Fluid treatment device

• US 8,187,444 B2
• Filed: 08/10/2007
• Issued: 05/29/2012
• Est. Priority Date: 08/10/2007
• Status: Expired due to Fees

• Current Assignee: Eric John Kruger
• Original Assignee: Eric John Kruger
• Inventors: Kruger, Eric John
• Primary Examiner(s): Ball, J. Christopher
• Application Number:
  US11/837,225
• Publication Number:
  US 20090038944A1
• Time in Patent Office: 1,754 Days
• Field of Search: 204/555, 204/228.6, 204/229.5, 204/230.6, 205/789.5, 210/746, 210/739, 422/82.02
• US Class Current: 204/663
• CPC Class Codes: C02F 1/4602 for prevention or elimination of deposits
• CPC Class Codes: C02F 2103/023 Water in cooling circuits
• CPC Class Codes: C02F 2201/4611 Fluid flow
• CPC Class Codes: C02F 2201/46125 Electrical variables
• CPC Class Codes: C02F 2201/4613 Inversing polarity
• CPC Class Codes: C02F 2201/4615 Time
• CPC Class Codes: C02F 2201/46175 Electrical pulses
• CPC Class Codes: C02F 2209/008 comprising telecommunication features, e.g. modems or antennas
• CPC Class Codes: C02F 2209/05 Conductivity or salinity

Abstract

A fluid treatment device is disclosed. The fluid treatment device includes at least a first electrode and a second electrode in direct contact with the fluid. The fluid treatment device may include a control device which adjusts a parameter of an alternating potential difference provided between the first electrode and the second electrode based on the indication of the conductivity between the first electrode and the second electrode.

Claims

1. A fluid treatment device for treating a fluid, comprising:

a conduit having an interior through which the fluid travels;

at least a first electrode and a second electrode placed in direct contact with the fluid within the conduit, each of the first electrode and the second electrode including at least a first fluid directing surface positioned relative to the conduit to redirect the fluid traveling through the conduit away from a wall of the conduit and between the first electrode and the second electrode; and

a control device coupled to the first electrode and the second electrode to provide a potential difference between the first electrode and the second electrode by causing a current to flow through the fluid from one of the first electrode and the second electrode to the other of the first electrode and the second electrode, the control device alternating a flow direction of the current over time, wherein during a first time period current flows from the first electrode through the fluid to the second electrode and during a second time period current flows from the second electrode through the fluid to the first electrode.

2. The fluid treatment device of claim 1, wherein the first electrode and the second electrode each include a main treatment surface coupled to the first fluid directing surface, the main treatment surface of the first electrode being generally parallel to the main treatment surface of the second electrode.

3. The fluid treatment device of claim 1, wherein the conduit is made of a non-metallic material.

4. The fluid treatment device of claim 3, wherein the first electrode and the second electrode are supported by the conduit.

5. A fluid treatment device for treating a water based fluid, comprising:

a non-conductive pipe through which the water based fluid travels in a first direction along a longitudinal axis of the non-conductive pipe;

at least a first electrode and a second electrode placed within the non-conductive pipe and in direct contact with the water based fluid, a portion of the first electrode extending through a wall of the non-conductive pipe in a second direction perpendicular to the first direction and a portion of the second electrode extending through the wall in a third direction perpendicular to the first direction;

a control device coupled to the portion of the first electrode and the portion of the second electrode to provide an alternating potential difference between the first electrode and the second electrode and to monitor a conductivity between the first electrode and the second electrode, wherein at least one characteristic of the alternating potential difference is adjusted by the control device based on an indication of the conductivity between the first electrode and the second electrode.

6. The fluid treatment device of claim 5, wherein the first electrode includes a first generally flat main treatment surface and the second electrode includes a second generally flat main treatment surface, the second generally flat main treatment surface being generally parallel to the first generally flat main treatment surface.

7. The fluid treatment device of claim 6, wherein, the at least one characteristic includes a peak voltage of the alternating potential difference and a duty cycle of the alternating potential difference, wherein in response to an increase in the conductivity between the first electrode and the second electrode the control device first reduces the peak voltage until a threshold peak voltage is reached and subsequently reduces the duty cycle of the alternating potential difference.