| 摘要 |
FIELD: high-temperature heating devices. ^ SUBSTANCE: device is made of assembled lamellas made of rods of refractory metals and alloys, forming a heating chamber with opening in the bottom, and ends of lamellas, connected to current guides to be cooled down. Lamellas are made U-shaped, have same length and curved shape, current guides are made in form of two closed rings, ends of each lamella are held along perimeter circle of current guides along generatrix of cylindrical surface with forming of vertical and horizontal portions of heating chamber, and an opening in the bottom of chamber is formed by centering ring, around perimeter of which vertexes of closed portions of lamellas, converging to center, positioned in horizontal plane and forming the bottom of chamber, are held, while distance between lamellas equals distance between branches of lamellas. Construction of high-temperature electric heater is the reason for homogeneousness of heating field along vertical line and horizontal line and exclusion of negative effect of sign-alternating axial gradients of temperatures and magnetic field; decreases loss of costly materials due to growing of profiled mono-crystals and increases their quality, allows to replace broken down lamellas and increase durability of heating device as a whole. ^ EFFECT: higher efficiency, lower costs, higher durability, higher quality. ^ 5 cl, 5 dwg |
