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US 2026/0209081 A1Published application
A uv-germicidal irradiation system for germicidal treatment of liquids
AssigneeLyras DK ApS
InventorsKasper Dalager VESTDAM, Thomas Yssing MICHAELSEN, Mathias Kræmmergaard KRISTENSEN
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Abstract
A UV-germicidal irradiation system for treatment of liquids, such as opaque liquids, wherein the UV-germicidal treatment system includes a spiral-shaped tube creating a coiled fluidic pathway extending along a longitudinal axis and one or more light sources configured for illuminating the spiral-shaped tube.
Claims25
A UV-germicidal irradiation system for treatment of liquids, such as opaque liquids, wherein the UV-germicidal treatment system comprises:
- at least one tube creating a fluidic pathway, the at least one tube comprising an inlet section, a coil section, and an outlet section, wherein the coil section is a spiral-shaped tube creating a coiled fluidic pathway extending along a longitudinal axis of the spiral-shaped tube from the inlet section to the outlet section, wherein the spiral-shaped tube comprises a polymeric material being at least ultraviolet light transparent at wavelengths between 180 and 315 nm;
- one or more light sources configured for illuminating the coiled fluidic pathway of the spiral-shaped tube, wherein the one or more light sources emit light with at least one wavelength within a wavelength range between 180 nm and 315 nm;
- wherein the spiral-shaped tube comprises an internal diameter (ID) between 2 mm and 20 mm, a wall thickness (WT) between 5% and 15% of the internal diameter (ID), and an inner coil diameter (ICD) equal to or less than 80 mm;
- wherein the spiral-shaped tube comprises a radius of curvature (RC) between 2.0 and 5.0 times the internal diameter (ID), wherein the radius of curvature (RC) of the spiral-shaped tube is calculated according to an equation set forth below:
- RC
- =
- (
- (
- ICD
- +
- ID
- )
- /
- 2
- )
- +
- WT
- wherein the spiral-shaped tube is geometrically configured for creating a flow of a liquid in the coiled fluidic pathway comprising a Dean number between 300 and 30000.
15 more elements
(canceled)
(canceled)
A method of germicidal treatment of an industrial fermentation liquid, the method comprising:
- providing an industrial fermentation liquid to be treated;
- passing the industrial fermentation liquid to be treated through at least one tube in a UV-germicidal irradiation system at a predefined flow speed, the UV-germicidal irradiation system comprising:
- at least one tube creating a fluidic pathway, the at least one tube comprising an inlet section, a coil section, and an outlet section, wherein the coil section is a spiral-shaped tube creating a coiled fluidic pathway extending along a longitudinal axis of the spiral-shaped tube from the inlet section to the outlet section, wherein the spiral-shaped tube comprises a polymeric material being at least ultraviolet light transparent at wavelengths between 180 and 315 nm;
- one or more light sources configured for illuminating the coiled fluidic pathway of the spiral-shaped tube, wherein the one or more light sources emit light with at least one wavelength within a wavelength range between 180 nm and 315 nm;
- wherein the spiral-shaped tube comprises an internal diameter (ID) between 2 mm and 20 mm, a wall thickness (WT) between 5% and 15% of the internal diameter (ID), and an inner coil diameter (ICD) equal to or less than 80 mm;
- wherein the spiral-shaped tube comprises a radius of curvature (RC) between 2.0 and 5.0 times the internal diameter (ID), wherein the radius of curvature (RC) of the spiral-shaped tube is calculated according to an equation set forth below:
- RC
- =
- (
- (
- ICD
- +
- ID
- )
- /
- 2
- )
- +
- W
-
- T
- wherein the spiral-shaped tube is geometrically configured for creating a flow of a liquid in the coiled fluidic pathway comprising a Dean number between 300 and 30000;
- wherein the method further comprises:
- wherein the passing the industrial fermentation liquid to be treated through at least one tube in a UV-germicidal irradiation system is performed while illuminating the coiled fluidic pathway of the spiral-shaped tube with at least one wavelength within a wavelength range between 180 nm and 315 nm from the one or more light sources at a predefined power-output to obtain a germicidal treated fermentation liquid;
- and
- collecting the germicidal treated fermentation liquid.
23 more elements
Dependencies are inferred from the claim text.