煤气化工艺闪蒸工段配套缓冲装置故障的原因分析及整改方向

ReasonAnalysis and Rectification Direction of the Failure of the Supporting Buffer Device in the Flash Steam Section of Coal Gasification Process

煤气化工艺闪蒸工段闪蒸罐根据工艺的需求配置有两到三级,每一级闪蒸罐上均配置缓冲装置,自气化工段来的高压灰水在缓冲装置内实现降压过程,至此,缓冲装置运行条件尤为苛刻,在运行过程中易磨穿泄露,泄露后又不易消缺,且泄露过程检修安全风险极高,多数情况下被迫停车处理,是气化生产长周期稳定运行的短板。文章就针对缓冲装置问题,进行原因分析并提出整改方向。

The flash tank in the coal gasification process flash tank section is equipped with two to three levels according to the process requirements,and each level of flash tank is equipped with a buffer device.The high-pressure ash water from the gas chemicalsection realizes the pressure reduction process in the buffer device.Therefore,the operating conditions of the buffer device are particularly harsh,and it is easy to wear through and leak during operation,but it is not easy to eliminate defects after leakage.Moreover,the safety risk of maintenance during the leakage process is extremely high,and in most cases,it is forced to stop for treatment,whichis a short board for long-term stable operation of gasification production.The article analyzes the causes of the buffer device problem and proposes rectification directions.