浸没燃烧式气化器SCV的RAM分析及可用度优化OA北大核心CSTPCD
RAM analysis and availability optimization of submerged combustion vaporizer SCV
浸没燃烧式气化器(SCV)是液化天然气LNG应急调峰站的关键核心系统,系统中出现设备故障会导致天然气供应中断,将造成显著社会影响与生产损失.为了评估SCV系统的生产性能及提高运行稳定性,提出并建立SCV-RAM分析模型,应用蒙特卡洛模拟仿真定量辨识 SCV 的瓶颈单元设备并针对性设计改进方案.结果表明,SCV 系统易发生故障的单元按贡献度依次分别是:助燃空气单元、循环冷却水单元,其中导致系统不可用度增大的具体关键设备为水泵、电机以及鼓风机.据此对关键设备的预防性维修间隔进行优化,SCV 系统的全寿命周期统计可用度从 90.17%提高到 94.93%,总停机时间减少了 3478 h.分析结果有助于优化SCV系统的维修资源分配,为实现SCV系统长周期稳定运行提供技术支持.
Submerged combustion vaporizer(SCV)is the key core system of LNG emergency peak loading station.Equipment failure in the system will lead to gas supply interruption,which will cause significant social impact and production loss.An analysis model of SCV-RAM was proposed and established to evaluate the production performance and improve the operation stability of SCV system.The bottleneck equipment of SCV was identified quantitatively by Monte Carlo simulation and the improvement scheme was designed.The results showed that the units prone to failure in the SCV system were combustion air unit and circulating cooling water unit in order of their contribution,and the key equipment leading to an increase in system unavailability were water pump,motor and blower.Based on this,the preventive maintenance interval of key equipment was optimized and improved.The statistical availability of the whole life cycle of SCV system was increased from 90.17%to 94.93%,and the total downtime was reduced by 3478 h.The analysis results are helpful to optimize the allocation of maintenance resources of SCV system and provide technical support for realizing the long-term stable operation of SCV system.
周文安;王海清;陈桂海;韩思杰
中国石油大学(华东) 安全科学与工程系,山东 青岛 266580安全与运营管理部 深圳市燃气集团股份有限公司,广东 深圳 518040
安全科学
浸没燃烧式气化器(SCV)可靠性、可用性和维护性分析(RAM分析)关键设备可用度优化
submerged combustion vaporizer(SCV)reliability,availability and maintainablility analysis(RAM analysis)key equipmentavailability optimization
《高校化学工程学报》 2024 (002)
302-309 / 8
国家重点研发计划(2019YFB2006305).
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