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Corner-Fired Warmup Gun System - 21977 #/%. #/2.%2 &)2%$

Smokeless Igniter Technology . This technology utilizes uniquely designed internal-mix atom-izers and low pressure drop flame stabilizers. The flame stabilizer is designed to fit the existing warmup gun buckets without modification. If no corner-fired oil guns exist, auxiliary air buckets can be modified to accept the oil gun flame stabilizer and CF igniter. The combination of properly designed atomizers and flame stabilizers assures reliable light-off, stable and attached flames, and no smoke (opacity <5%).

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COEN’s Corner-Fired (CF) Oil Warmup Gun is a low-cost performance upgrade for installation in the corner windbox of tangential-fired boilers for boiler warmup, main burner light-off, and main burner stabilization. The CF igniter was developed as a direct replacement for all types of existing warmup oil guns. Designed for a minimum of NFPA Class 1 service, the CF warmup gun allows for continuous operation with a heat input rating up to 80 MMBtu/hr.The COEN CF Warmup Gun is a proven solution for overcoming many com-mon ignitor operating problems. The warmup gun provides reliable light-off, smokeless operation (low opacity), short flames with no impingement on furnace tube walls, complete fuel burnout, no overheating of downstream fuel buckets, and minimal maintenance. The igniter can be equipped with a high energy spark as an option. This “Direct Ignition” assembly can be used to replace existing warmup guns and eliminates the need for sidewall horn igniter systems. The COEN CF Warmup Gun is also available with an op- tional retract system. The CF Warmup Gun incorporates COEN’s patented

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COEN’S CF WARMUP GUN FEATURES

• Smokeless Atomizer for Low Opacity• Heat Inputs up to 80 MMBtu/hr • Continuous Operation • Retractable or Non-Retractable Designs• Option for High Energy Spark• Eliminates Sidewall Horn Igniters• Flexible Components Accommodate Burner Tilt• Adapts to Existing Oil and Air Pressures • No Special Cooling Air or Blower Requirements• Works with Any Type of Flame Scanner