WO2015014332A2 - Procédé de fabrication de tubes gainés - Google Patents

Procédé de fabrication de tubes gainés Download PDF

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Publication number
WO2015014332A2
WO2015014332A2 PCT/DE2014/000276 DE2014000276W WO2015014332A2 WO 2015014332 A2 WO2015014332 A2 WO 2015014332A2 DE 2014000276 W DE2014000276 W DE 2014000276W WO 2015014332 A2 WO2015014332 A2 WO 2015014332A2
Authority
WO
WIPO (PCT)
Prior art keywords
metallic
jacket
plastic
tube
surrounded
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/DE2014/000276
Other languages
German (de)
English (en)
Other versions
WO2015014332A3 (fr
Inventor
Peter DANIEWSKI
Michael Volland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cunova GmbH
Original Assignee
KME Germany GmbH and Co KG
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 KME Germany GmbH and Co KG filed Critical KME Germany GmbH and Co KG
Publication of WO2015014332A2 publication Critical patent/WO2015014332A2/fr
Publication of WO2015014332A3 publication Critical patent/WO2015014332A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics
    • F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
    • F16L58/109—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe the coating being an extruded layer
    • 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
    • F16L9/00—Rigid pipes
    • F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
    • F16L9/19—Multi-channel pipes or pipe assemblies

Definitions

  • the invention relates to a method for producing jacketing pipes according to the features of patent claim 1.
  • the UNS number (Unified Numbering System for metals and alloys) is a system in which each metal is determined by a letter and five numbers. It is a system through which no special properties or exact compositions with defined chemical limits can be derived.
  • the quality UNS S31254 stands for austenitic stainless steels of type 6 Mo. The material is assigned the material number EN 1.4547. It is an austenitic stainless steel developed for use in seawater and other media containing chloride. The steel has excellent resistance to pitting and crevice corrosion, high resistance to general corrosion, high resistance to stress corrosion cracking, greater strength than conventional austenitic
  • the Rp02 limit is at least 310 MPa.
  • the tensile strength is at least 675 MPa at an elongation A> 35%.
  • the invention is therefore based on the object of a method for producing a pipe, with which it is possible using at least one metallic tube of austenitic stainless steel quality UNS S31254 greater lengths of over 10, in particular over 12 m, in particular greater than 100 m to bridge.
  • the inventive method provides to use said austenitic steel metallic tubes of quality UNS S31254 according to the standard NORSOK M-630 Rev. 4 September 201 1.
  • the pipes are manufactured and tested according to the very strict standard NORSOK M-650 Rev. 4, September 201 1.
  • the special here is that the tubes are made in coils and thereby uniform material lengths greater than 3.5 to 10 m, in particular greater than 12 m and even more particularly greater than 100 m arise.
  • the individual lengths of the tubes can be connected by orbital welding to lengths up to 10,000 m.
  • the pipes used meet the stringent requirements of the US Standard ASTM G42 Corrosion Test Method A at a test temperature of 50 ° C for 24 hours in that after heating for 5 minutes at 60 ° C, a solution of 20% HNO3 + 5% HF at 20x magnification no pitting is visible and the weight loss is less than 4g / m2 is.
  • the tube is indirectly or directly surrounded by at least one seamless extruded outer sheath of plastic.
  • the seamless extruded plastic outer sheath is in direct contact with the at least one metallic tube.
  • Indirect means in this context that between the outer sheath, made of plastic and the metallic tube more layers or shells are processed.
  • Said tubes have dimensions of 8 mm x 1 mm to 25 mm x 2.5 mm (diameter x wall thickness).
  • the limits of the method are predetermined by the transportability of the wiring harness. Lengths over 10,000 m are barely transportable on conventional means of transport. However, the method basically allows the production of larger lengths, since it is a continuous manufacturing process. Only the welding of the individual lengths by an orbital welding leads to a temporary standstill of the tube in the range of a manufacturing stage, but this has no effect on the fact that in other stages of production, a seamless extruded outer sheath made of plastic can continue to be applied. By appropriate buffers in the production line, this is possible, so that it is a total and a continuous manufacturing process with consistent quality.
  • the extraordinarily long achievable lengths make it possible for the first time in chloride-containing environments, in particular in the presence of seawater, to use the particularly suitable material at longer distances.
  • the so-called 6Mo alloy offers excellent resistance to stress corrosion cracking and is thus suitable for the cold forming of pipes.
  • Typical applications are in the maritime area but also in measurement and control technology, for example, when conducting and measuring liquids containing chloride.
  • the steel grade can be used in particular for other halide-containing media as salt water, namely hydrochloric acid or sulfuric acid.
  • the higher molybdenum content in combination with chromium and nitrogen provide the desired protection against pitting corrosion and crevice corrosion.
  • the plastic outer sheath additionally protects the pipes from outside from the ingress of halide-containing media, in particular from the ingress of seawater.
  • a plurality of the metallic tubes are combined with one another to form a tube bundle.
  • the individual tubes are stranded together, that is, twisted together.
  • the tube bundle is additionally roped to give it extra strength.
  • the so stranded and umseilte tube bundle is surrounded in total with the seamless extruded outer sheath made of plastic.
  • the individual pipes are numbered consecutively or marked in color.
  • the colored marking may preferably be formed on a plurality of tubes by a seamless extruded plastic sheath which is applied to the individual tubes before the tubes are stranded.
  • a coloring is also possible by a sheath of other materials or by printing.
  • the individual sheathing of the pipes additionally protects the pipes if the outer sheath that surrounds the entire pipe bundle is damaged should be and a halide-containing medium such as seawater penetrates the outer shell and reaches the spaces between the individual tubes of the tube bundle.
  • the said tubes or tube bundles may be subjected to strong temperature fluctuations due to their great length in their course. It is therefore possible to heat the tube bundle.
  • at least one electrical heating conductor can run parallel to the at least one tube, or else at least one further tube can be embedded in the tube bundle for heating.
  • This further tube can be made of the same material as all other tubes of the tube bundle. It is also conceivable to use for this at least one further tube a tube made of a plastic, which is embedded in the seamlessly extruded outer shell. This tube can be acted upon with a tempered, non-aggressive medium, so that it is not absolutely necessary to use the very high-quality material for such, intended for heating tube.
  • PFA Perfluoralkoxylalkan
  • PTFE polytetrafluoroethylene
  • an electrical heating conductor is guided parallel to the at least one tube, wherein the at least one tube and the heating conductor are rerouted by a first metallic sheath.
  • This metallic sheath serves as equipotential bonding.
  • outside of the first metallic sheath be arranged as a potential equalization conductor serving wire. This is in particular a tinned copper strand.
  • the equipotential bonding conductor is rerouted together with the first metallic jacket by a second metallic jacket, so that all components can be jointly or indirectly surrounded by the seamlessly extruded plastic outer jacket.
  • the first metallic shell is wound with a pitch around the at least one metallic tube, which is so large that the at least one metallic tube is completely covered.
  • the first metallic sheath is an aluminum strip that is helically wound with a pitch that is so great that the width of the aluminum strip simultaneously remains as a distance between two longitudinal loops. At a width of e.g. 30 mm remains between two successive wraps in the longitudinal direction accordingly a clearance of 30 mm.
  • the potential equalization conductor is pressed by the winding with the second metallic shell on the one hand directly against the tube and on the other hand against the inner metallic shell against the first metallic shell, so that any potential differences even in very small areas of e.g. 30 mm directly be compensated.
  • Temperable tube bundles are usually used where there is a risk of icing. So that the heat introduced is not released under high losses to the environment, it is provided in an advantageous development that a thermally effective insulating jacket surrounds the tube bundle in question. It can be provided at least one layer of an insulating material, in particular a plurality of layers of insulating materials are provided. As the material, a glass fiber-containing material or a material consisting of glass fibers can be used. The insulating jacket can be performed one or more layers around the tube bundle before the seamless extruded outer sheath of plastic is applied in one or more layers. The invention will be explained in more detail with reference to the embodiments illustrated in the drawings. It shows:
  • Figure 1 is a perspective view of a tube bundle
  • Figure 2 is a sectional view through the tube bundle of Figure 1;
  • Figure 3 is a perspective view of a tube bundle with an electrical heating tape
  • Figure 4 is a sectional view through the tube bundle of Figure 3;
  • Figure 5 is a perspective view of a tube bundle with four strands of which two are made of plastic and two made of stainless steel quality UNS S31254 and
  • FIG. 6 shows a sectional view through a tube bundle of FIG. 5.
  • Figures 1 and 2 show four metallic tubes 1, which are stranded into a tube bundle 2.
  • the tubes 1 are made of austenitic stainless steel of quality UNS S31254, manufactured and tested according to the standards NORSOK M-630 and M-650 Rev. 4 September 2011.
  • the tube bundle 2 has a length of more than 100 m and is delivered in coil form. The total length can be up to 10,000 m. In a manner not shown are larger lengths sections, which have at least a length of 12 m, connected by orbital welding together.
  • the strict regulations of the standard NORSOK M-650 Rev. 4 September 2001 or the specifications according to the material data sheet of the NORSOK M-630 are complied with. In particular, this is the material data sheet R11 of the NORSOK standard M-630 Rev. 4.
  • FIG. 1 shows that the tube bundle 2, in addition to an outer casing 3, also has a stranding 4, which additionally surrounds the individual tubes 1.
  • the Umseilung 4 separates the outer shell 3 of the tubes 1 and surrounds the tubes. 1 fully and completely. The individual tubes 1 are therefore only indirectly connected via the Umseilung 4 with the outer jacket 3.
  • the Umseilung 4 can also be referred to as an inner jacket and consists in particular of a non-flammable rubber jacket.
  • the individual tubes 1 are additionally provided in each case with a seamless extruded shell 11 made of plastic, before the tubes 1 are stranded and finally encased again and surrounded with the outer jacket 3.
  • the variant according to FIGS. 3 and 4 shows a tube bundle 2 which can be tempered.
  • tubes 1 made of said metal material of quality UNS S31254 are used.
  • Parallel to the tubes 1 extends a heating element 5, which is electrically heated.
  • the heating conductor 5 is insulated.
  • a potential equalization conductor 6 runs parallel to the heating conductor 5 and the tubes 1.
  • the potential equalization conductor 6 is a tinned copper strand.
  • the heating conductor 5 together with the tubes 1 is located within a first metallic jacket 7.
  • the jacket 7 is electrically conductive. It is a jacket 7 made of an aluminum strip, which is wound around the heating element 5 and the tubes 1.
  • Reference numeral 12 denotes a spare circle diameter, i. the diameter occupied by the twisted tubes 1. In the middle between the tubes 1 serving as a core element inlet 13 is arranged.
  • Heat is introduced into the interior of the illustrated arrangement via the heating conductor 5.
  • an insulating jacket 9 has been applied outside the second metallic shell 8.
  • the insulating jacket 9 consists of or contains glass fibers and is used for thermal insulation of Arrangement to the outside.
  • a seamlessly extruded outer sheath 3 made of plastic is again provided, which protects the entire arrangement.
  • FIG. 3 again shows a tube bundle 2 with a total of four tubes 1, 10.
  • Two tubes 1 are made of metallic material of the type in question here.
  • Two further tubes 10 are made of plastic, in particular of PFA or PTFE.
  • the alternately arranged and mutually twisted tubes 1, 10 are immediately adjacent, so that a heat exchange between the tubes 1, 10 takes place.
  • the plastic pipes 10 can be traversed by steam, while the tubes 1 consist of the stainless steel in question here.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Heat Treatment Of Articles (AREA)
  • Arc Welding In General (AREA)

Abstract

La présente invention concerne un procédé de fabrication de tubes gainés utilisant au moins un tube métallique (1) en acier austénitique de qualité UNS S 31254, produit et contrôlé selon les normes NORSOK M-630 et M-650 Rév. 4 septembre 2011, en sections longitudinales d'un seul tenant du même matériau de plus de 12 m, en particulier de plus de 100 m, les sections longitudinales du tube pouvant être assemblées les unes aux autres par soudage orbital jusqu'à des longueurs de 10 000 m, et les conditions du test de corrosion ASTM G42 à une température de test de 50 °C pendant 24 heures étant remplies dans la mesure où, après décapage pendant 5 min à 60 °C dans une solution de 20 % de HN03 + 5 % de HF, un agrandissement de 20x ne fait apparaître aucune corrosion perforante et la perte de poids est inférieure à 4g/m2. Le tube 1 peut être entouré directement ou indirectement d'une gaine extérieure 3 en matière plastique extrudée sans soudure.
PCT/DE2014/000276 2013-07-31 2014-06-04 Procédé de fabrication de tubes gainés Ceased WO2015014332A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310012695 DE102013012695A1 (de) 2013-07-31 2013-07-31 Verfahren zur Herstellung von ummantelnden Rohren
DE102013012695.9 2013-07-31

Publications (2)

Publication Number Publication Date
WO2015014332A2 true WO2015014332A2 (fr) 2015-02-05
WO2015014332A3 WO2015014332A3 (fr) 2015-04-16

Family

ID=51539092

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/000276 Ceased WO2015014332A2 (fr) 2013-07-31 2014-06-04 Procédé de fabrication de tubes gainés

Country Status (2)

Country Link
DE (1) DE102013012695A1 (fr)
WO (1) WO2015014332A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3492792A1 (fr) * 2017-12-04 2019-06-05 KME Germany GmbH & Co. KG Dispositif de transport d'un milieu et procédé de préparation
CN111712652A (zh) * 2017-09-20 2020-09-25 安全工程有限责任公司 绳索连接系统、装置和方法
US12116843B2 (en) 2017-07-17 2024-10-15 Safeworks, Llc Rope joining

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105333243A (zh) * 2015-11-18 2016-02-17 潘泉方 高压力管道(sus304l管缠绕grp管功能复合)
CN113465775B (zh) * 2021-06-21 2022-04-01 武汉理工大学 一种基于fbg的嵌入式电机温度磁场传感器

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
US3269422A (en) * 1963-01-09 1966-08-30 Moore & Co Samuel Composite tubing product and apparatus and method for manufacturing the same
NO155826B (no) * 1984-10-04 1987-02-23 Kvaerner Subsea Contracting Roerbuntkabel til bruk under vann.
NO174940C (no) * 1992-02-21 1997-08-06 Kvaerner Energy As Fremgangsmåte til fremstilling og sammenslagning av en kabelstreng, kabelstreng fremstilt ved fremgangsmåten samt maskin for utövelse av fremgangsmåten
AU5364594A (en) * 1992-10-26 1994-05-24 Kevin Gendron Improved offshore umbilical and method of forming an offshore umbilical
FR2811739B1 (fr) * 2000-07-11 2002-09-13 Geci Tubes en acier inoxydable recouverts d'un revetement de surface, procede pour son obtention et installation constituee de tels tubes raccordes les uns aux autres

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12116843B2 (en) 2017-07-17 2024-10-15 Safeworks, Llc Rope joining
CN111712652A (zh) * 2017-09-20 2020-09-25 安全工程有限责任公司 绳索连接系统、装置和方法
EP3492792A1 (fr) * 2017-12-04 2019-06-05 KME Germany GmbH & Co. KG Dispositif de transport d'un milieu et procédé de préparation
US11939997B2 (en) 2017-12-04 2024-03-26 Cunova Gmbh Device for transporting a medium and assembly method

Also Published As

Publication number Publication date
DE102013012695A1 (de) 2015-02-05
WO2015014332A3 (fr) 2015-04-16

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