The EuroFlo Industrial Pump system retains Tunnel boring machine (TBM) cool by a steady water provide. เกจวัดแรงดันลมคือ is an east-west rail route that passes beneath the city of London utilizing new twin-bore 21km tunnels.
EuroFlo pumps and the tanks are situated at 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 handed by way of the TBM system the remaining water comes again through a filtration system to the tanks on the floor, out of the tunnel.
The water circuit supplies 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 pressure wanted ranges between 4 and 10 bar. On one site three TBM’s are operating and the pump system delivers 60 l/s, with the gear consisting of one single tank (3200m3) and one industrial pump used per tunnel. On another website, the set up 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 whereas the TBM excavates by way of a significant underground part of the Cross rail project.