Descaling method and descaling apparatus
AssigneesRoyal Kiki Co., Ltd., Measurement Technical Laboratory Co., LTd.
InventorsKiyoshi Tsuboi, Hajime Yuasa, Tsuneo Sugawara
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Abstract
This invention is to provide a method of efficiently removing scales adhered to a pipe and the like. A descaled object with scales deposited thereto is covered with a solvent at least on its scaled surface. A magnetic field is generated by supply a frequency signal to a coil, and the descaled object and the solvent are disposed within this magnetic field. Signals having frequencies that are set beforehand at every scale are supplied to the coils as the frequency signals. The frequencies of the frequency signals supplied to the coils and which are set beforehand are frequencies required when an electric current flows through the solvent which covers the scales.
Claims21
A method of descaling a scaled surface of an object, the method comprising the steps of:
- covering at least the scaled surface of the object with a solvent;
- forming a magnetic field by supplying a frequency signal to a coil, wherein the frequency signal includes a predetermined frequency corresponding to a specific type of scale on the scaled surface of the object, and wherein the frequency signal is supplied to the coil to selectively remove said specific type of scaling;
- and
- positioning said object and said solvent within said magnetic field.
An apparatus for descaling a scaled surface of an object, the scaled surface being covered in solvent, the apparatus comprising:
- a magnetic field generating unit configured to generate a magnetic field that extends through the object and solvent, by supplying a frequency signal to a coil;
- and
- a frequency signal generating unit configured to generate the frequency signal, wherein said frequency signal includes a predetermined frequency corresponding to a specific type of scale on the scaled surface of the object,
- and wherein the magnetic field generating unit is configured to supply said frequency signal to said coil to selectively remove said specific type of scaling.
Dependencies are inferred from the claim text.