OZONE GENERATOR UNIT AND SYSTEM

• US 20190071310A1
• Filed: 10/25/2018
• Published: 03/07/2019
• Est. Priority Date: 08/05/2016
• Status: Active Grant

• Current Assignee: Xylem Europe GmbH (Xylem, Inc.)
• Original Assignee: Ozone Inventions Limited
• Inventors: ARLEMARK, Jan
• Granted Patent: US 10,336,612 B2
• Time in Patent Office: Days
• CPC Class Codes: C01B 13/11 by electric discharge
• CPC Class Codes: C01B 13/115 characterised by the electrical circuits producing the electrical discharge
• CPC Class Codes: C01B 2201/12 Plate-type dischargers
• CPC Class Codes: C01B 2201/22 Constructional details of the electrodes
• CPC Class Codes: C01B 2201/32 Constructional details of the dielectrics
• CPC Class Codes: C01B 2201/34 Composition of the dielectrics
• CPC Class Codes: C01B 2201/40 using several dischargers in series
• CPC Class Codes: C01B 2201/72 by air
• CPC Class Codes: C01B 2201/76 Water
• CPC Class Codes: C01B 2201/90 Control of the process
• CPC Class Codes: C02F 1/78 with ozone C02F1/4672 takes precedence
• CPC Class Codes: C02F 2201/782 Ozone generators

Abstract

An ozone generator unit includes a housing with a first half having a first recess and a second half having a second recess. The ozone generator unit further includes an inlet and an outlet in the housing, a first dielectric disc arranged within the first recess in contact with an inner surface of the first half, a second dielectric disc arranged within the second recess in contact with an inner surface of the second half, and a high voltage electrode, having a gas passage, arranged between the first and second dielectric discs. The high voltage electrode is spaced apart from the first and second dielectric discs using a first spacer and a second spacer to constitute a first gas chamber and a second gas chamber on either side of the high voltage electrode.

Claims

1. An ozone generator unit comprising:

a housing (102) comprising;

a first half (104) having a first recess (204); and

a second half (106) having a second recess (206), wherein the first half is coupled to the second half for allowing the first and second recesses to form a main chamber (208) within the housing;

an inlet (202) and an outlet (110) in the housing and extending to the main chamber;

wherein

a first dielectric disc (210), arranged within the first recess (204) in contact with an inner surface (240) of the first half (104);

a second dielectric disc (214), arranged within the second recess (206) in contact with an inner surface (242) of the second half (106), wherein at least the first dielectric disc has a gas passage (212); and

a high voltage electrode (218), having a gas passage (220), arranged in the main chamber (208) and between the first and second dielectric discs, wherein the high voltage electrode is spaced apart from the first and second dielectric discs using a first spacer (230) and a second spacer (232) to constitute a first gas chamber (250) and a second gas chamber (252) on either side of the high voltage electrode, and

wherein the gas passage of the high voltage electrode and the gas passage of the first dielectric disc fluidically couple the first and second gas chambers.

2. An ozone generator unit according to claim 1, wherein the housing (102) is operable to be subjected to air cooling.

3. An ozone generator unit according to claim 1, wherein at least a portion of an outer surface of the first and the second halves (104,106) comprises a plurality of cooling fins (120).

4. An ozone generator unit according to claim 1, further comprising an insulating ring (270) arranged between the inner surfaces of the first and the second halves (104,106), and periphery of the high voltage electrode (218) and the first and second dielectric discs (210,214).

5. An ozone generator unit according to claim 4, further comprising at least one sealing ring (272) arranged between the insulating ring (270) and the inner surfaces of the first and the second halves (104,106).

6. An ozone generator unit according to claim 1, wherein a peripheral edge of the high voltage electrode (218) comprises a plurality of grooves (222).

7. An ozone generator unit according to claim 1, wherein the first and the second halves (104,106) are made of aluminium.

8. An ozone generator unit according to claim 1, wherein the first and second dielectric discs (210,214) are made of one of aluminate or quartz glass.

9. An ozone generator unit according to claim 1, wherein the first and second dielectric discs (210,214) are coated with a layer of metal on a surface of the first and second dielectric discs in contact with the first and the second halves (104,106).

10. An ozone generator unit according to claim 1, wherein a distance of the high voltage electrode (218) from the first and second dielectric discs lies within a range of 0.05 millimetres and 0.2 millimetres.

11. An ozone generator unit according to claim 1, wherein each of the first recess (204) and the second recess (206) is configured to have one of a geometrical shape including cylindrical, cubical, cuboidal, hemispherical and any combination thereof.

12. An ozone generator unit according to claim 1, wherein the inlet (202) and the outlet (110) are arranged radially or axially on the housing (102).

13. An ozone generator unit according to claim 12, wherein the inlet (202) and the outlet (110) are arranged centrally or peripherally on the housing (102).

14. An ozone generator unit according to claim 12, wherein the inlet (202) is arranged axially in a centre area of the housing (102) and wherein the outlet (110) is arranged radially in the housing (102).

15. An ozone generator system comprising:

at least one ozone generator unit (302,304,306), the at least one ozone generator unit comprising;

a housing (102) comprising;

a first half (104) having a first recess (204); and

a second half (106) having a second recess (206), wherein the first half is coupled to the second half for allowing the first and second recesses to form a main chamber (208) within the housing;

an inlet (202) and an outlet (110) in the housing and extending to the main chamber;

wherein

a first dielectric disc (210), arranged within the first recess (204) in contact with an inner surface (240) of the first half (104);

a second dielectric disc (214), arranged within the second recess (206) in contact with an inner surface (242) of the second half (106), wherein at least the first dielectric disc has a gas passage (212); and

a high voltage electrode (218), having a gas passage (220), arranged in the main chamber (208) and between the first and second dielectric discs, wherein the high voltage electrode is spaced apart from the first and second dielectric discs using a first spacer (230) and a second spacer (232) to constitute a first gas chamber (250) and a second gas chamber (252) on either side of the high voltage electrode, and wherein the gas passage of the high voltage electrode and the gas passage of the first dielectric disc fluidically couple the first and second gas chambers;

a first bracket (310) attached to the inlet (202) of each of the at least one ozone generator units (302,304,306);

a second bracket (312) attached to the outlet (110) of each of the at least one ozone generator units;

at least one control circuit (320,322,324) associated with each of the at least one ozone generator units; and

at least one fan (340,342,344)arranged in front of an outer surface of each of the at least one ozone generator units.

16. An ozone generator system according to claim 15, wherein the outer surface of each of the at least one ozone generator units (302,304,306) comprises a plurality of cooling fins (350,352,354).