关键词: 炼油火炬总管, 动火施工, 吹扫, 置换, 隔离

Abstract: During the overhaul period, there are great safety risks in the hot work of the main pipeline of the refinery flare system. So hot work becomes a tough job. During the overhaul of the refinery zone of PetroChina Sichuan Petrochemical Company Limited, an overall plan for steam purging and nitrogen replacement and isolation measures for each unit in the oil refining area was formulated according to the identification of safety risks and the safety principles. The sampling analysis of the main pipeline of the refinery flare system met the standard on schedule. And the nitrogen discharge point was adjusted according to the construction progress. The hot work was smoothly completed on time.

Key words: refinery torch main pipe, hot work, purging, replacement, isolation