Determination of a conversion factor relating the conductivity and the hardness of water

A concentration and measurement technology, used in water hardness testing, water testing, descaling and water softening, etc., can solve problems such as inaccuracy

Inactive Publication Date: 2015-04-29
BRITA GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although their contribution to the measured conductivity has been removed by the difference between the values

Method used

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  • Determination of a conversion factor relating the conductivity and the hardness of water
  • Determination of a conversion factor relating the conductivity and the hardness of water
  • Determination of a conversion factor relating the conductivity and the hardness of water

Examples

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Embodiment Construction

[0068] The example of a liquid treatment system for softening water will be used below. The apparatus is equally applicable to the treatment of other types of liquids, and the methods discussed below for determining the measure of hardness can also be used to determine components that may be removed by liquid treatment components of liquid treatment equipment for handling such other liquids. points of concentration.

[0069] pass figure 1 The example shown includes an inlet 1 for receiving untreated water and an outlet 2 for providing water with a desired level of temporary hardness. The inlet 1 may be connected to a source of untreated water, in particular a tap water source. The outlet 2 may be connected to an appliance such as a steamer, a dishwasher or an appliance for preparing beverages, eg a coffee machine. The fluid treatment arrangement comprises a fluid treatment device 3 configured to remove, at least to some extent, the temporary hardness of water passing throug...

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Abstract

Method and apparatus for determining the hardness of water. Water is separated into two portions. One portion is treated in an ion exchanger while the other portion bypasses the treatment unit. Both portions are mixed together again to obtain water of defined hardness. The conductivity of the water for different blending ratios is determined and the change of conductivity with the blending ratio is used to determine a conversion factor for the conversion of conductivity values into hardness values.

Description

technical field [0001] The present invention relates to a method of determining a measure of the concentration of a component that can be removed from a fluid by a fluid treatment component of a fluid treatment apparatus, comprising the use of a fluid treatment device comprising: [0002] an inlet for receiving untreated fluid; [0003] export; and [0004] At least one fluid path between the inlet and the outlet, the fluid path comprising at least one fluid treatment component for treating fluid to remove at least to some extent at least some of the fluid passing through the fluid treatment component Types of components, the method includes: [0005] obtaining at least two measured values, each representing a corresponding value of a parameter of said fluid, said value being in part dependent on the concentration of a component removable by the fluid treatment component, [0006] wherein said measurements relate to measurements performed with different ratios of fluid, sai...

Claims

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Application Information

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IPC IPC(8): G01N33/18C02F1/42
CPCC02F1/42C02F5/10C02F2209/005C02F2209/055C02F2301/043G01N33/1853
Inventor P·维德纳B·康拉德特T·内格尔
Owner BRITA GMBH
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