New Watertube Steam Boiler for University

Location:  State University of New York – Stony Brook Central Utility Plant

Miller Proctor Nickolas and Cleaver-Brooks recently provided a Custom Industrial Watertube Steam Boiler for the campus central heating plant.  The boiler replaced an existing boiler that had reached the end of its useful life.  The boiler produces steam at up to 425 psig to the central heating plants cascade heating system that provides a campus-wide high-temperature hot water loop.  Unique to this project was the fact that due to a restricted rigging path, this boiler was purchased and built in place by Boilermatic Welding of Medford NY.  Boilermatic Welding provided the skilled boilermaker labor to assemble the boiler along with the installation of the economizer, burner, and controls.  The specifics of this boiler are as follows:

• O-Type Industrial Water Tube Boiler with a capacity of 85,000 lb/hr saturated steam at 450 psig.  The boiler pressure vessel is stamped in accordance with ASME Section 1 for a 500 psig design pressure.
• Dual Fuel (Natural Gas / No. 2 Fuel oil) Full Modulating, Low NOx NatCom burner with high turndown performance.
• 100% Welded Membrane Construction.
• Unique hot standby burner and control system to maintain the boiler at operating pressure at all times to allow instantaneous steam production.
• Cleaver Brooks HAWK ICS 5000 Boiler Combustion Control and Burner Management System configured for fully metered combustion control with oxygen trim and variable speed drive control of combustion air fan.
  Two-element feedwater control system
• Integral boiler draft control system.
• Feedwater Economizer