| 摘要 |
A self erecting flood barrier has a chamber 1 having a drainage channel 3 therein. A movable barrier 4 is restrained by a central support means 17 and the side walls 2 of said chamber. Buoyant devices 5 allow the barrier to rise Figure 2, as flood water enters the chamber via a drain 11. A flexible seal 18 may be provided on the barrier, as water enters the chamber the seal is forced against the chamber, at the top of its stroke the seal 18 is tight against the chamber wall 19, 20. The barrier may be used for the generation of electrical power. As the barrier rises a vacuum is created thereby drawing flood water into the hollow interior of the barrier and chamber as said barrier rises. As flood water rises, a sealing element 28 Fig 10 may be pushed against a corresponding seal 13 thereby raising said barrier and creating said vacuum. The seal may have a means therein to allow the release of water from the chamber, said water acting on a device to generate power which may be electrical. In alternative embodiments the water inlet to the barrier may be remotely located via a drain / pipe 35, Fig 13. A siphon 38 Fig 14 may be used to suck water from a remote location using the suction generated as the barrier rises. A telescopic barrier may be provided Fig 15. The barrier may be connected to an existing drain network. |
