Heating, ventilation and air conditioning unit with automaticall

Details Heating, ventilation and air conditioning unit with automaticall Heating, ventilation and air conditioning unit with automaticall

1994-02-08

1995-02-14

Chiesa, Richard L.

Gas separation

With nonliquid cleaning means for separating media

Solid agent cleaning member movingly contacts apparatus

55228, 55233, 55242, 552572, 55269, 55419, B01D 4706

Patent

active

053891201

ABSTRACT:
An automatically controlled water spray air purification system is incorporated in a heating, ventilating and air conditioning unit serving a conditioned interior building space. The purification system is operative to receive a portion of the return air that would normally be flowed through the unit, mix the received return air with a quantity of outside ventilation air, purify the return air/outside air mixture using water sprayed from a sump portion of the purification system, and flow the purified air into the unit for mixture therein with the balance of the return air being flowed therethrough to the conditioned space. Damper structures on the unit and its associated air purification system permit selective variance of the percentage of the unit discharge air that has traversed the purification system. The water spray portion of the purification system is served by a pump forcing water from a sump structure through a filter, with the spray water draining back into the sump after cleansing air traversing the purification system. Upon a sensed demand therefor, an additive injector adds suitable chemical treatment material to the sump water, and a water pollutant monitor structure operates to backwash the filter upon sensing an undesirable pump back pressure increase or a buildup of particulate and gaseous pollutants in the sump water. A dehumidification structure incorporated in the purification system is automatically controlled to remove moisture from purified air exiting the purification system.

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