Heat exchangers with bundles of straight or undulating tubes, especially on systems of supporting tubes, and method of realising such systems

摘要

the development of heat exchangers, which is applicable to a steam generator, preferably of corrugated tubes arranged in layers or verticalaxial parallel and maintained at certain levels, supporting systems, each of which is formed in a concentric circular band alternating trapezoidal cell.welded to a support band and closed after establishment of tubesa closure strip which is welded to the support band supporting system in the radial direction of the grill. at least some of the support systems (20, 21.20, 21n) are independent of the support systems in the radial direction and formed adjacent groups of supporting systems, and radial arms (14, 14 '.14n) in support of independent supporting systems.