Electrical discharge cell for generating ozone

Patent metadata

Field	Value
Publication number	US-11247900-B2
Application number	US-201916659512-A
Country	US
Kind code	B2
Filing date	Oct 21, 2019
Priority date	Oct 21, 2019
Publication date	Feb 15, 2022
Grant date	Feb 15, 2022

Abstract

An electrical discharge ozone generation cell has first and second electrode base plates which are separated by a nonconductive flat spacer plate. Within a central opening in the spacer plate is fitted an electrode plate in close contact with the first electrode base plate. A dielectric plate in close contact with the second electrode base plate and with the spacer plate helps define a gas discharge chamber with the interior edges of the spacer plate and the electrode plate. Gaskets on the two sides of the spacer plate around the central opening displaced away from the interior edges of the spacer plate ensure a gas seal for the electrical discharge chamber.

First claim

The invention claimed is:

1. An electrical discharge ozone generation cell comprising:
a nonconductive spacer plate separating first and second electrode base plates, the spacer plate having two sides and interior edges defining a central opening in the spacer plate;
an electrode plate in intimate contact with the first electrode base plate, the electrode plate fitted within the central opening of the spacer plate;
a dielectric plate in intimate contact with the second electrode base plate and with the spacer plate, a gas discharge chamber defined by the dielectric plate, the interior edges of the spacer plate and the electrode plate; and
gaskets on the two sides of the spacer plate around the central opening displaced away from the interior edges of the spacer plate whereby the gaskets ensure a gas seal for the gas discharge chamber at a reduced exposure to ozone in the gas discharge chamber.

2. The electrical discharge ozone generation cell of claim 1 wherein the gaskets comprise O-ring gaskets.

3. The electrical discharge ozone generation cell of claim 2 further comprising:
grooves in both sides of the spacer plate around the central opening displaced away from the interior edges of the spacer plate to receive the O-ring gaskets.

4. The electrical discharge ozone generation cell of claim 1 wherein the gaskets comprises elastic material.

5. The electrical discharge ozone generation cell of claim 4 wherein the gaskets comprises FKM (fluoroelastomer) material.

6. The electrical discharge ozone generation cell of claim 1 wherein the spacer plate comprises polycarbonate.

7. The electrical discharge ozone generation cell of claim 1 wherein the electrode plate comprises anodized aluminum infused with PTFE (Polytetrafluoroethylene).

8. The electrical discharge ozone generation cell of claim 1 wherein the electrode plate comprises anodized aluminum.

9. The electrical discharge ozone generation cell of claim 1 wherein the electrode plate comprises high chrome steel.

10. The electrical discharge ozone generation cell of claim 1 wherein the electrode plate comprises anodized alumina bonded to a conductive carrier.

11. The electrical discharge ozone generation cell of claim 1 wherein the first and second electrode base plates comprise aluminum.

12. The electrical discharge ozone generation cell of claim 1 wherein the spacer plate has a first predetermined thickness, the electrode plate has a second predetermined thickness, the dielectric plate has a third predetermined thickness and a difference between the first predetermined thickness and a sum of the second and third predetermined thicknesses creates the gas discharge chamber with the interior edges of the spacer plate.

13. An electrical discharge ozone generation cell comprising:
a nonconductive spacer plate separating first and second electrode base plates, the spacer plate having two sides and interior edges defining a central opening in the spacer plate;
an electrode plate in intimate contact with the first electrode base plate, the electrode plate fitted within the central opening of the spacer plate;
a dielectric plate in intimate contact with the second electrode base plate and with the spacer plate, a gas discharge chamber defined by the dielectric plate, the interior edges of the spacer plate and the electrode plate; and
gaskets on the two sides of the spacer plate around the central opening to ensure a gas seal for the gas discharge chamber;
wherein the spacer plate has a first predetermined thickness, the electrode plate has a second predetermined thickness, the dielectric plate has a third predetermined thickness, and a difference between the first predetermined thickness and a sum of the second and third predetermined thicknesses creates the gas discharge chamber with the interior edges of the spacer plate.

14. The electrical discharge ozone generation cell of claim 13 , wherein the difference between the first predetermined thickness and the sum of the second and third predetermined thicknesses is in a range of (10 to 30) x10 −3 inches.

15. The electrical discharge ozone generation cell of claim 13 wherein the spacer plate comprises polycarbonate.

16. The electrical discharge ozone generation cell of claim 13 wherein the electrode plate comprises anodized aluminum infused with PTFE (Polytetrafluoroethylene).

17. The electrical discharge ozone generation cell of claim 13 wherein the first and second electrode base plates comprise aluminum.

18. The electrical discharge ozone generation cell of claim 13 wherein the gaskets comprises elastic material.

19. The electrical discharge ozone generation cell of claim 18 wherein the gaskets comprises FKM (fluoroelastomer) material.

20. An electrical discharge ozone generation cell comprising
a nonconductive spacer plate separating first and second electrode base plates, the spacer plate having two sides and interior edges defining a central opening in the spacer plate;
an electrode plate in intimate contact with the first electrode base plate, the electrode plate fitted within the central opening of the spacer plate, wherein the electrode plate comprises anodized aluminum infused with PTFE

(Polytetrafluoroethylene);
a dielectric plate in intimate contact with the second electrode base plate and with the spacer plate, a gas discharge chamber defined by the dielectric plate, the interior edges of the spacer plate and the electrode plate; and
gaskets on the two sides of the spacer plate around the central opening displaced away from the interior edges of the spacer plate whereby the gaskets ensure a gas seal for the gas discharge chamber at a reduced exposure to ozone in the gas discharge chamber.

21. The electrical discharge ozone generation cell of claim 20 wherein the spacer plate comprises polycarbonate.

22. The electrical discharge ozone generation cell of claim 20 wherein the first and second electrode base plates comprise aluminum.

23. The electrical discharge ozone generation cell of claim 20 wherein the gaskets comprises elastic material.

24. The electrical discharge ozone generation cell of claim 23 wherein the gaskets comprises FKM (fluoroelastomer) material.

25. An electrical discharge ozone generation cell comprising
a nonconductive flat spacer plate separating first and second electrode base plates, the spacer plate having two sides and interior edges defining a central opening in the spacer plate;
a flat electrode plate in intimate contact with the first electrode base plate, the electrode plate fitted within the central opening of the spacer plate;
a flat dielectric plate in intimate contact with the second electrode base plate and with the spacer plate, a gas discharge chamber defined by the dielectric plate, the interior edges of the spacer plate and the electrode plate;
gaskets on the two sides of the spacer plate around the central opening displaced away from the interior edges of the spacer plate whereby the gaskets ensure a gas seal for the gas discharge chamber at a reduced exposure to ozone in the gas discharge chamber; and
a clamping arrangement engaging peripheries of the first and second electrode base plates through the spacer plate; whereby the flat spacer plate, flat electrode plate, flat dielectric plate and gaskets are bound together between the first and second electrode base plates with minimal distortion.

26. The electrical d

Assignees

• Pacific Ozone Tech Inc
• Evoqua Water Tech Llc

Inventors

• Dempster Philip Tinsley

Classifications

• C01B2201/32

  Constructional details of the dielectrics · CPC title

• C01B2201/24

  Composition of the electrodes · CPC title

• C01B2201/12

  Plate-type dischargers · CPC title

• C01B13/11 Primary

  by electric discharge · CPC title

• C01B13/115 Primary

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