SEWERAGE DROP STRUCTURE Russian patent published in 2000 - IPC

FIELD: devices for discharge of sewage waters by sewerage nets, transportation by gravitation water lines and main water supply systems of potable water. SUBSTANCE: device may be used in amelioration systems and water development works. The sewerage drop structure is made in the form of vertical sewerage well with supplying header and hydraulic-jump dissipator located in well base, vertical wall with staggered projections and directed towards supplying header. Projection are located at obtuse angle to one another. Face surface of projections has curved spiral guides passing into conductors located in height between projections and made in the form of spiral of strip of sheet springy steel whose inside accommodates vibration catcher in the form of dovetail and is connected at well base with circular groove and with receiver of impurities. EFFECT: higher effect of energy dissipation of falling liquid and separation of solid phase from liquid to exclude abrasive effect of solid phase exerted on structural components of device, and improved ecological conditions in water basin. 5 dwg