# US 5,699,983 A · Atomizing and mixing nozzle for humidification process

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- Number: US 5,699,983 A
- Document ID: US5699983A
- Status: Granted
- Kind: A
- Application number: 08/630,060
- Filed: 1996-04-12
- Granted: 1997-12-23
- Earliest claimed: 1993-08-23
- Inventors: Scott P. Ellsworth
- Web page: https://patentgrep.com/patent/US5699983A

## CPC

- F24F 6/12: by forming water dispersions in the air
- B64D 13/00: Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space
- B64D 13/08: the air being heated or cooled
- B64D 2013/0662: {with humidity control}
- Y02T 50/40: Weight reduction
- F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)
- B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

An apparatus is disclosed to carry out a humidification process which includes the steps of blowing hot air upwardly through a plurality of tubes (34) submerged in a body of water (8) but which terminate above the water level (16), aspirating water into hot jets of air, atomizing the water (8) by the action of the air (17) on the water, evaporatively combining the mixture (17a) of water and air, mechanically separating the excess water droplets out of the air stream (17a) in a baffle (60), and discharging the humidified air (17b) into a duct (12) leading to a compartment (22) to be conditioned.

## Claims

### Claim 1

A method of humidifying a compartment comprising the steps of:
providing an air inlet source comprising a continuous jet of air,
entraining from a surface of a body of water water droplets into the air,
evaporating water from the surface of entrained water droplets into the air to form humidified air,
separating excess droplets from the humidified air and
distributing the humidified air into the compartment
wherein the entraining step further comprises the steps of:
extending the surface of the body of water into the interior of the jet and
entraining water droplets into the air from the extended surface.

### Claim 2 (depends on 1)

The method as set forth in claim 1 wherein the extending step further comprises the step of:
aspirating water into the jet by a venturi effect of the jet.

### Claim 3

A process of humidifying an air source by evaporating water droplets into the air mass and discharging humidified air into a passage comprising the steps of:
providing a reservoir of water having an upper surface;
providing a continuous stream of air having an interior;
entraining by the stream from another surface of the reservoir droplets of water;
atomizing of the droplets by the stream to reduce the mean diameter and increase the number of droplets;
evaporating water as vapor into the air from the surfaces of the droplets to form humid air; and
mechanically separating entrained water droplets from the humid air,
wherein:
the providing step further comprises the step of passing the stream of air through a tube which ends above the upper surface of the reservoir of water and
the entraining step further comprises the step of conveying water directly from the reservoir of water into the interior of the stream of air through such means so that the other surface of the reservoir from which droplets of water are entrained lies wholly within the interior of the stream of air.

### Claim 4

In a process of humidifying a compartment including vaporizing water from a body of water into an air stream and discharging the humidified air to the compartment comprising the steps of:
blowing a dry air source, comprising a continuous jet, past a body of water;
removing by the jet, from an interface between the water and the jet, droplets of water into the jet by entrainment;
atomizing of the droplets into smaller droplets by the jet;
evaporating water as water vapor into the air from the surfaces of the smaller droplets; and
discharging the humidified air into the compartment
wherein:
the blowing step further comprises the step of passing the jet of air through a venturi which exits above the body of water and
the removing step further comprises the step of admitting water into the venturi from the body of water.

### Claim 5 (depends on 4)

In a process as set forth in claim 4 wherein the admitting step further comprises the step of:
conveying water to the venturi from the body of water through a passageway.

### Claim 6 (depends on 4)

In a process as set forth in claim 4 wherein the admitting step further comprises the step of:
admitting water to the venturi from the body of water through at least one hole in the venturi which hole is located within the body of water.