PLENUM PLANT OF NATURAL VENTILATION SYSTEM IN LIVESTOCK BUILDING Russian patent published in 2009 - IPC F24F13/10 

FIELD: heating.

SUBSTANCE: plenum plant is intended for natural ventilation and may be used in livestock buildings. Plenum plant of natural ventilation system includes opening in wall and air intake nozzle with control valve being installed at the inlet. Inlet opening cross section plane in intake nozzle is made at an acute angle to the top wall and control valve is placed between the stop rigidly fixed to the top wall of air inlet nozzle and inlet opening. It is hinge connected with the outer edge of the top wall of the nozzle. The tension plank is rigidly fixed to the above top wall. The tension plank is mated with calibrated spring having lever coupled with control valve.

EFFECT: plant capable of controlling volume of outer air supply depending of wind velocity.

3 dwg