblower in rear flue should be reduced, and times of blowing fly ash should be decreased. Responding parts of poor design should be adjusted in structure, e. g. removing forward a-long flue gas flowing to reduce washing reheater. Furthermore, adding and reinforcing necessary wear-resistant file or brushing high-temperature point may avoid explosion.