GB1204405A - Method for supplying electricity to a heat-generating pipe utilizing skin effect of a.c. - Google Patents

Method for supplying electricity to a heat-generating pipe utilizing skin effect of a.c.

Info

Publication number
GB1204405A
GB1204405A GB1403068A GB1403068A GB1204405A GB 1204405 A GB1204405 A GB 1204405A GB 1403068 A GB1403068 A GB 1403068A GB 1403068 A GB1403068 A GB 1403068A GB 1204405 A GB1204405 A GB 1204405A
Authority
GB
United Kingdom
Prior art keywords
pipes
conductors
switch
pipeline
supply
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
GB1403068A
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 GB1204405A publication Critical patent/GB1204405A/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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/0014—Devices wherein the heating current flows through particular resistances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
    • F24H1/102—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance
    • F24H1/105—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance formed by the tube through which the fluid flows

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pipeline Systems (AREA)

Abstract

1,204,405. Pipeline heater. CHISSO CORP. 22 March, 1968 [22 March, 1967], No. 14030/68. Heading H5H. [Also in Division H2] A system comprising an A.C. source, a load, a body to be heated and at least one ferromagnetic pipe for generating heat when current passes through it includes switching means whereby the pipe or the load may be selectively connected to the supply. The body to be heated may be a pipeline 22 used to transport oil from a sea bed oil well which is heated by three ferromagnetic pipes 1, 2, 3 disposed in heat transfer relationship with the pipeline 22. Through the pipe 1 are situated three conductors 4, 4<SP>1</SP>, 4<SP>11</SP> and through the pipes 2, 3, conductors 5, 6, respectively. The conductors 5, 6 are connected to the pipes 2, 3 at the ends 14, 16 and to two of the phases of a three-phase supply 20 by switches 9, 10. The conductors 4, 4<SP>1</SP> , 4<SP>11</SP> are connected to the third phase of the supply 20 by a switch 18 and to the end 12 of pipe 1 by a switch 7. The remaining ends 13, 15, 17 of the pipes are connected to the neutral point 19 of the supply 20. With switches 9, 10, 7, 18 closed current flows along conductors 4, 4<SP>1</SP>, 4<SP>11</SP>, 5, 6, returning to the neutral 19 by way of pipes 1, 2, 3. Heat is thus generated in the pipes 1, 2, 3 by currents which flow along the inner surfaces of the pipes due to the so-called skin effect, the heat being transferred to the pipeline 22 thereby heating the contents thereof. When the contents are warmed sufficiently switches 9, 10, 7, 18 are opened and switch 8 closed whereupon a load such as a three-phase pump motor 11 is energized by the supply 20, the motor then being used to pump the liquid oil along the pipeline 22. A transformer 21 in the circuit of the pump motor 11 may be provided with a tertiary winding to energize a relay which may be associated with the switch 7 thus automatically opening the switch 7 when the pump motor is energized.
GB1403068A 1967-03-22 1968-03-22 Method for supplying electricity to a heat-generating pipe utilizing skin effect of a.c. Expired GB1204405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1784567 1967-03-22

Publications (1)

Publication Number Publication Date
GB1204405A true GB1204405A (en) 1970-09-09

Family

ID=11954993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1403068A Expired GB1204405A (en) 1967-03-22 1968-03-22 Method for supplying electricity to a heat-generating pipe utilizing skin effect of a.c.

Country Status (3)

Country Link
BE (1) BE712586A (en)
GB (1) GB1204405A (en)
NL (1) NL6803827A (en)

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US7673786B2 (en) 2006-04-21 2010-03-09 Shell Oil Company Welding shield for coupling heaters
US7798220B2 (en) 2007-04-20 2010-09-21 Shell Oil Company In situ heat treatment of a tar sands formation after drive process treatment
US7798221B2 (en) 2000-04-24 2010-09-21 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US7831134B2 (en) 2005-04-22 2010-11-09 Shell Oil Company Grouped exposed metal heaters
US7831133B2 (en) 2005-04-22 2010-11-09 Shell Oil Company Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration
US7866386B2 (en) 2007-10-19 2011-01-11 Shell Oil Company In situ oxidation of subsurface formations
US7942203B2 (en) 2003-04-24 2011-05-17 Shell Oil Company Thermal processes for subsurface formations
US8151880B2 (en) 2005-10-24 2012-04-10 Shell Oil Company Methods of making transportation fuel
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US8200072B2 (en) * 2002-10-24 2012-06-12 Shell Oil Company Temperature limited heaters for heating subsurface formations or wellbores
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CN116294215B (en) * 2023-03-29 2023-11-03 绵阳禾本生物工程有限公司 Air heater, stoving hold device

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Also Published As

Publication number Publication date
NL6803827A (en) 1968-09-23
BE712586A (en) 1968-07-31

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PCNP Patent ceased through non-payment of renewal fee