| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: method to manufacture lengthy heat exchange surfaces comprises fixation of the first lengthy structure on the entire external surface, with a cylindrical shape from metal or alloy, at least one second lengthy structure made of metal or alloy, different from metal, or alloy of the first structure, and covering the first structure without a gap. Lengthy sides of the second structure are connected by means of welding with at least one similar side, eliminating other methods of connection. At least one heat exchange element is fixed onto the external surface of the second structure. ^ EFFECT: increased workability of production and assembly works. ^ 20 cl, 1 dwg |
