EuroFlo at CrossRail

เกจวัดแรงดัน10bar retains Tunnel boring machine (TBM) cool by a continuous water supply. The Cross Rail challenge is an east-west rail route that passes beneath town of London utilizing new twin-bore 21km tunnels.
ตัววัดแรงดันน้ำมัน and the tanks are located at the surface; the water is pumped from there down to the shaft and all alongside the tunnel up to the TBM. Once the water has handed via 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 provides 20 l/s to every TBM and 8 l/s is used in the TBM for various works and 12 l/s returns to the tanks. The inlet stress needed ranges between 4 and 10 bar. On one site three TBM’s are operating and the pump system delivers 60 l/s, with the tools consisting of 1 single tank (3200m3) and one industrial pump used per tunnel. On another web site, the installation support’s the excavation with only one TBM with 20 litres/second and the water storage tank capacity of 1100m3
EuroFlo use 37 kW vertical multistage Industrial pumps for the cooling system while the TBM excavates through a significant underground section of the Cross rail project.

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