Steam network control
Optimation has developed a completely new concept for steam network control, which means that all operating modes are handled in a uniform manner The system can handle large flucutations in the net without disrupting boilers and turbines.
The steam control system consists of a minimum number of controllers, one per steam net, which controls several valves through a distribution program. Since only one controller per network is used, the pressure can be kept much evener than if several controllers, separated with different setpoints, are used.
The same control strategy is used regardless of operating conditions. Current operating mode as well as current status are shown in a general overview. The operator has good information about how the steam network control works in different operating situations, enabling good understanding of the system.
The concept is flexible and can be adapted to the conditions that apply in each plant.
To compensate for variations in heat output, a steam or hot water accumulator can be used. It can even out variations in both production and consumption, at the same time. A well-utilized accumulator in connection with district heating networks or paper mills smooths the operation of boilers and turbines, so that they can run optimally.
Optimation’s control also makes it possible to further increase the value of an accumulator through model-based prediction and statistical analysis of the current usage pattern. The accumulator can thus be used more efficiently, enabling an even smoother operation of steam production units.