Ozone generator with heat pipe cooling

Patent metadata

Field	Value
Publication number	US-11858810-B2
Application number	US-201916965440-A
Country	US
Kind code	B2
Filing date	Jan 25, 2019
Priority date	Jan 29, 2018
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

A device for generating ozone from oxygen-containing gas by silent electric discharge, the device including an electrode arrangement having at least one high-voltage electrode and at least one annular ground electrode. An annular dielectric is arranged between the at least one high-voltage electrode and the at least one ground electrode. The at least one high-voltage electrode is surrounded by at least one annular heat pipe.

First claim

The invention claimed is:

1. A device for generating ozone from oxygen-containing gas, the device comprising:
an electrode arrangement comprising:
at least one high-voltage electrode;
at least one annular ground electrode;
an annular dielectric arranged between the at least one high-voltage electrode and the at least one ground electrode, each of the at least one high-voltage electrode, the at least one annular ground electrode, and the annular dielectric comprising an electrode arrangement component, and
one or more annular heat pipes defining, surrounding, or defining and surrounding the at least one high-voltage electrode, and surrounded by at least one other electrode arrangement component, each of the one or more annular heat pipes comprising an annular space in cross section defined by radially spaced walls, the annular space containing a condensable heat transfer medium, the heat pipe comprising an evaporator section and a condensation zone, the heat pipe configured for vaporization of the heat transfer medium in the evaporator section, condensation of vaporized heat transfer medium in the condensation zone, and return of condensed heat transfer medium to the evaporator section.

2. The device of claim 1 , wherein one or more of the at least one high-voltage electrode, the at least one ground electrode, and the annular dielectric comprise the one or more annular heat pipes.

3. The device of claim 2 , wherein the at least one high-voltage electrode includes a central high-voltage electrode, the high-voltage electrode comprising a metal heat pipe having a circular cross-section and defining an enclosed cavity.

4. The device of claim 3 , wherein the metal heat pipe comprises a closed heat exchange system.

5. The device of claim 3 , wherein each of the metal heat pipe and the one or more annular heat pipes comprises a closed heat exchange system.

6. The device of claim 2 , wherein the at least one high-voltage electrode includes a central high-voltage electrode comprising a filler material arranged on a heat pipe, the heat pipe having a circular cross-section and defining an enclosed cavity.

7. The device of claim 6 , wherein the heat pipe having the cylindrical cross section comprises a closed heat exchange system.

8. The device of claim 6 , wherein at least one of the metal heat pipe and the one or more annular heat pipes comprises a closed heat exchange system.

9. The device of claim 6 , wherein the heat pipe having the circular cross-section comprises an insulator.

10. The device of claim 6 , wherein the filler material comprises a mesh or fabric comprising metal wire.

11. The device of claim 10 , wherein the metal wire comprises stainless steel.

12. The device of claim 1 , wherein at least one of the one or more annular heat pipes forms an electrode.

13. The device of claim 1 , comprising:
at least a first discharge gap defined between the at least one high-voltage electrode and the annular dielectric;
at least a second discharge gap defined between the annular dielectric and the at least one ground electrode; and
wherein the at least one first discharge gap and the at least one second discharge gap are configured to be traversed by the oxygen-containing gas.

14. The device of claim 1 , comprising four discharge gaps configured to be traversed by the oxygen-containing gas, wherein the at least one high-voltage electrode defines a heat pipe defining an enclosed cavity and the at least one annular ground electrode defines an annular heat pipe of the one or more annular heat pipes.

15. The device of claim 1 , wherein at least one of the one or more annular heat pipes is a component of a heat exchange system having an air-cooled finned condenser.

16. The device of claim 1 , further comprising a heat exchanger arranged in the condensation zone, the heat exchanger connected to the at least one annular heat pipe.

17. The device of claim 1 , wherein at least one of the one or more annular heat pipes comprises a closed heat exchange system.

18. The device of claim 17 , wherein each of the one or more annular heat pipes comprises a closed heat exchange system.

19. The device of claim 1 , wherein the electrode arrangement is configured to produce silent electric discharges suitable to generate ozone from the oxygen-containing gas.

Assignees

• Xylem Europe Gmbh

Inventors

• Fietzek Reiner
• Brueggemann Nicole
• Fiekens Ralf
• Salvermoser Manfred

Classifications

• C01B13/115 Primary

  characterised by the electrical circuits producing the electrical discharge · CPC title

• H01T23/00

  Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere · CPC title

• H05K7/20336

  Heat pipes, e.g. wicks or capillary pumps · CPC title

• C01B2201/14

  Concentric/tubular dischargers · CPC title

• C01B2201/22

  Constructional details of the electrodes · CPC title