公开(公告)号：US20210139352A1

公开(公告)日：2021-05-13

申请号：US16605152

申请日：2018-04-13

Applicant: Evoqua Water Technologies LLC

Inventor： Joshua Griffis ,  Andrew Green ,  Li-Shiang Liang ,  Paul Beddoes

IPC: C02F1/467

Abstract: Self-cleaning electrochemical cells, systems including self-cleaning electrochemical cells, and methods of operating self-cleaning electrochemical cells are disclosed. The self-cleaning electrochemical cell can include a plurality of concentric electrodes disposed in a housing, for example, a cathode and an anode, a fluid channel defined between the concentric electrodes, a separator residing between the concentric electrodes, first and second end caps coupled to respective ends of the housing, and an inlet cone. The separators may be configured to localize the electrodes and dimensioned to minimize a zone of reduced velocity occurring downstream from the separator. The end caps and inlet cone may be dimensioned to maintain fully developed flow and minimize pressure drop across the electrochemical cell.

公开(公告)号：US10808327B2

公开(公告)日：2020-10-20

申请号：US15561275

申请日：2016-02-17

Applicant: Evoqua Water Technologies LLC

Inventor： Joshua W. Griffis ,  Li-Shiang Liang ,  Paul Beddoes ,  Andrew Green ,  Simon P. Dukes ,  Jacob Telepciak

IPC: C25B1/26 ,  C02F1/461 ,  C02F1/467 ,  C25B9/00 ,  C25B9/06 ,  C25B9/08 ,  C25B11/03 ,  C25B11/04 ,  H01M8/18 ,  C02F103/08

Abstract: An electrochemical cell includes a cathode and an anode disposed in a housing. Each of the cathode and anode portions extending radially outward from a region proximate a central axis of the housing. A surface area of an active surface of the anode is greater than a surface area of an internal surface of the housing. A surface area of an active surface of the cathode is greater than a surface area of an internal surface of the housing.

公开(公告)号：US11958762B1

公开(公告)日：2024-04-16

申请号：US18112470

申请日：2023-02-21

Applicant: Evoqua Water Technologies LLC

Inventor： Andrew Green ,  Li-Shiang Liang ,  Joshua Griffis ,  Paul Beddoes

IPC: C02F1/00 ,  C02F1/461 ,  C02F1/467 ,  C02F103/08

CPC classification number: C02F1/46109 ,  C02F1/4674 ,  C02F2001/46119 ,  C02F2001/46171 ,  C02F2103/08 ,  C02F2201/4611 ,  C02F2201/46155 ,  C02F2303/04

Abstract: Self-cleaning electrochemical cells, systems including self-cleaning electrochemical cells, and methods of operating self-cleaning electrochemical cells are disclosed. The self-cleaning electrochemical cell can include a plurality of concentric electrodes disposed in a housing, a fluid channel defined between the concentric electrodes, and an electrical connector positioned at a distal end of a concentric electrode and electrically connected to the electrode. The electrical connectors may be configured to provide a substantially even current distribution to the concentric electrode and minimize a zone of reduced velocity occurring downstream from the electrical connector. The electrical connector may be configured to cause a temperature of an electrolyte solution to increase by less than about 0.5° C. while transmitting at least 100 W of power.

公开(公告)号：US20210107812A1

公开(公告)日：2021-04-15

申请号：US16603017

申请日：2018-04-13

Applicant: Evoqua Water Technologies LLC

Inventor： Andrew Green ,  Li-Shiang Liang ,  Joshua Griffis ,  Paul Beddoes

IPC: C02F1/461 ,  C02F1/467

Abstract: Self-cleaning electrochemical cells, systems including self-cleaning electrochemical cells, and methods of operating self-cleaning electrochemical cells are disclosed. The self-cleaning electrochemical cell can include a plurality of concentric electrodes disposed in a housing, a fluid channel defined between the concentric electrodes, and an electrical connector positioned at a distal end of a concentric electrode and electrically connected to the electrode. The electrical connectors may be configured to provide a substantially even current distribution to the concentric electrode and minimize a zone of reduced velocity occurring downstream from the electrical connector. The electrical connector may be configured to cause a temperature of an electrolyte solution to increase by less than about 0.5° C. while transmitting at least 100 W of power.

公开(公告)号：US20210087081A1

公开(公告)日：2021-03-25

申请号：US16975125

申请日：2019-02-22

Applicant: Evoqua Water Technologies LLC ,  Evoqua Water Technologies Limited

Inventor： Joshua Griffis ,  Simon Dukes ,  Paul Beddoes ,  Peter G. Rogers

IPC: C02F1/461 ,  C02F1/467

Abstract: An electrochlorination system comprises a source of feed fluid, a product fluid outlet, and a plurality of electrochemical cells connected fluidically between the source of feed fluid and the product fluid outlet. The system is configured to operate at least one of the plurality of electrochemical cells at one of a first current density or a first flow rate, and to operate another of the plurality of electrochemical cells at a second current density or second flow rate different from the respective first current density or first flow rate.

公开(公告)号：US20180119295A1

公开(公告)日：2018-05-03

申请号：US15561275

申请日：2016-02-17

Applicant: EVOQUA WATER TECHNOLOGIES LLC

Inventor： Joshua W. Griffis ,  Li-Shiang Liang ,  Paul Beddoes ,  Andrew Green ,  Simon P. Dukes ,  Jacob Telepciak

IPC: C25B1/26 ,  C25B9/08 ,  C25B11/03 ,  C25B11/04

Abstract: An electrochemical cell includes a cathode and an anode disposed in a housing. Each of the cathode and anode portions extending radially outward from a region proximate a central axis of the housing. A surface area of an active surface of the anode is greater than a surface area of an internal surface of the housing. A surface area of an active surface of the cathode is greater than a surface area of an internal surface of the housing.