DEVICE AND METHOD FOR DEGASSING LIQUIDS

• US 20160279538A1
• Filed: 03/09/2016
• Published: 09/29/2016
• Est. Priority Date: 03/24/2015
• Status: Active Grant

• Current Assignee: Arisdyne Systems Incorporated
• Original Assignee: Arisdyne Systems Incorporated
• Inventors: Kozyuk, Oleg
• Granted Patent: US 10,159,915 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B01D 19/0042 modifying the liquid flow B01D19/0021 takes precedence
• CPC Class Codes: B01D 19/0094 by using a vortex, cavitation

Abstract

Devices for the removal of gases and/or volatilizable contaminants from liquids are described. In one example device, a liquid fluid containing dissolved gases and/or volatilizable contaminants are passed through at least one local constriction in a flow-through chamber at a sufficient pressure and flow rate to create cavitation bubbles in the liquid flow. The dissolved gases and/or volatilizable contaminants migrate into the cavitation bubbles. The velocity of the liquid flow is then reduced, which allows for the cavitation bubbles in the liquid flow to coalesce. The velocity of the liquid flow can then be reduced further, resulting in additional coalescing of the cavitation bubbles. The cavitation bubbles that contain the gases and/or volatilizable contaminants can then be separated from the liquid flow. The separation generally leaves a liquid flow product that may have a concentration of one or more gases or volatilizable contaminants lower than the starting liquid flow.

Claims

1. A device for degassing a liquid, the device comprising:

a first tubular section having an inlet end and an outlet end for passing fluid from the inlet end to the outlet end along a longitudinal axis;

a baffle extending into said first tubular section and forming an orifice between the baffle and an wall inner of the first tubular section, the orifice being configured to generate a first hydrodynamic cavitation field downstream therefrom;

a second tubular section positioned in axial alignment with said first tubular section as a first circumferential jacket surrounding said first tubular section such that a first annular chamber is formed between an outer wall of said first tubular section and an inner wall of said second tubular section;

said second tubular section having a closed end positioned to form a gap with the outlet end of said first tubular section, said second tubular section having one or more outlet apertures in a side wall of said second tubular section downstream from said closed end of said second tubular section;

a third tubular section positioned in axial alignment with said second tubular section as a second circumferential jacket surrounding said second tubular section such that a second annular chamber is formed between an outer wall of said second tubular section and an inner wall of said third tubular section;

said third tubular section having a closed end after the one or more outlet apertures of said second tubular section, said third tubular section having an outlet positioned downstream of said closed end of said third tubular section.

2. The device for degassing a liquid according to claim 1, wherein the one or more outlet apertures in the side wall of the second tubular section are radial to a general axis of the device.

3. The device for degassing a liquid according to claim 1, wherein the one or more outlet apertures in the side wall of the second tubular section are tangential to a general axis of the device.

4. The device for degassing a liquid according to claim 1, wherein the one or more outlet apertures have a circular, triangular, square, rectangular, pentagonal, polygonal, or other shape.

5. The device for degassing a liquid according to claim 1, wherein a cross-sectional area of the first annular chamber is at least 0.5% greater than a cross-sectional area of the first tubular section.

6. The device for degassing a liquid according to claim 1, wherein a cross-sectional area of the second annular chamber is at least 0.5% greater than the cross-sectional area of the first annular chamber.

7. A device for degassing a liquid, the device comprising:

a first tubular section having an inlet end and an outlet end;

a baffle extending into said first tubular section and forming an orifice between the baffle and an wall inner of the first tubular section;

a second tubular section positioned in axial alignment with said first tubular section such that a first annular chamber is formed between said first tubular section and said second tubular section;

said second tubular section having a closed end positioned to form a gap with the outlet end of said first tubular section, said second tubular section having one or more outlet apertures in a side wall of said second tubular section downstream from said closed end of said second tubular section;

a third tubular section positioned in axial alignment with said second tubular section such that a second annular chamber is formed between said second tubular section and said third tubular section;

said third tubular section having a closed end adjacent the one or more outlet apertures of said second tubular section, said third tubular section having an outlet positioned downstream of said closed end of said third tubular section.

8. The device for degassing a liquid according to claim 7, wherein the one or more outlet apertures in the side wall of the second tubular section are radial to a general axis of the device.

9. The device for degassing a liquid according to claim 7, wherein the one or more outlet apertures in the side wall of the second tubular section are tangential to a general axis of the device.

10. The device for degassing a liquid according to claim 7, wherein the one or more outlet apertures have a circular, triangular, square, rectangular, pentagonal, polygonal, or other shape.

11. The device for degassing a liquid according to claim 7, wherein a cross-sectional area of the first annular chamber is at least 0.5% greater than a cross- sectional area of the first tubular section.

12. The device for degassing a liquid according to claim 7, wherein a cross-sectional area of the second annular chamber is at least 0.5% greater than the cross-sectional area of the first annular chamber.