RAM analysis and availability optimization of submerged combustion vaporizer SCV
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.
submerged combustion vaporizer(SCV)reliability,availability and maintainablility analysis(RAM analysis)key equipmentavailability optimization
国家科技期刊平台
NSTL
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