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Innovation in practice

Interesting happenings within the Anglian Water network

Syrinix worked with Anglian Water within their innovation hub ‘Shop Window’, deploying PIPEMINDER-S sensors on a section of PVC pipe with a history of bursts between a pump station and a water tower.

It was soon noted that when pumps were off, pressure was dropping at the pump station, suggesting that water was being lost within the system.

Analysis estimated a leak of 1-2l/s was evident and in reviewing the network pressure profile within Syrinix's RADAR data hub it was possible to triangulate the leak to a specific section of the pipe.

Anglian Water repaired the leak meaning the pressure held stable but there was however a knock on effect to this.

The increase in maintained pressure, following the repair increased the stresses on the (by then) fragile main and three days later the pipe burst.

The onset time of the burst detected at each monitored site, is a function of the distance from the burst and the wave speed of the pipe and by using this together with accurate GIS data it is possible to triangulate the burst location.

The red line shows the pressure dropping when the pumps were switched off

The burst event. The increase in maintained pressure , following the leak repair, is thought to have increased the stresses in the fragile main and heavily contributed to the burst

The exact point at which the burst occurred.

 

Syrinix call this process Event Triangulation and for this burst, the estimated location given to Anglian Water by Syrinix was 22m from the true burst location.

 

“This example opened our eyes to the benefit that permanent high frequency pressure monitoring can provide.

Not only can we identify and solve pre-existing issues such as the leak, but we can then have constant accurate monitoring for future events, such as the burst main.”

Fionn Boyle, Shop Window Project Manager, Anglian Water

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