INJECTION BURNER Russian patent published in 2004 - IPC

FIELD: burners, particularly burners for metal heating before welding thereof, drying? ladle lining heating and burners for roofing building. SUBSTANCE: burner comprises mixing chamber having orifices formed on side wall thereof, tip and gas nozzle. The second row of orifices is made in mixing chamber side at a distance from tip bottom. Distance between centers of the second row orifices and tip bottom is not more than 3D, where D is inner diameter of mixing chamber. Distance between centers of the second row orifices and centers of the first row orifices L is estimated as 5D<L<10D. The summary square of orifices in the first and the second rows is not less than mixing chamber channel area. Relation between orifice diameters of the first and the second rows is 0.5 - 1.5. Bushing is arranged outside mixing chamber so that bushing may move along mixing chamber for closing of orifices. Bushing length h is selected from the following condition: H<h<L, where H is wall length along mixing chamber axis between two rows of orifices. EFFECT: enhanced jet resistance to disruption, increased calorific intensity due to provision of diffuse burning thereof. 2 cl, 1 dwg