Water treating reactor for the drinkability thereof

• US 7,683,354 B2
• Filed: 01/04/2006
• Issued: 03/23/2010
• Est. Priority Date: 01/21/2005
• Status: Expired due to Fees

• Current Assignee: Veolia Water Solutions & Technologies Support
• Original Assignee: OTV S.A. (Veolia Environnement SA)
• Inventors: Vanpeene, Christian, Girodet, Pierre
• Primary Examiner(s): Wells; Nikita
• Assistant Examiner(s): Sahu; Meenakshi S
• Application Number:
  US11/814,343
• Publication Number:
  US 20080105606A1
• Time in Patent Office: 1,539 Days
• Field of Search: 250/431, 250/436, 250/437, 250/453.11, 250/454.11, 210/748, 210/96.1, 210/185, 210/192, 210/198.1
• US Class Current: 250/504.00R
• CPC Class Codes: C02F 1/325 Irradiation devices or lamp constructions
• CPC Class Codes: C02F 2201/3227 Units with two or more lamps

Abstract

A water treating device includes a cylindrical housing having a longitudinal axis, an inlet and an outlet. Water to be treated enters the inlet, flows through the cylindrical housing and out the outlet. A plurality of elongated UV lamps are disposed in the cylindrical housing. The UV lamps extend generally in the same direction as the longitudinal axis of the cylindrical housing, but are disposed in a non-parallel relationship with the longitudinal axis of the cylindrical housing. Typically one end portion of each of the UV lamps is spaced outwardly from the longitudinal axis of the cylindrical housing. Along the length of each of the UV lamps, the distance between the longitudinal axis of the UV lamps and the longitudinal axis of the cylindrical housing varies.

Claims

1. A water treating device for treating drinking water, comprising;

a substantially cylindrical housing having a longitudinal axis, an inlet, and an outlet, and wherein water to be treated flows into the inlet, through a flowpath in the cylindrical housing and out the outlet;

a plurality of elongated UV lamps disposed in the cylindrical housing the UV lamps being arranged within the cylindrical housing such that the longitudinal axis of a series of the UV lamp forms a non-zero and non 90°

angle with a longitudinal axis of the cylindrical housing; and

wherein each of the UV lamps includes opposite ends, and wherein at least one end of each of the plurality of UV lamps are supported within the cylindrical housing and lie within the flowpath of the water flowing through the cylindrical housing.

2. The water treating device of claim 1, wherein said angle is less than 45°

.

3. The water treating device of claim 1, wherein a plurality of the UV lamps are arranged inside the housing by forming a plurality of non-zero angles smaller than 90°

with the longitudinal axis of the cylindrical housing.

4. The water treating device of claim 1, wherein said outlet or inlet supports one or more of the UV lamps.

5. The water treating device of claim 1, wherein the inlet or outlet includes a flange for receiving and supporting at least some of the UV lamps disposed within the cylindrical housing.

6. The water treating device of claim 5, wherein the flange that supports at least some of the UV lamps includes a circumferential flange spaced outwardly with respect to the longitudinal of the cylindrical housing.

7. The water treating device of claim 1, wherein the other end of each of the plurality of UV lamps lie outside of the cylindrical housing.

8. The water treating device of claim 1, including first and second sets of UV lamps, the first set of UV lamps forming at least one non-zero angle ∂

1 with the longitudinal axis of the cylindrical housing and the second series of UV lamps forming at least one non-zero angle ∂

2 different from angle ∂

1, with a longitudinal plane P of the cylindrical housing.

9. The water treating device of claim 8, wherein the first set of UV lamps form an acute angle ∂

′

1 with a plane P′

perpendicular to the plane P, and wherein the second set of UV lamps form an acute angle ∂

′

2 with the plane P′

.

10. The water treating device of claim 1, wherein the water treating device includes first and second sets of UV lamps;

the first set of UV lamps supported at one end by an access member disposed on one end portion of the cylindrical housing and supported at the other end in the cylindrical housing;

the second set of UV lamps supported at one end by a second access member disposed about an opposite end portion of the cylindrical housing and supported at the other end in the cylindrical housing.

11. The water treating device of claim 10 wherein said second set of UV lamps includes a first series of UV lamps forming at least one first zero or non-zero angle β

1 with a longitudinal plane P of the cylindrical housing and a second series of UV lamps forming at least one second non-zero angle β

2 different from angle β

1 with the plane P.

12. The water treating device of claim 11, wherein the first series of UV lamps form an acute angle β

′

1 with a plane P′

perpendicular to the plane P, and the UV lamps of the second series form an acute angle β

′

2 with the plane P′

.

13. The water treating device of claim 1, including a support disposed in the cylindrical housing for receiving and supporting the ends of a plurality of UV lamps;

the support including a central portion for receiving and supporting the ends of a plurality of UV lamps and an outer portion, spaced outwardly from the central portion, for receiving and supporting the ends of a plurality of the UV lamps.

14. The water treating device of claim 13, wherein the support assumes a generally star shape.

15. The water treating device of claim 13, wherein the support includes a plurality of branches that extend radially from the central portion.

16. A water treating device for treating drinking water, comprising;

a cylindrical housing having a longitudinal axis;

an inlet for directing water to be treated into the cylindrical housing;

an outlet for directing treated water from the cylindrical housing;

a plurality of elongated UV lamps for treating the water passing through the cylindrical housing;

each UV lamp including a longitudinal axis and opposite ends, and wherein one end of each of the plurality of UV lamps lie outside of the cylindrical housing and the other end of each of the plurality of UV lamps are supported within the cylindrical housing;

the plurality of UV lamps being skewed with respect to the longitudinal axis of the cylindrical housing such that the longitudinal axis of each of the UV lamps extends generally longitudinally through the cylindrical housing and such that the UV lamps in the housing converge towards the longitudinal axis of the housing.

17. The water treating device of claim 16, wherein the plurality of UV lamps include a first series of UV lamps and a second series of UV lamps, and wherein the two series of UV lamps converge from opposite directions in the cylindrical housing.

18. The water treating device of claim 16, wherein the water treating device includes an inlet end portion, an outlet end portion and two sets of UV lamps, one set of UV lamps that converge from the inlet end portion of the cylindrical housing towards the outlet end portion and a second set of UV lamps that converge from the outlet end portion to the inlet end portion.

19. The water treating device of claim 16 including a UV lamp support structure disposed exteriorly of the cylindrical housing;

and wherein the UV lamps project through the cylindrical housing and the ends of the UV lamps that lie outside of the cylindrical housing are held and supported by the UV lamp support structure disposed exteriorly of the cylindrical housing.

20. The water treating device of claim 19 wherein the UV lamp support structure includes a collar that projects outwardly from the cylindrical housing and extends around the cylindrical housing;

a series of circumferentially spaced openings formed in the collar for receiving and holding the ends of the UV lamps that lie outside of the cylindrical housing.

21. The water treating device of claim 19 wherein the ends of the UV lamps that are supported within the cylindrical housing are supported at points around the longitudinal axis of the cylindrical housing, and wherein the ends of the UV lamps that are supported within the cylindrical housing are supported at points that are generally equal distances from the longitudinal axis of the cylindrical housing.

22. A water treating device for treating drinking water, comprising:

a housing having a longitudinal axis;

an inlet for directing water to be treated into the housing;

an outlet for directing treated water from the housing;

the housing including an internal chamber for containing water flowing through the chamber;

a plurality of UV lamps for treating water flowing through the internal chamber of the housing;

each UV lamp projecting through the housing and having an internal end portion disposed in the internal chamber and an external end portion that projects outwardly from the internal chamber and is disposed exteriorly of the housing;

wherein the internal end portion of each UV lamp is skewed with respect to the longitudinal axis of the housing;

an internal support disposed within the internal chamber for receiving and supporting the internal end portions of the UV lamps;

an external UV lamp support structure disposed exteriorly of the internal chamber and disposed outwardly of the housing;

the external end portions of the UV lamps projecting outwardly from the housing and being received and held by the external UV lamp support structure such that the external end portions of the UV lamps are accessible externally of the housing so as to permit their respective UV lamps to be easily replaced without requiring direct access to the internal chamber.

23. The water treating device of claim 22 wherein the housing and internal chamber are generally elongated and wherein the internal portions of the UV lamps extend generally longitudinally through the internal chamber and wherein the internal portions of the UV lamps generally converge towards the longitudinal axis of the housing.

24. The water treating device of claim 23 wherein the UV lamps include first and second sets of UV lamps with the first set of UV lamps projecting in one direction through the internal chamber, and the second set of UV lamps protecting in a second direction through the internal chamber, and wherein the UV lamps of the first and second sets crisscross in the internal chamber.

25. A water treating device for treating drinking water, comprising;

a cylindrical housing having a longitudinal axis;

an inlet for directing water to be treated into the cylindrical housing;

an outlet for directing treated water from the cylindrical housing;

a plurality of elongated UV lamps for treating the water passing through the cylindrical housing, each UV lamp including a longitudinal axis and opposite ends, and wherein one end of each of the plurality of UV lamps lie outside of the cylindrical housing and the other end of each of the plurality of UV lamps are supported within the cylindrical housing;

a support structure, for receiving and supporting the plurality of UV lamps, disposed within the cylindrical housing;

a first set of the plurality of UV lamps having ends circumferentially spaced and supported by the support structure at a first radius relative to the longitudinal axis; and

a second set of the plurality of UV lamps having ends circumferentially spaced and supported by the support structure at a second radius relative to the longitudinal axis;

wherein the plurality of UV lamps extending generally longitudinally through the cylindrical housing such the plurality of UV lamps converge towards longitudinal axis.