Description
This Class I igniter is located in a tilting tangentially fired boiler adjacent to the main fuel nozzle.
As an oil igniter, the unique rear atomizer results in a single tube extending to the one piece tip. This design eliminates the need for atomizer maintenance.
As a gas igniter, the gas is directed to the tip through the single flexible tube. Stabilization is maintained by a 7.5 inch swirler which creates a low pressure zone just down stream of the nozzle. Combustion air is provided from the windbox.
Forney’s Flexible Single Tube (FST) Igniter provides multi-fuel, stable and reliable ignition for tangential burners utilizing a flexible design for optimal ignition with tilting nozzles.
Fuel Types
Light - Medium Oil
Markets Served
Corner fired Utility boiler
• Capacity up to 11Mw
• Air atomised
• Designed for tilting burners
• Low opacity
• Patented protected combustion zone
• Flame detection with UV scanner
• High energy ignition as standard
• Complete stainless steel construction
• Available in any length
• Diameters from 50mm
• Near maintenance-free operation
• Up to 99% reliable ignition
| Fuel: | No. 2 Oil or Natural Gas |
| BTU Rating: | Oil: 10 – 37 MBTU/hr Gas: 10 – 20 MBTU/hr |
| Fuel Pressure: | Oil: 60 – 125 psig Gas: 12 – 25 psig |
| Cooling/Combustion Air: | Flow: 40 SCFM Pressure: 6 WC |
| Guide Tube OD: | 2.38” |
| Mount Tube OD: | 2.88” |
| Length: | As Required, up to 8.5’ |
| Atomizing Pressure: | 20 psig (Differential over oil pressure) |
| Material of Construction: | Guide Tube and Mount Tube, Carbon Steel; Guide Tube Tip and Pilot Area, 304 SST |
| Retract Cylinder Air Pressure: (HESI/oil gun) |
60 to 100 psig |
HESI Specifications
| Input Voltage: | 120 to 240 VAC, 50/60 Hz |
| Input Power: | 120 VAC @ 1.5 A (2-A fuse); 240 VAC @ 0.75A (1-A fuse) |
| Output Voltage: | 2000 VDC |
| Output Energy: | 12 joules per spark |
| Spark Rate: | 3 per second (approximately) |
| Duty Cycle: | 50% at temp 0°F to 135°F (-18°C to 57°C) Ambient |