CH323096A - Pipeline made of electrically insulating material - Google Patents

Pipeline made of electrically insulating material

Info

Publication number
CH323096A
CH323096A CH323096DA CH323096A CH 323096 A CH323096 A CH 323096A CH 323096D A CH323096D A CH 323096DA CH 323096 A CH323096 A CH 323096A
Authority
CH
Switzerland
Prior art keywords
pipeline
conductors
insulating material
electrically insulating
pipe
Prior art date
Application number
Other languages
German (de)
Inventor
Attilio Dr Torricelli
Original Assignee
Schweiz Sprengstoff Ag Cheddit
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 Schweiz Sprengstoff Ag Cheddit filed Critical Schweiz Sprengstoff Ag Cheddit
Publication of CH323096A publication Critical patent/CH323096A/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00Water main or service pipe systems
    • E03B7/09Component parts or accessories
    • E03B7/10Devices preventing bursting of pipes by freezing
    • E03B7/12Devices preventing bursting of pipes by freezing by preventing freezing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L53/00Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/30Heating of pipes or pipe systems
    • F16L53/35Ohmic-resistance heating
    • F16L53/38Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Description

  

  Rohrleitung aus elektrisch     isolierendem    Material    Die vorliegende Erfindung betrifft eine  Rohrleitung aus einem elektrisch isolierenden  Material, wie z. B. Polyäthylen,     PolS--invl-          Chlorid    oder dergleichen. Es kommt oft vor,  dass solche Leitungen für Flüssigkeiten ver  wendet werden, die bei kalter Witterung ein  frieren.  



  Die Erfindung bezweckt, diese Gefahr bei  Solchen Rohrleitungen auszuschliessen, und  zwar dadurch, dass in mindestens zwei par  allel zur Rohrachse verlaufenden Teilen der  Rohrwandung elektrische, die     Eigenschaften     an Heizwiderständen aufweisende Leiter vor  gesehen sind.  



  Auf der beiliegenden Zeichnung sind drei  Ausführungsbeispiele des Erfindungsgegen  standes veranschaulicht.  



       Fig.1    ist. ein Längsschnitt durch einen       Abschnitt    einer Rohrleitung nach der ersten  Ausführungsform;       Fig.        \?    ist ein Querschnitt durch diese  Rohrleitung;       Fig.3    und 4 sind     Querschnitte    durch  Rohrleitungen nach der zweiten und nach der  dritten Ausführungsform.  



  Die Rohrleitung     a    nach     Fig.    1 und 2 be  steht aus einem thermoplastischen Kunststoff,  wie z. B. Polyäthylen,     Polyvinvl-Chlorid    oder  dergleichen, obwohl sie     auch    aus einem an  dern elektrisch isolierenden Material, wie z. B.       Gummi,    bestehen könnte. Sie wird zweckmässig  nach dem sogenannten     Strangpressverfahren       hergestellt. Im gleichen Arbeitsgang werden  an zwei einander gegenüberliegenden, parallel  zur Rohrachse verlaufenden Teilen der Rohr  wandung elektrische Leiter b vorgesehen, die,  wenn die Rohrleitung verlegt ist, zur Strom  führung verwendet werden können.  



  Es wäre auch möglich, in der Rohrwan  dung eine grössere Zahl gleichmässig rings  herum verteilter Leiter vorzusehen.  



  Im einen wie im andern Falle weisen diese  Leiter die     Widerstandeigenschaften    von  Reizdrähten auf,     um    die durch die Rohrlei  tung fliessende Flüssigkeit gegebenenfalls er  wärmen zu können und so das Einfrieren der  selben bei kalter Witterung zu verhindern.  



  Beim Ausführungsbeispiel nach     Fig.    3 sind  die elektrischen Leiter b in parallel zur Rohr  achse verlaufenden     Wulstteilen        a1    der Rohr  wandung eingebettet.  



  Die Rohrleitung gemäss     Fig.    4 weist, ähn  lich wie die Rohrleitung nach     Fig.3,    hohle       Wulstteile        a2    auf, die aber in der Längsrich  tung geschlitzt sind, so dass die elektrischen  Leiter b hier nachträglich in diese     Wulstteile     eingelegt werden können. Der Zweck dieser  Leiter ist aber der gleiche, nämlich der der  Stromführung bei verlegter Rohrleitung zu       Reizzwecken.     



  Der Erfindungsgegenstand ist als  Rohr  leitung      bezeichnet.    worden. In den meisten  Fällen wird diese Leitung biegsam sein, so  dass unter dieser Bezeichnung auch eine       Schlauchleitung    zu verstehen ist.



  Pipeline made of electrically insulating material The present invention relates to a pipeline made of an electrically insulating material, such as. B. polyethylene, PolS - invl- chloride or the like. It often happens that such lines are used for liquids that freeze in cold weather.



  The aim of the invention is to eliminate this risk in such pipelines, in that electrical conductors having the properties of heating resistors are seen in at least two parts of the pipe wall running parallel to the pipe axis.



  On the accompanying drawing, three embodiments of the subject invention are illustrated.



       Fig.1 is. a longitudinal section through a section of a pipeline according to the first embodiment; Fig. \? is a cross section through this pipeline; 3 and 4 are cross-sections through pipelines according to the second and third embodiment.



  The pipe a according to FIGS. 1 and 2 be made of a thermoplastic material, such as. B. polyethylene, Polyvinvl chloride or the like, although they are also made of a different electrically insulating material, such as. B. rubber, could exist. It is expediently manufactured using the so-called extrusion process. In the same operation, electrical conductors b are provided on two opposite, parallel to the pipe axis parts of the pipe wall wall, which, when the pipeline is laid, can be used to conduct electricity.



  It would also be possible to provide a larger number of conductors evenly distributed around the pipe wall.



  In one case as in the other, these conductors have the resistance properties of stimulus wires in order to be able to warm the liquid flowing through the pipeline if necessary and thus to prevent the same from freezing in cold weather.



  In the embodiment according to FIG. 3, the electrical conductors b are embedded in bead parts a1 of the pipe wall running parallel to the pipe axis.



  The pipeline according to FIG. 4 has, similarly to the pipeline according to FIG. 3, hollow bead parts a2, which, however, are slotted in the longitudinal direction so that the electrical conductors b can be subsequently inserted into these bead parts here. The purpose of these conductors, however, is the same, namely that of carrying current when the pipeline is laid for stimulation purposes.



  The subject of the invention is referred to as a pipe line. been. In most cases, this line will be flexible, so that this term also includes a hose line.

 

Claims (1)

PATENTANSPRUCH Rohrleitung aus elektrisch isolierendem Material, dadurch gekennzeichnet, dass in min destens zwei parallel zur Rohrachse verlaufen den Teilen der Rohrwandung elektrische, die Eigenschaften von Heizwiderständen aufwei sende Leiter vorgesehen sind. UNTERANSPRÜCHE 1. Rohrleitung nach Patentanspruch, da durch gekennzeichnet, dass diese Leiter inner- halb der zylindrischen Aussenfläche der Rohr wandung eingebettet sind. 2. Rohrleitung nach Patentanspruch, da durch gekennzeichnet, dass diese Leiter in parallel zur Rohrachse verlaufenden Wulst teilen der Rohrwandung eingebettet sind. 3. PATENT CLAIM Pipeline made of electrically insulating material, characterized in that in at least two parts of the pipe wall running parallel to the pipe axis, electrical conductors with the properties of heating resistors are provided. SUB-CLAIMS 1. Pipeline according to patent claim, characterized in that these conductors are embedded inside the cylindrical outer surface of the pipe wall. 2. Pipeline according to claim, characterized in that these conductors are embedded in parts of the tube wall running parallel to the tube axis bead. 3. Rohrleitung nach Patentanspruch, da durch gekennzeichnet, dass diese Leiter in par allel zur Rohrachse verlaufenden, in der Längsrichtung geschlitzten Wulstteilen der Rohrwandung eingelegt sind. Pipeline according to patent claim, characterized in that these conductors are inserted in bead parts of the pipe wall which run parallel to the pipe axis and are slotted in the longitudinal direction.
CH323096D 1956-09-25 1956-09-25 Pipeline made of electrically insulating material CH323096A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH323096T 1956-09-25

Publications (1)

Publication Number Publication Date
CH323096A true CH323096A (en) 1957-07-15

Family

ID=4499024

Family Applications (1)

Application Number Title Priority Date Filing Date
CH323096D CH323096A (en) 1956-09-25 1956-09-25 Pipeline made of electrically insulating material

Country Status (1)

Country Link
CH (1) CH323096A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568722A (en) * 1968-09-17 1971-03-09 Ppg Industries Inc Longitudinally reinforced flexible duct
EP0133855A1 (en) * 1983-08-11 1985-03-13 Pipeline-Coating GmbH Concrete cover for pipelines and method of manufacturing it
WO1998042924A1 (en) * 1997-03-25 1998-10-01 Raoul Girod Frost-resistant piping for the transportation of liquid
EP3133329A1 (en) * 2015-08-20 2017-02-22 TI Automotive (Fuldabrück) GmbH Heatable motor vehicle tube and method of manufacturing same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568722A (en) * 1968-09-17 1971-03-09 Ppg Industries Inc Longitudinally reinforced flexible duct
EP0133855A1 (en) * 1983-08-11 1985-03-13 Pipeline-Coating GmbH Concrete cover for pipelines and method of manufacturing it
WO1998042924A1 (en) * 1997-03-25 1998-10-01 Raoul Girod Frost-resistant piping for the transportation of liquid
WO1998042925A1 (en) * 1997-03-25 1998-10-01 Raoul Girod Cable to protect piping from the effects of frost
FR2761386A1 (en) * 1997-03-25 1998-10-02 Raoul Girod DEVICE PREVENTING THE BREAKAGE OF A PIPE IN THE EVENT OF FREEZING
EP3133329A1 (en) * 2015-08-20 2017-02-22 TI Automotive (Fuldabrück) GmbH Heatable motor vehicle tube and method of manufacturing same
WO2017029239A1 (en) * 2015-08-20 2017-02-23 TI Automotive (Fuldabrück) GmbH Heatable motor-vehicle pipeline and method for producing a heatable motor-vehicle pipeline

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