Humidification system

• US 5,653,919 A
• Filed: 06/23/1995
• Issued: 08/05/1997
• Est. Priority Date: 06/23/1995
• Status: Expired due to Term

• Current Assignee: Humidifirst Co.
• Original Assignee: Morgan & White, Ltd.
• Inventors: White, David B., White, Kenneth P.
• Primary Examiner(s): Nguyen, Khanh P.
• Application Number:
  US08/494,138
• Time in Patent Office: 774 Days
• Field of Search: 261/21, 261/30, 261/81, 261/DIG. 15, 261/DIG. 48, 261/23.1, 261/DIG. 34, 261/DIG. 4, 95/78, 55/260, 55/418, 55/DIG. 37
• US Class Current: 261/21
• CPC Class Codes: B01F 23/213 by spraying or atomising of the liquids
• CPC Class Codes: Y10S 261/15 Duct humidifiers
• CPC Class Codes: Y10S 261/48 Sonic vibrators

Abstract

A humidifier for adding liquid from a mist source to a gas flow improves the evaporation of the liquid by reducing the quantity of larger water droplets from the mist introduced to the gas flow by slowing a diverted portion of the gas flow, routing the gas flow through a partitioned chamber and deflecting the gas flow from direct impact on the mist while catching splattered liquid droplets within the humidifier.

Claims

1. A humidifier for providing a liquid mist in a gas flow, said humidifier comprising:

a housing having an inlet port for receiving the gas flow into humidifying chamber and an exhaust port for exhausting the gas flow from said humidifying chamber, wherein the cross-sectional area of the humidifying chamber is larger than the cross-sectional area of the inlet port, whereby the velocity of the gas flow is reduced upon entering the humidifying chamber;

an ultrasonic transducer positioned in a pool of liquid to interface the reduced velocity gas flow; and

at least one plate extending substantially across said humidifying chamber above said ultrasonic transducer, said plate dividing the chamber into at least two subchambers, said plate providing at least one aperture for permitting the passage of a substantially vertically extending fluid finger produced by the ultrasonic transducer, said inlet port permitting entry of the gas flow above and below said plate.

2. The humidifier according to claim 1, wherein the liquid is water.

3. A humidifier for providing a liquid mist in a gas flow, said humidifier comprising:

a housing having an inlet port for receiving the gas flow into humidifying chamber and an exhaust port for exhausting the gas flow from said humidifying chamber, wherein the cross-sectional area of the humidifying chamber is larger than the cross-sectional area of the inlet port, whereby the velocity of the gas flow is reduced upon entering the humidifying chamber;

a liquid mist generator for producing a liquid finger and positioned to interface the reduced velocity gas flow; and

an inlet shield positioned between the inlet port and the liquid mist generator, said inlet shield capturing droplets that may ricochet from the liquid finger towards the inlet port.

4. The humidifier according to claim 3, wherein the inlet shield is positioned to divert the gas flow away from a path impinging directly on the liquid finger.

5. The humidifier according to claim 3, wherein the liquid mist generator includes a plurality of ultrasonic transducers for variability.

6. The humidifier according to claim 3, wherein the inlet shield is V-shaped with the apex of the V directed towards the inlet port and the exhaust shield is rectangular shaped and adjacent to the exhaust port.

7. A humidifier system for providing a liquid mist in a gas flow in an air conditioning environment, said humidifier system comprising:

a housing having an inlet port for receiving the gas flow into humidifying chamber and an exhaust port for exhausting the gas flow from said humidifying chamber, wherein the cross-sectional area of the humidifying chamber is larger khan the cross-sectional area of the inlet port, whereby the velocity of the gas flow is reduced upon entering the humidifying chamber;

a liquid mist generator positioned within the humidifying chamber to interface the reduced velocity gas flow;

a scoop connected to the inlet port for diverting the gas flow at an angle into said inlet port;

an upper exhaust deflector adjacent the upper external side of the exhaust port for deflecting larger droplets back into the humidifying chamber and a lower exhaust deflector adjacent the lower external side of the exhaust port for deflecting larger droplets back into the humidifying chamber; and

an air conditioning duct surrounding said housing and having a larger cross-sectional area than the housing of the humidifier.

8. The humidifier according to claim 7 further comprising an air conditioning unit having a cooling coil wherein said inlet port is adjacent to said cooling coil.

9. The humidifier according to claim 7, further comprising a blower for directing forced gas flow past the liquid mist generator.

10. The humidifier according to claim 7, wherein said inlet port and said exhaust port are positioned in parallel to each other and in different planes.

11. The humidifier according to claim 7, wherein the liquid mist generator is selected from the group consisting of a nebulizer, atomizer, ultrasonic transducer and ultrasonic vibrator.

12. The humidifier system according to claim 7, wherein the scoop is shaped to divert the gas flow transversely into said inlet port.

13. The humidifier system according to claim 7, wherein he scoop is removable.

14. A humidifier system for providing a liquid mist in a gas flow in an air conditioning environment, said humidifier system comprising:

a plurality of housings, each having an inlet port for receiving the gas flow into humidifying chamber and an exhaust port for exhausting the gas flow from said humidifying chamber, wherein the cross-sectional area of the humidifying chamber is larger than the cross-sectional area of the inlet port, whereby the velocity of the gas flow is reduced upon entering the humidifying chamber;

a liquid mist generator in each humidifying chamber, each positioned to interface the reduced velocity gas flow;

a scoop connected to the inlet port of each of said housings for diverting the gas flow at an angle into said inlet port;

an upper exhaust deflector adjacent the upper external side of each exhaust port for deflecting larger droplets back into the humidifying chamber and a lower exhaust deflector adjacent the lower external side of each exhaust port for deflecting larger droplets back into-the humidifying chamber; and

an air conditioning duct surrounding said housings and having a larger cross-sectional area than the housings.