GB1366690A - Elongate electrical heating apparatus - Google Patents

Elongate electrical heating apparatus

Info

Publication number
GB1366690A
GB1366690A GB5380771A GB5380771A GB1366690A GB 1366690 A GB1366690 A GB 1366690A GB 5380771 A GB5380771 A GB 5380771A GB 5380771 A GB5380771 A GB 5380771A GB 1366690 A GB1366690 A GB 1366690A
Authority
GB
United Kingdom
Prior art keywords
sections
pipe
conductor
voltage
nov
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.)
Expired
Application number
GB5380771A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JNC Corp
Original Assignee
Chisso Corp
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 Chisso Corp filed Critical Chisso Corp
Publication of GB1366690A publication Critical patent/GB1366690A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
    • H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
    • 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
    • F16L53/34—Heating of pipes or pipe systems using electric, magnetic or electromagnetic fields, e.g. using induction, dielectric or microwave heating

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Induction Heating (AREA)
  • Resistance Heating (AREA)

Abstract

1366690 Skin effect resistance heating element CHISSO CORP 19 Nov 1971 [20 Nov 1970] 53807/71 Heading H5H [Also in Division H2] Elongate A.C. heating apparatus suitable for heating pipelines comprising a source and an element, preferably a ferrous tube for carrying "skin-effect" current, is adapted so that the voltage at any point in the apparatus is of a value sufficiently low so that insulating problems of the conductors employed in the high temperature environment are obviated. As shown the tube is divided into sections 10-13 and together with associated conductors 14-17 form closed loops which are arranged in a line and coupled together via transformers 18-21. If the maximum allowed voltage in any section is V then the output at each secondary is adapted to be V and the currents 22-25 are arranged to have the values i, 2i, 3i, 4i respectively, the voltage drops in the sections being V, V/ 2 , V/ 3 , V/ 4 so that the same power V-i is dissipated in each, and each transformer has a power output equal to the total load in all the sections further from the source than itself. The resistance of the pipe sections 10-13 are adapted to these values by ranging the physical properties of the pipes, or a shunt conductor is employed across the pipe length which may comprise a metallic sheath placed over the insulation of a conductor running through the centre of the pipe to connect with the far end thereof or may comprise a metal filling of the pipe, e.g. with sodium or similar low melting point metal which may be introduced in a liquid state without damage to the insulation of the conductor.
GB5380771A 1970-11-20 1971-11-19 Elongate electrical heating apparatus Expired GB1366690A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10247970A JPS5027225B1 (en) 1970-11-20 1970-11-20

Publications (1)

Publication Number Publication Date
GB1366690A true GB1366690A (en) 1974-09-11

Family

ID=14328574

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5380771A Expired GB1366690A (en) 1970-11-20 1971-11-19 Elongate electrical heating apparatus

Country Status (5)

Country Link
US (1) US3755650A (en)
JP (1) JPS5027225B1 (en)
AU (1) AU463831B2 (en)
DE (1) DE2157530C3 (en)
GB (1) GB1366690A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147776A (en) * 1983-09-22 1985-05-15 Hans Hucke Electrically operated heating installation
CN103152852A (en) * 2013-03-21 2013-06-12 扬中市金元化工电力设备厂 Far infrared heater for pipelines

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002881A (en) * 1974-06-13 1977-01-11 Chevron Research Company System for controlling electrical power in an internal wire impedance heating system
US4031611A (en) * 1974-08-16 1977-06-28 Thermon Manufacturing Company Method of making preinsulated pipe assembly
US3983360A (en) * 1974-11-27 1976-09-28 Chevron Research Company Means for sectionally increasing the heat output in a heat-generating pipe
JPS5852315B2 (en) * 1979-02-21 1983-11-21 チッソエンジニアリング株式会社 Epidermal current heating pipeline
US4408117A (en) * 1980-05-28 1983-10-04 Yurkanin Robert M Impedance heating system with skin effect particularly for railroad tank cars
US4571487A (en) * 1983-09-30 1986-02-18 Chevron Research Company Methods and apparatus for supplying electrical power for proximity effect heat-tracing
US4661687A (en) * 1984-07-11 1987-04-28 Raychem Corporation Method and apparatus for converting a fluid tracing system into an electrical tracing system
US4645906A (en) * 1985-03-04 1987-02-24 Thermon Manufacturing Company Reduced resistance skin effect heat generating system
DE3724088A1 (en) * 1987-07-21 1989-02-02 Ewikon Entwicklung Konstr SURFACE HEATING ELEMENT FOR TOOL AND MACHINE PARTS
US5142115A (en) * 1990-02-14 1992-08-25 Kilo Alpha Co. Apparatus for low resistance electric heating of electrically conductive containers
BR0111321A (en) * 2000-05-31 2003-06-10 Pirelli Cavi E Sistemi Spa Method for shielding the magnetic field generated by an electric power transmission line, and, electric power transmission line
NO328383B1 (en) * 2008-02-15 2010-02-08 Nexans Direct electric heating system with high efficiency
NO334151B1 (en) 2012-02-17 2013-12-23 Aker Subsea As Seabed heat assembly and associated process
NO335863B1 (en) 2012-02-21 2015-03-09 Aker Subsea As Direct electric heating assembly for long layouts
JP6162473B2 (en) * 2012-08-21 2017-07-12 トクデン株式会社 Fluid heating device
WO2018172856A2 (en) * 2017-03-22 2018-09-27 Pentair Flow Services Ag High voltage skin effect heater cable with ribbed semiconductive jacket

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3293407A (en) * 1962-11-17 1966-12-20 Chisso Corp Apparatus for maintaining liquid being transported in a pipe line at an elevated temperature
US3523177A (en) * 1967-08-08 1970-08-04 Chisso Corp Method for feeding electric power to heat generating bodies of a plurality of sections
US3575581A (en) * 1969-05-15 1971-04-20 Chisso Corp Heat-generating pipe utilizing skin effect current controlled locally in heat generation by short-circuiting bridges
US3598959A (en) * 1969-08-19 1971-08-10 Chisso Corp Method for partially increasing heat to be generated in a heat-generating pipe utilizing skin effect current

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147776A (en) * 1983-09-22 1985-05-15 Hans Hucke Electrically operated heating installation
CN103152852A (en) * 2013-03-21 2013-06-12 扬中市金元化工电力设备厂 Far infrared heater for pipelines

Also Published As

Publication number Publication date
US3755650A (en) 1973-08-28
AU463831B2 (en) 1975-08-07
DE2157530A1 (en) 1972-05-31
DE2157530C3 (en) 1973-11-08
DE2157530B2 (en) 1973-04-26
AU3568671A (en) 1973-05-24
JPS5027225B1 (en) 1975-09-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee