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某市供水管网典型管段事故评估及优化改造方案选择 被引量:8

Accident Assessment and Choice of Optimization Reform Scheme of Typical Pipeline in Urban Water Supply Network
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摘要 针对目前供水管网中部分管道爆管隐患大、事故率高等问题,以某市典型供水管道L-40794为例,对其进行优化改造。基于水力模型,从爆管、消防能力和事故影响范围三方面进行分析,得出每条管道的单项评分及综合评分,根据综合评分排序筛选出相对危险的管道。针对危险管道提出两种改造方案并进行水力模拟。对比模拟结果发现,相较方案1,方案2实施后最不利点压力明显提升,满足了用户对水压的要求,为水力模型应用于供水管网优化改造提供了依据。 Facing the problem of exploding risk and high rate of accidents of some pipelines in the water supply network,take pipeline L-40794's reconstruction programs as an example.Based on the hydraulic model,individual score and comprehensive score of pipelines are gained from aspects of pipe-broken,the ability of fighting fire and accident influence areas.The relative risks of pipe can be found according to comprehensive scores.Two reconstruction projects of pipeline L-40794 are proposed.Comparing with hydraulic simulation results of two programs,it shows that applying program 2can increase the most unfavorable point pressure,which meets the user's need for water pressure.It provides basis for applying hydraulic model to optimize water supply network.
出处 《水电能源科学》 北大核心 2016年第1期101-103,共3页 Water Resources and Power
基金 国家十二五科技支撑计划项目(2014ZX07406003)
关键词 供水管网 管道评分 水力模型 优化改造 water supply network scoring pipeline hydraulic model optimization reform
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