WO1994024473A1 - Pipeline calorifuge - Google Patents

Pipeline calorifuge Download PDF

Info

Publication number
WO1994024473A1
WO1994024473A1 PCT/DK1994/000155 DK9400155W WO9424473A1 WO 1994024473 A1 WO1994024473 A1 WO 1994024473A1 DK 9400155 W DK9400155 W DK 9400155W WO 9424473 A1 WO9424473 A1 WO 9424473A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
channels
media
protection
protection pipe
Prior art date
Application number
PCT/DK1994/000155
Other languages
English (en)
Inventor
Erik Winther Christensen
Original Assignee
Erik Winther Christensen
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 Erik Winther Christensen filed Critical Erik Winther Christensen
Publication of WO1994024473A1 publication Critical patent/WO1994024473A1/fr
Priority to FI955021A priority Critical patent/FI955021A/fi
Priority to SE9503707A priority patent/SE503982C2/sv

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
    • F16L9/00—Rigid pipes
    • F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
    • F16L9/19—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
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeve, two half sleeves

Definitions

  • Such pipelines are used among other things for transportation of cold or hot water, e.g. as district heating pipes.
  • the purpose of the invention in question is to present a heat insulated pipeline which does not have the disadvantages of the already known pipelines.
  • This aim is reached by constructing a pipeline of the type mentioned in the introduction to Claim 1 as indicated in the characterizing part of Claim 1. Firstly, it is hereby obtained that no diffusion of water vapor occurs through the protection pipe into the insulation. Secondly, the added heat will be evenly distributed over the entire protection pipe and at the same time an evenly distributed supply of heat to the space between the media pipe and the protection pipe will take place. Thirdly, the pipeline is easy to assemble and therefore inexpensive to produce, as electrical heating cables can be inserted in the channels after the pipe has been produced.
  • a heat insulated pipe consists, according to the invention, of an inner media pipe 1, made of a synthetic material e.g. PE.
  • the media pipe 1 is surrounded by a protection pipe 2, the inner diameter of which is larger that the outer diameter of the media pipe 1 such that there is a space 9 between the media pipe 1 and the protection pipe 2.
  • the channels 6 may advantageously be oriented in a way such that their central axis 7 is parallel with the central axis 8 of the protection pipe 2.
  • the channels 6 may have the same thickness as pipe 2 and may, as shown, have a circular cross section.
  • the channels 6 and the protection pipe 2 may advantageously be procuced in one piece by extrusion.
  • pipe 2 there is a heat insulating material 4, e.g. polyurethane foam, and on the very outside the pipe is provided with an outer pipe 5 which is impermeable to water and vapour.
  • a heat insulating material 4 e.g. polyurethane foam
  • the heat supply may be adjusted such that the temperature on the outside of the media pipe 1 is at least as high as on the inside of the pipe. By this a diffusion of vapour from within and out through the wall of the media pipe is prevented.
  • the space 9 between the media pipe 1 and the protection pipe 2 is aired into the atmosphere.
  • aqueous vapour which under extreme conditions of failing heat supply has penetrated into the space 9 may vanish into the atmosphere.
  • the pipes 2, 6, 4 and 5 may be prefabricated and the media pipe 1 may be inserted into the prefabricated pipe as the mounting proceeds.
  • the invention is not restricted to the described and illustrated design.
  • the channels 6 and the pipe 2 may e.g. have a different sectional form.
  • the channels 6 may also be constructed as hollows in the protection pipe 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Pipe Accessories (AREA)
  • Thermal Insulation (AREA)

Abstract

Le pipeline selon l'invention est constitué, vu en coupe transversale, d'une canalisation médiane (1) en matière plastique telle que du PVC entourée d'une canalisation de protection (2) dont le diamètre intérieur est supérieur au diamètre extérieur de ladite canalisation médiane (1). Ladite canalisation de protection (2) comporte deux ou plusieurs canaux s'étendant longitudinalement (6) pouvant être prévus à l'extérieur de la canalisation (1) et en relation thermoconductrice avec la canalisation (2). La canalisation (2) est en matériau imperméable à la vapeur d'eau présentant une bonne thermoconductivité tel que l'aluminium, et les canaux (6) sont fabriqués dans le même matériau que la canalisation (2). La canalisation de protection (2) est entourée d'une isolation (4) telle que de la mousse de polyuréthane recouverte, à l'extérieur, d'une enveloppe en acier imperméable à la vapeur (5). Des câbles chauffants électriques (3) sont intégrés dans un ou plusieurs canaux (6). Des conducteurs électriques tels que des fils pilotes peuvent être insérés dans d'autres canaux. L'apport calorifique est régulé par un dispositif tel qu'un thermostat de sorte que la température soit approximativement la même à l'intérieur et à l'extérieur de la canalisation médiane (1), par exemple. Un pipeline selon l'invention empêche la transmission de la vapeur d'eau dans l'isolation (4) depuis l'intérieur de la canalisation médiane (1), et l'éclatement de la canalisation médiane (1) sous l'effet du gel.
PCT/DK1994/000155 1993-04-21 1994-04-19 Pipeline calorifuge WO1994024473A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI955021A FI955021A (fi) 1993-04-21 1995-10-20 Lämpöeristetty putkijohto
SE9503707A SE503982C2 (sv) 1993-04-21 1995-10-23 Värmeisolerad rörledning

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK045593A DK170312B1 (da) 1993-04-21 1993-04-21 Varmeisoleret rørledning
DK0455/93 1993-04-21

Publications (1)

Publication Number Publication Date
WO1994024473A1 true WO1994024473A1 (fr) 1994-10-27

Family

ID=8093755

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1994/000155 WO1994024473A1 (fr) 1993-04-21 1994-04-19 Pipeline calorifuge

Country Status (5)

Country Link
CA (1) CA2161017A1 (fr)
DK (1) DK170312B1 (fr)
FI (1) FI955021A (fr)
SE (1) SE503982C2 (fr)
WO (1) WO1994024473A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19708347C1 (de) * 1997-03-01 1998-06-10 Asp Armaturen Schilling Puspas Mauerdurchführung
CN102330851A (zh) * 2011-07-26 2012-01-25 广东联塑科技实业有限公司 一种带电热膜的给水管材及其生产工艺
WO2012101262A1 (fr) 2011-01-27 2012-08-02 Faurecia Systemes D'echappement Procede de fabrication de structures chauffantes, de recipients chauffants, structures et recipients correspondants
WO2013137745A1 (fr) * 2012-03-14 2013-09-19 Purapipe As Canalisation multicouche en un matériau polymère, dispositif pour la fabrication de la canalisation multicouche et procédé pour la fabrication de la canalisation multicouche

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105387292A (zh) * 2015-12-29 2016-03-09 淄博环能海臣环保技术服务有限公司 一种金属导体电加热保温塑胶管

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233816A (en) * 1979-08-08 1980-11-18 Pennwalt Corporation Cryogenic fluid transfer line
EP0206825A2 (fr) * 1985-06-26 1986-12-30 Parker Hannifin Corporation Conduite à double paroi
DK45192A (da) * 1992-04-02 1993-10-03 K B Loewenmark I S Raadgivende Varmefordelende monteringssystem til fastspaending af varme-/koeleroer paa roer for flydende eller luftformige medier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233816A (en) * 1979-08-08 1980-11-18 Pennwalt Corporation Cryogenic fluid transfer line
EP0206825A2 (fr) * 1985-06-26 1986-12-30 Parker Hannifin Corporation Conduite à double paroi
DK45192A (da) * 1992-04-02 1993-10-03 K B Loewenmark I S Raadgivende Varmefordelende monteringssystem til fastspaending af varme-/koeleroer paa roer for flydende eller luftformige medier

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19708347C1 (de) * 1997-03-01 1998-06-10 Asp Armaturen Schilling Puspas Mauerdurchführung
WO2012101262A1 (fr) 2011-01-27 2012-08-02 Faurecia Systemes D'echappement Procede de fabrication de structures chauffantes, de recipients chauffants, structures et recipients correspondants
CN102330851A (zh) * 2011-07-26 2012-01-25 广东联塑科技实业有限公司 一种带电热膜的给水管材及其生产工艺
WO2013137745A1 (fr) * 2012-03-14 2013-09-19 Purapipe As Canalisation multicouche en un matériau polymère, dispositif pour la fabrication de la canalisation multicouche et procédé pour la fabrication de la canalisation multicouche
EA028688B1 (ru) * 2012-03-14 2017-12-29 Пьюрэпайп Холдинг Лтд. Многослойный полимерный трубопровод, устройство и способ изготовления такого многослойного трубопровода

Also Published As

Publication number Publication date
FI955021A (fi) 1995-12-19
SE503982C2 (sv) 1996-10-14
SE9503707L (sv) 1995-12-21
FI955021A0 (fi) 1995-10-20
DK45593D0 (da) 1993-04-21
DK170312B1 (da) 1995-07-31
DK45593A (da) 1994-10-22
SE9503707D0 (sv) 1995-10-23
CA2161017A1 (fr) 1994-10-27

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