Boiler control

Boiler Control Performance Problems

 

We can solve your boiler control performance problems. Typical problems include:

 

 Preventable boiler trips

 

 Control loops run in manual

 

 Slow ramp rates

 

 Multi-boiler imbalances

 

 Multi-fuel imbalances

 

 Problems handling variable BTU fuels

 

 Problems with controls to handle the unique requirements of your plant (for example, cogeneration).

 

 Control difficulties because cross limits are hit when not near fuel rich conditions

 

 Large cyclic variations in MW output, main steam pressure and drum level

 

 Poor or out-of-date air/fuel characterization

 

 

Boiler Control Loop Tuning Services

 

Often, boiler control performance problems are caused or aggravated by poor controller tuning. Control loops that we tune include:

 

 Furnace Pressure Control

 

 Air Flow, Cross Limiting, O2 or CO Trim, Air/Fuel Characterization

 

 Fuel Flow, Fuel Master, Btu Compensation

 

 Drum Level and Feedwater Control

 

 Superheat Temperature Control

 

 Feedwater pH Control

 

 Reheat Temperature Control

 

 Dearator Level Control

 

 Boiler Masters

 

 Turbine Masters

 

 Unit Management Controls

 

 Turbine Follow

 Boiler Follow

 Coordinated Control

 

 Run Backs And Rundowns

 

 Heater Level Controls

 

We will make sure your controls maximize boiler efficiency and comply with the NFPA 85 code.

 

Additional Services:

 

We have extensive experience in boiler and process control. Some additional services that we provide include:

 

 Boiler start-up tuning and control commissioning

 

 Pre-startup tuning estimates

 

 Dynamic computer simulation of complex systems to test new control approaches and develop optimum controller tuning

 

 Application of advanced regulator controls to improve control performance for more demanding control applications

 

 Preparation of tuning reports documenting results and tests.