FIELD: fuel burning equipment. SUBSTANCE: multifuel burner has air conduit housing gas feeding duct with collector and fuel atomizer and embrasure anchored in upper part of air conduit. Telescopic embrasure includes at least two adjustment rings and is fitted with mechanism lifting rings installed in body of embrasure on thrust plate fixed on casing of air conduit. Mechanism lifting rings comes in the form of three distribution shafts as minimum arranged in symmetry and carrying cams and shaft rotating mechanism. Height of cams of lifting mechanism is determined from relation where θ- is divergence angle of embrasure; Dn is outer diameter of n-th lifted ring, mm; d is diameter of air conduit, mm. Cam of each distribution shaft contacts proper adjustment ring and shaft rotating mechanism interacts with distribution shafts. Shaft rotating mechanism is made in the form of gear transmission. Invention makes it possible to reduce egress of nitrogen oxide up to 62.0 mg/cu m thanks to increased heat removal from high-temperature zone of burning of flame located in embrasure. EFFECT: reduced egress of nitrogen oxide. 2 cl, 3 dwg
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Authors
Dates
2002-02-10—Published
2000-08-10—Filed