SU778413A1 - Method of repairing corrosion-resistant coating of outer surface of operating main pipeline - Google Patents

Method of repairing corrosion-resistant coating of outer surface of operating main pipeline Download PDF

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Publication number
SU778413A1
SU778413A1 SU772452062A SU2452062A SU778413A1 SU 778413 A1 SU778413 A1 SU 778413A1 SU 772452062 A SU772452062 A SU 772452062A SU 2452062 A SU2452062 A SU 2452062A SU 778413 A1 SU778413 A1 SU 778413A1
Authority
SU
USSR - Soviet Union
Prior art keywords
coating
mastic
old
primer
main pipeline
Prior art date
Application number
SU772452062A
Other languages
Russian (ru)
Inventor
М.К. Рамеев
К.Е. Ращепкин
М.С. Новопокровский
Ф.Е. Васильев
Я.А. Нисенбаум
Original Assignee
Всесоюзный Научно-Исследовательский Институт По Сбору,Подготовке И Транспорту Нефти И Нефтепродуктов
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Всесоюзный Научно-Исследовательский Институт По Сбору,Подготовке И Транспорту Нефти И Нефтепродуктов filed Critical Всесоюзный Научно-Исследовательский Институт По Сбору,Подготовке И Транспорту Нефти И Нефтепродуктов
Priority to SU772452062A priority Critical patent/SU778413A1/en
Priority to DE19782806722 priority patent/DE2806722C3/en
Priority to DD20377778A priority patent/DD134844A1/en
Priority to FR7805090A priority patent/FR2381960A1/en
Priority to CA297,534A priority patent/CA1114243A/en
Priority to JP2034678A priority patent/JPS53127541A/en
Application granted granted Critical
Publication of SU778413A1 publication Critical patent/SU778413A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/12—Coatings characterised by the materials used by tar or bitumen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Способ ремонта антикоррозионного , покрыти  наружной поверхности действующего магистрального трубопровода , включающий удаление старой изол ции, нанесение грунтовки и нового изол ционного покрыти  с применением полимерных лент, отличающийс  тем, что, с целью сокращени  времени и трудоемкости ремонта и повьшени  качества покрыти , удал ют только плохоадгезионную часть старого мастичного покры§ ти , нанос т слой грунтовки и выравнивающий слой кле щей мастики, родст (Л венные по составу остаткам старого . мастичного покрыти , и нанос т по- лимерную ленту при температуре ниже ее диструкции. 00 4:The method of repairing the anticorrosive coating of the outer surface of the existing trunk pipeline, including removing the old insulation, applying a primer and a new insulation coating using polymer tapes, characterized in that, in order to reduce the time and complexity of repair and improve the quality of the coating, only poor adhesion is removed part of the old mastic coating, put a layer of primer and a leveling layer of adhesive mastic, related (composition of the remains of the old. mastic coating, and nan polymer tape is left at a temperature below its distruction 00 4:

Description

1 Изобретение относитс  к способам ремонта антикоррозионного покрыти  наружной поверхности действующего магистрального трубопровода. Известен способ изол ции наружной поверхности трубопровода липкими полимерными изол ционными лентами , при котором трубопровод предварительно очищают до серого металлического блесЛа, Занос т клеевую грунтовку,, поверх которой нанос т 1т- лимерную изол ционнзпо ленту с зар нее нанесенным на нее липким слоем. Недостатком известного способа применительно- к ремонту покрыти   вл етс  то, что нанесение полимерной пленки, несущей на себе заранее нанесенный тонкий слой кле , толщина которого не превьшает 0,1-0,2 мм, .приводит к образованию шатровых пустот, заполненных воздухом в местах неровностей наружной поверхности трубопровода. Кроме того, нанесение полимерной пленки по тонкому слою .заранее нанесенного сло  кле , состо щего из клеев на основе каучуков или перхлорвйниловых смол, не обеспечивает длительного срока службы покрыти  из-за быстрой потери адгезии 1 j. . /Целью изобретени   вл етс  повышение качества антикоррозионного покрыти  наружной поверхности трубопровода , сокращени  времени и затрат на ремонт. Достигаетс  это тем, что при очистке с наружной поверхности трубопровода удал ют только плохоадгезионную часть старого мастичного покрыти , нанос т слой адгезионной грунтовки. Затем нанос т выравн.ивающий наружную поверхность трубопровода и заполн ющий все его неровности слой изол ционной клеющей мастики, состо щей из битума, сол рового, масла (2-10%) и при необходимости наполнителей , придающих покрытию требуемые прочностные и температурные характеристики в зависимости от условий эксплуатации покрыти  (0-20%). Нанесение кле щей мастики производ т при температуре, исключающей деструкцию лолимёрной пленки, которую нанос т поверх кле щей мастики . При применении поливинилхлоридной пленки изол ционную кле щую мастику нанос т в интервал температур lOO-ISO C.. Предлагаемый способ позволит обеспечить антикоррозионную защиту наружной поверхности трубопровода в течение всего оставшегос  срока его службы.1 The invention relates to methods for repairing an anti-corrosion coating on the exterior surface of an existing trunk pipeline. A known method of insulating the outer surface of a pipeline with sticky polymeric insulating tapes, in which the pipeline is preliminarily cleaned to a gray metallic glitter, Adds an adhesive primer over which a 1-dimensional insulating tape with an adhesive layer applied on it is applied. The disadvantage of the known method for repairing the coating is that the application of a polymer film that carries a pre-applied thin layer of glue, the thickness of which does not exceed 0.1-0.2 mm, leads to the formation of tent voids filled with air in places irregularities of the outer surface of the pipeline. In addition, the application of a polymer film over a thin layer of a previously applied layer of glue consisting of rubber-based adhesives or perchlore resins does not ensure a long service life of the coating due to the rapid loss of adhesion 1 j. . The aim of the invention is to improve the quality of the anti-corrosion coating on the outer surface of the pipeline, reducing the time and cost of repairs. This is achieved by the fact that during cleaning only the poorly adhesive part of the old mastic coating is removed from the outer surface of the pipeline, a layer of adhesive primer is applied. Then, a layer of insulating adhesive mastic consisting of bitumen, salt, oil (2-10%) and, if necessary, fillers, which give the coating the required strength and temperature characteristics, filling the unevenness of the pipeline and filling all its irregularities, is applied. on the operating conditions of the coating (0-20%). The application of the adhesive mastic is carried out at a temperature that excludes the destruction of the polymer film, which is applied over the adhesive mastic. When using a polyvinyl chloride film, an insulating adhesive mastic is applied in the temperature range lOO-ISO C. The proposed method will provide anticorrosive protection to the outer surface of the pipeline during its remaining service life.

Claims (1)

Способ ремонта антикоррозионного. покрытия наружной поверхности действующего магистрального трубопровода, включающий удаление старой изоляции, нанесение грунтовки й нового изоляционного покрытия с применением полимерных лент, о т л ичающийся тем, что, с целью сокращения времени и трудоемкости ремонта и повышения качества покрытия, удаляют только плохоадгезионную часть старого мастичного покрытия, наносят слой грунтовки и вырав- <g нивающий слой клеящей мастики, родственные по составу остаткам старого мастичного покрытия, и наносят по; лимерную ленту при температуре ниже ее диструкции.The way to repair anti-corrosion. coating the outer surface of the existing main pipeline, including removing old insulation, applying a primer and a new insulation coating using polymer tapes, which means that in order to reduce the time and laboriousness of repairs and improve the quality of coating, only the poorly adhesive part of the old mastic coating is removed apply a primer layer and a leveling layer of adhesive mastic, similar in composition to the remnants of the old mastic coating, and apply on; a measuring tape at a temperature below its destruction.
SU772452062A 1977-02-23 1977-02-23 Method of repairing corrosion-resistant coating of outer surface of operating main pipeline SU778413A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SU772452062A SU778413A1 (en) 1977-02-23 1977-02-23 Method of repairing corrosion-resistant coating of outer surface of operating main pipeline
DE19782806722 DE2806722C3 (en) 1977-02-23 1978-02-17 Method of applying mastic anti-rust paints to parts of the exterior surface of operational pipelines ''
DD20377778A DD134844A1 (en) 1977-02-23 1978-02-21 REPAIR PROCEDURE OF MASTIX STAINLESS STEEL PURPOSES OF MAIN PIPES
FR7805090A FR2381960A1 (en) 1977-02-23 1978-02-22 Repairing antirust mastic paint of pipelines whilst in use - by locally removing all coatings, applying heated new mastics to even out roughness and covering with film
CA297,534A CA1114243A (en) 1977-02-23 1978-02-22 Method of repairing corrosion resistant paste type coating of operating pipeline exterior surface
JP2034678A JPS53127541A (en) 1977-02-23 1978-02-23 Repairing of corrosion resistant paste painting for pipe arrangement system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772452062A SU778413A1 (en) 1977-02-23 1977-02-23 Method of repairing corrosion-resistant coating of outer surface of operating main pipeline

Publications (1)

Publication Number Publication Date
SU778413A1 true SU778413A1 (en) 1985-08-23

Family

ID=20695390

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772452062A SU778413A1 (en) 1977-02-23 1977-02-23 Method of repairing corrosion-resistant coating of outer surface of operating main pipeline

Country Status (6)

Country Link
JP (1) JPS53127541A (en)
CA (1) CA1114243A (en)
DD (1) DD134844A1 (en)
DE (1) DE2806722C3 (en)
FR (1) FR2381960A1 (en)
SU (1) SU778413A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR820372A (en) * 1936-04-09 1937-11-09 Koninklijke Hoogovens En Staal Pipe having a coating layer on the outside and inside and method for its manufacture
FR1002250A (en) * 1946-08-23 1952-03-04 Pompes Noe L Pipe with coating, processes and tools for installing this coating
US2721823A (en) * 1953-02-24 1955-10-25 John R Hopkins Method of and product for repairing protective coated pipes
DE1219746B (en) * 1960-08-10 1966-06-23 Denso Chemie Ges Mit Beschraen Process for re-insulating damaged bitumen deposits on pipes, containers, cables or the like.
US3258032A (en) * 1961-07-14 1966-06-28 United States Steel Corp Coating

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1. Инструкци по антикоррозионной защите наружной поверхности металлических трубопроводов полимерными липкими лентами. БСН-2-31-71, МингазПром, ВНИИСТ, М., 1972. *

Also Published As

Publication number Publication date
DE2806722C3 (en) 1981-01-08
DD134844A1 (en) 1979-03-28
JPS53127541A (en) 1978-11-07
FR2381960A1 (en) 1978-09-22
DE2806722A1 (en) 1978-08-24
DE2806722B2 (en) 1980-04-24
CA1114243A (en) 1981-12-15
FR2381960B1 (en) 1982-10-15

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