SDG-Based HAZOP and Fault Diagnosis Analysis to the Inversion …
网页2007年2月1日 · Research into hazard and risk assessment and fault diagnosis based on signed directed graphs (SDGs) is an important field of safety technology. Key aspects of SDG study include fault propagation mechanisms in complicated systems and the development of modeling theory based on deep knowledge for complicated systems.
基于SDG-HAZOP的输气站场风险评价方法研究 - 万方数据
网页本文研究了sdg-hazop方法在输气站场中的建模方法，通过建立输气站场的sdg-hazop模型来辨识输气站场的风险传播路径，确定输气站场非正常事件导致不利后果的演变过程。
SDG-based HAZOP analysis of operating mistakes for PVC process
网页2009年1月1日 · To address the difficulties in current HAZOP method, this paper proposes a signed digraph (SDG)-based HAZOP analysis method. It is used to identify the most likely operating mistakes that may cause certain process variable deviating from its normal value, which is the main source of safety concern.
Safety Evaluation of Emulsion Explosives Production Line based on SDG-HAZOP
网页2012年1月1日 · Since both SDG and HAZOP could realize bi-directional reasoning, SDG is one of the most effective methods to complete HAZOP automatically. A HAZOP analysis process by forward and backward reasoning of SDG is defined as SDG-HAZOP method[7].
A New HAZOP Automated Method for the Oil and Gas Complex …
网页2023年9月30日 · Aiming at the problems of traditional purely manual HAZOP analysis, such as time consuming and labor consuming, and insufficient completeness of analysis results, a method that combines process expression based SDG and HAZOP knowledge expression based ontology is proposed to realize the automation of HAZOP analysis process.
Improvement and Application of HAZOP Analysis for Batch Process with SDG
网页Hazard and Operability (HAZOP) analysis is a systematic procedure for determining the abnormal causes of process deviations from normal behavior and their adverse consequences in a chemical plant. A computer-aided HAZOP analysis software platform based on Signed Directed Graph (SDG) called SDG-HAZOP has been developed recently.
基于SDG模型的计算机辅助HAZOP分析及应用研究 - 百度学术
网页本文的研究工作覆盖了从建模,推理,分析结果表达等一套完整的基于sdg模型的计算机辅助hazop分析方法,并在实际工业中进行了应用.本研究取得的研究成果和创新点包括以下几个方面: (1)提出一套系统的基于主危险的sdg评价模型建模方法 本文以主危险为核心,以sdg ...
HAZOP Analysis System Compliant with Equipment Models Based on SDG
网页An automatic analysis system is developed to perform HAZOP effectively. In this study, semi-automatic analysis system was developed by using the Signed Directed Graph (SDG) as a deviation in the behavior of the propagation of equipment.
网页SDG-based HAZOP analysis method is designed to minimize human errors systemically. Sections 2 and 3 provide a brief introduction to SDG and HAZOP, respectively. In Section 4, the...
SDG-based hazop and fault diagnosis analysis to the inversion …
网页This paper presents some practical applications of signed directed graphs (SDGs) to computeraided hazard and operability study (HAZOP) and fault diagnosis, based on an analysis of the SDG theory. The SDG is modeled for the inversion of synthetic ammonia, which is highly dangerous in process industry, and HAZOP and fault diagnosis based on …
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