The SmartSootblower dual motor long retractable sootblowers are designed to accept input from the existing/future sootblower control platform and are equipped with the capability to be operated in a variable traversing and rotation speeds. Varying rotation speed throughout the cycle will minimize jet impingement on high stress locations and concentrate cleaning where needed. The operator would select which zone(s) require aggressive cleaning and which zones are low fouling areas. In each zone one can select the desired traverse speed and helix. Future integration of SmartGauges would provide automatic control of cleaning effectiveness for optimum performance. With the SmartSootblower sootblowers we can vary the traverse and rotation speed independently depending on the location of the blower in relation to the slag deposits. This type of control offers many advantages over standard operation:
- The operator can select how aggressive the blower should clean throughout the travel of the unit.
- Speed and direction control allow the operator to speed up or slow down the blower to perform repeating cleaning in an area without going to full retract position and starting over again. For instance, the blower can be set up via the local control panel to traverse in to the full insert position, back out for say 5 feet and go back in again to the full insert position. This method of control allows the plant to customize or focusˇng cleaning in known areas of ash buildup.
Separate motor for traverse and rotational movements of the lance. Dual motor gear assembly allows the speed ratio control for sootblowing optimization. This feature provides the variable helix and oscillation controls for a customized sootblowing.
Encoder provides an accurate position feedback to the control system. Individual encoder feedback signal for traverse and rotation motors. The system derives the locations (depth and angle) of the blowing nozzle using the encoder signals.
Proximity probe is mounted at the carriage assembly. Proximity probe detects the targets when the nozzle's angular position is 0' and 180'. The system utilize the proximity probe signal along with the rotational encoder signal to define the accurate position of the nozzle angle.