GAS DUCT Russian patent published in 1998 - IPC

FIELD: mechanical engineering; modification of gas ducts working at high temperatures, about 1000 C to 2000 C and pressures varying from 2.0 to 10.0 MPa. SUBSTANCE: gas duct has metal casing lined with heat protective coat and erosion-resistant plastic material. Erosion-resistant plastic material has through holes. Axes of through holes may be located perpendicularly relative to surface of erosion-resistant plastic material. Through holes may be evenly distributed over surface. EFFECT: enhanced operational reliability especially at high temperatures. 3 cl, 1 dwg