METHOD FOR TORCH FLUIDIC-AIR HEATING OF ARTICLES AND APPARATUS FOR PERFORMING THE SAME Russian patent published in 2005 - IPC

FIELD: heat engineering.

SUBSTANCE: apparatus includes cylindrical housing with annular end wall, cylindrical working chamber and intermediate tube, both mounted concentrically relative to housing for forming cavities and provided with openings distributed on their surface. Apparatus also includes branch pipes for supplying gas, air and for removing smoke. Cylindrical shield is arranged coaxially at outlet of working chamber; outlet end of said shield is secured to annular end wall of housing. On inlet end of said cylindrical shield perforated annular disc is mounted in working chamber. Intermediate disc is arranged in housing on cylindrical shield between annular wall of housing and perforated disc for forming mixing chamber between it and perforated disc. In annular cavity coaxially relative to cylindrical shield annular partition is mounted for forming gas chamber between it and wall of cylindrical shield and for forming air chamber between it and wall of housing. Outlet end of branch pipe for supplying gas is communicated with gas chamber. Branch pipe for air supply is mounted on housing at inlet side of working chamber and its outlet end is communicated with cavity restricted by wall of chamber and intermediate tube. Intermediate disc has openings for communication of cavity between housing and intermediate tube with air chamber and for communication of air chamber and gas chamber with mixing chamber. Apparatus may have at least one additional housing, additional cylindrical working chamber and additional intermediate tube. Article is heated in working chamber due to action upon surface of article by means of torches created at igniting gas-air mixture fed along article surface. Torches are turned normally relative to article surface.

EFFECT: uniform high-speed heating of article.

3 cl, 2 dwg