Magnet assembly with concentrator for providing flux lines perpendicular to fluid flow direction within steel pipe

A permanent magnet assembly for treating a fluid flowing inside a pipe having a pipe wall of predetermined dimensions, comprising:

• a pair of magnetic devices, each device comprising:
• a permanent magnet having two oppositely facing surfaces with opposite poles at said respective opposite surfaces,
• a pair of pole pieces, each pole piece comprising a generally L-shaped member, each pole piece having a proximal end and a distal end opposite to said proximal end,
• said proximal end of one of said pole pieces abutting one of said oppositely facing surfaces of said permanent magnet,
• said distal end of said one pole piece being a curved surface which conformingly mates with the outside surface of a pipe of predetermined dimensions,
• said proximal end of the other of said pole pieces abutting the other of said oppositely facing surfaces of said permanent magnet,
• said distal end of said other pole piece being a curved surface which conformingly mates with said outside surface of said pipe,
• said pair of magnetic devices each being shaped and sized so that when each device is assembled with said magnet sandwiched between said pole pieces with said proximal ends of said pole pieces abutting said respective oppositely facing surfaces of said magnet, said devices can be placed on opposite sides of said pipe at corresponding positions, with said distal ends of said pole pieces of each device longitudinally spaced along said pipe, with opposite poles of said respective devices facing each other, a magnetic field will extend between each pair of said facing opposite poles, across said pipe and transversely to the direction of fluid flow therein so that said fluid, flowing inside said pipe will cut said flux lines to generate an electrical current in said fluid so as to reduce scaling, corrosion, and algae buildup in said pipe.