| 摘要 |
FIELD: heating systems. ^ SUBSTANCE: invention refers to power engineering. Burner includes body in which there coaxially located is combustion chamber with a nozzle and pre-chamber with a flat edge located inside it, which is equipped with ignition source located in it, which also has a flat edge, supply systems of fuel and oxidiser with atomisers, as well as system for convection cooling of combustion chamber, the wall of which has channels for cooling agent passage; besides, combustion chamber and pre-chamber are connected by means of central hole; at that, atomiser of fuel supply system is located in the latter. Combustion chamber wall is massive, atomiser of oxidiser supply system is located in pre-chamber, gap between adjacent edges of pre-chamber and ignition source is 1.0 to 3.0 mm, and ratio of inner diametre of combustion chamber to diametre of central hole is 3.0 to 8.0. Ignition source is made in the form of electric discharge plug. Combination of atomiser of oxidiser in pre-chamber and atomiser of fuel in central hole is a gas-liquid atomiser. Holes of fuel supply atomiser are located in central hole either radially or tangentially. Holes of oxidiser supply atomiser are located in pre-chamber either radially, or tangentially. Oxidiser supply atomiser is located in pre-chamber at attachment point of ignition source. Inlets of cooling agent channels to combustion chamber wall are located in the area of nozzle critical section. Outlets of cooling agent channels from combustion chamber wall are located at attachment point of ignition source. Body is made from material with high heat conductivity, e.g. from chromium copper BrX08. ^ EFFECT: invention provides reliable ignition of burner, reliable cooling of combustion chamber wall, allows obtaining flame of combustion products, at burner outlet, with high temperature and high pressure. ^ 17 cl, 1 dwg |
