Back to results
US 7,018,544 B2Granted
Fluid treatment device
AssigneeTrojan Technologies Inc.
InventorsRobert J. Veenstra, Douglas G. Penhale, Alan J. Royce
Life of this patent
Estimating the term…
Abstract
A fluid treatment device, preferably for the treatment of water, is described. The device comprises a closed housing having a fluid inlet, a fluid outlet and a fluid treatment zone disposed between the fluid inlet and the fluid outlet. The fluid treatment zone comprises a first irradiation zone and a second irradiation zone. At least one fluid mixing element is interposed between the first irradiation zone and the second irradiation zone.
Claims41
A fluid treatment device comprising:
- a closed housing having a fluid inlet,
- a fluid outlet,
- a fluid treatment zone disposed between the fluid inlet and the fluid outlet, the fluid treatment zone comprising a first irradiation zone comprising a first plurality of elongate radiation sources and a second irradiation zone downstream of the first irradiation zone and comprising a second plurality of elongate radiation sources independent of the first plurality of elongate radiation sources, and
- at least one non-annular fluid mixing element interposed between the first irradiation zone and the second irradiation zone;
- wherein each of the first plurality of elongate radiation sources and the second plurality of elongate radiation sources has a longitudinal axis disposed substantially parallel to a direction of fluid flow through the housing.
2 more elements
A fluid treatment device comprising:
- a closed housing having a fluid inlet,
- a fluid outlet,
- a fluid treatment zone disposed between the fluid inlet and the fluid outlet, the fluid treatment zone comprising a first irradiation zone and a second irradiation zone, and
- at least one fluid mixing element interposed between the first irradiation zone and the second irradiation zone, wherein the mixing element is secured to a surface of the housing.
1 more element
A fluid treatment device comprising:
- a closed housing having a fluid inlet,
- a fluid outlet,
- a fluid treatment zone disposed between the fluid inlet and the fluid outlet, the fluid treatment zone comprising a first irradiation zone and a second irradiation zone, and
- at least one fluid mixing element interposed between the first irradiation zone and the second irradiation zone, wherein the fluid inlet, the fluid outlet, and the remainder of the housing comprise a plurality of independent units which are engaged in substantially fluid tight manner.
1 more element
A fluid treatment device comprising:
- a closed housing having a fluid inlet,
- a fluid outlet,
- a fluid treatment zone disposed between fluid inlet and the fluid outlet, the fluid treatment zone comprising a first irradiation zone and a second irradiation zone, and
- at least one fluid mixing element interposed between the first irradiation zone and the second irradiation zone;
- wherein the fluid inlet and a first portion of the housing form a first integral unit, and wherein the fluid outlet and a second portion of the housing form a second integral unit, the first integral unit and the second integral unit being interconnecting in a substantially fluid tight manner.
2 more elements
A fluid treatment device comprising:
- a closed housing having a fluid inlet,
- a fluid outlet,
- a fluid treatment zone disposed between the fluid inlet and the fluid outlet, the fluid treatment zone comprising a first irradiation zone and second irradiation zone, and
- at least one fluid mixing element interposed between the first irradiation zone and the second irradiation zone, wherein the fluid mixing element comprises a plurality of mixing vanes, each vane angularly oriented with respect to a direction of fluid flow through the housing.
1 more element
A fluid treatment system comprising at least one fluid treatment device comprising:
- a closed housing having a fluid inlet,
- a fluid outlet,
- a fluid treatment zone disposed between the fluid inlet and the fluid outlet, the fluid treatment zone comprising (i) a first irradiation zone having a first radiation source and (ii) a second irradiation zone having a second radiation source, and
- at least one fluid mixing element interposed between the first irradiation zone and the second irradiation zone, said fluid mixing element including fluid mixing structure which is not in contact with either the first radiation source or the second radiation source.
1 more element
A fluid treatment system comprising at least one fluid treatment device comprising:
- a closed housing having a fluid inlet,
- a fluid outlet,
- a fluid treatment zone disposed between the fluid inlet and the fluid outlet, the fluid treatment zone comprising (i) a first irradiation zone having a first radiation source and (ii) a second irradiation zone having a second radiation source, and
- at least one mixing element interposed between the first irradiation zone and the second irradiation zone, said fluid mixing element including fluid mixing structure which is not in contact with either the first radiation source or the second radiation source.
1 more element
A method of treating fluid comprising the steps of:
- providing a fluid treatment device in a fluid treatment zone, the fluid treatment device comprising (i) a closed housing having a fluid inlet, and (ii) a fluid outlet,
- providing the fluid treatment zone between the fluid inlet and the fluid outlet, the fluid treatment zone comprising a first irradiation zone and second irradiation zone;
- providing at least one or more elongate radiation sources each having a longitudinal axis disposed substantially parallel to a direction of fluid flow through the treatment device;
- providing ate least one non-annular fluid mixing element interposed between the first irradiation zone and the second irradiation zone;
- and
- feeding fluid to be treated through the fluid treatment device.
3 more elements
Dependencies are inferred from the claim text.