Multi-disciplinary and all-round in-depth comprehensive risk investigation

Hazard and operability analysis (HAZOP), layers of protection analysis(LOPA), safety integrity level (SIL) assessment, quantitative risk assessment (QRA) ，layout, technology, equipment, instrumentation, electrical and fire protection. The potential hazards and problems affecting the safe production of enterprises are comprehensively investigated, and in-depth analysis is carried out. The root causes of the problems are traced, and the defects in the various elements of process safety management are deeply analyzed. The safety improvement scheme of enterprises is put forward from the perspective of hardware safety and process safety management level, so as to comprehensively improve the safety production level of enterprises.