PROBLEM TO BE SOLVED: To provide a method for rationally utilizing magnetism and far infrared rays.;SOLUTION: Flat piping 1 is used as a strong magnetic field forming means in order to reduce the opposed interpole distance between permanent magnets 2 and the cross-sectional area of the piping is reduced at the same time to increase the flow velocity in the piping to enhance magnetic hydrodynamic effect. Magnetic circuits are formed on the rears of the permanent magnets 2 not only to concentrate all of the magnetomotive forces of the permanent magnets to the formation of a magnetic field in the piping but also to prevent the deterioration of the permanent magnets with the elapse of time to semipermanently keep the life thereof. Pole pieces are mounted on the permanent magnets to concentrate magnetic flux to a narrow region to form a magnetic field high in flux density to enhance magnetic hydrodynamic effect. The periphery of the piping is filled with far infrared emitting ceramics to emit far infrared rays using the circumferential temperature as drive force to reflect the same from the inner surface of a cover and the reflected far infrared rays are concentrated to the piping to supply far infrared energy to a fluid efficiently to excite the motion of the molecules to activate the fluid.;COPYRIGHT: (C)2001,JPO
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