WAVE DEVICE TO REMOVE SALTS FROM SURFACES OF OIL AND GAS HEAT EXCHANGE EQUIPMENT Russian patent published in 2013 - IPC F28G7/00 

Abstract RU 2474781 C1

FIELD: electricity.

SUBSTANCE: wave device comprises a supply unit, arranged in accordance with the circuit of a full-wave rectifier, a power capacitor connected at its outlet and a separating capacitor connected in parallel with its inlet. The device also comprises a thyristor switching unit includes two thyristors, a control unit, including serially connected a step-down transformer, a pulse frequency divider, a differentiating chain, a pulse duration shaper, and also a driving oscillator, a trigger. The first and second differentiating cascades are connected to appropriate outlets of the trigger. The first and second cascades of matches are connected to outputs of the appropriate differentiating cascades. The first and second power amplifiers are connected with outlets of appropriate cascades of matches, the second inlets of which are connected with the output of the pulse duration shaper. Outlets of power amplifiers are connected with appropriate control inlets of thyristors. The device also comprises switching capacitors, several magnetostrictive converters, every of which has a laminated magnetostrictive package with two cumulative excitation windings and a steel waveguide. A magnetostrictive package is soldered to one of ends of a waveguide, and at the second end there are slants made for welding to heat exchange equipment. At the same time the power input of the first thyristor is connected with one of linings of the power capacitor, and its outlet is connected with inlets of the first excitation windings. Outlets of the first excitation windings are connected with outlets of the second excitation windings and via appropriate switching capacitors are connected to the second lining of the power capacitor and the power outlet of the second thyristor. The power outlet of the second thyristor is connected with inlets of the second excitation windings. The control unit is equipped with the second driving oscillator and a switchboard, to the inlet of which the outlets of driving oscillators are connected, and a trigger is connected to its outlet. At the same time waveguides are made as split from two parts, one of which has a flat end and a cylindrical shape at the side of this end with thread on its surface, and the second part is made in the form of an appropriate threaded matching bushing with a flat bottom. Matching bushings have different length, and between waveguide parts there is a gasket of a material with a heat expansion ratio exceeding the heat expansion ratio of a waveguide material. Slants for welding are made at the end of the threaded matching bushing.

EFFECT: increased efficiency of equipment cleaning.

1 dwg

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RU 2 474 781 C1

Authors

Dubrovskij Andrej Nikolaevich

Litvinov Evgenij Vasil'Evich

Pirogov Vsevolod Anatol'Evich

Dates

2013-02-10Published

2011-10-05Filed