EQUIPMENT HEAT UTILIZATION PLANT Russian patent published in 2018 - IPC F24F12/00 F24F5/00 

FIELD: ventilation.

SUBSTANCE: invention relates to ventilation and air conditioning with regenerative heat recovery units. In a heat recovery device for equipment containing a casing, a tray, a freezing protection system, a two-stage contact heat exchanger with a nozzle, a cooling system with a heat exchanger, the nozzle is made of a compact thin-film corrugated film with the thickness of 0.4…0.8 mm, herewith molded sheets of the nozzle are connected by glue, and the nozzle surface is alternating channels of a triangular shape that are inclined to the axis of the coolant draining according to the counterflow scheme: one sheet at the angle of +30°, the other one glued on it – at -30°, and along the length the channels are made with U-shaped corrugation, nozzle of the irrigation system comprises a body, a fitting and a coaxially arranged swirling insert with an external helical thread and an expanding conical hole inside, wherein the fitting has a cylindrical inlet opening connected to a diffuser, which is made axially symmetric in the body, and in the lower part of the body there is a nozzle arranged axially symmetric to the body and having a two-stage and coaxial to the swirling insert diffuser, the first stage of the diffuser is a continuation of the expanding conical hole made inside the swirling insert, which is made from a wear-resistant material, and the second stage of the diffuser is a continuation of its first stage, while on its inner conical surface a screw-like thread is made, herewith the conical surface with the screw-like thread of the second stage of the diffuser is made perforated, and in the lower part of the body, coaxial to it, a cylindrical shell is fixed, on which a flow divider is arranged in the form of at least two rods located obliquely to the axis of the nozzle and connected to each other in the lower part, to which a vertically disposed rod is attached, onto which there is a vortex made in the form of a cone with helical blades enclosing the rod with a clearance and resting in the lower part on a thrust located horizontally and perpendicular to the rod.

EFFECT: increased efficiency of heat recovery of the water from process equipment.

1 cl, 2 dwg