Process Safety Evaluation Model Based on LEC and Grey Theory
G. J. Jiang †‡§, H. D. Lv †, L. liu †
† College of Mechanical Engineering, Inner Mongolia University of Technology, Hohhot, 010051, China
‡ Ministry of Education Key Laboratory of Wind Energy and Solar Energy Utilization Technology, Hohhot, 010051, China
§ Key Laboratory of Renewable Energy of Inner Mongolia, Hohhot, 010051, China
ABSTRACT: Based on the analysis of the major hazards on the machining process, confirm the security risk indexes that influence the working procedure, simultaneously using the operation condition risk analysis(LEC) and fuzzy mathematics method to model and analysis the safety evaluation indexes. Through the analysis of the LEC, it can obtain the risk rating of safety accident and evaluation matrix, and then applying the grey correlation degree to calculate the corresponding indexes weight and go ahead the comprehensive assessment by setting up the grey evaluation model. According to the score of evaluation results can be more precisely identify the overall level of safety evaluation in the manufacturing process, and then can be compared with the process safety of other enterprises. Finally achieve the transformation of indexes from the qualitative analysis to the quantitative analysis, and provide a theoretical basis for the enterprises to strengthen the safety protection and reduce the loss of accident.
Keywords : LEC analytical method; Grey correlation degree, Process safety indexes, Evaluation model.
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