Temperature controller boosts boiler efficiency
By using the controller to manage up to six boilers, users can reduce energy losses, maintain availability, and prevent plant downtime by selective switching of individual devices for maintenance and repair. Engineers can also ensure the uniform operating time and wear of the devices through cyclical operation. The KS98-1 can be used to switch smaller units on and off in a defined order, according to the energy demand. By exercising precise control over each device, an engineer can achieve the best possible energy efficiency at plant-level while extending maintenance intervals for the control system. Energy demand is determined by a PID controller, which operates the individually-controlled device.
If the control output exceeds pre-set limits, this means not enough or too much energy is available to keep the process value constant. Accordingly, if the relevant set-point has not been reached and the process is responding too slowly, an additional device is switched on or off as required in order to manage demand correctly. The controller also enables automatic correction of control output. After an additional device has been switched on or off, the output of the control-led device is corrected automatically to compensate for the changed energy flow conditions. This ensures linear process response over the entire load range. The 160×80 pixel LCD display of the KS 98-1 enables bar graphs or trend curves to be viewed in high-resolution, while an extensive function library is available to support the engineering of individual solutions, from analogue signal conditioning to digital signal operations, and cascade control systems to complex meshed control loops.
Visit West Control Solutions at www.West-CS.co.uk
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