关键词: 现役, 泄压设备, 火炬系统, 安全核算, 系统化, 典型超压工况, 动态泄放

Abstract:

The necessity of rigorously verifying the reliability of the pressure relief equipment and torch system of the in-service equipment was introduced. The main problems in the current pressure relief equipment(safety valves, rupture discs, etc.) and torch system of petrochemical enterprises were pointed out, and the reasons were analyzed. Based on the principles and requirements of API Standard 521—2020, a systematic method for safety accounting of in-service pressure relief equipment and flare systems has been proposed and successfully applied in two petrochemical enterprises. Through systematic accounting, it was found that some active safety valves have safety hazards such as insufficient flow channel area, insufficient back pressure to meet requirements, and insufficient processing capacity of the flare system to meet actual emission requirements. Targeted rectification measures have been proposed, effectively ensuring the safety production of petrochemical enterprises.

Key words: in-service, pressure relief equipment, flare system, safety accounting, systematic, typical overpressure conditions, dynamic release