US 12,017,936 B2 · Mineralization cartridge and method for the operation thereof

Abstract

The invention relates to a method for operating a water filter cartridge in a pipe, said water filter cartridge having a housing in the form of a pressure vessel, and an inlet and an outlet for water, characterized in that a main flow of water to which minerals are added is conducted through a main pipe inside the pressure vessel, and a dosing flow of concentrated salt solution is conducted through a dosing pipe, wherein the dosing pipe branches off from the main pipe and passes through a reservoir of constant volume and in which there is a concentrated salt solution consisting of sulphate salt, chloride salt and/or hydrogen carbonate salt, wherein the part of the dosing pipe extending from the reservoir leads into the main flow at a dosing point through a dosing opening with a constant flow cross-section, and wherein a resistance section which is situated upstream of the dosing point in the main flow is used to set the flow resistance in the main flow such that a pressure difference results between the main flow and the dosing flow and causes a volumetric flow rate of the dosing flow of salt solution which is substantially proportional to the main flow, through the dosing opening into the main flow.

Claims21

Dependent claims

A method for operating a conduit-connected water filter cartridge having a differential pressure vessel housing with an inlet and an outlet for water, wherein the improvement comprises:

(a) conducting a main flow of water through a main conduit;
(b) providing a dosing flow through a dosing conduit wherein the dosing conduit branches off from the main conduit
and leads to a constant volume dosing vessel which contains a salt selected from the group comprising a sulfate salt, a chloride salt and/or a hydrogencarbonate salt and, wherein an exit of the dosing conduit departs from the constant volume dosing vessel into the main flow at a dosing point via a dosing opening having a constant flow cross section,
(c) and wherein a first flow resistance in the main flow is set by a granular material forming a first resistance section in the main flow, which is arranged upstream of the dosing point in the direction of flow, and a separate second resistance section, having a resistance layer and/or a capillary, in the dosing flow, and introducing a water feed from the conduit-connected water filter cartridge to provide a differential pressure between the main flow and the dosing flow, said differential pressure
provides a volume flow of the dosing flow of a salt solution, through the dosing opening that opens into the main flow, which is substantially proportional to the main flow.

2 more elements

A water filter cartridge, for a conduit connection comprising:

(a) a differential pressure vessel housing with an inlet and an outlet for water;
(b) a main conduit for conducting a main flow of water;
(c) a dosing conduit branching off from the main conduit for conducting a dosing flow to a salt,
(d) a storage vessel of constant volume which contains the salt selected from a group comprising a sulfate salt, a chloride salt and/or a hydrogencarbonate salt, with the dosing conduit from the storage vessel connected to the main flow with a dosing point at a dosing opening having a constant flow cross section;
(e) a granular material forming a first resistance section is arranged in the main conduit upstream of the dosing point in the direction of flow;
and
(f) a second resistance section in the dosing flow created by a resistance layer and/or a capillary to provide a differential pressure between the main flow and the dosing flow
and provide a substantially proportioned a volume flow of the dosing flow of the salt through the dosing point into the main flow.

5 more elements

Dependencies are inferred from the claim text.

Mineralization cartridge and method for the operation thereof

Life of this patent

Mineralization cartridge and method for the operation thereof

Life of this patent

Abstract

Claims21