Substances Formed in Water Circulating in Boilers and Steam Piping and Their Magnetic Removal

S. Ishibashi, T. Sato, K. Hanada, M. Yokoyama, G. Yamauchi
1998 Journal of the Magnetics Society of Japan  
Abst1'8Ct--How the scales adhered to the boilers and pipes should be eliminated is becoming a problem of urgent importance. Contrary to this conventional method, new method of the removal and recovery of substances adhered to the pipe walls was attempted in this study turning attention to the Lorentz force generated by electromagnetic induction, equipping an magnet from the outer side of piping and controlling magnetic field a boiler operation. From fluorescent X-ray spectrographic analysis,
more » ... raphic analysis, X·ray diffraction, and magnetic measurement, the components of the substances adhered to the pipe walls ware identified as compounds of An, Ca, and Si in addition to the ferric substances with Fe304 as a major constituent. Experimental results show that more easily removed in the case that a magnet is equipped than in the case that magnet is unequipped. For example, total amount of removed scales by the magnet after one month has reached four times heavier than that without the magnet.
doi:10.3379/jmsjmag.22.s1_408 fatcat:ljeqq3hrfnhzrgtkq4itxjr7sy