Spray device for cooling cattle in sheds and method of using the same

Method for controlling the temperature of a target animal at a given location about 16 meters distant comprising the steps of:

• a. providing an air fan assembly comprised of a housing including an air inlet and a planar member defining an air outlet opening and an air fan juxtaposed in said air outlet opening in said planar member with the planar member peripherally surrounding said fan on all sides and extending peripherally outwardly thereof, said air fan having blades rotary mounted on a hub that has a longitudinal axis about which said blades rotate and a motor driving said fan;
• b. mounting said air fan assembly on a support for pivoting about an axis normal to the longitudinal axis of said hub;
• c. operating said air fan assembly to generate, downstream from the air fan, an air stream having a maximum velocity of 2 m/sec;
• d. providing a cylindrical nozzle chamber fixed to the air outlet side of the fan longitudinally aligned with the hub and of substantially the same diameter and having a front portion facing forward in the direction the air stream flow, said chamber defining at least one forward facing opening;
• e. introducing liquid via a liquid inlet to the cylindrical nozzle chamber with an orientation that produces centrifugal motion for liquid within the cylindrical nozzle chamber, said liquid being introduced under a pressure of from about 3 to 6 atm and at a flow rate of from about 5 l/hr to about 50 l/hr;
• f. press fitting at least one replaceable flexible hollow elongated nozzle into said forward facing opening;
• and
• g. discharging the centrifugally moving liquid in said cylindrical nozzle chamber through said at least one flexible hollow elongated nozzle to form a conic spray centrally entrained in said air stream for controlling the temperature of a target animal at a given location about 16 meters distant from said at least one flexible hollow elongated nozzle.