GB1311752A - Ribbon burner - Google Patents

Abstract

1311752 Gas burners J H FLYNN 2 May 1970 21199/70 Heading F4T A ribbon burner 10 comprises an elongate casing 12 including a chamber 14, the chamber being divided into a main gas compartment 18 and a pilot gas compartment 20 by an internal partition 16 extending the length of the burner, part of the casing being formed by peripheral wall parts 32, 34 which converge towards each other at right angles but do not meet; the partition 16 is also formed by two parts 94, 96 which are spaced from and extend parallel to the peripheral wall parts and converge at right angles but do not meet, the gap between the wall parts 32, 34 and partition parts 94, 96 forming a groove 26 in which a flame port assembly is received. The assembly comprises two U-channels 40, 42 and main 36 and pilot 38 flame ribbons and is secured to opposite parallel side walls of the slot 26, the base webs of the channels seating on shoulders formed by the converging partition parts. The assembly seals the pilot compartment from the main compartment and divides the pilot gas compartment into two sections 48, 50 sealed from each other. That part of the burner around the groove 26 is strengthened by three sets of ribs which are spaced longitudinally of the burner, two sets 98, 100 extending between the wall parts 32 and 34 and the partition parts 94, 96 respectively, the third set 102 extending between the two partition parts. A gas inlet 56 supplies a gas/air mixture to the main gas compartment 18, in which the gas is distributed by a baffle plate 76 along the length of the burner to the main flame ribbon 36, secured between the U- channels 40, 42. A gas inlet 60 supplies a gas/air mixture to section 48 of the pilot gas compartment, from which the mixture passes via longitudinally spaced holes 52 in the U- channel 42 to the associated pilot ribbon. The other pilot section 50 is supplied from the main compartment 18 via an aperture (64), the flow being adjustable by a valve plug (66).