Page 114 - Boiler plant and distribution system optimization manual
P. 114
Boiler Tuneup 99
Figure 9.19—Flame is narrow and does not fill the Figure 9.20—Flame pattern with intermittent oil
throat. Possible thin stream of oil present in the mid- slugs coming out of the tip.
dle of the flame.
Problem:
Problem: • Atomizer problem, tip partially plugged, tip
• Low oil pressure delta-p or return oil line worn or other burner tip problem.
plugged.
• Air register open too far.
Figure 9.21—Flame blow off. May be continuous or Figure 9.22—Flame clears throat, but rolls back, im-
pulsating on and off the tip. pinges and rolls up the furnace wall.
Problem: Problem:
• Air register open too far. • Air register closed too far.
• Oil gun positioned too far in toward the furnace.
