Vertical tube heat exchange panel for recovery boilers, such as black liquor boilers or town refuse incinerators, and manufacturing processes

摘要

heat exchanger panel with vertical tubes (1, 2) forming loops between an inlet (1A) and an outlet (1B) by which they are suspended from a rigid structure (3,4) and intended to be in contact by their outer surface with soot-laden gases, and its method of manufacture. Its tubes are separated by a step of slightly greater than their diameter, those of the central portion (23. 24, 30 are joined by fins (25) and the end tubes (21, 22) connected directly to the structure suspension are integral with each other and with the adjacent tube (23) closest by low-height members (14, 15) welded on either side on the neighboring tubes (21, 22, 23) at a lower level to that of the upper loops (9, 10, 11) of the panel and are joined together and with the adjacent tube below the fastening members by fins (26, 27)