The EuroFlo Industrial Pump system retains Tunnel boring machine (TBM) cool by a steady water supply. เกจวัดแรงกด is an east-west rail route that passes underneath the town of London utilizing new twin-bore 21km tunnels.
EuroFlo pumps and the tanks are located on the surface; the water is pumped from there right down to the shaft and all alongside the tunnel up to the TBM. Once the water has passed through the TBM system the remaining water comes again by way of a filtration system to the tanks on the surface, out of the tunnel.
The water circuit supplies 20 l/s to each TBM and 8 l/s is used in the TBM for various works and 12 l/s returns to the tanks. The inlet pressure wanted ranges between 4 and 10 bar. On one website three TBM’s are working and the pump system delivers 60 l/s, with the equipment consisting of 1 single tank (3200m3) and one industrial pump used per tunnel. On one other web site, the installation support’s the excavation with only 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 part of the Cross rail venture.
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