Cooling Water Systems

Thermal power plants require an effective cooling system in order to convert the used steam into liquid condensate downstream of the turbine (condenser). To operate the cooling system affordably, complex chemical water treatment is required. Cooling towers eat up plant and operating costs and require intensive maintenance in order to avoid expensive downtime for the entire power plant. The main difficulties are scaling, corrosion, and the biological growth of algae and bacteria.

Key Facts About the Application

Application

3 applications (1. Checking the dissolved oxygen (DO), 2. Checking the pH value and conductivity, 3. Checking conductivity) at multiple measuring loops

Sector

Power plants in combined cycle operation

Main Requirements

Boiler scale formation, corrosion, and biological growth from algae and bacteria.

Acid and biocides in the medium.

Measured Parameters

pH, conductivity, and ORP

Why Knick?
Knick offers an extendable modular fitting system with extremely corrosion-proof materials and matching sensors for demanding conditions. With multi-faceted Stratos Multi industrial transmitters, different parameters can be monitored using one device.

Associated Products

Sensors

Analog and digital Memosens sensors for measuring pH, ORP, conductivity or oxygen

SE555 pH Sensor | VP | 120 mm | Ex | Sterilizable | For aggressive media

Product number:

SE555X/1-NVPN

Measuring Range: 0 … 14 pH

Process Connection: PG 13.5

WA130 SensoGate Retractable Fitting | Modular | Pneumatic | For Uniclean and Unical

Product number:

WA130

Approvals: ATEX

Explosion protection: Yes

Operation: for cCare

Stratos Multi E401N Multiparameter Transmitter | Memosens/Analog Sensors | 1-Channel | HART | 2x 4…20 mA Outputs

Product number:

E401N.010

Communication (Output, Digital): HART

Current outputs: 2 Outputs

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.

Ion Exchanger Systems

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

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.

Download now

Overview of specific applications and product solutions in different areas of power plants.

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