Many commercial and institutional facilities use boilers to produce steam or hot water for heating. Boilers are typically major users of energy, therefore maximizing fuel efficiency is critically important.
Experitec specializes in providing Emerson instrumentation, valves and control systems for medium and high-pressure commercial and industrial boilers that produce steam above 15 psig or hot water above 160 psig;or 250°F.
Our DeltaV Standard Boiler Control Solution provides a pre-engineered control strategy for gas-fired or oil-fired (and optionally dual fuel combination) boilers. The configuration complies with NFPA 85 - Boiler and Combustion Systems Hazards Code and uses Emerson's best engineering practices. It includes feedwater, single element and three element drum level controls, plus combustion controls with a boiler master demand, parallel metered air and fuel, and oxygen trim with dynamic excess air correction. Steam header pressure control is standard with the solution and additional boilers can be easily added.
How can controls improve the boiler process?
Improvements are often needed to reduce cost of fuel, stabilize upsets in operation, or to comply with NFPA code requirements. Emerson's DeltaV Standard Boiler Control Solution addresses these challenges and many more including the ability to:
Feed water supply control valves and measurement instrumentation.
- Improve reliability, response, and turndown
- Adjust quickly and accurately to variations in demand
- Reduce fuel usage and lower emissions
- Increase operator confidence and operate boiler closer to design capabilities
- Reduce control system engineering and startup costs
A feed water supply is essential for boiler operation. For a hot water boiler, the inside should be completely filled with water. For a steam boiler, there should be a headspace left at the top for steam to form. We provide industrial quality Fisher control valves and Rosemount measurement instrumentation for these critical applications. Feed water components usually include:
- Fisher easy-e™ globe style feedwater control valves with Rosemount level instruments
- Fisher pressure reducing valves with Rosemount pressure transmitters
Other boiler related applications ideally suited for Fisher control valves and Rosemount measurement instrumentation include boiler drum level, condensate recovery, and deaerator steam and level control.
Boiler fuel supply gas regulators.
You can reduce unplanned shutdowns by ensuring accurate and reliable fuel supply to your gas fired boilers, hot water heaters and air handlers with fast responding and easy to maintain Fisher fuel and pilot gas regulators.