Title:
DEVICE FOR PREVENTING ADHESION OF SCALE
Document Type and Number:
Japanese Patent JP2004267885
Kind Code:
A
Abstract:
To remove scale adhering on the inner wall of piping and to prevent the adhesion of scale on the inner wall of the piping by letting the optimum Lorentz force act on a liquid to be treated passing through the piping without requiring a laboratory testing and continuously changing the frequency of a current for exciting a solenoid coil.
At least two solenoid coils at an equal interval are arranged on the outer periphery of the piping through which the liquid to be treated passes and the frequency of an exciting signal for inducing an electromagnetic field in the solenoid coils is made synchronous to the flow velocity of the liquid to be treated passing through the piping.
Inventors:
HIROTA TERUO
YOSHIKAWA HIDEO
YOSHIKAWA HIDEO
Application Number:
JP2003061015A
Publication Date:
September 30, 2004
Filing Date:
March 07, 2003
Export Citation:
Assignee:
YANAGAWA ENGINEERING CO LTD
International Classes:
C02F5/00; C02F1/48; (IPC1-7): C02F1/48; C02F5/00
Attorney, Agent or Firm:
Shunsuke Nakao
Takashi Ito
Naoko Okura
Fumari Tamari
Takeyuki Suzuki
Shiro Isoda
Takashi Ito
Naoko Okura
Fumari Tamari
Takeyuki Suzuki
Shiro Isoda
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