WO1990010817A1 - Systeme de chauffage de tuyaux utilisant un courant electrique - Google Patents

Systeme de chauffage de tuyaux utilisant un courant electrique Download PDF

Info

Publication number
WO1990010817A1
WO1990010817A1 PCT/FI1990/000068 FI9000068W WO9010817A1 WO 1990010817 A1 WO1990010817 A1 WO 1990010817A1 FI 9000068 W FI9000068 W FI 9000068W WO 9010817 A1 WO9010817 A1 WO 9010817A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
conduit
wall
pipes
wires
Prior art date
Application number
PCT/FI1990/000068
Other languages
English (en)
Inventor
Urpo Vainio
Original Assignee
Urpo Vainio Oy
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 Urpo Vainio Oy filed Critical Urpo Vainio Oy
Publication of WO1990010817A1 publication Critical patent/WO1990010817A1/fr
Priority to NO91914618A priority Critical patent/NO914618L/no
Priority to SE9103481A priority patent/SE469533B/sv

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/09—Component parts or accessories
    • E03B7/14—Devices for thawing frozen pipes
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/09—Component parts or accessories
    • E03B7/10—Devices preventing bursting of pipes by freezing
    • E03B7/12—Devices preventing bursting of pipes by freezing by preventing freezing
    • 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
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/30—Heating of pipes or pipe systems
    • F16L53/35—Ohmic-resistance heating
    • F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons

Definitions

  • FIG. 1 One embodiment of the invention is described by means of enclosed figure 1.
  • an extension is cast forming a conduit 2 into which a protected resistance wire or wires 3 can be drawn either at the last stage of manufacture or later, in the same way as electric cables are drawn into plastic tubing used in buildings.
  • the conduit for the resistance wires can also be made in the wall of the tube already at the extrusion stage of manufacture.
  • the conduit can also be made on top of a conventional pipe by pushing into a plastic strip 5 as shown in figure 2. The hems of the plastic strip are merely pushed round the pipe.
  • the resistance, protection, and structure of the wires can in general vary according to uses.
  • the wires can be locked in place and even cast together with the pipe material to improve thermal conductivity if, during manufacture or later, holes 4 are made through which appropriate binding and filling compound is compressed.
  • the compound can be compressed through the wall without need for the holes 4 by means of an extruder provided with an appropriate perforator. During installation it is generally practicable to put the cable below the pipe center in order to improve thermal conductivity.
  • conduits 2 instead of one conduit there can be several conduits 2 if necessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Surface Heating Bodies (AREA)
  • Resistance Heating (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

Système de chauffage de tuyaux dans lequel la chaleur nécessaire à la fonte de la glace, par exemple, est générée par le passage d'un courant électrique dans un fil de résistance (3), que l'on introduit dans la paroi (1) ou dans un tube (2) prévu à l'extérieur du tuyau lors de la fabrication du tuyau en matière plastique ou analogue.
PCT/FI1990/000068 1989-03-16 1990-03-16 Systeme de chauffage de tuyaux utilisant un courant electrique WO1990010817A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NO91914618A NO914618L (no) 1989-03-16 1991-11-25 Elektrisk varmeelement for roer
SE9103481A SE469533B (sv) 1989-03-16 1991-11-25 Elstroemsvaermare foer roer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI891233 1989-03-16
FI891233A FI82510C (fi) 1989-03-16 1989-03-16 Eluppvaermare foer roer. alkupaeivaen siirto 25.05.90

Publications (1)

Publication Number Publication Date
WO1990010817A1 true WO1990010817A1 (fr) 1990-09-20

Family

ID=8528063

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1990/000068 WO1990010817A1 (fr) 1989-03-16 1990-03-16 Systeme de chauffage de tuyaux utilisant un courant electrique

Country Status (5)

Country Link
CA (1) CA2062738A1 (fr)
FI (1) FI82510C (fr)
NO (1) NO914618L (fr)
SE (1) SE469533B (fr)
WO (1) WO1990010817A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007019564A3 (fr) * 2005-08-09 2007-04-05 Watlow Electric Mfg Systemes rechauffeurs de conduites modulaires
US7626146B2 (en) 2005-08-09 2009-12-01 Watlow Electric Manufacturing Company Modular heater systems
US7919733B2 (en) 2005-08-09 2011-04-05 Watlow Electric Manufacturing Company Modular heater systems
CN103122811A (zh) * 2012-11-28 2013-05-29 襄阳康捷飞龙电气有限公司 汽车用加热油管
US8809751B2 (en) 2005-08-09 2014-08-19 Watlow Electric Manufacturing Company Modular heater system
US10557584B2 (en) 2015-12-16 2020-02-11 Watlow Electric Manufacturing Company Modular heater systems

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214571A (en) * 1963-05-27 1965-10-26 William J Indoe Heating cable and connectors therefor
DE1600544A1 (de) * 1967-03-03 1970-02-05 Poppe Dipl Ing Ulrich Rohr fuer stroemende Gase oder Fluessigkeit fuehrende Rohrleitungen
US3617699A (en) * 1969-03-10 1971-11-02 Donald F Othmer A system for electrically heating a fluid being transported in a pipe
US3706872A (en) * 1970-05-15 1972-12-19 William J Trabilcy System for electrically heating fluid-conveying pipe lines and other structures
SE360133B (fr) * 1968-06-05 1973-09-17 S M Elevestad
US4281238A (en) * 1978-09-18 1981-07-28 Shin-Etsu Polymer Co., Ltd. Tubular jacket heater
US4329569A (en) * 1979-05-16 1982-05-11 Bulten-Kanthal Ab Resilient snap-on electric heating jacket for tubular objects
DE2414327C2 (de) * 1973-06-15 1982-10-14 Thermon Manufacturing Co., San Marcos, Tex. Vorrichtung zur Wärmeübertragung
US4581521A (en) * 1980-08-28 1986-04-08 Grise Frederick Gerard J Electrically heated pipe assembly
WO1988005988A1 (fr) * 1987-02-09 1988-08-11 Bylin Heating Systems, Inc. Procede et agencement de chauffage et d'isolation pour un reseau de conduites installees

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214571A (en) * 1963-05-27 1965-10-26 William J Indoe Heating cable and connectors therefor
DE1600544A1 (de) * 1967-03-03 1970-02-05 Poppe Dipl Ing Ulrich Rohr fuer stroemende Gase oder Fluessigkeit fuehrende Rohrleitungen
SE360133B (fr) * 1968-06-05 1973-09-17 S M Elevestad
US3617699A (en) * 1969-03-10 1971-11-02 Donald F Othmer A system for electrically heating a fluid being transported in a pipe
US3706872A (en) * 1970-05-15 1972-12-19 William J Trabilcy System for electrically heating fluid-conveying pipe lines and other structures
DE2414327C2 (de) * 1973-06-15 1982-10-14 Thermon Manufacturing Co., San Marcos, Tex. Vorrichtung zur Wärmeübertragung
US4281238A (en) * 1978-09-18 1981-07-28 Shin-Etsu Polymer Co., Ltd. Tubular jacket heater
US4329569A (en) * 1979-05-16 1982-05-11 Bulten-Kanthal Ab Resilient snap-on electric heating jacket for tubular objects
US4581521A (en) * 1980-08-28 1986-04-08 Grise Frederick Gerard J Electrically heated pipe assembly
WO1988005988A1 (fr) * 1987-02-09 1988-08-11 Bylin Heating Systems, Inc. Procede et agencement de chauffage et d'isolation pour un reseau de conduites installees

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007019564A3 (fr) * 2005-08-09 2007-04-05 Watlow Electric Mfg Systemes rechauffeurs de conduites modulaires
US7626146B2 (en) 2005-08-09 2009-12-01 Watlow Electric Manufacturing Company Modular heater systems
US7919733B2 (en) 2005-08-09 2011-04-05 Watlow Electric Manufacturing Company Modular heater systems
US7964826B2 (en) 2005-08-09 2011-06-21 Watlow Electric Manufacturing Company Modular heater systems
TWI448639B (zh) * 2005-08-09 2014-08-11 Watlow Electric Mfg 模組化加熱器系統
US8809751B2 (en) 2005-08-09 2014-08-19 Watlow Electric Manufacturing Company Modular heater system
CN103122811A (zh) * 2012-11-28 2013-05-29 襄阳康捷飞龙电气有限公司 汽车用加热油管
US10557584B2 (en) 2015-12-16 2020-02-11 Watlow Electric Manufacturing Company Modular heater systems

Also Published As

Publication number Publication date
FI82510B (fi) 1990-11-30
SE469533B (sv) 1993-07-19
NO914618D0 (no) 1991-11-25
SE9103481L (sv) 1992-01-24
FI891233A0 (fi) 1989-03-16
CA2062738A1 (fr) 1990-11-26
NO914618L (no) 1992-04-21
SE9103481D0 (sv) 1991-11-25
FI82510C (fi) 1991-03-11

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