Patent ID: 7455769
Filing Date: 2008-11-25
Classification: A47J,B01D,C02F

Abstract:
1. A filter device for purification and/or for at least partial dealkalization of raw water, comprising: a raw water inlet and a pure water outlet, a filter line A having one flow channel segment and a first filtration segment, and a blending line B having an adjustable distribution valve and a second filtration segment, wherein the filter line A and blending line B are connected to raw water inlet by a separation device that divides the raw water inlet into two partial flows of the filter line A and the blending line B, wherein the adjustable distribution valve is separate from the separation device and located in blending line B downstream from the separation device, and wherein the filter line A and blending line B are connected to a pure water outlet by a connection device, wherein both filtration segments are arranged in an inner container, wherein flow characteristics of components of the blending line B, defined by the pressure loss function Δp is satisfied, whereby G represents a threshold value of the blended condition, Δp A ({dot over (V)} A ) the pressure loss in the filter line A and Δp B ({dot over (V)} B ) a pressure loss in the blending line B, in dependence of the volume flows {dot over (V)} A , {dot over (V)} B in liters per minute of water in the lines A and B.