DEVICE FOR WATER-JET TREATMENT OF FURNACE WALLS IN POWER GENERATING BOILERS Russian patent published in 2005 - IPC

FIELD: industry power engineering.

SUBSTANCE: invention is designed for cleaning heating surfaces of boiler units from ash and slag deposits. Proposed device contains nozzle head in inclined fastening holder with carrier and electric drive on frame to provide reciprocation and rocking displacements of head on conical surface mainly in horizontal directions, and mechanism for turning nozzle head in vertical plane. It employs also coaxial truncated guide cylindrical bows whose end faces are fastened through support plate to boiler water-wall tubes. "Ω"-shaped slide belts are installed on outer and inner cylindrical surfaces of bows, being rigidly connected both from sides of bases and to each other. Outer "Ω"-shaped belt is connected by rods with frame of hydraulic monitor. Axes of cylindrical surfaces of truncated bows are arranged in one plane with axes of boiler water-wall tubes in smallest section of arch. Said plane intersects vertex of cone whose generatrix is axial line of nozzle head.

EFFECT: improved operation reliability.

4 dwg