摘要
针对粉煤气化粉煤输送单元阀门经常出现内漏和卡涩的现象,分析了阀门发生故障的原因和机理,提出一些特种阀门的结构形式并加以应用。中试装置3年的运行情况表明,通过对球阀的改造和采用新型结构阀门,有效地降低了故障发生的频率,保证了粉煤气化粉煤输送单元的长周期运行。
According to frequent phenomena of internal leakage and jamming in valves of conveying unit of pulverized coal gasification system, some special structure forms of valves are proposed and applied through analyzing causes and mechanism of valves faults. Experimental results show that the faults are effectively reduced by remolding ball valve and adopting new valve strueture, which ensures a long period running of conveying unit of pulverized coal gasification system.
出处
《现代化工》
CAS
CSCD
北大核心
2011年第11期68-72,共5页
Modern Chemical Industry
基金
国家"863"计划项目(2008AA050301)
兖矿集团2008年科技研发项目(08-27)
关键词
硬密封球阀
文丘里角阀
盘阀
内漏
hard sealing ball valve
venturi angle valve
poppet valve
internal leakage