WO2014098592A1 - Expansion barrel - Google Patents

Expansion barrel Download PDF

Info

Publication number
WO2014098592A1
WO2014098592A1 PCT/NL2013/050922 NL2013050922W WO2014098592A1 WO 2014098592 A1 WO2014098592 A1 WO 2014098592A1 NL 2013050922 W NL2013050922 W NL 2013050922W WO 2014098592 A1 WO2014098592 A1 WO 2014098592A1
Authority
WO
WIPO (PCT)
Prior art keywords
rings
relatively
expansion barrel
expansion
barrel according
Prior art date
Application number
PCT/NL2013/050922
Other languages
French (fr)
Inventor
Nico MEIJBURG
Robert George NIKKELS
Original Assignee
Trelleborg Ede B.V.
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 Trelleborg Ede B.V. filed Critical Trelleborg Ede B.V.
Publication of WO2014098592A1 publication Critical patent/WO2014098592A1/en

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
    • F16L51/00—Expansion-compensation arrangements for pipe-lines
    • F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
    • F16L51/024—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube non-metallic
    • 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
    • F16L51/00—Expansion-compensation arrangements for pipe-lines
    • F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
    • F16L51/025—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with several corrugations
    • 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
    • F16L51/00—Expansion-compensation arrangements for pipe-lines
    • F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
    • F16L51/026—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with interior reinforcement
    • 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
    • F16L51/00—Expansion-compensation arrangements for pipe-lines
    • F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
    • F16L51/027—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with external reinforcement

Definitions

  • the present invention relates to an expansion barrel for absorbing contraction and expansion in a pipeline.
  • Expansion barrels are used in, inter alia, tar sand
  • the expansion barrel is substantially tubular in shape and is constructed so that it can vary in length.
  • the expansion barrel is mounted between two steel pipes in the pipeline via flanges provided at both ends thereof.
  • a known expansion barrel consists substantially of two tubular parts which can telescope over one another. Problems that can occur in such expansion barrels are, inter alia, wear, defects and leakage.
  • the object of the invention is to provide an expansion barrel that alleviates these problems.
  • the expansion barrel comprises a multitude of relatively elastic rings that extend around an axis, a multitude of relatively inelastic rings that extend around said axis, wherein the relatively elastic rings and the relatively inelastic rings are
  • relatively inelastic rings are provided over the relatively inelastic wires between the relatively elastic rings, wherein the wires of both sets extend parallel to each other in opposed helices over at least substantially the entire length of the expansion barrel.
  • the inelastic wires which extend helically over the elastic rings, enable the expansion barrel to elongate, but they also retain the elastic rings upon compression or elongation, thereby increasing the stability. Without these inelastic wires the expansion barrel would become unstable upon compression, since the large movements in the system might lead to uncontrolled bending of the system into an undesirable S- shape .
  • the stability in the expansion barrel is obtained from an interaction between the elastic rings, preferably in combination with a thick elastic inner wall, the inelastic wires over the elastic rings and the intermediate inelastic rings .
  • the relatively elastic rings preferably have a greater thickness than the relatively inelastic rings, with the internal diameters of the rings being practically identical.
  • the relatively elastic rings preferably have a thickness at least two times, preferably about three times, that of the relatively inelastic rings.
  • the widths of the relatively elastic rings and the relatively inelastic rings are
  • the outer sides of the relatively elastic rings preferably have an at least
  • the inner sides of the rings are provided with a relatively elastic wear layer, preferably over at least substantially the entire length of the expansion barrel.
  • the relatively elastic rings and/or the relatively elastic wear layer are preferably made of a rubber.
  • the average helix angle of the wires is preferably between 10° and 60°, more preferably between 25° and 50°, even more preferably about 37.5°. The optimum helix angle depends on the materials used and the dimensions of the rings.
  • the ends of the expansion barrel are preferably provided with rigid mounting flanges.
  • the elasticity of the material of the relatively elastic rings is preferably substantially higher than that of the material of the relatively elastic wear layer.
  • the relatively inelastic rings are preferably made of a metal.
  • the metal rings are preferably built up of steel wire .
  • the wires are preferably made of a yarn material selected from the group consisting of: an ultrahigh-molecular weight polyethylene, for example Dyneema T or SpectraT , an aramid, for example Twaron TM or KevlarTM, a thermosetting liquid crystalline polyoxazole, for example PBO TM or ZylonTM, a thermotropic liquid crystal polymer, for example VectranTM or ZeniteTM, carbon or a polyester.
  • a yarn material selected from the group consisting of: an ultrahigh-molecular weight polyethylene, for example Dyneema T or SpectraT , an aramid, for example Twaron TM or KevlarTM, a thermosetting liquid crystalline polyoxazole, for example PBO TM or ZylonTM, a thermotropic liquid crystal polymer, for example VectranTM or ZeniteTM, carbon or a polyester.
  • Figure 1 is a perspective view of an expansion barrel mounted between two steel pipe lengths
  • Figure 2 is a longitudinal sectional view of the expansion barrel of figure 1 ;
  • Figure 3 shows a detail according to arrow III of the longitudinal sectional view of figure 2, near an end of the expansion barrel;
  • Figure 4 shows an alternative embodiment of the end of the expansion barrel according to arrow II in figure 2.
  • FIGS 1, 2 and 3 there is shown an expansion barrel 1 having a length of 3.3 m and an internal diameter of 74 cm.
  • the expansion barrel comprises an inner tubular wear layer 2 of elastic rubber over its entire length, which wear layer has a thickness of 50 mm.
  • Around said wear layer 2 evenly spaced rubber rings 3 are provided.
  • the rings 3 have a semicircular circumference on the outer side, seen in cross- sectional view, and have a height of 80 mm and a width of 80 mm.
  • the spacing between the rubber rings 3 is 80 mm as well.
  • the elasticity of the rings 3 is greater than that of the wear layer 2.
  • Eight layers 4 of parallel aramid yarns are provided over the rubber rings 3 and the intermediate wear layer 2.
  • the parallel, abutting aramid yarns extend helically, in the direction of a corkscrew, around the expansion barrel 1 over practically the entire length thereof.
  • the parallel, abutting yarns extend helically, in the opposite direction, around the expansion barrel 1 over practically the entire length thereof.
  • the two average helix angles of the yarns are about 37.5°.
  • the helix angle of the ring is about 10°, whilst that between the rings is about 54°, resulting in an average over the entire length of the expansion barrel of about 37.5°.
  • the average helix angle has been adapted to suit the desired expansion characteristics of the expansion barrel.
  • Spring steel wire 5 is wound over the layers 4 of aramid yarns in the space between each pair of rubber rings 3 and fixed therein.
  • the steel wire packet 5 has a height which is substantially smaller than that of the rubber rings 3, so that the rubber rings 3 project outward.
  • An outer rubber protective layer 6 is provided over the layers 4 of aramid yarns.
  • Metal pipe ends 7 provided with metal flanges 8 are provided over the wear layer 2 at both ends of the expansion barrel 1 so as to make it possible to connect the two ends to
  • Figure 1 shows that the expansion barrel 1 must first be given its correct length by means of hydraulic cylinders 13, which are mounted between the flanges 8, prior to being mounted between two pipe lengths 9. After the expansion barrel 1 has been mounted, the cylinders 13 are removed, so that compression and expansion of the expansion barrel will be possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Joints Allowing Movement (AREA)
  • Laminated Bodies (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Abstract

An expansion barrel (1) for absorbing contraction and expansion in a pipeline, comprising a multitude of relatively elastic rings (3) that extend around an axis, a multitude of relatively inelastic rings (5, 12) that extend around said axis, wherein the relatively elastic rings (3) and the relatively inelastic rings (5, 12) are arranged in alternating, abutting relation, and at least two sets of relatively inelastic wires (4) attached to the outer sides of the relatively elastic rings (3), wherein the relatively inelastic rings (5, 12) are provided over the relatively inelastic wires (4) between the relatively elastic rings (3), wherein the wires (4) of both sets extend parallel to each other in opposed helices over at least substantially the entire length of the expansion barrel.

Description

Expansion barrel
The present invention relates to an expansion barrel for absorbing contraction and expansion in a pipeline.
Expansion barrels are used in, inter alia, tar sand
extraction; they function to absorb extreme expansion and contraction of steel pipes caused by temperature
fluctuations. The expansion barrel is substantially tubular in shape and is constructed so that it can vary in length. The expansion barrel is mounted between two steel pipes in the pipeline via flanges provided at both ends thereof.
A known expansion barrel consists substantially of two tubular parts which can telescope over one another. Problems that can occur in such expansion barrels are, inter alia, wear, defects and leakage. The object of the invention is to provide an expansion barrel that alleviates these problems. In order to achieve that object, the expansion barrel comprises a multitude of relatively elastic rings that extend around an axis, a multitude of relatively inelastic rings that extend around said axis, wherein the relatively elastic rings and the relatively inelastic rings are
arranged in alternating, abutting relation, and at least two sets of relatively inelastic wires attached to the outer sides of the relatively elastic rings, wherein the
relatively inelastic rings are provided over the relatively inelastic wires between the relatively elastic rings, wherein the wires of both sets extend parallel to each other in opposed helices over at least substantially the entire length of the expansion barrel. Because of the large movement that occurs in the case of temperature fluctuations, the deformation of the elastic rings is considerable, and the forces that occur as a result of the deformation of the rings locally lead to very high reactive forces beside the rings. Said forces are
transmitted by the inelastic rings. The inelastic wires, which extend helically over the elastic rings, enable the expansion barrel to elongate, but they also retain the elastic rings upon compression or elongation, thereby increasing the stability. Without these inelastic wires the expansion barrel would become unstable upon compression, since the large movements in the system might lead to uncontrolled bending of the system into an undesirable S- shape . The stability in the expansion barrel is obtained from an interaction between the elastic rings, preferably in combination with a thick elastic inner wall, the inelastic wires over the elastic rings and the intermediate inelastic rings . The relatively elastic rings preferably have a greater thickness than the relatively inelastic rings, with the internal diameters of the rings being practically identical. The relatively elastic rings preferably have a thickness at least two times, preferably about three times, that of the relatively inelastic rings. The widths of the relatively elastic rings and the relatively inelastic rings are
preferably of the same order of magnitude, more preferably they are approximately the same. The outer sides of the relatively elastic rings preferably have an at least
substantially semicircular cross-section.
The inner sides of the rings are provided with a relatively elastic wear layer, preferably over at least substantially the entire length of the expansion barrel. The relatively elastic rings and/or the relatively elastic wear layer are preferably made of a rubber. The average helix angle of the wires is preferably between 10° and 60°, more preferably between 25° and 50°, even more preferably about 37.5°. The optimum helix angle depends on the materials used and the dimensions of the rings. The ends of the expansion barrel are preferably provided with rigid mounting flanges.
The elasticity of the material of the relatively elastic rings is preferably substantially higher than that of the material of the relatively elastic wear layer.
The relatively inelastic rings are preferably made of a metal. The metal rings are preferably built up of steel wire .
The wires are preferably made of a yarn material selected from the group consisting of: an ultrahigh-molecular weight polyethylene, for example Dyneema T or SpectraT , an aramid, for example Twaron TM or KevlarTM, a thermosetting liquid crystalline polyoxazole, for example PBO TM or ZylonTM, a thermotropic liquid crystal polymer, for example Vectran™ or Zenite™, carbon or a polyester.
The invention will now be explained in more detail with reference to exemplary embodiments shown in the drawings, in which : Figure 1 is a perspective view of an expansion barrel mounted between two steel pipe lengths;
Figure 2 is a longitudinal sectional view of the expansion barrel of figure 1 ;
Figure 3 shows a detail according to arrow III of the longitudinal sectional view of figure 2, near an end of the expansion barrel; and
Figure 4 shows an alternative embodiment of the end of the expansion barrel according to arrow II in figure 2.
In figures 1, 2 and 3 there is shown an expansion barrel 1 having a length of 3.3 m and an internal diameter of 74 cm. The expansion barrel comprises an inner tubular wear layer 2 of elastic rubber over its entire length, which wear layer has a thickness of 50 mm. Around said wear layer 2, evenly spaced rubber rings 3 are provided. The rings 3 have a semicircular circumference on the outer side, seen in cross- sectional view, and have a height of 80 mm and a width of 80 mm. The spacing between the rubber rings 3 is 80 mm as well. These dimensions have been adapted to suit the diameter of the expansion barrel and the desired expansion
characteristics. The elasticity of the rings 3 is greater than that of the wear layer 2.
Eight layers 4 of parallel aramid yarns are provided over the rubber rings 3 and the intermediate wear layer 2. In the even layers of aramid yarns, the parallel, abutting aramid yarns extend helically, in the direction of a corkscrew, around the expansion barrel 1 over practically the entire length thereof. In the uneven layers of aramid yarns, the parallel, abutting yarns extend helically, in the opposite direction, around the expansion barrel 1 over practically the entire length thereof. The two average helix angles of the yarns are about 37.5°. As a result of the projecting, convex shape of the rings, the helix angle of the ring is about 10°, whilst that between the rings is about 54°, resulting in an average over the entire length of the expansion barrel of about 37.5°. The average helix angle has been adapted to suit the desired expansion characteristics of the expansion barrel.
Spring steel wire 5 is wound over the layers 4 of aramid yarns in the space between each pair of rubber rings 3 and fixed therein. The steel wire packet 5 has a height which is substantially smaller than that of the rubber rings 3, so that the rubber rings 3 project outward.
An outer rubber protective layer 6 is provided over the layers 4 of aramid yarns.
Metal pipe ends 7 provided with metal flanges 8 are provided over the wear layer 2 at both ends of the expansion barrel 1 so as to make it possible to connect the two ends to
adjacent pipe lengths 9, which are likewise provided with flanges. The last steel wire packet is wound over the layers 4 of aramid yarns between two ring-shaped thresholds 10, 11 welded on the pipe ends 7, so that a strong connection is obtained . In figure 4 a few possible alternative features of the expansion barrel 1 are shown. Thus, the steel wire packets 5 can be exchanged for steel rings 12, and the aramid yarns can be fixed around the steel wire packet 5 in a closed edge at their ends .
Figure 1 shows that the expansion barrel 1 must first be given its correct length by means of hydraulic cylinders 13, which are mounted between the flanges 8, prior to being mounted between two pipe lengths 9. After the expansion barrel 1 has been mounted, the cylinders 13 are removed, so that compression and expansion of the expansion barrel will be possible.
The invention has thus been described with reference to preferred embodiments. It should be understood, however, that the present description is primarily illustrative.
Various details of the structure and the function have been presented, but modifications which are made thereto and which are fully extended by the general meaning of the terminology used in the appended claims are to be understood to fall within the principle of the present invention. The description and the drawings are to be used for interpreting the claims. The claims must not be interpreted such that the extent of the protection being sought is to be understood as being defined by the strict, literal meaning of the wording of the claims, in which case the description and the
drawings would only be used for eliminating any ambiguity encountered in the claims. To determine the extent of the protection being sought by means of the claims, every element that is equivalent to an element specified therein is to be taken into suitable consideration.

Claims

An expansion barrel for absorbing contraction and expansion in a pipeline, comprising a multitude of relatively elastic rings that extend around an axis, a multitude of relatively inelastic rings that extend around said axis, wherein the relatively elastic rings and the relatively inelastic rings are arranged in alternating, abutting relation, and at least two sets of relatively inelastic wires attached to the outer sides of the relatively elastic rings, wherein the relatively inelastic rings are provided over the relatively inelastic wires between the relatively elastic rings, wherein the wires of both sets extend parallel to each other in opposed helices over at least substantially the entire length of the expansion barrel .
An expansion barrel according to claim 1, wherein the relatively elastic rings have a greater thickness than the relatively inelastic rings, with the internal diameters of the rings being practically identical.
An expansion barrel according to claim 2, wherein relatively elastic rings have a thickness at least two times, preferably about three times, that of the relatively inelastic rings.
An expansion barrel according to claim 1, 2 or 3, wherein the widths of the relatively elastic rings and the relatively inelastic rings are of the same order of magnitude, preferably they are approximately the same.
5. An expansion barrel according to any one of the
preceding claims, wherein the outer sides of the relatively elastic rings have an at least substantially semicircular cross-section.
6. An expansion barrel according to any one of the
preceding claims, wherein inner sides of the rings are provided with a relatively elastic wear layer over at least substantially the entire length of the expansion barrel .
7. An expansion barrel according to any one of the
preceding claims, wherein the average helix angle of the wires is between 10° and 60°, preferably between 25° and 50°, more preferably about 37.5°.
8. An expansion barrel according to any one of the
preceding claims, wherein the ends of the expansion barrel are provided with rigid mounting flanges.
9. An expansion barrel according to any one of the
preceding claims, wherein the relatively elastic rings and/or the relatively elastic wear layer are made of a rubber .
10. An expansion barrel according to claim 2, wherein the elasticity of the material of the relatively elastic rings is substantially higher than that of the material of the relatively elastic wear layer.
11. An expansion barrel according to any one of the
preceding claims, wherein the relatively inelastic rings are made of a metal.
12. An expansion barrel according to claim 11, wherein the metal rings are built up of steel wire.
13. An expansion barrel according to any one of the
preceding claims, wherein the wires are made of a material selected from the group consisting of: an ultrahigh-molecular weight polyethylene, for example
Dyneema T or SpectraT , an aramid, for example TwaronT or Kevlar™, a thermosetting liquid crystalline
polyoxazole, for example PBO TM or ZylonTM, a thermotropic liquid crystal polymer, for example Vectran™ or
Zenite™, carbon or a polyester.
PCT/NL2013/050922 2012-12-20 2013-12-19 Expansion barrel WO2014098592A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2010032 2012-12-20
NL2010032A NL2010032C2 (en) 2012-12-20 2012-12-20 EXPANSION VESSEL.

Publications (1)

Publication Number Publication Date
WO2014098592A1 true WO2014098592A1 (en) 2014-06-26

Family

ID=47748730

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2013/050922 WO2014098592A1 (en) 2012-12-20 2013-12-19 Expansion barrel

Country Status (2)

Country Link
NL (1) NL2010032C2 (en)
WO (1) WO2014098592A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111322482A (en) * 2018-12-13 2020-06-23 乔治费歇尔管路系统公开股份有限公司 Length compensator
CN114178568A (en) * 2021-12-17 2022-03-15 洛阳科品实业有限公司 Quick expansion device for thin-wall pipe

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1696435A (en) * 1923-05-08 1928-12-25 Revere Rubber Co Expansion joint
NL7013250A (en) * 1970-09-08 1972-03-10
GB2057779A (en) * 1979-08-16 1981-04-01 Cables De Lyon Geoffroy Delore A flexible tubular casing for electric cable
US6000434A (en) * 1989-09-11 1999-12-14 Dayco Products, Inc. Flexible hose construction and method of making the same
EP1156257A1 (en) * 2000-02-29 2001-11-21 Asahi Beer Engineering Ltd. Expansion joint device
US20040227343A1 (en) * 2003-02-12 2004-11-18 Yuji Takagi Metallic tubular hose having a rubber or resin hard material layer
EP1555474A1 (en) * 2002-09-03 2005-07-20 Nichirin Co., Ltd. Vibration absorbing pipe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1696435A (en) * 1923-05-08 1928-12-25 Revere Rubber Co Expansion joint
NL7013250A (en) * 1970-09-08 1972-03-10
GB2057779A (en) * 1979-08-16 1981-04-01 Cables De Lyon Geoffroy Delore A flexible tubular casing for electric cable
US6000434A (en) * 1989-09-11 1999-12-14 Dayco Products, Inc. Flexible hose construction and method of making the same
EP1156257A1 (en) * 2000-02-29 2001-11-21 Asahi Beer Engineering Ltd. Expansion joint device
EP1555474A1 (en) * 2002-09-03 2005-07-20 Nichirin Co., Ltd. Vibration absorbing pipe
US20040227343A1 (en) * 2003-02-12 2004-11-18 Yuji Takagi Metallic tubular hose having a rubber or resin hard material layer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111322482A (en) * 2018-12-13 2020-06-23 乔治费歇尔管路系统公开股份有限公司 Length compensator
CN111322482B (en) * 2018-12-13 2023-03-10 乔治费歇尔管路系统公开股份有限公司 Length compensator
CN114178568A (en) * 2021-12-17 2022-03-15 洛阳科品实业有限公司 Quick expansion device for thin-wall pipe

Also Published As

Publication number Publication date
NL2010032C2 (en) 2014-06-23

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