PUMPS, VALVES & ACTUATORS FEATURE SMARTER SEWAGE PUMPING
A successful trial of Xylem’s Flygt Concertor intelligent pumping system at Northumbrian Water has resulted in cost savings, trouble-free pumping and a smarter approach to maintenance
W
hen looking to invest in technology to improve asset resilience, increase
operational efficiency, reduce electrical consumption, deliver seamless capability to accommodate for future increases in pumping demands and make the wastewater infrastructure network smarter, cleaner and safer, Northumbrian Water decided to trial what is said to be the world’s first wastewater pumping system with integrated intelligence – Xylem’s Flygt Concertor. Northumbrian Water
supplies potable and raw water to 2.7 million people across 18,593 miles of sewer network in the North East. As a business, it is committed to becoming the national leader in water provision and actively seeks to adopt new innovations as part of its ‘RUN2Innovation’ forum. For this reason, Northumbrian Water decided to
investigate ways in which smart technology could be employed to better manage Butterknowle Green Sewage Pumping Station. The key aims were to improve efficiency of the sewage works, while reducing unexpected breakdowns, and in turn, minimising the number of site visits required by staff and disruption to the general public. Flygt Concertor was chosen, as it is a fully-
integrated system with an efficient motor and impeller. Designed to work independently, its intelligent XPC functionality means it is capable of sensing the operating conditions of its environment and adapting its performance in real time to suit the present needs of the station. Thanks to the Adaptive N-hydraulics and anti-
blockage protocols, the pump actively detects and prevents potential blockages by running the impeller back and forth repeatedly under controlled conditions until debris is cleared. This reduces downtime and operator callouts, as the Flygt Concertor will carry out the anti-blockage task up to 22 times before alerting an engineer. Data from the Concertor XPC provides the water company with real time performance data including hours run, number of starts, kW consumed, current power, number of anti-clogging cycles, number of sump cleaning cycles and importantly the asset detail and serial number. This provides Northumbrian Water with the facility to remotely track any changes of pump automatically, monitor the health of the station through the telemetry network and make smart decisions on service/operational needs. Chris Harvey, market development manager at Xylem UK, said: “We installed the Flygt Concertor
in May 2017 for a six month trial and from then, until November, it ran the station alone, with one of the original pumps as a high level back-up only. Despite the pumping station being known for its high rag concentration, the site received no interventions or reactive visits during the trial.” Overall, Flygt Concertor conducted
an average of 1.89 preventative anti- blockage cycles a day and ran sump and rising main cleaning programs at least once a day. This reactive maintenance measure was crucial, as previously operations staff would physically lift the
pump from the wet well and lay it on its side to clear
blockages. Not only was this
disruptive to the Northumbrian Water team’s planned work but also a potential cause of nuisance to the general public where the station is located. Other benefits of the Flygt Concertor include its
quick and easy installation and at Butterknowle Green no alterations to the wet well or guide rail systems were required. Kenn Ayre, mechanical team leader for
Northumbrian Water central region, said: “When we started the trial, we were targeting electricity savings of around £120 per month - however, in reality, we achieved almost 30% greater power savings than expected - over £2000 a year. “These results speak for themselves. Smart
technology definitely has a place within modern infrastructure, and it’s something we’re looking forward to investigating further throughout 2018.” Commenting on the success of the trial, James
Potter, maintenance manager for the Northumbrian Water central region concluded: “We were intrigued to see what Flygt Concertor could do. As a business we are challenged to improve our efficiencies, reducing costs, protecting the environment and minimising any impact we may have in disrupting our client – the public. This is why we needed to make such a significant step change in our wastewater pumping approach with the trial of the Flygt Concertor. “Not only is it simple to install with very few
components, it can also deliver lower capital cost due to the small footprint of the control system. It’s proven ability to deliver trouble-free pumping means my team can now focus on delivering the benefits of a planned preventative maintenance program across an ever expanding asset base.”
Xylem
www.xylem.com/en-uk/brands/flygt
/ PROCESS&CONTROL
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PROCESS & CONTROL | NOVEMBER 2018 15
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