Petroleum Refinery Engineering ›› 2025, Vol. 55 ›› Issue (5): 25-28.

• PROCESS EQUIPMENT AND MACHINERY • Previous Articles     Next Articles

Hazard analysis and maintenance strategy of programmable valve failure in S Zorb unit

Xu Xiang   

  1. Sinopec Yangzi Petrochemical Co., Ltd., Nanjing, Jiangsu 210048
  • Online:2025-05-15 Published:2025-05-22

S Zorb装置程控阀故障危害性分析与维护策略

许翔   

  1. 中国石化扬子石油化工有限公司，江苏省南京市 210048
  • 作者简介:许翔，助理工程师，硕士研究生，2022年毕业于上海电力大学自动化工程专业，主要研究方向为图像处理。联系电话：15261810218，E-mail：15261810218@163.com。

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Abstract:

The reliable operation of the programmable valve of the SZorb unit is the key to the sulfur content of product gasoline reaching the standard. The valve body and accessories of the programmable valve will produce a series of problems under the frequent action of the valve and the harsh field environment, which will affect the stability of the unit. The Failure Mode, Effects, and Criticality Analysis (FMECA) method was used to analyze the fault severity of each subsystem of the programmable valve. Fuzzy evaluation and Analytic Hierarchy Process (AHP) are used to establish the maintenance strategy of the programmable valve, and the two were combined to form the FMECA-AHP method, which was applied to the SZorb unit of a petrochemical company. The results show that the FMECA-AHP method can effectively improve the maintenance efficiency of the programmable control valve in the SZorb unit. This method is efficient and reliable, reduces human and material resources, and creates benefits for enterprises.


Key words: S Zorb unit, programmable valve failure, hazard analysis, maintenance strategy, FMECA, AHP, fault severity, influence weight

摘要：

SZorb装置程控阀的可靠性运行是成品汽油硫含量达标的关键。程控阀的阀体、附件等在阀门的频繁动作以及恶劣现场环境下会产生一系列问题，影响装置的稳定性。使用故障模式影响与危害度分析（FMECA）方法分析程控阀各子系统故障严重性，利用模糊评价与层次分析法（AHP）建立程控阀维护策略，将二者组合形成FMECA-AHP方法，并应用于某石化公司SZorb装置。结果表明：采用FMECA-AHP方法对程控阀各子系统故障进行等级划分并设计维护策略，可有效提高SZorb装置程控阀维护效率，该方法高效、可靠，降低了成本，为企业创造了效益。

关键词: S Zorb装置, 程控阀故障, 危害性分析, 维护策略, FMECA, AHP, 故障严重性, 影响权重