FIELD: power industry.
SUBSTANCE: circuit for cooling high-beat areas of structures consists of internal profiled shell, on external surface of which there are made ribs of cooling circuit, and of external profiled shell installed on internal one and bound with it by tops of ribs of cooling circuit. Hollow bridges interconnecting tops of ribs are made between ribs of the cooling circuit. Also bridges interconnect tops of all ribs forming single circular surface to increase stability of shells. For improvement of conditions of heat release lengthwise ribs are made on internal fire surface of the internal shell.
EFFECT: increased stability and durability of internal and external shells.
3 cl, 2 dwg
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