US1641899A - System of ventilating and humidifying - Google Patents

Description

Sept. 6, 1927.

E. NE SDAHL SYSTEM OF VENTILATING AND HUMIDIFYING Filed Aug. 20. 1924 3 Sheets-Sheet 1 WITNESSES.

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Sept. '6, 1927. E. NESDAHL SYSTEM OF VENTILATINQ AND HUMIDIFYING Filed A112. 20. 1924 3 Sheets-Sheet 2 IN VENTOR WITNESSES. r

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Patented Sept. 6, 1927.

UNITED STATES EILER'I. NESDAHL, OF CAMDEN, NEW JERSEY.

I SYSTEM OF VENTILATING AND HUMIDIFYING.

Application filed August 20, 1924. Serial No. 733,087.

ceiling having nozzles discharging down-.

ward.

My invention applies to the circulation of either dry air for dry rooms or moist air for humidification. The air delivered at the floor line and leaving the air conduit at fair velocity will distribute across the room and rise to ceiling of room because of the natural difierence in density of air at floor and ceiling.

More particularly, my invention is intended for use in connection with dry rooms, where the natural tendency of the warm or hot air entering is to follow the ceiling. My

invention will deliver the air to and along the floor line, allowing the air to rise to the ceiling from the difference in density of air at these points.

For the purpose of illustrating my invention I have shown in the accompanying drawings forms thereof which are at present preferred by me since they will give in practice satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described. I 4

Referring to the drawings Figure 1 represents a lan view of the air distributing and circulating system embodying my invention.

Figure 2 represents an elevation of the same. I

' Figure 3 is a cross sectional elevation of the same on line :v-w.

Figure t is a plan View of a modified form of my invention. Figure 5 is an elevation of the same.

Figure 6 is a cross sectional elevation of the same on line H.

Figure 7 is a plan view of still another modification of my invention.

Figure 8 is an elevational view of the same.

Figure 9 is a cross sectional elevation of the same on line wa;.

Referring to the drawings, in which like reference characters indicate like parts, 2 designates a fresh air conduit with damper connecting to a point outside the room. 3 is a conduit for either bringing the air from room back to apparatus or letting it escape to the atmosphere outside the room or doing both in part. 4 is a conduit connection with damper for allowing a portion or all of air to escape from room to atmosphere outside of room. 5 is a heater or combination heater and humidifier for bringing the air 'to the proper temperature and relative humidity.

6 is a blower for drawing the required air through conduits 2 and 3 and delivering same through conduits 7 and 8. 7 is a conduit near ceiling of room for creating an induced downward circulation of air within room, resulting from the impact of high velocity air through nozzles 9 upon the air of the room. 8 is a conduit for delivering air near floor of room and discharging the air at floor line, creating a flow of air across the room, resulting from the impact of high velocity air from nozzles 10. The numeral 11 designates the material or goods to be dried, or subjected to the ventilation, shown arranged in upright stacks spaced from each other slightly; the circulation of air being indicated by the vertical arrows between the stacks of goods, and the horizontal arrows above and below the same.

;I have shown heater, or combinatio humidifier and heater also the blower located above ceiling of the room to which the air is to be supplied. This equipment may be located either in the room or adjacent to the room in which air is-to be suppliedwithout departing from the spiirt of the mvention.

I have shown my invention in the forms which I have adopted for commercial practice and which. I have found excellently adapted to the object of creating a ra 1d circulation of air' within a crowded or pac ed room, but I do not restrict myself to the details of construction as these may be modified in various ways without departing from the spirit of the invention.

It will now. be apparent that I have devised a novel and useful system of ventilating and 'liumidifying which embodies the features of advantage enumerated as desirable in the statement of the, invention and the above description, and whileI have m the present instance, shown and descrl preferred embodiments thereof wh ch w1ll give in practice satisfactory and reliable results, it is to be understood that such embodiments aresusceptible of modification in various particulars without departing from the spirit or scope of the inventlon or sacrificing any of its advantages.

i I claim:-

1. In a construction of the character stated, a combination of a room to be ventilated, and an upper air inlet adjacent to the ceiling and disposed to project the air downwardly, a lower air inlet near the floor of said room and disposed to project the air across the room near the floor line, an air outlet near the ceiling of the room, and means to force a supply 0t air through said upper and lower air inlets simultaneously.

2. In a construction of the character stated, the combination of a room be ventilated, a plurality of upper air mlets adjacent to the ceilin and one ofthe walls of said room adapt to project air downwardly, a plurality of lower air inlets adjacent to the floor of the room and said wall, disposed to project air across the room, an air outlet near the ceiling of the room and means to force air through said u per and lower air inlets simultaneously an at suitable velocity.

3. In ventilating and drying apparatus of the character stated, the combination of a room to be ventilated, an air suppl conduit, means for discharging air there mm at a high velocity from the ceiling downwardly and inproximity 'to a wall of the .room, means for dischargin air from said conduit laterally across sai room near the floor line thereof, a vent opening near the top of the room forthe exit of air, a recirculating conduit intermediate said vent opening and said air supply conduit, and means for regudownwardly throu lating the air supply and the amount of air recirculat 4. In a device of'the character stated, the combination of means for delivering heated air horizontally across the floor line of a room, upper downwardly discharging nozzles positioned near the ceiling of said room, and means for forcing g said upper nozzles, substantially in vertlcal alignment with said lower air delivery means.

5. In a ventilatin system of the character stated, the combinatlon of a room to be ventilated, an air an ply conduit, a plurality of lower air nozz es communicating therewith and disposed to project streams of air across the room at the floor line, a pluralit of upper air nozzles communicating wit said air supply conduit, in substantially vertical alignment with said lower air nozzles and disposed to project air downwardl in said room, a vent opening in the top 0 the room, a blower in said air supply conduit, a recirculatin conduit intermediate said vent openlng an said air supply conduit, an outlet opening in said recirculating conduit, a valve cooperating with said outlet to regulate the pro rtions of air recirculated and the air disc arged through said outlet, an

air intake in said air supply conduit and a valve for regulating the fresh air through said intake.

' 6. In a ventilating system of the character stated, the combination of a room to be ven tilated, an air supply conduit, a lower air nozzle communicating therewith and disposed'to project a stream of air across the room at the floor line, an upper air nozzle communicating with said air supply conduit in substantiall vertical alignment with sai' lower air nozz e and disposed to project air downwardly in said room a vent opening in the top of said room, a supply conduit, and a recirculatin conduit intermediate said vent opening an said air supply conduit.

In testimony of which invention I have hereunto set my hand.

EILERT NESDAHL.

air at a high velocity.

blower in said air

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