EP0239928A2 - Appareil de chauffage électrique pour fluides - Google Patents

Appareil de chauffage électrique pour fluides Download PDF

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Publication number
EP0239928A2
EP0239928A2 EP87104432A EP87104432A EP0239928A2 EP 0239928 A2 EP0239928 A2 EP 0239928A2 EP 87104432 A EP87104432 A EP 87104432A EP 87104432 A EP87104432 A EP 87104432A EP 0239928 A2 EP0239928 A2 EP 0239928A2
Authority
EP
European Patent Office
Prior art keywords
electrodes
voltage source
neutral
electrode
heater
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.)
Withdrawn
Application number
EP87104432A
Other languages
German (de)
English (en)
Other versions
EP0239928A3 (fr
Inventor
Maciej Mazur
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.)
Przedsiebiorstwo Projektowania i Dostaw Kompletnych Obiektow Przemyslowych "Chemadex"
Original Assignee
Przedsiebiorstwo Projektowania i Dostaw Kompletnych Obiektow Przemyslowych "Chemadex"
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 Przedsiebiorstwo Projektowania i Dostaw Kompletnych Obiektow Przemyslowych "Chemadex" filed Critical Przedsiebiorstwo Projektowania i Dostaw Kompletnych Obiektow Przemyslowych "Chemadex"
Publication of EP0239928A2 publication Critical patent/EP0239928A2/fr
Publication of EP0239928A3 publication Critical patent/EP0239928A3/fr
Withdrawn legal-status Critical Current

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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
    • H05B3/60—Heating arrangements wherein the heating current flows through granular powdered or fluid material, e.g. for salt-bath furnace, electrolytic heating
    • 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
    • F24H1/106—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 electrodes

Definitions

  • the invention relates to an electrical heating device for liquids, in which the liquid is heated by electrical cross currents flowing between electrodes immersed in the liquid;
  • the invention relates to an electric heater for rapid heating of fillings in sugar plants.
  • Electrical heating devices for heating liquids in particular filling masses in sugar factories by means of cross currents, are known which flow through the liquid between two electrodes, one of which is grounded in the middle part of the device.
  • the second, usually ring-shaped surrounding electrode is part of the casing of the device and connected to the voltage source.
  • the space between the electrodes is filled by the liquid to be heated, through which the cross currents flow between the electrodes.
  • Devices of this type are known, for example, from: E. Hugot "Handbook of Cane Sugar Engineering", 1972, pages 758 to 761 or from George P. Meade and James C.P. Chen “Cane Sugar Handbook", 1977, page 316.
  • the liquid to be heated flows through the annular gap between the two electrodes in the axial direction of the tube in the known device and is heated during this movement by the cross currents flowing between the electrodes.
  • the temperature difference between the incoming liquid and the liquid leaving the heater depends on the strength of the current flowing through the liquid to be heated, the distance between the electrodes, the flow rate of the liquid between the electrodes and the length of the electrodes, which are generally the same are long. Their length is generally 1.5 to 2 m.
  • the known heaters have relatively large dimensions.
  • the need to bring the electrodes between which the cross currents flow closer to each other in order to achieve more effective heating causes a reduction in the flow area for the liquid to be heated and thus an increase in the flow rate through the heater at constant flow rate, which forces the length of the electrodes and thus to increase the length of the entire heater.
  • the invention has for its object to eliminate the disadvantages and shortcomings of known heaters and to provide an electric heater for liquid, which not only has smaller dimensions, but above all a complete safety of the operator of the heater and the associated facilities and installations without guaranteed by special earth connections.
  • an electric heater for liquids in particular for fillers in the sugar industry, in the metallic housing through which the liquid to be heated flows, electrodes are arranged, some of which are connected to the voltage source and the remaining part to the earthed neutral pole of the voltage source feeding the heater is connected.
  • the metallic housing of the heater also represents its outer extreme electrode and is connected to the neutral, grounded pole of the electrical voltage source that feeds the heater.
  • a central electrode connected to the voltage source is arranged.
  • each of the electrodes connected to the grounded neutral pole of the electrical voltage source is between two electrodes connected to the voltage source and the electrodes connected to the voltage source are each between two electrodes connected to the neutral, grounded pole of the voltage source.
  • the central electrode connected to the voltage source is preferably in the form of an elongated rod.
  • the center electrodes which are arranged between the central electrode and the housing of the heater, which is the neutral electrode of the heater, which is connected to the grounded, neutral pole of the voltage source, have the form of cylinders which are open on both sides .
  • the efficiency and operational effectiveness is also increased because the division of the liquid flowing through the heater into a larger amount of partial flows flowing between the individual pairs of electrodes allows higher operating currents to be used and a larger amount of heat to be transferred to the liquid flowing through. This in turn means that the length of the heater can be shortened with maximum use of its interior.
  • a cylindrical housing 1 is connected as a neutral electrode, connected to earth at 2 and connected to the neutral pole of the supply voltage source.
  • a conical hood 3 is placed, which merges into an inflow nozzle 4, through which the liquid to be heated is supplied.
  • a conical hood 5 is attached to the lower end of the cylindrical housing 1, which merges into a drain port 6.
  • a neutral electrode 7 is arranged coaxially to the housing 1 and is connected to the housing 1 via a bracket 8.
  • the neutral electrode 7 has the shape of an elongated cylinder. It is mechanically and electrically connected to the housing 1 through the console 8, so that it is also grounded via the earth connection 2.
  • the two neutral electrodes, namely the housing 1 and the electrode 7 are preferably longer than the one located in the center and arranged on the axis of the housing 1 active electrode 10, which has the shape of an elongated rod, and longer than that between the neutral electrode 7 and the neutral outer electrode, that is the active electrode 9 in the form of an elongated cylinder located in the housing.
  • the two active electrodes ie the central electrode 10 and the cylindrical active electrode 9, are connected to the voltage source by means of supply lines 13 and are insulated from the neutral electrodes, ie the housing and the cylindrical electrode 7 by means of lead-through insulators 11 and by means of support insulators 12.
  • the heater works as follows: The liquid to be heated which is supplied via the inlet connection 4 flows between the electrodes 1, 7, 9 and 10 and is divided into individual flow branches. At right angles to this, cross currents flow between the neutral electrodes 1 and 7, which give rise to current heat as a result of the volume resistance, as a result of which the liquid is heated. The heated liquid is discharged from the heater via the drain connection 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Resistance Heating (AREA)
  • Resistance Heating (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
EP87104432A 1986-04-01 1987-03-25 Appareil de chauffage électrique pour fluides Withdrawn EP0239928A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL258715 1986-04-01
PL25871586 1986-04-01

Publications (2)

Publication Number Publication Date
EP0239928A2 true EP0239928A2 (fr) 1987-10-07
EP0239928A3 EP0239928A3 (fr) 1988-03-02

Family

ID=20030946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104432A Withdrawn EP0239928A3 (fr) 1986-04-01 1987-03-25 Appareil de chauffage électrique pour fluides

Country Status (4)

Country Link
EP (1) EP0239928A3 (fr)
DD (1) DD259026A5 (fr)
HU (1) HUT43449A (fr)
YU (1) YU56887A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217629A (en) * 1988-01-16 1989-11-01 Merwood Ltd Pressure cooker
WO2006119440A2 (fr) 2005-05-04 2006-11-09 Callahan Jeremiah M Dispositif de chauffage de liquide a resistance electrique
WO2007045487A1 (fr) * 2005-10-21 2007-04-26 Samuel Grega Procede et dispositif de traitement thermique physique de fluides liquides
WO2007062432A1 (fr) * 2005-11-23 2007-05-31 Miroslav Markovic Chaudiere et chauffe-eau electriques economiques
JP2013540977A (ja) * 2010-09-10 2013-11-07 アイエスアイ・テクノロジー，リミテッド・ライアビリティ・カンパニー 温度制御付き液体加熱器
EP2661589A1 (fr) * 2011-01-07 2013-11-13 MicroHeat Technologies Pty Ltd. Appareil de chauffage électrique d'un fluide et procédé de chauffage électrique d'un fluide
CN103608101A (zh) * 2011-05-04 2014-02-26 欧凯纳斯公司 物理处理和/或加热介质特别是液体的方法、及实施该方法的设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1525998A (en) * 1921-09-10 1925-02-10 Frederick T Kaelin Electric steam generator
US1534079A (en) * 1922-05-02 1925-04-21 Andrew N Russell Electric steam generator
US1916064A (en) * 1931-11-21 1933-06-27 Frederick Schultz Jr Temperater
US4051345A (en) * 1975-09-26 1977-09-27 Milton Eaton Electrode tip for high voltage electrodes of the type utilized in high voltage boilers
FR2384412A1 (fr) * 1977-03-18 1978-10-13 France Syndicat Fab Sucre Procede et dispositif de chauffage d'un liquide notamment un liquide visqueux, en particulier masse cuite de sucrerie

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1525998A (en) * 1921-09-10 1925-02-10 Frederick T Kaelin Electric steam generator
US1534079A (en) * 1922-05-02 1925-04-21 Andrew N Russell Electric steam generator
US1916064A (en) * 1931-11-21 1933-06-27 Frederick Schultz Jr Temperater
US4051345A (en) * 1975-09-26 1977-09-27 Milton Eaton Electrode tip for high voltage electrodes of the type utilized in high voltage boilers
FR2384412A1 (fr) * 1977-03-18 1978-10-13 France Syndicat Fab Sucre Procede et dispositif de chauffage d'un liquide notamment un liquide visqueux, en particulier masse cuite de sucrerie

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217629A (en) * 1988-01-16 1989-11-01 Merwood Ltd Pressure cooker
WO2006119440A2 (fr) 2005-05-04 2006-11-09 Callahan Jeremiah M Dispositif de chauffage de liquide a resistance electrique
EP1878315A2 (fr) * 2005-05-04 2008-01-16 Jeremiah M. Callahan Dispositif de chauffage de liquide a resistance electrique
EP1878315A4 (fr) * 2005-05-04 2012-01-25 Jeremiah M Callahan Dispositif de chauffage de liquide a resistance electrique
KR101284499B1 (ko) 2005-05-04 2013-07-16 아이에스아이 테크날러지, 엘엘씨 직접 전기 저항 액체 히터
EP2765363A3 (fr) * 2005-05-04 2014-11-26 Jeremiah M. Callahan Dispositif de chauffage de liquide à resistance électrique
WO2007045487A1 (fr) * 2005-10-21 2007-04-26 Samuel Grega Procede et dispositif de traitement thermique physique de fluides liquides
WO2007062432A1 (fr) * 2005-11-23 2007-05-31 Miroslav Markovic Chaudiere et chauffe-eau electriques economiques
JP2013540977A (ja) * 2010-09-10 2013-11-07 アイエスアイ・テクノロジー，リミテッド・ライアビリティ・カンパニー 温度制御付き液体加熱器
EP2661589A1 (fr) * 2011-01-07 2013-11-13 MicroHeat Technologies Pty Ltd. Appareil de chauffage électrique d'un fluide et procédé de chauffage électrique d'un fluide
EP2661589A4 (fr) * 2011-01-07 2014-11-19 Microheat Technologies Pty Ltd Appareil de chauffage électrique d'un fluide et procédé de chauffage électrique d'un fluide
CN103608101A (zh) * 2011-05-04 2014-02-26 欧凯纳斯公司 物理处理和/或加热介质特别是液体的方法、及实施该方法的设备

Also Published As

Publication number Publication date
YU56887A (en) 1988-12-31
DD259026A5 (de) 1988-08-10
HUT43449A (en) 1987-10-28
EP0239928A3 (fr) 1988-03-02

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Inventor name: MAZUR, MACIEJ