燃气管网抗震分析中的阀隔离区搜索算法

A valve separated area searching algorithm for seismic analysis of gas pipeline network

破坏性地震发生后,燃气管网系统应急抢修工作的首要步骤是将发生破坏并导致燃气泄漏的管段与正常管段隔离,然后才能开展修复作业。对于大型复杂网络系统,由于管段破坏所形成的需要与系统主体分离的隔离区不能仅凭人工进行判断,必须依靠搜索算法才能确定各个隔离区。本文对阀隔离区搜索方法进行了研究,给出了一个搜索算法,编制了计算软件,并对一假设管网进行了算例分析,验证了算法和软件的可靠性。

After a destructive earthquake, the first step for the emergency recovery Of damaged gas pipeline network is the separation of damaged pipe elements from the main system, and one or some valve separated areas appear. The valve separated areas could not be rejoined with the main system until they are repaired completely. It should be pointed out that the valve separated areas of damaged pipe elements for a simple network are easy to find, as to a large complex gas network, a valve separated area searching algorithm is necessary for quick and correct finding of valve separated areas. The study on valve separated area searching method is conducted here, a searching algorithm is presented, and the software has been developed. The reliability of the algorithm and the software is evaluated primarily by example analysis.