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An apparatus and method is disclosed including first and second housing halves which are welded together to attach the apparatus to a pup joint installed in an oil casing. The housing includes a cylindrical portion and first and second frustoconical portions at opposite axial ends thereof. Axially e

An apparatus and method is disclosed including first and second housing halves which are welded together to attach the apparatus to a pup joint installed in an oil casing. The housing includes a cylindrical portion and first and second frustoconical portions at opposite axial ends thereof. Axially extending L-shaped spacers are secured to the inside portion and include longitudinal edges which abut with the outer surface of the pipe. Series of axially spaced, first and right parallelepiped shaped magnets are sandwiched between the inside portion of the cylindrical portion and the outer surface of the pipe, with the poles of the first and magnets being reversed relative to the pipe. The housing halves are welded along their longitudinal free edges after being clamped together by a clamping band with sufficient force to secure the apparatus to the pipe generally by frictional forces and being free of the attachment to the pipe.

대표청구항 ▼

Apparatus for magnetically treating flowing liquids through a pipe, with the pipe having an outer surface having a circular cross section of a diameter, comprising, in combination: a housing including a cylindrical portion, with the cylindrical portion having inside and outside surfaces having circu

Apparatus for magnetically treating flowing liquids through a pipe, with the pipe having an outer surface having a circular cross section of a diameter, comprising, in combination: a housing including a cylindrical portion, with the cylindrical portion having inside and outside surfaces having circular cross sections of diameters larger than the diameter of the outer surface of the pipe, with the housing further including a plurality of parallel spacers secured at circumferentially spaced locations to the inside surface of the cylindrical portion and having axial lengths generally equal to the axial length of the cylindrical portion, with the spacers having free edges which terminate in a cylinder having a diameter generally equal to the diameter of the outer surface of the pipe; and means for producing a magnetic field for a liquid flowing through the pipe comprising, in combination: a series of first magnets sandwiched between the inside surface of the cylindrical portion and the outer surface of the pipe, with the first magnets being circumferentially spaced from each other and from the spacers; and a series of second magnets sandwiched between the inside surface of the cylindrical portion and the outer surface of the pipe and axially spaced from the first magnets, with the second magnets being circumferentially spaced from each other and from the spacers, with the first and second magnets each having north and south poles, with the first magnets having the north poles located radially outward of the south poles and the second magnets having the south poles located radially outward of the north poles. Method for magnetically treating flowing liquids comprising the steps of: providing a pipe including an outer surface having a circular cross section of a diameter; providing a magnetic apparatus producing a magnetic field and including a housing having a cylindrical portion, with the cylindrical portion including an outside surface having generally circular cross sections of a diameter larger than the diameter of the pipe, with the outside surface of the cylindrical portion of the housing having a radial size larger than the remaining portions of the housing, with the magnetic apparatus including the housing being divided into first and second longitudinal portions which are radially separable from the pipe; attaching the first and second longitudinal portions together to secure the magnetic apparatus to the pipe generally by frictional forces between the first and second longitudinal portions and the pipe and being free of attachment of the first and second longitudinal portions to the pipe; and flowing the liquid through the pipe after the magnetic apparatus is secured to the pipe characterized in that the attaching step comprises the steps of: clamping the first and second longitudinal portions on the pipe with sufficient force to secure the magnetic apparatus to the pipe generally by frictional forces between the first and second longitudinal portions and the pipe; attaching the first and second longitudinal portions together generally without exceeding the diameter of the cylindrical portion; and removing the clamping force from the first and second longitudinal portions after the first and second longitudinal portions are attached together.