FIELD: thermal power engineering equipment. SUBSTANCE: device has plasma-chemical block which is made as plasmatron, ignition vapor fuel nozzle. Plasma-chemical block is located near mazut oil. Ignition vapor fuel nozzle is inclined towards plasmatron axis such that flame high-temperature area contacts spray cone coming from vapor fuel nozzle at a distance from spray cone root. Ignition vapor fuel nozzle comprises fuel channel made in vapor supplying channel which feeds vapor fuel for spraying thereof. Collector located at nozzle inlet into vapor supplying channel is used for providing of necessary fuel spraying parameters in nozzle igniting jet. EFFECT: enhanced functional performance and increased reliability by providing of stable fuel ignition and stable fuel burning during plasmatron service life. 2 cl, 2 dwg
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