Tunnel pipe floor for heat exchanger, e.g. for chemical refinery, has steel plates joined to carrying floor part ends by laser or electron beam welding in irreversible, hermetically sealed manner

摘要

The tunnel pipe floor (1) consists of individual steel sheet plates (4) joined to the ends (3) of the carrying floor (12) elements (13) using laser welding or electron beam welding with a continuous weld seam or a continuously welded butt weld in a mechanically irreversible and hermetically sealed manner to form the tunnel pipe floor for the heat exchanger.