STORMWATER AND COMBINED SEWER STORAGE TANK VACUUM FLUSHING SYSTEM

摘要

A vacuum type system for flushing a rainwater and combined sewer storage tank is provided to maintain and manage the storage tank conveniently by removing sediment on the bottom of the storage tank promptly and cleanly, and effectively remove the sediment by cleaning sediment settled on the storage tank using waterhead so that a large volume of cleaning water is discharged rapidly through a siphon channel. A vacuum type system for flushing a rainwater and combined sewer storage tank comprises: a storage tank body(1) including a circular water storage tank(13) which has an inflow pipe(11) installed on one wall surface thereof, of which a bottom(13a) is inclined, which has a water collecting groove formed along a periphery thereof such that a bottom of the water collecting groove is inclined to a drain unit(17) and which has a bypass pipe installed on an inner part thereof, and a cleaning water tank(21) which has a housing space(21a), which is set up on the center of the bottom of the circular water storage tank, and which has a plurality of holes(21b) formed along a periphery of a lower part thereof; a siphon channel(S) which is formed on the bottom of the circular water storage tank to surround the holes of the cleaning water tank, and which has an annular groove formed on one side thereof such that the annular groove has an inclined plane; and a vacuum unit(200) which is installed in an upper part of the cleaning water tank and connected electrically with sensors(101,103,105), which sucks sewage in the circular water storage tank into the cleaning water tank through the holes and the siphon channel, which maintains a vacuum state in the cleaning water tank to store the sucked cleaning water, and which discharges cleaning water onto the bottom of the circular water storage tank by releasing the vacuum state of the cleaning water tank when sewage in the circular water storage tank is discharged.