HEAT RECOVERY UNIT WITH FLUIDIZED BED Russian patent published in 2018 - IPC F24F5/00 

FIELD: ventilation.

SUBSTANCE: invention relates to the waste air heat recovery and for circulation water cooling devices, as well as for the air adiabatic cooling and humidifying in ventilation and air conditioning systems. Waste heat exchanger with fluidized bed comprises a housing, a separator, a water distributor, nozzles, a movable nozzle, a drip tray and a support grid, wherein in the housing a guide vane and a float valve are additionally located, and on the support grid a vibrator is mounted, each of the nozzles consists of a body with an external thread for connection to the liquid supply fitting, a conical transitional part and a cylindrical part with an internal threaded surface, and coaxially to the body in its lower part a nozzle formed by a cylindrical surface with interacting with the body external thread is fixed, closing by perpendicular to the body axis the end blind partition with a jet in its center, made axially symmetric to the nozzle and consisting of in-series connected cylindrical and conical orifices, wherein the conical hole larger diameter is located on the nozzle blind partition, and on the opposite to the liquid supply side, an additional row of jets is made with three pairs of mutually perpendicular vertical channels for the passage of fluid and horizontal channels, which intersect on the nozzle conical side surface and form each of the jets outlet openings, and made in the blind partition center jet has helical surfaces on the inner cylindrical and conical throttle openings, at that, on the nozzle channels inner surfaces, which intersect on its conical side surface and which are formed by three pairs of mutually perpendicular vertical and horizontal channels for the passage of fluid, helical surfaces are made, at that, in these channels the helical surfaces direction is made oppositely directed, wherein the formed by the housing and the nozzle chambers are filled with an elastic mesh element or chips, and to the body cylindrical part end surface a diffuser is attached, enclosing the nozzle with a blind partition and a jet conical surface, in the attached to the body cylindrical part end surface diffuser outlet section, a perforated partition is installed, to which the spokes are fixed by one end, which second end is fixed on the diffuser inner surface perpendicular to the diffuser inner surface, and on the spokes, in their central part, additional sprayers are installed, made in the form of helical drums, which are fixed on the spokes, at that, in the diffuser outlet section, a perforated conical shell is installed, which conical surface top is fixed on the perforated partition, and the nozzle cavity between the perforated conical shell is filled with an elastic mesh element or chips.

EFFECT: increased efficiency and reliability of the dust collection process by increasing the liquid spraying rate of injectors.

1 cl, 2 dwg