Evaporative cooler
OwnerRichard J. Goettel, Franklyn F. Kelleyinventors
Life of this patent
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Abstract
An apparatus for evaporatively cooling air including an air moving mechanism for supplying air under pressure to an evaporator duct wherein water is sprayed into the airstream countercurrent to the airflow direction. The evaporator duct is especially configured to inhibit moisture migration toward the air moving device and the sprayed water is precooled to increase operating efficiency. A second stage of evaporative cooling may be included by tandemly coupling a second stage evaporator duct to the outlet of the first stage evaporator duct.
Claims17
An apparatus for evaporatively cooling air comprising:
- (a) an evaporator duct;
- (b) means coupled to said evaporator duct for supplying air under pressure thereto;
- (c) a spray nozzle in said evaporator duct for spraying finely divided water into the incoming air stream countercurrent to the flow direction thereof;
- (d) extractor means in said evaporator duct downstream of said spray nozzle for extracting free moisture from the air movable through said evaporator duct;
- (e) a water collection sump in said evaporator duct for receiving the free moisture from the air movable through said evaporator duct;
- (f) overflow means in said sump for disposing of water in excess of a predetermined amount;
- and
- (g) a water supply conduit for delivering water from a remote source of fresh water under pressure to said spray nozzle, said water supply conduit passing through said sump below the surface of the water receivable therein and in heat exchange therewith for precooling of the water deliverably by said water supply conduit to said spray nozzle.
An apparatus for evaporatively cooling air comprising:
- (a) an evaporator duct;
- (b) means coupled to said evaporator duct for supplying air under pressure thereto;
- (c) a spray nozzle in said evaporator duct for supplying finely divided water into the incoming air stream countercurrent to the flow direction thereof;
- (d) a water supply conduit for delivering water from a remote source of water under pressure to said spray nozzle;
- (e) extractor means in said evaporator duct downstream of said spray nozzle for extracting free moisture from the air moving therethrough;
- (f) said evaporator duct including,
- I. an air inlet duct section of equal cross sectional area along its length an disposed to define an angularly downwardly sloping air inlet passage, and
- II. a main duct section integral with said air inlet duct section for receiving the air delivered thereby, said main duct section having a substantially horizontal air movement path therethrough;
- and
- (g) said spray nozzle disposed in said evaporator duct to spray the finely divided water angularly and upwardly into the air inlet passage defined by said air inlet duct section.
Dependencies are inferred from the claim text.