Patent ID: 8118477
Filing Date: 2012-02-21
Classification: B01F,Y10T

Abstract:
1. A system comprising: a municipal water supply reservoir; a variable volume of water held by the reservoir, wherein the volume of water varies between a low water level and a high water level as defined by a surface of the water; an inlet pipe through which water enters the reservoir; at least one inlet nozzle located below the low water level to be submerged in the water and communicating with the inlet pipe, wherein the at least one inlet nozzle includes a reducer, an elongated nozzle pipe mounted to an exit end of the reducer, and a duckbill check valve mounted to an exit end of the nozzle pipe, the at least one inlet nozzle being orientated and configured to discharge a turbulent jet flow of water from the inlet pipe upward toward the surface of the water in the reservoir such that the turbulent jet flow reaches the surface of the water in the reservoir; and an outlet section including a plurality of low loss contraction nozzles through which water is drained from the reservoir, the plurality of contraction nozzles being located at an elevation lower than the at least one inlet nozzle and centrally within the reservoir at such elevation, wherein the plurality of contraction nozzles are orientated in radial directions angularly spaced from one another by approximately equal angles.