CN1434768A - 多层管道 - Google Patents
多层管道 Download PDFInfo
- Publication number
- CN1434768A CN1434768A CN01810782A CN01810782A CN1434768A CN 1434768 A CN1434768 A CN 1434768A CN 01810782 A CN01810782 A CN 01810782A CN 01810782 A CN01810782 A CN 01810782A CN 1434768 A CN1434768 A CN 1434768A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- layer
- pipe
- value
- pipe layer
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000004698 Polyethylene Substances 0.000 claims description 12
- 229920001903 high density polyethylene Polymers 0.000 claims description 8
- 239000004700 high-density polyethylene Substances 0.000 claims description 8
- 230000002902 bimodal effect Effects 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims 2
- 229920002397 thermoplastic olefin Polymers 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 12
- -1 polyethylene Polymers 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000001684 chronic effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000847 nonoxynol Polymers 0.000 description 1
- 239000008041 oiling agent Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
- Y10T428/1393—Multilayer [continuous layer]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
- Pipeline Systems (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
由同类而不同性质的、彼此不可分割地结合的热塑性聚烯烃层构造的管道，其中外部第一管层和与第一管层内侧相邻的第二管层由非交联的材料构造，第二管层具有接近单管层标准高压管的FNCT－值或NPT－值，而第一管层显示比第二管层至少高出约3倍的FNCT－值或更高的NPT－值，设有与第二管层内侧相邻的第三管层，其同样由非交联的材料构成并且具有比第二管层至少高出约3倍的FNCT－值或至少高出约2倍的NPT－值。
Description
本发明涉及一种由形成管壁的、同轴热塑性烯烃层共同构成的、根据权利要求1的主题定义的管道。
已知的此类管道(DE 299 06 998.2 U1)由内外两层构造。其内层具有单管层高压管道的FNCT-值或NPT-值，其外层显示至少高出约3倍的FNCT-值及提高的NPT-值。
由此出发本发明致力于提高管道铺设时和铺设后的可承受应力性能的问题。本发明通过具有权利要求1的特征的管道解决所述问题。关于其它的实施方案请参阅权利要求2至10。
根据本发明的管道的全部管层是由非交联的材料构造的，以便所述管道末端可以毫无问题地采用所有平常的连接技术可靠地连接，如电子套焊(Elektromuffenschweiβen)或对焊。因为不存在妨碍性的嵌置区域，所述管道是毫无问题地可回收利用的。所述管道具有不同寻常的高坚固性，因为承受拉扯的外管层在铺设中特别是在无沟铺设技术中的裂纹生长微乎其微，特别甚至在低温下，如通常在用于地面铺设的水、气体管道等情形下出现的低温下，也是如此。尤其是所述管道还能承受高的外部点负荷，例如由石块引起的，因为最内的第三管层由于它的提高的FNCT-或NPT-值，内管层可以完好无损地承受在点负荷下表现出的相当高的张应力。
如果希望克服特殊负荷，第一和第三管层可以具有比第二管层至少高出约5倍的FNCT-值或至少高出约2.5倍的NPT-值。
管道所有的管层通过熔化或焊接联结成为一种表现如同单管层管道的管道单元，有其三个管层的所述管道具有标准的外直径和标准外直径对总壁厚(SDR)比，该比通常为11或17。
第一和第三管层的壁厚之和为直至总壁厚的50％是有利的，在此第三管层壁厚宜至少是管的总壁厚的20％。一种优选的实施方案是，第一和第三管层各为管的总壁厚的25％，而第二管层为50％。
管道各层优选由高密聚乙烯(PEHD)构造，在此管道各层可以均匀地由PE 80或PE 100构造。作为替代，也可以设计为每一层自由选择采用PE 100或PE 80。
第一和第三管层由具有双峰型分子量分布的与己烯共聚合的PEHD所构造是有利的。至少管道的第一层的材料可以掺有提高UV-稳定性的或着色的添加剂。
第一和第三管层具有比第二管层至少高出3倍的FNCT-值[全缺口蠕变测试(Full Notched Creep Test)]或至少高出2倍的NPT-值[缺口管件测试(Notched Pipe Test)]，而第二管层具有单管层标准高压管的FNCT-值或NPT-值。关于实施测试以获取FNCT-值请参阅S.H.Beech，S.J.Palmer和R.W.Burbidge在1997年度国际塑料管年会(1997)，第205页及其后几页[International Plastic Pipe Symposium(1997)，S.205 ff]，题为《预测高性能聚乙烯管树脂的慢性裂纹生长的耐性的加速实验室测试法》(Accelerated Laboratory Tests to Predict the Resistance to SlowCrack Growth of High Performance Polyethylene Pipe Resins)的论文。
进一步请参阅M.Fleissner在《聚合物工程和科学》1998年2月，第38卷，第2期(Polymer Engineering and Science，Febr.1998，Vol.38，No.2)中题为《用于确定聚乙烯的应力开裂性能的完全缺口蠕变测试的经验》(Experience With a Full Notch Creep Test in Determining theStress Crack Performance of Polyethylenes)的论文。
基于所描述的测试条件，在80℃，4.6Mpa和2％Arkopal N100作为皂粉润滑剂下，由PE 100构造的单管层标准高压管的FNCT-值约200-500h，而根据本发明的第一和第三管层的材料的FNCT-值约600至1500h。在使用具有双峰型分子量分布的与己烯共聚合的PEHD时其FNCT-值超过了2200h并可以达到大约3000h的范围。
关于实施测试以测定NCT-值请参照W.J.Allwood和S.H.Beech的报告，《用于评估聚乙烯管道的缺口管道测试》(The‘Noteched PipeTests’For the Performance Assessment of Polyethylene Pipe)，塑料燃气管道年会，(1993)，第339页及其后(Plastic Fuel Gas Pipe Symposium，(1993)，S.339 ff)。基于其中所描述的测试条件，在80℃，4.6Mpa，由PE 100构造的单管层标准高压管的NPT-值约3000h，而根据本发明的第一和第三管层材料的NPT-值至少约6000h。在使用具有双峰型分子量分布的与己烯共聚合的PEHD时其NPT-值大大超出并达到约7500h的范围。
Claims (10)
1.由同类而不同性质的、彼此不可分割地结合的热塑性聚烯烃层构造的管道，其中外部第一管层和与第一管层内侧相邻的第二管层由非交联的材料构造，第二管层具有接近单管层标准高压管的FNCT-值或NPT-值，而第一管层显示比第二管层至少高出约3倍的FNCT-值或更高的NPT-值，其特征在于，设有与第二管层内侧相邻的第三管层，其同样由非交联的材料构成并且具有比第二管层至少高出约3倍的FNCT-值或至少高出约2倍的NPT-值。
2.根据权利要求1的管道，其特征在于，其第一和第三管层具有比第二管层至少高出约5倍的FNCT-值或至少高出约2.5倍的NPT-值。
3.根据权利要求1或2的管道，其特征在于，管道所有的层通过熔化或焊接而联接成为一种表现如同单管层管道的管道单元。
4.根据权利要求1至3任一项的管道，其特征在于，其第一和第三管层的壁厚之和为直至管道总壁厚的50％。
5.根据权利要求4的管道，其特征在于，其第三管层的壁厚至少是管道总壁厚的20％。
6.根据权利要求1至5任一项的管道，其特征在于，所有管道层由高密聚乙烯(PEHD)构造。
7.根据权利要求1至6任一项的管道，其特征在于，所有管道层由PE 80和/或PE100构造。
8.根据权利要求1至7任一项的管道，其特征在于，管道第一和第三管层的材料是由具有双峰型分子量分布的与己烯共聚合的PEHD构造。
9.根据权利要求1至8任一项的管道，其特征在于，管道外层的材料掺有一种提高UV-稳定性的添加剂。
10.根据权利要求1至9任一项的管道，其特征在于，管道外层的材料掺有一种着色添加剂。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20010111.0 | 2000-06-08 | ||
| DE20010111U DE20010111U1 (de) | 2000-06-08 | 2000-06-08 | Mehrschichtiges Rohr |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1434768A true CN1434768A (zh) | 2003-08-06 |
| CN1213856C CN1213856C (zh) | 2005-08-10 |
Family
ID=7942515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018107826A Expired - Fee Related CN1213856C (zh) | 2000-06-08 | 2001-05-08 | 多层管道 |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US6684910B2 (zh) |
| EP (1) | EP1286832B1 (zh) |
| JP (1) | JP4955892B2 (zh) |
| CN (1) | CN1213856C (zh) |
| AT (1) | ATE255008T1 (zh) |
| AU (2) | AU2001272397B2 (zh) |
| BR (1) | BR0111404A (zh) |
| CA (1) | CA2411679A1 (zh) |
| DE (2) | DE20010111U1 (zh) |
| DK (1) | DK1286832T3 (zh) |
| MX (1) | MXPA02012063A (zh) |
| NO (1) | NO20025726L (zh) |
| PL (1) | PL195230B1 (zh) |
| TR (1) | TR200400160T4 (zh) |
| WO (1) | WO2001094112A1 (zh) |
| ZA (1) | ZA200209683B (zh) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7740077B2 (en) * | 2002-05-16 | 2010-06-22 | Wagon Trail Ventures, Inc. | Downhole oilfield tubulars |
| US20030213596A1 (en) * | 2002-05-16 | 2003-11-20 | Davis Robert H. | Tubular goods and liners |
| DE50303122D1 (de) * | 2003-10-17 | 2006-06-01 | Geberit Technik Ag | Mehrschichtiges Rohr aus thermoplastischem Kunststoff |
| DE202004006812U1 (de) | 2004-04-28 | 2005-09-08 | Rehau Ag + Co. | Mehrschichtiges Rohr |
| DE102004062659A1 (de) | 2004-12-24 | 2006-07-06 | Rehau Ag + Co. | Verfahren zur Herstellung eines Hohlkörpers |
| ES2357363T3 (es) * | 2005-05-10 | 2011-04-25 | Ineos Europe Limited | Nuevos copolímeros. |
| DE202006012608U1 (de) * | 2006-08-16 | 2007-12-27 | Rehau Ag + Co. | Mehrschichtiges Rohr |
| DE202006012609U1 (de) | 2006-08-16 | 2007-12-27 | Rehau Ag + Co. | Mehrschichtiges Rohr |
| DE202006012610U1 (de) * | 2006-08-16 | 2007-12-27 | Rehau Ag + Co. | Mehrschichtiges Rohr |
| DE202007004346U1 (de) | 2007-03-21 | 2007-10-31 | Rehau Ag + Co | Rohranordnung |
| DE102008008321B4 (de) * | 2008-02-07 | 2017-09-28 | Gerodur Mpm Kunststoffverarbeitung Gmbh & Co. Kg | Schweißbares Mehrschicht-Kunststoffrohr |
| DE202008015520U1 (de) * | 2008-11-22 | 2010-04-22 | Rehau Ag + Co | Kunststoffrohr |
| CA2753024C (en) * | 2009-02-27 | 2018-05-01 | Flexpipe Systems Inc. | High temperature fiber reinforced pipe |
| US8404324B2 (en) | 2010-04-14 | 2013-03-26 | Braskem America, Inc. | Polypropylene compositions |
| US8997880B2 (en) | 2012-01-31 | 2015-04-07 | Wagon Trail Ventures, Inc. | Lined downhole oilfield tubulars |
| DE102012101869A1 (de) * | 2012-03-06 | 2013-09-12 | Rehau Ag + Co | Verwendung eines Polymermaterials |
| DE102012111140A1 (de) * | 2012-11-20 | 2014-05-22 | Rehau Ag + Co. | Verwendung eines ersten und eines zweiten Polymermaterials |
| DE102013105202A1 (de) * | 2013-05-22 | 2014-11-27 | Egeplast International Gmbh | Mindestens zweischichtiges Kunststoffrohr |
| PL3075532T3 (pl) * | 2015-04-02 | 2020-05-18 | Wavin B.V. | Rura, w szczególności rura ochronna do kabli |
| JP7136624B2 (ja) * | 2018-08-01 | 2022-09-13 | 積水化学工業株式会社 | 排水管および雨水排水装置 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50129670A (zh) * | 1974-04-02 | 1975-10-14 | ||
| JPS50129670U (zh) * | 1974-04-10 | 1975-10-24 | ||
| JPS54159723A (en) * | 1978-06-08 | 1979-12-17 | Mitsubishi Plastics Ind Ltd | Polyethylene pipe having different densities in thickness direction |
| US4211595A (en) * | 1978-10-10 | 1980-07-08 | The Kendall Company | Method of coating pipe |
| JPS6132743A (ja) * | 1984-07-26 | 1986-02-15 | 昭和電工株式会社 | 多層構造管 |
| JPS6292844A (ja) * | 1985-10-18 | 1987-04-28 | 芦森工業株式会社 | 上水道用管路の内張り材 |
| US4892442A (en) * | 1987-03-03 | 1990-01-09 | Dura-Line | Prelubricated innerduct |
| CH677394A5 (zh) * | 1988-09-06 | 1991-05-15 | Symalit Ag | |
| FR2701303B1 (fr) * | 1993-02-05 | 1995-04-28 | Nobel Plastiques | Canalisation multicouches en matière plastique. |
| US5472754A (en) * | 1993-02-05 | 1995-12-05 | Nobel Plastiques | Multilayer plastics material hose |
| JPH09133268A (ja) * | 1995-11-08 | 1997-05-20 | Sekisui Chem Co Ltd | ポリエチレン複層管 |
| DE29706045U1 (de) * | 1997-04-05 | 1997-06-19 | Unicor Rohrsysteme GmbH, 97437 Haßfurt | Mehrschichtiges Kunststoff-Rohr |
| NL1008960C2 (nl) * | 1998-04-22 | 1999-10-25 | Wavin Bv | Kunststofbuis met een uit meerdere lagen samengestelde wand. |
| JP2000109521A (ja) * | 1998-10-07 | 2000-04-18 | Asahi Chem Ind Co Ltd | 成形加工性に優れたポリエチレンパイプ及び継ぎ手用樹脂 |
| US6287657B1 (en) * | 1998-11-12 | 2001-09-11 | Telcordia Technologies, Inc. | All-plastic air feeder pipe |
| EP1041113A1 (en) * | 1999-03-30 | 2000-10-04 | Fina Research S.A. | Polyolefins and uses thereof |
| DE29906998U1 (de) * | 1999-04-20 | 1999-07-01 | Wavin B.V., Zwolle | Zweischichtiges Rohr |
-
2000
- 2000-06-08 DE DE20010111U patent/DE20010111U1/de not_active Expired - Lifetime
-
2001
- 2001-05-08 DE DE50101045T patent/DE50101045D1/de not_active Expired - Lifetime
- 2001-05-08 AU AU2001272397A patent/AU2001272397B2/en not_active Ceased
- 2001-05-08 AT AT01951483T patent/ATE255008T1/de not_active IP Right Cessation
- 2001-05-08 PL PL01359219A patent/PL195230B1/pl not_active IP Right Cessation
- 2001-05-08 CN CNB018107826A patent/CN1213856C/zh not_active Expired - Fee Related
- 2001-05-08 WO PCT/EP2001/005174 patent/WO2001094112A1/de active IP Right Grant
- 2001-05-08 CA CA002411679A patent/CA2411679A1/en not_active Abandoned
- 2001-05-08 TR TR2004/00160T patent/TR200400160T4/xx unknown
- 2001-05-08 AU AU7239701A patent/AU7239701A/xx active Pending
- 2001-05-08 US US10/296,600 patent/US6684910B2/en not_active Expired - Fee Related
- 2001-05-08 BR BR0111404-2A patent/BR0111404A/pt not_active Application Discontinuation
- 2001-05-08 JP JP2002501656A patent/JP4955892B2/ja not_active Expired - Fee Related
- 2001-05-08 MX MXPA02012063A patent/MXPA02012063A/es active IP Right Grant
- 2001-05-08 EP EP01951483A patent/EP1286832B1/de not_active Expired - Lifetime
- 2001-05-08 DK DK01951483T patent/DK1286832T3/da active
-
2002
- 2002-11-28 ZA ZA200209683A patent/ZA200209683B/en unknown
- 2002-11-28 NO NO20025726A patent/NO20025726L/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO20025726D0 (no) | 2002-11-28 |
| US20030089413A1 (en) | 2003-05-15 |
| ZA200209683B (en) | 2004-02-12 |
| PL359219A1 (en) | 2004-08-23 |
| DK1286832T3 (da) | 2004-02-16 |
| PL195230B1 (pl) | 2007-08-31 |
| WO2001094112A1 (de) | 2001-12-13 |
| JP2003535718A (ja) | 2003-12-02 |
| US6684910B2 (en) | 2004-02-03 |
| AU7239701A (en) | 2001-12-17 |
| CN1213856C (zh) | 2005-08-10 |
| TR200400160T4 (tr) | 2004-03-22 |
| CA2411679A1 (en) | 2002-12-06 |
| EP1286832A1 (de) | 2003-03-05 |
| NO20025726L (no) | 2002-11-28 |
| ATE255008T1 (de) | 2003-12-15 |
| EP1286832B1 (de) | 2003-11-26 |
| JP4955892B2 (ja) | 2012-06-20 |
| DE20010111U1 (de) | 2001-10-31 |
| AU2001272397B2 (en) | 2005-04-21 |
| MXPA02012063A (es) | 2004-08-19 |
| BR0111404A (pt) | 2003-06-03 |
| DE50101045D1 (de) | 2004-01-08 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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