基于风险的报警优先级量化设定方法研究

当前主流报警优先级设定方法操作性不佳，在进行装置报警系统优化时由于考虑维度少而无法较好优化报警系统优先级，针对该问题，建立了基于风险的报警优先级设定新方法。将标定的风险图法应用于报警优先级设定，假定某报警不存在，对出现危险情况的频率、后果严重度、可用时间、避免事故后果的可能性等进行标定，并对危险状况出现频率与可用时间进行矩阵分析，将结果运用于风险图中；针对某柴油加氢装置报警系统，应用该方法进行了报警优先级优化。结果表明:基于风险的报警优先级量化设定方法能够有效应用于优化装置报警优先级；经该方法优化的各级报警，数量分布更接近EEMUA的推荐值；对于“在所考虑的报警不存在时每年发生事故的次数”因素，研究给出3个不同的档次供企业选择，实践中，企业可结合自身可接受标准，作进一步完善。

Research on the method of risk priority setting based on risk

At present, the mainstream alarm priority setting method has poor operability. When the alarm system is optimized, the priority of the alarm system can not be optimized because of the lack of consideration of the dimension.To solve the problem, based on the risk, a new alarm priority setting method was established. The calibrated risk graph method is applied to the alarm priority setting. Assume an alarm does not exist, the frequency of dangerous situations, the severity of consequence, the available time and the possibility of avoid accident consequences are calibrated. The frequency and the available time of the dangerous situation are analyzed by matrix, and the results are applied to the risk map. The method is applied to the optimization of an alarm system of a diesel hydrogenation unit, and the result is close to the recommended proportion in EEMUA. The problem of poor operation and optimization difficulties are solved.