摘要
针对大型锅炉炉顶密封因热膨胀和相对位移而产生撕裂的问题,提出炉顶加装柔性密封结构的措施,分析3个经常泄漏部位炉顶密封泄漏的原因,并分别提出了各部位加装柔性密封的方案。从柔性密封选用材料和施工工艺两方面提出具体建议,并初步评估了改进后的收益。
Aiming at the tearing problems occurring in top seals of a large-scale boiler due to thermal expansion and relative displacement, measures of adding flexible seal structure to the boiler roof are proposed. By analyzing the causes leading to frequent leakage at 3 positions on the roof, specific retrofit schemes are suggested from two aspects, namely material selection and construction process determination, following which an evaluation of retrofit return is performed.
出处
《发电设备》
2012年第6期444-446,452,共4页
Power Equipment
关键词
锅炉
炉顶密封
漏烟
漏灰
柔性密封
boiler
boiler top seal
gas leakage
ash leakage
flexible seal
