The EuroFlo Industrial Pump system retains Tunnel boring machine (TBM) cool by a continuous water provide. ไดอะแฟรม is an east-west rail route that passes beneath the city of London using new twin-bore 21km tunnels.
EuroFlo pumps and the tanks are positioned at the surface; the water is pumped from there all the method down to the shaft and all alongside the tunnel as much as the TBM. Once the water has passed via the TBM system the remaining water comes again by way of a filtration system to the tanks on the floor, out of the tunnel.
The water circuit offers 20 l/s to every TBM and eight l/s is used in the TBM for different works and 12 l/s returns to the tanks. The inlet strain wanted ranges between four and 10 bar. On one site three TBM’s are working and the pump system delivers 60 l/s, with the tools consisting of one single tank (3200m3) and one industrial pump used per tunnel. On another website, the installation support’s the excavation with just one TBM with 20 litres/second and the water storage tank capability of 1100m3
EuroFlo use 37 kW vertical multistage Industrial pumps for the cooling system while the TBM excavates through a major underground section of the Cross rail challenge.
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