PROCESS ANALYTICS

Ion Exchanger Systems

To produce pure boiler feed water, an ion exchanger with cation and anion tanks and a mixing bed for subsequent polishing can be used as an alternative to a reverse osmosis system. Pressure vessels made of steel and filled with ion exchanger resins absorb all the salt components (cations and anions) from the feed water. Ion exchanger resins must be regenerated using strong acids and alkalies.

Energy

Key Facts About the Application

Sector

Production of pure boiler feed water

Application

2 applications (1. Conductivity measurement downstream to the cation exchanger, 2. Conductivity measurement downstream to the anion exchanger)

Measured Parameters

Conductivity

Main Requirements

Measurement in water with low and neutral pH value

Measurement in Cation-Free and Demineralized Water

Description of application

Conductivity and cation conductivity must be measured downstream to each vessel. In order to reduce total costs and shorten the downtime required for regeneration, these measurements are obligatory for efficient system operation.

Requirement of the application

The amount of chemicals used and
wastewater produced can be minimized through optimized management.

Why Knick?
The conductivity sensor recommended for this application, SE604 from Knick, is the only sensor with removable outer electrodes for easy cleaning and handling. SI/SF (system integrators/system manufacturers) and plant manufacturers appreciate our reliable, well-designed, and precise solutions.

Associated Products

Stratos MS A405N Multiparameter Transmitter | Memosens Sensors | 4-Wire

Product number:

A405N

SE604 2-Electrode Conductivity Sensor | 7-Pole | Measuring range from 1 nS/cm to 1000 μS/cm

Product number:

SE604

ARF200 Flow-Through Fitting | Stainless steel or Hastelloy C22 | One sensor | Process connection via cutting ring coupling

Product number:

ARF200

Associated Industries and Applications

Energy

In power plants, water is used in many processes with completely different requirements: for example, for steam generation, cooling, and flue gas scrubbing.

Boiler Feed Water Circuits

Measurement of pH values, dissolved oxygen, and conductivity as key parameters in the boiler feed water circuit.

Cooling Water Systems

Measurement of pH value, redox potential, and conductivity in cooling water, which has to be continuously treated with acid and biocides.

Monitoring Steam Generators

Since steam generators fulfill application-critical functions and the cost of their downtime or replacement is extremely high, damage caused by wear should be prevented by monitoring water quality.

Flue Gas Desulfurization

pH value measurement in the pre-scrubber, the neutralization phase, and the lime scrubber as part of the flue gas desulfurization process in power plants.

Combined Cycle Power Plants

Measurement of pH values, dissolved oxygen, and conductivity in boiler feed water, steam, and condensate in combined gas turbines in power plants.

Water Treatment Systems

Measurement of pH value, dissolved oxygen, and redox potential in various applications during the water treatment process of power plant wastewater.

Reverse Osmosis Systems

Reverse osmosis systems are used for water treatment in a wide range of industrial applications. The main application is industrial saltwater desalination.

Energy Industry Brochure

Overview of applications and product solutions in power plants

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