Battery pack back-up for diesel fuel heated dessicant reactivation

Abstract

In a diesel fuel heated dessicant reactivation apparatus, a battery powered source of electrical energy is employed to maintain its heat exchanger operative when monitored temperature levels increase to that threshold at which the “fire-eye” and/or the primary relay of the ignition system would be otherwise damaged.

1 . In apparatus for dehumidifying moisturized air present within a building from a point external thereto having an enclosure housing a heat exchanger, a dessicant, a first blower drawing ambient air from outside said enclosure over said heat exchanger through said dessicant in a first direction, a second blower drawing said moisturized air through said dessicant in a second direction, and means for firing said heat exchanger with diesel fuel, the improvement comprising: 
 a thermal sensing device monitoring temperature levels within said housing; and    a battery power source of electrical energy coupled between said thermal sensing device and said heat exchanger;    wherein said thermal sensing device controls said power source to supply electrical energy to operate said heat exchanger when the monitored temperature levels increase to a predetermined threshold.    
   
   
       2 . The improvement of  claim 1  wherein said battery power source of electrical energy includes an electrical invertor.  
   
   
       3 . The improvement of  claim 1  in apparatus employing a heat exchanger operable with a “fire-eye”, wherein said temperature sensing device controls said battery power source to supply electrical energy when monitored temperature levels increase to a temperature at which said fire-eye is damaged by the temperature then within said heat exchanger.