WO2016025373A1 - Procédé d'étanchéité d'extrémité d'ensemble de conduites isolées et chauffantes - Google Patents

Procédé d'étanchéité d'extrémité d'ensemble de conduites isolées et chauffantes Download PDF

Info

Publication number
WO2016025373A1
WO2016025373A1 PCT/US2015/044439 US2015044439W WO2016025373A1 WO 2016025373 A1 WO2016025373 A1 WO 2016025373A1 US 2015044439 W US2015044439 W US 2015044439W WO 2016025373 A1 WO2016025373 A1 WO 2016025373A1
Authority
WO
WIPO (PCT)
Prior art keywords
tracer
carrier
tubes
carrier pipe
pipe
Prior art date
Application number
PCT/US2015/044439
Other languages
English (en)
Inventor
Avin Chandru GIDWANI
Nixon Alex RAJ
Original Assignee
Perma-Pipe, Inc.
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 Perma-Pipe, Inc. filed Critical Perma-Pipe, Inc.
Publication of WO2016025373A1 publication Critical patent/WO2016025373A1/fr

Links

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
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • 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
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/30—Heating of pipes or pipe systems
    • F16L53/32—Heating of pipes or pipe systems using hot fluids
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
    • F16L59/18—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints
    • F16L59/20—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints for non-disconnectable joints

Definitions

  • Pe-in-Pipe insulation systems in which a steel outer casing is used to protect the insulation from deep water pressure have been used, and will continue to be used, to meet these purposes and needs.
  • high density polyethylene (HDPE) and other casing materials are used.
  • the fluid that flows through the carrier pipe needs to be heated to maintain proper flow within the pipe.
  • This can be accomplished with tracer tube(s) or heat tube(s) welded over the longitudinal length of the carrier pipe.
  • the tracer tube contains a heating element, such as an electrical heating element, and fiber optic temperature sensing cables.
  • the carrier pipe and tracer tube are then insulated and jacketed in a pre -insulated piping assembly.
  • the free ends of the carrier pipe and tracer tube assembly are not insulated or jacketed as part of the pre-insulated piping assembly so as to allow the carrier pipes and tubes to be joined in the field where they are to be placed and used.
  • the pipe assembly end seal process of the present invention provides sealing of the insulation with tracer tube(s) protruding to provide improved integrity of individual pipe joints against moisture intrusion that would be detrimental to the insulation system.
  • FIG. 1 is a perspective view of a carrier pipe, adhesive material and tracer tube made in accordance with an embodiment of the present invention
  • FIG. 2 is a perspective view of an insulated pipe assembly made in accordance with an embodiment of the present invention
  • a suitable expoxy is of the type sold under the trade name Belzona 1111 (Super Metal) by Belzona Inc. of Miami, FL but other adhesives of similar performance can be used.
  • the mounds are preferably approximately of a width of 100 millimeters, but can be of any suitable size.
  • the first and second carrier pipes 10 and 40 and first and second tracer tubes 16 and 44 are encased in an insulating material 50 (FIG. 2).
  • the insulating material 50 can be any suitable insulating material such as polyurethane or polyisocyanate foam or glass syntactic polyurethane foam (GSPU), and is applied using current techniques.
  • the insulating material is typically applied as per thickness and density required, with a thickness of between one and four inches, and a density of 90 to 100 kilograms per cubic meter being typical.
  • the pipe assemblies 1,2 are then jacketed using currently available techniques such as wind down end seal as shown in FIG. 8.
  • the jacketing 80 is preferably a high density polyethylene (HDPE) or fiber optic reinforces plastics (FRP) and is applied in a layer of approximately four millimeters, but can be any suitable jacketing material and thickness.
  • HDPE high density polyethylene
  • FRP fiber optic reinforces plastics

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

La présente invention concerne un procédé d'étanchéité d'extrémité d'ensembles à tube traceur et à conduite de transport, consistant à utiliser une première conduite de transport et à appliquer, à des intervalles longitudinaux sélectionnés, un matériau adhésif le long de la surface extérieure de la première conduite de transport. Le procédé consiste également à fixer un premier tube traceur longitudinalement à la première conduite de transport de sorte que le premier tube traceur vienne en contact avec le matériau adhésif sur la première conduite de transport. Le procédé consiste à revêtir la première conduite de transport et le premier tube traceur d'un matériau isolant, tout en laissant une partie des extrémités libres de la première conduite de transport et du premier tube traceur exempte de matériau isolant, et à envelopper un revêtement polymère autour de la première conduite de transport et du premier tube traceur au niveau de leurs extrémités libres non isolées et à gainer ensuite la première conduite de transport et le premier tube traceur revêtus d'isolant.
PCT/US2015/044439 2014-08-12 2015-08-10 Procédé d'étanchéité d'extrémité d'ensemble de conduites isolées et chauffantes WO2016025373A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462036352P 2014-08-12 2014-08-12
US62/036,352 2014-08-12

Publications (1)

Publication Number Publication Date
WO2016025373A1 true WO2016025373A1 (fr) 2016-02-18

Family

ID=55304524

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2015/044439 WO2016025373A1 (fr) 2014-08-12 2015-08-10 Procédé d'étanchéité d'extrémité d'ensemble de conduites isolées et chauffantes

Country Status (1)

Country Link
WO (1) WO2016025373A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2744140C1 (ru) * 2020-01-22 2021-03-03 Федеральное государственное бюджетное образовательное учреждение высшего образования Балтийский государственный технический университет "ВОЕНМЕХ" им. Д.Ф. Устинова (БГТУ "ВОЕНМЕХ" Способ теплогидроизоляции стыка предварительно изолированных труб

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6316751B1 (en) * 1998-04-21 2001-11-13 Fusion Weld Corporation Apparatus for forming field joints on plastic coated pipe
WO2001092776A1 (fr) * 2000-05-29 2001-12-06 Powerpipe Systems Ab Conduite et son procede de production
US20020163182A1 (en) * 2001-03-01 2002-11-07 Kirkegaard Kim Schultz Method of joining prefabricated thermal insulated pipes
US20050067403A1 (en) * 1998-07-15 2005-03-31 Thermon Manufacturing Company Thermally-conductive, electrically non-conductive heat transfer material and articles made thereof
US20060279078A1 (en) * 2004-03-09 2006-12-14 Schlumberger Technology Corporation Joining Tubular Members
US20120271403A1 (en) * 2011-04-21 2012-10-25 Aga Medical Corporation Tubular structure and method for making the same
US20130285366A1 (en) * 2010-10-22 2013-10-31 Shawcor Ltd. Non-crosslinked shrinkable casing member for forming a connection between tubular sections and method of forming said connection by induction fusion

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6316751B1 (en) * 1998-04-21 2001-11-13 Fusion Weld Corporation Apparatus for forming field joints on plastic coated pipe
US20050067403A1 (en) * 1998-07-15 2005-03-31 Thermon Manufacturing Company Thermally-conductive, electrically non-conductive heat transfer material and articles made thereof
WO2001092776A1 (fr) * 2000-05-29 2001-12-06 Powerpipe Systems Ab Conduite et son procede de production
US20020163182A1 (en) * 2001-03-01 2002-11-07 Kirkegaard Kim Schultz Method of joining prefabricated thermal insulated pipes
US20060279078A1 (en) * 2004-03-09 2006-12-14 Schlumberger Technology Corporation Joining Tubular Members
US20130285366A1 (en) * 2010-10-22 2013-10-31 Shawcor Ltd. Non-crosslinked shrinkable casing member for forming a connection between tubular sections and method of forming said connection by induction fusion
US20120271403A1 (en) * 2011-04-21 2012-10-25 Aga Medical Corporation Tubular structure and method for making the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2744140C1 (ru) * 2020-01-22 2021-03-03 Федеральное государственное бюджетное образовательное учреждение высшего образования Балтийский государственный технический университет "ВОЕНМЕХ" им. Д.Ф. Устинова (БГТУ "ВОЕНМЕХ" Способ теплогидроизоляции стыка предварительно изолированных труб

Similar Documents

Publication Publication Date Title
US10577871B2 (en) Subsea pipe-in-pipe structures
US9863571B2 (en) Apparatus, systems and methods for thermal management of subsea pipeline
US6901968B2 (en) Fluid conduit
CN110582665B (zh) 装配和阴极保护
EP3259517B1 (fr) Structures sous-marines de conduites à enveloppes multiples
JPS60159496A (ja) 配管用断熱装置及びその配設方法
US20190242518A1 (en) System and method for protecting one or more pipes against corrosion and corrosion-protected pipe
SA517390362B1 (ar) توصيل مقاطع أنبوبية مبطَّنة
US9145999B2 (en) Shear increasing system
WO2016025373A1 (fr) Procédé d'étanchéité d'extrémité d'ensemble de conduites isolées et chauffantes
US9341778B2 (en) Fiber optic splice protector for harsh environments
CA2833056C (fr) Protecteur d'epissure de fibre optique pour environnements rudes
WO2016078666A1 (fr) Tuyau flexible non collé et procédé de régulation de la température de la surface d'un tuyau flexible non collé
GB2378916A (en) A heatable conduit

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15831437

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15831437

Country of ref document: EP

Kind code of ref document: A1