Posted to News on 21st Feb 2018, 00:00
VSD improves boiler range efficiency
An improvement in the pumping accuracy of water feed within industrial boilers has led to Byworth Boilers standardising using an ABB variable speed drive (VSD) to enhance the efficiency of its products.
A boiler needs to provide a constant flow of feed water to its heat exchanger. At the same time, steam is often tapped o meet the demand for process steam in some applications. This causes the temperature, pressure and flow rates of water and steam to constantly change. Yet in some applications a stable water level is critical for boiler efficiency.
Working alongside the ABB authorised value provider, Halcyon Drives, Byworth’s control system engineer, Jason Atkinson, identified the proportional integral derivative (PID) loop control as a way of stabilising the water and steam flow when built within the VSD.
“The ABB drive with PID loop control gives much more control over the water pump, for example allowing us to turn down speed and change valve position to account for differing water feed demand,” explains Atkinson. “We have now standardised on the ABB machinery drive, giving true closed loop control on all our boiler products supplied to our customers.”
