CORROSION-RESISTANT BIMETALLIC PIPE AND ITS USE IN EQUIPMENT WITH TUBE BANK Russian patent published in 2012 - IPC F16L9/00 

FIELD: machine building.

SUBSTANCE: bimetallic pipe consisting of one tube element made from the first metal resistant to corrosion and/or erosion impact of process fluid media with which it contacts, to external surface of which on one end or in the area near the end there applied is coating from the second metal different from the first one and more suitable for formation of tight weld between itself and supporting structure. Heat exchanger with tube bank, which is intended for performance of heat exchange operations under higher pressure and at high temperatures, and in conditions involving the action of highly erosion and/or corrosion aggressive process fluid media, and which includes the tube having the above characteristics.

EFFECT: improved performance characteristics of chemical equipment with tube bank owing to high corrosion-erosion resistance of tubes.

24 cl, 3 dwg