Pressure-measuring point optimizing and arranging method serving water supply pipe network pipe-bursting monitoring

Abstract

The invention discloses a pressure-measuring point optimizing and arranging method serving water supply pipe network pipe-bursting monitoring. The pressure-measuring point optimizing and arranging method comprises the steps that (1) a datum working condition is selected, and the pressure values of all nodes are calculated based on monitoring data; (2) a pipe bursting model is established, virtualnodes are sequentially added in the middles of all pipe sections, pipe bursting is simulated by adopting a jet flow mode, the jet flow coefficient C value is input, and the pressure values of the corresponding nodes are sequentially calculated after pipe bursting occurs on all the pipe sections; (3) the pressure change value is calculated, a pressure change matrix is obtained, a 0-1 pipe burstingjudging matrix is obtained by comparing the pressure change matrix with the pipe bursting threshold, and the 0-1 pipe bursting judging matrix is subjected to order descending according to rows and sorting to obtain an order descending matrix; (4) the order descending matrix is retrieved from large to small according to a set principle, if the condition is met, a pressure monitoring point is newlyadded; and (5) when the situation that the monitoring point only can monitor a newly-added pipe bursting pipe section is searched, calculation is terminated, the pressure monitoring point ID is output, otherwise, returning to (4) for continuing to calculate is executed, and a new monitoring point is searched.

Description

technical field [0001] The invention belongs to the technical field of urban water supply pipe network monitoring, and in particular relates to an optimal layout method of pressure measuring points serving for the burst monitoring of the water supply pipe network. Background technique [0002] The arrangement of monitoring points of the water supply pipe network refers to the installation of a certain number of pressure and flow sensors in the water supply pipe network, which are used for pipe network model calibration, operating condition detection, pressure management, leakage control, pipe burst monitoring and early warning, etc. [0003] At present, the optimal arrangement of pressure monitoring points in the water supply pipe network mainly includes fuzzy clustering and sensitivity analysis, both of which are applicable to the optimal arrangement of monitoring points for monitoring the state of the pipe network under normal working conditions. Some researchers have also ...

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Problems solved by technology

[0004] However, none of the above methods provides a monitoring point layout method suitable for monitoring pipe bursts in water supply networks combined with pipe burst data.

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