Wood Fired Boiler RetrofitHigh Pressure Steam BoilerCDI ControlsLow NOx BurnersUtility Boiler Solutions
A large manufacturer of wood based products came to Combustion Designs, Inc. for solutions to their combination wood and natural gas fired boiler. The problems included poor fuel control during both natural gas and wood firing, unreliable and obsolete components including the burner management system, and inefficient combustion. These problems caused lost production and lost boiler efficiency. To make this project even more difficult only two weeks were allotted to complete the installation of the project.

Combustion Designs, Inc. designed and engineered solutions and offered a turnkey proposal including installation and project management to assure a successful outcome. The wood feed system was removed and re-designed to assure good combustion and flame retention. New main and pilot natural gas trains were designed and installed. All new safety limits were supplied and installed. New furnace observation ports were installed. A new control panel was designed for the boiler control and burner management system. An operator interface was developed using Wonderware to support the plant’s needs. All data is available for reporting and history.

To meet the plant’s standards Modicon PLC’s were selected for the Boiler Control and the Burner Management System. All control programming and equipment selection was designed to meet all NFPA and FM standards. Dual flame scanners were utilized for reliability. Control was developed to allow for fuel switching between wood or natural gas and dual fuels. A minimum stabilizing natural gas firing system was designed and built for periods of poorer quality wood fuel.

Combustion Designs, Inc. met the challenge. All combustion related problems were eliminated. Boiler operating efficiency increased. Boiler downtime decreased and the boiler is operating safely under the watchful eye of the new Burner Management System.

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