DOUBLE-WALLED CHAMBER FOR ULTRA VIOLET RADIATION TREATMENT OF LIQUIDS

• US 20100187437A1
• Filed: 04/01/2010
• Published: 07/29/2010
• Est. Priority Date: 05/10/2002
• Status: Active Grant

• Current Assignee: Trojan Technologies Incorporated (Danaher Corporation)
• Original Assignee: Trojan Technologies Incorporated (Danaher Corporation)
• Inventors: UEBERALL, PETER
• Granted Patent: US 8,246,839 B2
• Time in Patent Office: Days
• US Class Current: 250/435
• CPC Class Codes: A61L 2/10 Ultraviolet radiation
• CPC Class Codes: B01J 19/123 Ultraviolet light
• CPC Class Codes: B01J 2219/0869 Feeding or evacuating the reactor
• CPC Class Codes: B01J 2219/0877 Liquid
• CPC Class Codes: C02F 1/325 Irradiation devices or lamp constructions
• CPC Class Codes: C02F 2201/3227 Units with two or more lamps
• CPC Class Codes: C02F 2301/02 Fluid flow conditions

Abstract

The object of the invention is a double-walled chamber for the UV disinfection of liquids, preferably drinking water and/or waste water. It realizes a rectangular and/or square cross-sectional shape of the UV radiation chamber even at higher pressures, whereby the radiation chamber can moreover be provided with a thin-walled configuration and allows an optimal and close arrangement of UV radiators as compared with a round chamber. By applying the inventive idea, the known dead zones at the entrance are completely eliminated and an entrance turbulence is produced which runs simultaneously with the piston flow in the chamber.

Claims

1. A double-walled chamber for the UV disinfection of liquids comprising:

(i) an inlet connection;

(ii) an outlet connection;

(iii) an outer pipe which encloses an inner pipe in which at least on UV radiation source is disposed and at whose ends there is a sealing cover in which there can also be an outlet and/or inlet opening, characterized in that the entrance of the liquid into the inner pipe with the radiation devices occurs through the intermediate space between the outer and inner pipe.

2. The double-walled chamber defined in claim 1, wherein the outer pipe is a circular pipe.

3. The double-walled chamber defined in claim 1, wherein the inner pipe has a rectangular cross section.

4. The double-walled chamber defined in claim 1, wherein the inner pipe has a circular cross section.

5. The double-walled chamber defined in claim 1, wherein at the outer pipe is non-circular.

6. The double-walled chamber defined in claim 1 wherein at the inner pipe is non-circular.

7. The double-walled chamber defined in claim 1, wherein at the inner pipe is non-rectangular.