Investment in power station components like turbines for maintenance work and other reasons are all very costly. Reliable measurement technology increases the availability of the entire plant.
Monitoring the salt or mineral concentration in the circulating water is especially important because minerals quickly build up on heating surfaces, in pipes and on turbine blades, leading to increased wear. If an incident occurs, this could cause the entire facility to grind to a halt, and the cost of the resulting damage can quickly run into millions. Efforts must therefore be made to remove as much mineral content from the water as possible using ion exchangers.
The functionality of the exchanger can be continuously monitored by measuring the conductivity or the silicatecontent, for example (Polymetron 9210).
The boiler is used to convert the treated water into steam before it is transferred to the heart of the facility: the turbine. The turbine drives a generator, which produces electricity. The steam is then cooled in the heat exchanger and converted to condensate. Residual oxygen in the water can cause corrosion, so this has to be monitored.
The easiest way of doing this is to use the K1100 optical oxygen sensors and the portable Orbisphere 3100. Both are based on the innovative LDO technology.
The substantial amounts of heat generated in the process are dissipated rapidly with cooling water. The quality of the cooling water must also meet certain requirements. The operating life of the facility can be optimised by complying with these requirements and continuously monitoring critical parameters. This avoids the need for premature repairs and maintenance work.
Before the water leaves the plant, it has to be tested to make sure the maximum content levels are observed for certain substances, for example phosphates and ammonium (from flue gas desulphurisation). We also provide a range of different automatic analysers for this purpose.