METHOD OF CONNECTING PIPES HAVING INNER COAT

FIELD: pipe line transport; erection of pipe lines provided with inner corrosion-resistant coat. SUBSTANCE: inner diameter of ends of pipes is calibrated and extended prior to application of coat and inner protective bush is placed in joint area; said bush is provided with corrosion-resistant coat a...

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Bibliographic Details
Main Authors IBRAGIMOV N.G, DAUTOV F.I, DAUTOV D.F, FADEEV V.G, GAREEV R.M
Format Patent
LanguageEnglish
Russian
Published 10.04.2004
Edition7
Subjects
BLASTING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
JOINTS OR FITTINGS FOR PIPES
LIGHTING
MEANS FOR THERMAL INSULATION IN GENERAL
MECHANICAL ENGINEERING
PIPES
SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:FIELD: pipe line transport; erection of pipe lines provided with inner corrosion-resistant coat. SUBSTANCE: inner diameter of ends of pipes is calibrated and extended prior to application of coat and inner protective bush is placed in joint area; said bush is provided with corrosion-resistant coat and sealing members on outer surface; in center of this bush there is ring made from heat-insulating material. Sealing members are placed in zones of change of inner diameter of pipe ends; outer surface of sealing members corresponds to configuration of inner surface of pipes in said zones and longitudinal mounting size of bush exceeds respective size of extended ends of pipes. Sealing members are made in form of radial circular projections of bush with rings made from elasto-flexible material. EFFECT: enhanced reliability. 6 cl, 4 dwg
Bibliography:Application Number: RU20020117833