Risk evaluation and security management decision support system for town gas pipe

Abstract

The invention provides a decision support system for risk assessment and safety management of quantitative / semi-quantitative town gas pipelines with a modularized component type structure. The system comprises an invalidation and failure database module, a risk assessment database module, a dynamic segmentation module, a risk assessment module and a decision support module. Assessment objects comprise pipeline auxiliary equipment such as steel pipes, cast iron pipes, PE pipes, valves, condenser cylinders, compensators and the like in two laying modes of burying and erection. The invalidation, failure and risk assessment database modules provide data support for risk computation; the dynamic segmentation module dynamically divides a pipe network into pipe sections convenient for management; the risk assessment module comprises a plurality of sub modules, and a user can selectively carry out risk computation; and the decision support module provides a decision reference basis for a manager. Based on investigating multiple gas companies, each module is established by combining scientific analysis, and can achieve active and dynamic management for the gas pipelines.

Description

technical field [0001] The invention provides a risk assessment and safety management decision support system for urban gas pipelines, in particular to a quantitative / semi-quantitative risk assessment and risk management method and system for urban gas pipelines with a modular component structure. The system includes gas pipelines Failure and accident database module, risk assessment database module, dynamic segmentation module, risk assessment module, risk management decision support module. The system includes three kinds of pipes, steel pipes, cast iron pipes and PE pipes, two laying methods of buried and erected pipes, and pipeline ancillary equipment such as valves, condensate tanks, compensators, etc., including most forms and types of urban gas pipeline systems. part. Each module of the present invention is established on the basis of detailed investigation of the operation conditions of pipelines of several representative gas companies, combined with scientific and re...

AI Technical Summary

Problems solved by technology

Foreign countries started early in pipeline risk management, but they still focus on long-distance oil and gas pipelines. Due to the great differences in pipeline characteristics and operating environments from domestic ones, foreign assessment methods are not fully applicable to domestic ones. The research in this area also mainly focuses on the risk assessment of long-distance oil and gas pipelines, which are very different from urban pipeline networks.

However, the risk assessment of urban gas has just started in China, and no corresponding norms and mature systems have yet been formed.

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