苏桥储气库高压集输管道的设计安全性

Safety design of high pressure gathering pipeline in the Suqiao Gas Storage

油气管道建设中的安全保证存在两种指导思想:控制管道自身安全性和控制安全距离。根据苏桥储气库的工程特点,基于控制管道自身安全性进行设计,分别从路由选择、管材设计、管道设置、管道敷设、标志桩设置5个设计考虑因素和管道焊接与检验、管道清管、管道试压3个施工验收因素给出保障苏桥储气库高压集输管道安全的设计施工方案,并采用量化风险评价的方法对不同孔径的泄漏后果进行模拟,同时进行失效频率和风险结果分析,指出苏桥储气库高压集输管道的设计方案是可靠的。

During oil and gas pipeline construction, safety assurance is achieved by maintaining pipeline safety and safety distance. According to the engineering characteristics of the Suqiao Gas Storage, and from the prospect of pipeline safety, a design and construction scheme guaranteeing the safety of high pressure gathering pipeline is provided respectively depending on five design considerations（e.g. routing, pipe material design, pipe setup, pipe laying and flag pile set） and three acceptance aspects（e.g. inspection, pipeline pigging and pipeline pressure test）. Moreover, the quantitative risk assessment method is used to simulate leakage consequences at different pore diameters, and the failure frequency and risk consequence are analyzed. It is found that the design scheme of high pressure gathering pipeline in the Suqiao Gas Storage is reliable.