Housing and method that provide extended resident time for dissolving generated oxygen into water

• US 5,911,870 A
• Filed: 04/11/1997
• Issued: 06/15/1999
• Est. Priority Date: 04/11/1997
• Status: Expired due to Fees

• Current Assignee: H2o Technologies Ltd.
• Original Assignee: H2O Technologies, LLC
• Inventors: Hough, Gary S.
• Primary Examiner(s): Phasge, Arun S.
• Application Number:
  US08/827,873
• Time in Patent Office: 795 Days
• Field of Search: 205/701, 205/742, 205/756, 205/628, 205/633, 204/274, 204/275
• US Class Current: 205/701
• CPC Class Codes: C02F 1/001 Processes for the treatment of water whereby the filtration technique is of importance C02F1/44 takes precedence; construction of filters in general B01D24/00 - B01D41/00
• CPC Class Codes: C02F 1/283 using coal, charred products, or inorganic mixtures containing them
• CPC Class Codes: C02F 1/46104 Devices therefor; Their operating or servicing
• CPC Class Codes: C02F 1/4672 by electrooxydation
• CPC Class Codes: C02F 1/727 using pure oxygen or oxygen rich gas
• CPC Class Codes: C02F 2001/46152 characterised by the shape or form electrodes in particulate form or with conductive or non-conductive particles between them C02F1/46114
• CPC Class Codes: C02F 2201/4611 Fluid flow
• CPC Class Codes: C02F 2201/46155 Heating or cooling
• CPC Class Codes: C02F 2301/022 Laminar
• CPC Class Codes: C02F 2303/04 Disinfection

Abstract

An apparatus for increasing the quantity of dissolved oxygen in water. The apparatus includes an inlet for receiving untreated water. A cell housing having an electrolytic cell therein is coupled to the inlet. A translucent resident time housing is connected to the cell housing for receiving water containing oxygen and hydrogen gas. The resident time housing is vertically oriented and longitudinally extended for a selected vertical length above the cell housing. This provides sufficient resident time of the water in a quiet zone to permit the generated oxygen gas to transition into the dissolved state prior to reaching the top of the resident time housing. An outlet is provided at the top of the resident time housing to dispense water having a high dissolved oxygen content. A gas vent is provided at the outlet to permit the escape of hydrogen or other gases which have not been dissolved into the water. Preferably, a chill unit is provided prior to the electrolytic cell to reduce the temperature of the water. Chilling makes the water pleasing for human consumption, as well as increases the water'"'"'s ability to absorb dissolved oxygen. Additionally, a light or other artistic display may be provided adjacent to or with the resident time housing for the pleasure of viewers.

Claims

1. An apparatus for increasing the quantity of dissolved oxygen in water comprising:

an inlet for untreated water;

a cell housing having an electrolytic cell therein coupled to the inlet;

a resident time housing connected to the cell housing at a resident time housing inlet, the resident time housing being vertically oriented and longitudinally extending for a selected vertical length above the cell housing; and

an outlet at the top of the resident time housing for removing treated water therefrom.

2. The apparatus according to claim 1 wherein said resident time housing is a vertical tube having generally the same cross-sectional area as said cell housing for ensuring laminar flow of water from said cell housing into the resident time housing.

3. The apparatus according to claim 1 wherein said resident time housing is a straight, longitudinally extending tube having an unrestricted, constant cross-sectional area so that water may pass therethrough in laminar flow without encountering obstructions.

4. The apparatus according to claim 1 wherein the vertical length of said resident time housing above the cell housing is selected to ensure that a majority of gaseous oxygen present at the cell housing outlet transitions into dissolved oxygen before reaching the outlet at the top of the resident time housing.

5. The apparatus according to claim 4, further including:

a first removable coupling member positioned prior to the cell housing; and

a second removable coupling member positioned after the cell housing member for permitting the cell to be disconnected from said inlet and from said resident time housing for servicing the electrolytic cell therein.

6. The apparatus according to claim 1, further including a water chill unit positioned prior to said inlet for reducing the temperature of said water.

7. The apparatus according to claim 1, further including:

an outlet tube connected to said outlet for carrying treated water;

an outlet valve connected to said outlet tube for removing treated water from said outlet tube; and

a recirculation tube coupled from said outlet tube to said inlet for recirculating said treated water through said cell housing and said resident time housing.

8. The apparatus according to claim 7, further including a pump positioned in said recirculation tube for providing the recirculation flow of said water.

9. The apparatus according to claim 7, further including a gradual cross-sectional reduction member positioned in the outlet tube and shaped to gradually reduce the cross-sectional area from a large cross-sectional area to a smaller cross-sectional area in said outlet tube.

10. A method of increasing the quantity of dissolved oxygen in water comprising:

passing untreated water into an electrolytic cell that generates hydrogen gas and oxygen gas from the water;

passing treated water out of said electrolytic cell, said treated water containing hydrogen and oxygen in gaseous state immediately adjacent the exit of said electrolytic cell;

feeding the treated water to a vertical housing positioned directly above said electrolytic cell for a selected resident time period, said resident time period being selected to be sufficiently long that a majority of the oxygen in a gaseous state becomes dissolved oxygen in the treated water to increase the dissolved oxygen content of the water.

11. The method according to claim 10, further including the step of:

chilling the water to reduce the temperature of the water prior to passing the untreated water through the electrolytic cell so as to increase the capability of the water for retaining dissolved oxygen.

12. The method according to claim 10 wherein the transporting step includes:

flowing the water in a laminar flow pattern in an unrestricted tube for permitting gaseous oxygen to transition into the dissolved state without obstructions or turbulent flow in the flowing water.

13. The method according to claim 10, further including recirculating said treated water through said electrolytic cell.

14. The method according to claim 10, further including reducing the cross-sectional diameter of a flow tube positioned for water to flow therethrough, said reduction being a gradual reduction without a sudden transition so as to maintain substantial laminar flow of the volume of water passing therethrough.

15. An apparatus for increasing the quantity of dissolved oxygen in water, comprising:

an apparatus inlet;

an electrolytic cell housing coupled to the apparatus inlet containing an electrolytic cell; and

a resident time housing coupled to the electrolytic cell housing, the resident time housing extending a predetermined height, having an outlet, and being translucent to permit viewing of water within the resident time housing.

16. The apparatus of claim 15 wherein the height of the resident time housing is determined based on a target dissolved oxygen quantity.

17. The apparatus of claim 15, further comprising first and second coupling members coupled to the electrolytic cell housing.

18. The apparatus of claim 15, further comprising a water chilling unit coupled to the apparatus inlet.

19. The apparatus of claim 15, further comprising:

an outlet tube coupled to the resident time housing outlet;

an outlet valve coupled to the outlet valve; and

a recirculation line coupled between the outlet tube and the outlet valve.

20. The apparatus of claim 19, further comprising a pump positioned in the recirculation line.

21. The apparatus of claim 19 wherein the outlet tube further comprises a reduction member.

22. The apparatus of claim 19, further comprising a plurality of lights near the resident time housing and positioned to shine light through the resident time housing to enhance the viewing of water within the housing.

23. A method to increase the quantity of dissolved oxygen in water, comprising the steps of:

passing water through an electrolytic cell;

passing water from the electrolytic cell through a translucent, vertical housing; and

illuminating a plurality of lights positioned near the translucent vertical housing.

24. The method of claim 23, further comprising the step of ensuring the water undergoes laminar flow in passing from the electrolytic to the clear, vertical housing.

25. The method of claim 23, further comprising the step of reducing the water temperature.

26. The method of claim 23, further comprising the step of recirculating the water through the electrolytic cell.

27. The method of claim 23, further comprising the step of removing the water from the translucent, vertical housing.

28. An apparatus for increasing the quantity of dissolved oxygen in water, comprising:

an apparatus inlet for receiving water;

an electrolytic cell coupled to the apparatus inlet for releasing oxygen gas from the water;

a resident time housing coupled to the electrolytic cell for providing a quite period during which the released oxygen gas becomes dissolved oxygen, the resident time housing having a predetermined height, having an outlet, and being sufficiently translucent to permit viewing of the released oxygen gas; and

a plurality of lights positioned near the resident time housing for illuminating the released oxygen gas.

29. The apparatus of claim 28, further comprising first and second coupling members coupled to the electrolytic cell for enabling the electrolytic cell to be removed from the apparatus.

30. The apparatus of claim 28 wherein the resident time housing further comprises a cross-sectional area for ensuring laminar flow of the water from the electrolytic cell to the resident time housing.

31. The apparatus of claim 28, further comprising an outlet valve coupled to the resident time housing for removing water from the apparatus.

32. The apparatus of claim 28, further comprising a recirculation line and recirculation pump for recirculating water through the electrolytic cell.