Patent ID: 7950452

Claim:
An antifouling ion injection system for offshore drilling structures, comprising: a seawater header; an electrolysis tank being fluidly connected to said seawater header for receiving seawater, which is treated to create treated water; a first valve connecting said seawater header to said electrolysis tank; electrodes mounted within said electrolysis tank; instrumentation operable for impressing electrical power on said electrodes to create an ion concentration in said electrolysis tank; a plurality of seawater pumps for pumping seawater, said plurality of seawater pumps being operable for pumping at different flow rates and pressures with respect to each other, said instrumentation being operably connected to run signals for said plurality of sea water pumps to indicate individual pumping rate changes for each of said plurality of sea water pumps; a plurality of pipes associated with said plurality of seawater pumps whereby said plurality of pipes are operable for directing fluid flow at said different flow rates and different pressures; a plurality of fluid piping connections from said electrolysis tank operable to carry metallic ion treated water to said plurality of pipes associated with said plurality of seawater pumps; a plurality of ion concentration control valves and meters associated with said plurality of fluid piping connections controllable by said instrumentation, said instrumentation being operable for controlling flow of said metallic ion treated water into said plurality of pipes such that a selected range of ion concentration is maintained within plurality of pipes at said different flow rates and said different pressures and for pumping rate changes by controlling an ion concentration in said electrolysis tank and by controlling fluid flow through said plurality of ion concentration control valves, said instrumentation being operable for varying power to said electrodes and operating said plurality of ion concentration control valves in response to said run signals.