The "Vacutrack Pilot" is a pilot that puts the conventional pilot technology using internal or external mixing a thing of the past. With our patented "Vacuum Tracking" system, "Micro Flame Front Ignition" and "Plasma Resonance Flame Detection" all designed by Stackmatch Flare Ignition, Inc. it puts this standalone pilot in a class of its own. Used in many different applications icluding Process Heaters, Process Furnaces, Incinerators and FCC Units has proven this pilot to be effective in many inert and negative pressure atmospheres.
Benefits of the Vacutrack Pilot
- Patented "Micro Flame Front Ignition" (Providing Instantaneous positive ignition)
- Patented "Plasma Resonance Flame Detection" ( Providing instantaneous pilot flame verification for unmanned ignition)
- Patented "Vacuum Tracking" assembly
- Quick start-up time
- Pilot is pre-set for variations for application
- No additional operator adjustments are required
- Minimal maintenance down time
- Easier installation and safer for the operator than ever before
Self-aspirated Pilots using conventional technology are comprised of 3 basic components.
Mixer assembly, comprising of the gas orifice jet and air entry.
Body assembly, employed as the Fuel conduit between mixer and Nozzle.
Nozzle assembly, utilized to orient, stabilize and emit the pilot flame.
Two basic installations are used with conventional pilot and are intended for individual purposes.
(Mixer is External) When the mixer is located outside a heater no appreciable fluting action is expected inside the heater and the pilot will operate using fresh external air.
(Mixer is Internal) When the entire pilot is located inside the heater, suction, blowers or fluting action is expected inside the heater. With an enclosed heater system the internal air must serve as fuel supply for the pilot. In this environment the air can sometimes vary in quality. Oxygen to Nitrogen ratio and temperature fluctuations can cause changes in pilot response.
All self-aspirated pilots use the pressurized gas and the surrounding air as pilot fuel. Using the Venturi Principal the pressurized gas exiting the jet develops a small vacuum around the mixer causing air to enter into the pilot. Under normal operating circumstances this work function measures only 2 (two) water inches. (This is the force necessary to pull 2 (two) inches of water into a straw). With this limited work function any changes in external air pressures exerted at the nozzle area or at the mixer area can quickly destroy the critical air to gas ratio required for continuous pilot flame. The ambient air pressure felt at the mixer and at the nozzle must remain equal or the pilot will become extinguished.
The "Vacuum Tracking" assembly is designed to combine the positive attributes of the two basic installation methods described for conventional pilots. Using no moving parts and operating like a vacuum mirror, this assembly develops an opposing and equal vacuum at the mixer area to oppose the vacuum felt at the nozzle. With the pilot nozzle inserted into the heater (as required by the application) and the with the pilot mixer located outside the heater (to obtain fresh air for the pilot) changes in heater vacuum are totally nullified (from 0 to –30 water inches) allowing the "Vacutrack" pilot to ignite easily and to remain extremely stable throughout the operating range. In addition, because the "Vacuum Tracking" assembly utilizes fresh outside air to function, the air quality remains clean and stable and therefore the pilot is never extinguished.