Apparatus for removal of ions, and a method for removal of ions

摘要

An apparatus and a method to remove ions from water. The apparatus has a housing, an inlet to let water into the housing, an outlet to let water out of the housing, a first and second electrode connected to a power supply configured to create an electrical potential difference between the first and the second electrodes, and a spacer between the first and second electrodes to allow water to flow in between the first and second electrodes. The apparatus includes a velocity adjuster constructed and arranged to adjust a flow velocity of a first portion of the water flowing between the first and second electrodes with respect to a second portion of the water flowing between the first and second electrodes.

主权项

1. An apparatus to remove ions from water, the apparatus comprising:
an inlet to let water into a housing an outlet to let water out of the housing; a first electrode and a second electrode, connected to a power controller configured to apply an electrical potential difference between the first and second electrodes; and a velocity adjuster constructed and arranged to adjust a flow velocity of a first portion of the water flowing between the first and second electrodes with respect to a second portion of the water flowing between the first and second electrodes, wherein the velocity adjuster comprises a porous material and a flow resistance in a central region of the velocity adjuster is larger than closer to an edge of the velocity adjuster, causing the velocity of water passing through the central region of the velocity adjuster to be reduced compared to water passing closer to the edge of the velocity adjuster, wherein the first portion of the water is flowing further away from the first electrode or the second electrode than the second portion of the water.