WATER-SUPPLY SYSTEM Russian patent published in 2001 - IPC

FIELD: water delivery to residential and office buildings. SUBSTANCE: system has distributing pipeline joined to hydrant installed on each flush tank and to reservoir with recurrent water outlet through supply pipelines; nozzles; outlet pipeline; cleaning device arranged on supply pipeline and provided with inlet part made in the form of contracting nozzle with inner curvilinear guides and outer annular space; filtering section filled with charge material which ensures chemical and biological pre-purification of water. Outlet pipeline of cleaning device and outer annular space are communicating with recurrent water outlet reservoir. Vibration trap is mounted in internal space of cleaning device; filtering section is arranged around cleaning device and divided into four chambers by means of radial partitions; each of mentioned chambers is filled in layer-by-layer manner with charge material of different kind. Shielding screen and regulating switch are installed in top part of filtering section. Control unit is provided for controlling water supply and its quality in system. EFFECT: improved quality of clean water due to advanced design; improved control of water quality. 3 dwg