提出了一种基于延时模拟的供水管网可靠性评估模型。该模型不仅考虑到一天内用户用水量的变化,而且考虑到管网组件故障的随机性,并采用随机模拟的方法对各个节点和供水管网系统的可靠度分别进行计算,能够较为客观、真实地反映供水管网系统的可靠程度。模型的实例应用结果也证明了其实用性和合理性。 A model of water supply network reliability assessment based on delay simulation is proposed. The model not only takes into account the change of users’ water consumption in a day, but also takes into account the randomness of the failure of the pipe network components and uses the stochastic simulation method to calculate the reliability of each node and the water supply pipe network system respectively, which can be more objective and true To reflect the reliability of water supply pipe network system. The results of application of the model also prove its practicability and rationality.