METHOD FOR PROTECTING AGAINST CORROSION AND SCALE DEPOSIT AND FOR RESTORING TUBES OF HEAT-EXCHANGING EQUIPMENT AND DEVICE FOR CARRYING OUT SAID METHOD

Title:

METHOD FOR PROTECTING AGAINST CORROSION AND SCALE DEPOSIT AND FOR RESTORING TUBES OF HEAT-EXCHANGING EQUIPMENT AND DEVICE FOR CARRYING OUT SAID METHOD

Document Type and Number:

WIPO Patent Application WO/2003/014418

Kind Code:

A2

Abstract:

The inventive method for protecting from corrosion and scale deposit and restoring tubes of heat-exchanging equipment consists in applying a polymeric coating on the internal surface of tubes by gradually and rotationally moving an excessive volume of polymeric material therealong and in hardening said material. A polymeric compound having an at-rest viscosity ranging from 1000 to 1200 poises and a thixotropic viscosity reduction during the displacement thereof is used as a polymeric material. The inventive device for carrying out said method comprises a loading chamber (2), a connecting washer (12), a unit for progressively displacing the polymeric material provided with spaced rigid washers (4, 5, 6) fixed to a metallic rod (7), an elastic screw (8) having a conical shape whereby the conicity thereof ranges from 5 to 10° on the side which is opposite in relation to the connecting washer. Said elastic screw is arranged in such a way that it is enable to perform the gradual rotation, the rotation displacement being performed at a linear speed of 0.4-1.0 m/sec and the gradual displacement being performed at a speed of 0.1-0.49 m/sec.

Inventors:

GOLOVIN VLADIMIR ANATOLIEVICH (RU)
KUZNETS VITALIY TIMOFEEVICH (RU)
KUBLITSKIY KIRILL VALENTINOVIC (RU)
ILIN ALEXANDER BORISOVICH (RU)

Application Number:

PCT/RU2002/000373

Publication Date:

February 20, 2003

Filing Date:

August 06, 2002

Export Citation:

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Assignee:

OBSCHESTVO S OGRANICHENNOI OTV (RU)
GOLOVIN VLADIMIR ANATOLIEVICH (RU)
KUZNETS VITALIY TIMOFEEVICH (RU)
KUBLITSKIY KIRILL VALENTINOVIC (RU)
ILIN ALEXANDER BORISOVICH (RU)

International Classes:

B05C7/06; F28F19/04; B05D7/22; (IPC1-7): C23F/

Foreign References:

US3885521A	1975-05-27
FR2041644A5	1971-01-29
US4125089A	1978-11-14
SU263445A1
SU538745A1	1976-12-15
SU636013A1	1978-12-05
RU2065332C1	1996-08-20

Other References: