EP0009136B1 - Heizeinrichtung zur Vorwärmung von Heizöl - Google Patents

Heizeinrichtung zur Vorwärmung von Heizöl Download PDF

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Publication number
EP0009136B1
EP0009136B1 EP79103136A EP79103136A EP0009136B1 EP 0009136 B1 EP0009136 B1 EP 0009136B1 EP 79103136 A EP79103136 A EP 79103136A EP 79103136 A EP79103136 A EP 79103136A EP 0009136 B1 EP0009136 B1 EP 0009136B1
Authority
EP
European Patent Office
Prior art keywords
heating
oil
heating element
ohm
heating device
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
EP79103136A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0009136A3 (en
EP0009136A2 (de
Inventor
Hans Dr. Meixner
Andreas Schebler
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT79103136T priority Critical patent/ATE3132T1/de
Publication of EP0009136A2 publication Critical patent/EP0009136A2/de
Publication of EP0009136A3 publication Critical patent/EP0009136A3/xx
Application granted granted Critical
Publication of EP0009136B1 publication Critical patent/EP0009136B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/14—Details thereof
    • F23K5/20—Preheating devices
    • 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
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/141—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds

Definitions

  • the invention relates to a heating device for preheating heating oil, with a heating element made of cold conductor material.
  • the oil burners that are commercially available today are designed in such a way that they can be used for a relatively large output range and that they only have to be adapted to the special needs of the individual customer by inserting a suitable nozzle and adjusting the air supply.
  • resistance-heated electrical preheating is also provided in the oil burner, this would have to be adapted to the respective oil throughput. This would make the assembly work considerably more difficult. It should be ensured that on the one hand a sufficiently high heating of the oil to temperatures e.g. is reached up to over 70 ° C, and with relatively quick reaching the final state.
  • no oil overheating with steam formation may occur, the steam formation in particular being able to impair further oil production.
  • Electric heating by means of a heating winding would therefore also make very complex control electronics necessary. On the other hand, it is always strived to make such oil burners not only as simple as possible, but also. training in a reliable manner.
  • DE-A-24 10 999 describes a heating device with a honeycomb-shaped PTC thermistor, for which it is stated that it can also be used for heating 01.
  • the oil to be heated must inevitably come into direct contact with the surface of the PTC material and with the layer electrodes located thereon, specifically with a voltage of 220 V present between the layer electrodes of this PTC material.
  • DE-A-28 08 449 describes a similar honeycomb PTC thermistor element, for which dimensions are specified which are suitable for air heating.
  • the air to be heated is in direct contact with the PTC material, its electrodes and thus also with the applied electrical voltage.
  • a PTC thermistor is a component made of a material based on the barium titanate, which has a self-regulating temperature-resistance characteristic due to known manufacturing measures and doping.
  • the so-called Curie temperature a specific material size, leads to an extreme increase in the specific electrical resistance with a further rise in temperature.
  • Fig. 1 shows a diagram from which the temperature-resistance characteristic with an indication of the Curie temperature and the slope emerge.
  • FIG. 2 An embodiment of a heating device according to the invention is shown in FIG. 2 described below. In this embodiment there are details which have already been described in DE ⁇ U ⁇ 78 11 098. With 1 the heating device is designated, which has a heat dissipation body 32 with a space 33 provided for receiving the PTC heating element 4. This heating element has the physical sizes specified. Electrodes 8 are shown in section on the surfaces of the plate-shaped heating element 4 which are perpendicular to the plane of the figure.
  • the heating element 4 is wedged into the intermediate space 33 by means of the wedge-shaped bodies 37 and 137, which have a wedge angle y, in such a way that, apart from one firm mounting also good thermal contact from both surfaces of the heating element 4 on the heat-dissipating surfaces 35 and 36 of the heat dissipation body 32 takes place.
  • 10 ductile inserts are designated.
  • 11 connecting lines of the electrodes 8 are designated, to which a voltage of 110 volts or 220 volts (or an intermediate voltage value) can be applied.
  • the upper portion 132 of the heat dissipation body 32 in the illustration of the figure is designed such that a tube with good thermal contact can be inserted into the semicircular cylindrical recess 133, as is usually used as a copper tube for oil production from the tank system to the burner.
  • 134 denotes a counterpart which is expediently to be used and matches the portion 132. This has the portion of a recess which supplements the recess 133 to form a cylinder. With the help of the screws 135, this part 134 can be fastened on the heat dissipation body 32, as can be seen, in such a way that the copper tube 5 of the oil recovery line is firmly clamped with good thermal contact.
  • the section 134 can also be replaced by a perhaps less complex mounting of the heat dissipation body 32 on the tube 5.
  • a heat dissipation body for a heating device has a measured length (perpendicular to the plane of the figure) of e.g. 4.5 cm for a tube 5 with e.g. 8 mm outer diameter.
  • the PTC thermistor plate 4 has a thickness of approximately 2 mm and 10 cm 2 total area of both plate surfaces.
  • a PTC thermistor material for a given operating voltage of 220 volts one is used which has a Curie temperature T c of 160 ° C and at this reference temperature T c has a specific electrical resistance ⁇ ° of approx. 17000 Ohm - cm .
  • the Curie temperature is chosen so that it is about 10 to 120 ° higher than the temperature that the oil to be heated is to reach at maximum.
  • the oil flowing through at the specified 220 volt operating voltage reaches approximately 110 ° C.
  • the temperature of the PTC thermistor plate 4 adjusts itself to a temperature of 170 ° C at which the plate delivers 35 watts of heating power. This is achieved when the slope the increase in resistance is at least 20% C.
  • an amount of 2 l of oil flowing through per hour is then heated to 73 ° C. with a heating output of 70 watts.
  • the lower limit of the respective range of variation for the p o values in question is approximately a factor 10 lower than the values given above. In each case smaller values of p ° lead to a somewhat higher temperature of the oil flowing through and to be heated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Control Of Resistance Heating (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Spray-Type Burners (AREA)
EP79103136A 1978-09-15 1979-08-24 Heizeinrichtung zur Vorwärmung von Heizöl Expired EP0009136B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79103136T ATE3132T1 (de) 1978-09-15 1979-08-24 Heizeinrichtung zur vorwaermung von heizoel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2840242A DE2840242C2 (de) 1978-09-15 1978-09-15 Heizeinrichtung zur Vorwärmung von Heizöl
DE2840242 1978-09-15

Publications (3)

Publication Number Publication Date
EP0009136A2 EP0009136A2 (de) 1980-04-02
EP0009136A3 EP0009136A3 (en) 1980-04-16
EP0009136B1 true EP0009136B1 (de) 1983-04-20

Family

ID=6049565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79103136A Expired EP0009136B1 (de) 1978-09-15 1979-08-24 Heizeinrichtung zur Vorwärmung von Heizöl

Country Status (6)

Country Link
US (1) US4371778A (ja)
EP (1) EP0009136B1 (ja)
JP (1) JPS5541400A (ja)
AT (1) ATE3132T1 (ja)
DE (1) DE2840242C2 (ja)
DK (1) DK385279A (ja)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017057B1 (de) * 1979-03-27 1982-03-10 Danfoss A/S Vorrichtung zum Vorwärmen von Heizöl
DE7912234U1 (de) * 1979-04-26 1979-07-26 Siemens Ag, 1000 Berlin Und 8000 Muenchen Heizeinrichtung zum erwaermen von heizoel
DE7916927U1 (de) * 1979-06-12 1979-09-13 Siemens Ag, 1000 Berlin Und 8000 Muenchen Durchlauferhitzer
EP0055350A3 (de) * 1980-12-29 1982-09-08 Steinel GmbH & Co. KG Vorrichtung zur Verflüssigung eines schmelzbaren Klebers
AT394296B (de) 1981-01-26 1992-02-25 Nesvadba Peter Gmbh Selbstregelndes heizelement
DE3138385A1 (de) * 1981-09-26 1983-04-07 Hans Wilms GmbH & Co, 4050 Mönchengladbach Vorrichtung zum vorwaermen von heizoel
EP0290159B1 (en) * 1987-04-21 1994-12-21 TDK Corporation PTC heating device
DE3918663A1 (de) * 1989-06-08 1990-12-13 Eberspaecher J Anordnung zur brennstoffvorwaermung fuer einen ultraschallzerstaeuber fuer heizgeraete
US4998008A (en) * 1989-10-31 1991-03-05 Walther Menhardt Heating element
DE59200295D1 (de) * 1991-08-12 1994-08-25 Siemens Matsushita Components Heizvorrichtung zum Erwärmen strömender Medien.
US5724478A (en) * 1996-05-14 1998-03-03 Truheat Corporation Liquid heater assembly
EP1290916B1 (de) * 2000-06-14 2003-12-17 Elias Russegger Elektrische heizvorrichtung
DE10347509B4 (de) * 2003-10-13 2006-08-10 Webasto Ag Heizgerät mit einer Zerstäuberdüse
KR102476376B1 (ko) * 2017-08-31 2022-12-12 현대자동차주식회사 전기차량의 냉각수 가열장치
KR102055678B1 (ko) * 2018-10-11 2019-12-13 엘지전자 주식회사 정수기
US11092358B1 (en) * 2020-02-14 2021-08-17 Eberspächer Catem Gmbh & Co. Kg Electrical heating device

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7804316U1 (de) * 1978-11-02 Siemens Ag, 1000 Berlin Und 8000 Muenchen Tauchsieder
DE7811098U1 (de) * 1978-08-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Heizer mit f erroelektrischem Keramik-Heizelement
US1140864A (en) * 1914-10-24 1915-05-25 James M Aubery Means for thawing out water-pipes.
US1413681A (en) * 1921-02-17 1922-04-25 Charles R Piggins Carburetor heater
US1423742A (en) * 1921-05-05 1922-07-25 Harry A Silverman Heater unit
US2104940A (en) * 1936-09-12 1938-01-11 Horace E Woolery Oil burner
US2397988A (en) * 1942-01-27 1946-04-09 Sanmyer Corp Liquid fuel burner
FR1194619A (fr) * 1958-04-11 1959-11-10 Dispositif de réchauffage pour combustible liquide
CH375068A (de) * 1958-04-30 1964-02-15 Siemens Ag Keramischer Widerstand mit hohem positivem Temperaturkoeffizienten und vernachlässigbar kleiner Spannungsabhängigkeit des Widerstandswertes
US3501619A (en) * 1965-07-15 1970-03-17 Texas Instruments Inc Self-regulating thermal apparatus
US3338476A (en) * 1965-10-24 1967-08-29 Texas Instruments Inc Heating device for use with aerosol containers
US3375774A (en) * 1967-01-05 1968-04-02 Matsushita Electric Ind Co Ltd Fully automatic electric coffee pot
DE1501687A1 (de) * 1968-02-29 1969-10-30 Weishaupt Max Gmbh OElvorwaermer
US3564199A (en) * 1968-12-30 1971-02-16 Texas Instruments Inc Self-regulating electric fluid-sump heater
US3824328A (en) * 1972-10-24 1974-07-16 Texas Instruments Inc Encapsulated ptc heater packages
JPS5148815B2 (ja) * 1973-03-09 1976-12-23
DE2316054A1 (de) * 1973-03-30 1974-10-10 Siemens Ag Kaltleiterheizung fuer kraftstoff
US4017715A (en) * 1975-08-04 1977-04-12 Raychem Corporation Temperature overshoot heater
GB1502479A (en) * 1974-11-20 1978-03-01 Matsushita Electric Ind Co Ltd Sealed thermostatic electric resistance heaters
JPS53110133A (en) * 1977-03-07 1978-09-26 Tdk Electronics Co Ltd Porcelain heating element made from positive characteristic semiconductor
DE2743880C3 (de) * 1977-09-29 1981-05-14 Siemens AG, 1000 Berlin und 8000 München Heizeinrichtung mit einem optimierten Heizelement aus Kaltleiter-Material
DE2806159C3 (de) * 1978-02-14 1980-09-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Tauchsieder
DE2808449A1 (de) * 1978-02-28 1979-08-30 Weiss Kg Alfons In eine blende einbaubare schaltuhr, insbesondere herdschaltuhr
DE2816076A1 (de) * 1978-04-13 1979-10-25 Siemens Ag Heizer mit ferroelektrischem keramik-heizelement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Keramische Zeitschrift", Band 12, 1964, S. 766-770 *

Also Published As

Publication number Publication date
EP0009136A3 (en) 1980-04-16
EP0009136A2 (de) 1980-04-02
DE2840242C2 (de) 1984-08-23
US4371778A (en) 1983-02-01
DK385279A (da) 1980-03-16
ATE3132T1 (de) 1983-05-15
DE2840242A1 (de) 1980-03-27
JPS5541400A (en) 1980-03-24

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