Electrochemical liquid treatment cell with modular construction

摘要

A cell for direct treatment of liquid using electrolysis uses a modular construction of electrode plates and spacer assemblies positioned between end plates. Changes in the liquid flow capacity of the cell may be made by changing the number of module housing sections and electrode plate assemblies. The design includes electrode plates that lock into a mating module housing section to resist the pressure of the fluid being treated. The design further provides for multiple fluid flow paths and for automatic cleaning of the cell using standard clean-in-place methods.

主权项

1. A liquid treatment cell for treating a liquid flow, the cell comprising:
a substantially planar first and second end plate together supporting at least one inlet port and one outlet port through an end plate; at least two electrode plates with at least one electrically conductive planar surface each having a periphery having first and second opposed edge pairs, with the first edge pair containing an interlocking element; at least one modular housing section providing a central aperture and composed of an insulating polymeric material in a rim around the central aperture, the rim receiving the interlocking element of a first electrode plate to resist relative movement of the rim of the modular housing section and first electrode plate from radial expansion of the rim about the aperture along a plane of the electrode plate, the interlocking element of the first electrode plate configured to limit outward deflection of the module housing section due to the pressure of the liquid inside the modular housing section, the modular housing section also abutting a second electrode plate to provide a channel of at least 5 mm wide through which liquid can flow between the electrode plates; at least one clamping element attachable to the first and second end plates to assemble a treatment system by drawing the end plates against a variable number of module housing sections positioned therebetween to assemble the insulating polymeric material of the modular housing sections together to provide a closed continuous channel for a flow between the inlet port and outlet port without leakage between modular housing sections with pressure of contained liquid so that the flow divides to pass between electrodes; and wherein the central aperture has an area no less than an area of the first electrode plate exposed to liquid flow, and wherein the first electrode plate is exposed to liquid flow through the aperture to the first electrode plate.