CHUIKO'S PROCESS OF ANTIRUST PROTECTION OF PIPE WELDS WITH INNER PROTECTIVE COATING Russian patent published in 2015 - IPC F16L58/02 F16L13/02

Abstract RU 2552627 C2

FIELD: process engineering.

SUBSTANCE: invention relates to construction of pipelines and can be used for antirust protection of pipe weld butts with inner protective coating. This process comprises fitting of steel protective sleeve inside pipes to be jointed to make circular spaces and clearances between sleeve outer surface and inner surface of pipe weld with adjoining protective coating sections and sealing of sleeve ends over circular spaces. After sealing, circular space is filled with liquid sealant. Prior to fitting of said sleeve in, it is elastically stretched to make sleeve shape and ID comply with pipe shape and bore diameter in butt area with allowance for mounting gap there between and inner protective coating depth.

EFFECT: higher reliability, longer life.

8 cl, 11 dwg

Similar patents RU2552627C2

Title	Year	Author	Number
CHUIKO METHOD FOR INTERNAL MONOLITHIC INSULATION OF WELDED PIPE JOINT (OPTIONS)	2017	Chujko Aleksandr Georgievich Chujko Anastasiya Aleksandrovna	RU2667856C1
CHUYKO DEVICE FOR INTERNAL CAST-IN-SITU ISOLATION OF WELDED JOINT OF A PIPELINE (EMBODIMENTS)	2017	Chujko Aleksandr Georgievich Chujko Anastasiya Aleksandrovna	RU2677913C1
DEVICE FOR ROBOTISED INTERNAL INSULATION OF PIPELINE WELDED JOINT	2019	Chujko Aleksandr Georgievich Chujko Anastasiya Aleksandrovna	RU2716789C1
DEVICE FOR INTERNAL INSULATION OF PIPELINE WELDED JOINT	2019	Chujko Aleksandr Georgievich Chujko Anastasiya Aleksandrovna	RU2693564C1
METHOD OF INTERNAL ANTI-CORROSION PROTECTION OF PIPE WELDED JOINT AREA AND DEVICE FOR REALIZATION OF THIS METHOD	2002	Zhdanov Mikhail Georgievich Morozov G.M. Trofimov I.E. Batov P.A.	RU2218513C1
METHOD BY PROTASOV V.N. FOR ANTI-CORROSION PROTECTION OF BELL AND BELL	2015	Protasov Viktor Nikolaevich Shtyrev Oleg Olegovich	RU2584016C1
METHOD OF CORROSION PROTECTION OF INTERNAL SURFACES OF WELDED JOINTS OF PIPES	1997	Protasov V.N. Shtyrev O.V.	RU2122150C1
METHOD OF AND DEVICE FOR INTERNAL CORROSION PROTECTION OF PIPE WELD ZONE	2001	Zhdanov Mikhail Georgievich Morozov G.M.	RU2218510C2
METHOD OF AND DEVICE FOR INTERNAL CORROSION PROTECTION OF PIPE WELD ZONE	2002	Zhdanov Mikhail Georgievich Morozov G.M. Trofimov I.E. Batov P.A.	RU2218512C2
METHOD AND DEVICE FOR CORROSION PROTECTION OF INTERNAL PIPE WELD JOINT	2002	Zhdanov Mikhail Georgievich Morozov G.M. Trofimov I.E. Batov P.A.	RU2235937C2

RU 2 552 627 C2

Authors

Chujko Aleksandr Georgievich

Chujko Anastasija Aleksandrovna

Dates

2015-06-10—Published

2013-08-13—Filed