摘要 |
FIELD: ventilation. ^ SUBSTANCE: invention relates to ventilation and air conditioning with regenerative heat exchangers. A waste heat recovery plant comprising a tray, a anti-frosting system, a two-stage contact heat exchanger with a packed bed, a cooling system with a heat exchanger, wherein the packed bed has the form of hollow balls, on the spherical surface of which there is a helical groove or the packed bed has the form of a helical line that is formed on the spherical surface and has a profile, which, as viewed in perpendicular cross-section, is shaped as a circle, a polygon, a "Berl saddle" or an "Itallox" saddle packing. ^ EFFECT: improving the efficiency of recovering the waste heat of water from processing equipment. ^ 2 cl, 4 dwg |